Ferroli RTA IP 245.3 VB, RTA IP 245.3 VD, RTA IP 245.3 VR, RTA IR 245.3 VB, RTA IR 245.3 VD, RTA IR 245.3 VR, RTA IR 245.3 AS, RTA IR 245.3 AX, RTA IP 245.3 AS, RTA IP 245.3 AX Air-Water Chiller Installation and Operation Manual

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AIR-WATER CHILLERS AND HEAT PUMPS
FOR OUTDOOR INSTALLATION
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INSTALLATION AND OPERATION MANUAL
1
Dear Customer,
Thank you for having purchased a FERROLI product. It is the result of many years of experiences and of particular research studies and has been made with top quality materials and advanced technologies. The CE mark guarantees that the products satisfy
all the applicable European Directives.
The qualitative level is kept under constant control and FERROLI products therefore offer SAFETY, QUALITY and RELIABILITY.
Due to the continuous improvements in technologies and materials, the product specification as well as performances are subject
to variations without prior notice.
Thank you once again for your preference
FERROLI S.p.A
SUMMARY
THIS MANUAL IS DIVIDED INTO SECTIONS. THEIR NAMES APPEAR IN THE HEADING OF EACH PAGE.
GENERAL FEATURES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
General specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
European Directives . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Identification plate of the Unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Presentation of the unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Unit identification code . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Description of the component . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
ACCESSORIES AND OPTIONAL EQUIPMENT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
"Storing and hydronic kit" options . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Options . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Accessories . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Mechanical options . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Electrical options . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
TECHNICAL DATA AND PERFORMANCE - BASE VERSION (VB) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Technical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
NET NOMINAL performances - Base setting up (AB) - Standard plants - EUROVENT certified data . . . . . . . . . . . . . . . . 14
NET NOMINAL performances - Base setting up (AB) - Standard plants . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
NET NOMINAL performances - Base setting up (AB) - Radiant plants . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
NET NOMINAL performances - Low noise setting up (AS) - Standard plants - EUROVENT certified data . . . . . . . . . . . . 16
NET NOMINAL performances - Low noise setting up (AS) - Standard plants . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
NET NOMINAL performances - Low noise setting up (AS) - Radiant plants . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
NET NOMINAL performances - Exta low noise setting up (AX) - Standard plants - EUROVENT certified data . . . . . . . . . 18
NET NOMINAL performances - Exta low noise setting up (AX) - Standard plants . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
NET NOMINAL performances - Extra low noise setting up (AX) - Radiant plants . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
COOLING performances . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
HEATING performances . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Correction factor for the use of glycol in heating mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
Correction factor for the use of glycol in cooling mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
Fouling factors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
TECHNICAL DATA AND PERFORMANCE - DESUPERHEATER VERSION (VD) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
NET NOMINAL performances - IR unit - Standard plants . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
NET NOMINAL performances - IP unit - Standard plants . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
Desuperheaters VD performances . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
Corrective factors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
TECHNICAL DATA AND PERFORMANCE - RECOVERY VERSION (VR) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
NET NOMINAL performances - IR unit - Standard plants . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
Total recovery VR performances . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
BR - BP UNIT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
Corrective factors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
NOISE LEVELS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
OPERATING LIMITS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
WATER PRESSURE DROP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
Plant side exchanger . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
Desuperheaters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
Total recovery exchanger . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
WORKING HEAD . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
Standard working head pumps . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
High working head pumps . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
2
DIMENSIONAL AND PHYSICAL DATA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
Dimensional data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
Minimum space required for operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40
Position of condensate drain . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40
Rubber vibration-damper installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40
Area of support . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41
Weight during transport . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41
Operation weight . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42
Inspections on arrival . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43
Safety prescriptions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43
Handling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43
Storage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44
Packing removing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44
Positioning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44
HYDRAULIC CONNECTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45
General rules . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45
Protection devices . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45
Tips for a successful installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45
Water component for corrosion limit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46
Precautions for the Winter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46
Basic diagram Standard Unit VB [COLD WATER CIRCUIT] . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47
Basic diagram for units with Desuperheater [HOT WATER CIRCUIT] . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47
Air vent and water drain . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48
Piping connection with Victaulic couplings and Water flow switch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48
Valve regulating diagram valve . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48
MAXIMUM VOLUME OF WATER . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50
Maximum volume of water in the system with wet module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50
ELECTRICAL CONNECTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51
General rules . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51
Structure of the electric panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51
Electrical connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51
R410A PROTECTION DEVICES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54
Refrigerant flow diagram IR VB . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55
Refrigerant flow diagram IP VB . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 56
MAIN CONTROLLER . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 57
Inputs and outputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 57
User interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 59
Display . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60
Menu structure - Main controller . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 61
Alarms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 63
Available function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 66
Parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 72
Configurable inputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 73
Network comunication . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 74
Modbus address table . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 75
ELECTRONIC EXPANSIONE VALVE CONTROL - XVD420 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 76
Inputs and outputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 76
Technical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 76
User interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 78
INVERTER . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 84
Operating setting procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 84
Alarm . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 84
PROBE CHARACTERISTICS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 87
MAINTENANCE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 88
General Rules . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 88
Routine maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 88
General considerations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 90
SAFETY AND POLLUTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 91
Refrigerant safety card . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 91
First aid . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 92
DECLARATION OF CONFORMITY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 94
The manufacturer declines all responsibility for any inaccuracies in this manual due to printing or typing errors.
The manufacturer reserves the right to modify the products contents in this catalogue without previous notice.
3
GENERAL FEATURES
General specifications
• This manual and the wiring diagram supplied with the unit must be kept in a dry place and ready to hand for future consultation
when required.
• This manual has been compiled to ensure that the unit is installed in the correct way and to supply comprehensive information
about how to correctly use and service the appliance. Before proceeding with the installation phase, please carefully read all the
information in this manual, which describes the procedures required to correctly install and use the unit.
• Strictly comply with the instructions in this manual and conform to the current safety standards.
• The appliance must be installed in accordance with the laws in force in the country in which the unit is installed.
• Unauthorized tampering with the electrical and mechanical equipment will VOID THE WARRANTY.
• Check the electrical specifications on the identification plate before making the electrical connections. Read the instructions in the
specific section where the electrical connections are described.
• If the unit must be repaired for any reason, this must only be done by a specialized assistance center recognized by the manufacturer
and using geuine spare parts.
• The manufacturer also declines all liability for any damage to persons or property deriving from failure of the information in this
manual to correspond to the actual unit in your possession.
• Proper uses: this series of chillers is designed to produce cold or hot water for use in hydronic systems for conditioning/
heating purposes. The units are not suitable for the production of domestic hot water.
Any use differing from this proper use or beyond the operating limits indicated in this manual is forbidden unless
previously agreed with the manufacturer.
• The prevention of the risk of fire at the installation site is the responsiblity of the end user.
European Directives
The company hereby declares that the unit in question complies with the matters prescribed by the following Directives:
•Unit Directive2006/42/CE
•
Electromagnetic compatibility Directive (EMC)
2004/108/CE
•
Low voltage Directive (LVD)
2006/95/CE
Any other Directives have to be considered not applicable.
Identification plate of the Unit
The figure on the left depicts the identification plate of the unit, affixed to the outer left-hand side of
the Electric Panel.
A description of the data is given below:
Codice
Code
B1
Rev
Standard versions
A- Trademark
B- Model
B1- Code
C- Serial number
D- Cooling Capacity
E- Heating Capacity
F- Power input in COOLING mode
G- Power input in HEATING mode
H- Reference standard
I- Electric power supply
L- Maximum load current
M- Type of refrigerant and charge
N- Shipping weight of the unit
O- Sound pressure level at 1m
P- IP Level Protection
Q- Maximum pressure - High Side
R- Maximum pressure - Low Side
S- PED certification authority
Ferroli Spa
Via Ritonda 78/A
(VR) Italy
4
Special versions
A- Trademark
B- Model
B1- Code
C- Serial number
D- Cooling Capacity (same as Standard Version of the unit)
E- Heating Capacity
for IR unit, VD version, Recovered Heating Capacity
for IP unit, VD version, Heating Capacity / Recovered Heating Capacity
F- Power input in COOLING mode (same as Standard version of the unit)
G- Power input in HEATING mode
H- Reference standard
I- Electric power supply
L- Maximum load current
M- Type of refrigerant and charge
N- Shipping weight of the unit
O- Sound pressure level at 1m
P- IP Level Protection
Q- Maximum pressure - High Side
R- Maximum pressure - Low Side
S- PED certification authority
NOTE: The identification plate of the Brine Unit (BR - BP) is filled out as
shown in the diagram for the Basic Version of the unit (VB).
GENERAL FEATURES
Presentation of the unit
This series of air-water chillers and heat pumps satisfies the cooling and heating requirements of residential plants of medium size.
All the units are suitable for outdoor installation and can be applied to fan coil plants, radiant floor plants and high efficiency radiators
plants.
The refrigerant circuit, contained in a compartment protected from the air flow to simplify the maintenance operations, is equipped
with scroll compressors mounted on damper supports, brazed plate heat exchanger, electronic expansion valve, reverse cycle valve,
dehydrator filter, axial fans with safety protection grilles, finned coil made of copper pipes and aluminium louvered fins. The circuit is
protected by a safety gas valve, high and low pressure switches and differential pressure switch on the plate heat exchanger. The
plate heat exchanger and all the hydraulic pipes are thermally insulated in order to avoid condensate generation and to reduce thermal losses.
All the units can be equipped with variable speed fans control that allows the units to operate with low outdoor temperatures in cooling
and high outdoor temperature in heating and permits to reduce noise emissions in such operating conditions.
The low noise acoustic setting up (AS) is obtained, starting from the base setting up (AB), reducing the rotational speed of the fans
and mounting sound jackets on the compressors and the technical compartment is clad with soundproofing material of suitable
thickness. The eXtra low noise acoustic setting up (AX) is obtained, starting from the low noise setting up (AS), further reducing the
rotational speed of the fans and using finned coil with bigger surface.
All the units are supplied with a management and control electrical panel containing general switch, phase presence and correct
sequence controller, microprocessor controller with display and all the other electrical components with IP54 minimum protection
degree.
All the units are accurately built and individually tested in the factory. Only electric and hydraulic connections are required for installation.
5
GENERAL FEATURES
Unit identification code
The codes that identify the units and the meaning of the letters used are described below.
RTA IP 245.3 VB AB 0M5
Unit type
IR - Unit suitable for hydronic plant
installation operating as chiller
IP - Unit suitable for hydronic plant
installation operating as reversible heat
pump
BR - Unit suitable for hydronic plant installation with brine solutions operating
as chiller
BP - Unit suitable for hydronic plant installation with brine solutions operating
as reversible heat pump
Unit model
Power supply
5
- 400 V - 3 - 50 Hz
Operating range
M - Medium temperature.
The unit is suitable to be installed in temperate climates.
A - Medium temperature.
The unit is suitable to be installed in tropical climates.
Refrigerant type
0
-R410A
N° compressors
Unit version
VB - Base version
VD-Desuperheaters version
VR-Total recovery version
Acoustic setting up
AB - Base setting up
AS - Low noise setting up
AX - Extra low noise setting up
The available special versions are described below:
VB:
Standard unit.
VD:
Version with Desuperheater (available forboth IR units and IP units)
Produces cold water in the same way as the standard version plus hot water from 30 to 70°C at the same time. This is achieved
by installing a water-refrigerant gas heat exchanger between the compressor and coils in order to recover 25 to 30% of the heating
capacity that would otherwise be dispersed in the air. It helps to remind that hot water production is possible only in combination with
cold-hot water production in the main heat exchanger and it is subordinated by it.
VR: Total Heat Recovery unit
Produces cold water as in the standard version plus hot water at a temperature of 30 to 55°C at the same time. This is achieved
thanks to a water-refrigerant gas heat exchanger that totally recovers the heating capacity that would otherwise be dispersed in the
air. The total heat recovery function is enabled and disabled by means of a valve on the compressor delivery of each circuit: when
the temperature of the water that enters the recuperator drops, the valve switches the hot gas flow from the condensing coils to the
recovery heat exchanger. On the other hand, when the temperature of the water reaches the set-point, the valve shuts off the heat
recuperator and switches the hot gas flow to the condensing coils. It helps to remind that hot water production is possible only in
combination with cold water production in the main heat exchanger and it is subordinated by it.
6
GENERAL FEATURES
Description of the component
1. Fans. Axial type, they are contained in a sheet nozzle and are equipped with a safety grille, scythe-shaped blades increase the
efficiency and reduce the noise level. The fans are directly coupled to the single-phase motor by means of an external rotor. Thermal
protection against operating faults is installed inside the winding. The fans rotational speed can be modulated continuosly by an
analogue device or an inverter (option) to control the condensation pressure (in cooling) and the evaporation pressure (in heating)
in order to extend the operating limits of the unit and to reduce noise emissions. Optionally are available Electronically Commutated
(EC) fans, which ensure maximum energy efficiency at reduced speed of rotation.
2. Electric control and monitoring panel. It contains all the power, control and security components necessary to guarantee the
unit to work properly. The unit is managed by a microprocessor controller to which all the electrical loads and the control devices are
connected. The user interface, placed on the frontal panel, allows to view and to modify, if necessary, all the parameters of the unit.
This is housed in a metal casing in which the various electrical components are positioned on one metal plate.
2a. The power section includes:
• Main door-locking circuit-breaker.
• Fuse-holder that can be isolated with protection fuse triad for each compressor, or thermal magnetic circuit breakers (option).
• Fuse-holder that can be isolated with protection fuse for compressor oil heaters and antifreeze (if installed), or thermal magnetic
circuit breakers (option).
• Control contactor for each compressor or soft starters (option).
• Fuse-holder that can be isolated with protection fuse triad for fans, or thermal magnetic circuit breakers (option).
• Protection fuse for the fans, or thermal magnetic circuit breakers (option).
• Thermal magnetic contactor switch to protect the pump (if the Hydronic Kit is installed).
• Phase presence and sequence monitoring device on power supply, or voltage monitor and sequence meter (accessory).
2b. The auxiliary section includes:
• Fuses on the auxiliary transformer, or thermal magnetic circuit breakers (option).
• Electromagnetic noise filter
• Adjusting fan speed board (option)
• Insulating and safety transformer to power the auxiliary circuit.
2c. The microprocessor monitoring section includes:
MODE
• User interfacing terminal with display.
• On-off key.
• Operating mode selector key.
°C
• Compressor on-off display LED.
• Operational mode LED
• Antifreeze heaters activated indicator LED.
• Fans on-off dislay LED
• Pumps on-off display LED
• Check-control with fault code display
• Defrosting, alarm, economy, stand-by LED.
Control system main functions:
temperature control of the water produced by the unit, compressor and pump operating hour counter, timing and cycling of start-ups,
input parameters by keyboard, alarms management, smart defrosting control and operating mode change (only IP unit), dynamic setpoint (climatic control), scheduling and integrative heaters control.
If you installed the hydronic kit these functions are enabled: antifreeze with pump, start-up cycle after prolonged inactivity (antisticking), if the hydronic kit installed has 2 pumps there is a cycling between each pump to ensure an equivalent lifetime, with inverter
modulating hydronic kit the water flow of the plant can be adjusted.
Digital input functions: low pressure, high pressure, high temperature on compressor supply, phase presence and sequence monitoring device on power supply, differential water pressure control, compressors thermal protection, fans thermal protection, pumps
thermal protection (only if installed MP accessory), ON/OFF and remote operating mode change, demand limit and Economy function,
recovery enabling (only for the VR Version), recovery Pump Thermal Protective (only for the VR Version), recovery differential water
pressure control (only for the VR Version).
Digital output functions: compressor start-up, pump start-up (only with MP accessory), plate heat exchanger electrical heater,
remote general alarm, 4-way valve (only IP unit), integrative heaters and clean contact on compressors start-up, recovery valve management (only for the VR Version), recovery pump management (only for the VR Version).
Analogic input functions: in and out water temperature, coil temperature probe, external air temperature probe (if present), in and
out recovery water temperature (only for the VR Version).
Analogic output functions: continuous adjustment of fans rotating speed (option for AB and standard for AS and AX acoustic setting
up), continuous adjustment of pump rotating speed (only if hydronic kit with modulating pump is installed).
7
GENERAL FEATURES
3. Compressors. They are the SCROLL type with orbiting coil equipped with built-in thermal protection and oil heater (accessory for
IR, as standard for IP). The AS and AX unit includes: a soundproofing jacket for the compressors, to reduce noise level. All units are
equipped with three compressors connected in tandem (66% of the cooling power), or parallel (1 single cooling circuit) which can
operate at the same time (100% cooling power) or individually (33% of the cooling power), thus adapting to the different thermal loads
of the system supplied.
4. Frame, supporting structure and lateral panels are made of galvanized and painted sheet-steel (colour RAL 7035) to guarantee
good resistance to the weather. Accessibility to internal parts is possible removing the frontal panel, for other manteinances also the
lateral panel can be removed.
5. Evaporator made of brazed stainless steel plates (AISI 316). It is installed in a shell of heat-insulating material to prevent the
formation of condensation and heat exchanges towards the outside. Standard supply also includes antifreeze heater a differential
pressure switch on the water circuit to avoid the risk of freezing if the water flow is shut off for some reason.
6. Condensing coils, the aluminium finned pack type with shaped profile to increase the heat exchange coefficient and with copper
pipes arranged in staggered rows.
Hydraulic and cooling circuit components
7.One-way valves (IP/BP unit only), allowing the refrigerant gas to pass into the appropriate exchangers, depending on the operating
cycle.
8. 4-way cycle reversal valve (IP/BP unit only), reverses the flow direction of the refrigerant gas as the summer/winter operating
mode is changed.
9. Fluid valve (accessory). Ball type, this allows the gas flow on the fluid line to be turned on and off. Along with the cock on the compressor delivery, it allows the components of the fluid line to be subjected to extraordinary maintenance work and the compressors to
be replaced if necessary (without discharging the refrigerant gas from the unit).
10. Dehydrator filter. Mechanical type. Retains impurities and traces of moisture in the circuit.
Hermetic type or a cartridge type.
11. Electronic expansion valve supplies the evaporator correctly, keeping the selected overheating degree at a more steady level;
ensures a faster response to load changes and superior stability which translates into increased efficiency at partial loads.
12. Water differential pressure switch. This is standard supply and is installed on the connections between the water inlet and
outlet of the exchanger. It stops the unit if it activates.
13. Electrical heating elements to heat the compressor oil. "Belt" type (accessory for IR, as standard for IP). These activate
when the compressor turns off and keep the temperature of the oil sufficiently high so as to prevent refrigerant gas from migrating
during these pauses.
- Safety valve. Installed on the delivery pipe of the compressors, this operates if extreme faults should occur in the plant.
- Compressor delivery valve (accessory). Ball type, allows the gas delivered to the compressors to be turned on and off.
- Fluid and humidity indicator. Signals when fluid passes through the circuit, indicating that the refrigerant gas charge is correct.
The fluid indicator light also indicates the amount of moisture in the refrigerant gas by changing colour.
- Low pressure switch . With fixed setting. It is installed on the suction pipe and blocks the compressors if the operating pressures
drop below the tolerated values. Automatically resets as the pressure increases. If it activates frequently, the unit will block and can
only be restarted by resetting via the user interface terminal.
- High pressure switch (n°2). With fixed setting. Are is installed on the delivery pipe and blocks the compressors if the operating
pressures exceed the tolerated values. If it activates, the unit will block and can only be restarted by resetting via the user interface
terminal.
- Pressure taps: 1/4 " SAE (7/16" UNF) type with flow regulator. Allow the operating pressure of the system to be measured: compressor delivery, lamination component inlet, compressor intake.
- Pressure taps: 5/16 " SAE type with flow regulator. Allow the charge/discharge of the gas from the system, precisely from compressor outlet an expansion valve inlet.
- Fluid receiver (IP/BP unit only), this is a plenum tank that accounts for variations to the refrigerant gas charge the unit must supply
as the summer/winter operating mode varies.
- Fluid separator (IP/BP unit only), on the compressor intake to protect against possible fluid back-flows.
8
GENERAL FEATURES
6
1
2
9
3C
5
11
3B
12
3A
8
7
20
4
10
Desuperheater unit VD (available for both IR units and IP units)
Hydraulic and chilling circuit components:
- Desuperheater. Specially designed for the specific version. Plate type, made of stainless steel (AISI 316).
It is installed within a shell of thermal barrier insulating material to prevent heat exchanges towards the outside. Standard supply also
includes an electric antifreeze heater to prevent the parts from freezing during the winter, when the system remains at a standstill (if
not drained).
Total Heat Recovery unit VR (only available for IR units)
Hydraulic and cooling circuit components:
- Heat recovery exchanger. Specially designed for the specific version. Plate type, made of stainless steel (AISI 316). It is installed
within a shell of thermal barrier insulating material to prevent heat dispersion towards the outside. Standard supply also includes an
electric antifreeze heater to prevent the parts from freezing during the winter, if is it not drained.
- Differential water pressure switch. Installed on exchanger. It disables the heat recovery version if activated owing to lack of
water flowing through the recovery exchangers.
- Heat recovery management valve. This delivers refrigerant to the condensing coils or heat recovery exchanger, depending on
demands for hot water, and into the appropriate exchangers depending on whether hot water is required or not.
- Fluid receiver. This is a plenum tank that accounts for the refrigerant charge variations required by the unit as the operating modes change (condensing in air or in water).
- One-way valves. Make the refrigerant obligatorily pass through the appropriate heat exchangers (coils / heat exchanger), depending on the operating mode.
9
ACCESSORIES AND OPTIONAL EQUIPMENT
Storing and hydronic kit
"Storing and hydronic kit" options
10
MKT SS
Pipe kit without tank
This accessory consists of steel pipes insulated with thermal barrier material and allows
the water inlet/outlet connection to be routed outside the unit.
M1P SS 2P STD
1 Standard pump
Allows the circulation of the water on the plant side.
M1P SS 2P HP1
1 High head pump
Allows the circulation of the water on the plant side and guarantees a higher available
static head, suitable for high pressure drop plants.
M1PM SS 2P STD
1 Standard modulating pump
Allows the circulation of the water on the plant side with the possibility to set the rotational speed of the pump in order to get the requested flow rate without the necessity to
install other setting devices.
M1PM SS 2P HP1
1 Standard modulating high head pump
Allows the circulation of the water on the plant side, ensuring a higher available static
head, suitable for high pressure drop plants, with the possibility to set the rotational
speed of the pump in order to get the requested flow rate without the necessity to install
other setting devices.
M2P SS 2P STD
2 Standard pumps
Allows the circulation of the water on the plant side and includes a second pump installed as a backup to the first.
M2P SS 2P HP1
2 High head pumps
Allows the circulation of the water on the plant side, ensuring a higher available static
head, suitable for high pressure drop plants, and includes a second pump installed as
a backup to the first.
MKT AM
Pipe kit with tank
This accessory consists of steel pipes insulated with thermal barrier material and allows
the water inlet/outlet connection to be routed outside the unit.
The thermal inertia of the buffer tank allows to reduce the number of compressor starts
and to guarantee a more stable flow temperature.
M1P AM 2P STD
Tank and 1 standard pump
Allows the circulation of the water on the plant side.
The thermal inertia of the buffer tank allows to reduce the number of compressor starts
and to guarantee a more stable flow temperature.
M1P AM 2P HP1
Tank and 1 high head pump
Allows the circulation of the water on the plant side and guarantees a higher available
static head, suitable for high pressure drop plants.
The thermal inertia of the buffer tank allows to reduce the number of compressor starts
and to guarantee a more stable flow temperature.
M1PM AM 2P STD
Tank and 1 modulating standard pump
Allows the circulation of the water on the plant side with the possibility to set the rotational speed of the pump in order to get the requested flow rate without the necessity to
install other setting devices.
The thermal inertia of the buffer tank allows to reduce the number of compressor starts
and to guarantee a more stable flow temperature.
M1PM AM 2P HP1
Tank and 1 modulating high head pump
Allows the circulation of the water on the plant side, ensuring a higher available static
head, suitable for high pressure drop plants, with the possibility to set the rotational
speed of the pump in order to get the requested flow rate without the necessity to install
other setting devices.
The thermal inertia of the buffer tank allows to reduce the number of compressor starts
and to guarantee a more stable flow temperature.
M2P AM 2P STD
Tank and 2 standard pumps
Allows the circulation of the water on the plant side and includes a second pump installed as a backup to the first.
The thermal inertia of the buffer tank allows to reduce the number of compressor starts
and to guarantee a more stable flow temperature.
M2P AM 2P HP1
Tank and 2 high head pumps
Allows the circulation of the water on the plant side, ensuring a higher available static
head, suitable for high pressure drop plants, and includes a second pump installed as
a backup to the first.
The thermal inertia of the buffer tank allows to reduce the number of compressor starts
and to guarantee a more stable flow temperature.
M1P PS 2P STD
Tank and 1 standard pump
(primary and secondary configuration)
Allows the circulation of the water on the primary between the tank and the heat exchanger.
The thermal inertia of the buffer tank allows to reduce the number of compressor starts
and to guarantee a more stable flow temperature.
M2P PS 2P STD
Tank and 2 standard pumps
(primary and secondary configuration)
Allows the circulation of the water on the primary between the tank and the heat exchanger and includes a second pump installed as a backup to the first.
The thermal inertia of the buffer tank allows to reduce the number of compressor starts
and to guarantee a more stable flow temperature.
ACCESSORIES AND OPTIONAL EQUIPMENT
MODULO KIT TUBI CON
With tank
SERBATOIO
Without tank
Pipe kit with tank
Pipe kit without tank
VS
M
SF
SF
AV
AV
OUT
OUT
S
SA
SP
SP
SA
AV
AV
IN
IN
SA
SA
Tank and standard pump
StandardLEGENDA
pump without tank
LEGENDA
VE
ID
DESCRIZIONE
DESCRIPTION
AV
ATTACCHI VICTAULIC
VICTAULIC CONNECTIONS
ID
DESCRIZIONE
SA
VALVOLA SCARICO ACQUA
DRAIN WATER VALVE
ATTACCHI VICTAULIC
VALVOLA SFIATO ARIA
M
AIR VENT VALVE
AV
SF
M
MANOMETRO
SP
SCAMBIATORE A PIASTRE
PLATER HEAT EXCHANGER
S
SERBATOIO
SF
VS
AV
OUT
SP
VU
P
M
VICTAULIC CONNECTIONS
SF
TANK
SA
VALVOLA SCARICO ACQUA
SF
VALVOLA SFIATO ARIA
SP
SCAMBIATORE A PIASTRE
VS
VALVOLA DI SICUREZZA
SP
SF
RA
RM
DESCRIPTION
VS
GAUGE
DRAIN WATER VALVE
AIR VENT VALVE
AV
PLATER HEAT EXCHANGER
S
OUT
SAFETY VALVE
P
VU
RA
RM
IN
SA
IN
AV
F
VU
SA
P
= Componenti presenti solo nei moduli di pompaggio a 2 pompe
ITEM
AV
F
M
P
RA
RM
S
SA
SF
SP
VE
VS
VU
DESCRIPTION
Schema idraulico
AV
F
M
P
RA
RM
SA
SF
SP
VS
VU
VICTAULIC CONNECTIONS
LEGENDA
Kit Tubi
senza Accumulo
FILTER
DESCRIPTION
ATTACCHI VICTAULIC
VICTAULIC CONNECTIONS
RTA
245.3÷315.3
GAUGE
FILTRO
FILTER
MANOMETRO
GAUGE
PUMP
POMPA
PUMP
BALL VALVE
RUBINETTO DI SUCTION
ASPIRAZIONE
SUCTION BALL VALVE
RUBINETTO DI MANDATA
DISCHARGE BALL VALVE
DISCHARGE BALL VALVE
VALVOLA SCARICO ACQUA
DRAIN WATER VALVE
VALVOLA SFIATO ARIA
AIR VENT VALVE
TANK
SCAMBIATORE A PIASTRE
PLATER HEAT EXCHANGER
DRAIN WATER VALVE
VALVOLA DI SICUREZZA
SAFETY VALVE
VALVOLA UNIDIREZIONALE
AIR VENT VALVECHECK VALVE
HEAT EXCHANGER
EXPANSION VESSEL
SAFETY VALVE
CHECK VALVE
VU
P
= Componenti presenti solo nei moduli di pompaggio a 2 pompe
Tank and standard
pump
(primary
and kit
secondary
= Components
present
only in hydronic
with 2 pumps configuration)
= Components present only in hydronic kit with 2 pumps
ID
AV
F
DESCRIZIONE
only in case
of 2 pumps
ID
DESCRIZIONE
AV
ATTACCHI VICTAULIC
F
M
FILTRO
M
MANOMETRO
P
POMPA
DESCRIPTION
VICTAULIC CONNECTIONS
FILTER
GAUGE
RUBINETTO DI ASPIRAZIONE
RM
RUBINETTO DI MANDATA
SUCTION BALL VALVE
S
DISCHARGE BALL VALVE
SERBATOIO
TANK
SA
VALVOLA SCARICO ACQUA
SF
VALVOLA SFIATO ARIA
SP
SCAMBIATORE A PIASTRE
VS
VASO SF
DI ESPANSIONE
RM
VALVOLA DI SICUREZZA
VU
VALVOLA UNIDIREZIONALE
VE
OUT
PUMP
RA
S
SP
SF
VE LEGENDA
Schema
idraulico
Kit Tubi con
VS AccumuloAV
RTA 245.3÷315.3
DRAIN WATER VALVE
VU
P
AIR VENT VALVE
IN
AV
PLATER HEAT EXCHANGER
EXPANSION TANK
SAFETY VALVE
CHECK VALVE
F
SA
VU
P
= Componenti presenti solo nei moduli di pompaggio a 2 pompe
Options
= Components present only in hydronic kit with 2 pumps
LEGENDA
Schema idraulico
Schema
idraulico
Reduces the compressor start current of about 40%.
M(1-2)P senza Accumulo
M(1-2)P con Accumulo
current and the power supply voltage
RTA 245.3÷315.3 Allows to reduce the phase shift between the absorbedRTA
Compressor power factor correction
245.3÷315.3
Soft starter
ID
DESCRIZIONE
DESCRIPTION
AV
ATTACCHI VICTAULIC
VICTAULIC CONNECTIONS
F
FILTRO
FILTER
M
MANOMETRO
GAUGE
POMPA
PUMP
keeping it above the value of 0,91.P
Fans control
Electrical
protecion load
Drain pan kit
On-off
SUCTION BALL VALVE
(standard for AB unit) the condensation
pressure (in cooling) and
the evaporation pressure (in
RM
RUBINETTO DI MANDATA
DISCHARGE BALL VALVE
S
SERBATOIO
TANK
heating) is regulated by on-off cycles.
