SYSTEMS CHECK
BLEED-AIR HEATER OPERATIONAL CHECK
The operational check may be accomplished at this time or at any time the
heater operation is desired.
NR/N2 : 100% stabilized, check.
TEMPerature CONTrol knob : MIN.
HTR switch : ON.
TEMPerature CONTrol knob : Turn the knob clockwise
(MAX) and observe no air-flow
from outlets.
MIX switch : ON and observe no air-flow.
SHUT-OFF # 1 switch :
ON and observe warm air-flow
from outlets, then set to OFF.
SHUT-OFF # 2 switch : ON and observe warm air-flow
from the outlets.
SHUT-OFF # 1 switch : ON.
TEMPerature CONTrol knob : Turn the knob fully counter-
clockwise (MIN), observe that
the air-flow shut-off, then turn
it again clockwise (MAX).
MIX switch :
OFF, observe that the airflow
shut-off, then move to ON again.
HTR switch : OFF, observe that the airflow
shut-off.
TEMPerature CONTrol knob : Turn fully counterclockwise
(MIN).
MIX switch : OFF.
SHUT-OFF # 1 and # 2 switches : OFF.
RFM A109E
APPENDIX 6
Page 4 of 18 R.A.I. Approved
Rev. 2
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