User Instructions for GECO GH21TA controller
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Page 25 Edition I
19.06.2013
8.
System installation
8.1
Heating installation number 1
The following list specifies the parameters available to the user, along with the assignment of
outputs for attached devices and inputs for temperature sensors.
Diagram 1 - Summary of user parameters
Parameter
Range
Factory settings
Set temperature of boiler
50 ÷ 85
50°C
Feeder stop time
5 ÷ 250
45s
Maintain time
1 ÷ 250
15min
Fan speed
1 ÷ 10
5
Diagram 1 - Assignment of controller outputs
Output
Device connected
O5-O6
CH pump
O7-O8
---
O9-11
Feeder
12-14
Fan
Diagram 1 - Assignment of controller inputs
Input
Description
50-51
Sensor for water leaving the boiler
52-53
---
54-55
Fuel feeder sensor (Optional)
56-57
Reed relay
58-59-60-61
GECO GA03HA room panel (Optional)
