17
101308
Tee Joint
Pipe
Nipple
Cap
3" Minimum
Sediment
Trap
Gas
Regulator
From
Gas Meter
(5" W.C.** to
10.5" W.C.
Pressure)
A.G.A. Design-Certified
Manual Shutoff Valve
With 1/8" NPT Tap*
Approved Flexible
Gas Hose (if allowed
by local codes)
WARNING ICON
G 001
CAUTION
Avoid damage to regulator. Hold gas regulator with wrench when
connecting it to gas piping and/or fittings.
Figure 13 - Gas Connection
* Purchase the optional A.G.A. design-certified manual shutoff valve from your dealer.
See Accessories, page 33.
** Minimum inlet pressure for purpose of input adjustment.
INSTALLING
Continued
WARNING ICON
G 001
WARNING
Never use an open flame to check for a leak. Apply a mixture of
liquid soap and water to all joints. Bubbles forming show a leak.
Correct all leaks at once.
WARNING ICON
G 001
WARNING
Test all gas piping and connections for leaks after installing or
servicing. Correct all leaks at once.
CHECKING GAS CONNECTIONS
Continued
Pressure Testing gas Supply Piping system
Test Pressures In Excess Of 1/2 PSIG
1. Disconnect heater and its individual manual shutoff valve from gas supply
piping system. Pressures in excess of 1/2 psig will damage heater regulator.
2. Cap off open end of gas pipe where manual shutoff valve was connected.
Summary of Contents for CF18N
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