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General| Brand | Hitachi |
|---|---|
| Model | RPK-1.5FSN3M |
| Category | Air Conditioner |
| Language | English |
Important safety instructions regarding electrical shock, unit handling, fire safety, and general precautions.
Information on pressure vessel safety, high pressure switch, and potential hazards related to modifications.
Instructions on the correct method for lifting units using slings, emphasizing base lifting and avoiding metal cables.
Key considerations for outdoor unit placement, including shading, ventilation, noise, access, and environmental factors.
Requirements for outdoor unit foundations, including height, drainage, material, and strength to support the unit's weight.
Guidelines for selecting correct refrigerant pipe sizes based on system type, outdoor unit, and connection kits.
Instructions for selecting pipe sizes between outdoor and indoor units, emphasizing adherence to manual specifications.
General guidelines for installing refrigerant pipes, including material, diameter, flaring, and insulation requirements to ensure proper system performance.
Procedure for calculating additional refrigerant charge based on piping length, diameter, indoor units, and capacity ratios.
Instructions for charging additional refrigerant, including safety precautions for stop valves and the correct procedure for charging.
Critical safety information regarding refrigerant leaks, maximum permissible concentrations, and calculation of concentration levels.
Diagrams and instructions for connecting power supply sources to outdoor and indoor units for both heat pump and heat recovery systems.
Instructions for connecting electrical wiring to the outdoor unit's terminal board, including power supply and transmission wires.
Guide for connecting indoor units to outdoor units and CH units, including communication cables and safety precautions.
Essential checks to perform before the test run, including refrigerant pipes, communication cables, settings, and insulation resistance.
Procedure for conducting the test run, including checking stop valves, sequences, and general operation.
A comprehensive checklist for verifying system operation during the test run, covering fan rotation, noise, temperatures, pressures, voltages, and safety devices.
A table of common alarm codes, their categories, content of abnormality, and possible causes for the outdoor and indoor units.
Details on compressor protection mechanisms, including pressure switches, oil heaters, and fuse capacities for various models.
Guidance on identifying and resolving common operational faults, distinguishing between normal sounds and actual faults.
