York W)036 THRU 060 Specifications download pdf (Page 13)

542300-YIM-A-1009

Johnson Controls Unitary Products 13

Figure 12: Compressor Restraining Bracket

Filters

One or two-inch filters can be supplied with each unit. One-inch

filters may be used with no modification to the filter racks. Filters

must always be installed ahead of evaporator coil and must be

kept clean or replaced with same size and type. Dirty filters

reduce the capacity of the unit and result in frosted coils or

safety shutdown. Refer to physical data tables, for the number

and size of filters needed for the unit. The unit should not be

operated without filters properly installed.

Power And Control Wiring

Field wiring to the unit, fuses, and disconnects must conform to

provisions of National Electrical Code (NEC), ANSI/NFPA No.

70 – Latest Edition (in U.S.A.), current Canadian Electrical

Code C221, and/or local ordinances. The unit must be

electrically grounded in accordance with NEC and CEC as

specified above and/or local codes.

Voltage tolerances which must be maintained at the

compressor terminals during starting and running conditions are

indicated on the unit Rating Plate and Table 1.

The internal wiring harnesses furnished with this unit are an

integral part of the design certified unit. Field alteration to

comply with electrical codes should not be required. If any of

the wire supplied with the unit must be replaced, replacement

wire must be of the type shown on the wiring diagram and the

same minimum gauge as the replaced wire.

A disconnect must be utilized for these units. Factory installed

disconnects are available. If installing a disconnect (field

supplied or York International

supplied accessory), refer to

Figure 8 for the recommended mounting location.

NOTE: Since not all local codes allow the mounting of a

disconnect on the unit, please confirm compliance with

local code before mounting a disconnect on the unit.

Electrical line must be sized properly to carry the load. USE

COPPER CONDUCTORS ONLY. Each unit must be wired with

a separate branch circuit fed directly from the meter panel and

properly fused.

Refer to Figure 13 for typical field wiring and to the appropriate

unit wiring diagram mounted inside control doors for control

circuit and power wiring information.

Do not loosen compressor mounting bolts.

Make sure that panel latches are properly positioned on

the unit to maintain an airtight seal.

Wire tie

(cut and remove)

Mounting bracket

top (remove)

Mounting bracket

base

Remove these

screws (2)

Compressor

208/230-3-60 and 380/415-3-50 units control

transformers are factory wired for 230v and 415v power

supply respectively. Change tap on transformer for 208-

3-60 or 380-3-50 operation. See unit wiring diagram.

Avoid damage to internal components if drilling holes for

disconnect mounting.

When connecting electrical power and control wiring to

the unit, water-proof connectors must be used so that

water or moisture cannot be drawn into the unit during

normal operation. The above water-proofing conditions

will also apply when installing a field supplied disconnect

switch.

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York W)036 THRU 060 Specifications Page 13

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