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ZX Platform Condensing Unit
User Manual
Index
Disclaimer............................................................................................................................................ 1
Introduction To ZX Platform CDU......................................................................................................... 1
Receiving Your Unit............................................................................................................................... 1
Features And Value............................................................................................................................... 1
Nomenclature...................................................................................................................................... 2
Bill Of Material (BOM)........................................................................................................................... 2
Physical Layout..................................................................................................................................... 3
Product Specification
Qualified Refrigerants And Oils .................................................................................................................... 4
E2 Control Board - Rotary Switch And Dip Switch Setting (ZX-MT & ZXL-LT).................................................. 5
Defrost Module Function Set....................................................................................................................... 6
Digital Scroll Controller (ZXD)...................................................................................................................... 6
Installation
Condensing Unit Handling........................................................................................................................... 7
Electrical Connection................................................................................................................................... 7
Refrigeration Connection............................................................................................................................. 8
Location and Fxing....................................................................................................................................... 9
Start Up & Operation............................................................................................................................. 10
Diagnostic Initialization Message (ZX-MT and ZXL-LT)............................................................................ 10
Diagnostic Messaging - LED Definition (ZX-MT and ZXL-LT)..................................................................... 11
Alarm Messaging - Digital Scroll Controller (ZXD).................................................................................. 11
Wiring Diagram.................................................................................................................................... 12
Contact Lists......................................................................................................................................... 17
1
ZX Platform CDU
Disclaimer
Thank you for purchasing the ZX platform condensing unit from Emerson Climate Technologies. ZX platform CDUs are the best in class within the capacity and operating range available in the market. ZX CDU is designed to operate reliably and to deliver high operating efficiencies in medium and low temperature refrigeration applications. It also provides constant monitoring of the compressor operating conditions and displays the running or fault conditions of the CDU. ZX platform CDUs have to be installed by following the industry trade practices for its safe and reliable operation. It is assumed that the CDU is selected, installed and serviced only by professionals. The user manual does not cover good industry practices which are essential on a refrigeration equipment installation. No responsibility can be accepted for damage caused by inexperienced or inadequately trained site technicians or improper installation design.
If in doubt, please consult your local sales office, quoting unit model and serial number as shown on each unit nameplate. In case of any ambiguity, the wiring diagram supplied with each unit takes precedence over the diagram in this manual.
Introduction to ZX Platform CDU
ZX medium temperature, ZXD digital medium temperature and ZXL low temperature series have been highly successful in the
Asian market and enjoys proven success with its energy savings and customer-friendly electronic features. ZX, ZXD and ZXL
CDUs have been applied by several well known end-users and chain retailers throughout Asia. The ZX platform is also gaining wider acceptance in the global market and specific variants have been developed and exported to the USA and to the European and Middle East markets.
Receiving your unit
All units are shipped with a holding charge of dry nitrogen inside at a low but positive pressure. Suitable labeling is prominently displayed on both the unit and the packaging. Service connectors are provided on the CDU service valve for the convenient checking of the integrity of the holding charge.
Caution!
It is very important to check that this holding pressure exists at the time you receive each unit from us or our authorized representatives. Please inform us or our authorized representative if the holding charge is non-existent. Failure to do so could void the claim for other related system faults at a later period.
Transit damage is essentially an insurance claim and is not covered under manufacturing defect. It is also advisable to inspect the rest of the unit for obvious physical damage and inform us or our authorized representative in case any is discovered.
ZX Platform Condensing Unit was designed based on three factors demanded by industry users:
Energy Efficiency
- Utilizing Copeland Scroll ® compressor technology, variable speed fan motor, large capacity condenser coil and advanced control algorithms, energy consumption is significantly reduced. End-users can save more than 20% on annual energy costs rather than using hermetic reciprocating units.
Reliability
- Combining the proven reliability of Copeland Scroll ® compressors with advanced electronics controller and diagnostics, equipment reliability is greatly enhanced. Fault code alerts and fault code retrieval capabilities provide information to help improve speed and accuracy of system diagnostics. Integrated electronics provide protection against over-current, over-heating, incorrect phase rotation, compressor cycling, high pressure resets, low pressure cut-outs. It can also send out a warning message to an operator when there is a liquid floodback, which can prevent critical damage on the unit.
