Nibe FIGHTER 1220, Installation And Maintenance Instructions Manual

Page: 42 / 60

Actions with operating disturbances
FIGHTER 1220
For the Installer
40
NOTE!
The
product’s serial number
should always be stated with all
correspondence with NIBE.
689_ _ _ _ _ _ _ _ _ _ _
-- Alarm LP--
This information is shown when the low pressure
switch in FIGHTER 1220 has tripped. The compressor
is blocked and FIGHTER 1220 switches to electric
boiler mode. No hot water is produced.
This may be due to:
■
Bad circulation in collector system due to inferior
venting/low pressure or ice (if ice has formed the
brine pump (35) will be warm).
■
Brine pump (35) malfunction.
■
Iced evaporator due to too low antifreeze concen-
tration.
■
Leakage in the collector circuit.
Alarm indications on the display
The background lighting on the display flashes with an
alarm and the following information is shown depend-
ing on the fault. An alarm log is created with each
alarm containing a number of temperatures, times and
the status of outputs. The four alarms are saved on
menu 9.5.0 — 9.8.0.
The following alarms stop the compressor and brine
pump. The alarms can only be acknowledged by
switching off the heat pump for 10 seconds and then
started again. This is done using switch (8).
- - A L A R M L P - - 1
1 . 0
-- Alarm HP--
This information is shown when the high pressure
switch in FIGHTER 1220 has tripped. The compressor
is blocked and FIGHTER 1220 switches to electric
boiler mode. No hot water is produced.
This may be due to:
■
No or low flow on the brine pump (16).
■
Closed thermostat valves.
- - A L A R M H P - - 1
1 . 0
-Brine level- (accessory)
Shows that the level or pressure in the collector circuit
is low. The compressor is blocked and FIGHTER
1220 switches to electric boiler mode. No hot water is
produced.
This may be due to:
■
Leakage in the collector circuit.
- B R I N E L E V E L -
1 . 0
-- Alarm MP--
Shows when the motor cut-out on the compressor has
tripped. The compressor is blocked and FIGHTER
1220 switches to electric boiler mode. No hot water is
produced.
This may be due to:
■
Dropped phase due to tripped fuses
■
Incorrect setting on the motor cut-out.
- - A L A R M M P - - 1
1 . 0
-- Alarm TL--
Shown when the temperature limiter on the electric
module has tripped. The immersion heater is blocked,
any set automatic operations are disabled as the
operating mode switches to spring/autumn.
NOTE! Acknowledged by pressing in the button on
the temperature limiter (25) and switching off the heat
pump for 10 seconds and then switching it on again.
This is done using switch (8).
- - A L A R M T L - - 1
1 . 0
B R I N E T E M P L O W
1 . 0
BRINE TEMPERATURE LOW
Shown when the brine return temperature is lower
that the set value. Factory setting OFF. Not indicated
when menu 5.2 is set to automatic return YES.
If the operating disturbance cannot be rectified by means of the above an installation
engineer should be called.