Thermostat Installation - COZY CDV142E Owner's Manual

IMPORTANT: The vent tubes are factory equipped for walls
5 to 9 inches thick only. For wall thicknesses up to 24 inches,
follow the instructions packed with the appropriate factory Vent
Extension Kits.
FURNACE MOUNTING (Figure 5)
Set the furnace body against the wall, legs on the floor, with the vent
tubes extending through the spacer plate.
Fasten the furnace to the wall through holes at the top and bottom
of the support legs using the four (4) #3 round headed (long) screws
provided.
Push the air inlet shield on from the exterior side of the wall. Rotate
the air inlet shield until the notches on the end of the tube are
straddling the standoff tabs on the mounting spacer plate. Trim the
air inlet shield flush with the exterior of the wall. Never crimp the vent
tubes or force them to fit.
NOTE: Do not trim flue extension or air inlet collar.
INSTALL VENT CAP
Outside, place a single strip of mastic (provided) around the back
flange of the vent cap. Figure 6 Install the vent cap by inserting it into
the air inlet tube and over the vent tube.
Important: The top of the vent cap is embossed "TOP". Install
it in the correct position to prevent water from entering the wall.
Level the vent cap and attach it to the outside wall with four (4) #8
roundheaded (long) screws. Figure 6
If the wall surface is not flat (shiplapped siding, etc.) or less than
5 inches thick, use a Thin Wall Collar Kit (9307) or, build up a flat
surface with wood strips. Do not tilt or bend the cap to fit uneven
surfaces. The vent cap flange must be tight against the wall to
prevent rain or wind penetration. Use standard caulking compound if
required (not provided).
For brick, masonry or plaster walls, it may be necessary to use lag
screws or expanding anchor bolts, which are not furnished with the
furnace.
When the vent cap is to be installed on vinyl siding, or a projection
within 6 inches of any side that could block the air inlet, the entire
vent should be supported away from the wall at least the distance of
the projection. A 2" x 4" frame, with outside dimensions that match
the overall dimensions of the mounting plate, is recommended. The
2" x 4" frame protects vinyl siding from possible damage. Seat and
paint all joints. The wall depth plus the additional 2" x 4" frame depth
should not exceed a total depth of 13 inches.

Thermostat Installation

WALL MOUNTING
1. Use Cozy's thermostat 74592 or any millivolt thermostat.
2. If an existing thermostat is being replaced and is in a
satisfactory location and the wiring is in good condition,
use existing wiring. If in doubt, use new wiring.
3. If a new location is chosen or if this is a new installation,
the thermostat wire must first be run to the location
selected. All wiring must agree with local codes and
ordinances. These instructions cover bringing the wire
down from the attic, but it can be run from a basement
or crawl space using similar methods.
(Sold Separately)
FIGURE 5
FIGURE 6
4. Before drilling a hole in the wall at the selected location,
drive a small finishing nail through the ceiling in the
comer of the wall and ceiling above the thermostat
location. Pull the nail out and push a small stiff wire
through the hole so it can be found in the attic. Drill a
1/2-inch hole through the ceiling wall plate.
5. Probe for obstructions in the partition. Then, drill a
1/2 inch hole through the wall at the selected location for
the thermostat.
6. From the attic, feed the thermostat wire or a stiff wire
through the wall until even with thermostat location.
7. Snag the thermostat wire through the wall so that 6
inches of wire protrudes.
8. Route wire to the furnace leaving enough excess wire to
make the connections at the gas valve.
DIRECT VENT GRAVITY GAS WALL HEATER
EXTERIOR WALL
WITH VENT CAP
TOP
9