111826-05
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11
INSTALLATION
Continued
INSTALLATION
Installing Heater Assembly (Cont.)
Connecting to Gas Supply
WARNING: This appliance requires a 3/8" NPT
(National Pipe Thread) inlet connection to the pres-
sure regulator.
WARNING: A qualified service person must con-
nect heater to gas supply. Follow all local codes.
CAUTION: Never connect propane/LP fireplace
directly to the propane/LP supply. This heater requires
an external regulator (not supplied). Install the ex-
ternal regulator between the heater and propane/LP
supply.
WARNING: Never connect natural gas fireplace to
private (non-utility) gas wells. This gas is commonly
known as wellhead gas.
Installation Items Needed
Before installing heater, make sure you have the items listed be-
low.
• external regulator (supplied by installer)
• piping (check local codes)
• sealant (resistant to propane/LP gas)
• equipment shutoff valve *
• test gauge connection *
• sediment trap
• tee joint
• pipe wrench
• approved flexible gas line with gas connector (if allowed by local
codes) (provided)
* A CSA design-certified equipment shutoff valve with 1/8" NPT
tap is an acceptable alternative to test gauge connection. Purchase
the optional CSA design-certified equipment shutoff valve from
your dealer. See
Accessories
, page 27.
For propane/LP units, the installer must supply an external regu-
lator. The external regulator will reduce incoming gas pressure. You
must reduce incoming gas pressure to between 11 and 14 inches of
water. If you do not reduce incoming gas pressure, heater regulator
damage could occur. Install external regulator with the vent point-
ing down as shown in Figure 12. Pointing the vent down protects
it from freezing rain or sleet.
CAUTION: Use only new, black iron or steel pipe.
Internally-tinned copper tubing may be used in cer-
tain areas. Check your local codes. Use pipe of 1/2"
diameter or greater to allow proper gas volume to
heater. If pipe is too small, undue loss of volume will
occur.
CONNECTING TO GAS SUPPLY
Installation must include an equipment shutoff valve, union, and
plugged 1/8" NPT tap. Locate NPT tap within reach for test gauge
hook up. NPT tap must be upstream from heater (see Figure 13
page 12, depending on your model).
IMPORTANT:
Install 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 NPT threads. This will
prevent excess sealant from going into pipe. Excess sealant in pipe
could result in clogged heater valves.
WARNING: Use pipe joint sealant that is resistant
to liquid petroleum (LP) gas.
We recommend that you install a sediment trap in supply line as
shown in Figure 13 page 12, depending on your model. Locate
sediment trap where it is within reach for cleaning. Install in pip-
ing system between fuel supply and heater. Locate sediment trap
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 wrong, heater
may not run properly.
CAUTION: Avoid damage to gas control. Hold gas
control with wrench when connecting it to gas piping
and/or fittings.
Control Valve to Supply Tank-Vanguard BT
GRH/PV 019B
Propane/LP
Supply Tank
External Regulator
Figure 12 - External Regulator With Vent Pointing Down
Vent Pointing Down