SA
VALVOLA SCARICO ACQUA
DRAIN WATER VALVE
Modulating control
(condensation /
evaporation control)
(standard for AS and AX unit, optional
for ABAunit)
speed can be modulated
SP
SCAMBIATORE
PIASTRE The fans rotational
PLATER HEAT EXCHANGER
VE
VASO DI ESPANSIONE
EXPANSION TANK
continuosly by an adjusting fan speed
device to control the condensation
pressure (in cooling)
VS
VALVOLA DI SICUREZZA
SAFETY VALVE
VU
VALVOLA UNIDIREZIONALE
CHECK
VALVE
and the evaporation pressure (in heating)
in order to extend the
operating
limits of the unit, to
reduce noise emissions and improve energy efficiency.
Modulating control
(condensation /
evaporation control)
with EC fans
(optional for AB, AS and AX unit) The fans rotational speed can be modulated continuosly by
EC fans (Electronic Commutation) to control the condensation pressure (in cooling) and the
evaporation pressure (in heating) in order to extend the operating limits of the unit, to reduce
noise emissions and maximize energy efficiency.
Fuses
Allows to protect the electrical loads with fuses.
Thermal magnetic
Allows to protect the electrical loads with thermal magnetic circuit breakers simplifying the
Schema idraulico P+S
maintenance and reload operations.
RA
RUBINETTO DI ASPIRAZIONE
SF
VALVOLA SFIATO ARIA
AIR VENT VALVE
M(1-2)P con Accumulo
Provides a pan under the coil to drain the condensing water, fitted with 1/2" outlet connection
RTA 245.3÷315.3
positioned opposite to the electric control panel.
11
ACCESSORIES AND OPTIONAL EQUIPMENT
Accessories
Supplied accessories
Rubber vibration
dampers
Allow to reduce the transmission to the unit support plane of the mechanical vibrations generated by the compressor and
by the fans in their normal operating mode, the degree of isolation is about 85%
Spring vibration
dampers
Allow to reduce the transmission to the unit support plane of the mechanical vibrations generated by the compressor and
by the fans in their normal operating mode, the degree of isolation is about 90%
Water paddle flow
switch
Allows to detect the water flow lack through the plate heat exchanger and operates as an integration of the protecion
offered by the differential pressure switch (standard).
Tank antifreeze
electrical heater
Activated together with the antifreeze electrical heater of the plate heat exchanger, it has the task to keep the still water
in the buffer tank at a temperature high enough to avoid ice generation during winter.
Remote control
It is suitable for wall mounting and reports all the control and visualization functions available on the user interface
placed on the unit. It therefore allows the complete remote control of the unit.
Programmer clock
It allows the unit to be turned on and off according to a set program, through the digital input available on the unit wiring
board (remote stand by).
Modbus serial
interface
on RS485
It allows to communicate with the unit controller and to view the operating conditions of the unit through Modbus communication protocol. The RS485 serial line ensures the signal quality up to distances of about 1200 meters (that can be
extended by means of proper repeaters).
Phase sequence and
voltage controller
It checks not only the presence and correct order of the power supply phases but also the voltage level on each phase
and avoid the unit to operate with voltage levels outside the permitted limits.
Victaulic connections
This accessory consists of steel pipes that allows the water inlet/outlet to be connected straight inside the unit.
Factory mounted accessories
Coil protection grilles
Protects the external surface of the finned coil.
High and low pressure gauges
2 pressure gauges allow visualization of high and low refrigerant gas pressure.
Coil shut off valves
It consists of two ball valves installed before and after the coil that allow for the pump-down maintenance.
Outdoor air sensor
External air probe mounted near coil allows smart defrosting, climatic variation of setpoint and
reducing the external air temperature below a setpoint.
High temperature
thermostat
Two thermostats in series on compressors outlet pipes preserve operation not allowing temperature to rise up than a
specified non adjustable value.
Low temperature kit
(di serie per unità IP e BP, optional per unità IR e BR) sono costituite da resistenze carter di riscaldamento olio compressori.
Tank antifreeze
electrical heater
Activated together with the antifreeze electrical heater of the plate heat exchanger, it has the task to keep the still water
in the buffer tank at a temperature high enough to avoid ice generation during winter.
Modbus serial
interface
on RS485
It allows to communicate with the unit controller and to view the operating conditions of the unit through Modbus communication protocol. The RS485 serial line ensures the signal quality up to distances of about 1200 meters (that can be
extended by means of proper repeaters).
Phase sequence and
voltage controller
It checks not only the presence and correct order of the power supply phases but also the voltage level on each phase
and avoid the unit to operate with voltage levels outside the permitted limits.
Pressure transducer
It consists of a transducer, which allows operation of the control condensation, evaporation and defrost by reading the
pressure.
Cardboard corners
enables heat pump stop
Comprised of 4 cardboard corners to further protect the edges of the unit for safer handling
Mechanical options
Electrical options
For finned coils with special treatment (copper fins, tin-copper plated,
acrylic, epoxy or hydrophilic painting) please contact our technical department.
For other voltages, please contact our technical department
12
TECHNICAL DATA AND PERFORMANCE - BASE VERSION (VB)
Technical data
Frame
Model
Power supply
Refrigerant
Type
Refrigerant circuit
Quantity
Compressor
Type
Quantity
Power steps
Oil charge CP1A
Oil charge CP1B
Oil charge CP1B
Plant side heat exchanger
Type
Quantity
Water volume
Source side heat exchanger
Type
Quantity
Frontal surface
Fans
Type
Quantity
Diameter
Nominal rotational speed
AB
Nominal air flow rate
AB
Nominal rotational speed
AS
Nominal air flow rate
AS
Nominal rotational speed
AX
Nominal air flow rate
AX
Plant side hydraulic circuit
Expansion vessel volume
Expansion vessel precharge
Expansion vessel maximum pressure
Tank volume
Safety valve set
Units with primary-secondary pump (option)
Type
F.L.A. Maximum total current input
F.L.I. Maximum total power input
Units with standard pump (option)
Type
F.L.A. Maximum total current input
F.L.I. Maximum total power input
245.3
1
280.3
315.3
U.M.
400 - 3 - 50
V-ph-Hz
R410A
-
1
-
5.3
5.3
5.3
scroll
3
0/33/67/100
5.3
5.3
5.3
5.3
5.3
5.3
n°
%
l
l
l
11.2
Brazed plates
1
12.8
16.1
n°
l
Finned coil
1
9,28
n°
m2
assiale
4
5
800
900
87066
103650
99700
750
72555
86375
83083
600
5.76
7.2
7.2
24
150
800
460
600
n°
mm
rpm
m3/h
rpm
m3/h
rpm
m3/h
l
kPa
kPa
l
kPa
208
126
Centrifugal pump
240
142
256
153
A
kW
208
126
Centrifugal pump
240
142
258
154
A
kW
13
TECHNICAL DATA AND PERFORMANCE - BASE VERSION (VB)
NET NOMINAL performances - Base setting up (AB) - Standard plants - EUROVENT certified data
Model
245.3
Cooling A35W7 ( source : air in 35°C d.b. / plant : water in 12°C out 7°C )
IR
Cooling capacity
Power input
EER
ESEER
Water flow rate plant side
Pressure drops plant side
235
87.3
2.69
3.86
11.3
54
280.3
315.3
U.M.
277
104.0
2.66
3.85
13.4
60
299
111.0
2.69
3.89
14.4
53
kW
Cooling A35W7 ( source : air in 35°C d.b. / plant : water in 12°C out 7°C )
Cooling capacity
226
268
Power input
85.3
101.1
EER
2.65
2.65
ESEER
3.76
3.76
Water flow rate plant side
10.9
12.9
Pressure drops plant side
50
56
Heating A7W45 ( source : air in 7°C d.b. 6°C w.b. / plant : water in 40°C out 45°C )
Heating capacity
252
300
IP Power input
86.4
102.3
COP
2.92
2.93
Water flow rate plant side
11.9
14.2
Pressure drops plant side
60
67
Data declared
EN 14511.
values
to units
without
options
Heatingaccording
A2W45 to
( source
: air in The
2°C d.b.
1°Care
w.b.referred
/ plant : water
in 40°C
out 45°C
) and accessories.
Heating capacity
213
252
Power input
86.4
NET NOMINAL
performances - Base setting up73.9
(AB) - Standard plants
COP
2.57
2.57
Water flowModel
rate plant side
11.2
13.3
245.3
280.3
Pressure drops plant side
53
59
Heating A2W45 ( source : air in 2°C d.b. 1°C w.b. / plant : water in 40°C out 45°C )
Dati
dichiarati
secondo
EN
14511.
I
valori
si
riferiscono
ad
unità
prive
di
eventuali
opzioni
accessori.
Data declared
according to EN 14511. The values 213
are referred to units without options
ando accessories.
Heating capacity
252
Power input
73.9
86.4
IP
COP
2.57
2.57
Water flow rate plant side
11.2
13.3
Pressure drops plant side
53
59
Data declared according to EN 14511. The values are referred to units without options and accessories.
EER (Energy Efficiency Ratio) = ratio of the total cooling capacity to the effective power input of the unit
ESEER (European Seasonal Energy Efficiency Ratio)
COP (Coefficient Of Performance) = ratio of the total heating capacity to the effective power input of the unit
HRE (Heat Recovery Efficiency) = ratio of the total capacity of the system (heating plus cooling capacity) to the effectice power input
14
289
108.0
2.68
3.80
13.9
49
319
109
2.93
15.1
58
270
93.3
2.57
14.2
315.3
52
270
93.3
2.57
14.2
52
kW
W/W
W/W
l/s
kPa
kW
kW
W/W
W/W
l/s
kPa
kW
kW
W/W
l/s
kPa
kW
kW
W/W
l/s
U.M.
kPa
kW
kW
W/W
l/s
kPa
TECHNICAL DATA AND PERFORMANCE - BASE VERSION (VB)
NET NOMINAL performances - Base setting up (AB) - Radiant plants
Model
245.3
280.3
Cooling A35W18 ( source : air in 35°C d.b. / plant : water in 23°C out 18°C )
IR
Cooling capacity
Power input
EER
Water flow rate plant side
Pressure drops plant side
299
94.3
3.17
14.5
89
353
112
3.15
17.1
98
Cooling A35W18 ( source : air in 35°C d.b. / plant : water in 23°C out 18°C )
IP
Cooling capacity
288
341
Power input
91.9
109
EER
3.13
3.13
Water flow rate plant side
13.9
16.5
Pressure drops plant side
82
91
Heating A7W35 ( source : air in 7°C d.b. 6°C w.b. / plant : water in 30°C out 35°C )
Heating capacity
255
302
Power input
69.8
82.6
COP
3.65
3.66
Water flow rate plant side
12.0
14.3
Pressure drops plant side
61
68
Heating A2W35 ( source : air in 2°C d.b. 1°C w.b. / plant : water in 30°C out 35°C )
Heating capacity
215
256
Power input
69.0
81.6
COP
3.12
3.14
Water flow rate plant side
11.3
13.4
Pressure drops plant side
54
60
315.3
U.M.
381
119
3.20
18.5
87
kW
368
116
3.17
17.8
81
323
88.0
3.67
15.3
60
273
87.0
3.14
14.4
53
kW
W/W
l/s
kPa
kW
kW
W/W
l/s
kPa
kW
kW
W/W
l/s
kPa
kW
kW
W/W
l/s
kPa
Data declared according to EN 14511. The values are referred to units without options and accessories.
EER (Energy Efficiency Ratio) = ratio of the total cooling capacity to the effective power input of the unit
ESEER (European Seasonal Energy Efficiency Ratio)
COP (Coefficient Of Performance) = ratio of the total heating capacity to the effective power input of the unit
HRE (Heat Recovery Efficiency) = ratio of the total capacity of the system (heating plus cooling capacity) to the effectice power input
15
TECHNICAL DATA AND PERFORMANCE - BASE VERSION (VB)
NET NOMINAL performances - Low noise setting up (AS) - Standard plants - EUROVENT certified data
Model
IR
245.3
Cooling A35W7 ( source : air in 35°C d.b. / plant : water in 12°C out 7°C )
Cooling capacity
228
Power input
92.0
EER
2.48
ESEER
3.71
Water flow rate plant side
11.0
Pressure drops plant side
51
280.3
315.3
U.M.
270
109
2.48
3.74
13.0
57
291
116
2.51
3.74
14.0
50
kW
Cooling A35W7 ( source : air in 35°C d.b. / plant : water in 12°C out 7°C )
Cooling capacity
219
260
Power input
90.0
106
EER
2.43
2.45
ESEER
3.60
3.61
Water flow rate plant side
10.6
12.5
Pressure drops plant side
47
52
Heating A7W45 ( source : air in 7°C d.b. 6°C w.b. / plant : water in 40°C out 45°C )
Heating capacity
242
288
IP Power input
81.6
96.9
COP
2.97
2.97
Water flow rate plant side
11.5
13.6
Pressure drops plant side
56
62
Heatingaccording
A2W45 to
( source
: air in The
2°C d.b.
1°Care
w.b.referred
/ plant : water
in 40°C
out 45°C
) and accessories.
Data declared
EN 14511.
values
to units
without
options
Heating capacity
213
252
Power input
73.9
86.4
NET NOMINAL performances - Low noise setting up (AS) - Standard plants
COP
2.60
2.60
Water flowModel
rate plant side
11.2
13.3
245.3
280.3
Pressure drops plant side
53
59
Heating A2W45 ( source : air in 2°C d.b. 1°C w.b. / plant : water in 40°C out 45°C )
Datadichiarati
declared
accordingEN
to 14511.
EN 14511.
Thesivalues
are referred
unitsdiwithout
options
ando accessories.
Dati
I valori
riferiscono
ad unitàtoprive
eventuali
accessori.
Heating secondo
capacity
213
252opzioni
Power input
73.9
86.4
IP
COP
2.60
2.60
Water flow rate plant side
11.2
13.3
Pressure drops plant side
53
59
Data declared according to EN 14511. The values are referred to units without options and accessories.
EER (Energy Efficiency Ratio) = ratio of the total cooling capacity to the effective power input of the unit
ESEER (European Seasonal Energy Efficiency Ratio)
COP (Coefficient Of Performance) = ratio of the total heating capacity to the effective power input of the unit
HRE (Heat Recovery Efficiency) = ratio of the total capacity of the system (heating plus cooling capacity) to the effectice power input
16
280
113
2.48
3.64
13.5
47
306
103
2.97
14.5
54
270
93.3
2.60
14.2
315.3
52
270
93.3
2.60
14.2
52
kW
W/W
W/W
l/s
kPa
kW
kW
W/W
W/W
l/s
kPa
kW
kW
W/W
l/s
kPa
kW
kW
W/W
l/s
U.M.
kPa
kW
kW
W/W
l/s
kPa
TECHNICAL DATA AND PERFORMANCE - BASE VERSION (VB)
NET NOMINAL performances - Low noise setting up (AS) - Radiant plants
Model
IR
IP
245.3
280.3
315.3
U.M.
Cooling A35W18 ( source : air in 35°C d.b. / plant : water in 23°C out 18°C )
Cooling capacity
290
343
Power input
99.5
117
EER
2.93
2.93
Water flow rate plant side
14.1
16.6
Pressure drops plant side
84
92
370
125
2.96
17.9
82
kW
Cooling A35W18 ( source : air in 35°C d.b. / plant : water in 23°C out 18°C )
Cooling capacity
279
331
Power input
96.9
114
EER
2.88
2.90
Water flow rate plant side
13.5
16.0
Pressure drops plant side
77
86
Heating A7W35 ( source : air in 7°C d.b. 6°C w.b. / plant : water in 30°C out 35°C )
Heating capacity
244
289
Power input
66.1
78.1
COP
3.70
3.71
Water flow rate plant side
11.6
13.7
Pressure drops plant side
57
63
Heating A2W35 ( source : air in 2°C d.b. 1°C w.b. / plant : water in 30°C out 35°C )
Heating capacity
215
256
Power input
68.3
80.7
COP
3.16
3.16
Water flow rate plant side
11.3
13.4
Pressure drops plant side
54
60
357
122
2.93
17.2
76
310
82.8
3.73
14.7
55
273
86.1
3.17
14.4
53
kW
W/W
l/s
kPa
kW
kW
W/W
l/s
kPa
kW
kW
W/W
l/s
kPa
kW
kW
W/W
l/s
kPa
Data declared according to EN 14511. The values are referred to units without options and accessories.
EER (Energy Efficiency Ratio) = ratio of the total cooling capacity to the effective power input of the unit
ESEER (European Seasonal Energy Efficiency Ratio)
COP (Coefficient Of Performance) = ratio of the total heating capacity to the effective power input of the unit
HRE (Heat Recovery Efficiency) = ratio of the total capacity of the system (heating plus cooling capacity) to the effectice power input
17
TECHNICAL DATA AND PERFORMANCE - BASE VERSION (VB)
NET NOMINAL performances - Exta low noise setting up (AX) - Standard plants - EUROVENT certified data
Model
IR
245.3
Cooling A35W7 ( source : air in 35°C d.b. / plant : water in 12°C out 7°C )
Cooling capacity
223
Power input
94.0
EER
2.37
ESEER
3.78
Water flow rate plant side
10.8
Pressure drops plant side
49
280.3
315.3
U.M.
264
111
2.38
3.77
12.7
54
285
118
2.42
3.83
13.7
48
kW
Cooling A35W7 ( source : air in 35°C d.b. / plant : water in 12°C out 7°C )
Cooling capacity
215
255
Power input
92.0
108
EER
2.34
2.36
ESEER
3.69
3.71
Water flow rate plant side
10.4
12.3
Pressure drops plant side
46
51
Heating A7W45 ( source : air in 7°C d.b. 6°C w.b. / plant : water in 40°C out 45°C )
Heating capacity
240
285
IP Power input
79
94
COP
3.04
3.03
Water flow rate plant side
11.4
13.5
Pressure drops plant side
55
61
Data declared
EN 14511.
values
to units
without
options
Heatingaccording
A2W45 to
( source
: air in The
2°C d.b.
1°Care
w.b.referred
/ plant : water
in 40°C
out 45°C
) and accessories.
Heating capacity
219
260
Power
input
71.7
83.8
NET NOMINAL performances - Exta low noise setting up (AX) - Standard plants
COP
80
94
Water flowModel
rate plant side
11.5
13.7
245.3
280.3
Pressure drops plant side
56
63
Heating A2W45 ( source : air in 2°C d.b. 1°C w.b. / plant : water in 40°C out 45°C )
Dati
dichiarati
secondo
EN
14511.
I
valori
si
riferiscono
ad
unità
prive
di
eventuali
opzioni
accessori.
Data declared
according to EN 14511. The values 219
are referred to units without options
ando accessories.
Heating capacity
260
Power input
71.7
83.8
IP
COP
80
94
Water flow rate plant side
11.5
13.7
Pressure drops plant side
56
63
Data declared according to EN 14511. The values are referred to units without options and accessories.
EER (Energy Efficiency Ratio) = ratio of the total cooling capacity to the effective power input of the unit
ESEER (European Seasonal Energy Efficiency Ratio)
COP (Coefficient Of Performance) = ratio of the total heating capacity to the effective power input of the unit
HRE (Heat Recovery Efficiency) = ratio of the total capacity of the system (heating plus cooling capacity) to the effectice power input
18
274
116
2.36
3.71
13.2
45
302
100
3.02
14.3
52
278
90.5
100
14.6
315.3
54
278
90.5
100
14.6
54
kW
W/W
W/W
l/s
kPa
kW
kW
W/W
W/W
l/s
kPa
kW
kW
W/W
l/s
kPa
kW
kW
W/W
l/s
U.M.
kPa
kW
kW
W/W
l/s
kPa
TECHNICAL DATA AND PERFORMANCE - BASE VERSION (VB)
NET NOMINAL performances - Extra low noise setting up (AX) - Radiant plants
Model
IR
IP
245.3
280.3
315.3
U.M.
Cooling A35W18 ( source : air in 35°C d.b. / plant : water in 23°C out 18°C )
Cooling capacity
284
336
Power input
101
120
EER
2.81
2.80
Water flow rate plant side
13.8
16.3
Pressure drops plant side
80
89
363
127
2.86
17.6
79
kW
Cooling A35W18 ( source : air in 35°C d.b. / plant : water in 23°C out 18°C )
Cooling capacity
274
325
Power input
98.1
116
EER
2.80
2.80
Water flow rate plant side
13.3
15.7
Pressure drops plant side
75
82
Heating A7W35 ( source : air in 7°C d.b. 6°C w.b. / plant : water in 30°C out 35°C )
Heating capacity
242
286
Power input
63.7
75.5
COP
3.78
3.81
Water flow rate plant side
11.5
13.5
Pressure drops plant side
56
61
Heating A2W35 ( source : air in 2°C d.b. 1°C w.b. / plant : water in 30°C out 35°C )
Heating capacity
222
263
Power input
66.0
78.0
COP
3.36
3.37
Water flow rate plant side
11.7
13.8
Pressure drops plant side
58
64
349
125
2.79
16.9
73
306
80.2
3.83
14.5
54
282
83.2
3.40
14.8
56
kW
W/W
l/s
kPa
kW
kW
W/W
l/s
kPa
kW
kW
W/W
l/s
kPa
kW
kW
W/W
l/s
kPa
Data declared according to EN 14511. The values are referred to units without options and accessories.
EER (Energy Efficiency Ratio) = ratio of the total cooling capacity to the effective power input of the unit
ESEER (European Seasonal Energy Efficiency Ratio)
COP (Coefficient Of Performance) = ratio of the total heating capacity to the effective power input of the unit
HRE (Heat Recovery Efficiency) = ratio of the total capacity of the system (heating plus cooling capacity) to the effectice power input
19
TECHNICAL DATA AND PERFORMANCE - BASE VERSION (VB)
COOLING performances
The graphs allow to get the corrective factors to be applied to the nominal performances in order to obtain the real performances in
the selected operating conditions. For the "Operation limits" of the unit refer to the section limits.
The reference nominal condition is: A35W7 (source : air in 35°C d.b. / plant : water in 12°C out 7°C)
Cooling capacity
Potenza frigo
1.6
1.5
E
F
1.4
D
A
B
C
Outlet air temperature (°C D.B.)
A = 20°C
B = 25°C
C = 30°C
D = 35°C
E = 40°C
F = 45°C
1.3
20
25
1.2
30
35
1.1
40
45
A35W7
1.0
50
0.9
0.8
0.7
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
Outlet water temperature [°C]
Total power input
Outlet air temperature (°C D.B.)
A = 20°C
Pot ass TOTALE in raffreddamen
B = 25°C
1.4
1.3
F
E
D
C
C = 30°C
A
B
D = 35°C
E = 40°C
F = 45°C
1.2
20
25
30
35
1.1
40
45
50
A35W7
1.0
0.9
0.8
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
Outlet water temperature [°C]
The standard performances refer to a 5°C temperature difference between the water entering and leaving the heat exchanger and to operation of the unit with all fans at
nominal or maximum speed. A 0.44 x 10-4 m2 K/W fouling factor has also been considered with the unit installed at zero meters above sea level (Pb = 1013mbar).
20
TECHNICAL DATA AND PERFORMANCE - BASE VERSION (VB)
HEATING performances
The graphs allow to get the corrective factors to be applied to the nominal performances in order to obtain the real performances in
the selected operating conditions. For the "Operation limits" of the unit refer to the section limits.
The reference nominal condition is: A7W45 (source : air in 7°C d.b. 6°C w.b. / plant : water in 40°C out 45°C)
Heating capacity
Potenza termica
Outlet air temperature (°C D.B. / W.B.)
A = -5,5 / -6°C
-6
1.3
B = -1,3
/ -2°C
-2
A
B
C
D
E
F
C = 2,8
2 / 2°C
G
1.2
D = 7 /6 6°C
9
E = 10,1
/ 9°C
12
F = 13,2 / 12°C
15
G = 16,4 /15°C
1.1
A7W45
1.0
0.9
0.8
0.7
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
Outlet water temperature [°C]
Pot Ass TOTALE in riscaldamen
Total power input
Outlet air temperature (°C D.B. / W.B.)
A = -5,5 / -6°C
1.3
B = -1,3 / -2°C
C = 2,8 / 2°C
1.2
1.1
B
A
1.0
D
C
F
E
G
D = 7 / 6°C
E = 10,1 / 9°C
F = 13,2 / 12°C
G = 16,4 /15°C
-6
-2
2
6
9
A7W45
12
15
0.9
0.8
0.7
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
Outlet water temperature [°C]
The standard performances refer to a 5°C temperature difference between the water entering and leaving the heat exchanger and to operation of the unit with all fans at
nominal or maximum speed. A 0.44 x 10-4 m2 K/W fouling factor has also been considered with the unit installed at zero meters above sea level (Pb = 1013mbar).
NOTE For air temperatures of less than 7°C, the heating capacity is declared without considering the effect of the defrosting, strictly correlated with the humidity in the
outdoor air.
21
TECHNICAL DATA AND PERFORMANCE - BASE VERSION (VB)
Correction factor for the use of glycol in heating mode
ETHYLENE GLYCOL with water produced between 30 ÷ 55 º C.
Percentage Of glycol in mass / volume
0/0
10 / 8,9
20 / 18,1
30 / 27,7
40 / 37,5
0
-3,2
-8
-14
-22
CCPT - Heating capacity
1,000
0,995
0,985
0,975
0,970
CCPA - Power input
1,000
1,010
1,015
1,020
1,030
CCQA - Water flow rate
1,000
1,038
1,062
1,091
1,127
CCDP - Water pressure drop
1,000
1,026
1,051
1,077
1,103
0/0
10 / 9,6
20 / 19,4
30 / 29,4
40 / 39,6
0
-3,3
-7
-13
-21
CCPT - Heating capacity
1,000
0,990
0,975
0,965
0,955
CCPA - Power input
1,000
1,010
1,020
1,030
1,040
CCQA - Water flow rate
1,000
1,018
1,032
1,053
1,082
CCDP - Water pressure drop
1,000
1,026
1,051
1,077
1,103
Freezing point [°C]
PROPYLENE GLYCOL with water produced between 30 ÷ 55ºC.
Percentage Of glycol in mass / volume
Freezing point [°C]
Based on DESIGN CONDITIONS extract Heating Capacity (kWtr).
Based on type and percentage of glycol extract CCPT, CCQA, CCDP.
Then calculate.
Pt_brine = kWtr x CCPT
Pass_CP_brine = kWa x CCPA
Then calculate brine flow rate to the heat recovery exchanger:
Q_brine [l/s]=CCQA x (Pt_brine [kW]*0.86/∆T_brine)/3.6
where ΔT_brine is the temperature difference outlet-intlet heat recovery exchanger:
∆T_brine=Twout_brine-Twin_brine
With this brine flow rate enter in abscissa on the water pressure drop of the heat recovery then you have Dp_app.
Finally you can calculate the actual pressure drop of the brine on heat recovery:
Dp_brine =CCDP x Dp_app
22
TECHNICAL DATA AND PERFORMANCE - BASE VERSION (VB)
Correction factor for the use of glycol in cooling mode
ETHYLENE GLYCOL with water produced between 5 ÷ 20 º C.
Percentage Of glycol in mass / volume
0/0
10 / 8,9
20 / 18,1
30 / 27,7
40 / 37,5
0
-3,2
-8
-14
-22
CCPF - Cooling capacity
1,00
0,99
0,98
0,97
0,95
CCPA - Power input
1,00
1,00
0,99
0,99
0,98
CCQA - Water flow rate
1,00
1,04
1,08
1,12
1,16
CCDP - Water pressure drop
1,00
1,08
1,16
1,25
1,35
10 / 9,6
20 / 19,4
30 / 29,4
40 / 39,6
Freezing point [°C]
PROPYLENE GLYCOL with water produced between 5 ÷ 20 º C.
Percentage Of glycol in mass / volume
0/0
Freezing point [°C]
0
-3,3
-7
-13
-21
CCPF - Cooling capacity
1,00
0,98
0,96
0,94
0,92
CCPA - Power input
1,00
0,99
0,98
0,95
0,93
CCQA - Water flow rate
1,00
1,01
1,03
1,06
1,09
CCDP - Water pressure drop
1,00
1,05
1,11
1,22
1,38
Based on outdoor air temperature and leaving water temperature of the evaporator (DESIGN CONDITIONS) extract Cooling
Capacity (kWf) and Compressors Power Input (kWa).
Based on type and percentage of glycol extract CCPF, CCPA, CCQA, CCDP.
Then calculate.
Pf_brine = kWf x CCPF
Pass_CP_brine = kWa x CCPA
Then calculate brine flow rate of the evaporator:
Q_brine_evap [l/s]=CCQA x (Pf_brine [kW]*0.86/ΔT_brine)/3.6
where ΔT_brine is the difference inlet-outlet evaporator water temperature:
ΔT_brine=Twin_evap_brine-Twout_evap_brine
With this brine flow rate enter in abscissa on the water pressure drop of the evaporator then you have Dp_app.
Finally you can calculate the actual pressure drop of the brine on evaporator side:
Dp_evap_brine =CCDP x Dp_app
Fouling factors
The performances supplied with the tables are referred to a fouling factory = 0.44x10-4 m² K/W . For different values of the fouling
factory, use the reduction coefficients reported in the following table.
Fouling factory
(m² K / W)
(m² K / W)
(m² K / W)
0,44 x 10-4
0,86 x 10-4
1,72 x 10-4
F.c. PF
1,00
0,98
0,93
Evaporator
F.c. PA
1,00
0,99
0,98
F.c. PF: Correction Factor for Cooling capacity
F.c. PA: Correction Factor for compressor power Input
23
TECHNICAL DATA AND PERFORMANCE - DESUPERHEATER VERSION (VD)
Heat exchanger specifications
Model
Type of recovery exchanger
Quantity
Max. operating pressure on wet side
Total water content of recovery exchangers
245.3
280.3
315.3
U.M.
Brazed plates
1
600
2.4
2.4
N°
kPa
l
1.9
280.3
315.3
U.M.
