Bryant 353BAV User Manual

1
353BAV
DELUXE 4--WAY MULTIPOISE 2--STAGE
CONDENSING GAS FURNACE
SIZES 060--120
Installation, Start--up and
Operating Instructions
NOTE: Read the entire instruction manual before starting
the installation.
NOTE: This furnace can be installed as a
(2-pipe) direct vent
or (1-pipe) non-direct vent
condensing gas furnace.
Special Venting Requirements for Installations in Canada
Installation in Canada must conform to the requirements of CSA
B149 code. Vent systems must be composed of pipe, fittings,
cements, and primers listed to ULC S636. The special vent
fittings and accessory concentric vent termination kits and
accessory external drain trap have been certified to ULC S636 for
use with those IPEX PVC vent components which have been
certified to this standard. In Canada, the primer and cement must
be of the same manufacturer as the vent system -- IPEX System
636, PVC/CPVC Primer, Purple Violet for Flue Gas Venting and
IPEX System 636, PVC Cement for Flue Gas Venting, rated
Class IIA, 65 deg C. must be used with this venting system -- do
not mix primers and cements from one manufacturer with a vent
system from a different manufacturer. Follow the manufacturer’s
instructions in the use of primer and cement and never use primer
or cement beyond its expiration date.
The safe operation, as defined by ULC S636, of the vent system
is based on following these installation instructions, the vent
system manufacturer’s installation instructions, and proper use of
primer and cement. All fire stop and roof flashing used with this
system must be UL listed material. Acceptability under Canadian
standard CSA B149 is dependent upon full compliance with all
installation instructions. Under this standard, it is recommended
that the vent system be checked once a year by qualified service
personnel.
The authority having jurisdiction (gas inspection authority,
municipal building department, fire department, etc) should be
consulted before installation to determine the need to obtain a
permit.
Consignes spéciales pour l’installation de ventillation au Canada
L’installation faite au Canada doit se conformer aux exigences du
code CSA B149. Ce systême de ventillation doit se composer de
tuyaux, raccords, ciments et apprêts conformes au ULC S636. La
tuyauterie de ventillation des gaz, ses accessoires, le terminal
concentrique mural ainsi que l’ensemble du drain de condensat
extérieur ont été certifiés ULCS 636 pour l’application des
composantes IPEX PVC qui sont certifiées à ce standard. Au
Canada l’apprêt et le ciment doivent être du même manufacturier
que le systême de ventillation -- IPEX Système 636, Apprêt
PVC/CPVC. Mauve Violette pour conduit en évacuation des gaz
et IPEX Système 636, ciment pour PVC pour conduit en
évacuation des gaz, évalué CLASSEIIA,65deg.C.doitëtre
utilisé avec ce systèeme d’évacuation -- ne pas mélanger l’apprêt
et le ciment d’un manufacturier avec le systême de ventillation
d’un autre manufacturier. Bien suivre les indications du
manufacturier lors de l’utilisation de l’apprêt et du ciment et ne
pas utiliser ceux--ci si la date d’expiration est atteinte.
L’opération sécuritaire, tel que définit par ULC S636, du système
de ventilation est basé sur les instructions d’installation suivantes,
ainsi que l’usage approprié de l’apprêt et ciment. Tout arrët feu et
solin de toit utilisés avec ce système doivent être des matériaux
listés UL. L’acceptation du standard Canadien CSA B419 est
directement relié à l’installation conforme aux instructions ci--
haut mentionnées. Le standard Canadien recommande l’
inspection par un personel qualifié et ce, une fois par année.
Some Provinces may require the combustion air system to be
ULC--S636 certified.

Bryant 353BAV Specifications

General

Model	353BAV
Type	Gas Furnace
Efficiency Rating	High Efficiency
Blower Type	Variable Speed
Stages	Two-Stage
Blower Motor	Variable Speed ECM
Vent Type	Direct Vent
Fuel Type	Natural Gas
Warranty	10-year parts limited warranty upon registration

Summary

Installation, Start-up and Operating Instructions

Special Venting Requirements for Installations in Canada

Venting requirements for Canada, conforming to CSA B149 code and ULC S636 standards.

Massachusetts Installation Requirements

IMPORTANT Regulatory Compliance

Commonwealth of Massachusetts requires compliance with 248 CMR, including CO detector and signage.

Safety Considerations and Hazards

Furnace Reliability Hazard

Caution regarding potential unit component damage due to improper application or installation.

