Vanguard VN18A Safety Information And Installation Manual page 11

INSTALLATION
Continued
MOUNTING HEATER TO FLOOR
Mounting Base Feet to Heater
1. Lay heater cabinet on its back on a table
with the heater bottom overhanging the table
edge.
2. Align holes in base foot with mounting holes
on bottom of cabinet (see Figure 13).
3. Secure base foot to heater using sheet metal
screws.
4. Repeat for other side.
Mounting Base Feet to Floor (Where
required by local code)
1. Remove front cover (see Removing Front
Panel of Heater, page 8).
2. Position heater with base feet in desired loca-
tion. Mark holes for drilling. Remove heater
with base.
3. For carpeted floors, make a small cut with a
sharp knife at marked locations prior to drill-
ing. If mounting base to a wood floor, drill 1/8
inch diameter hole, 3/4 inch deep. (Do not use
anchors in wood floors).
If mounting base to a concrete floor, drill
with 1/4 inch diameter concrete drill bit, 1
inches into floor. Insert anchors completely
into holes.
4. Reposition heater with base feet over holes.
Secure base to floor with wood screws. See
Figure 13.
Base Foot
Sheet Metal Screw
Figure 13 - Installing Base Feet
113052-01D
CONNECTING TO GAS SUPPLY
requires a 3/8" NPT (National
Pipe Thread) inlet connection to
the pressure regulator.
WARNING: A qualified service
person must connect heater to gas
supply. Follow all local codes.
never connect heater to private (non-
utility) gas wells. This gas is com-
monly known as wellhead gas.
IMPORTANT: For natural gas, check gas line
pressure before connecting heater to gas line. Gas
line pressure must be no greater than 10.5 inches of
water. If gas line pressure is higher, heater regula-
tor damage could occur.
gas, never connect heater di-
rectly to the propane/LP supply.
/
3
8
This heater requires an external
regulator (not supplied). Install
the external regulator between the
heater and propane/LP supply.
For propane/LP gas, the installer must supply an
external regulator. The external regulator will
reduce incoming gas pressure. You must reduce
Wood
incoming gas pressure to between 11 and 14 inches
Screw
of water. If you do not reduce incoming gas pres-
sure, heater regulator damage could occur. Install
the external regulator with the vent pointing down
as shown in Figure 14. Pointing the vent down
protects it from freezing rain or sleet.
Propane/LP
Supply Tank
Figure 14 - External Regulator With Vent
www.desatech.com
WARNING: This appliance
WARNING: For natural gas,
CAUTION: For propane/LP
Pointing Down
External
Regulator
Vent
Pointing
Down
11