NET NOMINAL performances - IR unit - Standard plants
Base setting up AB
Model
IR
245.3
Cooling A35W7 - W45 (source : air in 35°C d.b. / plant : water in 12°C out 7°C / Recovery : water in 40°C out 45°C )
Cooling capacity
244
288
311
Total power input
85.3
101
108
EER
2.86
2.85
2.89
HRE
3.77
3.75
3.80
Water flow rate
11.8
13.9
15.0
Water pressure drop
59
65
57
Recovered heating capacity
77.3
90.8
97.7
Recovered water flow rate
3.69
4.34
4.67
Recovered water pressure drop
30
19
20
kW
kW
W/W
W/W
l/s
kPa
kW
l/s
kPa
Low noise setting up AS
Model
245.3
280.3
315.3
Cooling A35W7 - W45 (source : air in 35°C d.b. / plant : water in 12°C out 7°C / Recovery : water in 40°C out 45°C )
Cooling capacity
237
280
302
Total power input
90.0
106
114
EER
2.63
2.65
2.66
HRE
3.56
3.56
3.58
IR
Water flow rate
11.4
13.5
14.6
Water pressure drop
55
61
54
Recovered heating capacity
83.1
97.0
104.9
Recovered water flow rate
3.97
4.63
5.01
Recovered water pressure drop
35
22
23
Extra low noise setting up AX
Model
IR
245.3
280.3
Cooling A35W7 - W45 (source : air in 35°C d.b. / plant : water in 12°C out 7°C / Recovery : water in 40°C out 45°C )
Cooling capacity
232
274
296
Total power input
91.2
109
115
EER
2.55
2.52
2.56
HRE
3.48
3.45
3.50
Water flow rate
11.2
13.2
14.3
Water pressure drop
53
58
52
Recovered heating capacity
85.1
100.9
107.8
Recovered water flow rate
4.07
4.82
5.15
Recovered water pressure drop
36
23
24
Data declared according to EN 14511. The values are referred to units without options and accessories.
EER (Energy Efficiency Ratio) = ratio of the total cooling capacity to the effective power input of the unit
ESEER (European Seasonal Energy Efficiency Ratio)
COP (Coefficient Of Performance) = ratio of the total heating capacity to the effective power input of the unit
HRE (Heat Recovery Efficiency) = ratio of the total capacity of the system (heating plus cooling capacity) to the effectice power input
24
315.3
U.M.
kW
kW
W/W
W/W
l/s
kPa
kW
l/s
kPa
U.M.
kW
kW
W/W
W/W
l/s
kPa
kW
l/s
kPa
TECHNICAL DATA AND PERFORMANCE - DESUPERHEATER VERSION (VD)
Heat exchanger specifications
Model
Type of recovery exchanger
Quantity
Max. operating pressure on wet side
Total water content of recovery exchangers
245.3
280.3
315.3
U.M.
Brazed plates
1
600
2.4
2.4
N°
kPa
l
1.9
280.3
315.3
U.M.
NET NOMINAL performances - IP unit - Standard plants
Base setting up AB
Model
IP
245.3
Cooling A35W7 - W45 (source : air in 35°C d.b. / plant : water in 12°C out 7°C / Recovery : water in 40°C out 45°C )
Cooling capacity
235
278
300
Total power input
83.2
98.7
105
EER
2.82
2.82
2.85
HRE
3.73
3.72
3.76
Water flow rate
11.3
13.4
14.5
Water pressure drop
54
60
54
Recovered heating capacity
75.5
88.7
95.5
Recovered water flow rate
3.61
4.24
4.56
Recovered water pressure drop
29
18
19
kW
kW
W/W
W/W
l/s
kPa
kW
l/s
kPa
Low noise setting up AS
Model
245.3
280.3
315.3
Cooling A35W7 - W45 (source : air in 35°C d.b. / plant : water in 12°C out 7°C / Recovery : water in 40°C out 45°C )
Cooling capacity
228
270
291
Total power input
87.9
104
110
EER
2.59
2.60
2.64
HRE
3.52
3.52
3.56
IP
Water flow rate
11.0
13.0
14.0
Water pressure drop
51
57
50
Recovered heating capacity
81.1
95.0
102
Recovered water flow rate
3.88
4.54
4.87
Recovered water pressure drop
33
21
22
Extra low noise setting up AX
Model
IP
245.3
280.3
315.3
Cooling A35W7 - W45 (source : air in 35°C d.b. / plant : water in 12°C out 7°C / Recovery : water in 40°C out 45°C )
Cooling capacity
224
265
285
Total power input
89.0
106
113
EER
2.52
2.51
2.52
HRE
3.45
3.44
3.45
Water flow rate
10.8
12.8
13.7
Water pressure drop
49
55
48
Recovered heating capacity
83.1
98.0
106
Recovered water flow rate
3.97
4.68
5.06
Recovered water pressure drop
35
22
23
U.M.
kW
kW
W/W
W/W
l/s
kPa
kW
l/s
kPa
U.M.
kW
kW
W/W
W/W
l/s
kPa
kW
l/s
kPa
Data declared according to EN 14511. The values are referred to units without options and accessories.
EER (Energy Efficiency Ratio) = ratio of the total cooling capacity to the effective power input of the unit
ESEER (European Seasonal Energy Efficiency Ratio)
COP (Coefficient Of Performance) = ratio of the total heating capacity to the effective power input of the unit
HRE (Heat Recovery Efficiency) = ratio of the total capacity of the system (heating plus cooling capacity) to the effectice power input
NOTE : THE HEATING CAPACITY RECOVERED BY THE DESUPERHEATER EXCLUSIVELY REFERS TO
UNITS OPERATING IN THE COOLING MODE.
25
TECHNICAL DATA AND PERFORMANCE - DESUPERHEATER VERSION (VD)
Desuperheaters VD performances
The graphs allow to get the corrective factors to be applied to the nominal performances in order to obtain the real performances in
the selected operating conditions.
The reference nominal condition is: A35W7 - 45 (source : air in 35°C d.b. / plant : water in 12°C out 7°C / Recovery : water in 40°C out 45°C )
Potenza recuperata VD
Recovered capacity VD
Outlet air temperature (°C D.B.)
A = 20°C
1.5
B = 25°C
1.4
A
B
1.3
1.2
1.1
C = 30°C
C
D = 35°C
D
E
E = 40°C
F = 45°C
F
A35W7 - 45
1.0
25
0.9
35
30
40
0.8
45
20
0.7
0.6
0.5
0.4
0.3
0.2
30
35
40
45
50
55
Recovery outlet water temperature [°C]
60
65
70
The standard performances refer to a 5°C temperature difference between the water entering and leaving the heat exchanger and to operation of the unit with all fans at
nominal or maximum speed. A 0.44 x 10-4 m2 K/W fouling factor has also been considered with the unit installed at zero meters above sea level (Pb = 1013mbar).
26
TECHNICAL DATA AND PERFORMANCE - DESUPERHEATER VERSION (VD)
Corrective factors
On the water leaving temperature of the desuperheater, extract from the graphs the correction factors that have to be applied to the
cooling capacity and power input.
Es. water leaving temperature of the desuperheater = 50°C
Cooling capacity PfVD= Pf x CPfVD → PfVD= Pf x 1,035
Power input PaVD= Pa x CPaVD → PaVD= Pa x 0,975
Cooling capacity coefficient
Coefficiente Potenza Frigorifera
1,060
1,055
1,050
1,045
1,040
1,035
1,030
1,025
1,020
1,015
1,010
1,005
1,000
25
30
35
40
45
50
55
60
65
70
75
65
70
75
Recovery outlet water temperature [°C]
Compressor power input coefficient
Coefficiente Potenza Assorbita Compressori
1,000
0,995
0,990
0,985
0,980
0,975
0,970
0,965
0 960
0,960
0,955
0,950
25
30
35
40
45
50
55
60
Recovery outlet water temperature [°C]
27
TECHNICAL DATA AND PERFORMANCE - RECOVERY VERSION (VR)
Heat exchanger specifications
Model
Type of recovery exchanger
Quantity
Max. operating pressure on wet side
Total water content of recovery exchangers
245.3
280.3
315.3
U.M.
18.8
Brazed plates
1
600
22.0
23.6
N°
kPa
l
280.3
315.3
U.M.
NET NOMINAL performances - IR unit - Standard plants
Base setting up AB
Model
245.3
Cooling A35W7 - W45 (source : air in 35°C d.b. / plant : water in 12°C out 7°C / Recovery : water in 40°C out 45°C )
Cooling capacity
246
291
314
Total power input
77.4
91.2
97.7
EER
3.19
3.19
3.21
HRE
7.32
7.34
7.38
IR
Water flow rate
11.9
14.0
15.2
Water pressure drop
60
66
59
Recovered heating capacity
320
378
407
Recovered water flow rate
15.3
18.1
19.4
Recovered water pressure drop
51
55
58
kW
kW
W/W
W/W
l/s
kPa
kW
l/s
kPa
Low noise setting up AS
Model
245.3
280.3
315.3
Cooling A35W7 - W45 (source : air in 35°C d.b. / plant : water in 12°C out 7°C / Recovery : water in 40°C out 45°C )
Cooling capacity
246
291
314
Total power input
77.4
91.2
97.7
EER
3.19
3.19
3.21
HRE
7.32
7.34
7.38
IR
Water flow rate
11.9
14.0
15.2
Water pressure drop
60
66
59
Recovered heating capacity
320
378
407
Recovered water flow rate
15.3
18.1
19.4
Recovered water pressure drop
51
55
58
U.M.
kW
kW
W/W
W/W
l/s
kPa
kW
l/s
kPa
Extra low noise setting up AX
Model
IR
245.3
280.3
Cooling A35W7 - W45 (source : air in 35°C d.b. / plant : water in 12°C out 7°C / Recovery : water in 40°C out 45°C )
Cooling capacity
246
291
314
Total power input
77.4
91.2
97.7
EER
3.19
3.19
3.21
HRE
7.32
7.34
7.38
Water flow rate
11.9
14.0
15.2
Water pressure drop
60
66
59
Recovered heating capacity
320
378
407
Recovered water flow rate
15.3
18.1
19.4
Recovered water pressure drop
51
55
58
Data declared according to EN 14511. The values are referred to units without options and accessories.
EER (Energy Efficiency Ratio) = ratio of the total cooling capacity to the effective power input of the unit
ESEER (European Seasonal Energy Efficiency Ratio)
COP (Coefficient Of Performance) = ratio of the total heating capacity to the effective power input of the unit
HRE (Heat Recovery Efficiency) = ratio of the total capacity of the system (heating plus cooling capacity) to the effectice power input
28
315.3
U.M.
kW
kW
W/W
W/W
l/s
kPa
kW
l/s
kPa
TECHNICAL DATA AND PERFORMANCE - RECOVERY VERSION (VR)
Total recovery VR performances
The graphs allow to get the corrective factors to be applied to the nominal performances in order to obtain the real performances in
the selected operating conditions.
The reference nominal condition is: A35W7 - 45 (source : air in 35°C d.b. / plant : water in 12°C out 7°C / Recovery : water in 40°C out 45°C )
Recovered capacity VR
Recovery outlet water temperature (°C)
A = 35°C
1.4
B = 40°C
1.3
B
A
C
D
C = 45°C
E
D = 50°C
E = 55°C
1.2
1.1
A35W7 - 45
1.0
0.9
0.8
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
Evaporator outlet water temperature [°C]
The standard performances refer to a 5°C temperature difference between the water entering and leaving the heat exchanger and to operation of the unit with all fans at
nominal or maximum speed. A 0.44 x 10-4 m2 K/W fouling factor has also been considered with the unit installed at zero meters above sea level (Pb = 1013mbar).
29
BR - BP UNIT
Corrective factors
Correction factors to apply to the basic version data.
ETHYLENE GLYCOL
Percentage Of glycol in mass / volume
Freezing point [°C]
Produced water temperature
CCPF - Cooling capacity
CCPA - Power input
CCQA - Water flow rate
CCDP - Pressure drop
Percentage Of glycol in mass / volume
Freezing point [°C]
Produced water temperature
CCPF - Cooling capacity
CCPA - Power input
CCQA - Water flow rate
CCDP - Pressure drop
Percentage Of glycol in mass / volume
Freezing point [°C]
Produced water temperature
CCPF - Cooling capacity
CCPA - Power input
CCQA - Water flow rate
CCDP - Pressure drop
4
0,912
0,967
1,071
1,090
4
0,899
0,960
1,106
1,140
4
0,884
0,880
1,150
1,190
2
0,855
0,957
1,072
1,095
2
0,842
0,950
1,107
1,145
2
0,827
0,870
1,151
1,195
0
0,798
0,947
1,073
1,100
0
0,785
0,940
1,108
1,150
0
0,770
0,860
1,153
1,200
-2
0,738
0,927
1,075
1,110
20 / 18,1
-8
-4
0,683
0,897
1,076
1,120
-6
-
-8
-
-10
-
-12
-
-2
0,725
0,920
1,109
1,155
30 / 27,7
-14
-4
0,670
0,890
1,110
1,160
-6
0,613
0,870
1,111
1,175
-8
0,562
0,840
1,112
1,190
-10
-
-12
-
-2
0,710
0,840
1,154
1,210
40 / 37,5
-22
-4
0,655
0,810
1,155
1,220
-6
0,598
0,790
1,157
1,235
-8
0,547
0,760
1,158
1,250
-10
0,490
0,724
1,159
1,269
-12
0,437
0,686
1,161
1,290
-2
0,690
0,900
1,039
1,130
20 / 19,4
-7
-4
0,641
0,875
1,040
1,140
-6
-
-8
-
-10
-
-12
-
-2
0,680
0,888
1,069
1,200
30 / 29,4
-13
-4
0,630
0,865
1,069
1,210
-6
0,583
0,838
1,068
1,255
-8
0,536
0,810
1,067
1,300
-10
-
-12
-
PROPYLENE GLYCOL
Percentage Of glycol in mass / volume
Freezing point [°C]
Produced water temperature
CCPF - Cooling capacity
CCPA - Power input
CCQA - Water flow rate
CCDP - Pressure drop
Percentage Of glycol in mass / volume
Freezing point [°C]
Produced water temperature
CCPF - Cooling capacity
CCPA - Power input
CCQA - Water flow rate
CCDP - Pressure drop
4
0,874
0,945
1,037
1,110
4
0,869
0,935
1,072
1,160
2
0,807
0,935
1,038
1,115
2
0,799
0,923
1,071
1,175
0
0,740
0,925
1,039
1,120
0
0,729
0,910
1,070
1,190
Percentage Of glycol in mass / volume
40 / 39,6
Freezing point [°C]
-21
Produced water temperature
4
2
0
-2
-4
-6
CCPF - Cooling capacity
0,848
0,784
0,719
0,670
0,620
0,570
CCPA - Power input
0,865
0,855
0,845
0,820
0,795
0,773
CCQA - Water flow rate
1,116
1,114
1,112
1,110
1,108
1,107
CCDP - Pressure drop
1,230
1,275
1,320
1,375
1,430
1,500
Based on leaving water temperature of the evaporator and condensing temperature = 7°C extract Cooling Capacity
Input (kWa).
Based on type and percentage of glycol extract CCPF, CCPA, CCQA, CCDP.
Then calculate.
Pf_brine = kWf x CCPF
Pass_CP_brine = kWa x CCPA
Then calculate brine flow rate:
Q_brine_evap [l/s]=CCQA x (Pf_brine [kW]*0.86/DT_brine)/3.6
where DT_brine is the difference between inlet-outlet evaporator water temperature:
DT_brine=Twin_evap_brine-Twout_evap_brine
With this brine flow rate enter in abscissa on the water pressure drop of the evaporator then you have Dp_app.
Finally you can calculate the actual pressure drop of the brine on evaporator side:
Dp_evap_brine =CCDP x Dp_app
BR and BP units must be used with a mixture of water and antifreeze fluid (eg glycol) in a percentage enought to prevent freezing
of the mixture under all possible conditions, otherwise it will VOID
THE WARRANTY.
Please contact our customer service to set the following parameters: →
30
-8
0,520
0,750
1,105
1,570
(kWf) and
-10
-12
0,478
0,438
0,714
0,680
1,103
1,101
1,642
1,724
Compressors Power
Parameter Default How to calculate
Example
to set
value
the value to set with TWE = 0°C
AL51
3 °C
TWE -4 °C
-4 °C
TR10
9 °C
TWE +2 °C
+2 °C
TR11
7 °C
TWE +2 °C
+2 °C
HI12
4 °C
TWE -3 °C
-3 °C
HI14
4 °C
TWE -3 °C
-3 °C
TWE= Evaporator outlet desired water temperature
Example
with TWE = -5°C
-9 °C
-3 °C
-3 °C
-8 °C
-8 °C
NOISE LEVELS
Open field
Q=2
The noise levels refer to units operating in the nominal conditions (A35W7), due to a change of
external air temperature noise levels may change to ensure proper functioning of the unit within
operating range.
The acoustic pressure levels are calculated 1/ 5 / 10 meters away from the outer surface of the unit
operating in the free field and resting on a reflecting surface (directional factor of 2).
SWL = Sound power levels, with reference to 1x10-12 W.
The Total sound power level in dB(A) measured in compliance with ISO 9614 standards, is certified
according to the Eurovent certification program.
Eurovent certification (E) exclusively refers to the Total Sound Power in db(A), which is therefore the
only binding acoustic specification (the values of the Octave bands in the table are indicative).
SPL = Sound pressure levels, with reference to 2x10-5 Pa.
The sound pressure levels are values calculated by applying the ISO-3744 relation (Eurovent 8/1).
Base setting up AB
MOD.
245.3
280.3
315.8
63
96.0
97.0
97.0
125
94.0
95.0
95.0
250
92.0
92.0
92.0
SWL (dB)
Octave bands (Hz)
500
1000
86.0
85.0
88.0
86.0
88.0
86.0
250
88.0
88.0
88.0
SWL (dB)
Octave bands (Hz)
500
1000
82.0
81.0
84.0
82.0
84.0
82.0
2000
79.0
80.0
80.0
4000
72.0
72.0
72.0
8000
66.0
66.0
66.0
dB
96
97
97
SWL (dB)
Octave bands (Hz)
500
1000
80.0
79.0
82.0
80.0
82.0
80.0
2000
77.0
78.0
78.0
4000
70.0
70.0
70.0
8000
64.0
65.0
65.0
dB
94
95
95
SWL
2000
83.0
84.0
84.0
4000
76.0
76.0
76.0
8000
68.0
68.0
68.0
dB
100
100
100
dB(A)
90.0
91.0
91.0
SPL dB(A)
(E)
1m
71
72
72
5m
63
64
64
10 m
58
59
59
Low noise setting up AS
MOD.
245.3
280.3
315.8
63
93.0
94.0
94.0
125
90.0
91.5
91.5
SWL
dB(A)
86.0
87.0
87.0
SPL dB(A)
(E)
1m
67
68
68
dB(A) (E)
84.0
85.0
85.0
1m
65
66
66
5m
59
60
60
10 m
54
55
55
Extra low noise setting up AX
MOD.
245.3
280.3
315.8
63
91.0
92.0
92.0
125
88.0
89.0
89.0
250
86.0
86.0
86.0
SWL
SPL dB(A)
5m
57
58
58
10 m
52
53
53
(E): EUROVENT certifield data. The values are for units without options and accessories.
31
OPERATING LIMITS
The table below lists the operating limits within which correct operation of the units is guaranteed, depending on the Version and
Operating Mode available for each type of unit.
Remember that in Heat Pump units, heat recovery only takes place during operation in the cooling mode.
STANDARD UNIT
Thermal gradient of the water
18
Limit value
Minimum
°C
3
Maximum
°C
8
Verify that water flow rate is inside the admissible
limits.
18
NOTE: the admissible limits for water flow rate on heat exchangers
are indicated under the related pressure drop graph (see section
"water pressure drop"). If the unit is equipped with pumping module the admissible limits are indicated under the related working
head graph (see section "working head").
IN COOLING MODE
45 50
18
18
UNIT MEDIUM TEMPERATURE - 0 M 5
UNIT HIGH TEMPERATURE - 0 A 5
WATER OUTLET
TEMPERATURE
WATER OUTLET
TEMPERATURE
DT Water= 5°C
18
18
18
DT Water= 5°C
18
18
18
45 50
EXTERNAL AIR
TEMPERATURE
45 50
EXTERNAL AIR
TEMPERATURE
47 52
45 50
With fans modulating control
47 52
-7
With fans modulating control and brine
ATC
45 50 (Advanced Temperature Control) function may occur, if present
ATC
IN HEATING MODE
47 52
BRINE UNIT BR - BP - IN COOLING MODE
GLICOLE WATER
OUTLET
TEMPERATURE
WATER OUTLET
TEMPERATURE
DT Water= 5°C
DT Water= 5°C
-7
-7
-7
EXTERNAL AIR
TEMPERATURE
EXTERNAL AIR
TEMPERATURE
-8
-7
-7
45
With fans modulating control and brine is mandatory
With fans modulating control
Brine is mandatory
HEAT RECOVERY UNIT
-8
-8
-7
-8
-7
45
45
EVAPORATOR
Version
Limit value
-8
with
Desuperheater (VD)
Recovery water temp. from
30 to 70°C
(Refer to Desuperheater
Standard45Performances
table)
-7
Total Recovery (VR)
[°C] WATER OUTLET
45
-7
TEMPERATURE
18
20
7
RECOVERED
WATER OUTLET
TEMPERATURE
5
See graph
35
32
45
55
[°C]
20
30
40
50
60
70
80
90
6
Upper limit value
Lower limit value
MODELS
Graphic refer
Operating range
Water pressure drop(kPa)
(kPa)
100
110
120
130
140
150
Q
Δp
Q
Δp
7
122
245.3
1
6.80
8
9
280.3
2
7.70
20
17.0
72
10
11
12
(l/s)(l/s)
Water flow rate
72
315.3
3
8.80
13
UM
l\s
kPa
l\s
kPa
14
Q= Water
flow rate
∆P= Water
pressure
drop
NOTE
15
16
17
3
2
1
315 .3
280 .3
245 .3
The graph below illustrates the water pressure drop values in kPa depending on the flow rate in liters/second. The operating range is delimited by the
minimum and maximum values given in the next table.
The graphs are referred to units operating with water at the temperature of 10°C (density 1000 kg/m3).
Plant side exchanger
WATER PRESSURE DROP
33
Water pressure drop (kPa)
10
20
30
40
50
60
70
80
2
Upper limit value
Lower limit value
MODELS
Graphic refer
Operating range
(kPa)
34
Q
Δp
Q
Δp
6.0
80
245.3
1
2.20
3
4
5
280.3
2
3.20
10
7.50
57
7.50
52
315.3
3
3.30
l/s (l/s)
Water flow rate
6
UM
l\s
kPa
l\s
kPa
1
Q= Water
flow rate
∆P= Water
pressure
drop
NOTE
7
3
2
8
315.3
280.3
245.3
The graph below illustrates the water pressure drop values in kPa depending on the flow rate in liters/second. The operating range is delimited by the
minimum and maximum values given in the next table.
The graphs are referred to units operating with water at the temperature of 10°C (density 1000 kg/m3).
Desuperheaters
WATER PRESSURE DROP
20
30
40
50
60
70
80
90
100
110
120
130
140
150
10
11
Upper limit value
Lower limit value
MODELS
Graphic refer
Operating range
Water pressure drop (kPa)
(kPa)
Q
Δp
Q
Δp
12
13
45
245.3
1
10.0
14
280.3
2
11.0
20
17
49
15
16
17
18
Water flow rate (l/s) l/s
63
315.3
3
11.40
19
20
UM
l\s
kPa
l\s
kPa
21
23
Q= Water
flow rate
∆P= Water
pressure
drop
NOTE
22
24
25
3
2
1
315.3
280.3
245.3
The graph below illustrates the water pressure drop values in kPa depending on the flow rate in liters/second. The operating range is delimited by the
minimum and maximum values given in the next table.
The graphs are referred to units operating with water at the temperature of 10°C (density 1000 kg/m3).
Total recovery exchanger
WATER PRESSURE DROP
35
Working head (kPa)
(kPa)
36
6
1
7
MODELS
Graphic refer
Lower limit value
Upper limit value
Operating range
0
50
100
150
200
250
300
350
400
Q
Q
8
9
245.3
1
6.8
13.6
2
10
11
280.3
1
7.7
14.7
12
(l/s)
Water flow rate (l/s)
3
315.3
2
8.8
16.7
13
UM
l\s
l\s
Q= Water
flow rate
NOTE
14
15
16
17
Working head is that at the pumping module outlet reduced by all pressure losses inside the unit.
The graph below illustrates for the pumping module the working head values in kPa depending on the flow rate in liters/second. The operating range is
delimited by the minimum and maximum values given in the next table.
The graphs are referred to units operating with water at the temperature of 10°C (density 1000 kg/m3).
Standard working head pumps
315.3
280.3
245.3
WORKING HEAD
Working head (kPa)
0
50
100
150
200
250
300
350
6
7
MODELS
Graphic refer
Lower limit value
Upper limit value
Operating range
(kPa)
400
Q
Q
8
245.3
1
6.80
16.6
9
11
280.3
1
7.70
17.0
Water flow rate (l/s) (l/s)
10
315.3
2
8.80
17.0
12
13
UM
l\s
l\s
Q= Water
flow rate
NOTE
14
1
15
2
16
3
17
Working head is that at the pumping module outlet reduced by all pressure losses inside the unit.
The graph below illustrates for the pumping module the working head values in kPa depending on the flow rate in liters/second. The operating range is
delimited by the minimum and maximum values given in the next table.
The graphs are referred to units operating with water at the temperature of 10°C (density 1000 kg/m3).
High working head pumps
315 .3
280 .3
245 .3
WORKING HEAD
37
Mod. 245.3 - 280.3 - 315.3
2196.5
1 - Access panel to electric panel’s power section
2 - Access panel to compressor compartment
3 - ø 13 mm vibration damper fixing holes
4 - Coil protection grilles (accessory)
5 - ø 65 mm lifting holes
38
1104
1436
9
1359
990
860
IN 10
IN
OUT
*: Center distance of vibration damper holes
536
518
6 - ø 22 mm input hole for accessory cables
7- ø 60 mm hole for electric power supply input
9 - Water inlet for AM SS (see table below)
10 - Water inlet for PS (see table below)
11 - Water outlet (see table below)
1100
1047
1104
11
1768
4030
4160
5020
12 - Water inlet for Desuperheater (VD)
13 - Water outlet for Desuperheater (VD)
14 - Water inlet for Total recovery (VR)
15 - Water outlet for Total recovery (VR)
1151
5020
742
DIMENSIONAL AND PHYSICAL DATA
Dimensional data
DIMENSIONAL AND PHYSICAL DATA
STANDARD UNIT
(WITHOUT KIT)
UNIT WITH ACCESSORY
VICTAULIC CONNECTION
16
2
17 - OUT
Ø 2"½ (DN 65)
VICTAULIC (1)
189
339
Ø 3" (DN 80)
VICTAULIC
16 - IN
Ø 2"½ (DN 65)
VICTAULIC (1)
Ø 3" (DN 80)
VICTAULIC
16 - Water inlet for plant exchanger
17 - Water outlet for plant exchanger
UNIT WITH OPTIONS
ID
HEAT RECOVERY VERSION
MP AM -
PIPE KIT WITHOUT
TANK MKT SS
Tank and standard pump
MKT AM Pipe kit with tank
Standard pump without tank
MP SS
VD
Desuperheaters version
9
MP PS - Tank and standard pump
(primary and secondary configuration)
-
IN 3" (DN80) VIC
-
10
IN 3" (DN80) VIC
-
-
11
OUT 3" (DN80) VIC
OUT 3" (DN80) VIC
-
12
-
-
-
13
-
-
-
14
-
-
-
15
-
-
-
Inclusive of VICTAULIC brackets and iron
pipes (IN/OUT) that are
supplied with the unit.
-
39
DIMENSIONAL AND PHYSICAL DATA
Minimum space required for operation
2000
To correctly install the unit, comply with the measurements for the
free area that must be left around the unit, as shown in the figure.
This will ensure good air circulation, allow the unit to operate correctly and facilitate future maintenance work.
The distances must be doubled if the unit is to be installed in a pit.
NOTE. Allow for an uncluttered area of not less than 2.5 meters above the unit.
Italiano
English
Successivamente procedere
come segue:
· Avvitare il martinetto (Pos.5) sino a battuta nella sede filettata del supporto antivibrante (Pos.1).
· Avvitare
basso (Pos.2).
The condensate tray (if present) must
have iladado
suitable
drain trap to
· Avvitare il dado alto (Pos.3) accompagnando la rondella
prevent spilling of water during operation.
piana (Pos.4).
· Inserire i martinetti (Pos.5) nei rispettivi fori.
· Verificare che il basamento della macchina sia appoggiato
sulle rondelle (Pos.4), controllare la planarità tramite livella,
agendo sul rispettivo dado (Pos.3).
·Bloccare a posizione ottenuta con rondella Grower (Pos.6) e
rispettivo dado basso (Pos.2).
· Al termine dell'operazione verificare che la macchina sia
elastica e libera da vincoli fissi.
Position of condensate drain
Now proceed in the following way:
· Fully screw the jack (Pos. 5) into the threaded housing of
the vibration dampener support (Pos. 1).
· Screw the short nut (Pos.2).
· Tighten the tall nut (Pos. 3) on to the flat washer (Pos.4).
· Insert the jacks (Pos. 5) into their relative holes.
· Make sure that the machine base rests on the washers
(Pos.4)Check for flatness with a level and adjust by means of
the respective nut (Pos.2).
· Lock the obtained position with the Grower washer (Pos. 6)
and respective short nut (Pos.2).
· At the end of the operation, make sure that the machine is
sprung and free from fixed restraints.
Espanol
Français
A continuación operar del
Ensuite procéder comme suit :
siguiente modo:
· Visser la vèrin (Pos.5) jusqu'en butée dans le logement fileRubber vibration-damper installation
· Enroscar el cabestrante (Pos. 5) hasta el tope en la parte
té du support (Pos.1).
roscada del soporte antivibrante (Pos. 1).
· Visser l'écrou bas (Pos.2).
· Enroscar la tuerca baja (Pos.2).
· Visser l'écrou haut (Pos.3) en mettant une rondelle plate
·
Enroscar la tuerca alta (Pos.3) acompañando la arandela
(Pos.4).
To prevent the operating unit from transmitting
thelesbearing
structure, vibration
dampening materials should be inserted
plana (Pos.4).
· Introduire les vibrations
vèrins (Pos.5)to
dans
trous correspondants.
· Introducir los cabestrantes (Pos.5) en los relativos orificios.
· Vérifier que le bâti de la machine est appuyé sur les rondelunder the bearing points.
· Controlar que la base de la máquina apoyada sobre las
les (Pos.4), contrôler la planéité au moyen du niveau, en
The unit can be supplied with the rubber
orl'écrou
spring
vibration dampening accessory. This
must be
mounted
the installer.
arandelas
(Pos.4),
controlarby
la planeidad
mediante un nivel,
serrant
(Pos.2).
operando con la relativa tuerca (Pos. 2).
