Wolf MUS 85 - Electrical Connection

11
Electrical connection
Mains power connection 230V 50 Hz 10 A
To the control unit
Heating system
emergency
stop switch
(on site)
Heating circuit pump(s) / return shunt pump connection
Return limit thermostat
Heating circuit
pump on-site
Return
shunt pump
Burner two-stage without socket part
Burner plug
plug into the
control unit
Burner plug on the
control unit
Burner with socket part
Burner socket part Burner socket part
1
st
stage 2
nd
stage
Connection for on-site safety equipment
To the control unit
To the burner
Terminals for
low water indicator
Terminals for
safety pressure
switch
Control unit
junction box
Terminals for
remote pressure
monitoring
Burner connection
To the control unit To the control unit
ye/gn
PE
bl
N
br
L1
PE L 1 N
br
L1
bl
N
ye/gn
PE
blk ye/gn blu br w gr r 2 3 4 1
blk ye/gn bl br w gr r
To the control unit
Remove the burner plug from the control unit, connect the black to
the brown core and connect the white core to the burner phase.
Electrical connection Connect the heating circuit pump(s), the return shunt pump and the DHW cylinder
loading pump(s) on-site via contactors, if:
- three-phase pumps (400 V) are connected.
- burner and pump draw more than 2 A each.
- the total control unit power consumption is exceeded.
3 x 1.5
2
3 x 1.0
2
7 x 1.0
2
4 x 1.0
2
y
blk
blk
y
blk
y
y
blk
7 x 1.0
2
4 x 1.0
2