Suburban Mfg REGAL INTENSIVE CARE UNIT 12019-01-NGFREP - Manual (Page 99)

Form No. 702718 Rev. A March, 2005 87
Owner’s Manual - Regal Intensive Care Unit
New Style Units
1. Do not remove the oxygen sensor from the partiion wall.
2. With the oxygen sensor in place in the partition wall,
unscrew the end cap from the oxygen sensor (Figure 96).
3. On the fuel cell, remove the shorting button - refer to the
instructions packed with the fuel cell.
Note: Watch the oxygen concentration meter (Figure 38) as you
perform Step 4. The black calibration needle moves to the right,
then settles down.
4. Place the fuel cell into the oxygen sensor body. The end
of the fuel cell with the metal disk goes in first.
5. Gently, screw the sensor end cap (Figure 96) back on. Be
careful, the threads are very fine and are easily damaged.
6. Proceed to Finish the Installation below.
Finish the Installation
1. Close and secure the electronics compartment door.
2. Close and secure the filter/fans compartment.
3. Using the calibration knob (Figure 98), position the black
needle in the oxygen concentration meter to 20.5% (the
percentage of oxygen in atmospheric air).
4. When you are finished working with the fuel cell, wash
your hands thoroughly.