G61MP. ELITE Series Multi-Position - Two-Stage Heat. AFUE - Up to 95% Input - 44,000 to 132,000 Btuh Nominal Add-on Cooling - 2.

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1 P R O D U C T S P E C I F I C AT I O N S G A S F U R N A C E S G6MP ELITE Series Multi-Position - Two-Stage Heat Bulletin No. 038 August 009 Supersedes December 008 AFUE - Up to 95% Input - 44,000 to 3,000 Btuh Nominal Add-on Cooling -.5 to 5 Tons MODEL NUMBER IDENTIFICATION G 6 MP - 36 B Unit Type G = Gas Furnace Series 6 = 90% Minimum AFUE Configuration MP = Multi-Position Nominal Add-On Cooling Capacity 36 = 3 tons 48 = 4 tons 60 = 5 tons Cabinet Width B = 7-/ in. C = in. D = 4-/ in. Nominal Gas Heat Input 045 = 44,000 Btuh 070 = 66,000 Btuh 07 = 66,000 Btuh 090 = 88,000 Btuh 09 = 88,000 Btuh 0 = 0,000 Btuh = 0,000 Btuh 35 = 3,000 Btuh Indoor coils with the same letter designation will physically match the furnace.

2 FEATURES Contents Blower/Watts Data...6 Furnace/Coil Combined Dimensions... Dimensions...0 Exhaust Pipe Venting Table...8 Features... Filter Air Resistance...9 Gas Heat Accessories...7 Installation Clearances...9 Installation Configurations...9 Model Number Identification... Optional Accessories...7 Optional Accessory Dimensions... Specifications...6 Termination Kits - Equivalent Vent Lengths...8 WARRANTY Duralok Plus Aluminized Steel Heat Exchanger - Limited lifetime warranty in residential applications (twenty year transferrable), ten years in non-residential applications. All other covered components - Limited five year warranty in residential applications, one year in nonresidential applications. Refer to Lennox Equipment Limited Warranty certificate included with equipment for details. APPROVALS Units certified by CSA International and ratings are certified by GAMA. Units tested and rated according to US DOE test procedures and FTC labeling regulations. Blower data from unit tests conducted in Lennox Laboratory air test chamber. Approved by the California Energy Commission and meet California Seasonal Efficiency requirements and California Nitrogen Oxides (NOx) Standards. Energy Star certified units are designed to use less energy, help save money on utility bills, and help protect the environment. ISO 900 Registered Manufacturing Quality System. APPLICATIONS Input capacities of 44,000, 66,000, 88,000, 0,000, and 3,000 Btuh. Energy efficiency (AFUE) of up to 95% in all four installation configurations. Compact cabinet for upflow, downflow, horizontal-left or horizontal-right applications without any internal modifications to the unit. Lennox add-on indoor coils, high-efficiency air cleaners and humidifiers can easily be added to furnace. Shipped factory assembled with all controls installed and wired. Each unit factory test operated to ensure proper operation. G6MP / Page DIRECT VENT / NON-DIRECT VENT Furnace can be installed in either Direct Vent or Non-Direct applications. In Direct Vent applications, combustion air is supplied from outdoors and flue gases are discharged outdoors. In Non-Direct Vent applications, combustion air is supplied from indoors and flue gases are discharged outdoors. OPTIONS Termination Kits Facilitates installation of combustion air intake pipe and flue exhaust pipe. Refer to venting table in this bulletin to determine pipe size needed and proper termination kit required. See Specifications table and dimension drawings. Termination Kit - Concentric - Direct Vent Applications Only or 3 inch kit contains concentric termination assembly, reducer bushing and 45 degree elbow. inch kit for models contains an outdoor exhaust accelerator. Kit requires single hole penetration of roof or wall for installation. Roof Termination Flashing Kit is available for use with inch Kits. CSA certified. M G K E F J Termination Kits - Wall Assembly A Close Couple (US Only) - Direct Vent Applications Only or 3 inch kit consists of close-couple, side-by-side PVC piping with galvanized steel wall cover plate for sealing and isolating piping penetration of the wall. B D L H I C Piping spacing and length is sized for proper wall installations. CSA certified.

