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V
Electrical System Components
POWERSWITCH
(Reference 448)
The power switch is a three-pole, single throw, push button type. It is panel
mounted.
For the Breeze concentrator two sets of poles are in service.
+
Pole 4 is used to switch AC power on and off. The AC power is on when the
push button is low, (green lamp lighted); and off when the push button is
high.
+
Pole 3 is used to switch the alarm circuit (9 volt DC) on and off.
© 4
Pole 2 does not exist on this switch!
+. Pole 1 is not used for the Breeze concentrator.
Note:
When the power switch is "ON", the audio alarm will sound when the
pressure switch contacts are closed (low pressure). This audio alarm will sound
with the unit plugged in or not plugged in.
A 9 VDC battery {reference #19)
powers the alarms.
When powered on, the compressor will quickly build pressure,
open the pressure switch contacts, and deactivate the audio alarm. The green lamp
will light when the unit is "ON" and correctly powered.
COOLING FAN (Reference #27)
The cooling fan provides cool air through the inlet air filter (reference #1) located at -
the right side of the upper front panel of the concentrator.
After passing through
the intake filter, the cooling air is drawn through the ATF module compartment and
then is blown into the compressor compartment. The cooling air is then directed
across the compressor after cooler tubing, and finally exits at the grille at the upper
left rear of the cabinet.
Caution:
The patient must clean the intake air filter weekly to maintain the required
airflow for cooling.
Caution:
The cooling air intake and exhaust grilles must remain free of obstructions
to assure proper cooling of the oxygen concentrator.
HOUR METER
(Reference #18).
-
The hour meter is located behind the front panel access door.
The hour meter
indicates the total elapsed running time for the concentrator. The display resolves
running time to 1/10 hour, and reads to a maximum running time of 99,999.9
hours. The display will then return to 000000.0 hours and begin to accumulate the
time again.
Page 9
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