Whirlpool 1997 F 서비스 매뉴얼 - 페이지 12

{카테고리_이름} Whirlpool 1997 F에 대한 서비스 매뉴얼을 온라인으로 검색하거나 PDF를 다운로드하세요. Whirlpool 1997 F 32 페이지. 22 cu. ft. bottom mount refrigerator/freezer

Defrost System

Automatic defrost every eight hours of compressor run time is accomplished by a radiant electric

heater suspended beneath the evaporator. (Fig. 4)

Retaining

Clip

Fig. 4

The defrost timer is located in a box at the right side of the cabinet behind the toe grille. (Fig. 5) The

defrost timer actuates the defrost heater through the bi-metal thermostat. (Fig. 6)

Bi-Metal

Thermostat

Fig.5

The bi-metal thermostat is attached to the outlet side of the evaporator coil tubing and opens at 48°F

to terminate the defrost heating. After 33 minutes from the start of defrost cycle, the timer restores

operation to the compressor circuit. The bi-metal thermostat contacts close at 13°F, enabling the

defrost heater to operate during the next defrost cycle. The defrost heater is suspended on the right

side and across the bottom of the evaporator. The defrost heater also provides warming to the

defrost drain area to keep it clear during the defrost cycle.

Evaporator

Retaining

Clip

Defrost Heater

Defrost

Timer

Fig.6