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B. CONNECTING THE GAS PIPING
Refer to Fig.12 for the general layout at the boiler. It shows the basic fittings you will need.
The gas line enters the boiler from the right side jacket panel. The boiler may receive the gas
supply pipe through the left side, or rear jacket panel by relocating the gas valve connector
and pipe assembly. The boiler is equipped with a /z NPT connection on the gas valve for
supply piping. The following rules apply:
1. Use only those piping materials and joining methods listed as acceptable by the authority
having jurisdiction, or in the absence of such requirements, by the National Fuel Gas
Code, ANSI Z223.1- latest revision. In Canada, follow the CSA- B 149.1 and .2
Installation Codes for Gas Burning Appliances and Equipment.
2. Use pipe joint compound suitable for liquefied petroleum gas on male threads only.
3. Use ground joint unions.
4. Install a sediment trap upstream of gas controls.
5. Use two pipe wrenches when making the connection to the gas valve to keep it from
turning.
6. Install a manual shutoff valve in the vertical pipe about 5 feet above floor.
7. Tighten all joints securely.
8. Propane gas connections should only be made by a licensed propane installer.
9. Two stage regulation should be used by the propane installer.
10. Propane gas piping should be checked out by the propane installer.
C. CHECKING THE GAS PIPING
After all connection have been made, check immediately for leaks. Open the manual shutoff
valve. Test for leaks by applying soap suds (or a liquid detergent) to each joint. Bubbles forming
indicate leak. CORRECT EVEN THE SMALLEST LEAK AT ONCE.
WARNING
NEVER USE A MATCH OR OPEN FLAME TO TEST FOR LEAKS.
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TABLE 3 GAS PIPE SIZES