· Bloquer à la position obtenue avec rondelle Grower (Pos.6)
· Bloquear una vez lograda la posición con arandela abierta
et écrou bas respectif (Pos.2).
(Pos. 6) y la respectiva
bajasupport
(Pos. 2).
· En finsupport
d'opération vérifier que la machine est élastique et
AVG - Rubber
AVM - tuerca
Spring
· Al finalizar la operación controlar que la máquina resulte elálibre de tous liens fixes
stica y libre de limitaciones fijas.
36
6
100
2
3
M16
M12
M16
4
3
2
5
1
B
37
C
136
D
150
E
170
F
12,5
G
3,5
UM
mm
3QE31501
A
106
For details on installation refer to operating instruction supplied with the accessory.
40
2
DIMENSIONAL AND PHYSICAL DATA
Area of support
To correctly install the unit, comply with the measurements for the free area that must be left around the machine, as shown in the
drawing.
50
1097
50
5018
Weight during transport
UNIT WITHOUT WATER STORAGE TANK
Unit WITHOUT Hydronic Kit
IR Version
Acustic version
Mod.
245.3
285.3
315.3
AB-AS
Center of gravity
position [mm]
A
B
441
434
425
Unit WITH Hydronic Kit
IR Version
Acustic version
Mod.
245.3
285.3
315.3
1908
1872
1835
Weight
[Kg]
1678
1738
1837
A
B
1959
1918
1876
Weight
[Kg]
1908
1968
2087
Center of gravity
position [mm]
A
B
Unit WITH Hydronic Kit
IR Version
Acustic version
Mod.
Center of gravity
position [mm]
A
447
442
430
AB-AS
456
447
436
2006
1963
1919
Mod.
1731
1793
1886
245.3
285.3
315.3
A
450
442
431
B
1861
1825
1788
AX
Weight
[Kg]
1793
1868
1942
Center of gravity
position [mm]
A
467
459
446
B
1866
1829
1791
Weight
[Kg]
1846
1923
1991
Weight
[Kg]
1828
1888
1987
B
1963
1921
1879
Acustic version
Weight
[Kg]
Mod.
1961
2023
2136
245.3
285.3
315.3
A
472
464
450
B
2010
1966
1922
A
440
434
422
IP Version
AX
Center of gravity
position [mm]
AB-AS
Center of gravity
position [mm]
Acustic version
Weight
[Kg]
Mod.
1881
1943
2036
245.3
285.3
315.3
B
1924
1883
1841
AX
Weight
[Kg]
2023
2098
2192
Center of gravity
position [mm]
A
455
449
435
AB-AS
Center of gravity
position [mm]
A
465
455
442
B
1976
1933
1889
B
1928
1886
1844
Weight
[Kg]
2076
2153
2241
AX
Weight
[Kg]
1943
2018
2092
Center of gravity
position [mm]
A
480
470
455
B
1980
1936
1892
Weight
[Kg]
1996
2073
2141
IP Version
AB-AS
Center of gravity
position [mm]
A
B
1913
1876
1838
Weight
[Kg]
AB-AS
Center of gravity
position [mm]
IP Version
Center of gravity
position [mm]
Acustic version
245.3
285.3
315.3
A
459
452
441
Acustic version
AX
UNIT WITH WATER STORAGE TANK
Unit WITHOUT Hydronic Kit
IR Version
Mod.
Center of gravity
position [mm]
AB-AS
431
426
416
IP Version
AX
B
AX
Weight
[Kg]
Center of gravity
position [mm]
A
B
Acustic version
Weight
[Kg]
Mod.
AB-AS
Center of gravity
position [mm]
A
B
AX
Weight
[Kg]
Center of gravity
position [mm]
A
B
245.3
446
2057
2035
461
2059
2088
245.3
455
2032
2150
466
2034
285.3
439
2009
2095
454
2011
2150
285.3
447
1984
2225
459
1986
315.3
427
1960
2210
440
1961
2259
315.3
433
1935
2315
446
1936
NOTA: For Desuperheater versions the total weight increases of 4%. For Heat recovery versions the total weight increases of 10%.
Weight
[Kg]
2192
2271
2365
41
DATI FISICI E DIMENSIONALI
Operation weight
UNIT WITHOUT WATER STORAGE TANK
IR version
Unit WITHOUT Hydronic kit
AB-AS
Acustic version
Models
245.3
285.3
315.3
Center of gravity
position [mm]
A
446
438
428
Unit WITH Hydronic kit
B
1904
1869
1833
W1
405
420
445
245.3
285.3
315.3
Center of gravity
position [mm]
A
434
428
418
B
1966
1924
1881
W1
531
548
582
Center of gravity
position [mm]
A
486
473
459
Unit WITH Hydronic kit
245.3
285.3
315.3
W2
317
327
348
W3
127
131
139
W4
341
352
373
W5
413
426
452
W6
200
206
219
B
1909
1873
1836
W1
418
433
456
B
2196
2163
2129
W1
474
486
507
W2
393
404
422
W3
298
306
320
Weight
[Kg]
1929
1991
2113
Center of gravity
position [mm]
A
450
444
432
B
1970
1927
1884
Load on the supports [Kg]
W1
546
563
595
W4
379
389
406
W5
448
460
480
W6
307
315
329
Weight
[Kg]
2299
2361
2463
Center of gravity
position [mm]
A
458
449
434
B
2258
2218
2175
W2
501
514
537
W3
276
282
295
Weight
[Kg]
1742
1806
1902
W3
131
135
142
W4
350
361
382
W5
424
438
463
W6
206
212
224
Weight
[Kg]
1982
2046
2162
A
502
490
473
B
2200
2166
2132
W1
485
498
518
W2
403
413
430
W3
305
314
326
W4
387
398
414
W5
459
471
490
W6
314
322
335
Weight
[Kg]
2352
2416
2512
AX
Load on the supports [Kg]
W1
476
488
510
W2
326
336
356
Load on the supports [Kg]
AB-AS
Center of gravity
position [mm]
W2 W3 W4 W5 W6
270 87 383 348 236
280 90 397 361 244
295 95 418 380 257
AX
Load on the supports [Kg]
Acustic version
Models
1689
1751
1853
A
464
456
444
AB-AS
Acustic version
245.3
285.3
315.3
Weight
[Kg]
Load on the supports [Kg]
AX
Load on the supports [Kg]
UNIT WITH WATER STORAGE TANK
IR version
Unit WITHOUT Hydronic kit
Models
W2 W3 W4 W5 W6
262 84 371 338 229
271 88 385 350 237
287 93 407 371 251
Center of gravity
position [mm]
AB-AS
Acustic version
Models
AX
Load on the supports [Kg]
W4
388
398
416
W5
526
539
564
W6
338
347
363
Weight
[Kg]
2506
2568
2686
Center of gravity
position [mm]
A
473
464
447
B
2260
2220
2176
Load on the supports [Kg]
W1
486
498
520
W2
512
525
547
W3
282
289
301
W4
397
407
424
W5
537
551
574
W6
345
354
369
Weight
[Kg]
2559
2623
2735
UNIT WITHOUT WATER STORAGE TANK
IP version
Unit WITHOUT Hydronic kit
AB-AS
Acustic version
Models
245.3
285.3
315.3
Center of gravity
position [mm]
A
455
446
434
Unit WITH Hydronic kit
B
1857
1822
1786
W1
433
451
470
245.3
285.3
315.3
Center of gravity
position [mm]
A
443
436
424
B
1931
1889
1846
W1
560
581
608
Acustic version
245.3
285.3
315.3
Center of gravity
position [mm]
A
495
481
465
Unit WITH Hydronic kit
B
2166
2133
2099
1804
1881
1958
A
472
463
449
B
1862
1826
1789
W2
335
347
363
W3
134
139
145
W4
359
373
390
W5
435
452
473
W6
211
219
229
W1
446
465
482
W2
412
425
438
W3
313
322
332
Center of gravity
position [mm]
W2 W3 W4 W5 W6
288 93 408 371 251
300 97 425 387 262
311 100 441 401 272
2034
2111
2208
A
458
451
437
B
1935
1892
1849
Load on the supports [Kg]
W1
572
594
622
AB-AS
Weight
[Kg]
1857
1936
2007
W2
341
355
371
W3
137
142
149
W4
367
381
399
W5
444
462
483
W6
215
224
234
Weight
[Kg]
2076
2157
2258
AX
Load on the supports [Kg]
W1
496
512
527
Weight
[Kg]
Center of gravity
position [mm]
W4
397
409
421
W5
470
484
499
W6
321
331
341
Weight
[Kg]
2409
2484
2558
Center of gravity
position [mm]
A
510
496
478
B
2170
2136
2102
AB-AS
Acustic version
Models
Weight
[Kg]
Load on the supports [Kg]
AX
Load on the supports [Kg]
UNIT WITH WATER STORAGE TANK
IP version
Unit WITHOUT Hydronic kit
Models
W2 W3 W4 W5 W6
280 90 396 361 244
292 94 413 376 255
304 98 430 392 265
Center of gravity
position [mm]
AB-AS
Acustic version
Models
AX
Load on the supports [Kg]
Load on the supports [Kg]
Load on the supports [Kg]
W1
507
523
537
W2
421
435
446
W3
320
330
338
W4
405
418
429
W5
480
495
508
W6
329
339
348
Weight
[Kg]
2462
2539
2607
AX
Weight
[Kg]
Center of gravity
position [mm]
Load on the supports [Kg]
Weight
[Kg]
A
B
W1 W2 W3 W4 W5 W6
A
B
W1 W2 W3 W4 W5 W6
245.3
467
2233
498 524 288 406 550 354 2621
478
2235
506 533 293 413 559 360 2663
285.3
457
2193
513 540 297 418 567 364 2698
469
2195
521 549 302 425 576 370 2744
315.3
440
2150
530 558 307 433 586 377 2791
453
2151
540 568 313 440 597 384 2841
NOTA: For Desuperheater versions VD the total weight increases of 4%. For Heat recovery versions VR the total weight
42 increases of 10%.
RECEPTION AND POSITIONING
Inspections on arrival
As soon as the appliance is consigned, it is essential to make sure that all the ordered items have been received and that the
shipment is complete. Carefully check that the equipment has not been damaged. If visible damage is discovered, immediately inform
the haulage contractor and write “Collected with reserves owing to evident damage” on the consignment note.
Delivery ex works means that, as established by law, reimbursement of any damages is at the insurance company’s charge.
Safety prescriptions
Comply with the current safety regulations concerning the equipment to use when handling the unit or the required ways of operating.
Use single protection devices as goggles, gloves, helmets… when handling the unit to avoid risk of injuries.
Handling
Plan the handling activity verifying:
• Weight of the unit indicated on the data plate of the appliance and in the section “DIMENSIONAL and PHYSICAL DATA” of this
manual
• Lifting capacity of the equipment that has to be used appropriate to the weight of the unit
• Type and dimensions of the unit
Tipo
A at the
• Center of Gravity position and the availability of straps / ropes or other devices able of positioning the lifting hook
exactly
unit center of gravity: For the CG position in transport and operation, ref. section “DIMENSIONAL and PHYSICAL DATA” . Also
refer to the labels (Part.3 Fig.1) identification of transport the center of gravity, applied on all 4 sides of the base.
• State and physical characteristics of the place where the unit has been handled (yard dirt, asphalted square, etc.).
• State and physical characteristics of the destination place (roof, yard, terrace, etc.).
• Length and type of the handling route with particular attention to critical points of transition such as ramps, stairs, uneven or
Tipo B
slippery steps, doors, etc..
Note that the handling examples shown in the drawings are indications, the choice of handling mean and method should
been done considering all the factors above mentioned.
Fig.1
2) Position metal pipes (Part 2 Fig.1) of adequate thickness in the holes
in the base of the unit for lifting.
• The end portions of the pipes must stand out by an adequate extent to
permit inserting the safety devices and housing the belts for lifting.
• Use spacer bars in the top of the unit to prevent crushing and damaging
the batteries and the parts intended to cover the assembly.
Part. 3
4
• Consult the DIMENSIONAL AND PHYSICAL DATA section for the
center of gravity position.
NOTE: To correctly lift the machine, the belts used must be longer
than 3.5 meters.
Refer to the data plates (Part.3 Fig.1) that identify the center of gravity
position, applied to the 4 sides of the base.
Use protections on edges (Part.4 Fig.1) to void risk of damages.
WARNING:
To safeguard persons and property, read the information on the packing that covers the unit before handling. Also make sure to:
• Handle the machine with care
• Do not stack other objects on top of the unit
43
RECEPTION AND POSITIONING
Storage
The units must be stored in a dry place, sheltered from the sun, rain, sand and wind.
Comply with the storage conditions given below:
• Do not stack the units
• Maximum temperature = 60°C
• Minimum temperature = -10°C
• Humidity = 90%
Packing removing
Recycle and dispose of packing material in conformity with local regulations, be extremely careful not to damage the unit.
Positioning
Before positioning please consider the overall dimensions and the technical requirements of the system and the unit, electric and
hydraulic connections and any air pipes/ducts or free passages.
Neglecting these aspects may decrease performance and operational life of the unit and therefore increase the operating costs and
maintenance.
Units are designed to be installed OUTSIDE and in fixed positions.
Before placing the unit be sure that:
• the location is in a safe accessible place
• the framework or the floor is adequate to support the weight of the unit WORKING (tank filled with water, etc…), please refer
to weight paragraph
• support points are leveled and aligned
• the place can not be subject to flooding
• the maximum level of the snow does not obstruct the airflow to the unit
To ensure the best air circulation to the unit and thus ensure a smooth operation it is recommended to:
•
•
•
•
avoid obstructions to air flow near or above the unit
protect the unit from high winds that can favor or not the airflow
protect the unit from heat sources or pollutants (chimneys, extractors…)
protect the unit from air stratification or recirculation (avoid ducting of the fans, containment structure, high walls or corners
next to the unit)
These advises if not respected can lead to a lower efficiency of the unit or to high pressure stops (in summer) or low pressure stops
(in winter).
44
HYDRAULIC CONNECTIONS
General rules
A mesh filter (hole Ø<1mm for plates heat exchanger Ø<1.5mm for shell and tubes heat exchanger) must be installed on the unit’s
water inlet otherwise warranty is immediately forfeited. The filter
The filter performs the function of blocking any foreign matter in the system’s plumbing circuit (shavings, machining debris, etc.)
limiting or avoiding possible problems of fouling (that decreases the heat exchange coefficient), erosion, and clogging
The clogging and fouling of the exchanger can lead to a reduction of the water flow rate and. In the case that the exchanger works
as evaporator- of the evaporation temperature: these 2 factors can cause the icing of the exchanger
The icing event leads to the bursting of the exchanger, the inlet of water into the refrigerant circuit and so the necessity of a replacement of the main components (compressors, filters, expansion valves,. Etc.) and an accurate washing of components as
refrigerant pipes, coils, etc., practically the rebuilding nearly complete of the refrigerant circuit.
The filter must be maintained clean: this is so necessary verify the cleanness after the unit installation and checking periodically
the state.
Protection devices
Standard supply includes a differential pressure switch situated between the water inlet and outlet of the heat exchanger to avoid
freezing if the water flow stops for any reason.
Activation is calibrated for a 80 mbar ±5 Δp, while resetting occurs with a Δp of 105 mbar ±5.
The differential pressure switch opens the contact and shuts down the compressors when the water flow ratey decreases and Δp ≤
80 mbar ±5.
The differential pressure switch closes and therefore the unit can restart when the water flow rate increases and Δp ≥ 105 mbar ±5.
• Standard supply includes an antifreeze heater placed between the external thermal insulation and the shell of the exchanger and
controlled by the main electronic controller of the unit in order to protect the evaporator full of water (but not the pipes) from the winter
icing when the unit is in stand-by mode. The exchanger is protected down to an outdoor air temperature of -20°C.
NOTE the antifreeze protection only worlk if the unit is electrically connected the standby period.
It is recommended to install a water paddle flow switch at the water inlet of the unit (it can be supplied as accessory or option): the
water paddle flow switch has to be electrically wired in series with the differential pressure switch.
It is mandatory to calibrate the trip out of the water paddle flow switch at a water flow rate value higher than the minimum water flow
rate admissible for the exchanger (re. section Pressure Drop).
Tips for a successful installation
For a correct design and installation of the hydraulic plant comply the local laws governing safety matters and sound…
The following information is suggestion for a correct installation of the unit:
• Before connecting the unit to the system wash adequately the pipes using clean water, filling and emptying and cleaning the filters.
Only after that proceed connecting the unit to the system; this operation is crucial to ensure proper start-up without the need to have
repeated stops to clean the filter, with the possible risk of damage to heat exchangers and other components.
• Check by qualified personnel the quality of the water or of the mixture used; avoid the presence of inorganic salts, biological load
(seaweeds, etc.) suspended solids, dissolved oxygen and the pH. Water with inadequate characteristics can cause a pressure drop
increase due to a rapid fouling of the filter, energy efficiency decrease and corrosive symptom increase that can damage the unit.
• The pipes must have the least possible number of bends to minimize load losses and must be adequately supported in order to
prevent the connections of the unit from being excessively stressed.
• Install on-off valves near components that need to be serviced to isolate them when maintenance work needs to be done and to
allow them to be replaced without having to discharge the system.
• Before isolating the pipes and charging the system, carry out preliminary inspections to make sure that there are no leaks.
• Isolate all the chilled water pipes to prevent condensation from forming along the pipes themselves. Make sure that the material
used is the steam barrier type, failing this, cover the insulation with an appropriate protection. Also make sure that the air venting
valves can be accessed through the insulation.
• Do not forget to install or at least allow for the installation of pressure and temperature reading instruments on the inlet and outlet
parts of the hydraulic circuit. These instruments will allow you to monitor the operation of the system.
• The circuit can be kept under pressure by means of an expansion tank and a pressure reducer. A plant filling unit can also be used in
order to automatically charge the system and keep it at the desired pressure if it drops below a certain pressure value. Install manual
or automatic values in the highest point of the system to eliminate air from the circuit.
Fit manual or automatic valves at the highest point in the circuit in order to vent air from the circuit.
• the water connections are Victaulic-type joints for hooking up to the unit.
The joints allow the pipes to expand due to changes in temperature and in addition the elastomer gasket and the specified play help
insulate and absorb noise and vibration.
• If vibrations dampers are installed under the unit, it is recommended to use flexible couplings before and after the water circulation
pump and near the unit.
• Install on the outlet of the unit a suitable valve able to regulate the water flow.
• Avoid that the weight of the connection pipes pushes on the hydraulic connections of the unit using approved supports.
Check that plant components are suitable to bear the maximum static pressure (it depends on the height of the building).
45
HYDRAULIC CONNECTIONS
Water component for corrosion limit
pH
SO4 --
7.5 ÷ 9.0
-
< 100
ppm
HCO3 -/ SO4 --
>1.0
Total hardness
8.0 ÷ 15.2
°F
Cl-
< 50
ppm
PO4 3-
< 2.0
ppm
NH3
< 0.5
ppm
Free Chlorine
< 0.5
ppm
Fe3+
< 0.5
ppm
Mn++
< 0.05
ppm
CO2
< 50
ppm
H2S
< 50
ppb
Temperature
< 65
°C
Oxygen content
< 0.1
ppm
Precautions for the Winter
The water could freeze and damage the exchanger of the unit and other parts of the system during the winter period, if the system
was to remain at a standstill. This problem can be obviated in 3 different ways:
1. Drain the system completely, taking care to drain the plate exchanger (in order to drain the unit’s piping system completely, open
the water drain ball valves and the air vent valves, open any valves closed).
2. Operate with glycol water taking account, depending on the % of glycol, of the factor of correction of the refrigerating capacity,
power input, water flow
IN rate and losses of head (see tableINon following page)
3. If it is certain that the unit will always be powered throughout the winter, the unit is able to protect itself from freezing, down to a
temperature
of -20°C: this is possible thanks to an antifreeze electric heating element installed on the plate exchanger and intelliA
gent control of the water pump that must be governed by the microprocessor board (see the “Electric Connections” section).
If the unit is fitted with a Storage tank, solution no. 3 requires installing the tank antifreeze heating element accessor.
OK
Filter cleaning
OUT
OUT
After the filter cleaning pay attention to reinstall in the correct position the filtering mesh (fig.1).
Fig. 1
IN
OK
OUT
CORRECTLY INSTALLED
IN
NO
OUT
NO
OUT
FILTER MESH
46
Fig. 2
IN
FILTER MESH
NOT CORRECTLY INSTALLED
Fig. 3
Minimum space for
mesh extraction
Filter size
A
(mm)
DN 50
116
DN 65
122
DN 80
129
DN 100
168
DN 125
258
DN 150
219
DN 200
284
IN
A
OUT
HYDRAULIC CONNECTIONS
Basic diagram Standard Unit VB [COLD WATER CIRCUIT]
The following figures represent connections to the plant exchanger.
IMPORTANT: There must be a constant flow of water to the exchanger.
PLANT
EXCHANGER
Units with integrated pump
PLANT
EXCHANGER
Units without integrated pump or pump integrated
into the primary circuit
Basic diagram for units with Desuperheater [HOT WATER CIRCUIT]
RECOVERY
EXCHANGER
The basic diagram given is valid for VD-VR version
The figure below shows the basic diagram of the portion of the system with the heat exchanger used for
recovering partially heating power that would otherwise be disposed of in the air.
Recovered hot
water tank
(1): Component not required if the unit is equipped with the “Water storage tank” accessory. Installation of this accessory is recommended if the unit
is without it.
I = User system
Pressure gauge
Pump
Air vent valve
Thermometer
Filter
Safety valve
On-off and/or water
flow rate regulating valve
Tank
Coupling
Monitoring electronics
(governor)
Expansion tank
Water filling unit
B
A
AB
Three-way driven valve
Recovery water flow inlet probe
47
HYDRAULIC CONNECTIONS
Air vent and water drain
On the plumbing circuit feeding the unit, especially when equipped with the Victaulic connection kit, the installer must fit an appropriate number of valves (manual or automatic) at the top of the circuit in order to vent any air in the plumbing system. In the
same way, he must install a water drain valve in order, when necessary, to drain the unit’s plate exchanger completely (especially
during the winter in order to prevent freezing that would seriously jeopardize the operation of the unit). For units with the “Pumping
module” option there is an air vent valve on the top pipe (water inlet) and a water drain valve on the bottom pipe (water outlet). See
“Accessories and options” section.
Piping connection with Victaulic couplings and Water flow switch
It is composed of two Victaulic type quick couplers (Fig. 1-A) comprehensive
of union (Fig. 1-B) and seal not installed (supplied with the unit). The unions
are supplied to be welded on the end. Here we give the instructions to follow
for installing the quick couplers.
Do not weld the pipe with Victaulic connection joint attacked since the gasket
may be damaged irreparably.
WATER FLOW
SWITCH
Note:
Supplied as optional (see “ACCESSORIES AND OPTIONAL EQUIPMENT “).
to be welded/thread
Valve regulating diagram valve
To prevent problems from occurring when the unit is started with very cold water, you are strongly advised to install a mixer valve as
shown in the diagram.
The valve must be regulated to suit the temperature at which the water flows into the desuperheater (see diagram): the graph on
the right shows the type of adjustment to use.
Water connections must be performed carefully as for the evaporator (filter, circuit washing, etc.)
Perform all necessary interventions to avoid RISK OF FREEZING (tubes insulation, emptying of circuit, addition of glycol, antifreeze resistances).
Water temperature can reach high temperatures (up to 100°C for VD unit, up to 65°C for VR unit), therefore:
• avoid RISK OF BURNS by adopting the necessary precautions (insulations of tubes, temperature detecting station on water if the
sanitary use is foreseen, etc.).
• install safety valves and specifically dimensioned expansion tanks in the hydraulic circuit.
WATER FLOW
RATE
Recovery INLET
temperature
48
HYDRAULIC CONNECTIONS
ISO-G
1”
11/4”
11/2”
2”
21/2”
3”
4”
5”
6”
8”
DN(mm)
25
32
40
50
65
80
100
125
150
200
EXTERNAL DIAMETER OD(mm)
33.7
42.4
48.3
60.3
76.1
88.9
114.3
139.7
168.3
219.1
A
15.875
15.875
15.875
15.875
15.875
15.875
15.875
15.875
15.875
19.050
B
7.137
7.137
7.137
8.738
8.738
8.738
8.738
8.738
8.738
11.913
O
30.226
38.989
45.085
57.150
72.260
84.938
110.084
135.500
163.957
214.401
1) Pipe groove inspections
Check the depth and diameter of the grooves and their distance from the pipe ends. Make sure that the
work has been carried out with care and that the end surface of the pipes is smooth and not ovalized.
Make sure that there are no notches, burrs or other imperfections that could impair the tightness.
Groove dimensions in mm A=16-B=8-C=57.2-D=1.6
D
1.600
1.600
1.600
1.600
1.981
1.981
2.108
2.134
2.159
2.337
T
1.651
1.651
1.651
1.651
2.108
2.108
2.108
2.769
2.769
2.769
T
2) Checking the seal and relative lubrication
Make sure that the type of seal used is compatible with the nature and temperature of the fluid. Signal
green EPDM seals are used.
Apply a film of grease to the seal: on the back, on the side flanks and on the inner lips that contact the
pipe. Work in conditions of the utmost cleanliness as particles of dirt could damage the seal. Always
and only use synthetic grease. Greasing makes it easier to fit the seal on the pipe and improves the
tightness. It also allows the seal to slide within the connection, avoiding tensions and projections near
the bolts.
3) How to fit the seal
Fully insert the seal into the end of a pipe. Make sure that the seal lips adhere to the pipe itself.
4) Alignment
Align the pipes and move their ends near to each other. Now push the seal, centering it on the two pipe
ends. The seal must remain inside the grooves.
5) Joint assembly
Remove one bolt and loosen (without removing) the other one. Seat part of the body of the joint at the
bottom, between the pipe ends, inserting and edges of the grooves. Now seat the other part of the
body at the top, on the two ends, and close the joint. Make sure that the parts of the body of the joint
touch each other.
6) Nut torquing
Fit the previously removed bolt back in place and tighten both nuts by hand. Now torque them with the
relative wrench, tightening them alternately a few turns.
WARNING:
If one nut is fully tightened at a time, the seal could slip between the jaws of the opposite side of the
joint.
49
MAXIMUM VOLUME OF WATER
Maximum volume of water in the system with wet module
Before filling the water system, it is advisable to consider the type of installation in question, i.e. check the difference in level between
the wet module and user. The following table gives the maximum water content of the water supply system in liters, depending on
the capacity of the standard expansion vessel supplied and the pressure at which it should be charged. The expansion vessel setting
must be regulated to suit the maximum positive difference in level of the user.
Maximum setting value 600 kPa.
With a positive H of more than 12.25 meters, calculate the expansion vessel precharge value in kPa using the formula below:
Expansion vessel precharge= [H/10.2+0.3] x100 = [kPa]
NOTE. In case A, make sure that the user’s lowest point is able to withstand the global pressure.
Tab.1
Model
Expansion vessel volume (liters)
Thermal expansion of water (10-40°C)
Thermal expansion of water (10-60°C)
Expansion vessel
H (metri)
pressure (kPa)
Case A
H <0
150 (standard)
0 < H < 12.25
150 (standard)
15
177
Case B
20
226
25
275
30
324
245.3 - 280.3 - 315.3
24
0.0074
0.0167
IR
IP
2085
2085
1960
1732
1505
1279
921
921
870
768
667
566
NOTE: If the unit operates with brine, calculate the real volume of the system by taking into account the corrective factors for the
volume of the system given in the table below.
Corrective factors per total maximum volume of the system with brine
% of brine
Cooling Mode
Heating Mode
0%
1,000
1,000
10%
0,738
0,855
20%
0,693
0,811
30%
0,652
0,769
U
U
U= User
50
40%
0,615
0,731
CASE B
CASE A
ELECTRICAL CONNECTIONS
General rules
The appliance must be wired in compliance with the laws in force in the country in which it is installed. The units are supplied fully wired in the factory and pre-engineered for connection to the electricity main. The electric panel is made in compliance with the technical standards in force in the
European Union.
Structure of the electric panel
All the electrical components are contained in a closed casing protected against the atmospheric agents and inspectionable by opening the front
door after removing the front panel. The door for accessing the power section is locked by the mechanism.
Access for the supply cables and earth cable (PE) is permitted through the opening on the botton of the electric panel.
The system comprises an electromechanical part consisting of the power circuit, with disconnecting device, contactors, fuses or thermal cutouts,
transformer, and another part comprising the Microprocessor control system.
NOTES: Refer to the wiring diagram supplied with the unit for the layout of the electric panel.
Electrical connections
All electrical connections must be carried out by qualified personnel in the absence of electric power. The table below gives the electrical specifications of the different constructional configurations of the units.
1) Connection to the electricity main
• Power supply line;
The machine’s power supply line must be laid by following a clearly defined route in order to make it as correct as possible any without any breaks.
Pass the line through the opening on the button of the electrical panel. Secure the line integral with the structure of the machine. Then continue
inside the panel and connect the conductors directly to the input terminals of the main disconnecting device of the machine.
• Power supply system;
The power cables of the machine’s supply line must be taken from a system of symmetrical three-phase voltages and of a separate protection
conductor.
V= 380÷415V
f= 50 Hz
An automatic switch must be installed on the supply side of the side in
order to protect against any overcurrents and indirect contacts that could
occur when the unit is operating.
It is advisable to install an automatic current limiter switch in order to
limit the effective short-circuit current in the connecting point of the unit.
This allows a protection device with a lower breaking capacity than that
required in the connection point to be sized like the main circuit-breaker
of the unit.
The line and switch must be coordinated in compliance with the current
laws governing electrical safety matters, regarding the type of installation
and environmental conditions in which the unit must operate.
• Protection conductor (ground wire):
The protection conductor from the feeder line must be connected straight
to the ground screw identified by code “PE”, which ensures the equipotential connection of all metal grounding points and structural parts of
the unit.
• Signals and data lines
Do not exceed the maximum allowed distance of the cable as shown in
the wiring diagram. Put cables away from power lines with a different
voltage or emitting electromagnetic noise, if really necessary do not to
put in parallel but only cross with these cables to 90°. Do not put cables
near equipment that can create electromagnetic interference (antennas,
speakers, radio repeaters etc ...). Any shielding of the cable must be connected to a ground without noise, while preserving the continuity across
the total length of the cable.
