USER INSTRUCTIONS GH11RA STRONA 4
Wydanie I STYCZEŃ 2010
1. GENERAL FEATURES
The GH11RA Controller is a microprocessor-based device manufactured using the Surface Mount
Technology (SMT). It is designed to control the processes of Domestic Hot Water (DHW) heating and the
main Space Heating (SH) water circuit. Control parameters can be adjusted to the current operating
conditions and boiler type. The Controller includes a system protecting from power outages and other
different disturbances.
The GH11RA Controller is fitted with:
• inputs:
1. boiler output water temperature measurement (NTC sensor),
2. fuel feeder temperature measurement (NTC sensor),
3. DHW boiler water temperature measurement (NTC sensor),
• digital input:
4. feeder cotter pins removal sensor – reed switch,
• input (RS485) for connection of the room control panel GA01HA manufactured by GECO.
It also contains four outputs allowing direct connection of 230 V AC devices, i.e.: fan, fuel feeder, SH
circulation pump, DHW pump or mixing pump, depending on the type of the controlled heating system (⇒
section 5, page 3).
ALWAYS DISCONNECT THE CONTROLLER FROM POWER DURING
THUNDERSTORMS
2. TECHNICAL DATA
Power supply 230V
AC +10% -15%
NTC sensor resistance
characteristics
Operating temperature range +5°C to +40°C
Humidity 20% to 80% RH
Temperature
°C
Resistance
Ω
Fan protection 3.15A
0 7174.89
Sensor type
NTC 2.2kΩ
10 4374.83
Sensor operating temperature
range
0°C÷100°C
20 2747.10
30 1774.91
40 1172.09
Output
Maximum continuous
load
50 795.08
60 547.95
DHW pump / mixing pump 1A 200W
70 384.62
SH pump 1A 200W
80
275.86
Fuel feeder 2A 400W
90
202.37
Fan 1A 200W 100 149.16
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