Whirlpool WRX-17TM Servis Kılavuzu - Sayfa 8

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4.2.3. Thermofuse

Turned on in series connection with the heater defrost, the thermofuse protects the product and does not allow

that defrost heater be turned on continuously in case of failure of the defrost sensor. In case of failures in the

defrost system when the heater is continuously working, it will open at the range of 72 °C to 77 ° C.

4.3. Freezer Fan Motor

The Fan motor is a (V dc) motor and is fixed to the rear cover of the evaporator through a rubber flexible holder

(freezer), that protects from occasional vibrations, and consequently noise.

4.4. Refrigerator Fan Motor

The Refrigerator fan motor is also fed by direct voltage (V dc), therefore, located inside the wind flow, fixed

to a plastic housing by flexible rubber holder, which avoids occasional vibrations and consequently noise. it is

responsible for the forced air circulation inside the refrigerator compartment.

4.5. Electronic Control

The complete operation of this product is done by the electronic control, which executes the functions according

to the necessities, turning the components on or off through received/managed signals.

Inside its box, the electronic control is divided in 2 parts, a main board and a line filter.

Main board

Technical Characterístics:

Rated voltage: 24 Vdc

Operating range : 20,4 Vdc - 27,6 Vdc

Current max (a): 0,18 a

Potency max: 4,3 W

Speed rated: 3000 rpm

Technical Characterístics:

Rated voltage: 24 Vdc

Operating range : 20,4 Vdc - 27,6 Vdc

Current max (a): 0,1 a

Potency max: 2,9 W

Speed rated: 2900 to 3500 rpm

Line filter

CN1 – Compressor and power coard

CN2 – Load components and lamps

CN3 – Temperature sensors

CN4 – Interface board

Note: More details, check the wiring diagram