Control Sox

TM 5-4120-274-15

b. Inspection. Inspect for cracked or broken

switch. Automatic control of both the heasting and

case.

cooling cycle is provided by the thermostat. The

c. Testing. Test for continuity across protector.

hi-lo fan speed switch controls the fan speed. The

Refer to wiring diagram figure 1-5 to establish

control box may be used in a remote position by

points for continuity.

utilizing a blockoff plate and a remote control

d. lnstallation. Refer to figure 3-11 and install

cable, figure 2-1 and 2-1.

diode surge protector.

b. Inspection. Inspect for loose knobs and

switches.

3-28. Control Sox

a. General. The control box hoses the selec-

3-29. Selector Switch

tor switch, thermostat, and hi-lo fan speed switch

and is mounted on the junction box. The selector

a. Removal. Refer to figure 2-1 and remove

switch is a manually operated, five+position

selector switch.

Figure 3-10. Models CV-9-1-15-60 and CV-9-1-30-60, heating element, expansion

valve, fan motor relay, equalizer solenoid valve, presure regulating valve, removal

and installation

3-13