• Connection
Always refer to the wiring diagram supplied with the unit. Verify that the
network has characteristics corresponding to the data shown on the nameplate of the unit. Before starting work, verify that the switching device
at the start of the line power unit is open, locked and a warning sign
shown. Make the connection to the ground first that the others phase;
protect the wires using cable properly fitted. Before powering on the unit,
ensure that you have restored all the protections that were removed during work on connection.
2) Electric panel
• Protection degree:
The electric panel casing is made from sheet metal and has IP54 protection rating at the doors directly accessible from the outside. The other
parts of the casing guarantee a protection degree that is at least equivalent to IP22, as established by the current laws in force: this has been
achieved since the panel has further protection against the penetration of
solid foreign bodies and atmospheric agents thanks to the unit structure
in which it is housed.
• Starting and stopping function:
The red handle on the panel door directly acts on the main circuit-breaker. The handle also acts as a door lock since it ensures that the unit is
only powered when the door is shut. The stopping function carried out by
the main circuit-breaker is classified as type “0” since the unit is stopped
by immediately cutting off the power supply.
3) Reference standards
• The provisions established by the following Directives have been complied with to ensure the safety of the electrical products placed on the
European Union market:
- Low Voltage Directive 2006/95 EEC which also includes the following
harmonized standards:
CEI EN 60335-1 and 60335-2-40.
Classification:CEI EN 60204-1. Safety of unitry. Electrical equipment of
units. Part 1: General rules.
- Directive 2004/108/EEC concerning “Electromagnetic compatibility”.
4) User connection
Inside the electrical panel is available a user terminal where you can
have:
a) pumps start-up and safety devices
b) two user configurable inputs
c) digital Input for water paddle flow switch
d) integrative resistance output relay
e) clean contact for general alarm
f) external signal from the compressors running
Moreover, VR units contains the following terminals:
g) pumps start-up and safety devices
h) digital input for remote enable
i) digital Input for water paddle flow switch
For more details refer to the wiring diagram of the unit.
51
ELECTRICAL CONNECTIONS
Units without pumping module
UNIT
245.3
280.3
315.3
FLA
FLI
MIC
MIC SS
199
121
425
311
400 - 3+N - 50
231
137
428
313
247
148
470
351
Power supply
Unit layout
UM
V-ph-Hz
A
kW
A
A
BATCOILS
TERIA
SERTANK
BATOIO
POPUMP
MPA 22
PPUMP
OMPA 11
SCA
MBIATORE
HEAT
EXCHANGER
CP1C
CP1B
CP1A
Compressors
UNIT
245.3
CP1A
CP1B
CP1C
CP1A
CP1B
CP1C
CP1A
CP1B
CP1C
CP1A
CP1BPUMP 2
CP1C
FLA
LRA
FLI
Resistenza
avvolgimento
280.3
COIL
Power supply
61.0
61.0
61.0
287.0
TANK
287.0
287.0
38.0
38.0
38.0
0,30
0,30 PUMP 1
0,30
Single Fan AC specifications
UNIT
245.3
FLA
LRA
FLI
Single Fan EC specifications
UNIT
245.3
Power supply
FLA
LRA
FLI
52
Full load current at maximum tolerated conditions
Locked rotor current
Full load power input at maximum tolerated conditions
UM
V-ph-Hz
70.2
70.2
70.2
267.0
267.0
267.0
42.8
42.8
42.8
0,30
HEAT
0,30
EXCHANGER
0,30
280.3
CP1C
75.6
75.6
75.6
298.0
298.0
298.0
46.4
46.4
46.4
0,30
CP10,30
B
0,30
280.3
400 - 3 - 50
2,85
11,4
1,85
MIC = MIC SS = options
A
A
kW
CP1A
Ω
315.3
UM
V-ph-Hz
A
A
kW
315.3
UM
V-ph-Hz
A
A
kW
400 - 3 - 50
4,10
15,0
1,80
Power supply
NOTE:
FLA = LRA = FLI = 315.3
400 - 3 - 50
Maximum instantaneous current of the unit
Maximum instantaneous current of the unit with soft starter
ELECTRICAL CONNECTIONS
Primary-secondary pump
UNIT
245.3
280.3
315.3
8,7
87,0
4,6
400 - 3 - 50
8,7
87,0
4,6
8,7
87,0
4,6
245.3
280.3
315.3
FLA
LRA
FLI
8,7
87,0
4,6
400 - 3 - 50
8,7
87,0
4,6
10,4
116
6,3
UNIT
245.3
280.3
315.3
13,7
140
8,5
400 - 3 - 50
13,7
140
8,5
13,7
140
8,5
Power supply
FLA
LRA
FLI
Standard pump
UNIT
Power supply
High head pump
Power supply
FLA
LRA
FLI
Standard modulating pump
UNIT
245.3
Power supply
8,7
FLA
87,0
LRA
4,6
FLI
High head modulating pump
245.3
UNIT
Power supply
FLA
LRA
FLI
13,7
140
8,5
280.3
315.3
400 - 3 - 50
8,7
87,0
4,6
10,4
116
6,3
280.3
315.3
400 - 3 - 50
13,7
140
8,5
13,7
140
8,5
UM
V-ph-Hz
A
A
kW
UM
V-ph-Hz
A
A
kW
UM
V-ph-Hz
A
A
kW
UM
V-ph-Hz
A
A
kW
UM
V-ph-Hz
A
A
kW
Summary tables (total values):
Units with pumping module MP PS STD (1 or 2 pumps - primary and secondary configuration)
UNIT
245.3
280.3
400 - 3 - 50
208
240
FLA
126
142
FLI
434
437
MIC
319
322
MIC SS
Units with pumping module MP AM STD and MP SS STD (1 or 2 standard pumps)
315.3
Power supply
UNIT
245.3
256
153
478
359
280.3
315.3
Power supply
400 - 3 - 50
208
240
FLA
126
142
FLI
434
437
MIC
319
322
MIC SS
Units with pumping module MP AM HP1 and MP SS HP1 (1 or 2 high head pumps)
UNIT
245.3
258
154
480
361
280.3
315.3
Power supply
400 - 3 - 50
213
245
FLA
130
146
FLI
439
442
MIC
324
327
MIC SS
Units with pumping module MP AM STD and MP SS STD (1 or 2 standard pumps) modulating
UNIT
245.3
280.3
400 - 3 - 50
208
240
FLA
126
142
FLI
434
437
MIC
319
322
MIC SS
Units with pumping module MP AM HP1 and MP SS HP1 (1 or 2 high head pumps) modulating
261
157
483
364
315.3
Power supply
258
154
480
361
UNIT
245.3
280.3
315.3
FLA
FLI
MIC
MIC SS
213
130
439
324
400 - 3 - 50
245
146
442
327
261
157
483
364
Power supply
NOTE:
FLA = LRA = FLI = Full load current at maximum tolerated conditions
Locked rotor current
Full load power input at maximum tolerated conditions
MIC = MIC SS = options
UM
V-ph-Hz
A
kW
A
A
UM
V-ph-Hz
A
kW
A
A
UM
V-ph-Hz
A
kW
A
A
UM
V-ph-Hz
A
kW
A
A
UM
V-ph-Hz
A
kW
A
A
Maximum instantaneous current of the unit
Maximum instantaneous current of the unit with soft starter
53
R410A PROTECTION DEVICES
Protection devices HIGH PRESSURE
The unit is protected against risk of overpressure by means of 4 levels protection chain.
Each circuit is equipped with:
1) ATC (Advanced Temperature Control) if present
2) high pressure automatic switch connected to electronic controller
3) high pressure manual switch connected to compressor contactor command
4) high pressure safety valve
Protection devices technical data
LEVEL
1
2
3
4
Device
ATC
(Advanced Temperature Control)
if present
High pressure
automatic switch
High pressure
manual switch
High pressure
safety valve
Trip out (barg)
38
41.0
43.0
45.0
Trip in (barg)
28
29.5
31.0
41.0
connected to
electronic controller
electronic controller
compressor contactor command
Discharge the refrigerant
to atmosphere to reduce
the system pressure
effect
Controls the cooling
capacity shutting down
compressors
stop the compressors
and the fans of that circuit
stop the compressors
of that circuit
Discharge the refrigerant
to atmosphere to reduce
the system pressure
Automatic
YES by keyboard if the
high pressure switch has
trip-in and after the solution
of the problem that
generates the alarm
Press the button
present on the manual
pressure switch
reset *
Not necessary
CAUTION
*: For more details refers to section monitoring basic system.
CAUTION
IN CASE OF COMPRESSORS TRIP-OUT BY MANUAL RESET HIGH PRESSURE SWITCH THERE ARE NO EVIDENCES IN THE
MONITORING SYSTEM, DO NOT RESET THE PRESSURE SWITCH BEFORE YOU HAVE DONE THE FOLLOWING STEPS:
1) SHUT DOWN THE UNIT USING THE OFF BUTTON
2) THEN RESET THE HIGH PRESSURE SWITCH
Protection devices LOW PRESSURE
Protection devices DISCHARGE TEMPERATURE (if installed)
LEVEL
2
LEVEL
2
Device
Low pressure
automatic switch
Device
high temperature thermostat
Trip out (barg)
4 bar (IR, IP unit in cooling mode)
2 bar (BR,BP, IP unit in heating mode)
Trip out
135°C
Trip in (barg)
6 bar (IR, IP unit in cooling mode)
4 bar (BR,BP, IP unit in heating mode)
Trip in
120°C
connected to
electronic controller
connected to
electronic controller
effect
stop the compressors
of that circuit
effect
stop the single compressor
reset *
YES by keyboard if the low pressure switch has
trip-in and after the solution of the problem that
generates the alarm
reset *
YES by keyboard after the
solution of the problem that
generates the alarm
*: For more details refers to section monitoring basic system.
54
PPSS
TC
PPSS
PBA
PBA
55
IN
EEV
SA
PPS
PPS
PPS
IDL
IDL
FD
SP / FT***
PPSSPPSS
IN
IN
EEV EEV
IN
MBP* MBP*
PPS PPS
* : Optional
* * : Do not install if present tp accessory
* * * : One or the other depending on the unit
:insulated pipes for BR unit
MBP*
FD
PPS
IDL
CP1A
SL** SL**
TPL* TPL*
ptional
* * : Accessori
: Accessori
optional
optional
re se presente TPL ** ** : Non
: Non
montare
montare
se presente
se presente
TPLTPL
PPS
TP
RL*
BA BA
V
V
LEGENDA / LEGEND
LEGENDA
LEGENDA
/ LEGEND
/ LEGEND
Refrigerant flow diagram IR VB
PDW
PDW
SP / FT***
SP / FT***
PDW
/
Rev .
A3
Formato / Size
Materiale / Material
/
Scala / Scale
A3A3
/
/
25/07/12
Cavaler A.
Codice / Part . n°
/
Codice grezzo / Basic number
Sostituisce
il / Replaces the
Descrizione
Descrizione
/ Description
/ Description
ISO 2768
Ceresato R.
Rev .
Dimensioni
/ Dimensions
/ Dimensions
Scala / Scale
Scala /TOLLERANZE
Scale Dimensioni
NON INDICATE: GRADO DI PRECISIONE
SECONDO LE NORME ISO 2768
/
Peso Netto / Net Weight
Peso Lordo
Peso/ Gros
LordoWeight
/ Gros Weight
Peso Netto
Peso
/ Net
Netto
Weight
/ Net Weight
General geometric tolerancing
Data
Descrizione
/ Date
Descrizione
/ Description
Disegnato
/ Description
/ Drawn by Verificato / Checked by
Trattamento
Trattamento
/ Treatment
/ Treatment
Codice /Codice
Part . n°/ Part . n°/
Codice grezzo
Codice/grezzo
Basic number
/ Basic
Sostituisce
Sostituisce
il / Replaces
il / Replace
the
TOLLERANZE
TOLLERANZE
NON INDICATE:
NON INDICATE:
GRADOGRADO
DI PRECISION
DI PRE
ISO 2768
ISO 2768
SECONDO
SECONDO
LE NORME
LE NORME
/
/
GeneralGeneral
geometric
geometric
tolerancing
tolerancing
ISO 2768
ISO 2768
25/07/12
25/07/12Ceresato
Ceresato
R. R.
Cavaler
Ca
Data / Date
Data / DateDisegnato
Disegnato
/ Drawn /by
Drawn
Verificato
by Verifica
/ Che
SCHEMA FRIGORIFEROSCHEMA
SCHEMA
FRIGORIFERO
FRIGORIFERO
RTA IR 245.3÷315.3 R410A
RTA
RTA
IRFIR
R410A
R410ADSF
DSF
DS
0245.3÷315.3
015245.3÷315.3
0
DSFDSF
DS
0 0F
1500 150
Descrizione / Description
Peso Lordo / Gros Weight
Dimensioni
/ Dimensions
Formato
Formato
/ Size / Size
/
Rev .
/
Rev .
Descrizione / Description
Materiale
Materiale
/ Material
/ Material
Trattamento
/ Treatment
IN IN
Descrizione
Descrizione
Description
Descrizione
Description
Description
BA
BATTERIA ALETTATA
FIN
BATTERIA
AND
TUBE
ALETTATA
COIL
FIN TUBE
AND TUBE
BA BABATTERIA
ALETTATA
FIN AND
COIL COIL
CP
COMPRESSORE SCROLL
SCROLL
COMPRESSORE
COMPRESSOR
SCROLL
SCROLL
COMPRESSOR
CP CPCOMPRESSORE
SCROLL
SCROLL
COMPRESSOR
EEV
VALVOLA ESPANSIONE ELETTRONICA
ELECTRONIC
VALVOLA
ESPANSIONE
EXPANSION
ELETTRONICA
VALVE
ELECTRONIC
EXPANSION
EEV EEVVALVOLA
ESPANSIONE
ELETTRONICA
ELECTRONIC
EXPANSION
VALVEVALVE
RM*
RM* DEIDRATATORE
FD FDFILTRO
DEIDRATATORE
DRIERDRIER
FILTERFILTER
FD RM* FILTRO
DRIER
FILTRO
FILTER
DEIDRATATORE
FT FTSCAMBIATORE
FASCIO
TUBIERO
SHELLSHELL
AND TUBE
HEAT HEAT
EXCHANGER
FT
SCAMBIATORE A FASCIO TUBIERO
SHELL
SCAMBIATORE
ANDATUBE
A HEAT
FASCIO
EXCHANGER
TUBIERO
AND TUBE
EXCHANGER
IDL IDLINDICATORE
LIQUIDO
E UMIDITA'
LIQUID
AND MOISTURE
INDICATOR
IDL
INDICATORE LIQUIDO E UMIDITA'
LIQUID
INDICATORE
AND
MOISTURE
LIQUIDO
E INDICATOR
UMIDITA'
LIQUID
AND MOISTURE
INDICATOR
MAP MAP
MANOMETRO
ALTA ALTA
PRESSIONE
HIGH HIGH
PRESSURE
GAUGE
MAP
MANOMETRO ALTA PRESSIONE
HIGH
MANOMETRO
PRESSURE
GAUGE
PRESSIONE
PRESSURE
GAUGE
MBP MBP
MANOMETRO
BASSABASSA
PRESSIONE
LOW PRESSURE
GAUGE
MBP
MANOMETRO BASSA PRESSIONE
LOW
MANOMETRO
PRESSURE
GAUGE
PRESSIONE
LOW PRESSURE
GAUGE
PAA ATC*
PAA ATC*
PAA ATC*
PAA PAA
PRESSOSTATO
ALTA
PRESSIONE
RIARMO
AUTOMATICO
ATOMATIC
RESETRESET
HIGH HIGH
PRESSURE
SWITCH
PAA
PRESSOSTATO ALTA PRESSIONE RIARMO AUTOMATICO
ATOMATIC
PRESSOSTATO
RESET
ALTA
HIGH
PRESSIONE
PRESSURE
RIARMO
SWITCH
AUTOMATICO
ATOMATIC
PRESSURE
SWITCH
PPS
PPS ATC PRESSOSTATO ALTA PRESSIONE RIARMO AUTOMATICO
PPS PAA
PAA ATC
PRESSOSTATO
ALTA
PRESSIONE
RIARMO
AUTOMATICO
RESETRESET
HIGH HIGH
PRESSURE
SWITCH
FOR ATC
PAA ATC
ATOMATIC
PRESSOSTATO
RESET
ALTA
HIGH
PRESSIONE
PRESSURE
RIARMO
SWITCH
AUTOMATICO
FOR ATC ATOMATIC
ATOMATIC
PRESSURE
SWITCH
FOR
RL* RL*
FUNZIONE
ATC ATC
FUNCTION
FUNZIONE ATC
FUNCTION
FUNZIONE
FUNCTION
PAM PAM
PRESSOSTATO
ALTA
PRESSIONE
RIARMO
MANUALE
RESETRESET
HIGH HIGH
PRESSURE
SWITCH
PAM
PRESSOSTATO ALTA PRESSIONE RIARMO MANUALE
MANUAL
PRESSOSTATO
RESETALTA
HIGHPRESSIONE
PRESSURE
RIARMO
SWITCH
MANUALE MANUAL
MANUAL
PRESSURE
SWITCH
PBA PBA
PRESSOSTATO
BASSA
PRESSIONE
RIARMO
AUTOMATICO
ATOMATIC
RESETRESET
LOW PRESSURE
SWITCH
PBA
PRESSOSTATO BASSA PRESSIONE RIARMO AUTOMATICO
ATOMATIC
PRESSOSTATO
RESET
BASSA
LOWPRESSIONE
PRESSURE
RIARMO
SWITCH
AUTOMATICO
ATOMATIC
LOW PRESSURE
SWITCH
VSF
VSF VSF
PPS PPS
TP TP
PBE PBEPRESSOSTATO
BASSA
PRESSIONE
RIARMO
AUTOMATICO
EVAPORATOR
AUTOMATIC
RESETRESET
LOW PRESSURE
PBE
PRESSOSTATO BASSA PRESSIONE RIARMO AUTOMATICO
EVAPORATOR
PRESSOSTATO
AUTOMATIC
BASSA
PRESSIONE
RESET
RIARMO
LOW
PRESSURE
AUTOMATICO
EVAPORATOR
AUTOMATIC
LOW PRESSUR
EVAPORATORE
SWITCH
EVAPORATORE
SWITCH
EVAPORATORE
SWITCH
MAP*
MAP*
PDW PDW
PRESSOSTATO
DIFFERENZIALE
ACQUA
DIFERENTIAL
WATER
PRESSURE
SWITCH
PDW MAP*
PRESSOSTATO
DIFFERENZIALE ACQUA
DIFERENTIAL
PRESSOSTATO
WATER
DIFFERENZIALE
PRESSURE
ACQUA
SWITCH
DIFERENTIAL
WATER
PRESSURE
SWITCH
PPS PPS
PP PPPRESAPRESSURE
PRESSIONE
1/4"SAE
SENZASENZA
SPILLOSPILLO1/4"SAE
PRESSURE
GAUGE
WITHOUT
SCHRAEDER
1/4"SAE
PRESA PRESSIONE 1/4"SAE SENZA SPILLO
PRESA
PRESSIONE
GAUGE
WITHOUT
1/4"SAE
SCHRAEDER
PRESSURE
GAUGE
WITHOUT
SCHRAEDER
1/4"SA
PPS
PPS PPSPP
PPS PPSPRESAPRESSURE
PRESSIONE
1/4"SAE
CON
SPILLO
PRESSURE
GAUGE
WITHWITH
SCHRAEDER
1/4"SAE
PPS
PRESA PRESSIONE 1/4"SAE CON SPILLO
PRESA
PRESSIONE
GAUGE
WITH
1/4"SAE
SCHRAEDER
CON SPILLO
1/4"SAE
PRESSURE
GAUGE
SCHRAEDER
1/4"SAE
PPS PPS
PBA PBA
PPSS PPSS
PRESAPRESSURE
PRESSIONE
5/16"SAE
CON
SPILLO
PRESSURE
GAUGE
WITHWITH
SCHRAEDER
5/16"SAE
PPSS
PRESA PRESSIONE 5/16"SAE CON SPILLO
PRESA
PRESSIONE
GAUGE
WITH
5/16"SAE
SCHRAEDER
CON SPILLO
5/16"SAE
PRESSURE
GAUGE
SCHRAEDER
5/16"SAE
PPSS
PPSS
RM RMRUBINETTO
MANDATA
DISCHARGE
VALVEVALVE
RM PPSS
RUBINETTO
MANDATA
DISCHARGE
RUBINETTO
VALVE
MANDATA
DISCHARGE
PPS PPS
PBA PBA
RL RLRUBINETTO
LIQUIDO
LIQUID
VALVEVALVE
RL
RUBINETTO LIQUIDO
LIQUID
RUBINETTO
VALVE
LIQUIDO
LIQUID
OUT PAA PAAPAM PAM
OUTOUT ASPIRAZIONE
PPS
PPS TEMPERATURA
SA SASONDA
TEMPERATURA
ASPIRAZIONE
SUCTION
TEMPERATURE
PROBE
SA PPS
SONDA
SUCTION
SONDA
TEMPERATURA
TEMPERATURE
ASPIRAZIONE
PROBE
SUCTION
TEMPERATURE
PROBE
PAA
PAM
PPSSPPSS
SIW SIW
SONDA
TEMPERATURA
INGRESSO
ACQUA
WATER
INLETINLET
PROBE
SONDA TEMPERATURA INGRESSO ACQUA
WATER
SONDA
INLET
TEMPERATURA
PROBE
INGRESSO
ACQUA
WATER
PROBE
PPS PPS SIW
PPS
SL SLSONDA
LIQUIDO
LIQUID
PROBE
SL
SONDA LIQUIDO
LIQUID
SONDA
PROBE
LIQUIDO
LIQUID
PROBE
SP SPSCAMBIATORE
PIASTRE
PLATEPLATE
HEAT HEAT
EXCHANGE
SPPPS PPS
SCAMBIATORE PIASTRE
PLATE
SCAMBIATORE
HEAT
EXCHANGE
PIASTRE
EXCHANGE
PPS
PP
PP PP
PP
PP PP
SUW
SUW SUW
SUW SUW
SONDA
TEMPERATURA
USCITA
ACQUA
WATER
OUTLET
PROBE
SUW
SONDA TEMPERATURA USCITA
ACQUA
WATER
SONDA
OUTLET
TEMPERATURA
PROBE
USCITA
ACQUA
WATER
OUTLET
PROBE
SA SA
TP TPTRASDUTTORE
PRESSIONE
PRESSURE
TRANSDUCER
TP CP1C
TRASDUTTORE PRESSIONE
PRESSURE
TRASDUTTORE
TRANSDUCER
PRESSIONE
PRESSURE
TRANSDUCER
CP1B
CP1B
CP1B
CP1CCP1A
CP1C
CP1A
TC TC
TPL TPLTRASDUTTORE
PRESSIONE
DEL LIQUIDO
LIQUID
PRESSURE
TRANSDUCER
TPL
TRASDUTTORE PRESSIONE DEL LIQUIDO
LIQUID
TRASDUTTORE
PRESSURE
PRESSIONE
TRANSDUCER
DEL LIQUIDO
LIQUID
PRESSURE
TRANSDUCER
TC TCTRONCHETTO
PIPE FOR
FILLING
TC
TRONCHETTO CARICA
PIPE
TRONCHETTO
FORCARICA
REFRIGERANT
CARICA FILLING
PIPEREFRIGERANT
FOR REFRIGERANT
FILLING
IDL IDL
SICUREZZA
CIRCUITO
FRIGORIFERO
REFRIGERANT
SAFETY
VALVEVALVE
VSF
VALVOLA SICUREZZA CIRCUITO FRIGORIFERO VSF VSFVALVOLA
REFRIGERANT
VALVOLA
SICUREZZA
SAFETY
CIRCUITO
VALVE
FRIGORIFERO
REFRIGERANT
SAFETY
SIW SIW
SIW
V
FAN FAN
V
VENTILATORE
VVENTILATORE
FAN
VENTILATORE
PPS
PPS
PPS
BA
V
REFRIGERANT FLOW DIAGRAM
SC
VU
IDL
IDL
SC
VU
VU
TC
FD
MBP*
VU
PPS
FD
MBP*
PPSS
PBA
PBA
PPS
PBA
PPSS
PPS
PPS
TC
SEP
IN
INPBA
TP
PPS
PPS
SA
PPS
IDL
CP1A
PPS
SEP
PPS
SA
PP
IDL
PPS
PPS
PP
CP1C
PPS
PAM
VSF
PPS
PPS
PPS
PPS
CP1C
PPS
IN
PPS
PPSS
MAP*
OUT
PAA ATC*
PPSS PPS
PPS
MAP*
RM*
VIC
PAA ATC*
PPS
VIC
PPS
CP1B
PAA
PP
PP
PPS
VSF
PAM
CP1B
PAA
CP1A
* : Optional
* * : Do not install if present tp accessory
* * * : One or the other depending on the unit
:insulated pipes for BP unit
PPSS
IDL
SL**
EEV
IN
PPS
TP
PPS
PPSS
RL*
: Accessori optional
: Non montare se presente TPL
: Uno o l'altro a seconda del modello di macchina
*
: Accessori
: Tubazioni
isolate peroptional
BP
PPSS
EEV
SL**
TPL*
IDL
PPS
RM*
BA
Rev .
A3
Formato / Size
Materiale / Material
/
IN
SIW
SUW
OUT
PPS
PPS
PDW
LEGENDA / LEGEND
Rev .
Rev .
/
Scala / Scale
Descrizione
Descrizione // Description
Description
Peso
Peso Lordo
Lordo // Gros
Gros Weight
Weight
Cavaler A.
C
Peso
Peso Netto
Netto // Net
Net Weight
Weight
Foglio / Sheet
DSF
DS F00151Codice
Codice grezzo
grezzo // Basi
Basi
TOLLERANZE
TOLLERANZE NON
NON INDICATE:
INDICATE: GRADO
GRADO DI
DI PR
P
ISO 2768
2768
SECONDO
SECONDO LE
LE NORME
NORME ISO
Codice grezzo / Basic number
//
General
General geometric
geometric tolerancing
tolerancing
ISO
ISO 2768
2768
Codice / Part . n°
/
Rev .
Sostituisce
Sostituisce ilil // Repla
Repla
25/07/12
Ceresato R.
Sostituisce il / Replaces the
Ceresato R.
Disegnato / Drawn by Verificato / Checked by
TOLLERANZE NON INDICATE: GRADO DI PRECISIONE
SECONDO LE NORME ISO 2768
/
Data
Data // Date
Date
Disegnato
Disegnato // Drawn
Drawn by
by Verifi
Verifi
General geometric tolerancing
ISO 2768
25/07/12
Data / Date
PIPE FOR REFRIGERANT FILLING
REFRIGERANT SAFETY VALVE
FAN
CHECK VALVE
SCHEMA FRIGORIFERO
RTA IP 245.3÷315.3 R410A
/
Scala
Scala // Scale
Scale
Descrizione / Description
Dimensioni
Dimensioni // Dimensions
Dimensions
Descrizione
Descrizione
Description
Peso Lordo / Gros
Weight // Description
Peso Netto / Net Weight
Trattamento
Trattamento // Treatment
Treatment
Dimensioni / Dimensions
Descrizione / Description
Trattamento / Treatment
TRONCHETTO CARICA
VALVOLA SICUREZZA CIRCUITO FRIGORIFERO
VENTILATORE
VALVOLA UNIDIREZIONALE
i migliori gradi centigradi
A3
Formato
Formato // Size
Size
Materiale
Materiale // Material
Material
//
SIW
TC
VSF
V
VU
LEGENDA / LEGEND
Descrizione
Description
BA
BATTERIA ALETTATA
FIN AND TUBE COIL
CP
COMPRESSORE SCROLL
SCROLL COMPRESSOR
EEV
VALVOLA ESPANSIONE ELETTRONICA
ELECTRONIC EXPANSION VALVE
FD
FILTRO DEIDRATATORE
DRIER FILTER Description
Descrizione
FT
SCAMBIATORE
A FASCIO ALETTATA
TUBIERO
SHELL AND TUBE
BA
BATTERIA
FINHEAT
AND EXCHANGER
TUBE COIL
IDL
INDICATORE
E UMIDITA'
LIQUID AND MOISTURE
INDICATOR
CP LIQUIDO
COMPRESSORE
SCROLL
SCROLL COMPRESSOR
MAP
MANOMETRO
ALTA PRESSIONE
HIGH PRESSURE
GAUGE EXPANSION VALVE
EEV
VALVOLA
ESPANSIONE ELETTRONICA
ELECTRONIC
MBP
MANOMETRO
BASSA PRESSIONE
LOW PRESSUREDRIER
GAUGE
FD
FILTRO
DEIDRATATORE
FILTER
PAA
PRESSOSTATO
ALTA PRESSIONE
RIARMOTUBIERO
AUTOMATICO
ATOMATIC RESET
HIGH
PRESSURE
SWITCH
FT
SCAMBIATORE
A FASCIO
SHELL
AND
TUBE HEAT
EXCHANGER
PAA ATC PRESSOSTATO
ALTA PRESSIONE
RIARMO
AUTOMATICO
ATOMATIC RESET
HIGH
PRESSURE
SWITCH
FOR ATC
IDL
INDICATORE
LIQUIDO
E UMIDITA'
LIQUID
AND
MOISTURE
INDICATOR
FUNZIONE
ATC
FUNCTION
MAP
MANOMETRO ALTA PRESSIONE
HIGH PRESSURE GAUGE
PAM
PRESSOSTATO
ALTA PRESSIONE
RIARMO
MANUALE
MANUAL RESET
HIGH
PRESSURE
SWITCH
MBP
MANOMETRO
BASSA
PRESSIONE
LOW
PRESSURE
GAUGE
PBA
PRESSOSTATO
BASSA PRESSIONE
AUTOMATICO
ATOMATIC RESET
LOW PRESSURE
SWITCH
PAA
PRESSOSTATO
ALTARIARMO
PRESSIONE
RIARMO AUTOMATICO
ATOMATIC
RESET HIGH
PRESSURE SWITCH
PBE
PRESSOSTATO
BASSA PRESSIONE
AUTOMATICO
EVAPORATOR ATOMATIC
AUTOMATICRESET
RESETHIGH
LOWPRESSURE
PRESSURESWITCH FOR
PAA ATC PRESSOSTATO
ALTARIARMO
PRESSIONE
RIARMO AUTOMATICO
EVAPORATOREFUNZIONE ATC
SWITCH
FUNCTION
PDW
PRESSOSTATO
DIFFERENZIALEALTA
ACQUA
DIFERENTIAL WATER
PRESSURE
SWITCH
PAM
PRESSOSTATO
PRESSIONE RIARMO MANUALE
MANUAL
RESET HIGH
PRESSURE SWITCH
PP
PRESAPBA
PRESSIONE
1/4"SAE SENZA
SPILLO
PRESSURE GAUGE
WITHOUT
SCHRAEDER
1/4"SAESWITCH
PRESSOSTATO
BASSA
PRESSIONE RIARMO AUTOMATICO
ATOMATIC
RESET
LOW PRESSURE
PPS
PRESAPBE
PRESSIONE
1/4"SAE CON
SPILLO
PRESSURE GAUGE
WITH SCHRAEDER
1/4"SAE
PRESSOSTATO
BASSA
PRESSIONE RIARMO AUTOMATICO
EVAPORATOR
AUTOMATIC
RESET LOW PRESSU
PPSS
PRESA PRESSIONE
5/16"SAE CON SPILLO
PRESSURE GAUGE
WITH SCHRAEDER 5/16"SAE
EVAPORATORE
SWITCH
RM
RUBINETTO
DISCHARGE VALVE
PDW MANDATA
PRESSOSTATO DIFFERENZIALE ACQUA
DIFERENTIAL WATER PRESSURE SWITCH
RL
RUBINETTO
LIQUID VALVE PRESSURE GAUGE WITHOUT SCHRAEDER 1/4"S
PP LIQUIDO
PRESA PRESSIONE 1/4"SAE SENZA SPILLO
SA
SONDAPPS
TEMPERATURA
ASPIRAZIONE
SUCTION
TEMPERATURE
PRESA PRESSIONE 1/4"SAE CON SPILLO
PRESSURE PROBE
GAUGE WITH SCHRAEDER 1/4"SAE
SC
RICEVITORE
LIQUIDO
LIQUID RECEIVER
PPSS DIPRESA
PRESSIONE 5/16"SAE CON SPILLO
PRESSURE GAUGE WITH SCHRAEDER 5/16"SAE
SEP
SEPARATORE
DI
LIQUIDO MANDATA
LIQUID SEPARATOR
RM
RUBINETTO
DISCHARGE VALVE
SIW
SONDARL
TEMPERATURA
INGRESSO
WATER INLET PROBE
RUBINETTO
LIQUIDOACQUA
LIQUID VALVE
SL
SONDASA
LIQUIDO
LIQUID PROBESUCTION TEMPERATURE PROBE
SONDA TEMPERATURA ASPIRAZIONE
SP
SCAMBIATORE
PIASTRE DI LIQUIDO
PLATE HEAT EXCHANGE
SC
RICEVITORE
LIQUID RECEIVER
SUW
SONDASEP
TEMPERATURA
USCITA
ACQUA
WATER OUTLETLIQUID
PROBESEPARATOR
SEPARATORE
DI LIQUIDO
TP
TRASDUTTORE
PRESSIONE
SIW
SONDA
TEMPERATURA INGRESSO ACQUA PRESSURE TRANSDUCER
WATER INLET PROBE
TPL
TRASDUTTORE
PRESSIONE
DEL LIQUIDO
LIQUID PRESSURE
TRANSDUCER
SL
SONDA
LIQUIDO
LIQUID
PROBE
TC
TRONCHETTO
CARICA
PIPE FOR REFRIGERANT
FILLING
SP
SCAMBIATORE PIASTRE
PLATE HEAT
EXCHANGE
VSF
FRIGORIFERO
REFRIGERANT WATER
SAFETY VALVE
SUWSICUREZZA
SONDACIRCUITO
TEMPERATURA
USCITA ACQUA
OUTLET PROBE
SUW VALVOLA
V
VENTILATORE
FAN
TP
TRASDUTTORE PRESSIONE
PRESSURE TRANSDUCER
VU
VALVOLA
CHECK VALVE LIQUID PRESSURE TRANSDUCER
TPL UNIDIREZIONALE
TRASDUTTORE PRESSIONE DEL LIQUIDO
Refrigerant flow diagram IP VB
*
**
***
TPL*
PPSS
RL*
V
SP / FT***
BA
PDW
56
SP / FT***
V
REFRIGERANT FLOW DIAGRAM
MAIN CONTROLLER
The unit is managed by a microprocessor controller to which
all the loads and control devices are connected by means of a
terminal block.
