SYSTEM DIAGRAM
F1245 consists of a heat pump, water heater, electrical
module, circulation pumps and a control system. F1245
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 the water heater.
If there is a greater need for heating/hot water than the
compressor can provide there is an integrated immersion
heater.
Connection, heating medium flowXL1
Connection, heating medium returnXL2
Connection, cold waterXL3
Connection, hot waterXL4
Connection, brine inXL6
Connection, brine outXL7
Dimensions and pipe
connections
620
600
560 440
70
1775
650*
25-50
25
50
130
210
390
470
525
650*
620
600
560 440
70
1775
650*
25-50
25
50
130
210
390
470
525
650*
PIPE DIMENSIONS
126-10(kW)Connection
28(mm)(XL6)/(XL7) Brine in/out ext Ø
2822(mm)(XL1)/(XL2) Heating medium
flow/return ext Ø
22(mm)(XL3)/(XL4) Cold/hot water Ø
* Can be angled for side connection.
17Chapter 4 | Pipe connectionsNIBE F1245