Mitsubishi Electric PAA-A18AA1 Service Manual page 34

Control box user interface
4b
W
4a
W1
ON
3a
1. Normal mode (indicator color: green). When
illuminated, it means that the system is
functioning normally.
2a. Test mode (indicator color: red) - Allows the
technician to operate W1/W2 using front panel
push buttons mentioned below.
2b. Emergency mode (indicator color: red). If
illuminated, it means that the system is in error
mode.
3a. W1 ON
Test mode push button (not illuminated, button
color: white).
IMPORTANT
Be sure to change back to Normal mode operation after Test mode operational
checks are completed!
Specifications are subject to change without notice.
PAA-A18, 24, 30, 36, 42AA1/BA1/CA1
Test
mode
1 W 2
W2
ON
3b
34
Normal mode
Emerg.
mode
W1/W2
OFF
3c
3b. W2 ON
Test mode push button (not illuminated, button
color: white).
3c. W1 and W2 OFF
Test mode push button (not illuminated, button
color: white).
4a. First stage heat (emergency mode) (indicator
color: amber).
4b. Second stage heat (emergency mode)
(indicator color: amber).
1
2a
2b
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