To Next PageTo Next PageWhat to do if the Bryant 120/C problem repeats when using a jumper wire?
If the issue persists even with a jumper wire, it suggests that the thermostat isn't compatible with the furnace control. To resolve this, you can either install a ballast resistor, connect the Com24V thermostat terminal to the thermostat, or replace the thermostat.
How to check if Bryant 120/C Furnace control responds to thermostat signals?
To check if the Bryant Furnace control responds to thermostat signals, run the system through a low-heat, high-heat, or cooling cycle to observe its operation.
Why is there no 5-VDC at PL3-3 YELLOW (+) and PL3-2 GREEN (-) in my Bryant 120/C?
The absence of 5-VDC at PL3-3 YELLOW (+) and PL3-2 GREEN (-) indicates an open wire or a bad terminal on the YELLOW wire between the furnace control and the blower motor.
What to do if my Bryant 120/C Furnace shows a previous status code other than #11?
To address a status code other than #11, disconnect all the thermostat wires from the furnace control.
Specifies minimum distances to combustible materials for safe installation.
Overview of the furnace and its capabilities.
Compliance with national and local installation codes and standards.
Steps to prevent electrostatic discharge damage to electronic controls.
Guidelines for selecting and preparing the furnace's installation location.
Requirements for providing adequate combustion and ventilation air.
Instructions for connecting the bottom return air inlet.
Instructions for connecting the side return air inlet.
Procedures for installing leveling legs if needed.
Methods for supporting the furnace when suspended.
Methods for supporting the furnace on a platform.
Specific requirements for installing the furnace in a downflow configuration.
Guidelines for installing the furnace in a horizontal orientation.
How to connect the return air ducts to the furnace.
General considerations before starting the furnace.
Step-by-step guide for starting the furnace for the first time.
Procedures for adjusting gas pressure and temperature rise.
Procedures to verify the proper function of safety controls.
A summary checklist for pre-start-up checks.
Routine care and maintenance tasks for optimal furnace performance.
Detailed explanation of how the furnace operates in different modes.
Steps to diagnose and resolve common furnace issues.
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