50
Clamps
Function
Explanation
557XD1
1: R+
2: R-
PE: Shield connection
Temperature sensor, heating/cool-
ing circuit flow 3
Pt 1000
557XD3
1: R+
2: R-
PE: Shield connection
Temperature sensor, heating/cool-
ing circuit flow 4
Pt 1000
557XD5
1: R+
2: R-
PE: Shield connection
Temperature sensor, NC parallel
Pt 1000
600XD1
1: 24 VDC
2: Signal (digital)
Peak block, heat pump
External contact
Potential 24 VDC from heat pump
Closed: Active
600XD2
1: 24 VDC
2: Signal (digital)
Start command, stage 1
External contact
Potential 24 VDC from heat pump
Closed: Active
600XD3
1: 24 VDC
2: Signal (digital)
Start command, stage 2
External contact
Potential 24 VDC from heat pump
Closed: Active
600XD4
1: 24 VDC
2: Signal (digital)
Enable heating water buffer cylin-
der
External contact
Potential 24 VDC from heat pump
Closed: Active
600XD5
1: 24 VDC
2: Signal (digital)
Enable coolant buffer cylinder
External contact
Potential 24 VDC from heat pump
Closed: Active
600XD6
1: 24 VDC
2: Signal (digital)
Enable DHW cylinder
External contact
Potential 24 VDC from heat pump
Closed: Active
600XD7
1: 24 VDC
2: Signal (digital)
Operating message, external heat
generator
External contact
Potential 24 VDC from heat pump
Closed: Active
600XD8
1: 24 VDC
2: Signal (digital)
Fault message, external heat gen-
erator
External contact
Potential 24 VDC from heat pump
Closed: Active
610XD2
+1: Signal 4-20 mA
-1: GND
PE: Shield connection
Set temperature for the heating
water buffer cylinder
External signal 4 to 20 mA
610XD4
+1: Signal 4-20 mA
-1: GND
PE: Shield connection
Set temperature for the coolant
buffer cylinder
External signal 4 to 20 mA
620XD2
+1: Signal 0-10 V
-1: GND
PE: Shield connection
Set default value, external heat
generator
Signal 0 to 10 V
630XD1
1: External potential
2: Signal (digital)
Total failure prio. 1 heat pump
Floating N/O contact:
Closed: Standard mode
Open:
Fault
Connection values:
■
Max. voltage: 250 V~
■
Max. switching current: 5 A (AC1)
Installation procedure, heat pump
Electrical connections
(cont.)
5837251
Installation