3 FEATURES B C Close Couple WTK (Canada Only) - Direct Vent Applications Only or 3 inch kit contains one insulated faceplate, one insulated exhaust pipe, elbow and fittings. Wall Ring - Direct or Non-Direct Vent inch kit contains stainless steel outside seal caps, galvanized steel inside seal caps, 4 seal rings for the caps and 8 inch insulation sleeve for sealing and isolating intake and exhaust piping penetration of wall. Maintain a maximum of 6 inches between the inlet and outlet openings in the installation of the pipes. Roof Termination Flashing Kit - Direct or Non-Direct Vent or 3 inch kit contains two neoprene rubber roof flashings for vertical venting through a roof. Vent pipe and insulation not furnished. Each kit contains enough parts for two non-direct vent installations. Also available for use with inch (use 3 inch flashing) Concentric Vent Termination Kits used in vertical venting rooftop applications. HEATING SYSTEM Lennox Duralok Plus Heat Exchanger Assembly Lennox developed heat exchanger assembly consists of primary heat exchanger and secondary condenser coil assembly. Main 3-pass clamshell type heat exchanger constructed of heavy-gauge, aluminized steel. Designed for normal expansion and contraction. Crimped seam design and construction provides maximum efficiency and minimum resistance to airflow. Secondary heat exchanger condenser coil constructed of aluminum fins fitted to stainless steel tubes. Coil is factory tested for leaks. Condensate drain header box assembly located on front of coil. Compact size of complete heat exchanger assembly permits low overall design of furnace cabinet. All components mounted in a heavy-gauge steel frame. Heat exchanger assembly has been laboratory life cycle tested. Lennox Designed Header Box Header box on end of condenser coil collects flue condensate for disposal through condensate collars. Hose connects the header box drains to the condensate collars. The condensate collars are located on each side of the cabinet for easy field installation of condensate drain trap. Only one collar is used, the remainder stay plugged. Condensate drain trap is included with the unit for field installation. D E F G Lennox Designed Flue Condensate Trap Assembly Condensate trap assembly is mounted outside the conditioned air stream. Assembly can be mounted on either side of cabinet in upflow and downflow applications. Assembly is mounted on the bottom of the cabinet in horizontal applications. See Installation Instructions. Connection can be made with field provided / in. PVC pipe, 3/4 in. PVC coupling, or -/4 in. OD x in. ID tubing with hose clamp. Easy to clean and winterize. Inshot Burners Aluminized steel inshot burners provide efficient, trouble-free operation. Burner venturi mixes air and gas in correct proportion for proper combustion. Burner assembly is removable from the unit as a single component for ease of service. Two-Stage Gas Control Valve 4 volt redundant combination two stage gas control valve combines manual shut off valve (On-Off), automatic electric valve (dual) and gas pressure regulation into a compact combination control. Flame Rollout Switch Manual reset switches are factory installed on burner box. Switch provides protection from abnormal operating conditions. SureLight Hot Surface Ignitor Tough, reliable, long-life, trouble-free performance. Tungsten heater element sandwiched between two plates of silicon nitride. Cemented to steatite block for protection against current leakage. Ignition leads constructed of nickel plated copper enclosed in high temperature Teflon insulation for dependable operation. No electrical noise. Combustion Air Inducer PSC, heavy-duty blower prepurges heat exchanger and safely vents flue products. Pressure switches prove blower operation before allowing gas valve to open. Operates only during heating cycle. Limit Control Automatic reset, primary and secondary limits are accurately located. Primary limit factory installed on vestibule panel on all units, secondary limit factory installed on blower housing. G6MP / Page 3

4 FEATURES H I OPTIONS High Altitude Orifice Kit - Natural Gas Only Required for all natural gas models for proper unit operation at altitudes of 750 to 0,000 feet. Proper orifice for LPG/Propane models is included with LPG/Propane Conversion Kit. High Altitude Pressure Switch Kit Required on certain units for proper unit operation on installations above 4,500 ft. Order two per unit. LPG/Propane Conversion Kit Required for field changeover from natural gas to LPG/ Propane. Natural Gas Conversion Kit Required for field changeover from LPG/Propane to natural gas. BLOWER Multi-speed, direct drive blower. Statically and dynamically balanced. Resiliently mounted. Blower assembly slides out of unit for servicing FILTER (NOT FURNISHED) Filter and provisions for external mounting must be field provided. OPTIONS Air Filter and Rack Kit for Horizontal Return Air (End) Applications Washable or vacuum cleanable polyurethane frame type filter and external end return air rack available for field installation. Rack has filter door for easy filter servicing. Flanges on rack allow easy duct connection. See dimension drawing. Air Filter and Rack Kit for Side Return Air Applications (Not for use with RAB Return Air Base) Washable or vacuum cleanable polyurethane frame type filter and external side return air rack available for field installation. Available in single and ten pack kits. Rack has filter door for easy filter servicing. Flanges on rack allow easy duct connection. Field installs on either side of unit cabinet. See dimension drawing. EZ Filter Base for Bottom Return Air Applications Hinged door with thumbscrew for easy filter access. Uses standard size filters (field provided). J K L M CONTROLS SureLight Integrated Two-Stage Furnace Control Board Solid-state board contains all necessary controls and relays to operate furnace. Combustion air inducer is controlled by board. Prior to ignition, a pre-purge cycle for 5 seconds is initiated. After the main burners are turned off, a post-purge cycle for 5 seconds is run. Adaptive technology of ignition control board continuously monitors and adjusts the ignitor power to operate at minimum ignitor temperature required for ignition, prolonging ignitor life. Electronic flame sensor control assures safe, reliable operation. Should loss of flame occur, flame sensor controls will initiate 5 attempts at re-ignition before locking out unit operation for 60 minutes. Watchguard type circuit automatically resets ignition controls after one hour of continuous thermostat demand after unit lockout, eliminating nuisance calls for service. Jumper settings for single or two stage thermostat operation. Two selectable second stage recognition times (0 and 5 minutes) are available on the board when the furnace is used with a single-stage thermostat. When used with a two-stage thermostat, furnace will only initiate second stage operation with a second stage thermostat demand. Fan control consists of adjustable blower timed-off delay (60, 90, 0, 80 seconds - factory setting 90 seconds) and fixed blower timed-on delay (45 seconds). For air-conditioning applications, blower is automatically energized on thermostat demand for cooling. Adjustable blower timed-off delay in cooling mode ( or 45 seconds - factory setting 45 seconds). Terminal for continuous low speed blower operation. Two accessory terminals furnished for additional power supply requirements for 0 volt (less than amp) power humidifiers and powered air cleaners. 4 Volt Transformer Furnished and factory installed in control box. 40VA transformer has circuit breaker wired in series. Field Wiring Make-up Box Furnished for line voltage wiring. Factory installed internally on left side of furnace. Box may be installed internally or externally on either side of furnace. G6MP / Page 4

