Carrier 58MEC instruction manual Furnace Air Filter Table, Air Filter Located in Filter Cabinet

58MEC

Table 1 – Furnace Air Filter Table

FURNACE CASING WIDTH	FILTER QUANTITY AND SIZE *			FILTER TYPE
IN (MM)	SIDE RETURN{*	BOTTOM RETURN*		IN (MM)*
	IN (MM)	IN (MM)
17--- 1/2 (445)	(1) 16 x 25 x 3/4 {	(1) 16 x 25 x 3/4		3/4 (19 mm) thick washable
	(406 x 635 x 19) {	(406 x 635 x 19)
21 (533 )	(1) 16 x 25 x 3/4	(1) 20 x 25 x 3/4 {		3/4 (19 mm) thick washable
	(406 x 635 x 19)	(508 x 635 x 19)	{
24--- 1/2 (610)	(1) 16 x 25 x 3/4	(1) 24 x 25 x 3/4 {		3/4 (19 mm) thick washable
	(406 x 635 x 19)	(610 x 635 x 19)	{

Table 2 – Air Filter Located in Filter Cabinet

FILTER CABINET HEIGHT --- IN (MM)	FILTER SIZE --- IN (MM)	FILTER TYPE
	(1) 16 x 25 x 3/4*
16 (406)	(406 x 635 x 19) or	Washable
	(1) 16 x 25 x 4--- 5/16
	(406 x 635 x 110)
	(1) 20 x 25 x 3/4*
20 (508)	(508 x 635 x 19) or	Washable
	(1) 20 x 25 x 4--- 5/16
	(508 x 635 x 110)
	(1) 24 x 25 x 3/4*or
24 (610)	(610 x 635 x 19) or	Washable
	(1) 24 x 25 x 4--- 5/16
	(610 x 635 x 110)

* Filters with a side return-air may have a different filter size. Measure the filter to	NOTE: Blower wheel is fragile. Use care.
obtain the correct size.	7. Clean blower wheel and motor by using a vacuum with soft
{ Factory-provided with furnace.
	brush attachment. Be careful not to disturb balance weights
	(clips) on blower wheel vanes. Do not bend wheel or blades
	as balance will be affected.
	8. If greasy residue is present on blower wheel, remove wheel
	from the blower housing and wash it with an appropriate
	degreaser. To remove wheel:
WASHABLE	a. Mark blower wheel location on shaft before disassembly
	to ensure proper reassembly.
FILTER	b. Loosen setscrew holding blower wheel on motor shaft.

FILTER

SUPPORT

FILTER

RETAINER

WASHABLE FILTER OR

DISPOSABLE MEDIA FILTER

IN FILTER CABINET

A00232

Fig. 3 - Bottom Filter Arrangement

3.Disconnect blower motor wires from furnace control. Field thermostat connections may need to be disconnected de- pending on their length and routing.

4.Remove control box mounting screws and position control box, transformer, and door switch assembly to right side of furnace casing.

5.If condensate trap is located in left- or right-hand side of furnace casing, proceed to item 6, otherwise remove trap and tubing as described below (See Fig. 5):

a.Disconnect field drain connection from condensate trap.

b.Disconnect drain and relief port tubes from condensate trap.

c.Remove condensate trap from blower shelf.

6.Remove screws securing blower assembly to blower shelf and slide blower assembly out of furnace. Detach ground wire and disconnect blower motor harness plugs from blower motor.

NOTE: Mark blower mounting arms and blower housing so each arm is positioned at the same hole location during reassembly.

c.Mark blower wheel orientation and cutoff plate location to ensure proper reassembly.

d.Remove screws securing cutoff plate and remove cutoff plate from housing.

e.Remove bolts holding motor mounts to blower housing and slide motor and mounts out of housing. Disconnect capacitor and ground wire attached to blower housing before removing motor. Motor mounts do not need to be removed from motor.

f.Remove blower wheel from housing.

WASHABLE

FILTER

IN FURNACE

FILTER

RETAINER

WASHABLE FILTER OR

DISPOSABLE MEDIA

FILTER IN FILTER CABINET

A00233

Fig. 4 - Filter Installed for Side Inlet

4