TM 9-4120-404-14
e.
Steps b-d shall repeat twice.
Then, LED's 4, 5, and 6 illuminate and LED 7 remains
illuminated. End of routine.
22. Reset, by placing all switches in the "OFF" position and setting mode switch, S7, to
"OFF/RESET", and back to "H". Simultaneously place S4, S5, and S6 in the "ON" position,
followed immediately by S2. If LED's 4, 5, and 6 are illuminated, they shall turn off and in 10
seconds LED's 3, 4, 5, and 6 illuminate and LED 7 remains illuminated.
23. Reset, by turning mode switch, S7, to "OFF/RESET", however, keep S2, S4, S5, and S6 in the
"ON" position. Then turn mode switch to "H", LED 1 shall not illuminate. LED 7 shall remain
illuminate, in 10 seconds LED's 3, 4, 5, and 6 illuminate and LED 7 remains illuminated.
(b) Vent Mode Test.
1. Reset, by turning mode switch, S7, to "OFF/RESET" and placing all switches in the "OFF"
position. Then turn mode switch to "V" position. In 2 seconds LED 7 shall illuminate.
2. Rotate R6 from warmest to coldest position and back to warmest; LED 7 remains illuminated.
Temperature setting should have no effect.
3. Turn power supply switch off, and then back on again. In 2 seconds LED 7 shall illuminate.
4. Place S4 in the "ON" position. The following routine shall occur:
a.
LED 7 shall remain illuminated.
b.
For the next 8 seconds:
LED 4 illuminates.
LED 7 remains illuminated.
c.
For the next 2 seconds:
LED's 4 and 7 turn off.
d.
For the next 2 seconds:
LED 4 shall continue to be off.
LED 7 shall illuminate.
e.
Steps b-d shall repeat twice. Then, LED 4 illuminates and LED 7 remains illuminated. End of
routine.
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