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Title: Lennox 80UHG Gas Furnace
Price: $15.00
Item Number: M1020
Manufacturer: Lennox
Description: Table of Contents
- LENNOX 80UHG Gas Furnace Introduction
- SPECIFICATIONS
- BLOWER DATA
- HIGH ALTITUDE DERATE
- 80UHG PARTS IDENTIFICATION
- I-UNIT COMPONENTS
- 1- Control Transformer
- 2-Door Interlock Switch
- 3- Furnace Control (A3) 80UHG-2 Models
- 4-Flame Sensor 80UHG -2 Models
- 5- Furnace Control (A3) 80UHG-1 Model
- 6-Blower Motors and Capacitors
- 7-Combustion Air Blower (B6)
- 8 -Flame Rollout Switches (S47)
- 9-Primary Limit Control (S10)
- 10-Secondary Limit Controls (S21)
- 11-Spark Electrode and Flame Sensor80UHG-1 Models
- 12-Gas Valve
- 13-Combustion Air Blower Prove (Pressure) Switch (S18)
- II-PLACEMENT AND INSTALLATION
- III-START-UP
- A-Preliminary and Seasonal Checks
- B-Heating Start-Up
- C-Safety or Emergency Shutdown
- D-Extended Period Shutdown
- IV-HEATING SYSTEM SERVICE CHECKS
- A-A.G.AJC.G.A. Certification
- B-Gas Piping
- C-Testing Gas Piping
- D-Testing Gas Supply Pressure
- E-Check Manifold Pressure
- F- Proper Gas Flow (Approximate)
- G-Flame Signal
- V-TYPICAL OPERATING CHARACTERISTICS
- A-Blower Operation and Adjustment
- B-Temperature Rise
- C-External Static Pressure
- D-Blower Speed Taps Leadless Motors 80UHG-1 Models
- E-Blower Speed Taps Leaded Motors 80UHG-2 Models
- VI-MAINTENANCE
- A-Filters
- B- Heat Exchanger and Burners
- C-Supply Air Blower
- D-Flue and Chimney
- E-Electrical
- VII- Wiring and Sequence of Operation
- 80UHG-1 MODEL WITH EGC CONTROL
- 80UHG-2 MODEL WITH SURELIGHT CONTROL
- VIII- Troubleshooting-SureLight Control
- Lennox 80UHG Engineering Data
Models: 80UHG2(X)-45, 80UHG2(X)-60, 80UHG3(X)-60, 80UHG2(X)-75,
80UHG3(X)-75, 80UHG4(X)-75, 80UHG3/4(X)-100, 80UHG4/5(X)-100, 80UHG3/4(X)-120, 80UHG4/5(X)-120
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