Nibe S1155 - Dimensions and Pipe Connections

MeaningSymbol
Hot water circulation
SYSTEM DIAGRAM
S1155 consists of heat pump, immersion heater, circu-
lation pumps and control system. S1155 is connected
to the brine and heating medium circuits.
In the heat pump evaporator, the brine (water mixed
with anti-freeze, glycol or ethanol) releases its energy
to the refrigerant, which is vaporised in order to be
compressed in the compressor. The refrigerant, of which
the temperature has now been raised, is passed to the
condenser where it gives off its energy to the heating
medium circuit and, if necessary, to any docked water
heater. If there is a greater need for heating/hot water
than the compressor can provide there is an integrated
immersion heater.
XL
1
6 9 7 2
Connection, heating medium flowXL1
Connection, heating medium returnXL2
Connection, brine inXL6
Connection, brine outXL7
Connection, hot water heaterXL9
Dimensions and pipe
connections
600
55
135
390
465
540
622
560
725* 725*
440
70
1500
20-50
25
600
55
135
390
465
540
622
25
560
725* 725*
440
70
1500
20-50
XL1 XL6 XL7XL9 XL2
PIPE DIMENSIONS
25
kW
16
kW
12
kW
6
kW
Connection
352822(mm)(XL1)/(XL2) Heating medi-
um supply/return ext. Ø
352822(mm)(XL9) Connection water
heater ext. Ø
3528(mm)(XL6)/(XL7) Brine in/out ext.
Ø
* Can be angled for side connection.
15Chapter 4 | Pipe connectionsNIBE S1155