38
O
Fuse, circulation pump, control extension, DHW heating
P
Fuse, circulation pump, control extension, AC/NC cooling
R
Terminals, oil sump heaters
S
Soft start, compressor 1
T
Soft start, compressor 2
U
Soft start, compressor 3
External connections
Danger
Incorrectly executed electrical installations can
result in injuries from electrical current and dam-
age to the appliance.
All sensor and signal leads (0 to 10 V) must be
shielded with copper braiding and have a mini-
mum cross-section of 0.5 mm
2
.
Specified lead type: CV
Terminals
No. in
dia-
gram
Function
Explanation
100QB1
100XD1
Power supply
Connect the power cable to the control feed-
in terminals (top) in accordance with local
regulations.
Separate "connection and wiring dia-
gram"
192XD1
1: 24 VDC
2: 0 VDC
3: Signal 4-20 mA
qI
Refrigerant sensor
Signal 4 to 20 mA
200XD1
1: Phase conductor L1
2: Phase conductor L2
3: Phase conductor L3
N: Neutral conductor
PE: Protective conductor
4
Primary pump load
Fuse protection from load fuse 104FC1 (ob-
serve the total current of max. 16 A)
Connection values:
■
Max. output: 4000 W/2200 W
■
Voltage: 400 V~/230 V~
200XD3
1: Start command EB
2: Start command EB
3: Set value 0-10 V
4: GND
5: Operating message COM
6: Operating message NO
PE: Shield connection
4
Primary pump control sig-
nals
Floating N/O contact:
Closed: Primary pump demand
Open:
No demand
Signal 0 to 10 V
Contact closed:
Primary pump operation
201XD1
1: Phase conductor L1
2: Phase conductor L2
3: Phase conductor L3
N: Neutral conductor
PE: Protective conductor
5
Secondary pump load
Fuse protection from load fuse 104FC1 (ob-
serve the total current of max. 16 A)
Connection values:
■
Max. output: 4000 W/2200 W
■
Voltage: 400 V~/230 V~
Installation sequence
Electrical connections
(cont.)
5855865
Installation
Summary of Contents for BW 352.B027
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