Biddle PS Series - Fuses; High-Limit Thermostat

Modular fan coil unit 4 Service
Version 2.1 English (17-07-2018)
19
4.3 Fuses
The fuse rating is indicated near the fuse
holder.
Location of fuses
fuse holder
unit type
transformer control
control M or S
with capacity
20, 21, 40 or
60
on electronics
compartment
no individual
fuse
control M or S
with capacity
41 or 61
on electronics
compartment
and in base
module (near
transformer)
no individual
fuse
control I on electronics
compartment
on PCB
control B in base mod-
ule (near
transformer)
not applicable
4.4 High-limit thermostat
For base module or electric heating module
The unit is protected with a high-limit ther-
mostat. When the heating elements reach a
too high temperature, the high-limit thermo-
stat will switch off the electric heating for
safety reasons. You can switch the heating
on again by resetting the high-limit thermo-
stat.
w
Warning:
If the high-limit thermostat is activated
frequently, there may be a dangerous
defect. In that case, disconnect the unit
from the mains and consult Biddle.
The high-limit thermostat may also be acti-
vated when power is supplied to the unit after
a power failure.
To reset the high-limit thermostat:
1 Allow the unit to cool down.
2 Press the knob on the side of the base
module or heating module.