Part 2. Gas Valve And Burner Setup - NTI TFTN500 Instructions Manual

Part 2. Gas valve and Burner Setup

Manifold Pressure
Test Port
(bleed screw)
Throttle Screw –
to calibrate combustion
at Max Power (100%)
6
Used
Offset Screw –
to set combustion at
Min Power (10%).
Figure 2 – Gas valve adjustment for TFTN500-850
Used
Low Gas Pressure Switch GML (front)
Factory-set to close at 3 in. w.c.
High Gas Pressure Switch GMH (rear)
Factory-set to open at 20 in. w.c.
Line Pressure
Test Port
(bleed screw)