Gas Connection - Viking Professional VGSO166SS Installation Instructions Manual

Gas Connection

The gas supply (service) line must be the same size or greater than the inlet line of the appliance. This range uses a
1/2" (1.3 cm) ID NPT (Sch40) inlet. Sealant on all pipe joints must be resistive to LP gas.
1. M M a a n n u u a a l l s s h h u u t t - - o o f f f f v v a a l l v v e e : :
This installer-supplied valve must be installed in the gas service line ahead of the appliance in the gas stream and in a
position where it can be reached quickly in the event of an emergency.
2. P P r r e e s s s s u u r r e e R R e e g g u u l l a a t t o o r r : :
a) All heavy-duty, commercial type cooking equipment must have a pressure regulator on the incoming service line for
safe and efficient operation, since service pressure may fluctuate with local demand. External regulators are not
required on this range since a regulator is built into each unit at the factory. Under no condition bypass this built-in
regulator.
b) Any conversion required must be performed by your dealer or a qualified licensed plumber or gas service company.
Please provide the service person with this manual before work begins. (Gas conversions are the responsibility of the
dealer or end user).
c) This range can be sued with Natural or LP/Propane gas. It is shipped from the factory adjusted for use with natural
gas. The orifice hoods must be screwed snug when LP/Propane is used. (See LP/Propane conversion.)
d) Manifold pressure should be checked with a manometer, natural gas requires 5.0" W.C.P. and LP gas requires 10.0"
W.C.P. Incoming line pressure upstream from the regulator must be 1" W.C.P. higher than the manifold pressure in
order to check the regulator. The regulator used on this range can withstand a maximum input pressure of 1/2" PS
(14.0" W.C.P.). If the line pressure is in excess of that amount, a step down regulator will be required.
e) The appliance, its individual shut-off valve, and pressure regulator must be disconnected from the gas supply piping
system during any pressure testing of that system at pressures in excess of 1/2 psig (3.45 kPa)
f) The appliance must be isolated from the gas supply piping system by closing its individual manual shut off valve
during any pressure testing of the gas supply piping system at test pressures equal to or less than 1/2 psig (3.45 kPa)
3. R R i i g g i i d d C C o o n n n n e e c c t t i i o o n n s s : :
a) Incoming gas is brought from an intake pipe (not supplied) at the lower right center of the unit to the pressure
regulator. The only connection necessary is from the service supply, through the shut-off valve (not supplied) to this
intake pipe (not supplied) to the regulator.
b) Double-check any installer-supplied intake pipes visually and/or blow them out with compressed air to clear any dirt
particles, threading chips, or other foreign matter before installing in service line. Those particles will clog orifices
when gas pressure is applied.
4. F F l l e e x x i i b b l l e e C C o o n n n n e e c c t t i i o o n n s s : :
If the unit is to be installed with flexible couplings and/or quick-disconnect fittings, the installer must use a heavy-duty
agency design-certified flexible connector of at least 1/2" (1.3 cm) ID NPT (with suitable strain reliefs) incompliance with
ANSI Z21.41 and Z21.69. In Canada: CAN 1-6, 10-88 metal connectors for gas appliances and CAN 1-6.9 M79 quick
disconnect devices for use with gas fuel.
CAUTION:
Before placing the oven into operation, always check for gas leaks with a soapy water solution or other
acceptable method. D D O O N N O O T T U U S S E E A A N N O O P P E E N N F F L L A A M M E E T T O O C C H H E E C C K K F F O O R R L L E E A A K K S S ! !
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