48
Clamps
Function
Explanation
502XD7
1: 24 VDC
2: Contact NC
PE: Earth conductor
Temperature limiter, heating
circuit 4
Open: Fault
503XD1
1: 24 VDC
2: 0 VDC
3: NC
4: NO
PE: Earth conductor
Contact humidistat, heating
circuit 1
Open: Fault
503XD3
1: 24 VDC
2: 0 VDC
3: NC
4: NO
PE: Earth conductor
Contact humidistat, heating
circuit 2
Open: Fault
503XD5
1: 24 VDC
2: 0 VDC
3: NC
4: NO
PE: Earth conductor
Contact humidistat, heating
circuit 3
Open: Fault
503XD7
1: 24 VDC
2: 0 VDC
3: NC
4: NO
PE: Earth conductor
Contact humidistat, heating
circuit 4
Open: Fault
552XD1
1: R+
2: R-
Outside temperature sensor
Pt 1000
552XD3
1: R+
2: R-
Heating water buffer cylinder tem-
perature sensor, top
Pt 1000
552XD5
1: R+
2: R-
Heating water buffer cylinder tem-
perature sensor, bottom
Pt 1000
552XD7
1: R+
2: R-
PE: Shield connection
Flow temperature sensor NC
Pt 1000
553XD1
1: R+
2: R-
PE: Shield connection
Coolant buffer cylinder tempera-
ture sensor, top
Pt 1000
553XD3
1: R+
2: R-
PE: Shield connection
Coolant buffer cylinder tempera-
ture sensor, bottom
Pt 1000
553XD5
1: R+
2: R-
PE: Shield connection
Flow temperature sensor NC/AC
Pt 1000
Installation procedure, heat pump
Electrical connections
(cont.)
5837251
Installation
