Daikin IOM 1062, Installation, Operation And Maintanance Manual

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IOM 1062 Direct Drive Fluid Coolers 15
Electrical Data
Electrical Wiring
The electrical installation should be in accordance with National Electrical Code, local
codes and regulations. Wiring diagrams shown are only basic and do not show fuses,
additional disconnect switches, etc., which must be provided in the field.
Units have a disconnect switch, mounted in the electrical box, with a through-the-door
handle.
All standard motors have internal inherent overload protectors. Therefore, contactors can
be used instead of starters requiring thermal protectors, eliminating the problem of
furnishing the proper heating elements.
All fluid coolers are furnished with either single-phase or three-phase fan motors which, are
identified by the unit data plate.
Electrical leads from each motor terminate at the unit junction box. Field connections must
be made from these leads in accordance with local, state and national codes.
Three-phase motors must be connected to three-phase power of voltage to agree with motor
and unit dataplate.
The motors are wired into a common junction box. The motors must be checked for proper
rotation. Be sure to check that motor voltage and control connection agree with electric
services furnished.