UNIT
VB - VD - VR
COMP.
SB655
IR
IP
x
x
SE655 XVD420
x
x
x
x
x = Present
- = Not present
SB655 - main controller
SE655 - expansion board
XVD420 - electronic expanion valve driver
The user interface comprises a display and four buttons with which
it is possible to show and possibly modify all the unit’s operation
parameters. The interface, located in the front part of the unit and
accessible from the outside, is protected by a transparent plastic door.
A remote control having all the same functions as the interface fitted
on the unit is available as an accessory.
Every button provides for :
- a direct function :
indicated on the button itself and
obtained by pressing the button
- an associated function : indicated on the front of the instrument at
the corresponding button and obtained
by prolonged pressing (3 seconds) of
the button
- a combined function : obtained by pressing 2 buttons at the
same time
mode
°C
Prg
1
2
3
4
disp
Main controller
ON/OFF - STAND-BY OF THE UNIT: see paragrah “Functions
available for the user - ST-BY of the unit”.
Inputs and outputs
Analog input
Analog inputs MAIN CONTROLLER (SB655)
DESCRIPTION
CHARACTERISTICS
AI1
water inlet probe plant exchanger
NTC temperature sensor (-50°C ÷ 99°C)
AI2
AI3
water outlet probe plant exchanger
liquid probe
NTC temperature sensor (-50°C ÷ 99°C)
NTC temperature sensor (-50°C ÷ 99°C)
AI4
outside air probe / remote ST-BY - S/W.- demand limit-economy
NTC temperature sensor (-50°C ÷ 99°C) / digital input
AI5
see AI5 on “digital inputs”
configured as digital input
- Input AI4 is factory-set as not enabled, if present SND accessory, input AI4 is pre-set by factory. Its configuration for specific use must be carried
out at the time of installation according to the needs of the moment, modifying the configuration by parameter.
- Input AI5 is factory-set as neutral and its configuration for specific use must be carried out at the time of installation according to the needs of the
moment, modifying theconfiguration by parameter.
Modification and parameter configuration operations must only be carried out by an authorised service centre or by competent personnel.
Analog inputs EXPANSION BOARD (SE655)
DESCRIPTION
CHARACTERISTICS
AI1
Recovery water inlet probe exchanger
NTC temperature sensor (-50°C ÷ 99°C)
AI2
Recovery water outlet probe exchanger
NTC temperature sensor (-50°C ÷ 99°C)
57
MAIN CONTROLLER
Digital input
Digital inputs MAIN CONTROLLER (SB655)
DESCRIPTION
CHARACTERISTICS
DI1
Thermal switch compressor 1 – thermostatted delivery 1 –high
pressure switch
Digital input with voltage-free contact
DI2
Thermal switch compressor 2 –thermostatted delivery 2 – high
pressure switch
Digital input with voltage-free contact
DI3
Thermal switch compressor 3 –thermostatted delivery 3 – high
pressure switch
Digital input with voltage-free contact
DI4
Low pressure switch
Digital input with voltage-free contact
DI5
Sequence meter + fan thermal switch + EEV driver alarm
Digital input with voltage-free contact
DI6
Differential pressure switch + external paddle flow switch
Digital input with voltage-free contact
AI5-IN DIG Remote ST-BY - S/W.- demand limit-economy
Analog input configured as digital
Recovery digital inputs EXPANSION BOARD (SE655)
DESCRIPTION
CHARACTERISTICS
DI1E
Recovery ON-OFF Enable
Digital input with voltage-free contact
DI2E
Recovery differential pressure switch + paddle flow switch
Digital input with voltage-free contact
DI3E
Recovery thermal switch pump 1
Digital input with voltage-free contact
DI4E
Plant thermal switch pump 1
Digital input with voltage-free contact
DI5E
Plant thermal switch pump 2
Digital input with voltage-free contact
Note for input DI5 thermal switch pump 2.
If only one pump is used and only one thermal switch is required, ID5 can be used as an additional multiconf. input for Remote ST-BY - S/W.- demand
limit - economy.
In this way it is possible to have both the
- remote ST-BY, and
- S/W - demand limit – economy
- External probe
DI5 is factory-configured as pump 2 thermal switch. To modify the configuration, refer to the section “configurable inputs setting”.
Analog output
Analog outputs MAIN CONTROLLER (SB655)
DESCRIPTION
CHARACTERISTICS
AO4
Fans
signal 0-10V for control of three-phase fans in phase cut
AO5
Modulating plant pump
signal 4...20mA for inverter control pump
Digital output
Digital outputs MAIN CONTROLLER (SB655)
DESCRIPTION
CHARACTERISTICS
DO1
Compressor 1
2A resistive relays - 230Vac
DO2
Compressor 2
2A resistive relays - 230Vac
DO3
Compressor 3
2A resistive relays - 230Vac
DO4
Reverse cycle valve
2A resistive relays - 230Vac
DO5
Antifreeze resistance – support 1st step
Open collector - 12Vcc max 35mA
DO6
Resistance support 2nd step
2A resistive relays - 230Vac
Digital outputs EXPANSION BOARD (SE655)
CHARACTERISTICS
DESCRIPTION
DO1E
ON-OFF fans
2A resistive relays
DO2E
Recovery pump 1
2A resistive relays
DO3E
Plant pump 1
2A resistive relays
DO4E
Plant pump 2
2A resistive relays
DO5E
Recovery valve
Open collector - 12Vcc max 35mA
DO6E
Alarm
2A resistive relays
58
MAIN CONTROLLER
Main controller SB655 technical data
Description
Power supply voltage
Power supply frequency
Power
Insulation class
Protection rating
Ambient operating temperature
Ambient operating humidity (non-condensing)
Ambient storage temperature
Ambient storage humidity (non-condensing)
Typical
12-24 V~
50 Hz / 60 Hz
6 VA
2
Frontal IP65
25 °C
30 %
25 °C
30 %
Minimum
10,8-21,6 V~
-10 °C
10 %
-20 °C
10 %
Maximum
13,2-26,4 V~
60 °C
90 %
85 °C
90 %
Typical
12-24 V~
50 Hz / 60 Hz
5 VA
2
Frontal IP0
25 °C
30 %
25 °C
30 %
Minimum
10,8-21,6 V~
-10 °C
10 %
-20 °C
10 %
Maximum
13,2-26,4 V~
60 °C
90 %
85 °C
90 %
Expansion board SE655 technical data
Description
Power supply voltage
Power supply frequency
Power
Insulation class
Protection rating
Ambient operating temperature
Ambient operating humidity (non-condensing)
Ambient storage temperature
Ambient storage humidity (non-condensing)
User interface
Button
Direct function
UP
DOWN
ESC
Associated function
Increase value of selected parameter
Scroll menu up
Decrease value of selected parameter
Scroll menu down
Go to menu higher level without saving the modification
Manual defrost
-
-
mode
Access the
“Operation mode” menu
(1)
SET
Go to menu higher level
and save the modification
Go to menu lower level
Access the “Status” menu
disp
Changing the
display value
TUTTI
Alarm deactivation
-
-
Button
Combined function
+
UP
+
DOWN
+
ESC
+
SET
NOTA:
1): key for unit on/off with mode selection (see paragrah “Functions
available for the user - ST-BY of the
unit”).
Manual reset
Access the “Programming”
menu
59
3
MAIN CONTROLLER
Display
88:8.8
The following are shown in normal display :
Main controller
• unit outlet water temperature (in degrees Celsius with decimal point)
• alarm code, if at least one is activated (in case of several alarms the code of the first according to the Table of Alarms is displayed)
Electronic expansion valve controller
• actual superheating value (in degrees Celsius with decimal point)
• alarm code, if at least one is activated (in case of several alarms the code of the first according to the Table of Alarms is displayed)
In menu mode the display depends on its position (see menu structure).
Operation status and
modes
Icon
Description
Colour
On fixed
On flashing
Allarm
Red
Alarm in progress
Alarm deactivated
Heating
Green
Heating mode
from keyboard
Heating mode
from remote
Cooling
Green
Cooling mode
from keyboard
Cooling mode
from remote
Stand by
Green
Standby
from keyboard
Standby
from remote
Defrost
Green
Defrost in progress
-
Verde
non utilizzato not used
-
Clock
Red
Time display
format 24.00
Time setting
format 24.00
Centigrade degrees
Red
Unit of measure
of selected parameter
-
Bar
Red
not used
-
Red
not used
-
Menù
Red
Menu browsing
-
Compressor 1
Amber
User activated
Safety timing
3
3
3
4
4
4
Economy
Unit of measure
3
3
4
3
4
4
4
3
4
Relative humidity 3
3
3
3
Users
3
3
3
3
3
4
4
4
Remote control
4
4
4
4
4
4
4
Compressor 23
4
Amber
User activated
Safety timing
Compressor 33
4
Amber
User activated
Safety timing
not used
4
-
-
-
User activated
Safety timing
3
Antifreeze heater
3 4
Amber
Supplementary heating element 1st step
3
4
Amber
User activated
Safety timing
Plant pumps3
4
Amber
User activated
Safety timing
3
4
Fans
Suitable for wall mounting, it has all the functions of the standard interface fitted on
the unit.
The buttons, functions associated with the buttons and the display indications are
the same as those provided for the standard interface.
All configuration and control operations are further facilitated by the double display
which allows the name and value of the selected parameter to be shown at the
same time.
Refer to the enclosed manual for the installation and connection procedures and
operating instructions.
60
MAIN CONTROLLER
Menu structure - Main controller
The control system is basedd on three menu with tree structure.
Menu
Operation
mode
Access procedure
Submenu
Press (prolonged)
Stby
Available functions
Change operation mode
HEAT
(ESC button associated function)
Press
UP button
COOL
-
Value increases, the next label
-
Value decreases, the next label
(UP button direct function)
Press
DOWN button
(DOWN button direct function)
Press (prolonged)
Main view
(disp)
(SET button direct function)
Menu
Access
procedure
Procedure
sETp
Set point (set by customer) display
sETR
Set point (actual set point) display
Ai
Di
AO
DO
CL
Hr
√
√
√
√
√
√
√
√
√
√
√
√
√
√
√
√
√
√
√
√
Submenu
USER
SERVICE
√
√
√
√
√
√
√
√
√
√
√
√
√
√
√
√
√
√
√
√
√
√
√
√
√
√
√
Status
(combined function
ESC + SET button)
Clock display
SERVICE
Sp
Sr
Pressure contemporary buttons
+
RTC
USER
(SET
button direct
function)
Access
procedure
Analogue input display
Submenu
Pres
Menu
Ai
Par
CL
CR
CE
CF
Ui
TR
ST
Cp
PI
FE
PE
Hi
HE
DF
DS
HP
PL
TE
AL
RC
√
√
√
√
√
Available functions
Analogue input display
Digital input display
Analogue output display
Digital output display
Date and hour adjustment
HEAT setpoint display
COOL setpoint display
HEAT actual setpoint display
COOL actual setpoint display
Compressors and pumps working hours display
Available functions
Electronic controller configuration parameters (base controller)
Electronic controller configuration parameters (remote controller)
Electronic controller configuration parameters (expansion controller)
Electronic controller configuration parameters
LED Electronic controller configuration parameters (base + remote)
Temperature control parameters
Operating states parameters
Compressor parameters
Plant pump parameters
Fan parameters
Source pump parameters
Plant heaters (antifrezze and integration) parameters parameters
Source heaters (antifrezze and integration) parameters parameters
Defrost parameters
Dinamic Setpoint parameters
Heat pump block parameters (in HEAT mode)
Demand limit parameters
Scheduling (time bands) parameters
Alarms parameters
Heat recoveryparameters
61
MAIN CONTROLLER
Access
procedure
Programmation
Menu
SubAvailable
SERVICE
USER SERVICE
Available functions
menu
functions
Manual defrost
dEF
√
Silence alarms
ta
√
Change in OFF state
Off
√
st
Change in status ON
On
√
FNC
Upload program parameters
UL
√
Download the program parameters
CC
dL
√
Format Multi Function Key
fr
√
EUR
√
Reset historical alarms
Pass
-
√
√
Enter password
EU
-
√
√
Viewing historical alarms
Alarm mute
Pressure contemporary buttons
+
-
-
-
√
√
Alarm manual restore
-
-
-
√
√
Enable manual defrost
Manual defrost
(combined function ESC + SET
button)
Long press button
(UP button function associated)
Press SET to go from one level to that below. Press ESC to go to higher level.
Press the UP and DOWN buttons respectively to scroll the menu up and down inside the same level.
Press the UP and DOWN buttons to modify the value of the selected parameter. Press SET to confirm the modification. Press ESC
to not confirm the modification.
62
MAIN CONTROLLER
Alarms
Alarm activation and reset
The controller can perform a complete diagnosis of the unit, detecting all operation faults and signalling a number of alarms.
Activation of an alarm involves :
• blocking of users concerned
• signalling of alarm code on the display (in case of simultaneous alarms the one with the lowest index is displayed whereas the
complete list of active alarms can be shown by accessing the “Status \ AL”) menu
• recording of event in the alarms history
Alarms that can damage the unit or system require manual resetting or an action by the operator to reset the controller (pressing
the UP and DOWN buttons at the same time). It is advisable to carefully check the cause of the alarm and make sure the problem is
eliminated before restarting the unit. In any case the unit restarts only if the cause of the alarm has ended.
Less critical alarms are automatic reset. As soon as the cause is eliminated the unit starts working again and the alarm code disappears from the display. Some of these alarms become manual reset if the number events per hour exceeds a fixed limit.
Press any button to deactivate the alarm : alarm signalling disappears from the display, the alarm LED starts flashing and the Alarm
digital output is disabled. This operation does not affect the alarm in progress.
Number of events per hour
The counting of events per hour is provided for some alarms : if the number of events reaches a fixed limit in the last hour, the alarm
goes from automatic to manual reset.
Sampling of alarms occurs every 112 seconds. If an alarm is activated several times in a sampling period (112 seconds) it is counted
only once.
Example. If an number of events per hour equal to 3 is set, it must have a duration of between 2*112 seconds and 3*112 seconds so
that the alarm goes from automatic to manual reset.
manual-reset
Riarmo
Manuale
Riarmo
Automatico
automatic-reset
alarm
Allarme
counting
Conteggio
alarm
Campionamento
sampling
allarmi
1
112 s
2
112 s
3
112 s
112 s
Time
Tempo
Alarms history
The controller enables the recording of alarms occurring during unit operation (up to a max. of 99 events). The following are memorised for each event :
• alarm code
• input time
• input date
• output time
• output date
• type of alarm (automatic or manual reset)
This information can be shown by accessing the “Programming \ EU” menu.
When the number of events memorised is more than 99, alarm Er90 is generated and the subsequent events are memorised overwriting the oldest alarms.
The alarms history can be cancelled by means of the Evr function available inside the “Programming \ FnC” menu.
63
MAIN CONTROLLER
OFF
OFF comp.1
OFF comp.2
OFF comp.3
OFF
M
DI5
OFF
OFF
Er20 Plant circuit water differential pressure switch / paddle switch
A/M
DI6
OFF
M
M
M
M
M
M
A
A
A
A
A
A
A
A
A
A
M
DIE4
DIE5
DIE2
DIE3
AI2
AIE2
OFF
OFF
OFF
OFF
OFF
OFF
AI1
AI2
AI3
AI1
AI2
AI4
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
Er21
Er22
Er25
Er26
Er30
Er31
Er45
Er46
Er47
Er60
Er61
Er62
Er63
Er64
Er68
Er80
Er90
Plant circuit pump 1 thermal protection / pump inverter (if present)
Plant circuit pump 2 thermal protection
Recovery water differential pressure switch / paddle switch
Recovery pump 1 thermal protection
Plant circuit antifreeze
Recovery circuit antifreeze
Clock fault error
Clock to be set error
Remote keyboard communication error
Plant exchanger inlet water probe fault
Plant exchanger outlet water probe fault
Liquid temperature probe
Recovery exchanger inlet water probe fault
Recovery exchanger outlet water probe fault
External air probe fault
Configuration error
Recordings for alarms history exceeded signalling
AUXILIARY
OUTPUT
DI4
DI1
DI2
DI3
Er05
Er10
Er11
Er12
EXCHANGER
RESISTANCES
PLANT
COMPRESSORS
A/M (2)
M
M
M
Alarm
PLANT
CIRCUIT PUMPS
input
Low pressure
Compressor 1 thermal protection
High
Compressor 2 thermal protection
pressure
Compressor 3 thermal protection
sequence meter + fans thermal switch + inverter fan or cut
Er41
phase (if present) + EEV driver alarm (if present)
Code
FANS
Type of alarm
Alarm table
OFF
OFF
if manual
OFF
reset
OFF
OFF p.1
OFF
OFF p.2
OFF
ON
OFF
ON
OFF
OFF
OFF
OFF
Notes:
(1) A = automatic reset, M = manual reset
(2) Only when the alarm becomes manual reset
Er05 Low pressure
The alarm becomes manual reset when the number of events per hour is more than parameter al12.
The alarm is bypassed for parameter al11 seconds from activation of the compressor or the reverse cycle valve.
Er10 Compressor 1 thermal protection - ER11 Compressor 2 thermal protection - ER12 Compressor 3 thermal protection
The manual-reset alarm intervenes in the event of activation of the compressor thermal protection or the thermostat located on the
outlet of the compressor .
ER10 ER11 * Compressor 1 thermal protection - Compressor 2 thermal protection - Compressor 3 thermal protection - High
pressure switch (PA1)
The manual-reset alarm intervenes in the event of activation of the compressor 2 thermal protection or the thermostat located on the
outlet of the compressor 2 AND in the event of activation of the compressor 1 thermal protection or the thermostat located on the
outlet of the compressor 1 and/or more likely it means the auto-reset high pressure switch (PAA) trips in.
Er20 / Er25 Differential pressure switch - flow switch plant / recovery
The alarm is activated if the associated digital input remains activated for at least 5 seconds and automatically resets if the digital
input remains not activated for at least 3 seconds. The alarm becomes manual reset if the digital input remains activated for more
than 10 seconds. The alarm is bypassed for 15 seconds from pump activation.
ER 21 ER22 / ER26 Pump thermal protections plant / recovery
When thermal protection trip in the controller stop the pump and the unit; if the controller manages two pumps it involves the activation
of the other, if both thermal protection trip in the controller stops the unit.
Er41 Sequence meter - Fans thermal protection - EEV driver alarm
The alarm reset manually activated in case of wrong phase sequence (if any overvoltage or undervoltage voltage with the engine in
case of thermal protection of the fans or the cutting phase, or in case of alarm the driver of the EEV electronic valve.
64
MAIN CONTROLLER
ER20 ER25 Flow switch / water differential pressure switch alarm
Unit with 1 pump:
The alarm s active if the input is active for at least the time AL15 (plant) / AL18 (source). It remains automatic for the time
AL16 (plant) / AL19 (source): if, during this time the alarm is deactivated the unit can restart to work, instead if remains active becomes
manual.
Unit with 2 pumps:
The alarm s active if the input is active for at least the time AL15 (plant) / AL18 (source). It remains automatic for the time
AL16 (plant) / AL19 (source): during this time the controller stops the working pump and switch on the other one, if the alarm is
deactivated the unit can restart to work, instead if remains active becomes manual.
1 PUMP : PLANT / RECOVERY
2 PUMPS : PLANT / RECOVERY
digital input - flow switch alarm
digital input - flow switch alarm
automatic alarm
automatic alarm
manual alarm
AL15 / AL 18
pump switch
manual alarm
AL15 / AL 18
AL16 / AL 19
AL16 / AL 19
If there is the flow switch alarm during the first startup of the unit control the cleaness of the water plant.
Particularly diring the startup a lot of impurities due to the pipes installation can be present into the hydraulic plant
and if the plant was not carefully washed, despite the installation of water filters
with adequate mesh size impurities as sand,
chips or similar could enter into the exchangers choking them and, in worst cases,
lead to a serious damage or broke for freezing (if the excahanger is working as evaporator).
Er30 / ER31 Antifreeze plant / recovery
The alarm switch off the compressors, activates the heaters and the pumps (if off).
It is a very dangerous alarm: check carefully the possible cause and eliminates it before reset the alarm.
ER45 Clock failure
If the clock is not working it is not possible to set time bands and the record of date and hour for the alarms present in the alarm
events.
ER46 Alarm: clock to be set
There is this alarm if the controller is not electrically supplied for several days.
ER47 LAN communication error between electronic controller (base, remote, expansion)
There is this alarm if there si not communication between the devices connected trough LAN.
ER60 ER61 ER63 ER64 Failure of temperature probes (plant and recovery)
This alarm stops the unit. It could be caused for short-circuit, breakage or out of range of the probe
Er62 Failure of liquid temperature probe
If the alarm is active the fans work only on-off on request (on when compressor is on). It could be caused for short-circuit, breakage
or out of range of the probe. In and out defrosting are managed by the timing of compressor.
Er68 Failure of external air temperature probe
If the alarm is active all controls based on this probe (i.e. dynamic setpoint or defrost) are disabled: the unit can continue to work. It
could be caused for short-circuit, breakage or out of range of the probe.
Er80 Configuration fault
Appears when the parameters are not set correctly.
Er90 Maximum number of recordings in alarms history exceeded
Indicates that the alarms history buffer is full. Every new alarm will be memorised, cancelling the oldest alarm.
* Note: The manual-reset high pressure (PA2) does not have reference on the control display so you can not identify it
through the internal diagnostics as it acts directly on contactors, it may happen that the control display does not signal
any error but the compressors are however still, in this case switch-off the unit then rearm the manual-reset high pressure
switch by pressing the button located at the top of the switch.
65
MAIN CONTROLLER
Available function
ST-BY of the unit
When the unit is powered it may be in STAND BY status (the display shows the message Stby) or ON status. It is possible to switch
between ON and STAND BY by pressing (prolonged) the MODE button.
When the unit is STAND BY all the users are disabled and the antifreeze function is not activated.
Operation mode selection
When the unit is ON, one of the operation modes can be selected by accessing the “Operation mode” menu.
- Cooling
COOL
- Heating
HEAT
3 4
- STAND BY StdBY
3
3
4
4
Remote ST-BY
This function allows remote selection of the STANDBY mode. If the input is activated (contact open) the controller is in STANDBY
3 4
mode and the operation
mode cannot be modified from keyboard.
The function is available if one of the configurable inputs is configured for this, contact closed = unit ON (display SIW),
contact open = STAND-BY (display StdBY).
Working mode remote change-over cooling
/
heating
This function allows remote selection of Cooling or Heating mode. If the input is activated (contact open) the unit is in heating mode.
3 4
4
If the input is not activated (contact closed) the unit is in 3cooling
mode.
The operation mode cannot be modified from the keyboard
(but STANDBY mode can be selected).
To enable this function, follow the indications in the section “configurable inputs setting”.
Set point
The set point value in cooling (COOL) and heating (HEAT) can be set by accessing the “Status \ Sp” menu. The purpose of the controller
is to keep the water temperature at the unit inlet as close as possible to the set value, by activating the compressor according to an
on-off logic.
Note for heat pump mode:
It's possible to set a value for outside air temperature (parameter HP11) below which the heat pump operation is stopped (still available, if any, additional integrative heaters).
Compressors
steps
Gradini compressori
1
(temp. AI1)
Tr13
Gradini compressori
Compressors
steps
Heating
Cooling
2
2
1
(temp. AI1)
Tr24
Tr14
Tr23
3
Set-point HEAT tr20
Set-point COOL tr10
antifreeze
alarm
Allarme antigelo
4
Antifreeze
The plate-type exchanger is protected by activation of an electrical heating element and activation of the antifreeze alarm, occurring in sequence when the exchanger outlet water temperature reaches dangerous values. The storage tank is protected by the antifreeze heater (accessory)
activated in parallel with the plate-type exchanger heating element.
ON
3
OFF
Al51
Compressors
Gradini steps
parzializzazione
control
4
Supplementary electrical heating elements
The parameter Hi20 enables operation of the electrical elements supplementing the heat pump when it assumes value 1. The heating elements
are activated according to a two-step logic depending on the unit inlet
water temperature. When present, the heating elements also carry out a
storage tank antifreeze function.
2
Set-point HEAT
1
0
Hi25
Hi26
66
Temp. AI2
AL52
Temp. AI1
Hi25
Hi22
MAIN CONTROLLER
Dinamic setpoint
The parameter ds00 allows the dynamic setpoint; if ds00=1 the setpoint is corrected as a function of external air temperature (if
present). To set the external air temp follow the indications of the section “Configurable Inputs”.
The activation of the dynamic setpoint is displayed by the switch-on of the led Economy on the display (money box symbol); it is
possible to display the actual setpoint by the parameter .
Dinamic setpoint in heating mode
It is possible to modify setpoint (ds06 in °C), the proportional
band (ds02 in °C), and the maximum differential (ds04 in °C)
Set-point
HEAT
Heating:
 positive
dS04
Temp. aria
esterna
AI4 o AI5
dS02
dS06
Dinamic setpoint in cooling mode
It is possible to modify setpoint (ds05 in °C), the proportional
band (ds01 in °C), and the maximum differential (ds03 in °C)
Cooling :
1 negative
dS03
Set-point
COOL
dS01
dS05
Temp. aria
esterna
AI4 o AI5
Plant3pump
on-off control
4
Pre-pumping: when the unit is switched fromn STD-BY to COOL or HEAT mode firstly the pump is activated and, if there is no alarm,
after the time of parameter PI20 the first compèressor can start-up.
Post-pumping: when the unit is switched from COOL or HEAt mode to STD-BY firstly the compressors are switched-off and after the
time of parameter PI21 the pump is switched off.
If the pump is ON is always working at 100%.
Plant pump
control
3 modulating
4
If the pump is driven by inverter (or similar modulating system) is possible to set the velocity between 30% and 100% of the maximum
velocity modifying the parameters PI31 in cooling, PI41 in heating.
For instance with PI31=70 and PI41=75 the velocity will be 70% in cooling and 75% in heating
Note: When the compressors are off the pump works at minimum velocity.
Referring pre and post pumping the pump is managed as in on-offIngresso
mode
Digitale
Demand
Demand limit
Basing on the state of a digital input, this function allows to
force the unit to work with only 1 compressor, so reducing the
power input demand.
To enable this function follow the indications of the section
“Configurable Inputs”.
digital
input
Limit
Demand Limit
ON
ON
Ingresso
OFF
Digitale
OFF
Demand
compressors
Limit
steps 1
disabling
disabilitazione
Gradini
1
ON
compressori
0
0
OFF
disabilitazione
Gradini
compressori
1
67
MAIN CONTROLLER
Funzione economy
3
4
Basing on the state of a digital input, this function allows to modify the setpoint.
