Troubleshooting, Guide For The Owner And Accessories; Troubleshooting; Guide For The Owner; Accessories - Carrier AquaSnap 30RB Serie Installationanweisungen

13 - TroubleSHooTIng, guIde for THe oWner
ANd ACCessories

13.1 - troubleshooting

Unit compressor and fan will not start:
• Unit not energized; check the mains power
connections.
• Mains switch OFF; check and put in the ON position.
• Main switch fuses have blown; replace.
• Wait for 2 minutes; compressor cycling protection is
on.
• Pressure switch open; check and eliminate cause.
• Mains voltage too low.
• Electrical connections loose or wrong; check and
repair.
Compressor will not start, but unit fan is running:
• Electrical connections of compressor loose or wrong;
check and repair.
• Compressor burnt out, seized or protection device
open; check for the cause and replace compressor if
necessary.
Compressor starts, but stops due to its overtemperature
protection (other than stops caused by the normal
operation of the thermostat):
• Wrong refrigerant charge (excessive or low) or air or
other non-condensable gases in the circuit; drain
refrigerant (see note 1), evacuate and recharge.
• Mains voltage wrong (too high or too low).
• Condenser coil obstructed; remove obstructions.
• Fan off; check cause and repair.
• Run capacitor faulty; check and replace.
• Indoor unit thermostat faulty; replace.
• Refrigerant circuit clogged; check and remove
obstructions.
• Expansion device clogged or covered with ice; drain
refrigerant (see note 1), evacuate and recharge.
Compressor runs continuously:
• Unit selected too small for actual air conditioning
needs.
• Water temperture selection too low; check
temperature selection.
• Refrigerant charge low; check and add refrigerant.
• Outdoor unit fan faulty; replace.
• Air or other non-condensable gases in the circuit;
drain refrigerant (see note 1), evacuate and recharge.
• Obstruction in the air intake or dirty indoor unit
filters; remove obstruction or clean filter.
Discharge pressure too high:
• Coil dirty or obstructed; clean or remove obstructions.
• Refrigerant charge too high; drain some refrigerant
(see note 1).
• Air or other non-condensable gases in the circuit;
drain refrigerant (see note 1), evacuate and recharge.
Discharge pressure too low:
• Refrigerant charge too low; add refrigerant.
• Coil dirty or obstructed; clean or remove obstructions.
• Water filter dirty; clean filter.
Suction pressure too high:
• Internal high pressure relief valve open; check for
cause and repair.
• Refrigerant charge too high; drain some refrigerant
(see note 1).
Suction pressure too low:
• Refrigerant charge too low; add refrigerant.
• Air circulation on the evaporator unit not sufficient;
check for the cause and repair.
• Expansion device or suction line clogged: check and
repair.
Fan cycling due to its overtemperature protection:
• Fan capacitor faulty; replace.
• Electrical connections loose; check connections.
• Fan bearing seized; check and repair.
• Expansion device clogged or covered with ice; drain
refrigerant (see note 1), evacuate and recharge.
Note 1: Do not release refrigerant to the atmosphere; use
refrigerant recovery equipment.

13.2 - guide for the owner

When installation and tests are completed explain the
Operation and Maintenance Manual to the owner, with
particular attention to the main operating modes of the air
conditioner, such as:
• Turning the unit on and off.
• Control functions.

13.3 - Accessories

description part number
Remote User Interface HMI 00PSG001022800A
Model 30rB
008 012 015
Yes Yes Yes
25