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OPERATING PROCEDURES cont'd - TM-9-4520-271-140056
OPERATING PROCEDURES cont'd - TM-9-4520-271-140058

TM-9-4520-271-14 Improved Army Space Heater (IASH) Electric Powered Multi-fuel 140 000 BTU Model H-140 Manual
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TM 9-4520-271-14
0005 00
OPERATING PROCEDURES
Continued
Heating Mode
HEAT MANUAL MODE
CAUTION
Do not operate the ASH in the heating mode for more than 10 minutes when ambient temperature is
above 100F (38C). Damage to equipment may result. Operating in the ventilation mode may be
done at any temperature.
1.
If ASH is operating in HEAT AUTO MODE, proceed to steps 5 thru 8. If not, proceed to steps 2 thru 8.
2.
Perform Assembly and Preparation for Use procedures (WP 0005 00-4 thru -7).
3.
Set control panel MODE SWITCH (2) to COOL DOWN position.
CAUTION
Do not operate ASH in the HEAT MANUAL MODE if ignition arc is not present. Damage to
equipment may result.
4.
Look through sight glass (1) and check for ignition arc. Ignition arc should be steady and bright blue in color. If
ignition arc is not seen, do not operate ASH.
5.
Set control panel MODE SWITCH (2) to HEAT MANUAL MODE position.
6.
Look through sight glass (1) and ensure that flame is present. If flame is not bright and steady, notify unit
maintenance.
7.
Check fuel pressure gage (3) for proper pressure at elevation and voltage frequency (50/60 Hz) (WP 0002 00, Table
3). If pressure is not correct, notify unit maintenance.
8.
If ambient temperature is below 0F (18C), wait 30 to 45 seconds before performing Shutdown procedure
(WP 0005 00-13).
0005 00-11






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