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CIAT AQUALIS 2 Series User Manual

CIAT AQUALIS 2 Series
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6.
FAULTS
6.1 Temporary and permanent
There are two types of fault: temporary and permanent
- Temporary faults cause the unit to enter fault-tolerant mode and the fault type flashes on the terminal LCD. Temporary faults
are not stored in memory and the fault relay is not stuck in a particular position (exceptions: terminal link fault and fault d4.9).
- Permanent faults shut down the unit and, depending on the settings, activate the auxiliaries. The fault type appears on the ter-
minal LCD. Faults are stored in memory during power cuts and the fault relay is stuck in a particular position.
Fault management remains on during test mode.
6.2 Tables
Fault No. Fault description Fault type Possible causes of fault
No display Terminal link Temporary Cut terminal wire, Microconnect control board fault
d1.1
Compressor rotation
or water flow rate fault
Permanent Wires on three-phase compressor reversed or water flow rate on indoor circuit too high
d1.2 High-pressure switch
Temporary Less than 5 cuts at high pressure (41.5 bar) in 24 hours
Permanent More than 5 cuts at high pressure (41.5 bar) in 24 hours (dirty condenser, overcharge)
d2 Four-way valve Permanent Four-way valve blocked open or closed.
d3
Differential pressure switch
open
Temporary then
permanent
Low flow rate in water circuit caused by a dirty filter or air in the ciruit, or the
circulator is either not working or power is not supplied
d4.1 Outdoor temperature sensor
Temporary
Outdoor temperature sensor opened or short-circuited
d4.2
Water inlet
temperature sensor
Exchanger water inlet temperature sensor opened or short-circuited
d4.3
Water outlet
temperature sensor
Exchanger water outlet temperature sensor opened or short-circuited
d4.4 Coil freon temperature sensor Coil freon inlet temperature sensor opened or short-circuited
d4.5
Exchanger freon
temperature sensor
Exchanger freon inlet temperature sensor opened or short-circuited
d4.6 Terminal sensor Terminal sensor opened or short-circuited
d4.7 Pool temperature sensor Pool temperature sensor opened or short-circuited
d4.8
Outdoor exchanger water
outlet temperature sensor
or floor thermostat
Permanent
Outdoor exchanger water outlet temperature sensor opened or short-circuited
or floor inlet temperature above 60°C (control problem)
d5
Unit outside limits
of use
Temporary
cooling: condenser water return = 40°C (P95)
heating: condenser water return = P96
heating: outdoor temperature = P09
Permanent Unit without auxiliaries (P6 = 0) with water return < P26 inhibiting defrosting
d6
Exchanger frost protection set
to water
Temporary/
Permanent
Exchanger water supply temperature
P93
Permanent fault if 3 faults in 24 hours
d7
Exchanger frost protection set
to freon
Temporary/
Permanent
Freon temperature in exchanger = P94
Permanent fault if 3 faults in 24h
d8
Exchanger frost protection
set to difference
Permanent Difference between exchanger freon and water supply temperatures in cooling mode
d9.1 Terminal fault Temporary Terminal fault
d9.2 EEPROM fault Temporary Control board EEPROM fault

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CIAT AQUALIS 2 Series Specifications

General IconGeneral
BrandCIAT
ModelAQUALIS 2 Series
CategoryHeat Pump
LanguageEnglish

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