Fire, Explosion, Electrical Shock, and CO Hazards

Warning about hazards from improper installation, adjustment, alteration, or use.

Cut Hazard

Caution regarding sharp edges on sheet metal parts, advising care and protective gear.

Furnace Installation Overview

Multipoise Orientations (Fig. 1)

Illustration of the furnace's multipoise orientations: Upflow, Downflow, Horizontal Left, Horizontal Right.

Construction Heat Operation

Conditions for using the furnace for construction heat, ensuring proper installation and operation.

Codes and Standards Compliance

Safety and General Installation Standards

Lists safety standards for installation, including NFGC, NFPA 90B, CSA B149.1, and NSCNGPIC.

Combustion, Ventilation, and Duct Systems

Details requirements for combustion air, ventilation, and duct systems per industry standards.

Gas Piping and Electrical Connections

Outlines requirements for gas piping, pressure testing, and electrical connections per NEC and CSA.

Dimensional Drawings and Specifications

Fig. 3 - Dimensional Drawing

Provides a dimensional drawing of the furnace with connection points and overall dimensions.

Unit Dimensions Table

Table listing unit size and corresponding dimensions A, D, and E in inches and millimeters.

Furnace Installation Procedures and Clearances

Minimum Clearances to Combustible Construction

Details minimum clearance requirements from combustible materials for furnace installation.

Fig. 4 - Clearances to Combustibles

Illustrates required clearances to combustible materials for various furnace orientations.

Electrostatic Discharge (ESD) Precautions

Procedure to prevent damage to electronic components from electrostatic discharge during installation and servicing.

Furnace Introduction and Applications

INTRODUCTION

Introduces the 353BAV furnace, its type, multipoise capability, and vent applications.

APPLICATIONS

Discusses the furnace's applications and general installation requirements.

Condensate Trap Location and Tubing (Factory-Shipped)

Explains factory-shipped condensate trap location and tubing for upflow applications.

Condensate Trap Configuration and Connections

Fig. 5 - Condensate Trap

Diagram showing condensate trap configurations for different applications and drain connections.

Alternate Upflow Condensate Trap Location

Describes an alternate location for the condensate trap on the left-hand side casing for upflow applications.

WARNING: Carbon Monoxide Hazard

Warning about carbon monoxide poisoning hazard if casing hole filler cap is not installed correctly.

Drainage Connections and Tube Routing

Fig. 6 - Factory-Shipped Upflow Tube Configuration

Illustrates the factory-shipped tube configuration for upflow applications.

Inducer Housing Drain Tube and Condensate Trap Field Drain

Instructions for inducer housing drain tube and condensate trap field drain attachment.

Pressure Switch Tubing and Unused Drain Connections

Details pressure switch tubing and unused upper drain connections.

Downflow Drainage Configurations and Hazards

Fig. 8 - Downflow Tube Configuration (Left-Hand Trap)

Diagram showing tube configuration for downflow installation with a left-hand trap.

CONDENSATE TRAP TUBING

Instructions for relocating and connecting condensate trap tubing for downflow applications.

WARNING: Carbon Monoxide Hazard

Warning about carbon monoxide poisoning hazard if casing hole filler cap is not installed correctly.

Downflow and Horizontal Drainage Connections

Fig. 9 - Downflow Tube Configuration (Right-Hand Trap)

Diagram illustrating tube configuration for downflow installation with a right-hand trap.

Inducer Housing Drain Tube and Pressure Switch Tubing

Instructions for inducer housing drain tube and pressure switch tubing for downflow applications.

CONDENSATE TRAP FIELD DRAIN ATTACHMENT

Refers to Condensate Drain section for attachment recommendations.

Horizontal Left Installation and Condensate Trap Location

Fig. 10 - Horizontal Left Tube Configuration

Diagram showing tube configuration for horizontal left discharge applications.

CONDENSATE TRAP LOCATION

Procedures for relocating the condensate trap for horizontal left applications.

WARNING: Carbon Monoxide Hazard

Warning about carbon monoxide poisoning hazard if casing hole filler cap is not installed correctly.

Attic Installation Locations and Working Platforms

Fig. 11 - Attic Location and Working Platform for Direct Vent (2-Pipe) Applications

Illustrates attic location and working platform requirements for direct vent applications.

CONDENSATE TRAP LOCATION

Procedures for relocating the condensate trap for attic applications.

WARNING: Carbon Monoxide Hazard

Warning about carbon monoxide poisoning hazard if casing hole filler cap is not installed correctly.

