TM-9-2540-207-14-P
HEATER, VEHICULAR COMPARTMENT, MODEL: A20
TECHNICAL MANUAL; OPERATOR, FIELD, AND SUSTAINMENT MAINTENANCE MANUAL INCLUDING REPAIR PARTS AND SPECIAL TOOLS LIST
JULY 2007
TM-9-2540-207-14-P - Page 6 of 288
TM 9-2540-207-14&P
iv
2
INSTALLATION .
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2-1
2.1
Dual Air Conversion.
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2-1
2.2
Combustion Air Inlet Connection.
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2-2
2.3
Exhaust Connection .
...................................................................................................
2-2
2.4
Mounting.
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2-2
2.5
Electrical Connections.
................................................................................................
2-3
2.6
Fuel Inlet Connection.
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2-4
2.7
Heat Outlet Connection .
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2-5
3
OPERATING INSTRUCTIONS .
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3-1
3.1
Approved Control Boxes.
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3-1
3.2
Starting the heater.
......................................................................................................
3-1
3.3
Starting Systems Procedures.
.....................................................................................
3-1
3.4
Normal Operation .
.......................................................................................................
3-2
3.5
Shutdown Procedures .
................................................................................................
3-3
3.5.1
Manual Shutdown.
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3-3
3.6
Purging the Heater .
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3-3
3.7
Heater Data Codes Mode.
...........................................................................................
3-3
3.8
Warning & Shutdown Faults.
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3-4
4
HEATER INSPECTION.
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4-1
4.1
Periodic Service and Inspection .
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4-3
4.2
Mandatory Fuel Line Inspection .
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4-3
4.3
Inspection Level.
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4-4
4.4
Unit Level Inspection .
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4-4
4.4.1
Ignitor & Ignitor Holder Maintenance.
...................................................................
4-5
4.4.1.1 Removal.
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4-5
5
HEATER MAINTENANCE .
................................................................................................
5-1
5.1
General.
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5-1
5.2
Determining differences between design versions.
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5-2
5.2.1
Design Iteration 1 .
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5-3
5.2.2
Design Iteration 2 .
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5-4
5.2.3
Design Iteration 3 .
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5-5
5.3
A20 Major Assemblies (Applies to all design iterations).
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5-6
5.3.1
Test Stand Installation & Removal .
......................................................................
5-7
5.4
Shell Assembly.
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5-8
5.4.1
Top Cover.
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5-9
5.4.1.1 Removal.
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5-9
5.4.1.2 Installation.
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5-9
5.4.2
Top Shell .
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5-10
5.4.2.1 Removal.
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5-10
5.4.2.2 Installation.
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5-11
5.4.3
Bottom Shell.
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5-12
5.4.3.1 Removal.
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5-12
5.4.3.2 Installation.
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5-12
5.5
Ignitor & Ignitor Holder.
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5-13
5.6
Vent Fan Assembly .
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5-14
5.6.1
Vent Fan Assembly Repair.
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5-15
5.6.1.1 Vent Fan Assembly Repair Procedure For Design Iterations 1 and 2 Only.
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