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Chapter 2, SteamCraft 10 Service Manual
Models 24-CGA-10, 24-CGP-10, 24-CEA-10, 24-CEP-10
Figure 2-14. Recommended Gas Supply Line Layout
• On Atmospheric models (24-CGA-10), use 1/2-inch IPS gas supply pipe
and fittings.
• On Pressure models (24-CGP-10), use 3/4-inch IPS gas supply pipe and
fittings.
3. Install a manual shut off valve between the gas supply line and the
SteamCraft 10 gas connection (F on Figure 2-2)
4. Install a sediment trap (drip leg) in the gas supply line, then connect the
gas supply piping to the steam generator gas valve piping. In order to
protect the automatic gas control valve from condensation, the drip leg
should be close to the SteamCraft 10 gas connection.
5. If natural gas pressure exceeds 14" water column, a pressure regulating valve must
be installed in the gas supply plumbing to reduce the pressure to within the limits
specified in Gas Supply Requirements, on page 10.
6. If LP gas is supplied, use a gas pipe joint compound which is resistant to
LP gas. Refer to Figure 2-2 and note the pressure limit specified for LP
gas.
Leak-Testing Gas
Supply Lines
The gas lines and burner control connections should be inspected for proper
installation, and tested for leaks and proper operation:
•
At Initial Installation
•
As part of regular maintenance procedures.
• As the first step in troubleshooting.
• After service or repair, the components affected should be inspected and
tested for leaks and proper operation.