Non-Direct Vent Attic Installation and Drain Procedures

Fig. 12 - Attic Location and Working Platform for Non-Direct Vent (1-pipe) Applications

Illustrates attic location and working platform requirements for non-direct vent applications.

Inducer Housing Drain Tube and Pressure Switch Tubing

Instructions for inducer housing drain tube and pressure switch tubing for non-direct vent applications.

CONDENSATE TRAP FIELD DRAIN ATTACHMENT

Refers to Condensate Drain section for attachment recommendations.

Horizontal Right Installation and Proper Drainage

Fig. 13 - Horizontal Right Tube Configuration

Diagram showing tube configuration for horizontal right discharge applications.

CAUTION: Unit Operation Hazard

Caution regarding unit operation hazards, specifically condensate trap and vent pipe installation.

Fig. 14 - Proper Condensate Drainage

Illustrates proper condensate drainage for upflow/downflow and horizontal furnace installations.

Furnace Location Requirements and Hazards

CAUTION: Unit Damage Hazard

Caution regarding unit damage hazards when using the furnace for construction heat.

Fig. 15 - Prohibit Installation on Back

Illustration showing prohibited installation positions for the furnace.

Step 3 - Hazardous Locations

Warning and requirements for installing the furnace in hazardous locations like garages.

Combustion Air and Ventilation Requirements

Fig. 17 Installation in a Garage

Illustration showing installation requirements for furnaces in garages.

NON-DIRECT VENT (1-PIPE) APPLICATION

Specific cautions and requirements for non-direct vent (1-pipe) applications.

AIR FOR COMBUSTION AND VENTILATION

Explains provisions for adequate combustion, ventilation, and dilution air according to US and Canadian codes.

Combustion Air Opening Sizing and Space Volume Requirements

Table 1 - Minimum Free Area for Combustion Air Openings

Table providing minimum free area requirements for combustion air openings based on BTUH input and duct configuration.

Table 2 - Minimum Space Volumes for Combustion Air

Table specifying minimum space volumes required for combustion air based on ACH and fan-assisted total input.

The Standard Method:

Details the standard method for determining space volume requirements for combustion air.

Indoor Air for Combustion and Ventilation

Fig. 18 Air for Combustion, Ventilation, and Dilution for Outdoors

Illustrates methods for providing combustion air, ventilation, and dilution from outdoors.

2. For fan-assisted appliances such as this furnace:

Formula for calculating space volume for fan-assisted appliances like this furnace.

Fig. 19 - Air for Combustion, Ventilation, and Dilution from Indoors

Illustrates methods for providing combustion air, ventilation, and dilution from indoors.

Furnace Installation Procedures

Step 1 - Leveling Legs (If Desired)

Instructions for installing leveling legs, if desired, for furnace installation.

Step 2 - Installation in Upflow and Downflow Applications

Instructions for installing the furnace in upflow and downflow applications.

Step 3 - Installation in Horizontal Applications

Instructions for installing the furnace in horizontal left or right discharge positions.

Duct System Requirements and Flange Modification

Step 4 - Air Ducts

General requirements for designing and sizing the duct system.

Fig. 22 - Furnace, Plenum, and Subbase Installed on a Combustible Floor

Illustration of furnace installation on a combustible floor with a subbase.

Fig. 24 - Duct Flanges

Diagram showing how to modify duct flanges for proper installation.

Supply and Return Air Connections

SUPPLY AIRCONNECTIONS

Instructions for connecting the supply air duct to the furnace for various applications.

RETURN AIRCONNECTIONS

Guidelines for designing and installing the return air system to prevent negative pressure issues.

WARNING: Fire Hazard

Warning about fire hazard from incorrect return air duct connections.

Crawlspace Installation and Pipe Grommets

Fig. 25 - Crawlspace Horizontal Application

Illustration of crawlspace horizontal installation for both direct and non-direct vent systems.

Combustion-Air Pipe Grommets and Entry Hole Filler Plug Installation

Shows how to install grommets and filler plugs for combustion-air pipe connections.

Filter Arrangement and Furnace Operation

Upflow Furnaces Return-Air Duct Connection

Instructions for connecting the return-air duct to the furnace for upflow applications.

Step 5 - Filter Arrangement

Details the filter arrangement options and installation for the furnace.

WARNING: Filter Hazards

Warning about fire, carbon monoxide, and poisoning hazards from operating without a filter.