Flexibility
- The slim shape and light weight make the ZX Condensing Unit aesthetically appealing and eases the installation process. The ultra quiet variable-speed fan motor significantly reduces exterior sound levels, allowing additional location flexibility. Combined with wall mounting capability, the ZX Condensing Unit delivers unmatched flexibility.
ZX Condensing Units are greatly suitable for walk-in cooler and freezer applications.
The advance scroll compressor technology, fan speed control and electronic controller are precisely collaborated in all units. It also introduces variable-speed fan motors that go beyond national standards. Guaranteed dependable performance and operation in foodservice applications while conveying higher energy efficiency and lower sound levels are the main objectives.
ZX Platform Condensing Unit
ZXD Series
Variable Speed Fan
Motor and High
Efficiency Fan Blade
Oversized Condenser
Coil for Maximum Heat
Transfer
Diagnostic Protection
Flexibility
Highest Efficiency
- Shuts down unit during failure
- With real time monitoring of compressor operating conditions
Increased Reliability and Lower Maintenance Costs
More Installation Options
Lower Energy Bills
ZX and ZXL Series
Proprietary Electronic Algorithms to Control Fan Speed,
Optimizing Energy Performance for Local Seasonal Ambient
Temperatures
Diagnostic
Digital
Messaging
Built-in ZX
Platform
Controller
• Compressor Reverse Rotation
• Compressor Over Current
• Compressor Internal Motor
Protector Trip
• Discharge Gas Over Heat
• High Pressure Cut Out
• Low Pressure Cut Out (only on
MT series)
• Refrigerant Flood Back
• Compressor Minimum Off Time
• Internal Thermal Sensor Failure
Copeland Scroll Compressor Technology
– High Efficiency, Ultra Quiet, High
Reliability
Figure 01.
ZX Platform CDU Features
Nomenclature
Z X L 0 2 0 E T F D 4 5 1
Base Model
BOM
CDU Family
BOM
Liquid Line Filter Dryer/Sight Glass
Oil Separator
Accumulator
Adjustable LP Switch
Fixed LP Switch
E2 Controller
Diagnostic Module
Buzzer
Digital Scroll Controller
Fan Speed Controller
Circuit Breaker
Sound Jacket
Defrost Module
Filter Drier
401
ACC
Notes: - E2 controller has fan speed control function
- “V” indicates flare type connection
- “ACC” indicates accessory
ZX
451
ACC
Electrical Code
451
ACC
ZXL
461
Bill of Material
471
ACC
V
450
ZXD
451 461
2
Physical Layout
The following figures give an introduction to the physical layout of the ZX Platform CDU.
Figure 02: Identifies the Electronic controller assembly on a ZX platform CDU.
ZX- MT, ZXL-LT E2 Controller
* ZXD Digital Scroll Controller
Scroll Compressor
* ZXD Digital scroll controller not shown in Fig. 02. See Fig. 05 for LED and keypad
Figure 03: Identifies other major components layout on a ZX platform CDU.
3
Oil Separator
(Optional In MT CDU)
Liquid Receiver
Liquid Sight Glass/
Moisture Indicator
Liquid Filter Drier
Service Valve
Receiver Out Service Valve
Compressor Oil Sight Glass
Figure 04: Shows the layout of the E2 controller, electrical components, dip switches and rotary switch in the E2 control board.
E2 Power Board
Power Isolation Switch
Rotary Switch
E2 Control Board
3-Bit Dip Switch
2-Bit Dip Switch
Compressor Contactor Diagnostic Module
Fuse Holder
Defrost Module
(optional)
Electrical Cable connectors
Figure 05: Shows LED and keypad of ZXD digital scroll controller.
ZX Platform Condensing Unit
Enter Alarm
Manual Restart
Setup Menu
Condenser temperature display
Program Mode: browses parameter codes or increase value
Hot Key Insert : Hot key programming procedure
INFO Menu: Press and release it to access
INFO Menu
Program Mode: below parameter codes or decrease value
Maintenance /Clock
Product Specification
For application envelope, envelope varies according to applications and refrigerants. Please refer to ZX platform product catalogue, product manual, or Copeland ® Brand Products Selection Software.
