Bair Hugger Model 505 Service Manual
16
Check the 3M
TM
Bair Hugger
TM
therapy website to ensure you have the most recent version of this document.
www.bairhugger.com reorder #202430A
Over Heat Alarm Thermostat Adjustment
4. Locate the over heat adjustment thermostat (see Figure 7).
NOTE:
Adjustment of the over heat alarm thermostat
is most easily done while the temperature read-out is
climbing.
5. Use a small slotted screwdriver to adjust the thermostat.
• If the tested alarm temperature was below the
specified limits, turn the screwdriver CLOCKWISE to
increase the alarm temperature.
• If the tested alarm temperature was above
specified limits, turn the screwdriver
COUNTERCLOCKWISE to lower the alarm
temperature.
6. Fine-tune the adjustment until the warming unit alarms at
the specified temperature.
7. Manually turn the warming unit to STANDBY, then
ON again. This manual reset constitutes one cycle.
8. Retest the alarm temperature to verify correct adjustment at
least 2 times. Allow the warming unit to cycle before each
test.
9. When the warming unit alarm setting is within the
specified limit, turn the warming unit to STANDBY and
disconnect it from the power source.
10. Remove the hose end from the temperature test device.
11. Replace the over heat alarm test panel. Resecure the screw.
12. Record the maintenance action taken and the hours of
operation (read from the hour meter) in the Maintenance
Log section.
Figure 7. Location of Over
Heat Alarm Thermostat
Over heat alarm
thermostat access
(detail)
