Lennox G61MPVT User Instructions

G A S F U R N A C E S

G61MPVT

Multi−Position − Two−Stage Heat

Variable−Speed − 50HZ

E N G I N E E R I N G D A T A Bulletin No. 490115

December 2006

MODEL NUMBER IDENTIFICATION

G 61 36−B− 070

MP

Unit Type

G = Gas Furnace

Series

61 = Two−Stage

Configuration

MP = Multi−Position

Blower

V = Variable Speed Blower

Voltage

T = 240V−1ph−50hz

Nominal Add−On Cooling Capacity

36 = 10.5 kW
60 = 17.6 kW

Australian Gas Association Rating − 5.3 Stars

Input − 69.6 to 139.3 Mj/h

Nominal Add−on Cooling − 10.5 to 17.6 kW

V T −1

Version

Gas Heat Input

070 = 69.6 Mj/h
090 = 92.8 Mj/h
110 = 116.1 Mj/h
135 = 139.3 Mj/h

1

Cabinet Width

B = 445 mm
C = 533 mm
D = 622 mm

1

Indoor coils with the same letter designation will physically match the furnace.

FEATURES

CONTENTS

Blower Data Pages 12−13. . . . . . . . . . . . . . . . . . . . . . . .

Dimensions Pages 8−11. . . . . . . . . . . . . . . . . . . . . . . . . .

Exhaust Pipe Venting Information Page 6. . . . . . . . . .

Features and Options Pages 2−4. . . . . . . . . . . . . . . . . . .

Filter Air Resistance Page 7. . . . . . . . . . . . . . . . . . . . . .

Installation Clearances Page 7. . . . . . . . . . . . . . . . . . . .

Model Number Identification Page 1. . . . . . . . . . . . . . .

Optional Accessories Selection Table Page 5. . . . . . .

Specifications Page 5. . . . . . . . . . . . . . . . . . . . . . . . . . . .

WARRANTY

Duralok Plus® Aluminized Steel Heat Exchanger − Ten
year limited warranty in residential applications, five

year limited warranty in non−residential applications.
All other covered components − Five years limited
warranty in residential applications, two year limited
warranty in non−residential applications.
Refer to Lennox Equipment Limited Warranty certificate
included with equipment for details.

APPROVALS

Australian Gas Association approval.
Blower data from unit tests conducted in Lennox
Laboratory air test chamber.

NERGY STAR

E
units are designed to use less energy, help save money
on utility bills, and help protect the environment
ISO 9001 Registered Manufacturing Quality System.

APPLICATIONS

Input capacities of 69.6, 92.8, 116.1 and 139.3 Mj/h
Australian Gas Association Rating − 5.3 Stars
Compact cabinet for up−flow, down−flow, horizontal−left
or horizontal−right applications without any internal
modifications to the unit.

G61MPVT−60D−135 can only be installed in
horizontal−right or down−flow applications.

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.

DIRECT VENT / NON−DIRECT VENT

Furnace can be installed in either Direct Vent or
Non−Direct applications. G61MPVT−60D−135 can only
be installed in direct vent 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

50 or 80 mm (2 or 3 inch) kit contains concentric
termination assembly, reducer bushing and 45 degree
elbow.
50 mm (2 inch) kit for −070 models contains an exhaust
accelerator.
Kit requires single hole penetration of roof or wall for
installation.

®

(US Department of Energy) certified

B

D

E

M

G

F

N

C

J

H

K

I

HEATING SYSTEM

Lennox Duralok Plus

B

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

C

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.

®

Heat Exchanger Assembly

L

G61MPVT − 50hz / Page 2

FEATURES

HEATING SYSTEM − continued

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
up−flow and down−flow applications. Assembly is mounted
on the bottom of the cabinet in horizontal applications. See
Installation Instructions.
Connection can be made with field provided 1/2 in. PVC
pipe, 3/4 in. PVC coupling, or 1−1/4 in. OD x 1 in. ID tubing
with hose clamp.
Easy to clean and winterize.

Inshot Burners

D

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

E

24 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.

Hot Surface Mini−Nitride Ignitor

Unique, non−porous, high strength proprietary ceramic
material provides long life and trouble−free
maintenance.
Low mass element provides fast heat−up and consistent
igniter temperature with low power usage.
Cemented to alumina block for positive mounting and
protection against current leakage.
High temperature Teflon
for dependable operation.

