Galletti LCE 082 HS [41/64] Water pressure drops

Galletti LCE 364 HS [41/64] Water pressure drops
LCE
RG66004766_rev.05
41
FAULT
Analysis of possible causes Corrective action
High evaporation pressure.
Water T too high. Check the thermal load and /or
thermostat operation.
Check the operation of the
thermostat valve.
Defrosting absent or incomplete
(HS-HL-HQ versions).
Error in parameter settings. Check the setting of the start and
end defrost parameters on the
microprocessor.
Check whether defrosting water is
properly drained from the coils.
Check the uniformity of the
refrigerant circuit outlet
temperatures at the top and bottom
of the coils: the maximum
temperature differential allowed is
10 °C. Check the refrigerant level.
The 4-way valve has failed to
work.
Check whether it is regularly
energized and deenergized.
Free Cooling malfunctioning
(FS-FL versions)
No switch of activated 3-way valve. The opening of the valve can be
forced manually, but it is
recommended
to leave the unit in
mechanical operation.
No switch of deactivated 3-way
valve
The valve must be closed manually,
replacing the booster as soon as
possible.
13 WATER PRESSURE DROPS
13.1 PRESSURE DROPS IN EVAPORATOR
Note: please refer to the product's data sheet (PD) for this kind of information.
13.2 PRESSURE DROPS IN HEAT RECUPERATOR
Note: please refer to the product's data sheet (PD) for this kind of information.
13.3 PRESSURE DROPS IN FREE-COOLING FINNED PACK HEAT EXCHANGERS
Note: please refer to the product's data sheet (PD) for this kind of information.

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