Qualified refrigerants and oils
REFRIGERANT
R404A/507
R22
OIL
Emkarate RL 32 3MAF
Mobil EAL Artic 22 CC
Suniso 3GS
Oils are pre-charged in both compressor and oil separator. Total oil volume (liter) for each unit is shown in the table below:
ZX ZXD ZXL
Model
ZX0200/E
ZX0250/E
ZX0300/E
ZX0400/E
ZX0500/E
ZX0600/E
ZX0750/E
ZX0760/E
401
1.18
1.33
1.33
1.83
1.83
1.66
1.66
1.66
BOM
451
1.68
1.83
1.83
2.33
2.33
2.16
2.16
2.16
Model
ZXD0400/E
ZXD0500/E
ZXD0600/E
ZXD0750/E
BOM
ALL
1.74
2.27
2.27
2.27
Model
ZXL0200/E
ZXL0250/E
ZXL0300/E
ZXL0350/E
ZXL0400/E
ZXL0500/E
ZXL0600/E
ZXL0750/E
BOM
ALL
1.74
1.74
2.27
2.27
1.06
1.06
1.06
1.74
4
5
E2 Control Board - Rotary Switch And Dip Switch Setting (ZX-MT & ZXL-LT)
Model
ZX0200/E-PFJ
ZX0250/E-PFJ
ZX0300/E-PFJ
ZX0400/E-PFJ
ZX0200/E-TFD
ZX0300/E-TFD
ZX0400/E-TFD
ZX0500/E-TFD
ZX0600/E-TFD
ZX0750/E- 760/E-TFD
ZX0200/E-TF5
ZX0300/E-TF5
ZX0400/E-TF5
ZX0500/E-TF5
ZX0600/E-TF5
ZX0750/E- 760/E-TF5
ZX0200/E-TF7
ZX0300/E-TF7
ZX0400/E-TF7
ZX0500/E-TF7
ZX0600/E-TF7
ZX0750/E- 760/E-TF7
ZXL0200/E-TFD
Rotary
Switch
3
4
1
2
4
5
6
2
3
A
1
7
8
9
A
A
8
9
B
1
5
6
7
3-Bit
No. 3
2-Bit 1/2
OFF
OFF
OFF
ON
ON
ON
ON
OFF
OFF
OFF
OFF
OFF
OFF
OFF
ON
ON
ON
ON
ON
ON
ON
ON
OFF
ON/ON
ON/ON
ON/ON
OFF/OFF
ON/ON
ON/ON
ON/ON
ON/ON
ON/ON
ON/ON
ON/ON
ON/ON
ON/ON
OFF/OFF
OFF/OFF
OFF/OFF
ON/ON
ON/ON
ON/ON
ON/ON
ON/ON
ON/ON
ON/ON
Model
ZXL0250/E-TFD
ZXL0300/E-TFD
ZXL0350/E-TFD
ZXL0400/E-TFD
ZXL0500/E-TFD
ZXL0600/E-TFD
ZXL0750/E-TFD
ZXL0200/E-TF5
ZXL0250/E-TF5
ZXL0300/E-TF5
ZXL0350/E-TF5
ZXL0400/E-TF5
ZXL0500/E-TF5
ZXL0600/E-TF5
ZXL0750/E-TF5
ZXL0200/E-TF7
ZXL0250/E-TF7
ZXL0300/E-TF7
ZXL0350/E-TF7
ZXL0400/E-TF7
ZXL0500/E-TF7
ZXL0600/E-TF7
ZXL0750/E-TF7
Rotary
Switch
6
7
4
5
8
2
3
1
1
6
7
8
4
5
2
3
C
D
D
A
B
8
9
3-Bit
No. 3
2-Bit 1/2
ON
ON
ON
ON
ON
ON
ON
ON
ON
OFF
OFF
OFF
OFF
OFF
OFF
OFF
ON
ON
ON
ON
ON
ON
ON
ON/ON
ON/ON
ON/ON
ON/ON
ON/ON
ON/ON
ON/ON
ON/ON
ON/ON
ON/ON
OFF/OFF
OFF/OFF
OFF/OFF
OFF/OFF
OFF/OFF
ON/ON
ON/ON
ON/ON
ON/ON
ON/ON
ON/ON
ON/ON
ON/ON
OFF: Evaporator fan ON/OFF logic is same as compressor and this is the factory default setting.
