Amana PGB58B, PGC(24-60)B Filter Access Door, Filters, Filter Installation

Duct systems and register sizes must be properly de- signed for the C.F.M. and external static pressure rating of the unit. Ductwork should be designed in accordance with the recommended methods of Air Conditioning Con- tractors of America Manual D (Residential) or Manual Q (Commercial). All ductwork exposed to the outdoors must include a weatherproof barrier and adequate insulation.

A duct system should be installed in accordance with Standards of the National Board of Fire Underwriters for the Installation of Air Conditioning, Warm Air Heating and Ventilating Systems, pamphlets No. 90A and 90B.

The warm air supply duct from the unit through a wall fabricated of combustible material may be installed with- out clearance. However, minimum clearances for the unit must be observed as shown in Section III.

It is recommended that the outlet duct be provided with an access panel. This access should be large enough to inspect the air chamber downstream from the heat exchanger for any smoke or combustion gas leaks. A cover should be tightly attached to prevent air leaks.

For horizontal airflow, duct flange dimensions on the unit are shown in Section III.

For vertical airflow, the ductwork should be attached to the roof curb prior to installing the unit. Ductwork dimen- sions are shown in the Amana PRC roof curb installa- tion manual.

If desired, supply and return duct connections to the unit may be made with flexible connections to reduce pos- sible noise transmission.

Filters

WARNING

Important: If you will be using the Over/Under Transition Kit, (PDTROU3A or PDTROU5A) you cannot use the unit filter rack.

If you are using the Over/Under transition kit or are sim- ply choosing not to use this filter rack, the filter(s) may be located in the return air duct(s) or return air filter grille(s). Filters installed external to the unit should be sized in accordance with their manufacturer recommen- dations. If you choose to use a throwaway filter it should be sized for a maximum face velocity of 300 feet per minute.

Important: The PGC 42 and 48 package units contain an evaporator drip pan installed on the return air side of the indoor coil.

If an economizer is to be installed on these units, the drip pan must be removed. The pan can be removed by cutting it away. It will not be needed when an econo- mizer is installed.

If filters are to be installed on these units, they must be from filter kit PFK5B1 or PFK5B6. The filters in these kits are sized to fit with the drip pan in place.

Filter Installation

Important: When installing a filter, always make certain the air flow arrows on the filter point toward the indoor blower.

To install a filter in the filter rack, proceed as follows:

1.Disconnect power to the unit.

2.Locate the filter access door above the return air opening. See Figure 9.

Filter Access Door

Never operate furnace without a filter in- stalled as dust and lint will build up on internal parts resulting in loss of effi- ciency, equipment damage, and possible fire.

A return air filter is not supplied with this unit; however, there must be a means of filtering all of the return air. For your convenience, this unit contains a factory in- stalled filter rack. If you choose to install the return air filter in the unit filter rack, use the appropriate Amana filter kit or a permanent filter that is properly sized as follows:

Model	Amana Kit #	Required Permanent
		Filter Size
PGC24, 30, or 36	PFK3A1 or	26" x 20" x 1"
	PFK3A6
PGC42, 48, 60	PFK5B1 or	32-5/8" x 22-3/8" x 1"
or PGB58	PFK5B6

The Amana filter kit includes a permanent filter, door label, and installation instructions. PFK3A1 and PFK5B1 contain filter, label, and instructions for one unit. PFK3A6 and PFK5B6 contain filters, labels, and instructions for six units.

Figure 9

Filter Access Door

3.Remove the four 5/16" sheet metal screws and set the filter access door aside.

4.Insert the filter into the filter rack channels and lower into place. Make sure the filter slides completely to the bottom so no part of the filter remains outside the back panel.

5.Return the filter access door to its original position and secure it with the four sheet metal screws.

6. a. If you are using an Amana filter kit, affix the FIL- TER ACCESS label to the filter access door.

b. If you are NOT using an Amana filter kit, clearly mark the filter access door “FILTER ACCESS”.

7. Reconnect the power.

NOTE: A clean permanent filter installed as described above will have a negligible effect on air flow.

15