Operating instructions

Connecting The Gas Piping
Refer to Figure 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. Flexible gas connectors must never breach any boiler
openings.
Figure 12 - GAS PIPING AT BOILER
Manifold
Automatic Ground
Gas Valve, Joint
Floor Line
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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
vane and boiler controls.
4. Install a sediment trap upstream of gas controls.
5. Use two pipe wrenches when making the connection to the gas
vane to keep it from turning.
6. Install manual shut-offvaNe in vertical pipe about 5 feet above
floor.
7. Tighten all joints securely.
8. Propane gas connections should only bemade by a licensed
propane installer.
Never use a match or open flame to test for leaks.
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-offvalve. 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.
Check Gas Supply
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 Gas Table 8 for the proper size.
Be sure your gas line complies with local codes and gas company
requirements.
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
216,000 189,000 393,000
145,000 129,000 267,000
121,000 103,000 217,000
The length of pipe or tubing should be measured j?om the gas meter or propane
second stage regulatoc
The boiler and its individual shutoffvaNe must be disconnected
from the gas supply piping system during any pressure testing of that
system at test pressures in excess of 1/2Psig (3.5 kPa).
The boiler must be isolated from the gas supply piping system by
closing its individual manual shutoff vane during any pressure test-
ing of the gas supply piping system at test pressures equal to or less
than 1/2Psig (3.5 kPa).