KTD Description Versions and product codes

Solar thermal system
0244EN June 2016
Control unit
KTD
Technical data
• Operational room temperature range: 0÷40 °C
• Operational room humidity range: max. 85 %
• Supply voltage: 100÷240 Vac
• Frequency: 50÷60 Hz
• Power consumption: 0,5÷2,5 W (low consumption in standby)
• Pt1000 probes easuring range: -40÷300 °C
• Power outputs: - mechanical relay: 460 VA resistive / 460 W inductive
- electronic relay: 5÷120 W inductive
• Output to control the ErP circulator: - PWM frequency 1 kHz, level 10 V
- 0-10 V tollerance 10 %, for load 10 KΩ
• Internal fuse: 2 A / 250 V slow blow
• Protection degree: IP40
• Protection class: II
KTD
Description
The KTD control unit is used to programme and control a solar thermal systems.
Two different versions are available, KTD3 and KTD5, which are used in
combination with R586S, R586S-0 and R586S-1 circulation groups.
The control unit is user-friendly thanks to its backlight graphic display, four
buttons, handy programming assistant and on-line help pages.
The KTD control unit has inputs for temperature probes type Pt1000, a relay
output for controlling an electronic circulator, and one or two relay outputs
for commanding a electronic circulator (predisposition for commanding
circulator by PWM or 0-10 V signal) and one or two relay outputs for other
additional functions.
The programs on the control unit allows to set various system configurations.
Operation control functions range from the mere reading of the current
measured values to long-term system monitoring and analysis by means of
charts and statistics. Numerous other functions complete the possibilities
offered by the KTD control unit:
• at any time, you can reset the previous values or, if necessary, the
manufacturer's default values;
• the menu locking function prevents any unwanted modification of the
operating parameters set during the unit programming phase;
• the anti-lockout function activates the pump or valve connected to the relay
for 5 seconds, at regular intervals, to prevent any possible lockout due to a
lengthy period of non-use;
• the anti-legionella function heats the boiler to a high temperature at fixed
time intervals.
The KTD allows also to view the thermal energy level produced by the solar
thermal system thanks to the setting of certain additional parameters (e.g.
glycol type and percentage, and system flow rate).
Main characteristics
• Outputs 0-10 V / PWM to control the ErP circulator
• Casing: in 2 parts, ABS
• Type of installation: integrated in the circulation groups (R586S, R586S-0,
R586S-1) or separate on the wall
• Display: graphic display, 128 x 64 points
• Signalling: 1 multi-colour LED
• Programming: 4 buttons
• 18 languages selectable
• Guided installation
• Compliance: - Low voltage 2006/95/EC
- Electromagnetic Compatibility Directive 2004/108/EC
Operating characteristics
Functions
N° of input for tempe- N° of included temperature probe
rature probe
Serie
Product code
KTD3
KTD3Y003
3
3
KTD5
KTD5Y006
6
4
Optionals
• KTDPY001: overvoltage protection
• KTDSY001: temperature probe Pt1000 (180 °C)
KTD5
Inputs for Pt 1000 probes
3
6
Pt1000 probes supplied
3
4
2 (R1 - R2)
-
1 (R3)
2 (R1- R2)
27
42
Relays outputs:
- mechanical relay
- electronic relay
Number of system configuration
Measurement of thermal energy
Measurement of thermal energy via VFS sensor
SI
SI
NO
SI (x 2)
Times and temperat. controlled by thermostat function
SI
SI
Anti-legionella protection via solar system
SI
SI
Anti-legionella protection via auxiliary heat generator
SI
SI
Anti-freezing protection
SI
SI
CAN Bus
CAN Bus
Net communication
Versions and product codes
KTD3
Additional function for not used relays
• Solar By-pass
• Back-up heating control
• Solar panel cooling
• Increase the return flow
• Anti-legionella function
• Tank transfering
• Universal ΔT
• Thermostat 2
• Control of solid fuel boiler
• Signalling with activated protective function
• Signalling with new information message
• Pressure monitoring
• Booster for fast start-up of the system
• Heating circuit
• Parallel operation with R1
• Parallel operation with R2
1
Solar thermal system
0244EN June 2016
Control unit
KTD
Signal and command elements
Typical applications
Warning.
The following illustrations should be viewed only as schematic
diagrams showing the respective hydraulic systems, and do not claim
to be complete. The controller does not replace safety devices under
any circumstances. Depending on the specific application, additional
system components and safety components may be mandatory, such
as check valves, non-return valves, safety temperature liwithers, scalding
protectors, etc., and must therefore be provided.
Symbol
Meaning
Symbol
Meaning
Circulator
Chiller
Valve
The user interface of the KTD control unit consists of a graphic display,
a signalling LED and 4 buttons. The dot matrix display (1) indicates the
operation of the KTD control unit via text and graphics. The signalling LED (2)
is multi-colour and can assume the following status conditions:
• fixed green light if a relay is activated
• fixed red light if “OFF” mode is selected
• slow red flashing in “manual” mode
• fast red flashing if there is an error.
