Bair Hugger Security Systems Service Manual download pdf (Page 18)

Bair Hugger Model 505 Service Manual

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Over Heat Alarm Testing

5. Allow the warming unit to cycle 2 times more after the first

satisfactory reading. When the alarm activates, note the

alarm temperature read-out from the test kit. See Table 1

for specified limits.

NOTE: The first over heat cycle temperature may be slightly

higher when started from a cold start.

6. If the results of the test did not meet specified limits,

adjust the over heat thermostat. See the Over Heat Alarm

Thermostat Adjustment section.

7. If the results of the test did meet specified limits, turn the

warming unit to STANDBY, and disconnect the warming

unit from the power source.

8. Remove the hose end from the port on the Temperature

Test Unit.

9. Retighten the screw on the over heat alarm test panel.

10. Record the maintenance action taken and hours of

operation (read from the hour meter) in the Maintenance

Log section.

Table 1. Over Heat Specification

High Temperature Thermostat Model 505

The thermostat interrupts power to the heater and activates

the alarm at a preset high temperature of 53° ± 3°C

(127.4° ± 5.4°F) or less at the end of the hose, as determined

by the Temperature Test Unit Model 22110.

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Bair Hugger Security Systems Service Manual Page 18