EnamelStainlessModel
see diagram°CMin/max HM-temp
Pipe connections
28mmBrine ext diam. CU pipe
22mmHeating medium ext diam. CU pipes
22mmHot water connection external diam
22mmCold water connection external diam
Hot water and heating section
178 / 176 / 178lVolume, heater (Cu / SS / E)
1.0 (10 bar)MPaMax pressure in water heater
Hot water heating capacity (comfort mode Normal) According to EN16147
245lAmount of hot water (40 °C)
2.6COP
DHW
(load profile XL)
Compressor oil
POEOil type
0.68lOil volume
Dimensions and weight
600 x 620 x 1,800mmWidth x Depth x Height
1,950mmCeiling height
4
228188kgWeight complete heat pump
95kgWeight only cooling module
Lead in brass componentsSubstances according to Directive (EG) no. 1907/2006, article 33 (Reach)
-065 474Part number, 1x230 V (Rf)
065 468065 473Part number, 3x400 V (Cu/Rf/E)
1
Scale for the product’s efficiency class room heating: A+++ to D.
2
Scale for the system’s efficiency class room heating: A+++ to G. Reported efficiency for the system takes the product’s temperature
regulator into account.
3
Scale for efficiency class hot water: A+ to F.
4
With feet removed, the height is approx. 1,930 mm.
WORKING RANGE HEAT PUMP,
COMPRESSOR OPERATION
The compressor provides a supply temperature up to
65 °C at -5 °C incoming brine temperature.
Working range below 75 %.
0
-15 -10 -5 0 5 10 15 20 25 35
20
40
60
70
Vattentemperatur
(°C)
Köldbärare in
(°C)
30
Framledning
Returledning
50
30
10
Vattentemperatur
°C
Arbetsområde under 75% för F1155-1255 6kW,
för hela arbetsområdet 12 och 16 kW.
°C
Framledning
Returledning
0
-15 -10 -5 0 5 10 15 20 25 30 35
20
10
30
40
50
60
70
Köldbärare in, temperatur
Temperature, °C
Flow pipe
Return pipe
Incoming brine temp, °C
Working range above 75 %
Vattentemperatur
°C
Arbetsområde över 75% för F1155-1255 6kW
°C
Framledning
Returledning
0
-15 -10 -5 0 5 10 15 20 25 30 35
20
10
30
40
50
60
70
Köldbärare in, temperatur
Temperature, °C
Flow pipe
Return pipe
Incoming brine temp, °C
Caution
For operation of S1255PC above 75% com-
pressor speed, unlocking in menu 5.1.24 is re-
quired. This can produce a louder noise level
than the value stated in the technical specifica-
tions.
71Chapter 13 | Technical dataNIBE S1255PC