Combustion Air Inducer

F

PSC, heavy−duty blower prepurges heat exchanger and
safely vents flue products.
Pressure switches prove blower operation before

G

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.

OPTIONS

High Altitude Pressure Switch Kit

Required on certain units for proper unit operation on
installations above 610 m.
Units not approved for installations above 1372 m.
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.

®

insulated ignition lead wires

CONTROLS

Integrated Two Stage / Variable Speed Blower

H

Control

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 15 seconds is initiated.
After the main burners are turned off, a post−purge cycle
for 5 seconds is run.
Electronic flame sensor assures safe, reliable
operation.
Should flame fail to ignite, flame sensor will initiate 4
re−attempts at 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.
To aid in troubleshooting, the last three fault codes are
stored for a maximum of six months. Displays the fault
codes through indicator LED’s.
Jumper settings for 1 or 2 stage thermostat operation.
Two selectable 2nd stage recognition times (10 and 15
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.
Two accessory terminals furnished for additional power

I

supply requirements for 240 volt (less than 1 amp)
power humidifiers and powered air cleaners.
Two blower speeds − second stage heat and second
stage cool (with four air volume selections for each) are
selected by DIP switches on board. Heat speed can be
adjusted to optimize discharge temperature. Cool
speed can be adjusted to correct optional cooling
capacity. See Blower Performance tables.
First stage blower speed is a percentage of 2nd stage
speed.
The ADJUST switch (DIP) allows normal (NORM), 10%
higher (+ plus) or 10% lower
selection within HEAT and COOL speeds selected for
fine tuning air volume.
DELAY switch (DIP) allows one of four de−humidification
profiles during cooling mode.

Profile A − Motor runs at 50% for 30 seconds, then at
82% for 7−1/2 minutes, then at 100% (if needed) until
demand is satisfied. Once demand is met, motor runs
at 50% for 30 seconds, then ramps down to stop.
Profile B − Motor runs at 82% for 7−1/2 minutes and
then at 100% (if needed) until demand is satisfied.
Once demand is met,motor ramps down to stop.
Profile C − Motor runs at 100% until demand is
satisfied. Once demand is met, motor runs at 100% for
60 seconds, then ramps down to stop.
Profile D − Motor runs at 100% until demand is satisfied.

Once demand is met, motor ramps down to stop.
In heat mode, blower on time is fixed at 45 seconds,
blower off time is adjustable from 60, 90, 120 and 180
seconds (factory setting − 90 seconds).

Power Lead

2.5 m power lead is provided for connection to an IEC
receptacle located on the right side of the furnace.

IEC Receptacle

IEC receptacle provided on right side of furnace cabinet
for easy, plug−in electrical connection.

24 Volt Transformer

Furnished and factory installed on blower wrapper.
40VA transformer has circuit breaker wired in series.

( minus) motor speed

G61MPVT − 50hz / Page 3

FEATURES

CONTROLS − CONTINUED

OPTIONS

SignatureStatt Home Comfort Control

Combination temperature
and humidity.
2 Heat/2
Cool
Auto−changeover
Controls humidity during
cooling operation.
Easy−to−use, menu
driven thermostat with a back−lit, dot−matrix LCD
screen.
Remote outdoor sensor (furnished) allows the
thermostat to display outdoor temperature and adjust
indoor dewpoint temperature for precision humidity
control in cooling mode.
See the SignatureStat Engineering Handbook bulletin in
the Controls section for more information.

BLOWER

Variable Speed Direct Drive Blower

J

Each blower assembly statically and dynamically
balanced.
Change in blower speed is easily accomplished by
simple DIP switch change on Integrated Furnace Two
Stage / Variable Speed Blower Control.
See Blower Performance tables.
Blower assembly easily removed for servicing

Variable Speed Blower Motor

K

Variable speed motor maintains specified air volume
from 0 though 200 Pa static range.
Motor is controlled by Integrated Furnace Two Stage /
Variable Speed Blower Control.
Motor is resiliently mounted.

FILTER (NOT FURNISHED)

Filter and provisions for external mounting must be field
provided.

CABINET

Low−profile, narrow width cabinet allows easy
installation in up−flow, down−flow 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

L

and back of heating compartment and mat faced
insulation in blower compartment.
Tool−less latches on blower and burner doors assure

M

positive lock.
Complete service access.
Safety interlock switch automatically shuts off power to
unit when blower compartment access door is removed.
Gas piping inlets are provided in both sides of cabinet.