In cooling mode the setpoint is increased of the value of the parameter tr15 (es. TR15 + 5 °C).
In heating mode the setpoint is decreased of the value of the parameter tr25 (es. TR25 - 6°C)
To enable this function follow the indications of the section “Configurable Inputs”- “Economy”.
The activation of the Economy function is displayed by the switch-on of the led Economy on the display (money box symbol); it is
possible to display the actual setpoint by the parameter Settr.
The enabling of the Economy function has to be done consideringIngresso
the following scheme:
Digitale
Economy
Cooling mode :
1
usually positive value
set-point 
Digital input
Economy
ON
OFF
Set-point
tr10 + tr15
Set-point
COOL tr10
Heating mode :

usually negative value
set-point HEAT
Ingresso
digital
input
Digitale
Economy
Economy
ON
OFF
Set-point
Set-point
HEAT tr20
tr20 + tr25
Recording hours of operation
The controller can record the hours of compressors and pumps operation. Access the “Status \ Hr” menu to show the values.
Power failure
In case of a power failure, when the power is restored the controller will go to the status prior to the power failure. The procedure is
cancelled if a defrost is in progress. All timing in progress is cancelled and reinitialised.
Clock
The controller has an internal clock for memorising the date and time of each alarm occurring during unit operation (see “Alarms
history”). The clock can be set by accordingly to "Date and time set up".
History alarms
The controller is able to log and save up to 90 alarm events. Alarms are visible in the menu “Par \ eu”.
Push SET to display alarm EU00 (if present) that is always the latest, EU01 is the one before and so on.
Scroll to UP and DOWN keys to display all the other alarms, push SET to display more information about the event chosen: alarm
code (see alarm table), start event time, start event date, stop event time, stop event date,type of alarm (automatic or manual reset).
Example of an alarm visualization:
alarm event
EU01
└ stop event time
20:09
└ alarm code
Er01
└ stop event date
28.03
└ start event time
20:01
└ type of alarm
auto / manu
└ start event date
28.03
Total recovery function (VR unit only)
The recovery function thermoregulates on the inlet water AIE1
probe. If there is no demand for cooling power recovery can not
be activated.
The parameters to adjust are:
rC01 recovery set point
rC02 recovery differential
68
Attivazione
recupero
Set point
Recupero RC01
Rec ON
Rec OFF
Rc02
Sonda ingresso
Recupero AIE1
MAIN CONTROLLER
Automatic change-over
This function is present in the heat pump unit.
The automatic change-over function is enable by  parameter - Enable change analogue input setting.
 = 0
 = 1
automatic change-over disable
automatic change-over enable
The automatic change-over can take place from the analog signal of the probe set by parameters  - probe selection for automatic
change-over:
 = 0
 = 1
 = 2
outdoor air temperature
inlet water temperature plant exchanger
outlet water temperature plant exchanger
The entrance in cooling and heating mode with two different differentials set by parameter  - Differential for automatic chan-over
in heating - and  Differential for automatic chan-over in cooling
In the neutral zone (between the two set-point) mode can also be set by key.
Following an example of automatic change-over based on external air temperature ( = 0)
Set
Setpoint
point
COOL
COOL
Set
Set point
point
HEAT
HEAT
COOL
COO
L
HEAT
HEAT
Outdoor
Outdoor air
air
temperature
temperature
ST04
ST03
Set point COOL and set point HEAT are the real set-point and can differ from set-point  and  due to climatic regulation
enabled (economy function and dinamic set point)
Note:
  is summed to set point COOL;  is summed to set point HEAT.
- ( + ) < (Set HEAT – Set COOL), otherways the sum of the absolute value of the two differential may not overcome the
value of (Set HEAT - Set COOL).
Date and time set up
The electronic controller is equipped with internal clock (RTC) that allows to record in the alarm events date and hour of each alarm.
To modify date and hour, starting from the main view on the display, press the SET button.
A single pressure of the button SET enter the view of different folders.
Scroll the menu using UP and DOWN buttons until find the folder CL.
Press the SET button to enter in the menu.
Now in the display you have the label HOUR. You can choose to set hour, date and year scrolling the menu using UP and DOWN
buttons.
Press the SET button for 3 seconds and enter in the modification menu.
To set hour, date and year it will be enough scroll UP and DOWN until the selected value, then press SET button.
To exit from the clock adjustment menu press the ESC button until arrive to main view on the display.
69
MAIN CONTROLLER
Timer scheduling
The scheduling allows to set weekly time zones to obtain a reduce in energy consumption when the cooling or heating demand is
lower.
There are 3 time zones each one with 4 events per hour.
For each event, you can set hours and minutes of start and stop, an operating mode (Stand-by or ON), a cooling set point and a
heating set point.
ATTENTION: you can not change the operating mode via scheduling. The operating mode (cooling or heating) will be the
same adopted before the enabling of time scheduling.
To enable time scheduling you must set up the date and time into the controller
The parameters for the scheduling can be accessed in the “tE” (time event) folder.
Enabling
The function can be enabled with the parameters tE00 – Enabling scheduling
Parameters
tE00
Enabling
scheduling
descroptions
Value
Scheduling disabled
Scheduling enabled
0
1
Management time
For each day of the week you can select one of the 3 time zone available
Parameters
day
tE01
tE02
tE03
tE04
tE05
tE06
tE07
Monday
Tuesday
Wednesday
Thursday
Friday
Saturday
Sunday
Time zone
1
1
1
1
1
1
1
2
2
2
2
2
2
2
3
3
3
3
3
3
3
For each time zone you can associate 4 events.
The parameters involved in time events are described below:
Event hour start time
It determines the hour of the start of the event [0-23]
Event minute start time
It determines the minutes of the start of the event [0-59]
Operating Mode ON/Standby
It determines the operating mode during the event
• 0 = ON
• 1 = Stand-by
Set point Cool
It determines the set point in cooling mode that will be set if the unit is in cooling mode before time scheduling
Set point Heat
It determines the set point in heating mode that will be set if the unit is in heating mode before time scheduling
70
MAIN CONTROLLER
Summary parameters table for time scheduling
Descrizione
Hour / minutes
EVENT 1
tE38..tE39
tE66..tE67
tE12
tE40
tE68
SetPoint Cool
tE13
tE41
tE69
SetPoint Heat
tE14
tE42
tE70
tE17..tE21
tE45..tE49
tE73..tE77
tE17..tE18
tE45..tE46
tE73..tE74
tE19
tE47
tE75
SetPoint Cool
tE20
tE48
tE76
SetPoint Heat
tE21
tE49
tE77
tE24..tE28
tE52..tE56
tE80..tE84
tE24..tE25
tE52..tE53
tE80..tE81
Mode operating ON/Standby
tE26
tE54
tE82
SetPoint Cool
tE27
tE55
tE83
Mode operating ON/Standby
SetPoint Heat
Hour / minutes
EVENT 4
Profilo 3
tE66..tE70
tE10..tE11
Hour / minutes
EVENT 3
Profilo 2
tE38..tE42
Mode operating ON/Standby
Hour / minutes
EVENT 2
Profilo 1
tE10..tE14
tE28
tE56
tE84
tE31..tE35
tE59..tE63
tE87..tE91
tE31..tE32
tE59..tE60
tE87..tE88
Mode operating ON/Standby
tE33
tE61
tE89
SetPoint Cool
tE34
tE62
tE90
SetPoint Heat
tE35
tE63
tE91
Example of timer scheduling:
You choose to set time zone 1 from Monday to Friday with the following setup:
At 07.30 you put the unit ON with a set point of 12°Cin cooling mode, and 40°C in heating mode
At 12.30 you change the set point to 14°C in cooling mode, 37°C in heating mode
At 13.30 you change the set point to 12°C in cooling mode, 40°C in heating mode
At 18.00 you put the unit in stand-by
You have to set the following parameters:
tE00=1 enabling scheduling
tE01, tE02, tE03, tE04, tE05, = 1
time zone 1
EVENT 1 – unit ON
tE 10=8 hour
tE 11=30 minutes
tE 12= 0 ON, unit is ON (pay attention: 0=ON, 1=stand-by)
tE 13= 12
tE 14=40
set point cool 12°C
set point heat 40°C
EVENT 2 – change set point
tE17=12 hour
tE18=30 minutes
EVENT 3 – change set point
tE 24=13 hour
tE 25=30 minutes
tE 26= 0 ON, unit is ON (pay attention: 0=ON, 1=stand-by)
tE 27= 12
tE 28=40
set point cool 12°C
set point heat 40°C
EVENT 4 – unit in stand-by
tE 31=18 hour
tE 32=00 minutes
tE19= 0 ON, unit is ON (pay attention: 0=ON, 1=stand-by)
tE 33= 1 stand-by, unit is in stand-by (pay attention: 0=ON,
1=stand-by)
tE 20= 12
tE 21=40
tE 34= 12
tE 35=40
set point cool 14°C
set point heat 37°C
set point cool 12°C
set point heat 40°C
The operating mode (cooling or heating) adopted is the one already active before the event happens.
For Saturday or Sunday you can choose time zone 1 or another time zone (2 or 3) and set the parameters in a similar manner as
described in this example.
71
MAIN CONTROLLER
Parameters
Common parameters
Description
TR10 - Temperature controller setpoint in COOL
TR13 - Temperature control hysteresis
TR14 - Steps/compressors insertion differential
TR15 - Setpoint differential in Cool from economy input
TR20 - Temperature controller setpoint
TR23 - Temperature control hysteresis
TR24 - Steps/compressors insertion differential
TR25 - Setpoint differential in Heat from economy input
dS01 - Temperature controller dynamic differential proportional band in Cool
dS02 - Temperature controller dynamic differential proportional band in Heat
dS03 - Maximum temperature controller dynamic differential in Cool
dS04 - Maximum temperature controller dynamic differential in Heat
dS05 - Temperature controller dynamic differential setpoint in Cool
dS06 - Temperature controller dynamic differential setpoint in Heat
PI30 - Minimum Plant circuit water pump speed in Cool
PI31 - Maximum Plant circuit water pump speed in Cool
PI40 - Minimum Plant circuit water pump speed in Heat
PI41 - Maximum Plant circuit water pump speed in Heat
HI22 - Plant exchangerheaters maximum dynamic differential in integration
HI25 - Plant exchangerheaters regulator hysteresis in integration
HI26 - Plant exchangerheater 2 switch-on setpoint differential in integration
AL15 - Flow switch activation/deactivation time on Plant circuit automatic alarm
AL16 - Enable flow switch time for Plant circuit manual alarm
AL51 - Plant circuit anti-freeze regulator setpoint alarm
AL52 - Plant circuit anti-freeze regulator hysteresis alarm
Unit
Min
Max
°C
°C
°C
°C
°C
°C
°C
°C
°C
°C
°C
°C
°C
°C
%
%
%
%
°C
°C
°C
sec
Sec x 10
°C
°C
7
0.1
0.1
-25.5
28
0.1
0.1
-25.5
-50
-50
-50
-50
-50
-50
0
0
0
0
0
0.1
0
0
0
-50
0.1
27
25.5
25.5
25.5
53
25.5
25.5
25.5
99.9
99.9
99.9
99.9
99.9
99.9
100
100
100
100
99.9
25.5
99.9
255
255
99.9
25.5
Unit
Min
Max
°C
°C
-50
0.1
99.9
25.5
default
value
9
1
2.5
5
43
1
2.5
-5
-10
10
5
-5
30
10
20
100
30
100
10
2
3
2
2
3
2
Protection
3
2
2
1
3
2
2
1
1
1
1
1
1
1
2
3
2
3
1
2
2
2
2
1
2
Specific parameters for VR unit
Description
rC01 - Set point recovery
rC02 - Differential recovery
Protection 3 = always accessible
Protection 1 = accessible by service
Protection 2 = not accessible
72
default
value
41
2
Protection
3
1
MAIN CONTROLLER
Configurable inputs
The configurable inputs are AI4, AI5 and DI5.
For configuration, access the parameters CL and select the required function according to the following tables.
I/O
AI4
AI5
ID
S1
S2
analogue / digital input
Polarity
Offset (range) / Stato
Not configured
CL03 = 0
CL33 = 0
CL53 = 0
----
----
External probe sensor (provided with
accessory SND3)
CL03 = 2
CL33 = 9
CL53 = 0
NTC probe
CL23 (-12,0... +12,0 [°C])
CL13 = Start value scale AI4 [°C]
CL12 = Full scale value AI4 [°C]
External probe air as analog input 4-20
mA
CL03 = 3
CL33 = 9
CL53 = 0
----
CL23 (-12,0... +12,0 [°C])
CL13 = Start value scale AI4 [°C]
CL12 = Full scale value AI4 [°C]
CL03 = 4
External probe air as analog input 0-10 V CL33 = 9
CL53 = 0
----
CL23 (-12,0... +12,0 [°C])
CL13 = Start value scale AI4 [°C]
CL12 = Full scale value AI4 [°C]
External probe air as analog input 0-5 V
CL03 = 5
CL33 = 9
CL53 = 0
----
CL23 (-12,0... +12,0 [°C])
CL13 = Start value scale AI4 [°C]
CL12 = Full scale value AI4 [°C]
External probe air as analog input 0-1 V
CL03 = 6
CL33 = 9
CL53 = 0
----
CL23 (-12,0... +12,0 [°C])
CL13 = Start value scale AI4 [°C]
CL12 = Full scale value AI4 [°C]
ATC
CL03 = 1
CL33 = 0
CL53 = +21
input active open
contact
open contact = ATC active
close contact = ATC not active
ON/STBY remote (digital input)
CL03 = 1
CL33 = 0
CL53 = +1
input active open
contact
open contact = STAND-BY
close contact = ON
Summer / Winter remote (digital input)
CL03 = 1
CL33 = 0
CL53 = +3
input active close
contact
close contact = HEAT (Winter)
Demand Limit 50% (digital input)
CL03 = 1
CL33 = 0
CL53 = +21
input active close
contact
close contact = Demand Limit 50%
Economy (digital input)
CL03 = 1
CL33 = 0
CL53 = +22
input active close
contact
close contact = economy
Not configured
CL04 = 0
CL34 = 0
CL54 = 0
----
----
External probe sensor (analogic input)
CL04 = 2
CL34 = 9
CL54 = 0
NTC probe
CL24 (-12,0... +12,0 [°C])
ON/STBY remoto (digital input)
CL04 = 1
CL34 = 0
CL54 = +1
input active open
contact
open contact = STAND-BY
close contact = ON
Summer / Winter remote (digital input)
CL04 = 1
CL34 = 0
CL54 = +3
input active open
contact
close contact = HEAT (Winter)
Demand Limit 50% (digital input)
CL04 = 1
CL34 = 0
CL54 = +21
input active open
contact
close contact = Demand Limit 50%
CL04 = 1
CL34 = 0
CL54 = +22
CL44 = 0
input active open
contact
close contact = economy
Economy (analogic input)
Not configured
----
----
CL44 = -48
input active open
contact
open contact = thermal pump 2
ON/STBY remote
CL44 = -1
input active open
contact
open contact = STAND-BY
Summer / Winter remote
CL44 = +3
input active close
contact
close contact = HEAT (Winter)
Demand Limit 50%
CL44 = +21
input active close
contact
close contact = Demand Limit 50%
Economy
CL44 = +22
input active close
contact
close contact = economy
QF2. 2 thermal pump 2
DI5
Configuration
* If present the module of pumping two pumps can not get that DI5 must be configured CL44 = -48
The outdoor air sensor (if installed) is factory installed on input AI4; if it is necessary you can install it on input AI4 or AI5, as specified above. The input AI4 can also accept an input signal current (4-20mA) or voltage (0-10V ,0-5V ,0-1V) from a probe external air
by the user.
73
MAIN CONTROLLER
Network comunication
The unit can communicate on serial line using the Modbus communication protocol with RTU coding.
The unit can be connected to an RS485 network by means of the serial interface supplied as an accessory, and respond to requests
from any master device connected to the network.
Serial line settings
The serial line must be set as follows :
•
baud rate
:
9600
•
data bits
:
8
•
stop bits
:
1
•
parity
:
even
All the devices connected to the same serial line MUST use the same settings.
Device address
To communicate correctly, each device connected to the serial network must have an univocal address (“Modbus individual address”)
of between 1 and 247. This address can be set by modifying the parameter CF63.
Modbus commands
The Modbus commands implemented by the controller are :
•
parameter reading
3
(Hex 03 : Read Holding Registers)
•
parameter writing
16
(Hex 10 : Write Multiple Registers)
Table of addresses
All the available resources are stored in the controller as WORD (2 byte) and therefore require the reading or writing of an entire
Modbus register. According to the Modbus protocol, to identify a register of address X the address X-1 must appear in the message.
Some registers contain more than one piece of information : in this case the bits representing the resource value are identified by
means of the number of bits used (“Bit number”) and by the least significant bit (“Lsb”). In the writing operation for these registers it
is necessary to read the current register value, modify the bits representing the resource concerned and rewrite the entire register.
Example.
Bit number
=
4
Lsb=
7
Resource value =
3
15
0
14
1
13
1
12
0
11
1
10
0
9
0
8
1
7
1
6
1
5
0
4
1
3
1
2
0
1
1
0
0
The resources can be read only (R), write only (W) or read and write (RW).
To interpret the value written in the register it is necessary to consider the value of CPL, EXP and UM :
CPL :
if the register represents a number with sign (CPL = Y) carry out the following conversion :
0
=
32768 =
EXP :
indicates the exponent of the power of 10 to be multiplied by the register value to obtain the resource value.
register value
register value
<
<
32767 :
65535 :
EXP
-2
-1
0
1
2
MU :
resource value = register value
resource value = register value – 65536
Multiplier
10-2
0,01
10-1
0,1
100
1
101
10
102
100
indicates the unit of measure of the resource
IMPORTANT. DO NOT modify any parameter not indicated in the tables provided or indicated as a read only parameter (R), otherwise the warranty will be cancelled.
74
MAIN CONTROLLER
Modbus address table
Label Description
TR10
TR20
rC01
RW
Register address
Bit
Lsb CPL EXP
Dec
Hex number
UM
Temperature control setpoint in Cool
RW
17062
042A6
16
0
Y
-1
°C
Temperature control setpoint in Heat
RW
17074
042B2
16
0
Y
-1
°C
Recovery regulator set point (only for recovery unit)
RW
17742
0454E
WORD
Y
-1
°C
Operation hours compressor 1
R
979
003D3
16
0
N
0
ore
Operation hours compressor 2
R
981
003D5
16
0
N
0
ore
Operation hours plant pump 1
R
987
003DB
16
0
N
0
ore
Operation hours plant pump 2
R
989
003DD
16
0
N
0
ore
Operation hours source pump 1
R
991
003DF
16
0
N
0
ore
Operation hours source pump 2
R
993
003E1
16
0
N
0
ore
Analogue input AIL1
R
412
0019C
16
0
Y
-1
°C
Analogue input AIL2
R
414
0019E
16
0
Y
-1
°C
Analogue input AIL3
R
416
001A0
16
0
Y
-1
°C/Bar
Analogue input AIL4
R
418
001A2
16
0
Y
-1
°C/Bar
Analogue input AIL5
R
420
001A4
16
0
Y
-1
°C
Analogue input AIE1
R
898
00382
16
0
Y
-1
°C
Analogue input AIE2
R
900
00384
16
0
Y
-1
°C
Device in STAND BY
R
33028,2
08104
1 bit
2
N
0
num
Device in STAND BY (from digital input)
R
33028,3
08104
1 bit
3
N
0
num
Device in COOL
R
33028,4
08104
1 bit
4
N
0
num
Device in COOL (from digital input)
R
33028,5
08104
1 bit
5
N
0
num
Device in HEAT
R
33028,6
08104
1 bit
6
N
0
num
Device in HEAT (from digital input)
R
33028,7
08104
1 bit
7
N
0
num
COOL
HEAT
Select mode COOL
W
33552,3
08310
1 bit
3
N
0
num
Select mode HEAT
W
33552,4
08310
1 bit
4
N
0
num
STbY
Select mode STAND BY
W
33552,5
08310
1 bit
5
N
0
num
rC00
Er00
Select recovery mode (only for recovery unit)
Er05
Er10
Er11
Er20
Er21
Er22
Er25
Er26
Er27
Er30
Er31
Er45
Er46
Er47
Er60
Er61
Er62
Er63
Er64
Er68
Er80
Er90
RW
50508
0C54C
BYTE
N
0
num
General alarm
R
33104
08150
1 bit
0
N
0
flag
Circuit 1 digital low pressure alarm -phase sequencer-fan thermal switch
- EEV driver
R
33104,5
08150
1 bit
5
N
0
flag
Compressor 1 thermal switch alarm - high pressure - thermostat
R
33105,2
08151
1 bit
2
N
0
flag
Compressor 2 thermal switch alarm - high pressure - thermostat
R
33105,3
08151
1 bit
3
N
0
flag
Plant circuit flow switch alarm
R
33106,4
08152
1 bit
4
N
0
flag
Plant circuit pump1 thermal switch alarm
R
33106,5
08152
1 bit
5
N
0
flag
Plant circuit pump2 thermal switch alarm
R
33106,6
08152
1 bit
6
N
0
flag
Source circuit flowswitch alarm
R
33107,1
08153
1 bit
1
N
0
flag
source circuit pump 1 thermal switch alarm
R
33107,2
08153
1 bit
2
N
0
flag
source circuit pump 2 thermal switch alarm
R
33107,3
08153
1 bit
3
N
0
flag
Plant circuit antifreeze alarm
R
33107,6
08153
1 bit
6
N
0
flag
Recovery circuit antifreeze alarm
R
33107,7
08153
1 bit
7
N
0
flag
Faulty clock alarm
R
33109,5
08155
1 bit
5
N
0
flag
Time lost alarm
R
33109,6
08155
1 bit
6
N
0
flag
LAN communication absent alarm
R
33109,7
08155
1 bit
7
N
0
flag
Plant exchanger water input probe faulty alarm
R
33111,4
08157
1 bit
4
N
0
flag
Plant exchanger water output probe faulty alarm
R
33111,5
08157
1 bit
5
N
0
flag
liquid probe faulty alarm
R
33111,6
08157
1 bit
6
N
0
flag
source exchanger water input probe alarm
R
33111,7
08157
1 bit
7
N
0
flag
Faulty exchanger water output probe alarm
R
33112
08158
1 bit
0
N
0
flag
Faulty external temperature probe alarm
R
33112,4
08158
1 bit
4
N
0
flag
Configuration error
R
33114
0815A
1 bit
0
N
0
flag
Alarm history log full warning
R
33115,2
0815B
1 bit
2
N
0
flag
* If several operation modes are enabled by mistake:
- STAND-BY has priority over HEATING, COOLING
- HEATING has priority over COOLING
75
ELECTRONIC EXPANSIONE VALVE CONTROL - XVD420
The electronic expansion valve is managed by a microprocessor controller to which the electronic valve and relative control devices are
connected.
mode
°C
Prg
1
2
3
4
Electronic expansion
valve controller
(optional for IR unit,
standard for IP unit)
The user interface comprises a display and four buttons with
which it is possible to show and possibly modify all the electronic expansion valve operation parameters.
The interface, located in the front part of the unit and accessible by
removing the front panel of the unit.
Inputs and outputs
Analog input
Analog inputs ELECTRONIC EXPANION VALVE DRIVER (XVD420)
DESCRIPTION
CHARACTERISTICS
AI1
suction pression transducer
electronic transducer 4-20 mA (0 barg ÷ 30 barg)
AI3
suction temperature
NTC temperature sensor (-50°C ÷ 99°C)
Digital input
Digital inputs ELECTRONIC EXPANION VALVE DRIVER (XVD420)
DESCRIPTION
DI1
CHARACTERISTICS
Enabling regolation
Digital input with voltage-free contact
Digital output
Digital outputs ELECTRONIC EXPANION VALVE DRIVER (XVD420)
DESCRIPTION
DO1
CHARACTERISTICS
Alarms
5A resistive relays - 250Vac
Technical data
Electronic expansion valve driver EEV - XVD420 technical data
Description
Power supply voltage
Power supply frequency
Power
Protection rating
Ambient operating temperature
Ambient operating humidity (non-condensing)
Ambient storage temperature
Ambient storage humidity (non-condensing)
76
disp
Typical
24 V~ / -50 Hz / 60 Hz
30 VA - 25Watt
2
25 °C
30 %
25 °C
30 %
Minimum
-5 °C
10 %
-20 °C
10 %
Maximum
55 °C
90 %
85 °C
90 %
6
18
19
max 100mA
LOAD
77
Televis/
Modbus
(via BusAdapter)
Solenoid / Alarm
IMG INFO
DI1 DI2 GND
17
3
D02 12Vc
2
Open Collector
15
3
16
4
Valve Output
14
2
18
6
8
A
19
20
Keyb
B
C
1 2 3 4 5 6
OFF
7
21
9
~
-
L
N
NO
11
S
C
23
24
DO1
NO
12
AI2 AI3 AI4
22
10
11
S
C
12
Solenoid Alarm
valve
DI1 DI2 GND 5Vc AI1
17
MFK
5
W2- W2+ W1- W1+
XVD
420
Valve Output
~
DO2 12Vc W2- W2+ W1- W1+ +
Televis/
Modbus
(via BusAdapter)
Solenoid Alarm
valve
21
AI1
19
GND
XVD100
19
22
23
24
20
3
RED
22
SIG
BROWN
WHITE
BROWN
WHITE
NTC/
Pt1000
22
BLUE BLUE
AI1 AI2
21
EWPA 4...20mA
SIG
AI1 AI2
21
NTC/
Pt1000
EWPA R 0/5V
12Vc
+
AI1 AI2 AI3 AI4
21
GND 5Vc
BLACK
GND
19
XVD420
-
GND
19
V
V
SIG
AI1
21
Transducer Power Supply
GND
GND
Signal
Signal
0-10V
0-10V
Transducer 4...20mA
SIG
SIG
22
-
21
AI1 AI2
3
GND
19
12Vc
+
SIG
SIG
AI1 AI2
22
-
21
GND
19
ELECTRONIC
ELECTRONIC
EXPANSIONE
EXPANSION
VALVE
VALVE
CONTROL
CONTROL
- XVD420
Wiring scheme
ELECTRONIC
ELECTRONIC
EXPANSIONE
EXPANSION
VALVE
VALVE
CONTROL
CONTROL
- XVD420
User
6 interface
USER
INTERFACE (FOLDER PAR/UI)
The front panel of the device functions as the user interface and is used to perform all operations relating to the device.
XVD
6.1
SKP 10
XVD LED
There are 3 LEDs on the front panel of the XVD driver showing the status of the valve.
There are a further 3 LEDs inside the door for uploading/downloading parameters and/or applications (see Multi Function
Key chapter).
LEDs
EEV
Colour
On
Green
Valve regulation
Blinking
Valve closed
(No regulation in progress)
Setpoint
satisfied
Off
NA*
Defrost in progress
Defrost
Yellow
IMG INFO
Alarm
Valve closed
(No regulation in progress)
Red
NA
//
No defrost
No serial
connection
Alarm
present
No alarm
* EEV LED off means no power is reaching driver.
78
1
ELECTRONIC
ELECTRONIC
EXPANSIONE
EXPANSION
VALVE
VALVE
CONTROL
CONTROL
- XVD420
6.2
SKP 10 keys
The XVD driver does not have a display. Use the remote SKP 10 terminal to command the device.
The values displayed on the remote SKP 10 terminal can have up to 4 digits or 3 digits plus a sign.
The remote SKP 10 terminal can be used with the Energy Flex or Free Smart range in association with the XVD driver.
Refer to relative manuals for a full description of resources.
SKP 10
D
C B A
SKP10
1
esc
3
2
set
4
<IMG INFO>
No.
Key
1
UP
2
DOWN
3
ESC
4
set
Single press (press and release)
[press and hold]
Quick modification of overheating setpoint*
Increases a value / Goes to next label
Quick modification of overheating setpoint*
Decreases a value / Goes to previous label
Exit without saving new settings
Go back to previous level
Confirms value / exit and save new settings
Go to next level
(access to folder,sub-folder, parameter, value)
Access to State Menu
//
//
//
disp
[Main display]
See paragraph on
Main display
Prg
Esc+set keys pressed at the same time.
Opens Programming Menu
* Can also be modified from parameter dE32
3+4
esc+set
6.2.1
LED SKP 10
The display shows the value/resource set for the "main display".
In the event of an alarm, it will alternate with the alarm code Exx. (when more than one alarm occurs, the one with the
lowest number will be shown first).
LEDs
No.
A
Colour
Red
Description
Menu (ABC)
Note
B
Red
Pressure Display
(Bar)
Red
Temperature
Display (degrees
centigrade)
Alarm
Values are in relative bars.
If the value is Psi, the symbol is not
shown.
If the value is °F the symbol is not
shown.
C
D
6.3
Red
Access to folders - menu structure
Access to folders is organised into menus.
Access is determined by the keys on the front panel (see relative sections).
Access to each individual menu is explained below (or in the sections indicated).
There are 2 menus:
→ See "States Menu' section

"States" menu

"Programming" Menu
→ See 'Programming Menu' section
There are 3 folders/submenus in the Programming Menu:

Parameters Menu (PAr folder)

MFK menu (folder FnC)

PASS Password
2
→ See Parameters chapter
→ See Multi Function Key chapter
→ See Parameters chapter
79
ELECTRONIC
ELECTRONIC
EXPANSIONE
EXPANSION
VALVE
VALVE
CONTROL
CONTROL
- XVD420
6.3.1
Set main display
Main Display refers to the contents of the default display, i.e. when keys are not used.
XVD allows you to modify the main display to your own requirements. The various contents can be selected from the
"disp" menu which is opened by pressing and holding the [set] key for more than 3 seconds.
The main display can be selected from:
Label
Description
Value on display
drE1
Overheating temperature
AI3
Overheating probe
drE2
Refrigerant saturation
temperature
AI1
Saturation probe
drE5*
Backup probe overheating
temperature
Backup probe refrigerant
saturation temperature
Overheating
drE6
Refrigerant pressure
drE7
Percentage
valve opening
drE3
drE4
* default
N.B.


Value on display in
the event of a probe
error (backup)
AI4
Backup overheating
probe
AI2
Backup saturation
probe
AI4
---
AI2
---
Difference drE1-drE2
NA
AI2
When configuring
probe as backup
saturation probe
4..20mA or ratiometric
Otherwise, it shows
--
AI1
When configuring probe as
saturation probe
4..20mA or ratiometric
Analogue inputs are preconfigured during manufacture.
The probe display always shows temperatures (to see pressure values, see Input/Output Display).
Step by step instructions are provided below.
