NG to LP Conversion Guide
Table Of Contents
INSTALLATION INSTRUCTIONS
69-1238—2
396021 LP Gas and 396025
Natural Gas Conversion Kits for
VR8200/VR8300/SV9400/SV9500/SV9600
Two-Stage Combination Gas Controls
APPLICATION
The 396021 LP Conversion Kit changes VR8100/
VR8200/VR8300/SV9400/SV9500/SV9600 family
two-stage combination gas controls from regulated
natural gas to regulated LP gas. The 396025 Natural
Gas Conversion Kit changes VR8100/VR8200/VR8300/
SV9400/SV9500/SV9600 family two-stage combination
gas controls from regulated LP gas to natural gas. Kits
include a stem/spring assembly and conversion label.
Natural gas kits use a white stem and liquefied petroleum
(LP) kits use a black stem. To use these kits, make sure
the gas control is equipped with a two-stage pressure
regulator (suffix letter Q).
INSTALLATION
When Installing this Product...
1. Read these instructions carefully. Failure to follow
them could damage the product or cause a
hazardous condition.
2. Check the ratings given in the instructions and on
the product to make sure the product is suitable for
your application.
3. Installer must be a trained, experienced service
technician.
4. After installation is complete, check out product
operation as provided in these instructions.
WARNING
Fire or Explosion Hazard.
Can cause property damage, severe injury
or death.
Follow these warnings exactly:
1. To avoid dangerous accumulation of fuel gas,
turn off the gas supply at the appliance service
valve before starting installation, and perform
Gas Leak Test after installation is complete.
2. Do not force the gas control knob. Use only
your hand to turn the gas control knob. Never
use any tools. If gas control knob will not
operate by hand, then a qualified technician
should replace the gas control. Force or
attempted repair may result in fire or explosion.
WARNING
Electrical Shock or Equipment Damage
Hazard.
Can cause severe injury or death or short
equipment circuitry.
Disconnect power supply before installation.
Always change the main and pilot burner orifices when
converting from natural to LP gas or from LP to natural
gas. Carefully follow appliance manufacturer
specifications and instructions to assure proper
appliance conversion. Gas controls are factory-set for
natural (and manufactured) or LP gas. Do not attempt to
use a gas control set for natural (or manufactured) gas
on LP gas, or an gas control set for LP gas on natural
(and manufactured) gas. Follow the appliance
manufacturer instructions if available; otherwise, use
these instructions as a guide.
To convert from one gas to another:
1. Turn off gas supply at the appliance service valve.
2. Remove the pressure regulator cover assembly.
Refer to Fig. 1.
3. Remove the existing stem/spring assembly.
4. Insert the replacement stem/spring assembly.
5. Replace the pressure regulator cover assembly
and tighten screws.
6. Mount conversion label on the gas control
7. Follow Start-Up and Checkout instructions.
STARTUP AND CHECKOUT
Control Knob Settings
NOTE: SmartValve™ System Controls
(SV9400/SV9500/SV9600 Family) do not have
control knobs. They have an ON/OFF switch.
Control knob settings are as follows:
a. OFF: Prevents pilot and main gas flow.
b. PILOT (On standing pilot controls only):
Permits pilot burner gas to flow when the red
knob is held down or the thermocouple current
is above the power unit dropout value.
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