N

Return Air Entry:

For bottom/end return−air entry for up−flow/horizontal
applications, remove furnished bottom seal panel from
cabinet.
For side return−air entry (up−flow 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
is required when using an IAQ (indoor air quality)
product higher than 360 mm installed next to the unit
and serviced from the front. IAQ products higher than
508 mm require a field fabricated transition. See
dimension drawings.

NOTE − 60C and 60D size units that require air
volumes over 850 L/s must have one of the
following:

1. Single side return air with transition, to accommodate
508 x 635 x 25 mm cleanable air filter, required to
maintain proper air velocity.

2. Bottom return air.

3. Return air from both sides.

4. Bottom and

See Blower Performance Tables for additional
information.

Coil Match−up

All furnaces exactly match C33 and CX34 cased up−flow
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, down−flow
indoor coils with adaptor rails, furnished with coil.

OPTIONS

Condensate Trap Alternate Location Kit

Allows condensate drain to be installed on the opposite
side of the furnace from the exhaust venting (up−flow
applications only).

Down−Flow Combustible Floor Base

Required for heating only units installed on combustible
floors.
Not required in add-on cooling applications.
See Dimension Drawing.

one side return air.

G61MPVT − 50hz / Page 4

SPECIFICATIONS

Performance

Input

Gas
Heating

Connections
in.

with field supplied (PVC cplg.) − o.d. 3/4 3/4 3/4 3/4

Indoor
Blower

ShippingData kg − 1 package 68 82 85 94

Electricalcharacteristics 240 volts − 50 hertz − 1 phase (less than 10 amps)

NOTE − Filters and provisions for mounting are not furnished and must be field provided.

High

Fire

Temperature rise range − C 25 − 41 22 − 39 28 − 44 36 − 53

Gas Manifold Pressure

(Natural Gas) − Pa

Low

Fire

Temperature rise range − C 14 − 31 11 − 28 17 − 33 22 − 39

Gas Manifold Pressure

(Natural Gas) − kPa

Australian Gas Association

Energy Rating − Stars

Intake / Exhaust Pipe (PVC) 2 / 2 2 / 2 2 / 2 3 / 3

Condensate Drain Trap

hose with hose clamp − i.d. x o.d. 1−1/4 x 1 1−1/4 x 1 1−1/4 x 1 1−1/4 x 1

GaspipesizeIPS 1/2 1/2 1/2 1/2

Wheel nom. dia. x width −mm 203 x 508 292 x 508 292 x 508 292 x 508

kW ofadd−oncooling 7.0 − 12.2 12.2 − 17.6 12.2 − 17.6 12.2 − 17.6

Air Volume Range − L/s 295 − 660 410 − 1020 350 − 1045 430 − 1035

ModelNo. G61MPVT−36B−070 G61MPVT−60C−090 G61MPVT−60C−110 G61MPVT−60D−135

Input− Mj/h 69.6 92.8 116.1 139.3

Output− kW 17.9 23.7 29.0 35.7

0.87 0.87 0.87 0.87

Input− Mj/h 47.5 63.3 79.1 95.0

Output− kW 12.6 16.7 21.1 25.5

0.42 0.42 0.42 0.42

5.3 5.3 5.3 5.3

Highstatic− Pa 200 200 200 200

1/2 1/2 1/2 1/2

(PVC pipe) − i.d.

Motoroutput − W 373 745 745 745

OPTIONAL ACCESSORIES − MUST BE ORDERED EXTRA

B" Width Models C" Width Models D" Width Models

CABINET ACCESSORIES

Down−Flow Combustible Floor Base 11M60 11M61 11M62

CONDENSATE DRAIN KITS

Condensate Trap Alternate Location Kit − Up−Flow Only 76M20 76M20 − − −

CONTROLS
TERMINATION KITS − See Installation Instructions for specific venting information.

