TM 5-4520-253-13
REMOVE/lNSTALL HEAT EXCHANGER (CONT)
10.
11.
12.
13.
14.
15.
16.
Connect combustion blower air duct (17) to burner head assembly (15) using hose clamp (16).
Tighten hose clamp firmly.
Install igniter assembly (14) in burner head assembly (15). Connect ignition cable (13) to igniter
assembly.
Install carburetor (12) on burner head assembly (15) using four screws (10) and lock washers
(11).
Install flame switch and bracket assembly (3) and thermostat (9) using two screws (7) and lock
washers (8).
Install thermostat (6) using two screws (4) and lock washers (5) to secure bracket (2).
Close access door (1). Open shutoff valve at fuel container if heater is to be operated.
Test heated air as described in table 3-2, item 15, to determine carbon monoxide level.
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