Gas Piping and Electrical Data

Fig. 28 - Removing Bottom Closure Panel

Diagram showing how to remove the bottom closure panel.

Step 6 - Bottom Closure Panel

Instructions for removing and reinstalling the bottom closure panel.

Step 7 - Gas Piping

Details gas piping installation requirements according to national and local codes.

Gas Pipe Arrangement and Electrical Specifications

Fig. 29 - Typical Gas Pipe Arrangement

Illustrates a typical gas pipe arrangement for furnace installation.

Table 6 - Electrical Data

Table providing electrical specifications including voltage, wire size, and fuse/breaker ratings.

Electrical Connections and Grounding

Fig. 30 - Typical Gas Pipe Arrangement

Shows typical gas pipe arrangement with grommets and filler plugs.

Step 8 - Electrical Connections

Instructions for making electrical connections, including wiring and grounding requirements.

WARNING: Electrical Shock Hazard

Warning about electrical shock hazards during furnace installation.

Heating and Cooling Wiring Diagrams

Fig. 31 Typical Heating and Cooling Wiring Diagram 1-Stage

Wiring diagram for heating and cooling with a 1-stage thermostat and condensing unit.

Fig. 32 Typical Heating and Cooling Wiring Diagram 2-Stage

Wiring diagram for heating and cooling with a 2-stage thermostat and condensing unit.

Electrical Safety and 24-V Wiring

Fig. 33 - Disconnect Switch and Furnace

Illustration of the disconnect switch and its connection to the furnace.

WARNING: Fire Hazard

Warning about fire hazards related to using aluminum wire for electrical connections.

24-V WIRING

Instructions for making field 24-v connections at the furnace terminal block.

Combustion Air and Vent Pipe System Guidelines

Step 10 - Combustion Air and Vent Pipe Systems

General guidelines for combustion air and vent pipe systems, including direct and non-direct vent applications.

DIRECT VENT/2-PIPE SYSTEM

Specific requirements for direct vent (2-pipe) systems, including termination kits.

WARNING: Carbon Monoxide Poisoning Hazard

Warning about carbon monoxide poisoning hazard during venting system operation.

Furnace Wiring Diagram and Control Center Components

Fig. 36 - Wiring Diagram

Detailed wiring diagram for the furnace, showing electrical components and connections.

LEGEND

Key to symbols and abbreviations used in the wiring diagram.

Combustion Air Pipe and Vent Pipe Materials

Table 7 - Approved Combustion-Air and Vent Pipe Materials

Table listing approved materials for combustion-air and vent pipe systems according to ASTM specifications.

WARNING: Fire and Explosion Hazard

Warning about fire and explosion hazards associated with combustible solvent cements.

COMBUSTION AIR PIPE

General guidelines for attaching the combustion air pipe to the furnace.

Control Center and Combustion Air Pipe Assembly

Fig. 37 Control Center

Diagram of the furnace control center, showing setup switches and terminal connections.

Assembly of Combustion Air Pipe (Non-Direct Vent/1-Pipe System ONLY)

Instructions for assembling the combustion air pipe for non-direct vent systems.

CAUTION: Unit May Not Operate

Caution regarding intermittent furnace operation when using short pipe lengths.

Vent Termination Clearances

Table 8- Direct Vent Termination Clearance

Table detailing clearance requirements for direct vent termination locations.

Notes:

Notes regarding vent termination placement and condensate management.

Non-Direct Vent Termination Clearances

Table 9 - Other than Direct Vent Termination Clearance

Table detailing clearance requirements for non-direct vent termination locations.

Notes:

Notes regarding vent termination placement and condensate management.

Allowable Vent Pipe Lengths

Table 10 - Maximum Allowable Exposed Vent Pipe Length (FT/M)

Table showing maximum allowable vent pipe lengths based on altitude, unit size, and insulation.

Combustion Air Pipe and Vent Pipe Instructions

Instructions for determining combustion air pipe connection and length, and vent pipe connection.

Combustion-Air and Vent Pipe Connections

Fig. 38 - Combustion-Air and Vent Pipe Connections

Diagram showing combustion-air and vent pipe connection configurations for different applications.

WARNING: Carbon Monoxide Poisoning and Property Damage Hazard

Warning about carbon monoxide poisoning and property damage hazards from inducer housing outlet cap.

Maximum Allowable Pipe Length Tables

Table 11 - Maximum Allowable Pipe Length – FT (M)

Table showing maximum allowable pipe lengths for direct and non-direct vent systems based on altitude, unit size, and elbows.

