Lennox G24M4-75 Manuals

Manuals and User Guides for Lennox G24M4-75. We have 1 Lennox G24M4-75 manual available for free PDF download: Installation Instructions Manual

Lennox G24M4-75 Installation Instructions Manual

Lennox G24M4-75 Installation Instructions Manual (33 pages)

G24M Series

Brand: Lennox | Category: Furnace | Size: 0.71 MB

Table of Contents

Table of Contents
1
G24M Unit Dimensions
2
Top View
2
Front View
2
Side View
2
G24M Parts Arrangement
3
G24M Gas Furnace
3
Shipping and Packing List
3
Requirements
3
Combustion, Dilution & Ventilation Air
5
Confirmed Space
6
Air from Inside
6
Air from Outside
6
Setting Equipment
8
Upflow Applications
8
Unit Conversion for Downflow Application
8
Downflow Applications
9
Installation on Non-Combustible Flooring
9
Installation on Combustible Flooring
9
Downflow Installation Clearances
9
Installing on Cooling Cabinet
10
Horizontal Applications
10
Duct System
11
Supply Air Plenum
11
Return Air Plenum
11
Venting Using a Masonry Chimney
12
General Venting Requirements
13
Common Venting Using Metal-Lined Masonry Chimney
13
Removal of the Furnace from Common Vent
18
Gas Piping
19
Gas Supply
19
Horizontal Venting
19
Side Wall Venting Kit Wiring
19
Gas Pipe Capacity
20
Leak Check
20
Electrical
21
Indoor Blower Speeds
21
Typical G24M Field Wiring Diagram
22
50A62 Surelight Integrated Control Board
22
G24M Schematic Wiring Diagram
23
Unit Start-Up
24
Placing Furnace into Operation
24
Gas Valve Operation
24
Turning off Gas to Unit
24
Gas Pressure Adjustment
25
Other Unit Adjustments
25
Heating Sequence of Operation
25
Gas Flow
25
Temperature Rise
26
Thermostat Heat Anticipation
26
Blower Speeds
26
Electronic Ignition
26
Service
27
Heat Exchanger
27
Repair Parts List
28
Ignition Control Board Diagnostic Codes
28
Troubleshooting
29
Cooling Sequence of Operation
31
Continuous Low Speed Fan Sequence of Operation
32
G24M Start-Up and Performance Check List
32

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