Concentric Termination Kits − Direct Vent
Applications Only

GAS HEAT ACCESSORIES

High Altitude Pressure Switch Kit

Input

−070 56M23 59M13 59M13 59M87 59M87

−090 56M23 59M13 59M13 59M87 59M87

−110 75M22 59M13 59M13 59M87 59M87

−135 Not allowed 59M13 Not allowed 59M87 Not allowed

ORDER TWO EACH

611 − 1372 m 0 − 610 m 611 − 1372 m 0 − 610 m 611−1372 m

50 mm (2 in.) 71M80 69M29 − − −

80 mm (3 in.) − − − 60L46 60L46

LPG/Propane Kit LPG/Propane to

Natural Gas Kit

G61MPVT − 50hz / Page 5

HIGH ALTITUDE INFORMATION

Vent Pipe

G61MPVT

G61MPVT

G61MPVT

G61MPVT

G61MPVT

G61MPVT

G61MPVT

G61MPVT

Heat Size

(Di

th)

070

090
110

135

Pressure regulator adjustment will be required depending on altitude. See below for proper pressure regulator setting.

Manifold Pressure (Outlet) at High Fire − kPa

Altitude − m

Fuel

0−610

1

611−914

1

915−1219

1

1220−1372

Natural 0.87 0.80 0.75 0.70

2

LPG/Propane 2.49 2.29 2.12 2.02

1

High Altitude Pressure Switch Kits required for certain models, see Gas Heat Accessories table for order number.

2

LPG/Propane conversion kit required, see Gas Heat Accessories table for order number.

EXHAUST PIPE VENTING TABLE

For altitudes of 0−610 m

1

Maximum Equivalent Vent Length − m

Vent Pipe G61MPVT G61MPVT

Diameter

−36B−070

−60C−090

2

G61MPVT

−60C−110
50 mm (2 in.) 12.2 4.5 not allowed not allowed 7.6 not allowed not allowed not allowed
80 mm (3 in.) 16.1 12.2 12.2 7.6 10 7.6 7.6 not allowed

100 mm (4 in.) 44 34.5 30 20 27.5 21.5 18.7 not allowed

NOTE − Minimum Equivalent Vent Pipe length is 4.6 m.

1

Maximum Equivalent Vent Length" permitted is defined as Total Length (linear meters) of vent pipe, plus equivalent length (m) of fittings, plus equivalent length (m) of termination".

2

110 models installed in up−flow or down−flow 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.

3

135 models installed in down−flow applications must have 80 to 50 mm (3 in. to 2 in.) reducing elbow (supplied) installed directly into the flue collar. Reducing ell must be
included in elbow count.

4

90 elbows must be limited to sweep type elbows.

VENTING NOTES  One 90elbow is equivalent to 1.5 m of straight vent pipe.

Wall and roof termination (non−concentric) exhaust pipe must terminate with reducer to improve exhaust velocity away from intake piping.

Two 45 elbows are equal to one 90 elbow.
One 45 elbow is equivalent to 0.76 m of straight vent pipe.

070 − 50, 80, or 100 mm (2, 3 or 4 in.) − terminate with 40 mm (1−1/2 in.) pipe
090 − 50, 80, or 100 mm (2, 3 or 4 in.). − terminate with 50 mm (2 in.) pipe
110 − 80 or 100 mm (3 or 4 in.) − terminate with 50 mm (2 in.) pipe
135 − 80 or 100 mm (3 or 4 in.) − terminate with 50 mm (2 in.) pipe

3

G61MPVT G61MPVT G61MPVT

−60D−135

−36B−070

For altitudes of 611−1372 m

1

Maximum Equivalent Vent Length − m

−60C−090

2

G61MPVT

−60C−110

3

G61MPVT

−60D−135

TERMINATION KITS − EQUIVALENT VENT LENGTHS

Vent Pipe Equivalent Length − meters

Heat Size

Vent Pipe Di-

ameter

50 mm (2 in.) 80 mm (3 in.)

1

71M80 or 69M29 60L46 40 mm (1−1/2 in.) x 305 mm 50 mm (2 in.) x 305 mm

50 mm (2 in.) 3.6 not allowed 1.2 not allowed

−070

80 mm (3 in.)

100 mm (4 in.) 12.8 not allowed 4.3 not allowed

50 mm (2 in.) 0.9 0.9 not allowed 0.3

−090

80 mm (3 in.)

100 mm (4 in.) 3.7 3.7 not allowed 1.2

−

−

1

Outdoor exhaust accelerator included in 71M80 kit; for use with −070 models.