ON: Evaporator fan will be ON for all time irrespective of whether the compressor is turned ON or OFF
Not applicable
Use setting in the table
ON
1 2 3
Notes: The settings given in the table are pre-set at the factory for new units .
ZX Platform Condensing Unit
Defrost Module Function Set
Time of Defrost Time of Defrost Interval
Rotary
Switch1
2
3
4
0
1
5
6
7
Time(min)
0
5
10
15
20
25
30
35
Rotary
Switch2
2
3
4
0
1
5
6
7
Time
(hours)
2
3
4
0
1
5
6
7
Manual Defrost
Button
Remote Connector
For Manual Defrost
Defrost Duration (in Minutes)
Defrost Interval
(In Hours)
E2 Connector
Figure 06
Figure 06: ZX Platform Defrost Module
Digital Scroll controller (ZXD)
The controller has been pre-programmed with a number of parameter values that are set for typical application. Individual installation requirements, however, may make it necessary to alter parameter settings. The control target of the digital scroll compressor controller is to maintain the suction pressure (or saturated suction temperature) at a defined value by varying the available compressor capacity. The set-point can be altered using the SEtC parameter. Factory setting SEtC is -6 o C.
The control target of the fan speed controller is to maintain the average condenser mid-coil temperature and hence the average discharge pressure at a defined value. This is achieved by varying the fan speed. The set-point can be altered using the SEtF parameter. Factory setting SEtF is 25 o C.Initial setting of set point for saturated suction temperature.Pre-set value is located in the
SEtC position as shown in the diagram below:
press for more than 2 sec
SEtC value
Flashing
or to change set value within 30 seconds
press to memorize new set value.
Then SEtF (fan speed control set point) will be displayed automatically.
SEtC value
Flashing
or to change set value within 30 seconds
press to memorize new value and Exit, or wait for
30 seconds without pressing any key to memorize value and exit
6
Installation
Copeland ZX condensing units are delivered with a holding charge of neutral gas. The condensing unit should be located in such a place to prevent any dirt, plastic bag, leaves or papers from covering the condenser and its fins. The unit must be installed without restricting the airflow. A clogged condenser will increase the condensing temperature, thus reduce the cooling capacity, and lead to a high-pressure switch tripping. Clean the condenser fins on a regular basis.
Condensing Unit Handling
Transport And Storage
Move ZX/ZXD/ZXL unit only with appropriate mechanical or handling equipment according to weight. Keep in the upright position. Do not stack single boxes on top of each other without pallet in any case. Keep the packaging dry at all times.
Storage
2 max
300 Kg
1
Transport
2 max
300 Kg
1
Net Weight
ZX
Model
ZX0200/E
ZX0250/E
ZX0300/E
ZX0400/E 1
ZX0500/E
ZX0600/E
ZX0750/E
ZX0760/E
Weight (kg)
108
112
118
121
76
79
79
91
Model
ZXD0400/E 2
ZXD0500/E 3
ZXD0600/E 4
ZXD0750/E 5
ZXD
Weight (kg)
104
112
114
122
Model
ZXL0200/E
ZXL0250/E
ZXL0300/E
ZXL0350/E
ZXL0400/E
ZXL0500/E
ZXL0600/E
ZXL0750/E
ZXL
Weight (kg)
93
106
116
121
79
81
81
93
7
Notes:
1 100 kg for models under 60 Hz TF5/7 and 50 Hz PFJ
2 109 kg for models under 60 Hz TF7
3 117 kg for models under 60 Hz TF7
4 121 kg for models under 60 Hz TF7
5 127 kg for models under 60 Hz TF7
Electrical Connection
Power supply
The ZX condensing unit electrical connection to the power supply must be made by qualified technicians, who should refer to the electrical diagrams located inside the electric connection panel. The units are designed for below power supply at ±
10% voltage tolerance. The circuit breaker must be switched off before opening the front panel.
