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Lennox International Inc
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Household Appliance
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Gas Heater
Lennox International Inc
G61MP Series Units, Gas Units TYPICAL G61MP WIRING DIAGRAM, FIGURE Page
Models:
G61MP Series Units
Gas Units
1
41
64
64
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Specifications
Install
Repair Parts List
TYPICAL G61MP WIRING DIAGRAM
for control board config
Condensate Assembly
Joint Cementing Procedure
Gas Pressure Adjustment
Setting Equipment
Safety
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Image 41
TYPICAL G61MP WIRING DIAGRAM
FIGURE 54
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Image 41
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Contents
G61MP SERIES UNITS
INSTALLATION INSTRUCTIONS
2P0809
P506406-01
TOP VIEW
G61MP Unit Dimensions − inches mm
FRONT VIEW
SIDE VIEW
Page
G61MP Parts Arrangement
G61MP PARTS IDENTIFICATION
DANGER
Safety Information
G61MP Gas Furnace
Shipping and Packing List
Use of Furnace as Construction Heater
Combustion, Dilution & Ventilation Air
General
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
Duct System
Pipe & Fittings Specifications
Filters
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
FIGURE Page
VENT TERMINATION CLEARANCES
TABLE EXHAUST PIPE TERMINATION SIZE REDUCTION
Front View
Side View
FIGURE G61MP NON−DIRECT VENT APPLICATION
CONDENSATE ASSEMBLY
Gas Piping
Horizontal Applications
Possible Gas Piping Configerations
FIGURE TABLE GAS PIPE CAPACITY − FT3/HR kL/HR
Page
Electrical
TYPICAL G61MP FIELD WIRING DIAGRAM
52 for control board config
9 − One
uration
TABLE Field Wiring Applications
TABLE Field Wiring Applications Continued
TWO−STAGE INTEGRATED CONTROL BOARD
DIP SWITCH FUNCTIONS
Page
1/4 QUICK CONNECT TERMINALS
FIGURE Page
FIGURE Page
TYPICAL G61MP WIRING DIAGRAM
Unit Start−Up
Integrated Control Board
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
PRESSURE SWITCH CODES
Ignition Control Board Diagnostic Codes
FLASH CODE DESCRIPTIONS
FLAME CODES
HEATING SEQUENCE OF OPERATION
Troubleshooting Heating Sequence of Operation
NORMAL AND ABNORMAL HEATING MODE
CONTINUED ON NEXT PAGE
CONTINUED
HEATING SEQUENCE OF OPERATION
CONTINUED ON NEXT PAGE
Page
Page
HEATING SEQUENCE OF OPERATION CONTINUED
CONTINUED ON NEXT PAGE
SEE BOX A NORMAL OPERATION SEE BOX B
Page
Troubleshooting Cooling Sequence of Operation
COOLING SEQUENCE OF OPERATION
Repair Parts List
G61MP Start−Up & Performance Check List
Vent Pipe Sizing Worksheet
Requirements for Commonwealth of Massachusetts
