Testing Gas Supply Lines And Burner Controls; Pressure Testing The Gas Supply Lines - Lainox Naboo Compact Series Owner's Manual

Oven/Steamer
AUTOMATIC GAS VALVE
IN
BURNER CONTROL SYSTEM
Figure 2-8. Recommended Gas Supply Line Layout
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Install a manual shut-off valve between the gas supply line and the Oven/Steamer gas
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connection ( on dimension drawing).
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Install a sediment trap (drip leg) in the gas supply line, then connect gas supply piping to the
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steam generator gas valve piping.
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If natural gas pressure exceeds 14"/355,6 mm water column, a pressure regulating valve
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must be installed in the gas supply plumbing to reduce the pressure to within the limits
specified in Gas Supply Requirements.
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If Propane gas is supplied, use a gas pipe joint compound which is resistant to Propane gas.
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TESTING GAS SUPPLY LINES AND BURNER CONTROLS

After initial installation, both the gas lines and burner controls should be inspected for proper
installation and tested for leaks and proper operation. After service or repair, the components
affected should be inspected and tested for leaks and proper operation.

Pressure Testing The Gas Supply Lines

The gas lines leading to the Oven/Steamer can be tested immediately after installation, or
during the Start-Up Checks. Do not supply gas to these lines until they have been tested.
When testing these lines observe the following.
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Remove the right side access panel. Check all internal and external connections for proper tightness.
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Refer to Figure 2-8, and set-up the Oven/Steamer automatic gas valve according to the test
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pressure being used. The same pressure criteria apply when testing lines prior to the manual
gas shut-off valve.
• The appliance and its individual shut-off valve must be disconnected from the gas supply
piping system during any pressure testing of that system at test pressures in excess of
14"/355.6 mm water column (1/2 psi or 3.45 kPa).
• 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 14"/355.6 mm water column (1/2 psi or 3.45 kPa).
INSTALL AND CONNECT GAS SUPPLY LINES
PRESSURE REGULATING
VALVE (IF REQUIRED)
GAS SUPPLY CONNECTION
ON DIMENSION DIAGRAM
51
90028771rev00
MAIN GAS
SHUT-OFF VALVE
MAIN GAS SUPPLY
DRIP LEG