80 mm (3 in.) 1.8 1.8 not allowed 0.6

100 mm (4 in.) 3.7 3.7 not allowed 1.2

80 mm (3 in.) not allowed 4.6 not allowed 1.8

100 mm (4 in.) not allowed 7.6 not allowed 3.0

Concentric

Kits

7.3 not allowed 2.4 not allowed

1.8 1.8 not allowed 0.6

Outdoor Exhaust Accelerator

ameter X Leng

G61MPVT − 50hz / Page 6

INSTALLATION CONFIGURATIONS

DOWN−FLOW

BLOWER

HEAT

EXCHANGER

AIR FLOW

VENT

PIPING

CONDENSATE

DRAIN

VENT

PIPING

CONDENSATE

DRAIN

UP−FLOW

AIR FLOW

HEAT

EXCHANGER

BLOWER

NOTE − On up−flow and down−flow 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 (up−flow only) is
used. On horizontal installations the drain must be located at the bottom
and the vent piping at the top.

AIR

FLOW

HORIZONTAL − RIGHT

BLOWER

HORIZONTAL − LEFT

VENT

PIPING

HEAT

EXCHANGER

CONDENSATE

DRAIN

VENT

PIPING

HEAT

EXCHANGER

CONDENSATE

DRAIN

BLOWER

AIR

FLOW

FILTER AIR RESISTANCE

For 25 mm Cleanable Filter (Field Provided)

L/s Pa

0 0

95 2
190 7
285 10
375 15
470 22
565 30
660 37
755 47
850 57
945 67

1040 82
1130 94
1225 109

INSTALLATION CLEARANCES

Sides

Rear 0 mm

Top/Plenum 25 mm

Front 0 mm

Front (service/alcove) 610 mm

Floor

1

Allow proper clearances to accommodate condensate trap and vent pipe

installation.

2

Clearance for installation on combustible floor if optional down−flow combustible
floor base is installed between furnace and combustible floor. Not required in
add-on cooling applications if installed in accordance with local codes Do not install
the furnace directly on carpeting, tile, or other combustible materials other than
wood flooring.

1

0 mm

2

Combustible

G61MPVT − 50hz / Page 7

DIMENSIONS − MM − UP−FLOW POSITION SHOWN

1

NOTE − 60C and 60D size units that require air volumes over 850

L/s must have one of the following:

a. Single side return air with transition, to accommodate

508 x 635 x 25 mm air filter. Required to maintain proper air velocity.
b. Bottom return air.
c. Return air from both sides.
d. Bottom and

See Blower Performance Tables for additional information.

one side return air.

SUPPLY AIR

OPENING

TOP VIEW

A

B

AIR FLOW

14

1016

295 Right

248 Left

165

103

124 Right

57 Left

476

IEC

Receptacle

140

171

165

79

64

102

RETURN CUTOUT

724

494

COMBUSTION AIR INTAKE

(Either Side)

EXHAUST AIR OUTLET

(Either Side)

GAS PIPING INLET

(Either Side)

CONDENSATE

TRAP CONNECTION

(Either Side)

ELECTRICAL INLET

(Either Side)

584

1

OPTIONAL

(Either Side)

Up−Flow Only

356

49

14

19

C

1

Bottom Return

Air Opening

FRONT VIEW SIDE VIEW

Model No. A B C

G61MPVT−36B−070 446 416 406

G61MPVT−60C−090
G61MPVT−60C−110

G61MPVT−60D−135 622 594 584

G61MPVT − 50hz / Page 8

19

597

108

1

Bottom Return

Air Opening

533 505 495

DIMENSIONS − mm − FURNACE/COIL COMBINED DIMENSIONS

UP−FLOW POSITION

DOWN−FLOW POSITION

Furnace

Width

A

1016

UP−FLOW POSITION

Uncased

Model No

CX34−18/24B−6F
CX34−18/24C−6F

CX34−25B−6F C33−25B 495 1511 403 1419

CX34−30B−6F

B

CX34−30C−6F

CX34−31B−6F C33−31B 597 1613 514 1530

CX34−36B−6F C33−36B 622 1638 556 1572

CX34−36C−6F C33−36C 622 1638 540 1556

CX34−38B−6F C33−38B 622 1638 559 1575

CX34−42B−6F C33−42B 622 1638 556 1572

CX34−43B−6F C33−43B 724 1740 667 1683

CX34−43C−6F C33−43C 724 1740 654 1670

CX34−44/48B−6F C33−48B 622 1638 562 1578

CX34−44/48C−6F C33−48C 622 1638 546 1562

CX34−49C−6F C33−49C 749 1765 724 1740

CX34−50/60C−6F C33−50/60C 699 1715 629 1645

CX34−60D−6F C33−60D 648 1664 629 1645

CX34−62C−6F C33−62C 749 1765 778 1793

CX34−62D−6F C33−62D 749 1765 730 1746

C33−24B
C33−24C

C33−30B
C33−30C

C33−44C 622 1638 546 1562

Cased

A B A B

419 1435 352 1368

521 1537 451 1467

(CX34 − cased
only)

