Carrier 58HDV Filters, Addition Of Air Conditioning, Filter Installation using Filter Rack

58HDV

2.Insulate ductwork in indoor unconditioned areas with a minimum of 1″ (25.4mm) insulation with indoor type vapor barrier.

Filters

A filter must be used:

Filters are supplied with these furnaces, and additional filters may be purchased from your distributor.

Use either filter type:

SWashable, high velocity filters are based on a maximum air flow rating of 600 FPM.

SDisposable, low velocity filters are based on a maximum air flow of 300 FPM when used with filter grille.

SSee Service & Maintenance Manual, Circulation Air Blower Data for additional data.

NOTE: Disposable, low velocity filters may be replaced with washable, high velocity filter providing they meet the minimum size areas. Washable, high velocity filters can be replaced ONLY with same type and size.

11/2″

(38.1)

3″(76.2)

	11/4″ (31.8)
26 Ga. Galvanized Steel	11/16″ (27)
FAST part number 1008482

A07730

Fig. 45 - Filter Clip Construction

Refer to Fig. 46 and for guidelines to install filters. Furnaces which require larger filter media and have limited clearances on one side of furnace, require a standoff filter rack, see Fig. 46, available from your distributor.

NOTE: If filters are only suitable for heating application, advise homeowner that filter size may need to be increased if air conditioning is added.

Using Optional

Standoff Filter

Rack

A07729

Fig. 43 - Side Mounted Filter Rack

Filter Installation using Filter Rack

When installing or removing a bottom mounted filter, slide the two side filter clips to the back of the furnace BEFORE installing or removing. This will allow the filter to clear the front raised edge of the furnace. Insert filter into side clips first and push filter back until it is fully engaged into back clip. When filter is in place, slide clips back into place midway on filter as shown in Fig. 44 or Fig. 45

Center Clip side--to--side

9″ (152.4mm)
	25--24--18--1

Slide filter clips towards back before removing

A07691

Fig. 44 - Bottom Mounted Filter Rack

A07731

Fig. 46 - Standoff Filter Rack

Addition Of Air Conditioning

When a refrigeration coil is used in conjunction with this unit, it must be installed parallel with or on the discharge side of the unit to avoid condensation on the heat exchanger. All furnaces are designed with a break-away duct flange on the supply air side of the furnace. This allows for installation in the horizontal right or downflow applications. The coil installation instructions must be consulted for proper coil location and installation procedures. With a parallel flow arrangement, dampers must be installed to prevent chilled air from entering the furnace. If manually operated dampers are used, they must be equipped with a means to prevent operation of either unit unless the damper is in full heat or full cool position.

A 3″ clearance is required on the right side of the furnace in order to run the condensate drain line. Copper or plastic tubing may be used for the condensate drain line.

Downflow Furnace Installation Non- Combustible Floor Installation

Fabricate a plenum to the dimensions given in Fig. 47, for the furnace outlet. Plenum should be flanged, approximately 3/4″ (19.1mm) for support.

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