Vanguard Heating VSGF-28PTE - Manual (Page 13)

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INSTALLATION
Continued
Installation Items Needed
Before installing fireplace, make sure you have
the items listed below.
• external regulator (supplied by installer)
• piping (check local codes)
• sealant (resistant to propane/LP gas)
• equipment shutoff valve *
• test gauge connection *
• sediment trap (optional)
• tee joint
• pipe wrench
* 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 30.
For propane/LP units, the installer must supply
an external regulator. 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 pres-
sure, heater regulator damage could occur. Install
external regulator with the vent pointing down
as shown in Figure 17. Pointing the vent down
protects it from freezing rain or sleet.
CAUTION: Use only new,
black iron or steel pipe. Inter-
nally-tinned copper tubing may
be used in certain areas. Check
your local codes. Use pipe of
1/2" diameter or greater to allow
proper gas volume to fireplace.
If pipe is too small, undue loss
of volume will occur.
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 fireplace (see Figure 18).
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.
Check your building codes for any special re-
quirements for locating equipment shutoff valve
to fireplaces.
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 fireplace 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 18. Locate sedi-
ment trap where it is within reach for cleaning.
Install in piping system between fuel supply and
fireplace. Locate sediment trap where trapped
matter is not likely to freeze. A sediment trap traps
moisture and contaminants. This keeps them from
going into fireplace gas controls. If sediment trap
is not installed or is installed wrong, fireplace may
not run properly.
Pipe Tee
Nipple Cap Joint
Figure 17 - External Regulator with Vent
Pointing Down
Propane/LP
Supply Tank
External
Regulator
Vent
Pointing
Down
Figure 18 - Gas Connection
* Purchase the optional CSA design-certified
equipment shutoff valve from your dealer. See
Accessories, page 30.
** Minimum inlet pressure for purpose of input
adjustment.
Natural Gas
From Gas Meter
(5" w.c. to 10.5" w.c.
Pressure
Propane/LP
From External
Regulator (11" w.c.**
to 14" w.c.
Pressure)
3" Minimum
Sediment Trap
CSA Design-Certified
Equipment Shutoff Valve
With 1/8" NPT Tap*