Technical specifications
1X230 V, 3X230 V, 3X400 V
S1255-16S1255-12S1255-6Model
Output data according to EN 14511
4 – 163 – 121.5 – 6kWHeating capacity (P
H
)
0/35 nominal
8.895.063.15kWHeating capacity (P
H
)
1.831.040.67kWSupplied power (P
E
)
4.854.874.72COP
0/45 nominal
8.634.782.87kWHeating capacity (P
H
)
2.291.270.79kWSupplied power (P
E
)
3.773.753.61COP
10/35 nominal
11.226.334.30kWHeating capacity (P
H
)
1.841.030.66kWSupplied power (P
E
)
6.116.126.49COP
10/45 nominal
10.925.983.98kWHeating capacity (P
H
)
2.321.300.83kWSupplied power (P
E
)
4.724.594.79COP
SCOP according to EN 14825
16126kWRated heating output (P
designh
)
5.5 / 4.25.4 / 4.35.5 / 4.1SCOP cold climate, 35 °C / 55 °C
5.2 / 4.15.2 / 4.15.2 / 4.0SCOP average climate, 35 °C / 55 °C
Energy rating, average climate
A+++ / A+++A+++ / A+++A+++ / A+++The product's room heating efficiency class 35 °C / 55 °C
1
A+++ / A+++A+++ / A+++A+++ / A+++The system's room heating efficiency class 35 °C / 55 °C
2
A / XLA / XLA / XLEfficiency class hot water heating / declared tap profile
3
Noise
36 – 4736 – 4736 – 43dB(A)Sound power level (L
WA
)
EN 12102
at 0/35
21 – 3221 – 3221 – 28dB(A)
Sound pressure level (L
PA
) calculated values according to EN ISO
11203 at 0/35 and 1 m range
Electrical data
2 – 1802 – 1803 – 140WOutput, Brine pump
3 – 1402 – 602 – 60WOutput, Heating medium pump
IPx1BEnclosure class
Equipment Compliant with IEC 61000-3-12
For Connection Design Purposes, Compliant with IEC 61000-3-3 technical requirements
WLAN
11dbm2.412 - 2.484 GHz max power
Wireless units
4dbm2.405 - 2.480 GHz max power
Refrigerant circuit
R407CType of refrigerant
1,774GWP refrigerant
2.22.01.16kgFill amount
3.903.552.06tonCO
2
equivalent
3.2 (32 bar) / 0.15 (1.5 bar)MPaCut-out value pressure switch HP / LP
Brine circuit
0.05 (0.5 bar) / 0.45 (4.5 bar)MPaMin/max system pressure brine
0.510.290.18l/sNominal flow
9511564kPaMax external avail. press at nom flow
see diagram°CMin/Max incoming Brine temp
-12°CMin. outgoing brine temp.
Heating medium circuit
0.05 (0.5 bar) / 0.45 (4.5 bar)MPaMin/Max system pressure heating medium
0.220.120.08l/sNominal flow
717369kPaMax external avail. press at nom flow
NIBE S1255Chapter 13 | Technical data70