User Manual
Table Of Contents
- Warranty and Return Policy
- RECEIVING THE AIR CONDITIONER
- HANDLING AND TESTING THE AIR CONDITIONER
- HOW TO READ MODEL NUMBERS
- TECHNICAL INFORMATION
- Sequence of Operation
- Heating
- Cooling
- Thermostat
- Remote Access Control (optional)
- Head Pressure Control
- Contactor (115V 12000 BTU/Hr. Units only)
- Contactor (460V Units only)
- Overload (460V Units only)
- Phase Monitor
- 460V to 230V Transformer
- 115V to 10V or 230V to 10V Transformer (optional)
- 115V to 24V or 230V to 24V Transformer and Relay (optional)
- G521216GXXX Generic Schematic (actual unit options may vary)
- G52 All Other Generic 1-Phase Schematic (actual unit options may vary)
- G52 Generic 3-Phase Schematic (actual unit options may vary)
- G521216GXXX Generic Wire Diagram (actual unit options may vary)
- G52 All Other Generic 1-Phase Wire Diagram (actual unit options may vary)
- G52 Generic 3-Phase Wire Diagram (actual unit options may vary)
- INSTALLATION INSTRUCTIONS
- DIMENSIONAL DRAWINGS
- REMOTE ACCESS CONTROL (optional)
- OPERATING PARAMETERS
- ALARM PARAMETERS
- Remote Access Control Pin-out
- Schematic and Wiring Diagram for Remote Access Control
- G52 1-Phase Generic Schematic (actual unit options may vary)
- G52 Generic 3-Phase Schematic (actual unit options may vary)
- G52 Generic Wire Diagram for Remote Access Control (actual unit options may vary)
- G52 Generic 3-Phase Wire Diagram for Remote Access Control (actual unit options may vary)
- DIMENSIONAL DRAWINGS
- INSTALLATION INSTRUCTIONS WITH REMOTE ACCESS CONTROL
- MAINTENANCE
- Refrigerant Properties Chart (R 134a)
- Functional Data
- 8000 BTU/Hr. Unit Characteristics
- 12000 BTU/Hr. Unit Characteristics
- SERVICE DATA
- Components List
- TROUBLE SHOOTING
© 2018 nVent
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CONDENSER AND EVAPORATOR AIR MOVERS
Impeller motors require no maintenance. All bearings, shafts, etc. are lubricated during manufacturing for the life
of the motor.
If one of the condenser impeller motors (ambient impellers) should fail, it is not necessary to remove the air
conditioner from the cabinet or enclosure to replace the blower. The condenser blower is mounted on its own
bulkhead and is easily accessible by removing the front cover.
Operation of the air conditioner in areas containing airborne
caustics or chemicals can rapidly deteriorate lters, condenser
coils, blowers and motors, etc. Contact nVent Equipment
Protection for special recommendations.
CAUTION
REFRIGERANT LOSS
Each air conditioner is thoroughly tested prior to leaving the factory to insure against refrigeration leaks. Shipping
damage or microscopic leaks not found with sensitive electronic refrigerant leak detection equipment during
manufacture may require repair or recharging of the system. This work should only be performed by qualied
professionals, generally available through a local, reputable air conditioning repair or service company.
Should the refrigerant charge be lost, access ports on the suction and discharge sides of the compressor are
provided for recharging and/or checking suction and discharge pressures.
Refer to the data on the nameplate which species the type of refrigerant and the charge size in ounces.
Before recharging, make sure there are no leaks and that the system has been properly evacuated into a deep
vacuum.