920-007-12

WallMaster chassis installation instructions for WS, WE and WY models (WSC-B sleeve)

These instructions are provided for installation of WallMaster air conditioner chassis models into thru-the-wall sleeves. This chassis has been UL approved with the sleeve listed on the serial nameplate of this chassis. Important warranty information is provided on pages 17 and 18. Keep these instructions in a convenient location for any warranty service that may be required.

STEP 1 Check the sleeve to be certain it has been correctly installed in the wall. Remove the corrugated front panel on the WSC SLEEVE. Remove the rear WEATHER PANEL. Place lower edge into sleeve tab (Friedrich logo facing out). Align slots with screw holes. Secure grille with screws.

A.Check the anchor screws. There should be four

(4) in the WSC SLEEVE (two in each side).

B.Determine if the sleeve has a downward slope, to the outside, of ½ bubble on a level. See page 10 for further details.

C.Check to be sure the sleeve has been sealed around all edges with an industrial type caulking on both the outside and inside to prevent rain entry.

STEP 2 Check the electrical receptacle to see that it conforms to the requirements for the chassis model to be installed. See pages 2 and 5, for the receptacle requirements.

STEP 3 The decorative front is packaged in a separate box inside the chassis shipping carton, between the chassis and the carton. Remove this box and set the box aside until later.

STEP 4 With the help of an assistant, remove the chassis from the shipping carton. Be careful not to allow anything to impact against the hairpins as this may result in damage to them. With the help of an assistant, lift the chassis by the basepan and slide it into the sleeve until it contacts the rear grille. With the chassis in proper position, the front edge of the basepan must extend out 4 ¾ inches from the front (side) edge of sleeve.

Figure 11

Rear weather panel

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