Acond PRO-N, Руководство по эксплуатации

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Heat pumps AIR / WATER
Operation manual 35
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A01 HIGH PRESSURE Activation of the pressure switch on
the cooling circuit
Low or no water flow through plate
heat exchanger
Clogged water filter
Closed tap on water circuit Clean the water filter
Increase the water flow
through the plate heat
exchanger and thus
reduce the outlet water
temperature
Check the permeability
of the heating circuit
A02 LOW PRESSURE Activation of the pressure switch on
the cooling circuit
Misaligned defrosting
Outdoor temperature too low for
heat pump operation
Refrigerant leakage Call Service
A03 COMPRESSOR
RUNNING, PHASE
SEQUENCE Compressor not running - electrical
fault, balancing problems of the
power grid (undervoltage at some
stage) Check that the
compressor is rotating. If
not, call service.
A04 LOW EARTH
COLLECTOR
TEMPERATURE Low temperature Call Service
A05 HIGH TEMP OF
EVAPORATOR Evaporator temperature during
defrosting or even after defrosting
has finished exceeded the set value
of parameter AL11 Call Service
A06 LOW TEMP OF
EVAPORATOR
Evaporator temperature has
dropped below parameter AL14 Call Service
A07 ANTI-FREEZE
PROTECTION Too low water temperature in plate
exchanger Call Service
A08 service water
heating Maximum service water heating time
expired Check service water
circuit venting
A12 Defrost Unit did not freeze sufficiently Check the frost on the
outdoor unit.
A13 LARGE NUMBER
OF DEFREEZES Defrost switches too often Check that the fan
propeller rotates
Contact service