Codes
PFJ
TFD
TF7
TF5
HZ
50
50
60
60
Phase
1
3
3
3
Voltages
220/240
380/420
380
200/230
Electrical wiring
Before commissioning, ensure that neutral “N” wire is connected to the terminal block (“N” furthest to the right). After proper connection of the ZX condensing unit, the control LED on the power board and control board will light. For more details, see wiring diagram in Appendix.
ZX Platform Condensing Unit
Refrigeration connections
Refrigeration piping installation
All interconnecting pipes should be of refrigeration grade, clean, dehydrated and must remain capped at both ends until installation. Even during installation, if the system is left for any reasonable period of time (say two hours), pipes should be recapped to prevent moisture and contaminants from entering the system.
Do not assume that the service connection sizes on the unit (at the service valves) are the correct size to run your interconnecting refrigeration pipes. The service valve sizes have been selected for convenience of installation and in some cases (larger units) these may be considered too small. However for the very short pipe run within our units, these service connection sizes are adequate. All interconnecting pipes should be sized to satisfy the duty required.
Usually the suction line is insulated, but the liquid line is not. However the liquid line can pick up additional heat from the ambient and adversely affect the sub-cooling desirable for the liquid refrigerant before it enters the expansion valve.
The pipe should be sized to ensure optimum performance and good oil return. The sizing must also take into account the full capacity range through which this particular unit will need to operate.
Pipe runs should be kept as short as possible, using the minimum number of directional changes. Use large radius bends and avoid trapping of oil and refrigerant. This is particularly important for the suction line. The suction line should ideally slope gently towards the unit. Recommendation slope is 1/200~1/250. P traps, double risers and reduced pipe diameters may be required for suction lines where long vertical risers cannot be avoided. All pipes should be adequately supported to prevent sagging which can create oil traps. The recommended pipe clamp support distance is shown in the table.
Tube Size
12.7mm (1/2 inch)
16.0mm (5/8 inch)
22.0mm (7/8 inch)
28.5mm (1 1/8 inch)
Max distance between
2 clamp support
1.20 m
1.50 m
1.85 m
2.20 m
ZXL liquid line insulation
ZXL liquid line should be insulated with a 19 mm insulation thickness. Temperature could be as low as –15°C.
Brazing recommendations
Maintain a flow of oxygen-free nitrogen through the system at a very low pressure during brazing. Nitrogen displaces the air and prevents the formation of copper oxides in the system. If copper oxidization is allowed to form, the copper oxide material can later be swept through the system and block screens such as those protecting capillary tubes, thermal expansion valves, and accumulator oil return holes. This minimizes any entry of contaminants and moisture.
• Remove the liquid line connection cap.
• Then remove the suction connection cap.
• Open both valves midway. Care should be taken to avoid the holding charge from releasing too quickly.
• Be sure tube fitting inner diameter and tube outer diameter are clean prior to assembly.
• Since both tubes are extended from the condensing unit housing, we recommend insulating the housing by using a wet cloth on the copper tubing.
• Recommended brazing materials: a copper / phosphorous or copper / phosphorous / silver alloy rod should be used for joining copper to copper whereas to join dissimilar or ferric metals, use a silver alloy rod, either flux coated or with a separate.
• Use a double tip torch.
End of tube
During brazing protect housing with damp cloth
OUTSIDE INSIDE UNIT
During brazing pull back fire insulation
8
Location and fixing
The unit should always be installed in a location that ensures clean air flow. It is recommended that a clearance of 300 mm from the wall (or the next unit) be maintained from the unit’s left and rear panels whereas a clearance of 500 mm must be maintained from the unit’s right, top and front panels (seen facing the front of the unit). Both service access and airflow have been considered in making these recommendations. Where multiple units are to be installed in the same location, the contractor needs to consider each individual case carefully. There can be many variations of unit quantities and available space and it is not the intention of this manual to go over these. Ideally, the unit should be mounted on a solid concrete slab with anti-vibration pads between unit feet and concrete. However the ZX condensing unit has also been designed for wall mounting on suitable brackets. Wall mounting brackets are not included. Another factor to consider in finding a good installation site is the direction of the prevailing wind. For example if the air leaving the condenser faces the prevailing wind, the air flow through the condenser can be impeded, causing high condensing temperatures ultimately resulting in reducing unit life. A baffle is a remedy for this situation.
