Instructions / Assembly

Page 2
NOx INSERTS
FIGURE 1
NOx Insert
Re-install Screws
8 - Re-install the manifold/valve assembly.
9 - Thread provided brass fitting to gas valve inlet until
hand tight. Using properly sized wrench, tighten
fitting 2 to 3 full turns being careful to position the side
port to allow clearance for the pressure switch and
harness. See figure 2.
NOTE - Never use channel lock pliers or a pipe
wrench on the brass fitting.
NOTE - Some installations may require the pressure
switch and fitting assembly to be positioned
differently than shown in figure 2.
10 - Thread the gas supply to the brass fitting until hand
tight. Using properly sized wrench to support brass
fitting, tighten supply line into fitting 2 to 3 full turns to
achieve leak free joint.
NOTE - Do not over tighten. (Maximum 3 full turns
past hand tight for ½” NPT per ASME B1.20.1-2013)
11 - Thread pressure switch to brass fitting 2 to 3 turns
past hand tight, then wire as shown in figure 7.
12 - Restore the electrical power to the unit.
13 - Inspect all sides of assembly. Turn on gas supply.
Immediately check the entire fitting surface and
assembly joints for gas leaks.
14 - Affix nameplate conversion sticker next to unit
nameplate.
15 - Complete the information required on the gas
converter sticker: date, name, and address. Affix
sticker to the exterior of the unit in a visible area.
16 - Follow the steps given in the start-up and adjustment
section.
IMPORTANT
Carefully check all piping connection for gas leaks. DO
NOT use matches, candles, open flames or other
means of ignition to check for gas leaks. Use a soap
solution or other preferred means.
CAUTION
Some soaps used for leak detection are corrosive to
certain metals. Carefully rinse piping thoroughly after
leak test has been completed. Do not use matches,
candles, flame or other sources of ignition to check for
gas leaks.
FIGURE 2
GAS VALVE WITH LOW INLET PRESSURE
SWITCH LOCATION
Brass Fitting
Low Inlet Pressure Switch
FIGURE 3
NEGATIVE BARBED FITTING
(remove for manifold adjustment)
MANIFOLD PRES
SURE OUTLET
GAS VALVE SHOWN IN ON POSITION
GAS VALVE