5 FEATURES N O P OPTIONS Thermostat See Thermostat bulletins in Controls section and Lennox Price Book for a complete list of thermostats. CABINET -profile, narrow width cabinet allows easy installation in upflow, downflow or horizontal applications. Heavy-gauge, cold rolled steel construction. Pre-painted cabinet finish. Flanges provided on supply air opening for ease of plenum connection or alignment with indoor coil. Fully insulated cabinet with foil faced insulation on sides and back of heating compartment and mat faced insulation in blower compartment. Tool-less latches on blower and burner doors assure positive lock. Complete service access. Safety interlock switch automatically shuts off power to unit when blower compartment access door is removed. Gas piping and electrical inlets are provided in both sides of cabinet. Return Air Entry: For bottom/end return-air entry for upflow/horizontal applications, remove furnished bottom seal panel from cabinet. For side return-air entry (upflow applications only), corners are marked on either side of cabinet for return air cut-outs. On furnaces with side return air and condensate trap on the same side of the cabinet, a field fabricated transition or RAB is required when using an IAQ product higher than 4-3/6 in. installed next to the unit and serviced from the front. IAQ products higher than 0 in. require a field fabricated transition. See dimension drawings. NOTE - 60C and 60D size units that require air volumes over 800 cfm must have one of the following:. Single side return air with transition, to accommodate 0 x 5 x in. cleanable air filter, required to maintain proper air velocity.. Single side return air with optional RAB Return Air Base. 3. Bottom return air. 4. Return air from both sides. 5. Bottom and one side return air. See Blower Performance Tables for additional information. Coil Match-up All furnaces exactly match C33 and CX34 cased upflow indoor coils and CH33 horizontal indoor coils with same letter designation in model number. No adaptor required. Engaging holes furnished on cabinet for alignment. C33 uncased coils match furnaces without any overhang but require an optional adaptor base or field fabricated transition to match furnace opening. See C33 coil bulletin for additional information. All furnaces exactly match CR33 cased, downflow indoor coils with adaptor rails, furnished with coil. OPTIONS Condensate Drain Heat Cable Kits Self-limiting wattage heat cable prevents condensate drain from freezing in unconditioned areas. Available in 6, 4 or 50 ft. lengths. Heat Cable Tape: 66 ft. length, / in. wide fiberglass. 60 ft. length, in. wide aluminum foil. Condensate Trap Alternate Location Kit Allows condensate drain to be installed on the opposite side of the furnace from the exhaust venting (upflow applications only). Downflow Additive Base Required for heating only units installed on combustible floors. Not required in add-on cooling applications. See Dimension Drawing. Horizontal Support Frame Kit Provides support of unit in horizontal applications. Consists of () x -/ x 3-5/8 in. and () x 3 x 53-7/8 in. painted, heavy-gauge cold rolled steel support channels with assembly and suspending holes. Bolts and nuts furnished for field assembly. Suspending rods must be field provided. RAB Return Air Base On furnaces with side return air and condensate trap on the same side of the cabinet, a field fabricated transition or RAB is required when using an IAQ product higher than 4-3/6 in. installed next to the unit and serviced from the front. IAQ products higher than 0 in. require a field fabricated transition. Must be used for 60C and 60D models with air volumes over 800 cfm in upflow applications when only one side return is required. Cabinet is pre-painted steel to match the furnace. See Dimension Drawing. G6MP / Page 5

6 SPECIFICATIONS Gas Model No. G6MP-36B-045 G6MP-36B-070 G6MP-36B-07 G6MP-48C-090 G6MP-60C-090 Heating High Input - Btuh 44,000 66,000 66,000 88,000 88,000 Performance Fire Output - Btuh 4,000 6,000 6,000 8,000 8,000 Temperature rise range - F Gas Manifold Pressure (in. w.g.) - Nat. Gas / LPG/Propane 3.5 / / / / / 0.0 Input - Btuh 30,000 45,000 45,000 60,000 60,000 Fire Output - Btuh 8,000 43,000 43,000 56,000 57,000 Temperature rise range - F Gas Manifold Pressure (in..7 / / / / / 4.9 w.g.) - Nat. Gas / LPG/Propane AFUE 94.% 94.% 95.0% 94.% 94.% High static Connections Intake / Exhaust Pipe (PVC) / / / / / in. Condensate Drain Trap / / / / / (PVC pipe) - i.d. with field supplied (PVC cplg.) 3/4 3/4 3/4 3/4 3/4 - o.d. hose with hose clamp - i.d. x o.d. x -/4 x -/4 x -/4 x -/4 x -/4 Gas pipe size IPS / / / / / Indoor Blower G6MP / Page 6 Wheel nom. dia. x width - in. 0 x 8 0 x 8 0 x 8 0 x 0 -/ x 0 Motor output - hp /3 /3 /3 / Tons of add-on cooling Air Volume Range - cfm Shipping Data lbs. - package Electrical characteristics 0 volts - 60 hertz - phase (less than amps) NOTE - Filters and provisions for mounting are not furnished and must be field provided. Annual Fuel Utilization Efficiency based on DOE test procedures and according to FTC labeling regulations. Isolated combustion system rating for non-weatherized furnaces. SPECIFICATIONS Gas Model No. G6MP-60C-09 G6MP-48C-0 G6MP-60C-0 G6MP-60C- G6MP-60D-35 Heating High Input - Btuh 88,000 0,000 0,000 0,000 3,000 Performance Fire Output - Btuh 83,000 04,000 04,000 04,000 4,000 Temperature rise range - F Gas Manifold Pressure (in. w.g.) - Nat. Gas / LPG/Propane 3.5 / / / / / 0.0 Input - Btuh 60,000 75,000 75,000 75,000 90,000 Fire Output - Btuh 58,000 7,000 7,000 7,000 86,000 Temperature rise range - F Gas Manifold Pressure (in..7 / / / / / 4.9 w.g.) - Nat. Gas / LPG/Propane AFUE 95.0% 94.% 94.% 95.0% 94.% High static Connections Intake / Exhaust Pipe (PVC) / / / / 3 / 3 in. Condensate Drain Trap / / / / / (PVC pipe) - i.d. with field supplied (PVC cplg.) 3/4 3/4 3/4 3/4 3/4 - o.d. hose with hose clamp - i.d. x o.d. x -/4 x -/4 x -/4 x -/4 x -/4 Gas pipe size IPS / / / / / Indoor Blower Wheel nom. dia. x width - in. -/ x 0 0 x 0 -/ x 0 -/ x 0 -/ x 0 Motor output - hp / Tons of add-on cooling Air Volume Range - cfm Shipping Data lbs. - package Electrical characteristics 0 volts - 60 hertz - phase (less than amps) NOTE - Filters and provisions for mounting are not furnished and must be field provided. Annual Fuel Utilization Efficiency based on DOE test procedures and according to FTC labeling regulations. Isolated combustion system rating for non-weatherized furnaces.

