Viessmann BW 352.B027, Инструкция по установке и обслуживанию

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45
Terminals No. in
dia-
gram Function Explanation
462XD1
1: 24 VDC
2: 0 VDC
3: Set value 0-10 V
4: GND
PE: Shield connection
q-T
3-way mixer, heating/cool-
ing circuit 1 Connection values:
■
Voltage: 24 VDC
■
Signal 0 to 10 V
462XD5
1: 24 VDC
2: 0 VDC
3: Set value 0-10 V
4: GND
PE: Shield connection
w-T
3-way mixer, heating/cool-
ing circuit 2 Connection values:
■
Voltage: 24 VDC
■
Signal 0 to 10 V
463XD1
1: 24 VDC
2: 0 VDC
3: Set value 0-10 V
4: GND
PE: Shield connection
e-T
3-way mixer, heating/cool-
ing circuit 3 Connection values:
■
Voltage: 24 VDC
■
Signal 0 to 10 V
463XD5
1: 24 VDC
2: 0 VDC
3: Set value 0-10 V
4: GND
PE: Shield connection
u-T
3-way mixer, heating/cool-
ing circuit 4 Connection values:
■
Voltage: 24 VDC
■
Signal 0 to 10 V
464XD1
1: 24 VDC
2: 0 VDC
3: Set value 0-10 V
4: GND
PE: Shield connection
t-R
3-way mixer NC parallel Connection values:
■
Voltage: 24 VDC
■
Signal 0 to 10 V
500XD1
1: Contact COM
2: Contact NO
PE: Protective conductor
qW
Pressure switch, primary
circuit Open: Fault
501XD1
1: 24 VDC
2: 0 VDC
3: Contact NO
qT
Primary side flow switch Closed: Operation
Open:
Fault
501XD5
1: 24 VDC
2: 0 VDC
3: Contact NO
qO
Flow switch, coolant buffer
cylinder Closed: Operation
Open:
Fault
502XD1
1: 24 VDC
2: Contact NC
PE: Protective conductor q-W Temperature limiter, heat-
ing circuit 1 Open: Fault
502XD3
1: 24 VDC
2: Contact NC
PE: Protective conductor w-W Temperature limiter, heat-
ing circuit 2 Open: Fault
Installation sequence
Electrical connections
(cont.)
5855865
Installation