Maintenance; Dealing With Malfunctions - Nibe ES 160 Installation And Maintenance Instructions Manual

GB

Maintenance

Maintenance
Safety valve
The safety valve (23) should be inspected regularly,
about 4 times a year, to prevent clogging.
The check is made by turning the safety valves knob
anticlockwise, water should then flow through the over-
flow pipe. If this does not happen then the safety valve
is defective and must be changed.
The safety valve sometimes releases a little water after
hot water has been tapped. This discharge is caused by
the expansion of the cold water taken into the water
heater, resulting in a pressure increase, whereby the
safety valve opens.
Emptying
Turn off the power to the water heater.
Shut off the cold water inlet with valve (A).
Loosen the cover of the drain valve (8) and mount the
supplied hose connector and hose.
Turn the drain valve (8).
During draining, air must be let into the water heater by
loosening the hot water heater connection (42) or a hot
water tap. In order to ensure the complete emptying
of the water heater, the hose connection must be com-
pletely tight and the outlet must be below the lowest
point of the water heater.
When mounted in locations exposed to the risk of frost,
the water heater must be emptied whenever not in op-
eration. Freezing will result in the water heater bursting.
10

Dealing with malfunctions

Check the installation's fuses and the setting of the
thermostat and mixing valve.
Wait a few hours without tapping any hot water and
then check whether the temperature level has risen. If
there is still no hot water, contact the installation
engineer.
Resetting the temperature limiter
If the temperature limiter (5) tripped, the water heater
must cool for at least one hour before it can be reset.
1. Remove the plastic cover (2).
2. Press the button on the temperature limiter lightly,
max 15 N (approx. 1.5 kg).
NOTE!
Electrical installation and service must be
carried out under the supervision of a
qualified electrician.
5
6
Max 15 N (approx. 1.5 kg)
K
L E
2-phase installation
Reconnecting sensors
Reconnection of sensors for thermostat and tempera-
ture limiter.
2-phase installation
Service
For service, contact the installer. The serial number
(95), (14 digits) and installation date should always be
stated. Only electrical equipment supplied by NIBE AB in
Markaryd may be used.
ES
Max 40 N (approx. 4 kg)
LEK
3-phase installation
Limit Therm
STB TR
3-phase installation