Carrier manual Note To Installer, Unit 50SD, Single-Packaged Electric Cooling Units

50SD

Single-Packaged Electric Cooling Units

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A Guide To Operating and Maintaining Your

Single-Package Electric Cooling Unit

NOTE TO INSTALLER

This manual must be left with the equipment owner.

Note to User: Please read all manuals and retain manuals for future reference.

FOR YOUR SAFETY

Do not store or use gasoline or other flammable vapors and liquids in the vicinity of this or any other appliance.

!WARNING

FIRE, EXPLOSION, ELECTRICAL SHOCK HAZARD

Failure to follow this warning could result in personal injury, death or property damage.

Do not use this unit if any part has been under water. Immediately call a qualified service technician to inspect the unit and to replace any part of the control system which has been under water.

!WARNING

ELECTRICAL SHOCK HAZARD

Failure to follow this warning could result in personal injury, death.

Before performing recommended maintenance, be sure the main power switch to unit is turned off.

TO START UNIT

Step 1—Turn on the electrical power supply to unit.

Step 2—Select temperature and set system switch to desired mode.

TO SHUT UNIT OFF

If unit is being shut down because of a malfunction, call your dealer as soon as possible.

Step 1—Set temperature switch to OFF.

Step 2—Turn off the electrical power supply to unit.

ROUTINE MAINTENANCE

All routine maintenance should be handled by skilled, experienced personnel. Your dealer can help you establish a standard procedure.

For your safety, keep the unit area clear and free of combustible materials, gasoline, and other flammable liquids and vapors.

To assure proper functioning of the unit, flow of condenser air must not be obstructed from reaching the unit. Clearance from the top of the unit is 48 in. Clearance of at least 36 in. is required on sides except the power entry side (42 in. clearance) and the duct side (12 in. minimum clearance).

Fig. 1—Unit 50SD

MAINTENANCE AND CARE FOR THE

EQUIPMENT OWNER

Before proceeding with those things you might want to maintain yourself, please carefully consider the following:

!WARNING

ELECTRICAL SHOCK AND CUT HAZARD

Failure to follow this warning could result in personal in- jury, death or property damage.

1.TURN OFF ELECTRICAL POWER TO YOUR UNIT BEFORE SERVICING OR PERFORMING MAINTE- NANCE.

2.When removing access panels or performing mainte- nance functions inside your unit, be aware of sharp sheet metal parts and screws. Although special care is taken to reduce sharp edges to a minimum, be extremely careful when handling parts or reaching into the unit.

AIR FILTERS— Air filter(s) should be checked at least every 3 or 4 weeks and changed or cleaned whenever it becomes dirty. Dirty filters produce excessive stress on the blower motor and can cause the motor to overheat and shut down. Table 1 indicates the correct filter size for your unit. Refer to Fig 2 to access the filter(s).

To replace or inspect filter(s) (or accessory filter rack when supplied):

1. Remove the filter access panel using a 5/16-in. nut driver.