7 OPTIONAL ACCESSORIES - MUST BE ORDERED EXTRA FILTER KITS Air Filter and Rack Kit B Width Models C Width Models D Width Models Horizontal (end) Size of filter - in. 87L96-8 x 5 x 87L97-0 x 5 x 87L98-5 x 5 x Side Return Single 44J 44J 44J Ten Pack 66K63 66K63 66K63 Size of filter - in. 6 x 5 x 6 x 5 x 6 x 5 x EZ Filter Base Catalog No. - Ship. Wt. - lbs. 73P56-7 (3) 73P57-8 (4) 73P58-0 (5) CABINET ACCESSORIES Size of field provided filter - in. 6 x 5 x 0 x 5 x 4 x 4 x Downflow Additive Base M60 M6 M6 Horizontal Support Frame Kit 56J8 56J8 56J8 Return Air Base 98M60 98M58 98M59 CONDENSATE DRAIN KITS Condensate Drain Heat Cable 6 ft. 6K68 6K68 6K68 4 ft. 6K69 6K69 6K69 50 ft. 6K70 6K70 6K70 Heat Cable Tape Fiberglass - / in. x 66 ft. 39G04 39G04 39G04 Aluminum foil - in. x 60 ft. 39G03 39G03 39G03 Condensate Trap Alternate Location Kit - Upflow Only 76M0 76M0 76M0 TERMINATION KITS - See Installation Instructions for specific venting information. Termination Kits Direct Vent Applications Only Termination Kits - Direct or Non-Direct Vent Concentric US - in. 7M80 69M in L46 60L46 Canada - in. 44W9 44W in W93 44W93 Wall - Close Couple US - in. G Wall - Close Couple WTK 3 in. 44J40 44J40 44J40 Canada - in. 30G in. 8J0 8J0 8J0 Roof in. 5F75 5F Wall Ring Kit in. 5F74 5F74 3 5F74 Roof Termination Flashing Kit - Direct or Non-Direct Vent - Contains two flashings Cleanable polyurethane frame type filter. Kit contains enough parts for two, non-direct vent installations. 3 Non-direct vent only. 44J4 44J4 44J4 GAS HEAT ACCESSORIES Input High Altitude Orifice Kit Natural Gas Only High Altitude Pressure Switch Kit ORDER TWO EACH LPG/Propane Kit LPG/Propane to Natural Gas Kit 750-0,000 ft ft ft ,000 ft ft ,000 ft ft ,000 ft W W48 44W50 44W49 44W W W M06 44W48 44W50 44W49 44W W M8 4W49 4W49 6W83 44W48 44W50 44W49 44W M W M 56M 44W48 44W50 44W49 44W W M8 6W85 6W85 6W86 44W48 44W50 44W49 44W M8-0 44W M 44W48 44W50 44W49 44W W5-47M8 56M 56M 56M3 44W48 44W50 44W49 44W M W M93 56M93 44W48 44W50 44W49 44W W5 High Altitude Orifice Kit is required and must be ordered separately for applications from 750 to 0,000 ft. G6MP / Page 7

