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HYDRONIC UNIT
Function
Parameter Description
Min heating water
120
temperature
Max heating water
121
temperature
Max outdoor air
temperature in cooling
122
mode
Min outdoor air
temperature in cooling
123
mode
Min cooling water
124
temperature
Max cooling water
125
temperature
Outdoor air temp.
126
sensor GMC
TO sensor value
127
TE sensor value
128
TS sensor value
129
TD sensor value
130
Operating mode
131
Compressor max
132
frequency
Requested frequency
133
Actual frequency
134
Compressor run time
135
Capacity
136
EWT sensor value
137
LWT sensor value
138
TR sensor value
139
Operating mode
140
Errors
141
Gmc software version
142
Gmc software version
143
Water pump run time
144
Current water set
145
point
Clean contact off
146
Alarm/ ambient air
147
temperature reached
Code used to select the minimum outdoor temperature of the heating climate curve. 20°C
Code used to select the maximum outdoor temperature of the heating climate curve. 20°C
Code used to select the maximum outdoor temperature of the cooling climate curve,
which depends on the country where the system is installed.
Code used to select the minimum outdoor temperature of the climate curve in
cooling mode
Code used to select the minimum water temperature of the climate curve in cooling
mode.
Code used to select the maximum water temperature of the climate curve in cooling
mode.
Code used to indicate whether the GMC outdoor air temperature sensor is installed
or not
1. GMC external air temperature sensor installed
2. GMC external air temperature sensor not installed
The code indicates the outdoor air temperature value measured by the TO sensor
The code indicates the refrigerant temperature value measured by the TE sensor
The code indicates the refrigerant temperature value measured by the TS sensor
The code indicates the refrigerant temperature value measured by the TD sensor
The code indicates the current operating mode of the Heat Pump
1. Off
2. Cooling
3. Heating
4. Faulty
5. Defrost
The code indicates the maximum frequency of the compressor calculated by the
GMC control board
The code indicates the frequency requested by the system control
The code indicates the actual compressor frequency
The code indicates the compressor working hours
The code indicates the nominal capacity of the heat pump (kW)
N.A.
The code indicates the temperature of the water leaving the heat pump read by the
LWT sensor
The code indicates the temperature of the refrigerant measured by the TR sensor
The code indicates the operating mode requested by the System Control
0. Off
1. Stand by
2. Cooling
3. Heating
4. N.A.
5. N.A.
6. Nominal Heating
7. Nominal cooling
8. Antifreeze protection
9. Defrost
10. High temperature protection
11. Compressor start waiting
12. System error
The code lists all the error codes detected by the outdoor unit. If there are no errors,
no code is displayed.
The code indicates the GMC software release
The code indicates the GMC Software Version
The code indicates how long the water pump has been operating.
The code indicates the current water set point set by the system control.
Code used to set the various SWITCHING OFF logics
1. Standard OFF
2. Controlled OFF cycle (only if the Heat Pump is controlled by clean contact)
Code used to select the output connected to PIN 5 of the terminal board
1. Alarm signal
2. Signal that the air temperature set point has been reached
Value range
Default value Set value
Min
Max
60°C
35°C
60°C
55°C
24°C
46°C
40°C
0°C
30°C
20°C
4°C
20°C
4°C
4°C
20°C
15°C
1
2
2
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-
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-
-
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-
-
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-
-
-
-
-
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-
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-
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-
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-
-
-
-
-
-
-
-
-
-
-
-
1
2
1
1
2
1
Min
Max
55
Lock
Lock
Lock
Lock
Lock
Lock
Lock
Lock
Lock
Lock
Lock
Lock
Lock
Lock
Lock
Lock
Lock
Lock
Lock
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