Wolf WD-A Operation & Maintenance Manual page 14

AIR HEATER WD-A, WD-U
07
Switching Devices
07.03 5-step switchgear, 5 speeds 400 V (motor 001)
07.04 5-stage switchgear, 5 speeds 230 V (motor 003)
250 V AC
max. 2A
250 V AC
max. 2A
Power supply
Back-up fuse on site
FS=Frost protection thermostat
RT=Room thermostat
TK=Thermal contact
250 V AC
max. 1A
Power supply
RT TK
Back-up fuse
on site
250 V AC
max. 1A
Power supply
RT FS TK
Back-up fuse
on site
14 14
Order no. 685 / 55-56-57-58 D
5-adrig
Motor M1
RT=Room thermostat
3-adrig
TK=Thermal contact
M
1 ~
RT=Room thermosta
FS=Frost protection thermostat
3-adrig
TK=Thermal contact
M
1 ~
Order no. 685 / 52-53 E-FK
Order no. 685 / 54 E-FK