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Electrical Connection of the Heat Pump Controller to the Heat Pump
Legends for Fig. 4.2 on p. 5
A1
The utility bridge (J4/ID3-EVS to X2/0 V) must be inserted
if no utility blocking contactor is fitted
(contact open = utility block).
A2
SPR bridge (J4/ID2-SPR to X2/0 V) must be inserted for
dynamic cooling, dew point monitor for static
cooling (input open = HP off).
A8
Bridge, request for hot water
B3*
Hot water thermostat
E9*
Flange heater
F1
Control fuse
J1
Supply voltage for controller
J2
Analogue inputs:
B1 External temperature
B2 Hot water temperature / room humidity sensor
B3 Room temperature sensor
B4 Sensor for mixed heating circuit
J3
Analogue outputs
J4
Digital inputs:
ID1 Hot water request
ID2 External disable contact
ID3 Utility block
J5-8 Not used
J9-11 Outputs:
NO1 HP request
NO2 Cooling/flange heater
NO3 Mixer open
NO4 Mixer closed
NO5 Heat circulating for heating circuits 1 and 2
Fig. 4.2:
Circuit diagram of the wall-mounted heat pump controller
K8*
Contactor for flange heater
K24 Relay for hot water request
M14* Heat circulating pump (HC 1)
M15* Heat circulating pump (HC 2)
M21* Main circuit mixer
N3* Room climate control station
N5* Dew point monitor
N12 Heat pump control (HPC)
N15 PCB analogue outputs:
Y1' Set value for heat pump control
Y2' free
NO6 Hot water request
N16 Heat pump controller (HPC)
R1* External temperature sensor
R3* Hot water temperature sensor
R5* Sensor for mixed heating circuit
R17* Room temperature sensor
T1
Transformer
X1
Terminal strip for power supply L/N/PE-230 V AC / 50 Hz
X2
Terminal strip for internal wiring
Y5*
Three-way reversing valve for DHW preparation
*
Components to be supplied from external sources
–––– Wired ready for use
- - - - To be connected on site if required
Heat pump
Heat Pump Controller
Room climate control station
4
E-5
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