NOTES:

Notes regarding disk usage, Canadian installations, and pipe size selection.

Maximum Allowable Pipe Length Tables (Continued)

Table 13 - Maximum Allowable Pipe Length – Ft (M) (Continued)

Continuation of the table for maximum allowable pipe lengths, including more altitude ranges.

NOTES:

Notes related to disk usage, Canadian installations, and pipe size selection.

Maximum Allowable Pipe Length Tables (Continued)

Table 13 - Maximum Allowable Pipe Length – Ft (M) (Continued)

Further continuation of the table for maximum allowable pipe lengths, covering additional altitude ranges.

NOTES:

Notes regarding pipe size, elbow usage, and termination length.

Vent Extension Pipe and Pipe Installation Guidelines

CAUTION: Unit Damage Hazard

Caution regarding unit damage hazards if inducer housing outlet cap is not installed correctly.

Installation Guidelines for Combustion Air Pipe and Vent Pipe

Detailed guidelines for cutting, preparing, and cementing combustion air and vent pipes.

Fig. 40 - Pipe Grommets and Entry Hole Filler Plug Installation

Diagram showing installation of pipe grommets and entry hole filler plugs.

Pipe Diameter Transitions and Air Intake Housing

Fig. 41 - Combustion-Air and Vent Pipe Diameter Transition Location and Elbow Configuration

Illustration showing pipe diameter transitions and elbow configurations.

EXAMPLE:

Example calculation for determining pipe size based on altitude and elbow count.

Fig. 42 - Air Intake Housing Plug Fitting Drain

Diagram showing the air intake housing plug fitting drain.

Short Vent System Configurations

Fig. 43 - Short Vent System

Diagram illustrating short vent system configurations.

VENT TERMINATION General

General guidelines for vent termination, including clearance and placement considerations.

Extended Exposed Sidewall Pipes

Guidelines for extending exposed sidewall pipes, including insulation and diameter determination.

Vent Termination Diagrams

Fig. 44 - Combustion Air and Vent Pipe Termination for Direct Vent (2-pipe) System

Diagram showing combustion air and vent pipe termination for direct vent systems.

Fig. 45 - Vent Pipe Termination for Non-Direct Vent (1-pipe) System

Diagram showing vent pipe termination for non-direct vent systems.

Vent Termination Kits and Condensate Drain Procedures

Table 12 - Vent Termination Kit for Direct Vent/2-Pipe System

Table listing available vent termination kits for direct vent systems.

Concentric Vent/Combustion Air Termination Kit (Direct Vent/2-Pipe System Only)

Instructions for installing concentric vent/combustion air termination kits.

Step 11 - Condensate Drain

Instructions for condensate drain installation, including trap relocation and priming.

Condensate Drain Protection and Start-Up Checks

Fig. 46 - Example of Field Drain Attachment

Diagram illustrating an example of field drain attachment.

CONDENSATE DRAIN PROTECTION

Recommendations for protecting condensate traps and drain lines from freezing.

START-UP ADJUSTMENT AND SAFETY CHECK

Procedures for start-up, adjustment, and safety checks of the furnace.

Condensate Trap Priming and Gas Line Procedures

Fig. 48 - Inducer Housing Drain Cap

Diagram showing the inducer housing drain cap.

Fig. 49 - Filling Condensate Trap

Illustration showing how to fill the condensate trap with water.

Step 2 - Prime Condensate Trap With Water

Instructions for priming the condensate trap with water.

Step 3 - Purge Gas Lines

Instructions for purging gas lines and checking for leaks.

Sequence of Operation and Heating Modes

Step 4 - Sequence of Operation

Detailed explanation of the furnace's sequence of operation in various modes.

TWO-STAGE HEATING WITH SINGLE-STAGE THERMOSTAT (ADAPTIVE MODE)

Explanation of two-stage heating operation with a single-stage thermostat using adaptive mode.

1. Inducer Prepurge Period

Describes the inducer prepurge period for both low-heat and high-heat operations.

Blower Operation and Cooling Modes

CONTINUOUS BLOWER MODE

Explains continuous blower operation and speed selection.

HEAT PUMP

Instructions for operating the furnace with a heat pump, including timing sequences.

THERMIDISTAT MODE

Explains operation with a Thermidistat, including dehumidification and cooling exceptions.

Thermostat Wiring Diagrams

Fig. 50 - Two-Stage Furnace with Single-Speed Air Conditioner

Wiring diagram for two-stage furnace with a single-speed air conditioner.

