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S
XT I
, O
ERIES
NSTALLATION
PERATION AND
Burner (continued)
PROBLEM
POSSIBLE CAUSE
Manual shut off valve closed
Safety Shut Off Valve not operating. Is there
positive gas pressure downstream of SSOV?
No main flame
Minimum gas supply pressure
Burner openings obstructed
Improper burner lower fire adjustment on
modulating valve
23.4 Temperature Controls
If temperature control problems occur and are not remidied in the troubleshooting procedure, refer to the
trouble shooting table for the unit specific temperature control amplifier.
For units with the Maxitrol
Series A1014 Amplifiers. Series 14 Amplifiers are supplied on units equipped with Basic and SDC style
remote panels.
For units with the Maxitrol
Series A 1044 Amplifiers. Series 44 Amplifiers are supplied on units equipped with DTC remote panels.
If problems persist after performing the troubleshooting procedure and the temperature control amplifier
troubleshooting procedure contract the factory.
82
S
M
ERVICE
ANUAL
®
series 14 temperature control amplifier, refer to the Field Service Check List for
®
series 44 temperature control amplifier, refer to the Field Service Check List for
SOLUTION
Open manual shut off valve
Check wiring from burner control to SSOV
Verify inlet gas pressure
Replace SSOV
Verify minimum gas supply pressure as per data
plate is available
Remove obstruction
Clean burner orifices holes
Adjust low fire as per the relevant Maxitrol tempera-
ture control instructions
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