Hoshizaki HFE-140B Series, Руководство по обслуживанию

Страница: 42 / 52

39
Screw
Cover
Tab
IV. REMOVAL AND REPLACEMENT OF COMPONENTS
1. CONTROLLER BOARD AND THERMISTOR
[a] REMOVAL OF CONTROL BOX
1) Lift the Cover off the back of the Control Box.
2) Remove the screw (rear left) securing the Control Box, and
remove the Control Box.
3) Disconnect the connectors from the Control Box by pinching
both ends of the connectors with thumb and middle finger
and unlocking the connectors with forefinger.
4) Remove the four screws of the Control Box, and separate it
into the Operation Panel side and box side.
5) Remove the two screws from the Operation Panel side, and
remove the Controller Board.
[b] REPLACEMENT OF CONTROL BOX
1) Handle the Controller Board with care according to “III. 4. [a] SERVICING
CONTROLLER BOARD”.
2) Replace the Controller Board in the reverse order of the removal procedure with the
following points in mind:
* To replace the Control Box, be sure to hook the two tabs on the grips.
* Plug in the connectors until they lock in place.
* Keep the wires inside the Rear Cover.
3) Check that the Operation Panel is securely mounted.
4) After replacing the Controller Board, be sure to make model setting. Otherwise, the
unit will not operate properly, and the Compressor may be damaged.
[c] THERMISTOR
1) Remove the Air Duct inside the cabinet. See “5. [a] AIR DUCT”.
2) Remove the Interior Thermistor Bulb on the ceiling in front of the Evaporator by
unhooking the two tabs securing the Thermistor Holder.
3) Remove the Defrost Thermistor Bulb inside the Evaporator Fins by pinching off the
Thermistor Holder.
4) Pull out the Thermistors through the hole in the Refrigeration Unit Base. Be careful