300
70
1029
70
23
500
500 352 300
Service Valve
Service Valve
94
424
2-R7.5MM GROOVE
580
2 Holes 15mm DIA
Single Fan Unit
2 to 4 HP
Fixing dimensions and distances - Single fan unit
1029
300 70 70
23
500
500 352 300
Power
Supply Hole
Suction
Liquid
Service Valve
424
94
2-R7.5MM GROOVE
580
2 Holes 15mm DIA
Dual Fan Unit
4 to 7.6 HP
Fixing dimensions and distances - Dual fan unit
9
ZX Platform Condensing Unit
Start Up and Operation
Before commissioning, ensure that all valves on the condensing unit are fully opened.
Evacuation
The evacuation procedure is based upon achieving an actual system vacuum standard and is not time dependent. Before the installation is put into commission, it has to be evacuated with a vacuum pump. Proper evacuation reduces residual moisture to 50ppm. The installation of adequately sized access valves at the furthest point from the compressor in the suction and liquid lines is advisable. To achieve undisturbed operation, the compressor valves are closed and the system is evacuated down to
0.3 mbar / 0.225 Torr. Pressure must be measured using a vacuum pressure (Torr) gauge on the access valves and not on the vacuum pump; this serves to avoid incorrect measurements resulting from the pressure gradient along the connecting lines to the pump.
Charging procedure
Refrigerant charging procedure
The scroll compressor design requires system charging as quickly as possible with liquid refrigerant into the liquid line. This will avoid running the compressor under conditions where there is insufficient suction gas. Sufficient suction gas is available to cool not only the motor but also the scrolls. Temperature builds up very quickly in the scrolls if this is not done. Do not charge vapor
(gas) refrigerant into the ZX Scroll unit. The suction service valve must not be fully closed at any time while the compressor is running. To do so would cause damage to the compressor in the same manner as explained above. This valve is provided for ease of connection and for the fitting of service gauges without removing the unit panel. It is recommended to charge the ZX unit with refrigerant via its service valves. It is recommended to break the vacuum in the system with a partial charge of the refrigerant, before starting the system. For charge adjustment, it is recommended to check the liquid sight glass just before the expansion valve.
Oil charging procedure
Emerson ZX condensing units are supplied only with a compressor oil charge. After commissioning, the oil level should be checked and topped up if necessary. The oil level should be approximately halfway up the sight glass (ZXL/ZXD units). Oil can be charged through the Schraeder valve on suction valve.
Scroll compressor rotation direction
Scroll compressors, like several other types of compressors, will only compress in one rotational direction. The direction of rotation is not an issue with single-phase compressors since they will always start and run in the proper direction. Threephase compressors will rotate in either direction depending upon the phasing of the power. Since there is a 50-50 chance of connecting power in such a way that causes rotation in the reverse direction, it is important to include notices and instructions in appropriate locations on the equipment to ensure proper rotation direction when the system is installed and operated.
Maximum compressor cycle
Maximum permitted starts per hour is 10.
Check before starting & during operation
Both valves should be fully opened on the liquid line, in order to prevent trapping liquid.
• Check that all valves are fully opened.
• After starting and operation conditions are stabilized, it is recommended to check the oil level in compressor(s) and see if there is a need to add oil to ensure a sufficient oil level (halfway up the sight glass).
Diagnostic Initialization Message (ZX-MT and ZXL-LT)
When the unit is initially powered on, the diagnostic module will show the following signals.
(1 second)> (3 seconds)-> (3 seconds)->
- Software Version No.