8 EXHAUST PIPE VENTING TABLE (For altitudes of 0-0,000 ft) Vent Pipe Diameter G6MP-36B-045 G6MP-36B-070 G6MP-36B-07 Maximum Equivalent Vent Length - ft. G6MP-36C-090 G6MP48C-090 G6MP-60C-090 G6MP-60C-09 G6MP-60C-0 G6MP-60C- 3 G6MP-60D-35 in not not -/ in not 3 in ( ft.) 4 46 (450-0,000 ft.) 4 in NOTE - Minimum Equivalent Vent Pipe length is 5 feet (4.6 m). Maximum Equivalent Vent Length permitted is defined as Total Length (linear feet) of vent pipe, plus equivalent length (ft.) of fittings, plus equivalent length (ft.) of termination. 0 models installed in upflow or downflow applications must have the supplied 90 street ell installed directly into the unit flue collar. The street ell must be included in the elbow count models installed in upflow or downflow applications must have 3 in. to in. reducing elbow (supplied) installed directly into the flue collar. Reducing ell must be included in elbow count elbows must be limited to sweep type elbows. VENTING NOTES - One 90 elbow is equivalent to 5 feet of straight vent pipe. Two 45 elbows are equal to one 90 elbow. One 45 elbow is equivalent to.5 feet of straight vent pipe. Wall and roof termination (non-concentric) exhaust pipe must terminate with reducer to improve exhaust velocity away from intake piping. 045 and 070 -, -/, 3 or 4 in. - terminate with -/ in. pipe 090 -, -/, 3 or 4 in. - terminate with in. pipe 0 - -/, 3 or 4 in. - terminate with in. pipe 35-3 or 4 in. - terminate with in. pipe TERMINATION KITS - EQUIVALENT VENT LENGTHS Input Size Vent Pipe Diameter in. G6MP / Page 8 Concentric Kits Vent Pipe Equivalent Length - ft. Close Couple Kits Wall Ring Kit Outdoor Exhaust Accelerator (Diameter X Length) For use with Close Couple and Wall Ring Kits in. 3 in. in. 3 in. in. -/ x in. x in. 4 7M W9 69M9 60L46 44W93 G44 44J40 30G8 (WTK) 8J0 (WTK) 5F74 Field Provided -045 not not not -/ not not not -/ not not not -/ not not not -/ not 5 not not Requires field provided -/ in. outdoor exhaust accelerator. Requires field provided in. outdoor exhaust accelerator. 3 For use only in non-direct vent applications, when snow riser is not required. Requires field provided in. outdoor exhaust accelerator. 4 Outdoor exhaust accelerator is furnished in 7M80 and 44W9 kits and is required when used with models. The accelerator is not used with models.

9 INSTALLATION CONFIGURATIONS VENT PIPING UPFLOW FLOW DOWNFLOW HORIZONTAL RIGHT VENT PIPING HEAT EXCHANGER BLOWER BLOWER HEAT EXCHANGER FLOW VENT PIPING CONDENSATE DRAIN HORIZONTAL LEFT CONDENSATE DRAIN BLOWER HEAT EXCHANGER VENT PIPING FLOW CONDENSATE DRAIN NOTE On upflow and downflow configurations, the vent piping and condensate drain can be moved to the other side of the unit. Vent piping and drain must be installed on the same side of the unit with each other unless optional Condensate Trap Alternate Location Kit (upflow only) is used. On horizontal installations the drain must be located at the bottom and the vent piping at the top. FLOW HEAT EXCHANGER CONDENSATE DRAIN BLOWER FILTER RESISTANCE For Inch Cleanable Filter (Field Provided) cfm INSTALLATION CLEARANCES Sides Rear Top/Plenum Front Front (service/alcove) Floor 0 inches (0 mm) 0 inches (0 mm) inch (5 mm) 0 inches (0 mm) 4 inches (60 mm) Combustible NOTE - Air for combustion must conform to the methods outlined in the National Fuel Gas Code (NFPA 54/ANSI-Z3.) or the National Standard of Canada CAN/CSA-B49. Natural Gas and Propane Installation Code. NOTE - In the U.S. flue sizing must conform to the methods outlined in the current National Fuel Gas Code (NFPA 54/ANSI-Z3.) or applicable provisions of local building codes. In Canada flue sizing must conform to the methods outlined in National Standard of Canada CAN/ CSA-B49.. Allow proper clearances to accommodate condensate trap and vent pipe installation. Clearance for installation on combustible floor if optional additive base is installed between furnace and combustible floor. Not required in add-on cool ing applications if installed in accordance with local codes or National Fuel Gas Code ANSI-Z3. or CAN/CGA-49.,.. Do not install the furnace directly on carpeting, tile, or other combustible materials other than wood flooring. G6MP / Page 9

10 DIMENSIONS - INCHES (MM) - UPFLOW POSITION SHOWN NOTE - 60C and 60D size units that require air volumes over 800 cfm (850 L/s) must have one of the following: a. Single side return air with transition, to accommodate 0 x 5 x in. (508 x 635 x 5 mm) air filter. Required to maintain proper air velocity. b. Single side return air with optional RAB Return Air Base c. Bottom return air. d. Return air from both sides. e. Bottom and one side return air. SUPPLY OPENING See Blower Performance Tables for additional information. Optional External Side Return Air Filter Kit (Upflow Only) is not for use with the optional RAB Return Air Base. A B 9/6 (4) OPTIONAL EXTERNAL SIDE RETURN FILTER KIT (Either Side) 5-/ (40) 6-/ (65) 3-3/4 (603) 5 (635) TOP VIEW 8-/ (74) 9-7/6 (494) 9/6 (4) OPTIONAL EXTERNAL SIDE RETURN FILTER KIT (Either Side) 40 (06) -5/8 (95) Right 9-3/4 (48) Left 6-/ (65) 4-/8 (03) 4-7/8 (4) Right -/4 (57) Left 6-3/4 (7) -/ (64) 3-/8 (79) COMBUSTION INTAKE (Either Side) EXHAUST OUTLET (Either Side) GAS PIPING INLET (Either Side) CONDENSATE TRAP CONNECTION (Either Side) ELECTRICAL INLET (Either Side) FLOW 4-3/4 (375) 6 (406) 8-3/4 (476) 4 (0) 3 (584) OPTIONAL RETURN CUTOUT (Either Side) Upflow Only 4 (356) -5/6 (49) 3/4 (9) C 3/4 (9) Bottom Return Air Opening FRONT VIEW 5/8 (6) 4-/4 (08) 3-/ (597) Bottom Return Air Opening SIDE VIEW Model No. A B C in. mm in. mm in. mm G6MP-36B-045 G6MP-36B / / G6MP-36B-07 G6MP-48C-090 G6MP-60C-090 G6MP-60C-09 G6MP-48C / / 495 G6MP-60C-0 G6MP-60C- G6MP-60D-35 4-/ 6 3-3/ G6MP / Page 0

