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Flow
Temperature
Sensor
Overheat
Sensor
Rotary
User Interaction Controller
Knob
7726858-01 (1/19)
Fig. 51
Fan Protective Cover
removed for clarity
Return
Temperature
Fig. 52
Sensor
Fig. 52a
Lower Panel
10.3.6
Flow Temperature Sensor (Fig. 51)
The sensor is fitted in a 'dry' pocket.
1. Disconnect the wiring from the flow temperature sensor.
2. Unscrew the sensor from the top of the heat exchanger.
3. Fit the new sensor and reconnect the wiring.
10.3.7
Overheat Sensor (Fig. 51)
The sensor is fitted in a 'dry' pocket. For ease of
access remove the Flow Temperature Sensor (10.3.6)
1. Disconnect the wiring from the overheat sensor.
2. Unscrew the sensor from the top of the heat exchanger.
3. Fit the new sensor and reconnect the wiring.
10.3.8
Return Temperature Sensor (Fig. 52)
The sensor is fitted in a 'dry' pocket.
1. Disconnect the wiring from the return temperature sensor.
2. Unscrew the sensor from the top of the heat exchanger.
3. Fit the new sensor and reconnect the wiring.
10.3.9
User interaction Controller (Fig. 52a)
1. Disconnect the User Interaction Controller cable from the
PCB and undo the cable gland locknut.
2. Note the setting and carefully prise off the rotary temperature
selection knob.
3. Ease apart the retaining clips on the lower panel and
withdraw the User Interaction Controller and cable.
4. Reassemble in reverse order, setting the rotary knob as
previously noted.
Maintenance
10
600 Heat
53
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