Using the 4 buttons (3, 4), you can access the various functions of the control
unit. The “esc” button (3) is used to enter or quit the menu; when it is pressed,
the control unit asks for confirmation that the modifications must be stored.
The function of each of the other three buttons (4) is shown in the row of the
display just above the buttons themselves
The right-hand button is only used to choose and confirm a function.
Wood boiler
3-way Valve
R2 on
Accumulator
Heat exchanger
Solar
Auxiliary heating
Probe
Auxiliary heating
Radiator
Swimming pool
Typical application for KTD3 and KTD5
1
9
S1
S1
R1(V1)
Examples of the button functions:
Button
S4
R1(V1)
S2
Function
S2
R2(V2)
+/-
increase/reduce a value
Solar
▼/▲
scroll up/down through the menu
11
yes/no
confirm/refuse
Info
more information
Back
go backwards
ok
confirm your choice
Confirm
27
S1
S2
R3
Circolator (the symbol rotates if the circulator is working)
S4
S2
S3
R1(V1)
S3
R2
Double solar
Solar + boiler double coil
Meaning
S1
R1(V1)
confirm the setting
Meaning of the symbols on the display:
Symbol
Solar with swimming pool + heat exchanger
Typical application only for KTD5
29
32
S1
S1
Valve (in black is indicated the flow direction)
R2
S4
R1(V1)
Solar panel
Boiler or accumulator
Swimming pool
S3
R1(V1)
S2
S3
S4
S2
R3
R2(V2)
Solar, accumulator and wood boiler
Solar with thermostat and pre-heating
37
42
S1
S1
S5
R3
Temperature probe
R1(V1)
Heat exchanger
Attention / Error message
New information
S4
R2
S2
S3
R3
Solar 3 accumulators and 3 valves
S4
R1(V1)
S2
R2(V2)
Double solar, heat exchanger, 2 circulators
Note.
For other possible applications refer to the instruction manual.
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Solar thermal system
0244EN June 2016
Control unit
KTD
Installation
Product specification
Warning.
The installation and programming of the KTD control unit, and the
initial start-up of the solar thermal system, should only be carried
out by expert personnel who must scrupulously respect current
laws and comply with the Standards, project indications, technical
documentation and assembly instructions supplied with the device.
The KTD control unit can be installed integrated in the R586S, R586S-0,
R586S-1 circulation groups or separated on the wall.
The permissible lengths of the connecting cables are:
• Solar panel and external probe: < 30 m
• Other Pt1000 probes: < 10 m
• CAN Bus: < 3 m
• PWM o 0-10 V: < 3 m
• Mechanical relay: < 10 m
• Electronic relay (only for KTD5): < 10 m
Note.
For installation and configuration steps, refer to the instruction
manual.
Dimensions
C
A
B
Product code
A [mm]
B [mm]
C [mm]
KTD3Y003
163
110
52
KTD5Y006
163
110
52
KTD3
Differential control unit for programming and controlling the operation
of the solar thermal system. To be used with the R586S, R586S-0 and
R586S-1 circulation group. Backlight graphic dot matrix display (128x64). 4
buttons, 1 multi-colour signalling LED. Programming assistant and on line
help pages. 3 inputs for Pt1000 temperature probes (3 probes included),
2 mechanical relay outputs. 27 possible system configurations. Thermal
energy measurement function. Anti-legionella protection function via
activation of the solar thermal system. Menu locking function to prevent
any unwanted modification of the operating parameters. Anti-lockout
function with activation (for 5 sec) of circulator or valve connected to relay
output. Value reset function (previous or default values). Supply voltage 230
V AC ± 10 %. 2 A internal protection fuse, slow-blow type 250 V. ABS casing.
Dimensions 163x110x52mm.
KTD5
Differential control unit for programming and controlling the operation
of the solar thermal system. To be used with the R586S, R586S-0 and
R586S-1 circulation group. Backlight graphic dot matrix display (128x64). 4
buttons, 1 multi-colour signalling LED. Programming assistant and on line
help pages. 6 inputs for Pt1000 temperature probes (5 probes included),
2 mechanical relay outputs. 42 possible system configurations. Thermal
energy measurement function. Anti-legionella protection function via
activation of the solar thermal system. Menu locking function to prevent
any unwanted modification of the operating parameters. Anti-lockout
function with activation (for 5 sec) of circulator or valve connected to relay
output. Value reset function (previous or default values). Supply voltage 230
V AC ± 10 %. 2 A internal protection fuse, slow-blow type 250 V. ABS casing.
Dimensions 163x110x52mm.
3
Solar thermal system
0244EN June 2016
Control unit
KTD
Additional information
For additional information please check the website www.giacomini.com or contact the technical service: ' +39 0322 923372 6 +39 0322 923255 * consulenza.prodotti@giacomini.com
This pamphlet is merely for information purposes. Giacomini S.p.A. retains the right to make modifications for technical or commercial reasons, without prior notice, to the items described in
this pamphlet. The information described in this technical pamphlet does not exempt the user from following carefully the existing regulations and norms on good workmanship.
Giacomini S.p.A. Via per Alzo, 39 - 28017 San Maurizio d’Opaglio (NO) Italy
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