- Unit Identification Code
“F”-With OD Fan Speed Control; “-”- W/O OD Fan Speed Control
“-” - ZX; “L” - ZXL
- Power On
LED 2
LED 1
10
Diagnostic messaging - LED definition (ZX-MT and ZXL-LT)
LED1-Unit Status LED2-Error/Warning Code
Display Status
Display
Error/Warning
Idle (Stop When
Reach To Set-point)
Run
About To Start 1
Defrost
Stop Due to Error
Lockout
Display Warning Signal
Controller
Pause Unit
Automatic
Reset
Controller
Lock Unit
Manual Reset
No error/warning
Compressor Phase Error (Wrong Phase Sequence/Loss of
Phase)
Compressor Inside Thermal Protector Trip
Compressor Over Current
Overheat
Compressor High Pressure Cut Out
Compressor Low Pressure Cut Out
DLT Thermistors Failure
2
Ambient Temperature Sensor Failure
Mid-coil Temperature Sensor Failure
PHE Vapor In Temperature Sensor Failure or Over Range 3
PHE Vapor Out Temperature Sensor Failure or Over Range 3
System Liquid Flood Back Warning
Every Protection Action
Every Protection Action
Every Protection Action NA
Every Protection Action
Every Protection Action
Every Protection Action
Every Protection Action
Every Protection Action
<5 times
Protection In
1 Hour
ZX: <5 times
Protection In 1
Hour
ZXL: Every
Protection
<5 times
Protection In 1
Hour
Every
Protection
<5 times
Protection In 1
Hour
Every Protection Action NA
Every Protection Action NA
Every Protection Action
Every Protection Action
~20% Liquid Back
NA
NA
NA
NA
NA
6th Protection
In 1 Hour
ZX: <6th
Protection In 1
Hour
ZXL: NA
6th Protection
In 1 Hour
NA
NA
NA
NA
NA
NA
NA
Notes:
1 New start, normal start by program and any start request delay
2
3
“LP Cutout”signal is not applicable in ZXL condensing unit.
PHE Vapor In/Out temperature sensor is not applicable in ZX medium temperature condensing unit.
Alarm messaging - Digital scroll controller (ZXD)
Alarm Mode dtL
E01L
Set Points
DLT >= dtL after dLd time delay
Low pressure is lower than ELP
(Level 3 Parameter)
Controller Actions
- Compressors are turned off
- Compressors are turned off
- Fans are unchanged
Reset
Auto reset when DLT < dtL-dLH
E0L
C-LA
C-HA
E0H
Mechanical LP switch opens
LP < LAL
LP >= HAL
Condensing Temperature
High
- Compressors are turned off
- Fans are unchanged
- Signaling only
- Signaling only
- Compressors are turned off - Fans are turned on
Auto reset when LP >= ELP(Level 3)
Auto reset when Number of activations < PEn in PEi time
Manual reset when Number of activations >= PEn in PEi time
- Press key for 3 sec or
- Turn off and on the unit
Auto reset when LP = LAL + delta (0.3bar)
Auto reset when LP = HAL -delta (0.3bar)
Auto reset when Number of activations
< PEn in PEi time
Manual reset when Number of activations
>= PEn in PEi time
- Press key for 3 sec or - Turn off and on the unit
Auto reset when HAF + delta (0.3bar)
F-HA
HP >= HAF
P1
P2
Suction Transducer failure or out of range
Condenser Mid Coil Sensor failure or out of range
P3
Discharge Temp Sensor failure or out of range
DLT: Discharge line temperature
LP: Low pressure
HP: High pressure
- HFC = yes, compressor are turned off
- Compressors are activated according to SPr or PoPr
- Fans are activated according to FPr
-The functions related to No.3 probe are disabled
Auto reset when probe is normal
Auto reset when probe is normal
Auto reset when probe is normal
Remarks
DLT
LP
LP
LP
LP
LP
Cond Mid Temp.
Cond Mid
Cond Mid Temp.
LP
Cond Mid Temp.
DLT
11
ZX Platform Condensing Unit
12
13
ZX Platform Condensing Unit
14
15
COND. Mid Coil Temp
Pressure Transducer
Out 0~10V
Digital Scroll Controller
Output: 12VAC
Input: 230VAC
Circuit Breaker
COND. Mid Coil Temp.
