Manuals
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Lennox International Inc
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Gas Heater
Lennox International Inc
Gas Units, G61MP Series Units installation instructions FIGURE Page
Models:
G61MP Series Units
Gas Units
1
40
64
64
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Troubleshooting
Specs
Install
Repair Parts List
TYPICAL G61MP FIELD WIRING DIAGRAM
Dimension
Possible Gas Piping Configerations
TABLE Field Wiring Applications
Ignition Control Board Diagnostic Codes
Condensate Assembly
Page 40
Image 40
INTEGRATED CONTROL BOARD DIP SWITCH SETTINGS AND JUMPERS
FIGURE 53
Page 40
Page 39
Page 41
Page 40
Image 40
Page 39
Page 41
Contents
INSTALLATION INSTRUCTIONS
G61MP SERIES UNITS
2P0809
P506406-01
G61MP Unit Dimensions − inches mm
TOP VIEW
FRONT VIEW
SIDE VIEW
G61MP PARTS IDENTIFICATION
G61MP Parts Arrangement
Page
Safety Information
DANGER
G61MP Gas Furnace
Shipping and Packing List
Use of Furnace as Construction Heater
General
Combustion, Dilution & Ventilation Air
Air from Inside
Installation − Setting Equipment
SETTING EQUIPMENT
Upflow Applications
Optional Return Air Base
Downflow Applications
Installation on Combustible Flooring
Horizontal Applications
Unit Heater Discharge Duct Guidelines
Filters
Pipe & Fittings Specifications
Duct System
Page
Vent Piping Guidelines
4 − Determine the length of straight pipe required
Joint Cementing Procedure
Venting Practices
TYPICAL EXHAUST PIPE CONNECTIONS
TYPICAL AIR INTAKE PIPE CONNECTIONS
TYPICAL AIR INTAKE PIPE CONNECTIONS
TYPICAL AIR INTAKE PIPE CONNECTIONS
FIGURE FIGURE
TYPICAL AIR INTAKE PIPE CONNECTIONS
General Guidelines for Vent Terminations
VENT TERMINATION CLEARANCES
VENT TERMINATION CLEARANCES
FIGURE Page
TABLE EXHAUST PIPE TERMINATION SIZE REDUCTION
Front View
Side View
FIGURE G61MP NON−DIRECT VENT APPLICATION
CONDENSATE ASSEMBLY
Gas Piping
Possible Gas Piping Configerations
Horizontal Applications
FIGURE TABLE GAS PIPE CAPACITY − FT3/HR kL/HR
Page
Electrical
52 for control board config
TYPICAL G61MP FIELD WIRING DIAGRAM
9 − One
uration
TABLE Field Wiring Applications
TABLE Field Wiring Applications Continued
DIP SWITCH FUNCTIONS
TWO−STAGE INTEGRATED CONTROL BOARD
Page
1/4 QUICK CONNECT TERMINALS
FIGURE Page
TYPICAL G61MP WIRING DIAGRAM
FIGURE Page
Integrated Control Board
Unit Start−Up
Priming Condensate Trap
Gas Pressure Adjustment
High Altitude Information
Other Unit Adjustments
3 − Check amp-drawon the blower motor
Blower Performance Data
G61MP−60C−090 PERFORMANCE Less Filter
G61MP−60C−110 PERFORMANCE Less Filter
G61MP−60D−135 PERFORMANCE Less Filter
Heating Sequence of Operation
Service
27 − Reinstall electrical junction box
Planned Service
Ignition Control Board Diagnostic Codes
PRESSURE SWITCH CODES
FLASH CODE DESCRIPTIONS
FLAME CODES
Troubleshooting Heating Sequence of Operation
HEATING SEQUENCE OF OPERATION
NORMAL AND ABNORMAL HEATING MODE
CONTINUED ON NEXT PAGE
HEATING SEQUENCE OF OPERATION
CONTINUED
CONTINUED ON NEXT PAGE
Page
CONTINUED ON NEXT PAGE
HEATING SEQUENCE OF OPERATION CONTINUED
Page
SEE BOX A NORMAL OPERATION SEE BOX B
COOLING SEQUENCE OF OPERATION
Troubleshooting Cooling Sequence of Operation
Page
Repair Parts List
Vent Pipe Sizing Worksheet
G61MP Start−Up & Performance Check List
Requirements for Commonwealth of Massachusetts
