56
Terminals
Function
Explanation
36X5
Diverter valve, cooling,
Cooling circuit 2
Connection values
■ Voltage:
24 VDC
■ Max. switching current:
4 A
Connect on site.
36X7
Diverter valve, cooling
circuit 3
Connection values
■ Voltage:
24 VDC
■ Max. switching current:
4 A
Connect on site.
Terminals
Function
Explanation
21X5
Flow switch groundwater
Cold water option
Requires floating contact:
■ Closed:
Heat pump in operation
■ Open:
Heat pump shut down
There should be
no
jumper if a flow
switch is connected.
Connect on site.
38X4
External fault message
Dry cooler
Dry cooler option
Requires floating contact:
■ Closed:
Dry cooler fault
■ Open:
Dry cooler OK
Connect on site.
19X0
Optional heat pump emer-
gency stop switch
Cold water option
Requires floating contact:
■ Closed:
Heat pump in operation
■ Open:
Heat pump shut down
There should be
no
jumper if a flow
switch is connected.
Connect on site.
Installation sequence
Overview of electrical connections
(cont.)
5848 449 GB