Coil

Width

HORIZONTAL

A

1016

Overall

Height

Coil

Height

B

1016

DOWN−FLOW POSITION

Model

Number

CR33-24B−F
CR33-30/36B−F 446 446 410 1426

CR33-30/36C−F 533 533 410 1426

CR33-48B−F

CR33-48C−F
CR33-50/60C−F 622 533 600 1362

CR33-60D−F 622 622 600 1362

HORIZONTAL POSITION

CH33−36B−2F
CH33−36C−2F

CH33−44/48B−2F
CH33−50/60C−2F

Coil Width

446 446 337 1353

533 446 508 1524

533 533 508 1524

Model

Number

CH33−42B−2F
CH33−48C−2F
CH33−60D−2F

CH33−62D−2F

Furnace

Width

Coil Height

A B

673 1689

800 1816

Overall

Height

G61MPVT − 50hz / Page 9

OPTIONAL ACCESSORY DIMENSIONS − MM

DOWN-FLOW COMBUSTIBLE FLOOR BASE

SUPPLY

OPENING

DOWN

FLOW

FURNACE

38

Front Of Furnace

AIR

38

503

692

21-13/16

B

38

(1-1/2)

A

38

559

C

DOWN-FLOW

COMBUSTIBLE

FLOOR BASE

FLOOR

OPENING

TOP VIEW

SIDE VIEW

Model No. A B C

G61MPVT−36B−070 497 421 476
G61MPVT−60C−090

G61MPVT−60C−110

586 510 565

G61MPVT−60D−135 675 598 654

G61MPVT − 50hz / Page 10

OPTIONAL ACCESSORY DIMENSIONS − MM

CONCENTRIC WALL

TERMINATION APPLICATIONS

OUTSIDE

EXHAUST

AIR

INTAKE

AIR

WALL

CLAMP

(Not Furnished)

See Installation Instructions for specific usage.

INTAKE

AIR

EXHAUST

AIR

INTAKE

AIR

GRADE

305

Minimum

Above

Grade

71M80/69M29 − 2 inch

60L46  3 inch

CONCENTRIC ROOF

TERMINATION APPLICATIONS

305

Minimum

Above Average

Snow

Accumulation

CLAMP

FLASHING

(Not Furnished)

SHEET METAL STRAP

(Clamp and sheet metal strap
must be field installed to support
the weight of the termination kit.)

ELBOW

(Field Supplied)

848 − 71M80/69M29
987 − 60L46

89 − 71M80/69M29
114 − 60L46

INTAKE AIR

TERMINATION

ASSEMBLY
(Furnished)

165

152

EXHAUST

AIR

Outdoor Exhaust Accelerator

included with 71M80

(Required with −070 models)

G61MPVT − 50hz / Page 11

BLOWER DATA − 0 through 200 Pa External Static Pressure Range

ADJUST"

Stc

ADJUST"

Stc

ADJUST"

Stc

ADJUST"

Stc

G61MPVT−36B−070 BLOWER PERFORMANCE (less filter)



Switch

Positions

"

Second Stage HEAT" Speed − L/s Second Stage COOL" Speed − L/s

1

1

2 3 4 1 2 3

+ 420 485 610 630 480 560 605 660

1

NORM 385 445 545 570 440 500 545 600

 N/A 395 480 495 390 450 475 520

ADJUST"

Switch

Positions

First Stage HEAT" Speed − L/s First Stage COOL" Speed − L/s

1

1

2 3 4 1 2 3

+ 385 440 545 570 345 385 410 440

1

NORM 360 410 495 515 320 355 375 405

 N/A 365 440 455 295 330 345 365

G61MPVT−60C−090 BLOWER PERFORMANCE (less filter)
Bottom Return Air, Return Air from Both Sides or Return Air from Bottom and One Side.



