48
Dealing with malfunctions
Close the shut-off valves in heating medium system.
Open the drain valve (27). A small amount of
water runs out, however, to fully empty the heating
medium side requires the connector that joins the
heating medium side and the connection on the heat
pump VB-flow to be loosened a little to allow air to
enter so the remaining water can run out. When the
heating medium is empty the requisite service can be
carried out.
When replacing the brine pump or drive side or when
cleaning the pump, the shut-off valves in the collector
system should be closed. Open the drain valve (25,26)
under the evaporator and loose the brine pump on
the evaporator. The loose hose end can now be bent
down and emptied in a small bowl. Now loosen the
connection to
KB
a little to allow air to enter so the
heat pump’s collector side is emptied completely.
When the circuit is empty the requisite service can be
carried out.
Draining, heat medium side
Draining, collector side
If the operating disturbance cannot be rectified by means of the above,
an installation engineer should be called.
The drain-pipe for the chassis is already assembled in
advance before leaving the factory. The consumer is
required to place the hose at appropriate location.
Draining, the chassis
24
26
27
25
Draining Hole of heat medium system
Draining Hole of the chassis
