International Thermal Research CO105D, Руководство оператора

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5.14
6
- WATER PUMP
The water pump is shorted.
-The burner will shut down.
-The diagnostic code,
6
will be displayed.
-The buzzer will sound for 10 seconds.
-The control board will purge with the combustion fan for two minutes.
-In order to restart the burner, check the water pump. Then reset the fault by switching the service
switch OFF then ON again.
The remote panel switch does not reset a short circuit fault.
5.15
7
- FLAME OUT
The flame went out or did not ignite.
-The burner will shut down.
-The diagnostic code,
7
will be displayed.
-The control board will try to restart the burner two more times. After three unsuccessful ignition
attempts, the buzzer will sound for 10 seconds.
-The control board will purge with the combustion fan and circulating pump for two minutes. The
diagnostic code
7
will continue to be displayed.
The single most common reason for flame out faults is when air gets into the fuel system. This is
normally caused by loose fittings or when your fuel supply is teed off a fuel line used by your engine or
generator. As air accumulates and passes through the nozzle, it interrupts the fuel and shuts down the
burner. When this happens, it may be necessary to reset the fault a few times to ensure all air has
passed through the system. If the burner resumes normal operation, you must find the source of the air
leak, otherwise, this fault will continue to occur. An Air Accumulator has been installed to collect the
air before it reaches the nozzle. Check regularly and bleed if necessary. Air which is collected is an
indication of a leak somewhere in the fuel system.
1.
Check the fuel supply. The fuel pump will chatter if there is no fuel or when air is passing through
the pump. Check the Air Accumulator for air and bleed if necessary. Check connections between
the fuel tank and fuel pump and the regulator and nozzle for air leaks. Find source of air entry and
repair. Make sure the nozzle or fuel filter is not clogged.
2. Check the air line hoses for any restriction of air flow through the compressor. Restrictions may be
caused by a crimped hose, clogged air filter, or a loose or leaking air hose from the compressor
outlet to the nozzle. Check the air filter inlet for any obstructions.
3. Make sure the air pressure of the compressor with the nozzle installed, is at 8 to 9 psig for CO-
20/32 models and 10 to 12 psig for CO-45/65, and 14 to 16 psig for CO-85/105 models.
4. Check for negative pressure in the area around the heater. When the engine is running, it can draw
air back through the heater’s exhaust pipe. All intake air and exhaust connections must be tight.
5. Check for restrictions or leaks in the combustion air intake hose or exhaust pipe.
6. Check for open circuit on fuel pump/solenoid and compressor.
-To restart the burner, check the fuel supply, check for air in the fuel line, and clean the nozzle.
Then reset the fault by switching the service switch or the remote switch OFF then ON again.
7. If when reset, the board shuts down without trying to restart the burner the board is defective.