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Manuals
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CONQUEST Manuals
Furnace
80
Service manual
CONQUEST 80 Service Manual
Gas upflow, gas downflow
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Contents
Table of Contents
Troubleshooting
Bookmarks
Table of Contents
Table of Contents
Introduction
Upflow Low Profile Furnace
Upflow/Horizontal Unit
Downflow Unit
Horizontal Unit
Standing Pilot Burner and Hot Surface Igniter
Heat Exchanger
Lnshot Burner Assembly
Induced Draft Blower Motor (IDM)
Limit Switches
Over Temperature Switches
Remote Flame Sensor
Cabinet
Blowers
Pressure Switch
Gas Valve
Unit Model Number Explanation
Unit Serial Number Explanation
Heatexchanger
Equipment Application
Unit Specifications
Physical Data
Accessories Ano Optional Equipment
LP Conversion Kits
Combustible Floor Base
Return Air Cabinets
Return Air Cabinet
Conversion Kits
Metal Base Plate
Plenum Adapters and Coil Plenums
Fossil Fuel Kits
External Filter Frames
Twinning Kits
Sidewall Vent Kits
Base Plate
Installation Requirements
Safety Rules Ano Helpful Information
Installation Procedures
Clearance Accessibility
Base Plate Installation
Dimensions: Downflow Units
Dimensions: Horizontal Only Units and Upflow/Horizontal Units in the Horizontal Position
Combustion and Ventilation Air
Furnace Located in Unconfined Space Using Indoor Air
Furnace Located in Aconfined Space
Using Indoor Air for Combustion
Using Outdoor Air for Combustion
Unconfined Space Dimensions
Indoor Air Opening Dimensions
Outside Air from Attic/Crawl Space
Outside Air Using a Horizontal Inlet & Outlet
Vertical Outdoor Air Opening Dimensions
Horizontal Outdoor Air Opening Dimensions
Venting General Information
Induced Draft Blower
Furnace Category Information
Retrofit Venting Instructions
Vent Pipe Material
National Fuel Gas Code Book
Pre-Drilling Fan Collar
Vertical Venting with B-Vent
Dedicated Venting through Chimney with B-Vent
Vertical Venting
Vertical Vent Systems
Special Vent System (S.V.s.)
Typical Venting with "B-Vent
Power Vent Systems
Power Venter Installation
Gas Supply and Piping
Electronic Combustible Gas Detector
Gas Pipe Installation
Electrical Wiring
Electrical Connections
Thermostat
Heat Anticipator Settings
Low Voltage Wiring
Isolation Relay
Return Air Ducting and Supply
Upflow Units
Start-Up Proceoure
Standing Pilot Models
Electronic Ignition Models
Pilot Positioning
Sequence of Operation
Electronic Ignition Gas Valve
Furnace Twinning
Honeywell Instructions
Honeywell Twinning Connections
UTEC Instructions
UTEC Single Stage Twinning
UTEC Two Stage Twinning
Electrical Wiring
Circuit Protection Sizing
Operation
Fossil Fuel Kits (Rxpf-E01)
Location and Wiring
Thermostat Operation
Fossil Fuel Kit Plenum Switch
Fossil Fuel Kits (Rxpf-F01)
Location and Wiring
Theromstat Operations
Fossil Fuel Kits (Rxpf-F02)
Location and Wiring
Thermostat Operations
Accessory Blower Time Delay Rxmd-Co2
Maintenance
Filters
Upflow Unit Filter Size Adjustment
Filter Retaining Rods
Horizontal Filter Installation
Optional External Filter Racks
Lubrication
Burner and Heating Components
Service and Troubleshooting
Introduction
Test Equipment
Water Heater
Installation and Service Checklist
High Voltage Circuit
Low Voltage Circuit
Robertshaw and Honeywell Standing Pilot Fan Control Boards
Fan Control Board
Blower off Settings - Robertshaw Standing Pilot
Blower off Settings - Honeywell Standing Pilot
Standing Pilot Troubleshooting Guide
Accessory Board
Accessory (Baby) Board
