17
Fig. 11 - Attaching Flexible Gas
Hose to Heater Gas Regulator
Fig. 12-A - External Regulator with
Vent Pointing Down For NG
Fig. 12-B - External Regulator
with Vent Pointing Down For LP
A CSA/AGA design-certified equipment shutoff
valve with
1/8-inch NPT tap is an acceptable
alternative to test gauge connection. Purchase
the optional CSA/AGA design-certified equipment
shutoff valve.
The installer must supply an external regulator for
liquid propane. The external regulator is provided
by the gas supplier for natural gas. The external
regulator will reduce incoming gas pressure. You
must reduce incoming gas pressure to minimum
allowable on rating label. If you do not reduce
Fig. 13 - Gas Connection
incoming gas pressure, heater regulator damage
could occur. Install external regulator with the vent
down as shown in Fig. 12. Pointing the vent down
protects it from freezing rain or sleet.
Installation must include equipment shutoff valve,
union, and plugged 1/8-in. NPT tap. Locate NPT
tap within reach for test gauge hook up. NPT tap
must be upstream from heater (see Fig. 13). To
prevent performance problems, Propane/LP tank
of less than 100 lb. capacity is not recommended.
IMPORTANT:
Install an equipment shutoff
valve in an accessible location. The equipment
shutoff valve is for turning on or shutting off the
gas to the appliance. Apply pipe joint sealant
lightly to male threads. This will prevent excess
sealant from going into pipe. Excess sealant in
pipe could result in clogged heater valves.
CAUTION:
Use only a new, black iron or
steel pipe. Internally-tinned copper tubing may
be used in certain areas. Check your local
codes. Use pipe 1/2-in. diameter or greater to
allow proper gas volume to heater. If pipe is too
small, loss of pressure will occur.
CAUTION:
Use pipe joint sealant that is
resistant to natural gas (NG) or liquid petroleum
(LP) gas.
We recommend that you install a sediment
trap in the supply line as shown in Fig.13.
Place sediment trap where it is within reach for
cleaning and where trapped matter is not likely
to freeze. A sediment trap traps moisture and
contaminants.
This keeps them from going into heater controls.
If sediment trap is not installed or is installed
incorrectly, heater may not run properly.
IMPORTANT:
Hold pressure regulator with
wrench when connecting it to gas piping
and/or fittings.
*Purchase the optional CSA design-certified
equipment shutoff valve from your dealer.
Fitting
Heating Gas
Regulator
Flexible Gas Hose
(if allowed by local codes)
Gas meter
External
Regulator
Vent Pointing
Down
Propane/LP
Supply Tank
External
Regulator
Vent Pointing
Down
3 in. Minimum
Test
Gauge
Connection *
Sediment
Trap
Tee Joint
Reducer
Bushing to
1/8 in. NPT
1/8 in. NPT
Plug Tap
Tee Joint
Pipe Nipple
Gap
3/8 in. NPT
Pipe Nipple
Ground Joint
Union
Equipment
Shutoff
Valve
Inlet Pipe From Gas
Meter (11 in. W. C. to
14 in. W. C. Pressure)
Summary of Contents for GLD2460R
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