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7. Connect the inducer leads from the main wiring harness
to the inducer motor harness.
8. Attach the vent elbow to the inducer outlet. Torque the
vent elbow clamp 15 lb.−in.
Install J−Box and Main Harness
NOTE: If the J−Box cover and bracket were removed as part
of the collector box replacement, install the J−Box and bracket
as shown below:
1. Insert grommet for main harness in the slot in the blower
shelf.
2. Align the door switch to the blower shelf.
3. Install the screw to secure the door switch.
4. Install the door bracket to the front edge of the blower
shelf.
5. Connect the field wiring from the factory wiring and
attach the ground wire to the green ground screw on the
J−Box bracket.
6. Attach the J−Box cover to the J−Box bracket
7. Install the screw to secure the J−Box cover to the
bracket.
8. Connect the factory wires to the main limit switch.
Pressure Switch Installation
NOTE:
There are two types of pressure switches. The
modulating pressure switch assembly has three pressure
switches. Two are side−by−side with the third switch mounted
to the back of one of the switches.
All other furnaces have two pressure switches mounted
back−to−back.
The tube for the front pressure switch connects the switch to
the port on the collector box. The tube for the switch mounted
on the back connects the switch to the port on the inducer
assembly.
1. Connect the wires to the back pressure switch.
2. Connect the tube for the back pressure switch to the
inducer assembly. (PSC only)
3. Connect the tube for the front pressure switch to the port
on the collector box.
4. Attach the pressure switch assembly to the inducer.
5. Modulating − connect the pressure switch harness to
the main wiring harness
Non−Modulating − attach the individual wires to the
pressure switch.
Install the Condensate Trap and Drain
NOTE:
If the condensate trap is removed, a new gasket
between the trap and collector box is required. Verify the
condensate trap gasket was replaced as outlined in "Collector
Box Installation"
1. Align the trap with the drain outlet on the collector box.
2. Secure the trap to the collector box with the screw.
3. Connect the condensate trap relief tube from collector
box port and insert the tube into the molded retainer clips
on the inducer housing.
4. Insert the condensate drain elbow through the casing
until it is properly seated. Or, connect the drain elbow to
the drain extension pipe and route the pipe behind the
inducer.
5. Connect the drain elbow to the condensate trap.
NOTE: If condensate has a heat pad attached to the trap,
trace the wires for the pad back to the connection point and
connect the wires for the heat pad.
443 06 5102 01
Vent Pipe Installation
1. Orient the vent elbow in the required location. Torque the
vent elbow clamp 15 lb−in.
2. Insert the vent pipe through the furnace casing and into
the outlet of the inducer vent elbow.
3. Tighten the clamp for the vent pipe at vent elbow on the
inducer assembly 15 lb−in.
4. Align the remaining vent pipe system to the vent pipe in
the furnace casing.
5. If the pipe was cut, solvent cement the pipes as required
for the type of material used.
6. Tighten both clamps at the vent pipe support attached to
furnace casing 15 lb-in.
Unit Checkout
FIRE OR EXPLOSION HAZARD
Failure to follow this warning could result in personal injury,
death, and/or property damage.
Never purge a gas line into a combustion chamber. Never
test for gas leaks with an open flame. Use a commercially
available soap solution made specifically for the detection of
leaks to check all connections. A fire or explosion may result
causing property damage, personal injury or loss of life.
RISQUE D'EXPLOSION ET D'INCENDIE
Le non−respect des avertissements de sécurité pourrait
d'entraîner des blessures graves, la mort ou des dommages
matériels.
Ne jamais utiliser une flamme nue por vérifier la présence
des fuites de gaz. Pour la vérification de tous les joints,
utiliser
fabriquée spécifiquement pur la détection des fuites de gaz.
Un incendie ou une explosion peut entraîner des dommages
matériels, des blessures ou la mort.
1. Set thermostat to "OFF".
2. Turn on power at external disconnect, fuse or circuit
breaker.
3. Turn on gas at external shut−off or gas meter.
4. Check for gas leaks with a commercially available soap
solution made specifically for the detection of leaks to
check all connections.
5. Manually close blower door switch.
6. Initiate component test through circuit board by referring
to "Component Test" on status code label on blower
access door for complete test sequence information.
7. If any status codes are flashed, refer to status code label
on unit blower door.
8. Turn thermostat fan switch to "ON", "Continuous" or
jumper R to G terminals at furnace control board.
9. Check for air leakage around cell panel. It may be
necessary to remove heat exchanger assembly and top
gasket between cell panel and furnace casing top plate.
Re−install and re−check for blower air leaks.
10. Remove jumper(s) or set thermostat fan to "Auto" or
"OFF."
11. Release blower door switch.
12. Install blower access door.
Specifications subject to change without notice.
WARNING
!
WARNING
!
plutôt
une
solution
savonneuse
commerciale
5
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