Technical Overview; Principle Of Operation; Ntc Thermistor; Temperature Limiters - Fisher & Paykel DE7060P1 Service Manual

6.1 Principle of operation

The ambient air is drawn into the cabinet by
the fan which is attached to the motor.
This air pressurises the cabinet and is forced
over the heating element and heated.
The heated air then enters from the rear of
the drum and meets with the clothes, the
humid hot air exits through the lint filter and
exhaust duct.

6.2 NTC thermistor

NTC1
NTC2
Resistance is monitored by the controller of both NTC thermistors to determine the dryness of the load.
Once the desired dryness is achieved the cool down period begins.

6.3 Temperature limiters

There are 3 limiters (thermostats) located and mounted to the element carrier. Two are resettable and
one is a non resettable thermal cut-out.
Resettable
Non-resettable

6.4 Heater elements

A 1200 watt and a 550-watt element are used which are controlled indvidually by the relays in the
electronic controller.
High
Medium
Low

6 TECHNICAL OVERVIEW

Exhausting
Air
Exhaust temperature
Ambient temperature
150°c cut out
120 °c cut out
Both elements
Large element
Small element
Drum
Motor
1750 watts
1200 watts
550 watts
Air Inlet
High
Pressure
Air
16