Trane WCY042G1, WCY048G1, WCY036G1, WCY030G1, WCY060G1 manual Filter Installation, Electrical Wiring

FILTER INSTALLATION

TABLE 1

AIR FILTERS

Filters are to be used with the WCY024-060Gheating/cooling units. The basic unit does not have filters in it. However, a filter frame accessory is offered that will allow filters to be installed within the unit.

Otherwise a filter rack must be installed by the installer in the duct work.

Affix the filter label supplied with the unit adjacent to the filter area.

UNIT	NOMINAL	FILTER*	FILTER
	CFM	(Sq Ft) SIZE	RESISTANCE
WCY024G	800	2.67	0.05
WCY030G	1000	3.33	0.05
WCY036G	1200	4.00	0.05
WCY042G	1400	4.67	0.05
WCY048G	1600	5.33	0.05
WCY060G	2000	6.67	0.05

*Filters must be installed in the return air system. The above square footages are based on 300 F.P.M. face velocity. If permanent filters are used, size per mfg. recommendation with clear resistance of 0.05"WC.

ELECTRICAL WIRING

ELECTRICAL CONNECTIONS

Electrical wiring and grounding must be installed in accordance with local codes or, in the absence of local codes, with the National Electrical Code ANSI/NFPA 70, Latest Revision.

ELECTRICAL POWER

It is important that proper electrical power be available for the unit. Voltage variation should remain within the limits stamped on the unit nameplate.

DISCONNECT SWITCH

Provide an approved weather-proof disconnect either on the side of the unit or within close proximity and within sight of the unit.

OVER CURRENT PROTECTION

The branch circuit feeding the unit must be protected as shown on the unit rating plate.

POWER WIRING

The power supply lines must be run in weathertight conduit to the disconnect and into the bottom of the unit control box. Provide strain relief for all conduit with suitable connectors.

Provide flexible conduit supports whenever vibration transmission may cause a noise problem within the building structure.

Be sure all connections are made tight. See Figure 14.

NOTES: For branch circuit wiring (main power supply to unit disconnect), wire size for the length of run should be determined using the circuit ampacity found on the unit nameplate and the N.E.C.

For more than 3 conductors in a raceway or cable, see the N.E.C. for derating the ampacity of each conductor.

GROUNDING: THE UNIT MUST BE ELECTRICALLY GROUNDED IN ACCORDANCE WITH LOCAL CODES OR THE NATIONAL ELECTRIC CODE.

NOTE: Ground the unit internally as provided. See wiring diagram for location.

CONTROL WIRING (CLASS II)

Low voltage control wiring should not be run in conduit with power wiring unless Class 1 wire of proper voltage rating is used. Route the thermostat cable or equivalent single leads of No. 18 AWG colored wire from the thermostat subbase terminals through the rubber gromment on the unit. See Figure 5 for the control entry location. Make connections as shown on the unit wiring diagram and in Figure 14.

Do not short thermostat wires since this will damage the control transformer.

Recommended wire sizes and lengths for installing the unit thermo- stat are provided in Table 2. The total resistance of these low voltage wires must not exceed one (1) ohm. Any resistance in excess of 1 ohm may cause the control to malfunction because of the excessive voltage drop

TABLE 2

THERMOSTAT WIRE SIZE AND MAXIMUM LENGTH

WIRE SIZE	MAXIMUM LENTGH (Ft)
18	75
16	125
14	200

THERMOSTAT HEAT ANTICIPATOR

The thermostat heat anticipators should be set to equal the amper- age draw of the W1 thermostat circuit.

IMPORTANT: Upon completion of wiring check all electrical connections, including factory wiring within the unit. Make sure all connections are tight. Replace and secure all electrical box covers and access doors before leaving the unit or turning on the power to the unit.

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