43
Terminals
No. in
dia-
gram
Function
Explanation
433XD1
1: Valve OPEN
2: Valve CLOSED
3: 24 VDC
4: 0 VDC
PE: Protective conductor
t-W
2-way motorised damper,
well/groundwater, geother-
mal probes
Connection values:
■
Voltage: 24 VDC
■
Max. switching current: 5 A
434XD1
1: Valve OPEN
2: Valve CLOSED
3: 24 VDC
4: 0 VDC
PE: Protective conductor
rYR
2-way motorised damper,
residual heat source
Connection values:
■
Voltage: 24 VDC
■
Max. switching current: 5 A
435XD1
1: Valve OPEN
2: Valve CLOSED
3: 24 VDC
4: 0 VDC
PE: Protective conductor
rYT
2-way motorised damper,
air/brine heat exchanger,
residual heat
Connection values:
■
Voltage: 24 VDC
■
Max. switching current: 5 A
436XD1
1: Valve OPEN
2: Valve CLOSED
3: 24 VDC
4: 0 VDC
PE: Protective conductor
rYW
2-way motorised damper,
heat exchanger, residual
heat, water
Connection values:
■
Voltage: 24 VDC
■
Max. switching current: 5 A
437XD1
1: Valve OPEN
2: Valve CLOSED
3: 24 VDC
4: 0 VDC
PE: Protective conductor
rYU
2-way motorised damper,
external heat generator
outlet
Connection values:
■
Voltage: 24 VDC
■
Max. switching current: 5 A
438XD1
1: Valve OPEN
2: Valve CLOSED
3: 24 VDC
4: 0 VDC
PE: Protective conductor
rYZ
2-way motorised damper,
DHW heating inlet, heat
pump
Connection values:
■
Voltage: 24 VDC
■
Max. switching current: 5 A
439XD1
1: Valve OPEN
2: Valve CLOSED
3: 24 VDC
4: 0 VDC
PE: Protective conductor
q-E
3-way diverter valve, heat-
ing/cooling, heating circuit
1
Connection values:
■
Voltage: 24 VDC
■
Max. switching current: 5 A
439XD7
1: External potential
2: Signal (digital)
q-E
Operating message, cool-
ing, heating circuit 1
Floating N/O contact:
Closed: Operation
Connection values:
■
Max. voltage: 250 V~
■
Max. switching current: 5 A (AC1)
440XD1
1: Valve OPEN
2: Valve CLOSED
3: 24 VDC
4: 0 VDC
PE: Protective conductor
w-E
3-way diverter valve, heat-
ing/cooling, heating circuit
2
Connection values:
■
Voltage: 24 VDC
■
Max. switching current: 5 A
Installation sequence
Electrical connections
(cont.)
5855865
Installation
Summary of Contents for BW 352.B027
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