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104246
VENT-FREE NATURAL GAS HEATER
®
Marking Screw Locations
1. Tape mounting bracket to wall where
heater will be located. Make sure
mounting bracket is level.
Model VN2550ITB
Model VN1800ITB
Figure 8 - Mounting Bracket Clearances
2. Mark screw locations on wall (see Fig-
ure 8).
Note:
Only mark last hole on each end
of mounting bracket. Insert mounting
screws through these holes only.
3. Remove tape and mounting bracket
from wall.
18 3/4"
Min.
13"
Min.
16"
Adjoining Wall
Only Insert Mounting
Screws Through Last
Hole On Each End
Floor
WARNING: Maintain minimum
clearances shown in Figure 8. If
you can, provide greater clear-
ances from floor and joining wall.
Methods For Attaching
Mounting Bracket To Wall
Only use last hole on each end of mounting
bracket to attach bracket to wall. These two
holes are 16 inches apart from their centers.
Attach mounting bracket to wall in one of
two ways.
1. Attaching to wall stud
2. Attaching to wall anchor
Attaching To Wall Stud: This method pro-
vides the strongest hold. Insert mounting
screws through mounting bracket and into
wall studs.
INSTALLING HEATER TO
WALL
Mounting Bracket
Locate mounting bracket in heater carton.
Remove mounting bracket from heater carton.
Figure 7 - Removing Front Panel Of Heater
Removing Front Panel Of Heater
1. Remove two screws near bottom cor-
ners of front panel.
2. Lift straight up on grill guard until it stops.
Grill guard will slide up about 1/4".
3. Pull bottom of front panel forward, then
down.
Figure 6 - Mounting Bracket
INSTALLATION
Continued
Figure 5 - Attaching Thermostat Sensing
Bulb
Thermostat
Sensing
Bulb
THERMOSTAT SENSING
BULB
The thermostat sensing bulb has been placed
inside the heater for protection during shipping.
Locating Thermostat Sensing
Bulb
1. Remove front panel of heater (see Fig-
ure 7).
2. Locate thermostat sensing bulb just
under the burner assembly.
IMPORTANT:
Attach thermostat sensing bulb
to the back of heater for proper operation.
Attaching Thermostat Sensing
Bulb
1. Remove thermostat sensing bulb from
holders inside heater. Route through
slot opening in bottom of heater.
2. Place clamp on thermostat sensing bulb
as shown in Figure 5. Clamp is pro-
vided in hardware package.
3. Snap clamp into upper mounting hole
as shown in Figure 5. Mounting hole is
located on lower left edge on back of
heater. Make sure the thermostat sens-
ing bulb is pointing up.
Attaching To Wall Anchor: This method
allows you to attach mounting bracket to
hollow walls (wall areas between studs) or
to solid walls (concrete or masonry).
Decide which method better suits your needs.
Either method will provide a secure hold for
the mounting bracket.
Clamp
16"
18 3/4"
Min.
9 1/4"
Min.
Adjoining Wall
Only Insert Mounting
Screws Through Last
Hole On Each End
Floor