Bryant 925SA Series - User Manual

1
925SA
PREFERREDt SERIES SINGLE--STAGE
4--WAY MULTIPOISE
CONDENSING GAS FURNACE, SERIES A
Product Data
A11264
The 925SA Multipoise SEER Boost Condensing Gas Furnace
features the single--stage Preferred™ System. The Boost ECM
multiple--speed blower motor is at the heart of the electrical
efficiency provided by this furnace. With an Annual Fuel
Utilization Efficiency (AFUE) of 96.2%, the Preferred single--stage
gas furnace provides added savings over standard gas furnaces.
This Preferred Gas Furnace features 4--way multipoise installation
flexibility, and is available in six model sizes. The 925SA can be
vented for direct vent/two--pipe, ventilated combustion air, or
single--pipe applications. A Bryant Preferred Control and Preferred
Air Conditioner or Heat Pump, can be used to form a complete
Preferred Series System. All units meet California Air Quality
Management District emission requirements. All sizes are design
certified in Canada. All sizes are design certified for use in
Manufactured Housing (Mobile Home) applications when used
with factory--approved MH accessory kit.
STANDARD FEATURES
S Quiet operation. Compare for yourself at HVACpartners.com.
S Most sizes meet ENERGY STARR Version 4.0 criteria for gas
furnaces: 95+ AFUE; AMACF electrical rating; 2% or less
cabinet airflow leakage. See table on Page 2.
S Ideal height 35” (889 mm) cabinet: short enough for taller coils,
but still allows enough room for service.
S Preferred Features—match with the Preferred Control for
Preferred System benefits.
S Silicon Nitride Perfect Light™ Hot Surface Igniter.
S SmartEvap™ technology helps control humidity levels in the
home when used with a compatible humidity control system.
S FanOnPlus™ technology allows control of continuous fan
speed from a compatible thermostat.
S External Media Filter Cabinet included.
S 4--way multipoise design for upflow, downflow or horizontal
installation, with unique vent elbow and optional through--
the--cabinet downflow venting capability.
S Boost ECM multiple--speed blower motor, single--speed inducer
motor, and single--stage gas valve.
S Self--diagnostics.
S Adjustable blower speed for cooling, continuous fan, and
dehumidification.
S Approved for Twinning applications with accessory kit (42060
through 66120 models, only).
S Approved for Manufactured Housing/Mobile Home applications
with MH accessory kit.
S Aluminized--steel primary heat exchanger.
S Stainless--steel condensing secondary heat exchanger.
S Propane convertible (See Accessory list).
S Factory--configured ready for upflow applications.
S Fully--insulated casing including blower section.
S Convenient Air Purifier and Humidifier connections.
S Direct--vent/sealed combustion, single--pipe venting or
ventilated combustion air.
S Installation flexibility: sidewall or vertical vent.
S Residential installations may be eligible for consumer financing
through the Retail Credit Program.
S Certified to leak 2% or less of nominal air conditioning CFM
delivered when pressurized to 1--in. water column with all
present air inlets, air outlets, and condensate drain port(s) sealed.
LIMITED WARRANTY*
S 10 year parts and lifetime heat exchanger limited warranty to the
original purchaser upon timely registration.
S Limited warranty period is five years for parts and twenty years
for the heat exchanger if not registered within 90 days of
installation.{
* For owner occupied, residential applications.
{Jurisdictions where warranty benefits cannot be conditioned on registra-
tion will receive registered limited warranty benefits.
CERTIFIED
Always Ask For
Use of the AHRI Certified TM Mark indicates a
manufacturer’s participation in the program. For
verification of certification for individual products,
go to www.ahridirectory.org.
Select Models

Summary

Product Data and Features

Product Highlights

Key features like single-stage, 4-way multipoise, condensing gas furnace.

Standard Features

Core operational and installation characteristics of the furnace.

Limited Warranty

Details on warranty coverage for parts and heat exchanger.

Detailed Features and Technologies

Core Technologies

SmartEvap™, Fan On Plus™, Power Heat™ Igniter, and ECM motor.

Heat Exchangers and Installation

Primary/secondary heat exchangers, multipoise design, venting options.

System Integration and Compliance

Hybrid Heat system, quality registration, and certifications.

Model Nomenclature and Components

Model Number Explanation

Explanation of the furnace model number coding system.

Furnace Components Diagram

Visual identification of major internal furnace parts.

Accessories

Venting and Drainage Accessories

Kits for venting, termination, and condensate management.

IAQ and Control Accessories

Accessories for Indoor Air Quality and system control.

Venting System Specifications

Maximum Equivalent Vent Length

Vent length limits based on diameter, altitude, and components.

Venting Deductions and Calculations

Deductions for elbows and examples for vent length determination.

Installation Requirements

Return Air and Clearance Requirements

Guidelines for return air temperature and minimum installation clearances.

Installation Accessories Details

Details on downflow subbase and concentric vent kit.

System Components and Wiring

Media Filter Cabinet and Wiring

Cabinet dimensions and the furnace's typical wiring schematic.

Dimensional Data

Furnace Dimensions

Table and diagram showing furnace physical dimensions by model.