11 DIMENSIONS INCHES (MM) - FURNACE/COIL COMBINED DIMENSIONS UPFLOW POSITION A 40 (06) Furnace Width B DOWNFLOW POSITION 40 (06) UPFLOW POSITION Uncased Cased (CX34 - cased only) Model No A B A B in. mm in. mm in. mm in. mm C33-8A -/ 38 5-/ / /4 64 CX34-9A-6F C33-9A 6-/ / / /4 64 C33-4A 6-/ / CX34-8/4A-6F CX34-8/4B-6F C33-4B CX34-8/4C-6F C33-4C 6-/ / / /8 368 CX34-5A-6F C33-5A 8-/ / / /4 49 CX34-5B-6F C33-5B 8-/ / / /8 49 CX34-30B-6F C33-30B CX34-30C-6F C33-30C 0-/ 5 60-/ / /4 467 CX34-30A-6F C33-30A 0-/ 5 60-/ CX34-3A-6F C33-3A -/ 57 6-/ 588 -/ /4 556 CX34-3B-6F C33-3B -/ 57 6-/ / /4 530 CX34-36A-6F C33-36A 4-/ 6 64-/ 638 -/ /8 578 CX34-36B-6F C33-36B 4-/ 6 64-/ 638-7/ /8 57 CX34-36C-6F C33-36C 4-/ 6 64-/ 638 -/ /4 556 CX34-38A-6F C33-38A 4-/ 6 64-/ 638 -/ /4 58 CX34-38B-6F C33-38B 4-/ 6 64-/ CX34-4B-6F C33-4B 4-/ 6 64-/ 638-7/ /8 57 CX34-43B-6F C33-43B 7-/ / 75 6-/ /4 683 CX34-43C-6F C33-43C 7-/ / / /4 670 C33-44C 4-/ 6 64-/ 638 -/ / 56 CX34-44/48B-6F C33-48B 4-/ 6 64-/ 638 -/ /8 578 CX34-44/48C-6F C33-48C 4-/ 6 64-/ 638 -/ / 56 CX34-49C-6F C33-49C 9-/ / / / 740 CX34-50/60C-6F C33-50/60C7-/ / / /4 645 Overall CX34-60D-6F C33-60D 5-/ / / /4 645 Height CX34-6C-6F C33-6C 3-/ / / /8 793 CX34-6D-6F C33-6D 9-/ / / /4 746 Coil Width HORIZONTAL B 40 (06) Coil Height DOWNFLOW POSITION Furnace Overall Model Coil Width Coil Height Width Height Number in. mm in. mm in. mm in. mm CR33-8A-F 7-/ / / /8 375 CR33-4A-F 7-/ / / /4 353 CR33-4B-F 7-/ / / /4 353 CR33-30/36A-F 7-/ / / /8 46 CR33-30/36B-F 7-/ / / /8 46 CR33-30/36C-F / /8 46 CR33-48B-F / CR33-48C-F CR33-50/60C-F 4-/ / /8 36 CR33-60D-F 4-/ 6 4-/ 6 3-5/ /8 36 A HORIZONTAL POSITION Model Number A B in. mm in. mm CH33-8A-F -/ / 56 CH33-4/30A-F CH33-36A-F CH33-36B-F CH33-36C-F CH33-44/48B-F CH33-50/60C-F CH33-4B-F CH33-48C-F CH33-60D-F 6-/ / 689 CH33-6D-F 3-/ / 86 G6MP / Page

12 OPTIONAL ACCESSORY DIMENSIONS - INCHES (MM) RAB RETURN BASE (Upflow Applications Only) For use with B, C, and D size furnaces only 4 (0) FLOW 4 (356) 7 /4 (84) CONDENSATE TRAP FURNACE FRONT 4 (356) 4 (0) 3 (584) Overall (Maximum) Unit side return air Opening 5 5/8 (43) SIDE RETURN OPENINGS (Either Side) Minimum (79) Maximum 4 (356) 0 / (5) Overall (Maximum) 7 / (446) RAB B (98M60) (533) RAB C (98M58) 4 / (6) RAB D (98M59) OPTIONAL RAB RETURN BASE 7/8 () 3 (584) 7 5/8 (70) SIDE VIEW FRONT VIEW Both the unit return air opening and the base return air opening must be covered by a single plenum or IAQ cabinet. Minimum unit side return air opening dimensions for units requiring 800 cfm or more of air (W x H): 3 x in. (584 x 79 mm). The opening can be cut as needed to accommodate plenum or IAQ cabinet while maintaining dimensions shown. Side return air openings must be cut in the field. There are cutting guides stenciled on the cabinet for the side return air opening. The size of the opening must not extend beyond the markings on the furnace cabinet. 4 inches (356 mm) is the maximum size the height of the unit opening can be cut. This may interfere with the condensate drain (if located on the same side of the unit as the opening). To minimize pressure drop, the largest opening height possible (up to 4 inches) is preferred. NOTE Optional Side Return Air Filter Kits are not for use with RAB Return Air Base. DOWNFLOW COMBUSTIBLE FLOORING BASE -/ (38) 3/4 (9) SUPPLY OPENING DOWN FLOW FURNACE -/ (38) B 9-3/6 (503) -/ (38) 7-/4 (69) -3/6 (554) Front Of Furnace A -/ (38) TOP VIEW SIDE VIEW G6MP / Page (559) C DOWNFLOW COMBUSTIBLE FLOORING BASE FLOOR OPENING Model No. G6MP-36B-045 G6MP-36B-070 G6MP-36B-07 G6MP-48C-090 G6MP-60C-090 G6MP-60C-09 G6MP-48C-0 G6MP-60C-0 G6MP-60C- A B C in. mm in. mm in. mm 9-9/ / / / /6 50 -/4 565 G6MP-60D / / /4 654

