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104408
VENT-FREE NATURAL GAS COMPACT FIREPLACE
VMH10TNA
®
CONNECTING TO GAS
SUPPLY
WARNING: A qualified ser-
vice person must connect fire-
place to gas supply. Follow all
local codes.
IMPORTANT:
Check gas line pressure be-
fore connecting fireplace to gas line. Gas
line pressure must be no greater than 14
inches of water. If gas line pressure is higher,
fireplace regulator damage could occur.
Installation must include a manual 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 22).
IMPORTANT:
Install main gas valve
(manual shutoff valve) in an accessible
location. The main gas valve is for turning
on or shutting off the gas to the appliance.
We recommend that you install a sediment
trap in supply line as shown in Figure 22.
Locate sediment trap where it is within
reach for cleaning. Install in piping system
between fuel supply and heater. Locate sedi-
ment trap where trapped matter is not likely
to freeze. A sediment trap traps moisture
and contaminants. This keeps them from
going into fireplace controls. If sediment
trap is not installed or is installed wrong,
fireplace may not run properly.
WARNING: Never connect
fireplace to private (non-utility)
gas wells. This gas is commonly
known as wellhead gas.
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" or greater diameter to al-
low proper gas volume to fire-
place. If pipe is too small, un-
due loss of pressure will occur.
CAUTION: Use pipe joint seal-
ant that is resistant to liquid pe-
troleum (LP) gas.
Attaching Wood Base to Solid
Floor
For attaching base to solid floors (concrete
or masonry)
Note:
Floor anchors and mounting screws
are in hardware package. The hardware
package is provided with fireplace.
1. Drill holes at marked locations using
5/16" drill bit. For solid floors (concrete
or masonry), drill at least 1" deep.
2. Fold floor anchor as shown in Figure 21.
3. Insert floor anchor (wings first) into
hole. Tap anchor flush to floor.
4. Insert mounting screws through base
and into floor anchors.
5. Tighten screws until base is firmly fas-
tened to floor.
Figure 21 - Folding Anchor
INSTALLATION
Continued
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 fireplace valves.
* Purchase the optional A.G.A. design-certified manual shutoff valve from your dealer.
See Accessories, page 27.
A.G.A. Design-Certified Manual
Shutoff Valve With 1/8" NPT Tap*
3" Minimum
From Gas
Meter (5"
W.C. to
10.5" W.C.
Pressure)
Approved Flexible
Gas Line
Pipe Nipple Cap Tee Joint
Sediment Trap
Figure 22 - Gas Connection