Invacare 6LXO2 Service Manual page 66

With senso2
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PROCEDURE 20
5-a.
P.E. Valve Coil (IRC5LXO2 after S/N 97JXXXX) - Alarm sequence occurs when the P.E. Valve
Coil, connection or P.C. Board Circuitry has failed.
A
Test in the following manner:
L
A
P.E. Valve Coil Test (FIGURE 4)
R
5-b.
With the unit running and flow set at 5 L/min., remove one (1) yellow wire from the P.E. Valve. The
M
P.E. Coil Alarm should activate within 10 seconds. (Refer to FIGURE 5 for Shutdown Mode.)
T
E
S
T
3LX, 5LX, 5LXO2
(BEFORE S/N 97JXXXX)
INTERNAL LED
ALARM
High Pressure
Low Pressure
Time-Out
(30 Secs.)
Low O2
All alarms have Compressor Shutdown, Horn
ON and IRC5LXO2 ONLY - RED Panel LED
ON.
FIGURE 4 - P.E. VALVE COIL TEST
ALARM MODES
RED
GREEN
On
Off
On
On
On
On
On
Off
FIGURE 5 - ALARM MODES
P.E. Valve Coil
Yellow Wires
3LX, 5LX, 5LXO2/5LXO2T, 6LXO2/6LXO2T
(AFTER S/N 97JXXXX)
INTERNAL LED FLASHES
ALARM
RED
Three (3) Beeps at
0
Startup
Short Beep,
0
Long Pause
Continuous
1
Continuous
1
Continuous
1
Continuous
1
Continuous
1
Continuous
2
Continuous
2
Continuous
2
Continuous
2
Continuous
3
*No Shutdown, Unit continues to run.
All alarms have Compressor Shutdown, Horn ON and
5LXO2/5LXO2T, 6LXO2/6LXO2T ONLY - RED Panel
LED ON.
66
ALARM TEST
GREEN
0
No Problems - System
OK
0
Main Power Loss
1
Low Pressure:
Major Leak
2
High Pressure:
No Switching
3
Time-out Failure:
Compressor
4
Pilot Valve 1 Coil
5
Pilot Valve 2 Coil
1
73% Shutdown: Low O2
3
PE Valve Coil
4
Eprom Failure
5
Ram Failure
1
Oxygen Sensor Failure

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