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Appendix
Problem
Cause/Solution
Check heating and inlet temperature.
Not all rooms are
►
heated.
Check adjuster on thermal actuator (see
►
"Setting actuator" on Page 22).
Check actuator for correct operation.
►
All rooms to cold or all
Check fuse (4 A, fast) inside of the
►
rooms to warm.
controller.
Room name cannot be
Ensure correct cabling between central
►
assigned at central
operating device HCM 100 and storey
controller.
operating device.
Check whether adjusting ring of setpoint
Room controlled
►
adjuster is at position 0.
incorrectly.
Check whether adjusting ring can be
►
turned between –12 and +12 with housing
cover removed.
Check whether or not a setpoint adjuster is
►
assigned to room.
Ensure correct position of selector switch.
►
Ensure correct setting (normally open/
►
closed) and connection of actuators.
48
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