Bair Paws 850 Service Manual - page 14
Bair Paws
®
Model 850 Warming Unit Service Manual
12
Extend the hose straight to its full length. Remove the two screws that attach the case bottom
3.
(dark purple) to the warming unit and slide it down the hose.
Allow the system to warm 10 minutes before starting the test.
4.
With a small screwdriver, press the OT test button (see Figure 9). Continuously depress for the
5.
duration of the over-temperature test.* When functioning properly, the “Over-Temp” indicator
will illuminate, the OT value will be below 53°C, and the unit will switch off within 2 minutes.
If this does not occur, return the unit to Arizant Healthcare Inc. for service.
Reposition the case bottom with the filter and attach to the warming unit with two screws.
6.
Replacing the Filter
Service Frequency
Inspect the warming unit filter every 3 months and replace at least every 6 months.
Tools/Equipment Needed
Medium Phillips screwdriver
•
Replacement filters (available from Arizant Healthcare Customer Service)
•
Method
Disconnect the warming unit from the power source.
1.
Remove the two screws that attach the case bottom (dark purple) to the warming unit.
2.
Slide the case bottom down the hose, remove the used filter, and replace with a new filter.
3.
Reposition the case bottom (with the new filter) and attach to the warming unit with the two
4.
screws.
Reconnect the warming unit to the power source and turn the temperature controller “ON” to
5.
make sure the warming unit functions properly before returning to service.
*
Pressing the OT test button places the heater in a full-on, unregulated condition; therefore, the unit may
become slightly warm to the touch.
Figure 9. OT test button hole.