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INSTALLING YOUR FURNACE
Thermostat Installation
(Sold Separately)
Use Cozy thermostat 74592 or any millivolt thermostat.
Current to the thermostat is supplied by the pilot generator.
Do not connect it to electricity. Anticipator settings are not
required.
1. Use of existing wire is acceptable if it is in a satisfactory
location and the wire is in good condition. When in doubt,
use new wiring.
2. If a new location is chosen or if this is a new installation,
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 may be run from a basement or crawl space
using similar methods.
3. Before drilling a hole in the wall at the selected location,
drive a small finish nail through the ceiling in the corner 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 ½&inch hole through
the ceiling wall plate.
4. Probe for obstructions in the partition. Then, drill a ½-inch
hole through the wall at the selected location for
the thermostat.
5. From the attic, feed the thermostat wire through the wall
until even with the thermostat location.
6. Snag the thermostat wire through the hole and pull the
wire through the hole in the wall so that 6&inches of the
wire protrude.
7. Route wires to the furnace.
8. Never use nails or staples across the thermostat wires.
CAUTION: Label all wires prior to disconnection when
servicing controls. Wiring errors can cause improper
and dangerous operation. Verify proper operation after
servicing. Refer to installation instructions packed in
the thermostat carton if you have any doubt about the
above procedures.
WALL-MOUNTED THERMOSTAT INSTALLATION
1. To remove the thermostat cover, squeeze both sides
and lift.
2. Connect the thermostat wires to the terminal screws on
the base of thermostat.
3. Push any excess wire back through hole in the wall and
plug hole with insulation to prevent drafts
from affecting thermostat operation.
4. Be sure to level the thermostat for best appearance.
Fasten thermostat base to the wall through mounting
holes with screws provided.
5. Replace the thermostat cover.
6. Do not run wire in any location where it might be
damaged. Avoid splicing the thermostat wires unless the
spliced wires are properly cleaned, soldered and taped.
20
COZY TOP VENT GRAVITY GAS WALL HEATER
7. Use the 18-gauge wire as supplied for a maximum
length of 20-feet. If a longer length is needed, use
16-gauge wire to a maximum length of 25-feet.
8. Connect the thermostat wires to the control valve as
shown in Figure 17.
FIGURE 17 – THERMOSTAT WIRING
FACE PANEL-MOUNTED THERMOSTAT INSTALLATION
1. Before removing the face panel, disconnect the
thermostat wires at the gas valve.
2. Locate the knockout on the right side of the furnace
to mount the thermostat. Remove the knockout by
tapping it lightly with a screwdriver Figure 18 It will
also be necessary to cut a 1/2 inch hole in the inside
panel insulation for clearance to the knockout.
3. Cut the thermostat wire to 56 inches.
4. Connect the thermostat wires to terminal screws on
the thermostat base.
5. Feed the thermostat wires through the knockout and
route them through the metal clip to the gas
valve.
6. Mount the thermostat to the side of the cabinet with
screws provided.
7. Replace the thermostat cover.
8. Connect the thermostat wires to the control valve as
shown in Figure 17.
FIGURE 18 – THERMOSTAT MOUNTING PANEL
IMPORTANT: Keep the thermostat wires away from the
combustion chamber.
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