Figure 7. Location of Over
Heat Alarm Thermostat
Over heat alarm
thermostat access
(detail)
Over Heat Alarm Thermostat Adjustment
Locate the over heat adjustment thermostat (see Figure 7).4.
NOTE: Adjustment of the over heat alarm thermostat is most
easily done while the temperature read-out is climbing.
Use a small slotted screwdriver to adjust the thermostat.5.
• Ifthetestedalarmtemperaturewasbelow the specified
limits, turn the screwdriver CLOCKWISE to increase
the alarm temperature.
• Ifthetestedalarmtemperaturewasabove specified
limits, turn the screwdriver COUNTERCLOCKWISE
to lower the alarm temperature.
Fine-tune the adjustment until the warming unit alarms at 6.
the specified temperature.
Manually turn the warming unit to STANDBY, then 7.
ON again. This manual reset constitutes one cycle.
Retest the alarm temperature to verify correct adjustment at 8.
least 2 times. Allow the warming unit to cycle before each
test.
When the warming unit alarm setting is within the 9.
specified limit, turn the warming unit to STANDBY and
disconnect it from the power source.
Remove the hose end from the temperature test device.10.
Replace the over heat alarm test panel. Resecure the screw.11.
Record the maintenance action taken and the hours of 12.
operation (read from the hour meter) in the Maintenance
Log section.
Bair Hugger Model 505 Service Manual
14
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