6.5SERVICING THE HEATER PLATE

Table 6: MR810 Screw Torque Settings

Exploded

Screw

Application

Driver

Torque

Torque

Diagram

 

 

 

(in/oz)

(Nm)

Reference

 

 

 

 

 

Figure 8.2: 9,11

Screw M4 x 8 Pan Phil

Heater Plate Earth,

Philips #2

205–234

1.45-1.65

 

Taptite

Heater Plate Element

 

 

 

Figure 8.2: 3,6

Screw M3 x 5 Pan Phil

Thermostat,

Philips #1

163-177

1.15-1.25

 

Taptite

Thermistor

 

 

 

Figure 8.1: 5

Screw M3 x 5 Pan Phil

Heater Plate Stand-off

Philips #2

85– 113

0.6 – 0.8

 

Taptite

 

 

 

 

Figure 8.1: 1,2

Screw 6 x 53 Pan Phil

MR810 PCB,

Philips #2

99 –127

0.7 – 0.9

 

TY25 ZP

Case screw

 

 

 

6.5.1RESETTING THE THERMAL CUT-OUT

NOTE: If the heater plate is still hot, allow it to cool sufficiently before attempting to reset the thermal cut- out.

1.Disconnect the power supply and open the case (refer to § 6.2).

2.With the humidifier upside down, the thermal cut-out can be reset by depressing the red thermal cut-out

reset button through the hole in the PCB (Figure 6.5), using a pin of at least 60 mm long and diameter

6 of approximately 4-5 mm. If the thermal cut-out “clicks” when pressed then the cut-out had been tripped.

3.Close the case (refer to § 6.8.2).

Thermal cut-out reset

Figure 6.5: Location of the thermal cut out reset button

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MR810 Technical Manual Rev C REF 185042601