Fedders CH18ABD1 warranty Installation, Condensing Unit Location, Electrical Connections, 114

INSTALLATION

Condensing Unit Location

The condensing unit should be located outdoors as close as possible to the evaporator. Consider the following factors:

Clearances

The air inlet should be located at least 12" from a wall or other obstruction for unrestricted air flow.

The air outlet should be located so as to direct discharged air away from the building. Three feet of clearance around the unit and a minimum of six feet clearance above the unit is required to avoid recirculation of condenser discharge air on vertical discharge models. Avoid locating unit under low overhanging roofs.

Support

Mount the unit on a sturdy base approximately four to six inches above the ground. In areas known for snow accumulation, the unit should be elevated at least 18" above the ground. A concrete slab is recommended. Concrete slab should not contact the building foundation to prevent possible sound or vibration transmission.

Rooftop installation is acceptable in areas of low snow accumulations, provided the roof will support the unit and provisions are made for water drainage and the noise or vibration through the structure.

Exposure

If practical, unit should be located on the south side of the structure away from northerly winds to minimize the effects of blowing snowdrifts and freezing rain. A wind screen or wind block can also be used.

Placement of the unit should be in a well-drained area, or the unit must be supported high enough so run-off will not enter the unit.

Avoid installations under roof overhangs without guttering. Water draining from the roof onto the unit could produce excessive noise and may cause ice to build up on the coil or fan during cold weather.

Locate unit away from windows, patios, decks, etc. where unit operation sound may disturb customer.

Do not locate where heat, lint or exhaust fumes will be discharged on the unit (as from dryer or furnace vent).

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Rain Gutters
	Six feet
	clearance
	above the
	unit
Three feet	Three feet
clearance
	clearance
Concrete slab

Proximity to Evaporator

Locating the condenser as close as possible to the evaporator will increase the system capacities by reducing the line set refrigerant pressure drop, and will make the system less susceptible to liquid migrations due to less refrigerant charge.

Electrical Connections

WARNING

BEFORE PERFORMING ANY WORK ON THIS EQUIPMENT, POWER SUPPLY MUST BE TURNED OFF AT THE HOUSEHOLD SERVICE BOX TO AVOID THE POSSIBILITY OF SHOCK, INJURY, DEATH OR DAMAGE TO EQUIPMENT.

WARNING

ELECTRICAL EQUIPMENT SHOULD BE INSTALLED BY A QUALIFIED, LICENSED ELECTRICIAN. IMPROPER ELECTRICAL HOOK-UP MAY DAMAGE EQUIPMENT, CAN CREATE A HAZARD, CAUSE PERSONAL INJURY OR DEATH, AND WILL VOID THE WARRANTY.

1.The installer shall check available power to make certain it matches the unit rating plate (located inside control box cover) and that constant voltage can be maintained to the unit. Unsatisfactory performance would otherwise result. The local power company should be contacted regarding any problems or questions concerning power supply.

113Control box cover

Opening for line voltage conduit or cable

Opening for low-voltage wiring

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Wiring diagram and rating plate are located inside control box cover

2.Install a line service disconnect switch within sight of the condensing unit. The line voltage service wiring for the condensing unit should include a fused disconnect switch.

3.Use correct wire size and fuse size. To ensure that adequate voltage will be available at the condensing unit, the line voltage service wiring must be of adequate size. Minimum recommended wire ampacities and maximum fuse sizes are listed on the unit name plate.

4.Two holes are provided in the control box.

a.One is for the connection of the line voltage conduit or cable. The hole is sized for 3/4" conduit.

b.One is for low-voltage wiring. (Refer to the wiring diagram attached to electrical box cover for connection.)

5.Be sure to ground the condensing unit by securing the ground wire to the grounding lug inside the control box.

6.Be sure to follow National Electrical Code and all local codes.

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