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Door 2 electrical parts of the hydraulic compartment
A11P................ Main PCB
A12P................ User interface PCB (remote controller)
A3P.................. Thermostat (EKRTW*, EKRTR*)(PC=Power Circuit)
A3P.................. Solar pump station PCB (EKSR3PA)
A4P.................. Digital I/O PCB (EKRP1HB)
A4P.................. Receiver PCB (EKRTR*)
E11H,E12H...... Backup heater element 1, 2
E13H................ Backup heater element 3 (only for W1 models)
E4H.................. Booster heater
E5H.................. Switch box heater
E6H.................. Expansion vessel heater
E7H.................. Plate heat exchanger heater
F1B .................. Fuse backup heater
F1T .................. Thermal fuse backup heater
F2B .................. Fuse booster heater
FU1.................. Fuse 3.15 A T 250 V for PCB
FU2.................. Fuse 5 A T 250 V
FuS,FuR .......... Fuse 5 A 250 V for digital I/O PCB
K1M ................. Contactor backup heater step
K3M ................. Contactor booster heater
K4M ................. Pump relay
K5M ................. Contactor for backup heater all pole disconnection
M1P ................. Pump
M2S ................. 2-way valve for cooling mode
M3S ................. 3-way valve: floor heating/domestic hot water
PHC1 ............... Optocoupler input circuit
Q1DI,Q2DI....... earth leak detector
Q1L.................. Thermal protector backup heater
Q2L.................. Thermal protector 1 booster heater
Q3L.................. Thermal protector 2 booster heater
(only for W1 models)
R1H ................. Humidity sensor (EKRTR*)
R1T.................. Ambient sensor (EKRTW*, EKRTR*)
R2T.................. External sensor (floor or ambient) (EKRTETS)
R5T.................. Domestic hot water thermistor (EKHW*)
R11T................ Outlet water heat exchanger thermistor
R12T................ Outlet water backup heater thermistor
R13T................ Refrigerant liquid side thermistor
R14T................ Inlet water thermistor
S1L .................. Flow switch
S1S.................. Solar pump station relay
S1T .................. Thermostat switch box heater
S2S.................. Benefit kWh rate power supply contact
S2T .................. Thermostat expansion vessel heater
S3S.................. Dual set point 2 contact
S3T .................. Thermostat plate heat exchanger
S4S.................. Dual set point 1 contact
SS1.................. DIP switch
TR1.................. Transformer 24 V for PCB, for relays and valves
V1S,V2S .......... Spark suppression 1, 2
X1M~X11M...... Terminal strips
X2Y~X5Y ......... Connector
NOTES
1.
THIS WIRING DIAGRAM ONLY APPLIES TO THE HYDROMODULE
SWITCH BOX
2.
USE A DEDICATED POWER CIRCUIT FOR THE BACKUP HEATER
AND BOOSTER HEATER. NEVER USE A POWER CIRCUIT
SHARED BY OTHER APPLIANCE.
3.
: FIELD WIRING
NO/NC
: NORMAL OPEN/NORMAL CLOSED
SPST
: SINGLE POLE SINGLE THROW
E(D/B)(H/L)Q011~016BA6V3+W1
Unit for air to water heat pump system
4PW57621-1A
4.
: TERMINAL STRIP
: CONNECTOR
: TERMINAL
: PROTECTIVE EARTH
5.
DO NOT OPERATE THE UNIT BY SHORT-CIRCUITING ANY
PROTECTION DEVICE
6.
COLOURS:
BLK
: BLACK
BLU
: BLUE
BRN
: BROWN
GRN
: GREEN
GRY
: GREY
ORG
: ORANGE
7.
FOR *KHWSU*V3, REFER TO OPTION MANUAL
8.
FOR *KSOLHWAV1, REFER TO OPTION MANUAL
9.
MAXIMUM LOAD: 0.3 A - 250 VAC MINIMUM LOAD: 20 mA - 5 VDC
10.
230 VAC OUTPUT MAXIMUM LOAD: 0.3 A
11.
BACKUP HEATER KW REDUCTION. REFER TO INSTALLATION
MANUAL
12.
FOR BENEFIT kWh RATE POWER SUPPLY INSTALLATION, REFER
TO INSTALLATION MANUAL
POWER SUPPLY
POWER SUPPLY
Only for benefit kWh rate
Only for benefit kWh rate power supply
power supply installation:
installation: use normal kWh rate power supply
use normal kWh rate
for E5H, E6H, E7H.
power supply for E5H,
E6H, E7H.
FROM COMPRESSOR
FROM COMPRESSOR MODULE
MODULE SWITCHBOX
SWITCHBOX
To bottom plate heater
To bottom plate heater
E5H, E6H, E7H, internally
E5H, E6H, E7H, internally powered (Standard)
powered (Standard)
POSITION OF PARTS
POSITION OF PARTS
HYDROMODULE
HYDROMODULE SWITCHBOX
SWITCHBOX
domestic hot water tank
domestic hot water tank
change-over to boiler
change-over to boiler output
output
Solar pump connection
Solar pump connection
Alarm output
Alarm output
cooling/heating on/off
cooling/heating on/off output
output
Solar input
Solar input
Standard 6 kW
Standard 6 kW
Reduced 3 kW
Reduced 3 kW
Dual setpoint application
Dual setpoint application
(refer to installation
(refer to installation manual)
manual)
3 wire type (SPST)
3 wire type (SPST)
NO valve
NO valve
NC valve
NC valve
user interface
user interface
OUTSIDE UNIT
OUTSIDE UNIT
only for... option
only for... option
electric heater fuse
electric heater fuse
*KHW* kit fuse
*KHW* kit fuse
WIRING DEPENDENT ON MODEL
FIELD WIRING
OPTION
FIELD WIRING
PCB
WIRE COLOUR
PNK
: PINK
RED
: RED
VIO
: VIOLET
WHT
: WHITE
YLW
: YELLOW
Installation manual
20
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