Nibe FLM - Troubleshooting; Troubleshooting: Low or Lack of Ventilation; Troubleshooting: High or Distracting Ventilation

Installation alternative
ANOTHER HEAT PUMP
When NIBE FLM is installed together with another heat
pump, the brine circuit is supplied with a trim valve
(RN1). This is necessary for adjusting the brine flow.
P
-QZ20
-RN1
FLM COOLING
Where cooling is prioritised, NIBE FLM can be installed
in the brine circuit after the heat pump in the direction
of flow.
For FLM cooling, minimum software version 5539R5 is
required.
P
-QZ20
FLM cooling Requires an external fan (GQ4), four
dampers that are controlled by two motors (QM40),
(QM41) and a non-return damper (RM2). A room sensor
(AZ1-BT50) is also required in one of the rooms where
cooling is required. For electrical connection, see page
20.
The external fan (GQ4) takes over ventilation, which is
led out of the house without recovery. At the same time,
NIBE FLM circulates air to and from other rooms where
cooling is required, normally two to three bedrooms.
Bedroom Hall
Kitchen/
bathroom/
WC
QM41
QM40
GQ4
RM2
Normal operation.
Bedroom Hall
Kitchen/
bathroom/
WC
QM41
QM40
GQ4
RM2
15Chapter 4 | Pipe and ventilation connectionsNIBE FLM