Lennox International Inc PWGI8E7.2, PWC24E9.2, PWC302, PWC24E14.7, PWC24E4.8, PWC18E9.2 Freezing

Part No. 30790F089 Date 6-1-89

Supersedes 30790G082Page_of12

INSTALLATION

Before sliding unit into sleeve, remove 5 screws and washers from top panel. Slide unit into sleeve until the

angle on top of the unit lines up with the top flange of the sleeve, and should almost touch. Fasten unit to sleeve with the 5 screws and washers above.

Condensate and Defrost Drain

The condensate drain trap furnished with the unit is a copper tube assembly and is furnished with three pieces of plastic tubing.

To install condensate drain (Reference Figure 2.), connect one of the plastic tube ends over the 5/8" O.D. fitting welded to the center of indoor condensate drain pan and another end to.the 5/8" O.D. fitting on the chassis base. Connect the third plastic tube end to the open drain trap,

The drain line should pitch gradually downward at least 1 inch per foot of horizontal run to open drain trap. Be certain that plastic drain tube has free drainage and Is not cdmpad or flattened at any bend. Test drainage by pouring water into drain pan under indoor coil and see that It Is removed rapidly through the drain tubing. The plastic drain connection Is provided so that tt may be disconnected from the permanent drain tubing in the building without unsoldering tn the event It becomes nceccesaary to remove the refrigeration drawer assembly. TOTAL DEFROST DRAIN SYSTEM MUST BE LOCATED IN THE CONDITIONED AREA TO AVOID

FREEZING.

FIGURE 2.

Drain line must not be above lowest drain

pan fitting.

Indoor coil Drain pan

i,ii_ II •

Chassis base

I

I

r-w

Retum air duct (if used)

One 5/8" O.D. copper trap & plastic tubes (3) (furnished)

Alternate

route through return air duct.

/

Use hole provided on either side of base to exit unit.

5/8" rain. O.D. copper or alum. drain tube (shaded Item.

Pitch 1 In. per ft.

Installer supplied)

Open drain trap in conditioned

space to prevent freezing and

damage.