Wolf BWL-1 S Installation And Operating Instructions Manual page 76

External demand / control by
building management system BMS
DHW heating mode for system
configuration 51
BWL-1S(B)
● Split air/water heat pump
● 0 - 10 V switching (at input E2)
● Active cooling possible
Important information:
In these schematic diagrams, shut-off valves, air vent valves and safety equipment are not fully represented.
These should be provided for each individual system, in line with the applicable standards and regulations.
Hydraulic and electrical data can be found in the Hydraulic System Solutions technical guide.
76
System configuration 51
U = 0...10 V at input E2/SAF:
0 V ≤ U < 1.2 V →
1.2 V ≤ U ≤ 4.0 V →
4.2 V ≤ U ≤ 7.0 V →
7.2 V ≤ U ≤ 10.0 V →
Notes:
- Connect the outside temperature sensor OTS
- Activate the electric heating (WP090)
- Program WP003 for defrost
→ in defrost mode, output A1 is switched in order to notify the BMS regarding
defrost mode.
DHW mode can be suppressed for system configuration 51 by removing the cylinder
sensor CTS, carrying out a parameter reset and resetting the system configuration.
0 - 10 V
Outdoor module Indoor module
A 3-way diverter valve for
central heating/DHW and a
feed/heating circuit pump
are integrated into the
indoor module
Integrated 3-way diverter valve
for heating/DHW must be
disconnected.
heat pump OFF
0-100 % compressor cooling mode
0-100 % compressor heating mode
0-100 % electric heating heating mode
3WDV
HTG/DHW
AB
A
B
CTS
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