Staircase control unit THZ
34
Mounting
3.4 Power failure and fault
Power failure and faults are displayed at the fault LED at the RWA switch and at the LEDs of the emergency power
supply unit.
Operating state
Fault LED at the RWA switch
Emergency power supply unit
Normal
Green, lights up continuously
Service LED 1 lights up
Power failure
Yellow, flashes briefly (0.1 s)
Service LEDs are dark
Fault
Yellow, lights up continuously or
flashes
Red Service LED flashes
Power failure
The RWA emergency power supply unit has an integrated emergency power supply that can bridge power
failures for at least 72 hours (e.g. for maintenance work or during a fire). Prerequisite is a good condition of the
batteries.
The emergency functions of the RWA emergency power supply unit remain during a power failure. On the other
hand, the normal ventilation operation via the vent switch is disabled in order to maintain the capacity of the
batteries as long as possible.
WARNING!
Danger of fatal injury via electric shock!
X
Work on the power supply may only be carried out by a qualified electrician.
X
Eliminate the cause of the power failure and check the power supply of the RWA emergency power supply
unit.
à
If necessary, replace the fuse.
à
In case of faults despite an intact power supply, contact a specialist authorised by GEZE.
Fault
Work in the control cabinet is required in case of a fault with a yellow illuminated fault LED.
X
Contact a specialist authorised by GEZE.
4
Mounting
4.1 Mounting sequence (overview)
X
Before starting work check the completeness and correctness of the delivery using the delivery note. Later
complaints can no longer be recognised.
X
Fasten the housing securely and keep easily accessible for maintenance.
X
Mount the drives and control elements (observe the permissible connection values and specifications of the
respective mounting instructions).
X
Introduce the lines through the line-feed in the control unit.
X
Connect external components.
4.2 Mounting the THZ
Fasten the back plate to the wall
X
Insert a screwdriver or similar tool into
the hole (2).
X
Pull the cover (1) off upwards.
