Lennox Gas Units - Manual
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Table of Contents:
- Page 2 – Right
- Page 3 – FIGURE 1
- Page 4 – G61MP Gas Furnace; NOTE; Shipping and Packing List; Package 1 of 1 contains; DANGER; Safety Information; WARNING
- Page 5 – Use of Furnace as Construction Heater
- Page 6 – General; Product contains fiberglass wool.; CAUTION
- Page 7 – Unconfined Space; Air from Outside
- Page 8 – FIGURE 4; FIGURE 5; Btu (1.17 kW) per hour of total input rating of all equipment; Installation − Setting Equipment
- Page 9 – UPFLOW APPLICATION; The unit must be level from side to side. The unit may be
- Page 10 – Upflow Applications; Installation Clearances; FIGURE 8; − Return air from single side with transition which will; Refer to Engineering Handbook for additional information.
- Page 12 – Downflow Applications; Downflow Application Installation Clearances; Front to Rear
- Page 13 – B Cabinet
- Page 14 – Horizontal Applications; Suspended Installation of Horizontal Unit
- Page 15 – Return Air −− Horizontal Applications
- Page 16 – Filters; Furnace; Duct System; Pipe & Fittings Specifications
- Page 18 – Vent Piping Guidelines
- Page 20 – Joint Cementing Procedure
- Page 21 – Venting Practices; Exhaust Piping; IN UPFLOW OR DOWNFLOW DIRECT OR NON
- Page 22 – TYPICAL EXHAUST PIPE CONNECTIONS; HORIZONTAL DIRECT OR NON; IMPORTANT; Intake Piping
- Page 23 – TYPICAL AIR INTAKE PIPE CONNECTIONS; Follow the next three steps when installing the unit in; TYPICAL AIR INTAKE PIPE CONNECTIONS
- Page 24 – DOWNFLOW NON; ELL; the intake air routing should be modi-
- Page 29 – Side View
- Page 30 – G61MP DIRECT VENT APPLICATION; − Exhaust piping must terminate straight out or up as
- Page 31 – − If exhaust piping must be run up a side wall to position; G61MP NON−DIRECT VENT APPLICATION; − The condensate trap provided with the unit is
- Page 32 – Do
- Page 33 – Gas Piping; Leak Check; FIRE OR EXPLOSION HAZARD; Upflow Application
- Page 34 – Horizontal Application; TABLE 9
- Page 35 – Electrical; Precautions and Procedures; INTERIOR MAKE−UP BOX INSTALLATION
- Page 39 – TWO−STAGE INTEGRATED CONTROL BOARD; DIP SWITCH FUNCTIONS
- Page 40 – INTEGRATED CONTROL BOARD DIP SWITCH SETTINGS AND JUMPERS
- Page 41 – TYPICAL G61MP WIRING DIAGRAM
- Page 42 – Integrated Control Board; Select OFF; Unit Start−Up
- Page 44 – Gas Pressure Adjustment; Do not attempt to make adjustments to the gas valve.
- Page 45 – High Altitude Information
- Page 46 – CARBON MONOXIDE POISONING HAZARD!; Other Unit Adjustments; Primary and Secondary Limits
- Page 48 – Blower Performance Data
- Page 49 – − Air volumes in bold require field
- Page 52 – Heating Sequence of Operation
- Page 53 – Service
- Page 55 – Planned Service
- Page 56 – Ignition Control Board Diagnostic Codes; FLASH CODE
- Page 57 – Troubleshooting: Heating Sequence of Operation; HEATING SEQUENCE OF OPERATION; CONTINUED ON NEXT PAGE
- Page 59 – CONTINUED
- Page 61 – Troubleshooting: Cooling Sequence of Operation; COOLING SEQUENCE OF OPERATION
- Page 62 – Flame Sensor
- Page 63 – Vent Pipe Sizing Worksheet; Equivalent Feet; G61MP Start−Up & Performance Check List; Heating Section
- Page 64 – Requirements for Commonwealth of Massachusetts; Modifications to NFPA−54, Chapter 10
Page 1
08/09
*2P0809*
506406−01
*P506406-01*
E
2009 Lennox Industries Inc.
Dallas, Texas, USA
THIS MANUAL MUST BE LEFT WITH THE
HOMEOWNER FOR FUTURE REFERENCE
INSTALLATION
INSTRUCTIONS
G61MP SERIES UNITS
GAS UNITS
506406−01
08/2009
Supersedes 505,124M
Table of Contents
Unit Dimensions
2
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
G61MP Parts Identification
3
. . . . . . . . . . . . . . . . . . . . . .
