T-M50 / T-M50 ASME Service Manual
Ver. 1.05
63
CONFIDENTIAL
12-10. Conditions that stop the T-M50 from operating
<About the dual combustion system of the T-M50>
The T-M50 contains two combustion sections (left and right). The section(s) that fire on at any given time
will depend on the flow rate and set temperature of the T-M50.
This dual combustion or redundant system improves the T-M50’s dependability if abnormalities or error
codes occur. If an abnormality or error code occurs with one of the combustion sections, the other
section will still remain in operation, ensuring that the T-M50 will still operate at least at half capacity.
Although the dual combustion system allows for greater reliability in operation, there are a few
conditions which can occur that will shut down the T-M50 completely, due to safety reasons. These
conditions are listed below:
<Conditions that disable both combustion sections of the T-M50>
1.
Defective / malfunctioning fan motor in either/both combustion unit(s).
2.
Defective communication between the central computer board and the left/right computer(s).
3.
Failure of the central computer board.
4.
Adjusting the “gas-type” dipswitch on the central computer board while the T-M50 still has electrical
power, resulting in a “031” error code.
5.
Adjusting the temperature dipswitches on the central computer board to change the output set
temperature from 120°F or less to 125°F or higher while the T-M50 still has electrical power,
resulting in a “031” error code.
Right combustion section
Left combustion section
