Form 44201440
23
Oct 2018
GAS CONNECTIONS AND REGULATION
Use an approved flexible gas connector
of 24”
minimum length when installing the heater with
flexible hanging methods as described in Section 12.0).
IMPORTANT BEFORE CONNECTING THE GAS TO THE HEATER
a)
Connect to the supply tank or manifold in accordance with state or local building codes. Authorities having
jurisdiction should be consulted before the installation is made. (In Canada, refer to the latest edition of CSA
B149.1, Natural Gas and Propane Installation Code.)
b)
Check that the gas fuel on the burner rating plate matches the fuel for the application.
c)
Check that the gas supply piping has the capacity for the total gas consumption of the heaters and any other
equipment connected to the line.
d)
Check that the calculated supply pressure with all gas appliances and heaters operating will not drop below
the minimum supply pressure required for these heaters. See table below.
e)
All gas supply lines must be located in accordance with the required clearances to combustibles from the
heater as listed on the clearances label of the heater and Section 4.0) of this manual.
f)
Pipe joint compounds must be resistant to the action of liquefied petroleum gases.
g)
The heater will move when installed with flexible hanging methods, see Section 12.0). Use an approved
flexible connector for connections between the rigid piping and the heater. An approved shut off valve should
be installed within 6ft of the heater.
GAS PRESSURE TABLE
GAS TYPE
MANIFOLD PRESSURE
SUPPLY PRESSURE
High
Low (2-stage only)
Minimum*
Maximum
Natural Gas N7
6.0
”
W.C.
2.8
” W.C.
7” W.C.
14” W.C.
Propane Gas L7
11
.0” W.C.
5
.0” W.C.
11.5
” W.C.
14” W.C.
Summary of Contents for SGL35-L7
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