Fig. 51 - Two-Stage Furnace with Two-Speed Air Conditioner

Wiring diagram for two-stage furnace with a two-speed air conditioner.

Fig. 52 - Two-Stage Furnace with Single-Speed Heat Pump (Dual Fuel)

Wiring diagram for two-stage furnace with a single-speed heat pump (dual fuel).

Heat Pump and Dual Fuel Thermostat Wiring

Fig. 53 - Two-Stage Furnace with Two-Speed Heat Pump (Dual Fuel)

Wiring diagram for two-stage furnace with a two-speed heat pump (dual fuel).

Fig. 55 - Dual Fuel Thermostat With Two-Stage Furnace and Two-Speed Heat Pump

Wiring diagram for dual fuel thermostat with furnace and heat pump.

Fig. 54 - Dual Fuel Thermostat with Two-Stage Furnace and Single-Speed Heat Pump

Wiring diagram for dual fuel thermostat with furnace and single-speed heat pump.

Thermostat Wiring Diagram and Notes

Fig. 57 - Single-Stage Thermostat With Two-Stage Furnace and Two-Speed Air Conditioner

Wiring diagram for single-stage thermostat with furnace and two-speed air conditioner.

NOTES FOR FIG. 50-57:

Notes and important setup instructions for various thermostat and heat pump configurations.

Blower Operation and Component Self-Test

CONTINUOUS BLOWER MODE

Explains continuous blower operation and speed selection.

HEAT PUMP

Instructions for operating the furnace with a heat pump, including timing sequences.

COMPONENT SELF-TEST

Procedure for performing a component self-test to diagnose system issues.

Furnace Adjustments and Gas Input Rate Setting

Step 5 - Adjustments

Section detailing various adjustments for furnace operation.

SET GAS INPUT RATE

Instructions for setting the gas input rate, including altitude derating and orifice selection.

CAUTION: Unit Damage Hazard

Caution regarding reduced furnace life from improper gas valve regulator adjustment.

Orifice Size and Manifold Pressures Table

Table 15 - Model 353BAV Orifice Size and High/Low-Heat Manifold Pressures for Correct Inputs

Table providing orifice sizes and manifold pressures for correct inputs based on altitude and gas gravity.

Orifice Size and Manifold Pressures Table (Continued)

Table 15 - Model 353BAV Orifice Size and High/Low-Heat Manifold Pressures for Correct Inputs (Continued)

Continuation of the table for orifice size and manifold pressures, covering more altitudes.

Gas Control Valve and Input Rate Verification

Fig. 58 - Redundant Automatic Gas Control Valve

Diagram of the redundant automatic gas control valve.

3. Verify Natural Gas Input Rate By Clocking Gas Meter.

Procedure for verifying natural gas input rate by clocking the gas meter.

e. Check and verify orifice size in furnace. NEVER ASSUME THE ORIFICE SIZE. ALWAYS CHECK AND VERIFY.

Emphasizes the importance of checking and verifying burner orifice size.

Altitude Derate Multipliers and Temperature Rise Setting

Table 16 - Altitude Derate Multiplier for U.S.A.

Table showing altitude derate multipliers for the USA.

Table 17 - Gas Rate (CU FT/HR)

Table providing gas rates in cubic feet per hour based on test dial seconds and revolution.

SET TEMPERATURE RISE

Instructions for setting the temperature rise and checking for excessive restrictions.

Blower Speed Selection and Safety Control Checks

Table 18 - Speed Selection

Table for selecting blower speed based on unit size and external static pressure.

ADJUST BLOWER OFF DELAY (HEAT MODE)

Instructions for adjusting the blower off delay for improved comfort.

Step 6 - Safety Controls

Section detailing checks for safety controls like primary limit and pressure switch.

Installation Checklists

CHECKLIST - DIRECT VENT (2-PIPE) INSTALLATION

Checklist for direct vent (2-pipe) installation steps.

CHECKLIST - START-UP

Checklist for start-up procedures, including gas input rate and temperature rise.

Safety Controls Check Operation

Checklist items for verifying safety control operation.

Non-Direct Vent Installation Checklist

CHECKLIST - NON DIRECT VENT (1-PIPE) INSTALLATION

Checklist for non-direct vent (1-pipe) installation steps.

CHECKLIST-START-UP

Checklist for start-up procedures, including gas input rate and temperature rise.

Safety Controls Check Operation

Checklist items for verifying safety control operation.