
User Instructions for GECO GH21RA controller
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Page 39 Edition I
19.06.2013
Puncture or damage to the capillary of the temperature limiter
indicates a leakage, which can lead to the GH21RA malfunctioning.
In this event, disconnect the temperature limiter from the GH21RA
controller, and replace it with a new device.
13.
Loss of power
After loss of power, the controller will return to the state it was in before the power was
cut:
•
If if was turned off, it will remain off
•
If it was in preview mode, it returns to this state
•
If it was in automatic mode, it will return to automatic mode according to preset
parameters
•
If it was in manual mode, it will return to manual mode, according to preset
parameters
•
If it was in alarm mode, it will remain off
14.
GH03HA room panel
The GH21RA controller is fully compatible with the GECO GA03HA room panel, allowing
the boiler to be operated from the comfort of your home.
When the GH21RA controller is connected to the GA03HA room panel, it is possible to:
•
Change the set boiler temperature
•
Change the set DHW temperature
•
Monitor text information about all alarms
•
Monitor boiler operation status
•
Monitor the status of connected devices (feeder, fan, CH pump, DHW pump)
•
Monitor all temperature measurements
•
Monitor operation history, including all alarms and notes.
•
See information about current additional functions of the controller.