Pressure Transducer
ZX Platform Condensing Unit
Out 0~10V
Digital Scroll Controller
Output: 12VAC
Input: 230VAC
Circuit Breaker
16
Contact List
Emerson Climate Technologies
Asia Pacific Headquarters
10/F, Pioneer Building,
213 Wai Yip Street,
Kwun Tong, Kowloon, Hong Kong
Tel: (852) 2866 3108
Fax: (852) 2520 6227
India - Mumbai
Emerson Climate Technologies (India) Ltd
Unit No. 4,5,6 & 7, Bhaveshwar Arcade
LBS Marg, Opp. Shreyas Cinema
Ghatkopar (West)
Mumbai 400 086, Maharashtra, India
Tel: (91-22) 2500 6630/ 2500 6632
Fax: (91-22) 2500 6570 Australia
Emerson Climate Technologies Australia
Pty Ltd
Unit R7, 391 Park Road
Regents Park, NSW 2143, Australia
Tel: (61-2) 9795 2800
Fax: (61-2) 9738 1699
China - Beijing
Emerson Climate Technologies (Suzhou)
Co. Ltd
Beijing Sales Office
Room 1017 JianWei Building,
66 Nan Lishi Road, XiCheng District,
Beijing, PRC
Tel: (86-10) 5763 0488
Fax: (86-10) 5763 0499
China - Guangzhou
Emerson Climate Technologies (Suzhou)
Co. Ltd
Guangzhou Sales Office
508-509 R&F Yinglong Plaza,
No. 76 Huangpu Road West,
Guangzhou, PRC
Tel: (86-20) 2886 7668
Fax: (86-20) 2886 7622
India - PUNE
Emerson Climate Technologies (India) Ltd
Plot No. 23, Rajiv Gandhi Infotech Park,
Phase - II, Hinjewadi,
Pune 411 057, Maharashtra, India
Tel: (91-20) 2553 4988
Fax: (91-20) 2553 6350
Indonesia
PT Emerson Indonesia
Wisma 46 - Kota BNI, 16th Floor, Suite 16.01,
Jl. Jend.Sudirman Kav.1.
Jakarta 10220, Indonesia
Tel: (62)21-2513003
Fax: (62)21-2510622
Japan
Emerson Japan Ltd
Shin-yokohama Tosho Building
No. 33-9-5 Shin-Yokohama, Kohoku-ku
Yokohama 222-0033 Japan
Tel: (81-45)475 6371
Fax: (81-45)475 3565
China - Shanghai
Emerson Climate Technologies
(Suzhou) Co. Ltd
Shanghai Sales Office
1801 Building B, New CaoHeJing
International Business Center,
391Guiping Rd, Shanghai, PRC
Tel: (86-21) 3418 3968
South Korea
Emerson Electric (South Korea) Ltd.
3F Pharos Tower, 119 Nonhyeon-dong
Gangnam-gu, Seoul, South Korea 135-010
Tel: (82-2) 3483-1500
Fax: (82-2) 592-7883 / 592-7886
Malaysia
Emerson Electric (Malaysia) Sdn. Bhd.
Level M2, Blk A, Menara PKNS-PJ
Jalan Yong Shook Lin
46050 Petaling Jaya, Selangor, Malaysia
Tel: (60-3) 7949 9222
Fax: (60-3) 7949 9333
Middle East & Africa
Emerson Climate Technologies
PO Box 26382
Jebel Ali Free Zone – South
Dubai, UAE
Tel: (971- 4) 811 8100
Fax: (971- 4) 886 5465
Philippines
Emerson Climate Technologies
23rd Floor San Miguel Properties Centre
#7 St. Francis Street, Ortigas Center,
Mandaluyong City, Philippines
Tel: (632) 689 7288 / (632) 479 5200
Taiwan
Emerson Electric (Taiwan) Co. Ltd
3F No. 2 DunHua South Road Sec.1,
Taipei (105), Taiwan
Tel: (+886-2) 8161 7688
Fax: (+886-2) 81617614
Thailand - Bangkok
Emerson Electric (Thailand) Ltd
34th Floor Nation Tower
1858/133 Bangna Trad
Bangkok 10260 , Thailand
Tel: (66-2) 716 4700
Fax: (66-2) 751 4240
Vietnam
Emerson Climate Technologies - Vietnam
Suite 307-308,
123 Truong Dinh St., Dist.3
Ho Chi Minh, Vietnam
Tel: 84 908 009 189
EmersonClimate.com/Asia
Asia 02 A01 10 – R00 Issued 4/2012
Emerson, Copeland PerformanceAlert and Copeland Scroll are trademarks of Emerson Electric Co. or one of its affiliated companies.
©2011 Emerson Climate Technologies, Inc. All rights reserved.
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