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General| Series | J4AC4 |
|---|---|
| Cooling Capacity | 18, 000 - 60, 000 BTU/h |
| Refrigerant | R-410A |
| Voltage | 208/230 V |
| Phase | 1 |
| Type | Split System |
Defines warning symbols and keywords used in the manual.
Provides general safety precautions and notes for installation.
Warning about electrical hazards and safety procedures.
Information on R-410A refrigerant oil and handling precautions.
Caution regarding hot surfaces on the unit.
Precaution about handling refrigerant under pressure.
Importance of proper grounding for electrical safety.
Warning about handling service valves and refrigerant release.
Requirement for proper brazing techniques and materials.
Provides dimensions for various unit models.
Warning about high current leakage and grounding.
Precautions for units in cold climates regarding snow and ice.
Specifies clearance and placement restrictions for the outdoor unit.
Steps for checking unit condition and preparing for installation.
Guidelines for installing the unit on a support pad.
Table of service valve connection sizes for different models.
Table of recommended refrigerant line sizes for models.
Limits and requirements for refrigerant piping.
Instructions for insulating refrigerant lines.
Precautions for reusing existing refrigerant lines.
Precautions to prevent noise transmission and ensure proper routing.
Step-by-step instructions for brazing refrigerant lines.
Procedure for checking refrigerant lines for leaks.
Steps for evacuating refrigerant lines and the indoor coil.
Instructions on how to safely open service valves.
Table showing maximum low voltage wire lengths based on gauge.
Diagrams for low voltage wiring connections to thermostats.
Warning about live electrical components and power supply requirements.
Requirement for installing a disconnect switch.
Grounding requirements for the outdoor unit.
Steps for starting up the system after installation.
Method for charging the system by weight.
Procedure for calculating total system charge for repairs.
Method for charging using liquid line pressure in cooling mode.
Conditions for CCH operation in heat pump systems.
Operation of the reversing valve in heat pump mode.
Protection functions for the heat pump system.
Protection functions specific to air conditioner mode.
Procedures and conditions for defrost mode in heat pumps.
Table listing system faults and checks.
General maintenance procedures for coils and motors.
Steps for replacing a motor.
Wiring diagram for air conditioning systems.
Wiring diagram for 18-48K HP systems.
Wiring diagram for 60K HP systems.
Table for matching condensing units with air handlers.
Procedures for checking system operation and performance after installation.
