Figure 1-3. Base plan.

be equipped with either a Bendix-Westinghouse or

Whirlpool compressor. If the unit has a Whirlpool

compressor, it will have a phase sequence relay.

The Bendix-Westinghouse compressor has a

crankcase heater and thermostat.

b. Model CE20VAL4 air conditioners in the fol-

lowing serial number range 259827 through

259944, 264148 through 264189, 280747 and

280748, 280754 through 280765, 292448 through

292452, 298409 and 298410, 298420 through

298480, 303133 through 303157, 308223, 308225

through 308232, 410653 through 410724, 413831

through 413867 have a surge suppressor, rectifier,

and circuit breaker but have no high pressure

cutout switch, fuses, or the new air foil evaporator

and condenser fans. Model CE20VAL4 air condi-

tioners in the following serial number range

450442 through 404510 have a solid state rectifier,

two 5 amp fuses, high pressure cutout switch, air

foil evaporator and condenser fans, Whirlpool

compressor and Welco fan motor. They do not

have a surge suppressor.

Figure 1-3. Base plan.

c. Model CE20VAL6 air conditioners in the fol-

lowing serial number range 283755 through

Figure 1-4 x . Practical wiring diagram.

283764, 292428 through 292437, 292439 through

292445, 292447, 303326 through 303329, 303331

Located in back of manual

through 303337, 303341 and 303342, 315122 and

315124, 303344 have a surge suppressor and recti-

fier but have no fuses, circuit breaker, high pres-

1-5. Difference in Models

sure cut-out switch, solid state rectifier, or the

a. This manual covers Models CE20VAL4 and

new air foil evaporator and condenser fans. Model

CE20VAL6 Air Conditioners. Difference between

CE20VAL6 air conditioners in the following serial

the models are in the blower motors, compressors,

number range 432476 through 432485, 450516

and control circuits. Where differences exist, each

through 450668, 481947 through 481962 have a

model is covered separately in the applicable sec-

solid state rectifier, two 5 amp fuses, circuit

tion of this manual. The CE20VAL4 air condi-

breaker, high pressure cutout switch, Welco fan

tioner has a 400 hertz blower motor and com-

motor, and the new air foil evaporator and con-

pressor, while the CE20VAL6 has a 50/60 hertz

denser fan but have no surge suppressor. Not all

blower motor and compressor. Both models may

units are equipped with a fresh air filter.

AGO 20053A