Shipping and Packing List
4
. . . . . . . . . . . . . . . . . . . . . .
Safety Information
4
. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Use of Furnace as Construction Heater
5
. . . . . . . . . . .
General
6
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Combustion, Dilution & Ventilation Air
6
. . . . . . . . . . . .
Installation − Setting Equipment
8
. . . . . . . . . . . . . . . . . .
Filters
16
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Duct System
16
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Pipe & Fittings Specifications
16
. . . . . . . . . . . . . . . . . . . .
Vent Piping Guidelines
18
. . . . . . . . . . . . . . . . . . . . . . . . .
Joint Cementing Procedure
20
. . . . . . . . . . . . . . . . . . . . .
Venting Practices
21
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Gas Piping
33
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Electrical
35
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Integrated Control Board
42
. . . . . . . . . . . . . . . . . . . . . . .
Unit Start−Up
42
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Gas Pressure Adjustment
44
. . . . . . . . . . . . . . . . . . . . . .
High Altitude Information
45
. . . . . . . . . . . . . . . . . . . . . . .
Other Unit Adjustments
46
. . . . . . . . . . . . . . . . . . . . . . . . .
Service
53
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Ignition Control Board Diagnostic Codes
56
. . . . . . . . . .
Troubleshooting
57
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Repair Parts List
62
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Vent Pipe Sizing Worksheet
63
. . . . . . . . . . . . . . . . . . . . .
Start−Up & Performance Check List
63
. . . . . . . . . . . . . .
WHAT TO DO IF YOU SMELL GAS:
Do not store or use gasoline or other
flammable vapors and liquids in the
vicinity of this or any other ap-
pliance.
Installation and service must be
performed by a qualified installer,
service agency or the gas supplier.
D
Do not try to light any appliance.
D
Do not touch any electrical switch; do not
use any phone in your building.
D
Immediately call your gas supplier from a
neighbor’s phone. Follow the gas supplier’s
instructions.
D
If you cannot reach your gas supplier, call
the fire department.
FIRE OR EXPLOSION HAZARD.
Failure to follow safety warnings exact-
ly could result in serious injury, death,
or property damage.
WARNING
D
Leave the building immediately.
Litho U.S.A.
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Summary
Page 2 G61MP Unit Dimensions − inches (mm) *Bottom Return Air Opening *Bottom Return Air Opening ELECTRICAL INLET (Either Side) SUPPLY AIR OPENING AIR FLOW FRONT VIEW SIDE VIEW TOP VIEW A B 9/16 (14) C 3/4 (19) 3/4 (19) 28−1/2 (724) 19−7/16 (378) 23−1/2 (597) 4−1/4 (108) 11−5/8 (295) Right 9−3/4 (24...
Page 3 G61MP Parts Arrangement G61MP PARTS IDENTIFICATION FIGURE 1 TOP CAP CABINET BURNER BOX ASSEMBLY SIGHT GLASS DuralokPlus TM HEAT EXCHANGER ASSEMBLY CONDENSER COIL CONTROL BOX DOOR INTERLOCK SWITCH COLD HEADER (COLLECTOR) BOX COMBUSTION AIR INDUCER BLOWER ACCESS DOOR BURNER ACCESS PANEL FLUE CO...
Page 4 G61MP Gas Furnace The G61MP category IV gas furnace is shipped ready forinstallation in the upflow, downflow, horizontal left air dis-charge or horizontal right air discharge position. The fur-nace is shipped with the bottom panel in place. The bot-tom panel must be removed if the unit is to ...