13 OPTIONAL ACCESSORY DIMENSIONS - INCHES (MM) HORIZONTAL FILTER KIT 4 3/4 (69) 5/8 (6) -/4 (3) A 5/8 (6) 5/8 (6) B RETURN OPENING 3 / (597) SIDE VIEW 5/8 (6) FLOW FILTER (Furnished) FRONT VIEW Catalog A B Number inch mm inch mm 87L / L / L /4 603 CONCENTRIC WALL TERMINATION APPLICATIONS CONCENTRIC ROOF TERMINATION APPLICATIONS EXHAUST OUTSIDE WALL INTAKE EXHAUST (305) Minimum Above Average Snow Accumulation FLASHING (Not Furnished) INTAKE CLAMP (Not Furnished) INTAKE (305) Minimum Above Grade or Average Snow Accumulation CLAMP SHEET METAL STRAP (Clamp and sheet metal strap must be field installed to support the weight of the termination kit.) GRADE ELBOW (Field Supplied) A 3 / (89) in. kits 4 / (4) 3 in. kits 7M80 / 69M9 / 44W9 inch kits 60L46 / 44W93 3 inch kits See Installation Instructions for additional information. Note - Field provided reducer may be required to adapt larger vent pipe size to termination. TERMINATION ASSEMBLY (Furnished) 6 / (65) INTAKE 6 (5) EXHAUST Outdoor Exhaust Accelerator included with 7M80/44W9 Cat. No. 7M80 69M9 44W9 (Canada) A B in. mm in. mm 33 3/ / / L / / W93 (Canada) 36 / / 495 NOTE Typical illustration for dimensions only. Design may vary depending on kit ordered. G6MP / Page 3

14 OPTIONAL ACCESSORY DIMENSIONS - INCHES (MM) WALL ASSEMBLY TERMINATION KIT RING KIT 5F74 inch (5 mm) See Installation Instructions for specific usage. DIRECT VENT APPLICATION NOTE in. (305 mm) minimum height above average snow accumulation. NON DIRECT VENT APPLICATION Kit Contains Enough Parts For Two Installations average snow accumulation. in. (305 mm) maximum without support in. (305 mm) maximum without support 8 in. (03 mm) minimum 6 in. (5 mm) maximum If Intake and Exhaust Pipe is less than in. (305 mm) above snow accumulation or other obstructions, field fabricated piping must be installed. WALL TERMINATION KITS (CLOSE-COUPLE) EXTENDED VENT FOR GRADE CLEARANCE inch (5 mm) G44 (US), 30G8 (WTK Canada) 3 inch (76 mm) 44J40 (US), 8J0 (WTK Canada) See Installation Instructions for additional information. *WALL SUPPORT INTAKE 6 (5) Maximum (305) MAX. for (5) Dia. Exhaust 0 (508) MAX. for 3 (76) Dia. Exhaust 6 (5) Minimum EXHAUST INTAKE 5 (7) (305) / (3) FOAM INSULATION (Field Furnished) EXHAUST (305) MAX. for (5) Dia. Exhaust 0 (508) MAX. for 3 (76) Dia. Exhaust (305) Minimum Above Grade or Average Snow Accumulation GRADE 5-/ (40) (305) Minimum Above Grade or Average Snow Accumulation GRADE G6MP / Page 4

15 OPTIONAL ACCESSORY DIMENSIONS - INCHES (MM) (305) DIRECT VENT APPLICATIONS WTK WALL ASSEMBLY TERMINATION KIT (CANADA ONLY) WITH FIELD FABRICATION ABOVE GRADE EXTENDED CLEARANCE 30G8 inch (5 mm) 8J0 3 inch (76 mm) See Installation Instructions for additional information. If Intake and Exhaust Pipe is less than in. (305 mm) above snow accumulation or other obstructions, field fabricated piping must be installed. EXHAUST INTAKE EXHAUST INSULATION (Not Furnished) INTAKE 5 (7) 5-/ (40) GRADE 8 (03) Minimum (305) Minimum Above Grade or Average Snow Accumulation GRADE in. (305 mm) - in. (5 mm) dia. exhaust pipe 0 in. (508 mm) - 3 in. (76 mm) dia. exhaust pipe maximum length without support G6MP / Page 5

