S
ERVICE
C
OMFORT
A
IR
C
URTAIN
en-42
en
6.3
High-limit thermostat
For electrically heated models only:
The unit has been fitted with a high-limit thermostat to pre-
vent overheating.
Units with a length of 250 cm have two high-limit thermo-
stats. These each protect a section of the unit and can oper-
ate independently of one another.
6.3.1 Resetting the high-limit thermostat
1. Turn the unit off.
2. Allow the unit to cool down for 10 minutes.
3. Push back the high-limit thermostat pin
1
.
Note:
n
On models with a length of 250 cm, push back the
second high-limit thermostat
2
as well.
Note:
n
If necessary, remove the front panel.
4. Turn the unit on.
5. Check the operation of the fans.
Note:
n
Contact the installer if this error occurs repeatedly.
See also:
6.1.1 "Removing the front panel" on page 38
6.4
Biddle control cable composition
The control cable for the control system is constructed as fol-
lows:
• The plugs are modular, type 4P4C connectors.
• Connectors are untwisted, i.e. at both ends of the cable,
cores are connected to the same electrode.
