Venting - Bryant 926TC Installation, Start-Up, Operating And Service And Maintenance Instructions

Two-stage, non-communicating, variable 25-speed, ecm multipoise, condensing gas furnace with intelisense
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926TC: Installation, Start-up, Operating and Service and Maintenance Instructions
Fig. 39 – Thermostat Connection for Two-Stage Furnace and A/C &
Heat Pump
Notes for thermostat drawings:
1. Thermostat output signals may vary. Consult thermostat installation
instructions for more information.
2. Refer to outdoor equipment Installation Instructions for additional
information and setup procedure.
3. Configure the thermostat for air conditioner installations. Refer to
thermostat instructions.
4. Configure thermostat for HYBRID HEAT® dual fuel operation.
Refer to thermostat instructions.
5. Heat pump MUST have a high pressure switch for HYBRID
HEAT® dual fuel applications.
6. For Single-stage AC or HP, configure thermostat for single-stage
compressor operation. Refer to thermostat instructions.
7. NO connection should be made to the furnace HUM terminal when
using a thermostat with a 24 volt humidifier output.
Manufacturer reserves the right to change, at any time, specifications and designs without notice and without obligations.
8. For Two-Stage AC or HP, thermostat may be configured for
two-stage compressor operation, allowing the thermostat to control
staging, or thermostat may be configured for single stage operation,
allowing furnace control to control staging. Refer to note 10 and
thermostat instructions.
9. Optional connection - See Sequence of Operations, Heating
adaptive mode for additional information. If two-stage heating
thermostat output is connected to W/W1 and W2 on Modulating or
Two-stage furnace control, Heating Thermostat Type (Htt) setting
on furnace control should be set to "2St" to allow thermostat to
control furnace staging.
10. For Two-stage outdoor equipment, connection is Optional - See
Cooling sequence of operations (adaptive mode) for additional
information. If two-stage HP/cooling thermostat is connected to Y1
and Y/Y2 on Modulating or Two-stage furnace control board,
Cooling Thermostat Type (Ctt) (setting on furnace control) should
be set to "2St" to allow thermostat to control outdoor unit staging.
11. For Single-stage outdoor equipment, connect thermostat HP or AC
output to Y/Y2 of furnace control.
12. Configure Dehumidify function to remove 24 VAC from Dehum
terminal on a demand to dehumidify. Consult thermostat
installation instructions for more information.
A230154
13. Thermostat terminal connection order on furnace control may vary-
reference furnace control labeling for designations.
14. Field installed jumper required for InteliSense™ installations using
single-stage AC or HP.
OPTIONAL VENTING BELOW THE FURNACE
The venting system may be positioned below the furnace ONLY IF the
factory accessory External Vent Trap Kit is used. The External Vent
Trap Kit is only approved for PVC/ABS DWV venting systems.
CAREFULLY FOLLOW THE INSTRUCTIONS PROVIDED WITH
THE EXTERNAL VENT TRAP KIT FOR LAYING OUT THE
VENTING SYSTEM AND THE DRAIN SYSTEM. The instructions
included with this furnace DO NOT APPLY to vent systems that are
located below the furnace.

VENTING

NOTE: Planning for the venting system should be done in conjunction
with planning for the ductwork, drainage, and furnace accessories, such
as air cleaners and humidifiers. Begin assembling the venting system
AFTER the furnace is set in place in the required orientation.
Venting for this furnace shall follow all Local codes for Category IV
A230155
venting systems. This furnace is CSA approved for venting with
PVC/ABS DWV venting systems. This furnace is also CSA approved
for venting with M&G DuraVent
polypropylene venting systems using single wall straight and flex, and
required fittings (elbows, reducers, increasers, connectors, adapters)
only.
NOTE: THESE INSTRUCTIONS DO NOT CONTAIN DETAILED
INSTALLATION
VENTING SYSTEMS. Refer to the polypropylene venting system
manufacturer's installation instructions for the polypropylene venting
system installation.
NOTE:
When using polypropylene venting systems, all venting
materials used, including the vent terminations, must be from the same
manufacturer.
29
NOTICE
!
R
PolyPro
R
or Centrotherm InnoFlue
INSTRUCTIONS
FOR
POLYPROPYLENE
R

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