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MR810 Technical Manual Rev C REF 185042601
6
6.5 SERVICING THE HEATER PLATE
Table 6: MR810 Screw Torque Settings
Exploded
Diagram
Reference
Screw Application Driver Torque
(in/oz)
Torque
(Nm)
Figure 8.2: 9, 1 1 Screw M4 x 8 Pan Phil
Taptite
Heater Plate Earth,
Heater Plate Element
Philips #2 205–234 1 . 45-1.65
Figure 8.2: 3, 6 Screw M3 x 5 Pan Phil
Taptite
Thermostat,
Thermistor
Philips #1 163-177 1.15-1.25
Figure 8.1: 5 Screw M3 x 5 Pan Phil
Taptite
Heater Plate Stand-off Philips #2 85– 113 0.6 – 0.8
Figure 8.1: 1, 2 Screw 6 x 53 Pan Phi l
TY25 ZP
MR810 PCB,
Case screw
Philips #2 99 –127 0.7 – 0.9
6.5.1 RESETTING THE THERMAL CUT-OUT
NOTE: If the heater plate is still hot, allow it to cool sufficiently befo re 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 do wn, 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
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).
Figure 6.5: Location of the thermal cut out reset button
Thermal cut-out
reset