21
GAS SupplY pIpING
*Outside diameter:
The length of pipe or tubing should be measured from the gas
meter or propane second stage regulator.
NATURAL GAS
Length of
Pipe - Ft.
Pipe Capacity - BTU Per Hour Input
Includes fittings
½"
¾"
1"
1¼"
20
92,000
190,000
350,000
625,000
40
63,000
130,000
245,000
445,000
60
50,000
105,000
195,000
365,000
PROPANE GAS
Length of
Pipe - Ft.
Pipe Capacity - BTU Per Hour Input
Includes fittings
Copper Tubing*
Iron Pipe
⅝"
¾"
½"
¾"
20
131,000
216,000
189,000
393,000
40
90,000
145,000
129,000
267,000
60
72,000
121,000
103,000
217,000
!
!
WARNING
Never use a match or open flame to test for leaks.
Figure #11
GAS PIPING AT BOILER
CONNECTING THE GAS PIPING
Refer to
Figure #11
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.
PRESSURE
GAS
NATURAL
PROPANE
MIN. SUPPLY
5" w.c.
11" w.c.
MAX. SUPPLY
14" w.c.
14" w.c.
MANIfOLD
3.5" w.c.
10" w.c.
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 B149.1 and .2 Installation Codes for
Gas Burning Appliances and Equipment.
2. All pipe compound must be resistant to
liquefied petroleum gas.
3. Install ground joint union in gas supply line
between shut-off valve and boiler controls.
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 manual shut-off valve in 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.
CHECKING THE GAS PIPING
Upon completion of piping, check right away for gas
leaks. Open the manual shut-off valve. Test for leaks
by applying soap suds (or a liquid detergent) to each
joint. Bubbles forming indicate a leak.
CORRECT
EVEN THE SMALLEST LEAK AT ONCE.
Summary of Contents for XEB-2
Page 36: ...85 Middle Rd Dunkirk NY 14048 ...
