Refrigeration and Air Conditioning Controls
Fitters notes
System Trouble Shooting
Fault Location
RE F RI GE RA T I ON A ND A I R CONDI T I ONI NG
Fitters notes System Trouble Shooting - Fault Location
ć Danfoss A/S (RC-CM / MWA), 09 - 2002
Fitters notes System Trouble Shooting - Fault Location
Faults on refrigeration systems, general:
Ae0_0001
Fault location without
the use of instruments:
Ae0_0012
Categorisation:
Ae0_0028
ć Danfoss A/S (RC-CM / MWA), 09 - 2002
Fitters notes System Trouble Shooting - Fault Location
Knowledge of the system is required:
Ae0_0029
Theoretical knowledge is necessary:
Ae0_0033
Ae0_0034
ć Danfoss A/S (RC-CM / MWA), 09 - 2002
Fitters notes System Trouble Shooting - Fault Location
Ae0_0016
ć Danfoss A/S (RC-CM / MWA), 09 - 2002
Fitters notes System Trouble Shooting - Fault Location
Fault location
Visible Faults Effect on System Operation
Air-cooled condenser
Water-cooled condenser
Receiver with sight glass
Receiver stop valve
Liquid line
Filter drier
Risk of:
Sight glass
ć Danfoss A/S (RC-CM / MWA), 09 - 2002
Fitters notes System Trouble Shooting - Fault Location
Visible Faults Effect on System Operation
Thermostatic Expansion Valve
Air cooler
Liquid cooler
ć Danfoss A/S (RC-CM / MWA), 09 - 2002
Fitters notes System Trouble Shooting - Fault Location
Visible Faults Effect on System Operation
Suction line
Regulators in suction line
Compressor
Cold Room
General
ć Danfoss A/S (RC-CM / MWA), 09 - 2002
Fitters notes System Trouble Shooting - Fault Location
Faults that can be Felt Effect on System Operation
Solenoid valve
Filter drier
Faults that can he heard Effect on System Operation
Regulators in suction line
Compressor
Cold room
Faults that can he smelled Effect on System Operation
Cold room
ć Danfoss A/S (RC-CM / MWA), 09 - 2002
Fitters notes System Trouble Shooting - Fault Location
ć Danfoss A/S (RC-CM / MWA), 09 - 2002
Ae0_0019_02
Refrigeration System with Air Cooler and Air-cooled Condenser
Fitters notes System Trouble Shooting - Fault Location
ć Danfoss A/S (RC-CM / MWA), 09 - 2002
Ae0_0030
Refrigeration System with two Air Coolers and Air-cooled Condenser
Fitters notes System Trouble Shooting - Fault Location
ć Danfoss A/S (RC-CM / MWA), 09 - 2002
Ae0_0035_02
Refrigeration System with Liquid Cooler and Water-cooled Condenser
Fitters notes System Trouble Shooting - Fault Location
ć Danfoss A/S (RC-CM / MWA), 09 - 2002
Fitters notes System Trouble Shooting - Fault Location
Symptom Possible cause Remedy
ć Danfoss A/S (RC-CM / MWA), 09 - 2002
Fitters notes System Trouble Shooting - Fault Location
Symptom Possible cause Remedy
ć Danfoss A/S (RC-CM / MWA), 09 - 2002
Fitters notes System Trouble Shooting - Fault Location
Symptom Possible cause Remedy
ć Danfoss A/S (RC-CM / MWA), 09 - 2002
Fitters notes System Trouble Shooting - Fault Location
Symptom Possible cause Remedy
ć Danfoss A/S (RC-CM / MWA), 09 - 2002
Fitters notes System Trouble Shooting - Fault Location
Symptom Possible cause Remedy
ć Danfoss A/S (RC-CM / MWA), 09 - 2002
Fitters notes System Trouble Shooting - Fault Location
Symptom Possible cause Remedy
ć Danfoss A/S (RC-CM / MWA), 09 - 2002
Fitters notes System Trouble Shooting - Fault Location
Symptom Possible cause Remedy
ć Danfoss A/S (RC-CM / MWA), 09 - 2002
Fitters notes System Trouble Shooting - Fault Location
Symptom Possible cause Remedy
ć Danfoss A/S (RC-CM / MWA), 09 - 2002
Fitters notes System Trouble Shooting - Fault Location
Symptom Possible cause Remedy
ć Danfoss A/S (RC-CM / MWA), 09 - 2002
Fitters notes System Trouble Shooting - Fault Location
Symptom Possible cause Remedy
ć Danfoss A/S (RC-CM / MWA), 09 - 2002
The Danfoss product range for the refrigeration
and air conditioning industry:
Compressors for refrigeration and air conditioning
These products include hermetic reciprocating compressors,
scroll compressors and fan-cooled condensing units. Typical
applications are air conditioning units, water chillers and
commercial refrigeration systems.
Compressors and Condensing Units
This part of the range includes hermetic compressors and fan-
cooled condensing units for household refrigerators and
freezers, and for commercial units such as bottle coolers and
drinks dispensers. We also offer compressors for heat pumps,
and 12 and 24 V compressors for refrigerators and freezers in
commercial vehicles and boats.
Appliance controls
For the regulation of refrigeration appliances and freezers
Danfoss supplies a product range of electromechanical
thermostats produced according to customer specifications;
electronic temperature controls comprising models with and
without displays; service thermostats for servicing on all
refrigerating and freezing appliances.
Refrigeration and air conditioning controls
Our full product range covers all control, safety, system
protection and monitoring requirements in mechanically and
electronically controlled refrigeration and air conditioning
systems. The products are used in countless applications
within the commercial and industrial refrigeration and air
conditioning sectors.
Danfoss can accept no responsibility for possible errors in catalogues, brochures and other printed material. Danfoss reserves the right to alter its products without notice. This also applies to
products already on order provided that such alterations can be made without subsequential changes being necessary in specifications already agreed.
All trademarks in this material are property of the respective companies. Danfoss and the Danfoss logotype are trademarks of Danfoss A/S. All rights reserved.
RZ0ZH202 ć Danfoss A/S (RC-CM / MWA), 09 - 2002
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