Guide Specifications

System Description and Exchangers

Furnace overview, fuel, heat exchanger materials, and design.

Controls, Operation, and Electrical

Details on furnace controls, operating characteristics, and electrical needs.

Overview

1. Function Description
2. Important Technical Specifications
3. Usage Features
4. Maintenance Features

The Bryant 925SA Preferred Series Single-Stage 4-Way Multipoise Condensing Gas Furnace, Series A, is a high-efficiency heating unit designed for residential applications. It features the Preferred™ System with a Boost ECM multiple-speed blower motor, contributing to its electrical efficiency. The furnace boasts an Annual Fuel Utilization Efficiency (AFUE) of 96.2%, offering significant energy savings compared to standard gas furnaces.

Function Description:

This furnace provides single-stage heating for homes, utilizing natural gas or propane (with an authorized conversion kit). Its primary function is to circulate heated air throughout the home, maintaining desired temperature levels. The 4-way multipoise design allows for flexible installation in upflow, downflow, or horizontal configurations. It can be vented for direct vent/two-pipe, ventilated combustion air, or single-pipe applications, offering versatility in installation. When paired with a Bryant Preferred Control and Preferred Air Conditioner or Heat Pump, it forms a complete Preferred Series System, enhancing overall home comfort and efficiency. The SmartEvap™ technology, when used with a compatible humidity control system, helps manage humidity levels by overriding the cooling blower off-delay to prevent re-humidification from condensate on the coil. The Fan On Plus™ technology allows homeowners to select their preferred continuous fan speed, improving year-round comfort.

Important Technical Specifications:

• AFUE: 96.2% across all models.
• Input Capacity (BTUH): Ranges from 40,000 to 120,000.
• Output Capacity (BTUH): Ranges from 39,000 to 117,000.
• Casing Dimensions (H x D x W): All models are 35 inches (889 mm) high and 30 inches deep. Widths vary from 14.2 inches (361 mm) to 24.5 inches (622 mm).
• Blower Motor: Boost ECM multiple-speed, with horsepower ranging from 1/2 to 1 HP.
• Blower Wheel Diameter x Width: Varies from 11 x 7 inches to 11 x 11 inches.
• Electrical Supply: 115 Volts, 60 Hz, single-phase.
• Minimum Wire Size: AWG 14 for smaller models, AWG 12 for larger models.
• Maximum Fuse/Circuit Breaker: 15 Amps for smaller models, 20 Amps for larger models.
• Gas Connection Size: 1/2-inch NPT.
• Burners: Monoport design, with 2 to 6 burners depending on the model.
• Transformer Capacity: 40 VA (24vac output).
• Cabinet Airflow Leakage: Certified to leak 2% or less of nominal air conditioning CFM.
• Minimum Clearances to Combustible Materials: 0 inches rear, 1 inch front, 1 inch all sides of supply plenum, 0 inches sides, 0 inches vent, 1 inch top of furnace.

Usage Features:

• Quiet Operation: Designed for low noise levels, enhancing indoor comfort.
• Compact Design: 35-inch (889 mm) cabinet height allows for installation with taller coils while still providing ample service room.
• Multipoise Installation: Adaptable for upflow, downflow, or horizontal applications, simplifying installation and reducing the need for specific models.
• Ventilation Flexibility: Supports direct vent/two-pipe, ventilated combustion air, or single-pipe venting, with options for sidewall or vertical termination.
• Self-Diagnostics: Integrated electronic control board with at least 16 service troubleshooting codes displayed via a diagnostic flashing LED light, simplifying maintenance and troubleshooting.
• Adjustable Blower Speed: Allows for customization of blower speeds for cooling, continuous fan, and dehumidification.
• Twinning Applications: Approved with an accessory kit for specific models, allowing two furnaces to operate together.
• Manufactured Housing/Mobile Home Approved: Can be used in manufactured housing with an approved MH accessory kit.
• External Media Filter Cabinet: Included as a standard accessory, making it easy to add a high-efficiency air filter for improved indoor air quality.
• HYBRID HEAT® Dual Fuel System Compatible: Can be integrated into a dual fuel system for optimal energy savings by automatically switching between gas furnace and electric heat pump based on outside temperatures.
• Propane Convertible: Can be converted to use propane gas with a CSA listed gas conversion kit.
• Convenient Connections: Includes connections for air purifiers and humidifiers.

Maintenance Features:

• Durable Heat Exchangers: Features an aluminized-steel primary heat exchanger and a stainless-steel condensing secondary heat exchanger, both designed for corrosion resistance and long-term reliability.
• Power Heat™ Igniter: Utilizes a Silicon Nitride Hot Surface Igniter, known for its robustness and ability to run at line voltage without complex voltage regulators, enhancing reliability.
• Insulated Casing: Fully insulated, including the blower section, to minimize heat loss and reduce noise from the blower and motor.
• Blower Access Panel Switch: Automatically shuts off 115-V power to the furnace when the blower access panel is opened, ensuring safety during maintenance.
• Reusable Filters: Equipped with reusable-type filters, simplifying routine filter maintenance.
• Easy Troubleshooting: The self-diagnostics feature with LED light codes helps identify and resolve issues quickly.

Bryant 925SA Series Specifications