Fan Control Board Responses
Integrated Furnace Control (Ifc)
United Technologies (Utec)
Lock out Status
Soft Lock out Causes
Hard Lock out Causes
Self Healing
UTEC Integrated Circuit Board
Heat Assisted Limit Control (HALC)
Low Thermostat Anticipation
Control Board Characteristics
Twinning Jumper Plug
Control Responses
Honeywell Circuit Board
Voltage Spikes
Honeywell
Lock out Status
Soft Lock out Causes
Hard Lock out Causes
Control Board Characteristics
Control Responses
Setting Blower off Controls
Blower off Setting - Honeywell Integrated Circuit
Blower off Setting - UTEC Integrated Circuit
Blower Wiring Connections
Field Installed Accessories
Flame Sensing Current Switch Box Assembly
Switch Box Operation
Equipment Test Connections
Switch Box
Reasons for Burner Lockout
Remote Flame Sensor Kit Installation
Kit Components and Tools Needed
Sensor Mounting
Sensor Bracket Mounting
Flame Sensor Mounting
Sensor Splicing
Measure Voltage at 2-Pin Molexcap for 110-120 Volts
Measure Voltage from First Pin to Chassis Ground
Measure Voltage from Second Pin to Chassis Ground
Location of Wire Splice
Measure Flame Sense Current Using Flame Sensing Current Switch Box
Remote Flame Sensing Rod
Flame Sensor
Factory Installed Flame Sensor
Reasons for Burner Lockout
Integrated Furnace Control Board Replacement Kit
Normal Installations
Remote Flame Sensor Installation
Twinned Installations
Fossil Fuel Kits
Twinned Units with Fossil Fuel Kits
Present Control Descriptions and Troubleshooting
Integrated Furnace Controls Used on Current Low Profile Gas Furnaces
UTEC and Honeywell Controls
Setting the Blower off Timings
UTEC Led's
Honeywell Led's
UTEC-920/920A Blower off Timings
Honeywell E2001 Blowerofftimings
Flash Code
UTEC 1012-925 Controls
UTEC 1012-925 Furnace Control
Motor Wire Connections
Troubleshooting
Indicator Lights
UTEC 1012-925 Blower off Timings
Integrated Furnace Controls Used on Current Low Profile Gas Furnaces
UTEC 1028-927 DSI Furnace Control
DSI Output Transformer
IFC Troubleshooting Guide
Control Responses
Main Power "J" Box
Blower Door Switch
Controls
Negative Pressure Switch
Pressure Switch Settings
High Limit Control
High Limit Settings
Heat Assisted Limit Control (Halc)
Over Temperature Switch
Heat Assisted Limit Switch Setting Temperatures
Vent Safety Switch
Over Temperature Switch
Induced Draft Blower Vent Safety Switch Location
Induced Draft Blower
Transformer
Blower Motor
Induced Draft Blower Assembly
Blower Dimensions
Standing Pilot Control Board
Standing Pilot 9-Pin Plug
HSI Control 6-Pin Plug
Furnace Gas Train
Gas Valve
Adjusting Gas Pressure
Induced Draft Blower
LP Conversion Kit
Checking Line Gas Pressure
Furnace Orifice Sizing
Checking Furnace Input
Orifice Sizes
Hot Surface Igniters
Direct Spark Igniters
Hot Surface Igniter
Direct Spark Igniter
HSI Igniter
Standing Pilot Burner
Air Flow
Pilot Hood Location
Making Temperature Rise Check
Co and Co2 Levels in Flue Gases
Flue Gas Temperature Range
Checking Flue Temperature
Wiring Diagrams
Service Analyzer Charts
Remote Flame Sensor
Review Questions
Index
Index of Figures
Index Oftables
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CONQUEST
80®
SERVICE GUIDE
CONQUEST
CONQUEST
GASUPFLOW
GAS DOWNFLOW
GAS
FURNACE
BO+
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Table of Contents
Troubleshooting
SERVICE AND TROUBLESHOOTING
56
STANDING PILOT TROUBLESHOOTING GUIDE
60
Fossil fuel kits
76
Motor Wire Connections
80
IFC troubleshooting guide
83
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