Technical data
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3.4   TECHNICAL DATA
Table 3.1 – GS HT/LT technical data
GAHP GS LT GAHP GS HT
OPERATION WHEN HEATING
OPERATING POINT B0W50* (Brine inlet 0°C, hot Water outlet +50°C)
G.U.E. gas usage efficiency % 150 (1) 149 (1)
Thermal power delivered kW 37,7 (1) 37,6 (1)
Power recovered from 
renewable source
kW 12,4 12,6
OPERATING POINT B0W35* (Brine inlet 0°C, hot Water outlet +35°C)
G.U.E. gas usage efficiency % 170 (1) --
Thermal power delivered kW 42,6 (1) --
Power recovered from 
renewable source
kW 17,0 --
OPERATING POINT B0W65* (Brine inlet 0°C, hot Water outlet +65°C)
G.U.E. gas usage efficiency % -- 125 (1)
Thermal power delivered kW -- 31,5 (1)
Power recovered from 
renewable source
kW -- 7,9
Thermal capacity
Nominal (1013 mbar - 15°C) kW 25,7
true peak kW 25,2
NOx emission class 5
NOx emission ppm 25
CO emission ppm 36
Hot water delivery temperature
maximum for heating °C 55 65
maximum for DHW °C 70
Hot water return temperature
maximum heating °C 45 55
maximum for DHW °C 60
minimum temperature in 
continuous operation** 
°C 20 30
Hot water flow rate
nominal l/h 3250 3170
maximum l/h 4000
minimum l/h 1400
Hot water pressure drop
for nominal water flow 
(B0W50)
bar 0,49 (2)
Ambient air temperature (dry bulb)
maximum °C 45
minimum °C 0
Thermal differential nominal °C 10
gas consumption
methane G20 (nominal) m3/h 2,72 (3)
G30 (nominal) kg/h 2,03 (4)
G31 (nominal) kg/h 2,00 (4)
RENEWABLE SOURCE OPERATING CONDITIONS
Renewable source water flow rate (with 25% glycol)
nominal (B0W50) l/h 3020
maximum l/h 4000
minimum l/h 2000
Renewable source pressure drop at nominal flow rate bar 0,51 (2)
Renewable source water return temperature maximum °C 45
Renewable source delivery water temperature  minimum °C -10 -5
ELECTRICAL SPECIFICATIONS
Power supply
Voltage V 230
TYPE  SINGLE PHASE
Frequency
50 Hz 
supply
50
Electrical power absorption nominal kW 0,47 (5)
Degree of protection IP X5D
INSTALLATION DATA
Level of acoustic pressure at 10 meters (maximum) dB(A) 39 (7)
Minimum storage temperature °C -30
Maximum operating pressure bar 4
Maximum condensation water flow rate l/h 4,0
Water content inside the apparatus
HOT SIDE l 4
COLD SIDE l 3
Water fitting
TYPE F
thread " G 1 1/4
Gas fitting
TYPE F
thread " G 3/4
Safety valve outlet channel fitting " G 1 1/4
Fume outlet
Diameter (∅) mm 80
Residual head Pa 80
Product configuration C63










