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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 1/2" 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 CAN/CGA
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 TIlE SMALLEST
LEAK AT ONCE.
WARNING
NEVER USE A MATCH
OR OPEN FLAME TO TEST FOR LEAKS.
Length of
Pipe
-
Ft.
20
40
60
Length of
Pipe - Ft.
20
40
60
* Outside diameter
1/2"
92,000
63,000
50,000
Copper
Tubing*
5/8"
3/4"
131,000
216,000
90,000
145,000
72,000
121,000
TABLE 3
GAS PIPE SIZES
NATURAL
GAS
Pipe Capacity - BTU Per Hour Input Includes Fittings
314"
1"
190,000
350,000
130,000
245 000
105,000
195 000
PROPANE
GAS
Pipe Capacity - BTU Per Hour Input Includes Fittings
Iron Pi _e
1/2"
189 000
129 000
103 000
1 1/4"
625,000
445,000
365,000
3/4"
393,000
267,000
217,000
26
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