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GAS CONNECTION
The data plate on
the inside of the door panel indicates the type of gas your steamer is equipped to burn.
DO NOT connect to any other gas type.
Keep the appliance area free and clear from combustible substances. Do not obstruct the flow of
combustion and ventilation air.
A
3
/4" NPT threaded fitting is provided at the rear of the steamer for the gas supply connection (Fig. 1).
Each steamer is equipped with an internal pressure regulator which is set at 3.5" W.C. (0.87 kPa)
manifold pressure for natural gas or 10" W. C. (2.5 kPa) for propane gas. Use the
1
/8" pipe tap on the
burner manifold for checking pressure.
An adequate gas supply is necessary. Undersized or low-pressure lines will restrict the volume of gas
required for satisfactory performance. A steady supply pressure from 7" W.C. (1.75 kPa) for natural
gas and from 11" W.C. (2.75 kPa) for propane gas is recommended. With all steamers operating
simultaneously, the manifold pressure on all steamers should not show any appreciable drop.
Fluctuations of more than 25% on natural gas and 10% on propane gas will create problems and affect
burner operation. Contact your gas company for correct supply line sizes.
Purge the supply line to clean out any dust, dirt or foreign matter before connecting the line to the
steamer.
Use pipe joint compound that is resistant to the action of liquified petroleum or propane gases on all
threaded connections.
Codes require that a gas shutoff valve be installed in the gas line prior to the steamer. Make sure the
pipes are clean and free of obstructions, dirt and piping compound. A manual gas shutoff valve is
supplied for each gas burner unit.
WARNING: PRIOR TO STARTUP, CHECK ALL JOINTS IN THE GAS SUPPLY LINE FOR LEAKS.
USE SOAP AND WATER SOLUTION. DO NOT USE AN OPEN FLAME.
Do not connect the steamer to the electrical supply until after the gas connection has been made.
TESTING THE GAS SUPPLY PIPING
When test pressures exceed
1
/2 psig (3.45 kPa), the steamer and its individual shutoff valve must be
disconnected from the gas supply piping system during any pressure testing of the system. When test
pressures are
1
/2 psig (3.45 kPa) or less, the steamer must be isolated from the gas supply piping system
by closing its individual manual shutoff valve during any pressure testing of the system.
ELECTRICAL CONNECTION (Fig. 1)
WARNING: THE STEAMER IS PROVIDED WITH A THREE-PRONG GROUNDING PLUG. THE
OUTLET TO WHICH THIS PLUG IS CONNECTED MUST BE PROPERLY GROUNDED. IF THE
RECEPTACLE IS NOT THE PROPER GROUNDING TYPE, CONTACT AN ELECTRICIAN. DO NOT
REMOVE THE GROUNDING PRONG FROM THE PLUG.
Refer to the data plate and the electrical diagram located on the inside surface of the right side panel.