Installation and Operation Manual TFTN 085-199
Figure 9-1 Placing the Boiler in Firing Rate Test Mode (…Continued)
Figure 9-2 TFTN085-199 Gas Valve Adjustment
Verify Burner Power goes to 10% before proceeding with Min
Power combustion calibration (see Table 9-1).
Note: Use the Offset Screw to adjust Min Power combustion – see
Figure 9-2.
Select Press to Stop Test upon completing the combustion
calibration procedure. Proceed to other menus by selecting
the Home or Back buttons.
Throttle Screw – used to calibrate
combustion at Max Power (100%)
Use 4mm hex wrench
Offset Screw – used to set
combustion at Min Power (10%).
Use T40 Torx wrench
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