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NetworkAIR FM DX 60 Hz Operation, Maintenance, and Troubleshooting12
Electrical Inspection Checklist
Electrical Hazard: All electrical wiring must comply with national and local codes.
The equipment must be grounded to an earth ground (do not use a water-pipe ground).
Three-phase electrical service is required.
Mechanical and Refrigeration Inspection Checklist
Ensure that:
Incoming voltages match the phase and voltage listing on the nameplate.
The equipment is properly grounded.
Internal electrical components and terminal blocks do not have any loose connections.
Electrical connections are tight, including: contactors, terminal blocks, circuit breakers, controllers,
switches, relays, auxiliary devices, and field connections.
Circuit breakers are correct and securely attached to the DIN rail.
Interconnecting control wiring from the equipment to the outdoor heat exchanger/pump is correct.
Ensure that:
Condenser fans and blowers are turning freely and that the blades are not distorted or bent.
Condensate drain line is at least the size of the drain connection.
Condensate drain line is pitched (10 mm/m, 1/8 in/foot minimum) and properly trapped (100-130 mm,
4-5 in).
Humidifier water-supply piping is connected and is the correct size.
Mechanical connections are tight, including compressor roto-lock connections and the receiver roto-lock
connections. Also check that the humidifier cylinders are seated on the fill/drain block.