Set main display
SKP10
SKP10
SKP10
▄
►
►
To open the [disp] menu and modify the
main display setup, press and hold the
set key for at least 3 seconds.
This opens the blinking menu for the
previous display (in this case drE3).
To modify the display, use the "up" and
"down" keys to scroll through the menu
and press the set key to confirm.
When you have selected the type of
display (e.g. drE1), press the set key to
confirm. You will be automatically
returned to the main display set.
6.3.2
"States" menu
From the states menu you can view values for each resource.
Setpoints can be viewed and modified.
The resources may be present / not present depending on the model (e.g. dO2 is not present in XVD100).
Description
Main display
Label
80
rE
drE1
drE2
…
drE7
Ai
di
dO
AL
SP
dAi1
ddi1
ddO1
Er01
SP1
dAi2
ddi2
ddO2
Er02
SP2
dAi3
dAI4
…
SP3
Er15
SP4
Analogue inputs
Digital inputs
Digital outputs
Alarms
Setpoint
Change
NO
This is a view only menu; see the relative
paragraph for information on
configuration.
NO
NO
NO
NO
YES (SP4 excluded)
3
ELECTRONIC
ELECTRONIC
EXPANSIONE
EXPANSION
VALVE
VALVE
CONTROL
CONTROL
- XVD420
6.3.2.1
Programming the Set Point
Setpoint
SP1
SP2
SP3
SP4
Description
minimum overheating
setpoint
Maximum overheating
setpoint
MOP setpoint.
Dynamic overheating
temperature.
Settable from
Parameter
Note
If dE32 = 0
is intended as the only overheating setpoint
--If dE30 = 1
is intended as overheating target
dE32
Quick modification with UP and DOWN keys.
dE31
Valid if dE30=1
dE52
View only, not
modifiable.
Calculated
dynamically
expressed in units of temperature
If dE30 = 0 then the set is defined in dE32
Programming the setpoint
SKP10
SKP10
SKP10
▄
►
Example of SP1 configuration
To access the State Menu, press and
release the set key.
Label rE will appear on the display.
(Use the UP and DOWN keys to scroll
the other labels until you find the SP
label required)
►
Press the set key again to view the value
of SP1 (use the up and down keys to
view other setpoints).
Press the set key to view the label for
the first setpoint SP1.
To modify the display, press the up and
down keys and then the set key to
confirm.
Press the set key to confirm. You will be
automatically returned to the main
display set.
Rapid Setpoint SP1 programming
SKP10
SKP10
SKP10
esc
esc
set
set
►
Press the up and down keys to quickly
modify the setpoint.
►
The current setpoint value appears on
the display
To modify the value, press the up and
down keys and then the set key to
confirm.
4
▄
Press the set key to confirm. You will be
automatically returned to the main
display set.
81
ELECTRONIC
ELECTRONIC
EXPANSIONE
EXPANSION
VALVE
VALVE
CONTROL
CONTROL
- XVD420
6.3.2.2
Inputs/Outputs display
Inputs/Outputs display
SKP10
SKP10
SKP10
esc
esc
set
set
▄
<IMG INFO>
►
Example of view for Analogue Inputs.
The same procedure applies to all
other I/Os***
►
Press the set key to view the label for
the first analogue input (dAi1 in this
case).
To access the State Menu, press and
release the set key.
Press the set key again to view the value
of dAi1. Note that the °C icon lights up
to indicate that the value shown is in
degrees centigrade
-------------------------------------
Label rE will appear on the display.
Press the esc key to go back to the main
display.
(Use the UP and DOWN keys to scroll
the other labels until you find the Ai
label required)
***For digital inputs, the value will be:
- 0 = input not active (this is equivalent to input open)
- 1 = input active ( this is equivalent to input shortcircuited to ground)
6.3.2.3
Alarm Display (AL)
Alarm display
SKP10
SKP10
SKP10
esc
esc
set
set
<IMG INFO>
►
To access the State Menu, press and
release the set key.
Label rE will appear on the display.
(Use the UP and DOWN keys to scroll
the other labels until you find the AL
label required)
►
Press the set key to view the label of the
first active alarm (if it exists)
▄
In this case, the first alarm is Er01. Use
the UP and DOWN keys to scroll any
other alarms.
------------------------------------NOTE: the menu is not cyclical.
For example, if the active alarms are
Er01 and Er02, the display will show:
Er01 ->Er02<Er01
NOTE: -> UP, <-DOWN
Press the esc key to go back to the main
display.
82
5
XVD
ELECTRONIC EXPANSIONE VALVE CONTROL - XVD420
Electrical expansion valve table alarm XVD420
Code
Driver
input
Allarm
Cause
Effect
Alarm
type
Alarm
on main
controller
Input
on main
controller
Troubleshooting
ER01
AI1
Probe AI1 fault
Probe fault / shortcircuit / non
connected
Valve
closed
Automatic
er05
DI3
Check wiring of the probe,
replace probe AI1
ER03
AI3
Probe AI3 fault
Probe fault / shortcircuit / non
connected
Valve
closed
Automatic
er05
DI3
Check wiring of the probe,
replace probe AI3
ER06
AI1 - AI3
Errore uscita Probe AI1 AI3 fault / shortcircuit Valve
saturazione
/ non connected
closed
Automatic
er05
DI3
Check wiring of the probe,
replace probe AI1 AI3
ER07
-
MOP alarm
Saturation temperature >
setpoint MOP 20°C
for more than 255 s
Valve
closed
Automatic
er05
DI3
Wait for saturation
temperature < 20°C
ER10
-
NO link alarm
Serial communication fault
Valve
closed
Automatic
er05
DI3
Re-establish connection
ER11
W2- W2+
W1- W1+
Motor
protection
alarm
Excedeed absorbed current
Valve
closed
Manual *
er05
DI3
Check motor phases,
motor connections
ER12
W1- W1+
Motor
protection
alarm
Disconnection winding 1
Valve
closed
Manual *
er05
DI3
Check winding connection 1
(terminals 6-7)
ER13
W1- W1+
Motor
protection
alarm
Shortcircuit winding 1
Valve
closed
Manual *
er05
DI3
Check winding connection 1
(terminals 6-7)
ER14
W2- W2+
Motor
protection
alarm
Disconnection winding 2
Valve
closed
Manual *
er05
DI3
Check winding connection 2
(terminals 4-5)
ER15
W2- W2+
Motor
protection
alarm
Shortcircuit winding 2
Valve
closed
Manual *
er05
DI3
Check winding connection 2
(terminals 4-5)
Note:
* power off and on the driver/unit to reset
83
INVERTER
Operating setting procedure
Operating settings procedure.
-Be sure it is present the jumper between terminals MI1 and DCM.
- Power on the inverter .
To access the Delta VFD-EL settings:
- Ensure the inverter is in STOP mode by pressing
- Press
until the message appears
- To enter int the Frd menu press
.
. .
- At this point, we are in the main parameters menu .
-To access and modify the parameters, choose the parameter, press ENTER, change
value with the arrows keys and confirm with
- The modified parameter will be confirmed with the label
.
.
- At the end of the parameters settings, turn OFF and turn ON power supply, then check
that the RUN light is on and the STOP light is flashing .
Alarm
Note that the intervention of the inverter alarm stops the inverter and so stops the device controlled by the inverter with
the result of generating alarms on the main electronic controller: i.e. the alarm of the water pump inverter generates the
water pump thermal switch alarm.
Code
oc
ou
84
Input on
inverter
U-V-W
-
Alarm
Over current
Over voltage
Cause
Troubleshooting
Abnormal
increase in
current
1. Check if motor power corresponds with the AC motor drive output power
2. Check the wiring connections to U/T1, V/T2, W/T3 for possible short circuits
3. Check the wiring connections between the AC motor drive and motor for possible short circuits, also to
ground
4. Check for loose contacts between AC motor drive and motor
5. Increase the Acceleration Time
6. Check for possible excessive loading conditions at the motor
7. If there are still any abnormal conditions when operating the AC motor drive after a shortcircuit is
removed and the other points above are checked, it should be sent back to manufacturer
The DC bus
1. Check if the input voltage falls within the rated AC motor drive input voltage range
voltage has
2. Check for possible voltage transients
exceeded
3. DC-bus over-voltage may also be caused by motor regeneration. Either increase the Decel. Time or
its maximum
add an optional brake resistor (and brake unit)
allowable value
4. Check whether the required braking power is within the specified limits
INVERTER
Code
oH1
oH2
Input on
inverter
-
-
Alarm
Cause
Troubleshooting
Overheating
Heat sink
temperature too
high
1. Ensure that the ambient temperature falls within the specified temperature range
2. Make sure that the ventilation holes are not obstructed
3. Remove any foreign objects from the heatsinks and check for possible dirty heat sink fins
4. Check the fan and clean it
5. Provide enough spacing for adequate ventilation
Overheating
Heat sink
temperature too
high
1. Ensure that the ambient temperature falls within the specified temperature range
2. Make sure that the ventilation holes are not obstructed
3. Remove any foreign objects from the heatsinks and check for possible dirty heat sink fins
4. Check the fan and clean it
5. Provide enough spacing for adequate ventilation
Lu
-
Low voltage
oL
-
Overload
The AC motor
drive detects
the the DC bus
voltage has
fallen below its
minimum value
The AC motor
drive detects
excessive drive
output current
1. Check whether the input voltage falls within the AC motor drive rated input voltage range
2. Check for abnormal load in motor
3. Check for correct wiring of input power to R-ST (for 3-phase models) without phase loss
1. Check whether the motor is overloaded
2. Reduce torque compensation setting in Pr.07.02
3. Use the next higher power AC motor drive model
1. Check for possible motor overload
2. Check electronic thermal overload setting
3. Use a higher power motor
4. Reduce the current level so that the drive output current does not exceed the value set by the
Motor Rated Current Pr.07.00
oL1
-
Overload 1
Internal
electronic
overload trip
oL2
-
Overload 2
Motor overload
1. Reduce the motor load
2. Adjust the over-torque detection setting to an appropriate setting (Pr.06.03 to Pr.06.05)
HPF1
-
CC (Current
clamp)
Internal error
Return to factory
HPF2
-
OV hardware
error
Internal error
Return to factory
HPF3
-
GFF hardware
error
Internal error
Return to factory
HPF4
-
OC hardware
error
Internal error
Return to factory
bb
-
External base
block
External base
block
1. When the external input terminal (B.B) is active, the AC motor drive output will be turned off
2. Deactivate the external input terminal (B.B) to operate the AC motor drive again
-
Over-current
during
acceleration
Over-current
during
acceleration
1. Short-circuit at motor output: Check for possible poor insulation at the output lines
2. Torque boost too high: Decrease the torque compensation setting in Pr.07.02
3. Acceleration Time too short: Increase the Acceleration Time
4. AC motor drive output power is too small: Replace the AC motor drive with the next higher power
model
-
Over-current
during
deceleration
Over-current
during
deceleration
1. Short-circuit at motor output: Check for possible poor insulation at the output line
2. Deceleration Time too short: Increase the Deceleration Time
3. AC motor drive output power is too small: Replace the AC motor drive with the next higher power
model
ocA
ocd
ocn
-
EF
-
1. Short-circuit at motor output: Check for possible poor insulation at the output line
Over-current
Over-current
2. Sudden increase in motor loading: Check for possible motor stall
during constant during constant
3. AC motor drive output power is too small: Replace the AC motor drive with the next higher power
speed operation speed operation
model
External fault
External fault
1. When multi-function input terminals (MI3-MI9) are set to external fault, the AC motor drive stops
output U, V and W
2. Give RESET command after fault has been cleared
85
INVERTER
Code
Input on
inverter
Alarm
Cause
Troubleshooting
cF1.0
-
Internal
EEPROM
can not be
programmed
Internal error
Return to factory
cF1.1
-
Internal
EEPROM
can not be
programmed
Internal error
Return to factory
cF2.0
-
Internal
EEPROM can
not be read
Internal error
1. Press RESET key to set all parameters to factory setting
2. Return to the factory
cF2.1
-
Internal
EEPROM can
not be read
Internal error
1. Press RESET key to set all parameters to factory setting
2. Return to the factory
cF3.0
-
U-phase error
Internal error
Return to factory
cF3.1
-
V-phase error
Internal error
Return to factory
cF3.2
-
W-phase error
Internal error
Return to factory
cF3.3
-
OV or LV
Internal error
Return to factory
cF3.4
-
Temperature
sensor error
Internal error
Return to factory
cF3.5
-
Temperature
sensor error
Internal error
Return to factory
Ground fault
When (one of) the output terminal(s) is grounded, short circuit current is more than 50% of AC motor
drive rated current, the AC motor drive power module may be damaged
NOTE: The short circuit protection is provided for AC motor drive protection, not for protection of the
Ground fault
user
1. Check whether the IGBT power module is damaged
2. Check for possible poor insulation at the output line
OFF
-
cFA
-
Auto accel/decel Auto accel/
failure
decel failure
cE--
-
Communication
No
error
communication
codE
-
Aerr
AVIACM
Software
protection
failure
Analog signal
error
Fbe
AVIACM
PHL
-
AUE
-
CP10
-
PtC1
-
Motor overheat Possible motor
protection
overheat
1. Check if the motor is overheat
2. Check Pr.07.12 to Pr.07.17 settings
PtC2
-
Motor overheat Possible motor
protection
overheat
1. Check if the motor is overheat
2. Check Pr.07.12 to Pr.07.17 settings
86
1. Check if the motor is suitable for operation by AC motor drive
2. Check if the regenerative energy is too large
3. Load may have changed suddenly
1. Check the RS485 connection between the AC motor drive and RS485 master for loose wires and
wiring to correct pins
2. Check if the communication protocol, address, transmission speed, etc. are properly set
3. Use the correct checksum calculation
4. Please refer to group 9 in the chapter 5 for detail information
Internal error
Return to factory
No signal on
ACI
Check the wiring of ACI
PID feedback
signal error
No signal on
ACI
1. Check parameter settings (Pr.10.01) and AVI/ACI wiring
2. Check for possible fault between system response time and the PID feedback signal detection
time (Pr.10.08)
Phase loss
Loss of a input
phase
Check input phase wiring for loose contacts
Auto tuning
Auto tuning
error
feature failure
Communication
time-out error
Communication
on the control
time-out
board or power
board
1. Check cabling between drive and motor
2. Retry again
1. Press RESET key to set all parameters to factory setting
2. Return to the factory
PROBE CHARACTERISTICS
NTC10K-25°C type temperature probes are used.
When the probe bulb is at a temperature of 25°C the electrical resistance measurable at the probe ends with a multimeter is approx.
10 kW. The thermistor of these probes has a negative temperature coefficient: the electrical resistance value decreases as the temperature increases.
To find out if a temperature probe is faulty or disconnected, check the correspondence between the resistance value in kW and the
bulb temperature in °C according to the following table.
Temperature [°C]
Resistance [kΩ]
Temperature [°C]
Resistance [kΩ]
Temperature [°C]
Resistance [kΩ]
0
25,7950
20
12,2110
40
5,7805
1
24,8483
21
11,7628
41
5,5683
2
23,9363
22
11,3311
42
5,3640
3
23,0578
23
10,9152
43
5,1671
4
22,2115
24
10,5146
44
4,9774
5
21,3963
25
10,1287
45
4,7948
6
20,6110
26
9,7569
46
4,6188
7
19,8546
27
9,3988
47
4,4493
8
19,1259
28
9,0539
48
4,2860
9
18,4239
29
8,7216
49
4,1287
10
17,7477
30
8,4015
50
3,9771
11
17,0963
31
8,0931
51
3,8312
12
16,4689
32
7,7961
52
3,6906
13
15,8644
33
7,5100
53
3,5551
14
15,2822
34
7,2343
54
3,4246
15
14,7213
35
6,9688
55
3,2989
16
14,1810
36
6,7131
56
3,1779
17
13,6605
37
6,4667
57
3,0612
18
13,1592
38
6,2293
58
2,9489
19
12,6762
39
6,0007
59
2,8406
For a reliable check it is not necessary to control each single value, but just several sample values. If the instrument gives an infinite
resistance, this means the probe is disconnected.
Example. With a temperature of 20°C on the probe, the ohmmeter display will indicate approx. 12.21 kΩ
Tester displaying ohm with an
adequate scale
Room
temperature
20°C
Probe in
question
87
MAINTENANCE
General Rules
Maintenance is of extreme importance if the plant is to operate in a regular way and give fade-free service. Have extraordinary maintenance work done by qualified and authorized personnel, according to EU Regulation 303/2008 of 2 April 2008 (and later) that requires
companies and technicians that perform maintenance / repair, leakage checking and recovery / recycling gases must be certified as
required by local regulations. Comply with the safety precautions given in the relative section of this manual and take all the necessary
precautions. The following information is only a guide for the end user.
Maintenance keeps unit efficiency, reduce the speed of deterioration over time and collect information and data to understand the
efficiency of the unit and prevent failures. We suggest to prepare a booklet of installation according European legislation.
Routine maintenance
The inspections described below, to which the unit must be subjected, do not require specific technical know-how.
They merely include a few simple inspections involving certain parts of the unit.
Call an authorized assistance center if actual maintenance work is required.
The table below gives a recommended list of inspections which should be carried out at the indicated intervals.
Provide controls and interventions more frequently in case of heavy (continuous or intermittent high, close to operating limits, etc ...)
or critical (essential service such as data centres, hospital etc ...) use.
DESCRIPTION
Visual inspection of the unit
Inspection of hydraulic circuit
Inspection of electrical system
Inspection of condensing system
Inspection and adjustment of operat. parameters
WEEKLY
MONTHLY
EVERY SIX MONTHS
•
•
•
•
•
• Structure of the unit
When checking the condition of the parts that form the structure of the unit, pay particular attention to the parts liable to rust.
If traces of rust are noted, they must be treated with rust-inhibitor paint in order to eliminate or reduce the problem.
Check to make sure that the external panels and the fans of the unit are well fixed.
Bad fixing gives rise to noise and abnormal vibrations.
• Hydraulic circuit
Check visually to make sure that there are no leaks in the hydraulic circuit. If the pumping module accessory is installed, it is advisable
to make sure that the water filter is clean.
• Electrical system
Make sure that the power cable that connects the unit to the distribution panel is not torn, cracked or damaged in a way that could
impair its insulation.
88
MAINTENANCE
• Inspection of the condensing system
WARNING: The finned pack exchanger has fins made of aluminium or some other thin material, thus even accidental contact could
cause cuts. Comply with the instructions in the relative section.
• Condensing coils
In view of the function of this component, it is very important for the surface of the exchanger to be as free as possible from clogging
caused by items that could reduce the fan’s air flow rate and, thus, the performances of the unit itself.
The following operations may be required:
- Remove all impurities (such as paper scraps, leaves, etc.) that could be clogging the surface of the bank either by hand or using a
brush (comply with the above mentioned safety prescriptions).
- If the dirt has deposited on the fins and is difficult to remove by hand, use a flow of compressed air or pressurized water on the
aluminium surface of the coils, remembering to direct the flow in a vertical and opposite to the standard flow direction to prevent the
fins from being damaged.
- “Comb” the coils with the relative tool, using the appropriate comb spacing for the fins if some parts of them are bent or squashed.
• Helical electric fans
Visually inspect these parts to make sure that the electric fans are well fixed to the bearing grille and that this latter is fixed to the
structure of the unit. Check the fan bearings, causing abnormal noise and vibration, and close the terminal box and cable glands.
• Water heat exchanger
The exchanger must ensure the maximum heat transfer possible so keep it clean and free from dirt that may reduce efficiency; make
sure that the temperature difference between water outlet temperature and evaporation does not increase over time, if the difference
exceeds 8 -10 ° C is necessary to proceed cleaning the water side of the exchanger, keeping in mind the following: water circulation
must be in the opposite direction than normal, the fluid velocity does not exceed 1.5 times the nominal velocity and use just water or
moderately acid products but only water for final washing.
• Water filter
Make sure to clean the filter and remove any impurities that block the proper flow of water, contributing to increase pressure drop and
therefore energy consumption of the pumps.
• Water pumps (if present)
Check leakage, the state of the bearings (any anomalies are highlighted by noise and vibration), the closing of the terminal box and
integrity of the cable.
• Reading and adjustment of the operating parameters
This control can be done using the pressure gauges (if installed) of the refrigerant circuits and using the pressure and temperature
gauges (if installed) of the hydraulic circuits of the unit (evaporator + heat recovery - if present)
Provide a unit book that allows you to track of the actions taken on the unit, so it will be easier to cadence adequately the
various interventions and will facilitate a possible troubleshooting.
Please take note of: date, type of action, description of action, measurements performed, anomalies identified, alarms registered in the alarm history, etc. ...
89
MAINTENANCE
General considerations
The unit has been designed with a view to reducing the risks to persons and the environment in which it is installed, to the minimum.
To eliminate residue hazards, it is therefore advisable to become as familiar as possible with the unit in order to avoid accidents that
could cause injuries to persons and/or damage to property.
a. Access to the unit
Only qualified persons who are familiar with this type of unit and who are equipped with the necessary safety protections (footwear,
gloves, helmet, etc.) may be allowed to access the unit. Moreover, in order to operate, these persons must have been authorized by
the owner of the unit and be recognized by the actual Manufacturer.
b. Elements of risk
The unit has been designed and built so as not to create any condition of risk. However, residue hazards are impossible to eliminate
during the planning phase and are therefore listed in the following table along with the instructions about how to neutralize them.
Part in question
Compressor and delivery
pipe
Residue hazard
Mode
Precautions
Burns
Contact with the pipes and/or compressor
Avoid contact by wearing
protective gloves
Excessive pressure
Turn off the unit,
check the high pressure switch
and safety valve,
the fans and condenser
Leaking refrigerant
Do not pull on the pipes
Delivery pipes, heat recovery
exchanger and coils
Explosion
Pipes in general
Ice burns
Electrical cables, metal parts
Electrocution, serious burns
Heat exchange coils
Cuts
Fans
Cuts
Defective cable insulation, live metal Adequate electrical protection (corparts
rectly ground the unit)
Contact
Wear protective gloves
Contact with the skin
Do not push the hands or objects
through the fan grille
c. Pollution
The unit contains refrigerant gas and lubricating oil. When scrapping the unit these fluids must be recovered and disposed of in
compliance with the regulations in force in the country where it is installed. The unit must not be abandoned during the scrapping
stage, but can be stored outside with gas, water and electrical connections closed.
d. Disconnection and disposal
During disconnection of the unit, avoid gas leakage or liquid spillage on environment, especially if the water has additives
or glycol. For dismissing and disposal, deliver the units to specialized centres according to your national laws.
90
SAFETY AND POLLUTION
Refrigerant safety card
1 SUPPLIER COMPANY AND PRODUCT IDENTIFICATION
Card No.
FRIG 8
ProductR-410A
Supplier company identification
RIVOIRA SpA
2 COMPOSITION / INFORMATION ON INGREDIENTS
Substance / Preparation
Preparation
Components / Impurities
Contains the following components :
Difluoromethane (R32)50 % in weight
Pentafluoroethane (R125)
50 % in weight
EEC No.
Non-applicable for mixtures
Trade-name
//
3 IDENTIFICATION OF HAZARDS
Identification of hazards
Liquefied gas.
The vapours are heavier than air and can cause suffocation, reducing the oxygen available for
breathing.
Rapid evaporation of the fluid can cause freezing.
Can cause cardiac arrhythmia.
4 FIRST-AID MEASURES
Inhalation
Do not administer anything if the person has fainted.
Take the person outdoors. Use oxygen or artificial respiration if necessary.
Do not administer adrenaline or similar substances.
Contact with eyes
Rinse thoroughly with plenty of water for at least 15 minutes and see a doctor.
Contact with skin
Wash immediately with plenty of water. Immediately remove all contaminated garments.
Swallowing
5 FIRE-PREVENTION MEASURES
Specific hazards
Increase in pressure.
Dangerous fumes
Halogen acids, traces of carbonyl halides.
Fire-extinguishing means usable
All the known fire-extinguishing means can be used.
Specific methods
Cool the containers/tanks with water sprays.
Special protection equipment
Use self-contained breathing apparatus in confined spaces.
6 MEASURES AGAINST ACCIDENTAL SPILLING OF THE PRODUCT
Personal protection
Evacuate personnel to safe areas. Provide for adequate ventilation. Use personal protection equipment
Protection for the environment
It evaporates.
Product removal methods
It evaporates.
7 HANDLING AND STORAGE
Handling and storage
Ensure an adequate air change and/or extraction in the workplaces. Only use well-ventilated rooms.
Do not breathe vapours or aerosols. Carefully close the containers and keep them in a cool, dry and
well-ventilated place. Keep in the original containers.
Incompatible products
Explosives, flammable materials, organic peroxides.
8 CONTROL OF EXPOSURE / PERSONAL PROTECTION
Personal protection
Ensure adequate ventilation, especially in closed areas.
Control parameters
Difluoromethane (R32): Recommended exposure limits: AEL (8h and 12h TWA) = 1000 ml/m3
Pentafluoroethane (R125): Recommended exposure limits: AEL (8h and 12h TWA) = 1000 ml/m3
Respiratory tract protection
For rescue and for maintenance works in tanks, use self-contained breathing apparatus. The vapours are heavier than air and can cause suffocation, reducing the oxygen available for breathing.
Eye protection
Total protection glasses.
Hand protection
Rubber gloves.
Hygiene measures
Do not smoke.
9 CHEMICAL-PHYSICAL PROPERTIES
Relative density, gas (air=1)
Heavier than air.
Solubility in water (mg/l)
Not known, but deemed very low.
Appearance
Colourless liquefied gas.
Odour
Similar to ether.
Fire point
Does not ignite.
10 STABILITY AND REACTIVITY
Stability and reactivity
No decomposition if used according to the special instructions.
Materials to be avoided
Alkali metals, alkali-earth metals, granulated metal salts, Al, Zn, Be, etc. in powder.
Hazardous products of decomposition
Halogen acids, traces of carbonyl halides.
11 TOXICOLOGICAL INFORMATION
Local effects
Concentrations substantially above the value TLV (1000 ppm) can cause narcotic effects. Inhalation
of highly concentrated products of decomposition can cause respiratory insufficiency (pulmonary
oedema).
Long-term toxicity
No carcinogenic, teratogenic or mutagenic effects have been recorded in experiments on animals.
Specific effects
Rapid evaporation of the fluid can cause freezing. Can cause cardiac arrhythmia.
12 ECOLOGICAL INFORMATION
Effects linked to ecotoxicity
Pentafluoroethane (R125)
Potential global warming with halocarbides; HGWP (R-11 = 1) = 0.84
Potential impoverishment of the ozone; ODP (R-11 = 1) = 0
13 CONSIDERATIONS ON DISPOSAL
General
Do not dispose of where accumulation can be hazardous.
Usable with reconditioning.
The depressurised containers must be returned to the supplier.
Contact the supplier if instructions for use are deemed necessary.
91
SAFETY AND POLLUTION
14 INFORMATION FOR TRANSPORT
Designation for transport
LIQUEFIED GAS N.A.S.
( DIFLUOROMETHANE, PENTAFLUOROETHANE )
UN No.
3163
Class/Div2.2
ADR /RID No.
2, 2nd A
ADR/RID hazard no.
20
ADR label
Label 2 : non-toxic non-flammable gas.
CEFIC Groupcard
20g39 - A
Other information for transport
Avoid transport on vehicles where the loading zone is not separate from the cab.
Make sure the driver is informed about the potential risk of the load and knows what to do in case of
accident or emergency.
Before starting transport, make sure the load is properly secured and :
make sure the valve of the container is closed and does not leak;
make sure the blind cap of the valve (when provided) is correctly fitted;
make sure the cap (when provided) is correctly fitted and that there is an adequate ventilation passage;
ensure compliance with the current provisions.
15 INFORMATION ON REGULATIONS
The product must not be labelled according to Directive 1999/45/EC.
Comply with the regulations given below, and the relevant applicable updates and amendments.
Circulars no. 46/79 and 61/81 of the Ministry of Labour : Risks related to the use of products containing aromatic amines
Leg. Decree no. 133/92 : Regulations on the discharge of hazardous substances in waters
Leg. Decree no. 277/91 : Protection of workers against noise, lead and asbestos
Law 256/74, Decree 28/1/92, Leg. Decree no. 52 dated 3/2/97, Decree dated 28/4/97 as amended : Classification, packing and labelling of hazardous substances and preparations
Decree no. 175/88, as amended : Activities with significant accident risks (Seveso Law)
Decree no. 203/88 : Emissions into the atmosphere
Decree no. 303/56 : Work hygiene
Decree no. 547/55 : Regulations on accident prevention
Leg. Decree no.152 dated 11/5/99 : Protection of waters
16 OTHER INFORMATION
Recommended uses
Refrigerant
Can cause suffocation in high concentration.
Keep in a well-ventilated place.
Do not breathe the gas.
The risk of suffocation is often underestimated and must be clearly explained during the training of operators.
Ensure compliance with all the national and regional regulations.
Before using this product in any new process or trial, an in-depth study on safety and compatibility of the product with the materials must be carried
out.
The above information is based on our current know-how and describes the product according to the safety requirements. It does not however
represent a guarantee and assurance of the qualities in a legal sense. Each person responds personally for compliance with such regulations.
First aid
• Move the victim away from the toxic source, keep him warm and allow him to rest.
• Administer oxygen if necessary.
• Proceed with artificial respiration if necessary.
• Give heart massage in the case of heart failure.
• Immediately seek medical help.
Contact with the skin:
• Immediately thaw the affected parts under running lukewarm water.
• Remove contaminated clothing (garments may stick to the skin in the case of ice burns) if they have not adhered to the skin.
• Seek medical assistance if necessary.
Contact with the eyes:
• Immediately rinse the eyes with physiologic eyewash or clean water for at least 10 minutes with the eyelids pulled open.
• Seek medical assistance if necessary.
Swallowing:
• Do not make the victim vomit. If the victim is conscious, have him rinse his mouth out with clean water and then drink 200, 300 ml
of water.
• Immediately seek medical help.
• Do not administer adrenaline or sympathomimetic drugs after exposure owing to the risk of cardiac arrhythmia.
For further information about the characteristics of the refrigerant, consult the technical briefs that can be obtained from manufacturers of refrigerant products.
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The manufacturer declines all responsibility for any inaccuracies in this manual due to printing or typing errors.
The manufacturer reserves the right to modify the products contents in this catalogue without previous notice.
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COD. 3QE33151
Ferroli spa ¬ 37047 San Bonifacio (Verona) Italy ¬ Via Ritonda 78/A
tel. +39.045.6139411 ¬ fax +39.045.6100933 ¬ www.ferroli.it
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