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TM-9-2540-207-14&P Sustainment Manual for A20 Heater for M113 2540-01-396-2826 Download

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TM 9-2540-207-14&P 6-22 6.5.28 E4 – REVERSE BURNER AIRFLOW (Design Iteration 3 Only) BURNER FAN IS MEASURING REVERSE AIR THROUGH THE HEATER, OR IS OPERATING OUT OF RANGE; REVERSE BURNER AIRFLOW – DURING RUN MODE W/ TEMP DELTAS OR – DURING STARTUP OR – DUE TO BURNER RPM’S OR – DUE TO BURNER DUTY CHECK/POSSIBLE CAUSE REF. REPAIR 1 CHECK THAT DUCTING OF THE COMBUSTION AIR SYSTEM TO THE INLET AND THE EXHAUST DUCTING ARE CORRECTLY ATTACHED TO THE HEATER NEGATIVE PRESSURE ON STARTUP WILL GIVE THIS FAULT 2.2 RECONNECT COMBUSTION AIR DUCTING CORRECTLY RESTART HEATER 2 CHECK THAT COMBUSTION AIR AND EXHAUST DUCTING IS FREE FROM OBSTRUCTIONS REMOVE OBSTRUCTIONS RESTART HEATER 3 CHECK FOR CARBON ACCUMULATION OR OBSTRUCTIONS IN COMBUSTION ASSEMBLY 5.3 REMOVE CARBON AND CLEAN COMBUSTION ASSEMBLY RESTART HEATER CHECK CONDITION OF FLAME TUBE AND BURNER CHAMBER 5.3.2 5.3.5 IF DISTORTED, REPLACE FLAME TUBE AND BURNER CHAMBER RESTART HEATER 4 CHECK FOR WARPED BURNER FAN PLATE 5.5.4 REPLACE BURNER FAN PLATE RESTART HEATER 5 DEFECTIVE BURNER FAN MOTOR REPLACE BURNER FAN MOTOR RESTART HEATER 6 DEFECTIVE LOGIC BOARD REPLACE LOGIC BOARD RESTART HEATER 7 DEFECTIVE HEAT EXCHANGER REPLACE HEAT EXCHANGER RESTART HEATER 6.5.29 E5 - INLET OVER PRESSURE (Design Iteration 1 & 2 Only) AIR IS BEING FORCED THROUGH THE HEATER BY THE NBC SYSTEM AT STARTUP, OR BURNER FAN OPERATING LIMITS ARE OUT OF RANGE CHECK/POSSIBLE CAUSE REF. REPAIR 1 ENSURE ALL DUCTING TO HEATER IS PROPERLY CONNECTED 2.3 2.7 RECONNECT DUCTING RESTART HEATER 2 CHECK THAT NBC SYSTEM IS OFF REF. APPROPRIATE VEHICLE TM VEHICLE TM TURN NBC SYSTEM OFF IF POSSIBLE RESTART HEATER RESTART NBC SYSTEM 5 MINUTES AFTER HEATER ENTERS RUN MODE (07 OR 14)