16 BLOWER/WATTS DATA G6MP-36B-045 PERFORMANCE (Less Filter) External Static Pressure Air Volume / Watts at Different Blower Speeds High Medium- High Medium- cfm Watts cfm Watts cfm Watts cfm Watts NOTES - All air data is measured external to unit without filter (not furnished - field provided). Air volume based on bottom air return air. Actual air volume may vary on side return air applications G6MP-36B-07 PERFORMANCE (Less Filter) External Static Pressure Air Volume / Watts at Different Blower Speeds High Medium- High Medium- cfm Watts cfm Watts cfm Watts cfm Watts NOTES - All air data is measured external to unit without filter (not furnished - field provided). Air volume based on bottom air return air. Actual air volume may vary on side return air applications G6MP-36B-070 PERFORMANCE (Less Filter) External Static Pressure Air Volume / Watts at Different Blower Speeds High Medium- High Medium- cfm Watts cfm Watts cfm Watts cfm Watts NOTES - All air data is measured external to unit without filter (not furnished - field provided). Air volume based on bottom air return air. Actual air volume may vary on side return air applications G6MP-48C-090 PERFORMANCE (Less Filter) External Static Pressure Air Volume / Watts at Different Blower Speeds High Medium- High Medium- cfm Watts cfm Watts cfm Watts cfm Watts NOTES - All air data is measured external to unit without filter (not furnished - field provided). Air volume based on bottom air return air. Actual air volume may vary on side return air applications G6MP-48C-0 PERFORMANCE (Less Filter) External Static Pressure G6MP / Page 6 Air Volume / Watts at Different Blower Speeds High Medium- High Medium- cfm Watts cfm Watts cfm Watts cfm Watts NOTES - All air data is measured external to unit without filter (not furnished - field provided). Air volume based on bottom air return air. Actual air volume may vary on side return air applications

17 BLOWER/WATTS DATA G6MP-60C-090 PERFORMANCE (Less Filter) External Static Pressure Bottom Return Air, Side Return Air with Optional RAB Return Air Base, Return Air from Both Sides or Return Air from Bottom and One Side. Air Volume / Watts at Different Blower Speeds Single Side Return Air - Air volumes in bold require field fabricated transition to accommodate 0 x 5 x in. air filter in order to maintain proper air velocity. High Medium-High Medium- High Medium-High Medium- cfm Watts cfm Watts cfm Watts cfm Watts cfm Watts cfm Watts cfm Watts cfm Watts NOTES - All air data is measured external to unit without filter (not furnished - field provided). G6MP-60C-09 PERFORMANCE (Less Filter) External Static Pressure Bottom Return Air, Side Return Air with Optional RAB Return Air Base, Return Air from Both Sides or Return Air from Bottom and One Side. Air Volume / Watts at Different Blower Speeds Single Side Return Air - Air volumes in bold require field fabricated transition to accommodate 0 x 5 x in. air filter in order to maintain proper air velocity. High Medium-High Medium- High Medium-High Medium- cfm Watts cfm Watts cfm Watts cfm Watts cfm Watts cfm Watts cfm Watts cfm Watts NOTES - All air data is measured external to unit without filter (not furnished - field provided). G6MP-60C-0 PERFORMANCE (Less Filter) External Static Pressure Bottom Return Air, Side Return Air with Optional RAB Return Air Base, Return Air from Both Sides or Return Air from Bottom and One Side. Air Volume / Watts at Different Blower Speeds Single Side Return Air - Air volumes in bold require field fabricated transition to accommodate 0 x 5 x in. air filter in order to maintain proper air velocity. High Medium-High Medium- High Medium-High Medium- cfm Watts cfm Watts cfm Watts cfm Watts cfm Watts cfm Watts cfm Watts cfm Watts NOTES - All air data is measured external to unit without filter (not furnished - field provided). G6MP / Page 7

18 BLOWER/WATTS DATA G6MP-60C- PERFORMANCE (Less Filter) External Static Pressure Bottom Return Air, Side Return Air with Optional RAB Return Air Base, Return Air from Both Sides or Return Air from Bottom and One Side. Air Volume / Watts at Different Blower Speeds Single Side Return Air - Air volumes in bold require field fabricated transition to accommodate 0 x 5 x in. air filter in order to maintain proper air velocity. High Medium-High Medium- High Medium-High Medium- cfm Watts cfm Watts cfm Watts cfm Watts cfm Watts cfm Watts cfm Watts cfm Watts NOTES - All air data is measured external to unit without filter (not furnished - field provided). G6MP-60D-35 PERFORMANCE (Less Filter) External Static Pressure Bottom Return Air, Side Return Air with Optional RAB Return Air Base, Return Air from Both Sides or Return Air from Bottom and One Side. Air Volume / Watts at Different Blower Speeds Single Side Return Air - Air volumes in bold require field fabricated transition to accommodate 0 x 5 x in. air filter in order to maintain proper air velocity. High Medium-High Medium- High Medium-High Medium- cfm Watts cfm Watts cfm Watts cfm Watts cfm Watts cfm Watts cfm Watts cfm Watts NOTES - All air data is measured external to unit without filter (not furnished - field provided). G6MP / Page 8

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20 REVISIONS Document Added specifications, ratings and dimensions for 95% AFUE models (G6MP-36B-07, G6MP-60C-09, G6MP-60C-) Visit us at For the latest technical information, Contact us at LENNOX NOTE - Due to Lennox ongoing commitment to quality, Specifications, Ratings and Dimensions subject to change without notice and without incurring liability. Improper installation, adjustment, alteration, service or maintenance can cause property damage or personal injury. Installation and service must be performed by a qualified installer and servicing agency. 009 Lennox Industries, Inc.