Vanguard VI33NR VI33PR Owner's Operation And Installation Manual page 10

INSTALLATION
10
Installation Clearances (Cont.)
Installing Gas Piping To Fireplace Location
INSTALLATION
Continued
Mantel Clearances for Insert Installation
If there is a mantel above masonry fireplace, you must meet
minimum clearance between mantel shelf and top of fireplace
opening (see Figure 12).
NOTICE: Surface temperatures of adjacent walls and
mantels become hot during operation. Walls and
mantels above the firebox may become hot to the
touch. If installed properly, these temperatures meet
the requirements of the national product standard.
Follow all minimum clearances shown in this manual.
NOTICE: If your installation does not meet the minimum
clearances shown, you must do one of the following:
• raise the mantel to an acceptable height
• remove the mantel
Wall board or facing
material (above
fireplace) may be of
combustible material,
including decorative
mantel ornaments or
other similar projec-
tions off of the facing
material.
Fireplace
Fireplace Insert
Wire-mesh
Screen
Figure 12 - Minimum Mantel Clearances for Fireplace Insert
Installation
For more information, visit www.desatech.com
For more information, visit www.desatech.com
Mantel Shelf
10"
8"
6"
1 /2
2 "
Noncombustible
Material May
Project Off this
Surface above
the Insert Hood
13" 16" 19" 21"
Note: All vertical
measurements are
from top of insert hood
Supplied Hood Must
opening to bottom
Be Used at All Times
of mantel shelf.
INSTALLING GAS PIPING TO FIREPLACE
LOCATION
WARNING: A qualified service person must con-
nect fireplace Insert to gas supply. Follow all local
codes.
CAUTION: Never connect propane/LP heater di-
rectly to the propane/LP supply. This heater requires an
external regulator (not supplied). Install the external
regulator between the heater and propane/LP supply.
WARNING: Never connect natural gas fireplace
insert to private (non-utility) gas wells. This gas is
commonly known as wellhead gas.
Installation Items Needed
Before installing fireplace insert, 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
• tee joint
• pipe wrench
• approved flexible gas line with gas connector (if allowed by lo-
cal codes) (not 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 30.
For propane/LP units, the installer must supply an external regula-
tor. 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
pointing down as shown in Figure 13, page 11. 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
fireplace insert. If pipe is too small, undue loss of
volume will occur.
111285-01B