Armstrong World Industries 203, 243, 302, 242, 122 Unit Tear Down, Magic-Pak HW/HWC, Cooling Section

UNIT TEAR DOWN Magic-Pak: HW/HWC

3-4

Cooling Section

Chassis Removal:

The cooling chassis may be removed from behind the filter access door.

Refer to the following directions and Figures 3-1 to 3-4.

To remove the cooling chassis:

1.Disconnect all power to the unit.

2.Shut off and disconnect the gas supply.

3.Remove the filter access door (Figure 3-1).

4.Disconnect L1 and L2 from the compressor contactor (Figure 3-2).

5.Disconnect the 6-pin low voltage molex plug (Figure 3-2).

6.Remove the filler panel by removing the four hold down screws (Figure 3-2).

7.Remove the right side chassis screw (Figure 3-2).

8.Remove the permagum seal on the base rails of the chassis (Figure 3-4).

9.Disconnect the drain tube from the evaporator drain pan (Figure 3-3).

10.Remove the chassis from the front of the unit, pulling it toward yourself (Figure 3-4).

L1/L2 WIRES

RIGHT SIDE

CHASSIS SCREW

HOLD DOWN

SCREWS

FILLER PANEL

6-PIN

LOW VOLTAGE MOLEX PLUG

Figure 3-2

SRM-HW/HWC

8/99