DencoHappel ZGF.1E series Operation Manual page 68

Safety and User Instructions
6.4.1 Connecting multiple Flex-Geko units with AC fan(s)
Connecting multiple Flex-Geko units without relay PCB
2
1
Speed 1 Speed 2 Speed 3
Fig. 6-5: Connecting multiple Flex-Geko units without relay PCB
68
HAZARDOUS VOLTAGE!
Controllers may only be installed in units with casing that are installed with a
rear side towards wall or ceiling. The installer must ensure that interfering with
controllers or contacting basic insulation of wiring is prevented.
• Connect only in accordance with the unit-specific wiring diagram.
DAMAGE TO THE UNIT!
For units fitted with an electric heater the installer must ensure that the fan runs
on for a sufficient period of time following the deactivation of electric heater.
HAZARDOUS VOLTAGE!
When several Flex-Geko FCUs are integrated in a field-provided control system
by others, the fan motor speeds must not be switched or controlled in parallel.
NOTICE!
Combine multiple Flex-Geko units without a relay circuit board according to
Fig. 6-5 WITH A CONTROLLER BY OTHERS. Cut-off relays must be provided
by others (K1 - K3).
Flex-Geko units with a relay circuit board are prepared for parallel operation.
Only one fan speed stage may be activated simultaneously!A minimum switch
pause of 0.1 sec. must be maintained between changing speeds! According to
the relevant regulations, an all-pole isolating device must be field provided by
others on site.
3 4
Further slave units
Power supply 230 V AC / 50 Hz,
Pos. 1:
fusing by others max. B 6 A
Speed selection switch
Pos. 2:
Geko Nr.1, 3-speed fan
Pos. 3:
Geko Nr.2, 3-speed fan
Pos. 4:
• Connect multiple Flex-Geko units in
accordance with the wiring diagram.
PR-2011-0115-GB • Subject to modifications • R4-12/2015
Flex-Geko Fan Coil Unit