26
Display,
continued
Meaning of the
LEDs,
continued
LEDs
Description
+
+
The constant green Lightning indicates that power is con-
nected to the unit. The Drop and the Triangle are flashing on
and off in green and red, respectively, to indicate that the
condenser sensor has sensed a failure.
If the low-pressure pressostat registers a too low pressure in
the cooling circuit, caused by a too low temperature across
the evaporator, the unit will be stopped until the required
pressure has been re-established and the low-pressure
pressostat then switches on the unit again.
After resetting, the Triangle is switched off and the Drop
continues to flash on and off. The Lightning is constantly
green.
+
When the Drop flashes on and off in green and the Lighting
is constant green, this indicates that the unit is working but
there has been a failure on the unit through the LP presso-
stat.
The flashing Drop is switched off by turning the unit OFF and
ON on the main switch.
+
+
A constantly green Lightning indicates that power is on. The
Drop and the Triangle LEDs flash on and off in green and
lights up constantly in red, respectively, to indicate that the
HP pressostat or the thermal relay has switched off the com-
pressor and that the unit has been cut off.
If the high-pressure pressostat has registered a too high
pressure in the cooling circuit, caused by a too high temper-
ature across the condenser, the compressor will be switched
off and the unit stops. The thermal relay also switches off
the compressor and stops the unit, if the temperature in the
compressor gets too high. If the unit switches off again after
having reset the HP pressostat and the thermal relay, the unit
must be checked by a service engineer. (See section 7. Faults
and how to remedy them). The flashing Drop is switched off
by turning the unit OFF and ON on the main switch.
Continued overleaf
