Carrier 48HJ004-014 Routine Maintenance And Care, For The Equipment Owner, 48HJ008-014Shown

ROUTINE MAINTENANCE AND CARE

FOR THE EQUIPMENT OWNER

Consider the following information before maintaining or servicing equipment:

1.TURN OFF GAS SUPPLY AND THEN ELECTRI- CAL POWER TO YOUR UNIT AND INSTALL LOCKOUT TAG BEFORE SERVICING OR PER- FORMING MAINTENANCE.

2.Do not turn off electrical power to this unit without first turning off the gas supply.

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

4.Failure to follow these instructions could result in serious injury or death.

Air Filter(s) — Air filter(s) should be checked at least every 3 or 4 weeks and changed or cleaned when necessary. Table 1 indicates the correct filter size for your unit. See Fig. 4 for filter access panel location.

1.Lift up and remove filter access panel.

2.While holding filter, tilt upper filter rack.

3.Remove filters by pulling up and out toward you from the track.

4.Inspect or replace filters.

5.Return filters t filter tracks. Note direction of airflow ar- rows on filter frame.

6.Reinstall filter access panel.

If you have difficulty in locating your air filter or if you have questions concerning proper filter maintenance, contact your dealer for instructions. When replacing your unit filters, always use the same size and type of filter that was originally supplied by the installer.

Units with outdoor air capability have a cleanable filter for the outdoor air. This filter should be checked semi-annually and cleaned as necessary with steam or hot water and a mild detergent. Do not use throwaway filters in place of cleanable filters.

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Never operate your unit without filters in place. Failure to heed this warning may result in damage to the blower motor, compressor and/or evaporator coil. An accumula- tion of dust and lint on internal parts of your unit can cause loss of efficiency and, in some cases, fire that could result in serious injury or death.

Table 1 — Indoor-Air Filter Data for 48HJ

UNIT SIZE	INDOOR-AIR FILTERS
	(Throwaway Fiberglass)
48HJ
	Quantity	Size (in.)
004-007	2	16 x 25 x 2
008,009	4	16 x 25 x 2
012,014	4	20 x 20 x 2

NOTE: Replacement filters should be UL (Underwriters’ Laborato- ries) certified or equivalent.

FILTER ACCESS PANEL

Fig. 4 — Typical Filter Access Panel Location

(48HJ008-014 Shown)

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