Pipe Connections; Temperature Sensor - Nibe ECS 40 Installateurhandbuch

Pipe connections

General
When connecting extra climate systems, they must be
connected so that they have a lower working temperature
than the climate system 1.
Circulation pump and mixing valve
The extra circulation pump (GP20) is positioned in the
extra climate system according to the outline diagram.
F1145/F1245/F1345/F750/VVM500
The mixing valve (QN25) is located on the flow line
after the heat pump/indoor module, before the first
radiator in the climate system 1. The return line from
the additional climate system must be connected to
the shunt valve and to the return line from the heating
system 1, see image and outline diagram.
F370/F470
First drain the boiler water reservoir/heating system if
filled with water.
Unscrew the plugged connection that is on the docking
connection (XL8).
Install the supplied plastic pipe with coupling in the
docking connection (XL8).
The mixing valve (QN25) is located on the flow line
after the heat pump from its docking connection (XL8).
The return line from the extra climate system is connec-
ted to the mixing valve and to the return line from the
heating system 1, see image and outline diagram.
NOTE
Incorrect installation can affect the function.
By-pass valve,
Connections, Ø 22 mm
(QN25)
Heat pump
LEK

Temperature sensor

The flow temperature sensor (BT2) is installed on the
pipe between the circulation pump (GP20) and mixing
valve (QN25).
The return line sensor (BT3) is installed on the pipe from
the extra climate system.
Install the temperature sensors with cable ties with the
heat conducting paste and aluminium tape. Then insulate
with supplied insulation tape.
NOTE
Sensor and communication cables must not be
placed near power cables.
Return
Flow pipe
GB
15