TM 9-4520-251-14
Section Ill. OPERATION UNDER USUAL CONDITIONS
2-5 ASSEMBLY AND PREPARATION FOR USE.
Services of unit maintenance should be employed for original unpacking, assembly installation, and prepara-
tion for use. See paragraphs 4–2 through 4-5.
a. To Install Air Delivery Duct Hoses.
(1) Using One 12-inch Air Duct Hose.
(a) Remove air duct outlet cover.
(b) Hook 12-inch hose (1) directly to duct adapter (2) on heater.
(2) Using Three 6-inch Air Duct Hoses.
(a) Install adapter (3) on heater duct adapter(1).
(b) Install 6-inch air duct hoses (4) on adapter.
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