CHECK GASSUPP_
The gas pipe to your boiler must be the correct size for the length of the run and for the total Btu per hour input of all gas utilization equipment connected to it. See Fig. 12 for the proper size. Be sure your gas line complies with local codes and gas company requirements.
The boiler and its individual shutoff valve must be disconnected from the gas supply piping system during any pressure testing of that system at test pressures in excess of I/2psig (3.5 kPa).
The boiler must be isolated from the gas supply piping system by closing its individual manual shutoff valve during any pressure testing of the gas supply piping system at test pressures equal to or less than 1/zpsig (3.5 kPa).
CONNECTING THE GAS PIPING
Refer to Fig. 13 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.
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
2.Use pipe joint compound suitable for LP gas on male threads only
3.Use ground joint unions.
4.Install a sediment trap upstream of gas controls.
5.Use two pLpe wrenches when making the connection to the gas valve to keep it from turning.
6.Install a manual
7 Tighten all joints securely
CHECKING THE GAS PIPING
Upon completion of piping, check immediately for gas leaks Open the manual
soap suds (or a liquid detergent) to each joint. Bubbles forming indicate a leak CORRECT EVEN THE SMALLEST LEAK AT ONCE
WARNING
Never use a match or open flame to test for leaks.
NATURAL GAS
Pipe Capacity - BTU per Hour Input
Length ofIncludes Fittings Pipe - Ft.
V2"3/4"1"11/4"
2092,000 190,000 350,000 625,000
4063,000 130,000 245,000 445,000
6050,000 105,000 195,000 365,000
The length of pipe of tubing should be measured from the gas meter
10
