Electrical Connection - Wolf MUS 85 Technical Manual And Installation Instructions

Electrical connection

Mains power connection 230V 50 Hz 10 A
To the control unit
2
3 x 1.5
bl
br
ye/gn
N
L1
P E
P E L1 N
Burner two-stage without socket part
To the control unit
2
7 x 1.0
blk ye/gn blu br w
Burner connection
Remove the burner plug from the control unit, connect the black to
the brown core and connect the white core to the burner phase.
Connection for on-site safety equipment
To the control unit
blk
y
y
blk
Control unit
junction box
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.
Heating system
emergency
stop switch
(on site)
To the control unit
2
4 x 1.0
gr r 2 3 4 1
To the burner
blk
y
y
blk
Terminals for
low water indicator
Terminals for
safety pressure
switch
Terminals for
remote pressure
monitoring
Heating circuit pump(s) / return shunt pump connection
To the control unit
Return limit thermostat
3 x 1.0 2
ye/gn br
bl
PE L1
N
Heating circuit
pump on-site
Burner with socket part
Burner plug
plug into the
control unit
2
7 x 1.0
blk ye/gn bl br w
Burner socket part
st
1 stage
Return
shunt pump
Burner plug on the
control unit
4 x 1.0 2
gr r
Burner socket part
nd
2 stage
11