Trane SCXG-SVX01B-EN manual ServiceAccess, pre-installation Installation considerations

pre-installation

Installation considerations

ServiceAccess

￿WARNING

HazardousVoltage w/Capacitors!

Disconnect all electric power, including remote disconnects before servicing. Follow proper lockout/tagout proce- dures to ensure the power cannot be inadvertently energized. For variable frequency drives or other energy storing components provided byTrane or others, refer to the appropriate manufacturer’s literature for allowable waiting periods for discharge of capacitors.Verify with an appropriate voltmeter that all capacitors have discharged. Failure to disconnect power and discharge capacitors before servicing could result in death or serious injury.

Variable Frequency Drives are shipped separately and field installed. See page 29 forVFD related dimensions and weights.

96” (2132 mm)

TopView

CCRC/CIRC 20, 29, 32

48” (1066 mm)

96” (2132 mm)

48” (1066 mm)

Control

Panel

Note: For additional information regard- ing the safe discharge of capacitors, see PROD-SVB06A-EN or PROD-SVB06A-FR.

See Figure I-PC-2 andTable I-PC-1 for recommended service and code clearances. Access to thermostat unit controls is through a hinged access panel door on the front, lower left of the unit’s compressor section.

IntelliPak unit controls access is through a panel on the middle right of the fan section. The panel is secured with an automatic latch and quick-acting fasten- ers, which require a screwdriver to open.

Removable front unit panels provide access to compressors, fan, motor, inlet guide-vane actuator, and belts.

Table I-PC-1. Service and code clearance requirements

Side	Distance	Purpose
front	42 in. (20-38 tons)	NEC code requirement
left	18 in.	air-cooled units only
	36 in.	refrigeration & waterside component service
	77 in.	fan shaft removal
right	36 in.	provides uniform airflow
inlet	18 in.	provides uniform airflow

air inlet 18” minimum

Removable left side panels give access to drive side, fan bearing, inlet guide-vanes, condensers, and waterside economizer control valve.The compressor, con- denser and fan motor access panels are secured with quick-acting fasteners. Access panels for evaporator coils, expansion and water valves, and left fan bearing are sheet metal screws. Access to other components for service requires removal of panels secured with sheet metal screws. During operation, sight glasses are viewable through portholes on the upper right side panel of the fan

See table

42” minimum

36”minimum

Control

Panel

section.

Figure I-PC-2.Top view of self-contained unit showing recommended service and code clear- ances

SCXG-SVX01B-EN 13