NG to LP Conversion Guide

396021 LP GAS AND 396025 NATURAL GAS CONVERSION KITS FOR VR8200/VR8300/SV9400/SV9500/SV9600
Automation and Control Solutions
Honeywell International Inc. Honeywell Limited-Honeywell Limitée
1985 Douglas Drive North 35 Dynamic Drive
Golden Valley, MN 55422 Scarborough, Ontario M1V 4Z9
customer.honeywell.com
® U.S. Registered Trademark
© 2005 Honeywell International Inc.
69-1238—2 G.R. Rev. 01-05
Using a screwdriver, turn the inner adjustment screw for
LO pressure clockwise to increase or
counterclockwise to decrease the gas pressure to
the burner.
10. Once high and low pressure have been checked
and adjusted, replace pressure regulator
adjustment cap. If the desired outlet pressure or
flow rate cannot be achieved by adjusting the gas
control, check the gas control inlet pressure using
a manometer at the inlet pressure tap of the gas
control. If the inlet pressure is in the nominal range
(see Tables 1 and 2), replace the gas control.
Otherwise, take the necessary steps to provide
proper gas pressure to the control.
Checkout
1. Make certain the primary air supply to the main
burner is properly adjusted for complete
combustion at the final pressure regulator setting.
The main burner must light reliably under all
conditions.
2. Place the system in operation and observe through
at least one complete cycle to assure all controls
are operating properly.
3. If manometer (pressure gauge) method is used,
perform Gas Leak Test at inlet and outlet pressure
tap plugs.
4. Make certain the conversion label is applied to the
gas control, heating appliance, and any other
controls to show conversion to a new type of gas.
Table 1. Pressure Regulator Specification Pressures (in. wc).
Table 2. Pressure Regulator Specification Pressures (kPa).
Model Type Type of Gas
Nominal Inlet
Pressure Range
Factory Set Nominal
Outlet Pressure Setting Range
Full Rate Full Rate
Two-stage NAT (White Stem) 5.0-7.0 1.7 Low
3.5 High
0.9-3.0 Low
3.0-5.0 High
LP (Black Stem) 12.0-14.0 4.9 Low
10.0 High
2.5-7.0 Low
8.0-11.0 High
Model Type Type of Gas
Nominal Inlet
Pressure Range
Factory Set Nominal
Outlet Pressure Setting Range
Full Rate Full Rate
Two-stage NAT (White Stem) 1.2-1.7 0.48 Low
0.9 High
0.37-0.75 Low
0.75-1.2 High
LP (Black Stem) 2.9-3.9 1.2 Low
2.5 High
0.9-1.4 Low
2.0-2.5 High
69-1238-2.fm Page 4 Tuesday, January 25, 2005 8:29 AM