Thermics LUNA 2T, Инструкция по установке, техническому обслуживанию и ремонту

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LUNA 2T | MAINTENANCE
F
aUlT
C
aUse
s
olUTion
U/i/a
Low suction
pressure (less than
3.5 bar)
Outside temperature below
operating limits
Check I
Low system inlet water temperature
in summer mode
Check I
Abnormal fan operation
Check and if necessary replace
the component
I/A
Drain cooling circuit Check for leaks and refill I
Finned heat exchanger clogged or
frozen
Check I/A
High suction
pressure (over 15
bar)
High outdoor air temperature Check I
High system inlet water
temperature in summer mode
Check I
Thermostatic expansion valve
failure in cooling mode
Check and if necessary replace
the component
A
The compressor
stops due to
protection device
activation
Excessive delivery pressure Check A
Low suction pressure Check A
Low supply voltage Check I
Electrical connections poorly
tightened
Check I
Operation outside the allowed
limits
Check I
Poor operation of probes and
pressure switches
Replace the component I/A
Thermal cut-out tripping
Check supply voltage A
Check the electrical insulation of
the windings
A
High power
consumption
Cooling circuit pressure too high
compared to what recommended
by the manufacturer
Check the max. absorption
expected indicated on the
nameplate
I
Non-compliant voltage Check supply voltage I
Operation outside the allowed
limits
Check I
Water coming out
from the Domestic
Hot Water safety
valve
Mains water pressure too high
Install a pressure reducer on the
inlet from the water mains
I
Incorrect expansion vessel pre-
charge pressure
Check the expansion vessel and
the pre-charge pressure
I
Water temperature too high
Make sure that the probes in the
boiler are correctly positioned,
check the temperature indicated.
I
Safety valve faulty Replace component I