Switch

Positions

"

Second Stage HEAT" Speed − L/s Second Stage COOL" Speed − L/s

1

1

2 3 4 1 2 3

+ 710 790 885 985 755 805 910 1020

1

NORM 640 730 810 895 680 735 830 925

 565 645 725 800 600 650 750 830

ADJUST"

Switch

Positions

First Stage HEAT" Speed − L/s First Stage COOL" Speed − L/s

1

1

2 3 4 1 2 3

+ 640 735 815 900 520 560 640 730

1

NORM 575 665 750 820 470 510 570 635

 520 580 665 740 420 455 515 575

Speed Switch Positions

Speed Switch Positions

1

4

1

4

1

4

1

4

G61MPVT−60C−090 BLOWER PERFORMANCE (less filter)
Single Side Return Air − Air volumes in bold require field fabricated transition to accommodate 508 x 635 x 25 mm cleanable

air filter in order to maintain proper air velocity across the filter.



Switch

Positions

"

Second Stage HEAT" Speed − L/s Second Stage COOL" Speed − L/s

1

1

2 3 4 1 2 3

Speed Switch Positions

1

+ 685 775 860 970 745 800 895 1010

1

NORM 625 710 800 885 665 722 820 915

 550 625 710 785 590 640 735 820

ADJUST"

Switch

Positions

First Stage HEAT" Speed − L/s First Stage COOL" Speed − L/s

1

1

2 3 4 1 2 3

1

+ 620 710 800 885 510 545 620 705

1

NORM 560 645 730 810 465 500 560 630

 505 570 645 715 410 440 500 560

G61MPVT−60C−110 BLOWER PERFORMANCE (less filter)
Bottom Return Air, Return Air from Both Sides or Return Air from Bottom and One Side.



Switch

Positions

"

Second Stage HEAT" Speed − L/s Second Stage COOL" Speed − L/s

1

1

2 3 4 1 2 3

Speed Switch Positions

1

+ 710 805 905 1005 765 825 940 1045

1

NORM 645 740 830 915 690 745 845 940

 570 650 740 820 610 665 755 845

ADJUST"

Switch

Positions

First Stage HEAT" Speed − L/s First Stage COOL" Speed − L/s

1

1

2 3 4 1 2 3

1

+ 645 740 830 920 445 480 545 615

1

NORM 580 670 755 840 395 430 495 555

 520 590 670 745 350 375 434 495

1

Factory default jumper setting.
N/A − First and second stage HEAT positions shown cannot be used on this model.
NOTES − The effect of static pressure is included in air volumes shown.

First stage HEAT is approximately 91% of the same second stage
First stage COOL (two−stage air conditioning units only) is approximately 70% of the same second stage COOL speed position.
Continuous Fan Only speed is approximately 38% of the same second stage COOL speed position − minimum 235 L/s.

HEAT speed position.

4

4

4

4

G61MPVT − 50hz / Page 12

BLOWER DATA − 0 through 200 Pa External Static Pressure Range

ADJUST"

Stc

ADJUST"

Stc

G61MPVT−60C−110 BLOWER PERFORMANCE (less filter)
Single Side Return Air − Air volumes in bold require field fabricated transition to accommodate 508 x 635 x 25 mm cleanable

air filter in order to maintain proper air velocity across the filter.



Switch

Positions

"

Second Stage HEAT" Speed − L/s Second Stage COOL" Speed − L/s

1

1

2 3 4 1 2 3

+ 700 790 880 980 750 800 900 1010

1

NORM 635 720 815 895 675 725 820 910

 555 630 710 790 605 655 740 830

ADJUST"

Switch

Positions

First Stage HEAT" Speed − L/s First Stage COOL" Speed − L/s

1

1

2 3 4 1 2 3

+ 625 710 800 880 440 485 545 605

1

NORM 565 645 730 810 395 430 495 555

 510 570 645 720 355 375 435 495

G61MPVT−60D−135 BLOWER PERFORMANCE (less filter)
Bottom Return Air, Return Air from Both Sides or Return Air from Bottom and One Side.



Switch

Positions

"

Second Stage HEAT" Speed − L/s Second Stage COOL" Speed − L/s

1

1

2 3 4 1 2 3

+ 710 805 895 995 760 815 915 1035

1

NORM 645 730 820 905 685 745 840 935

 580 650 730 810 615 660 755 840

ADJUST"

Switch

Positions

First Stage HEAT" Speed − L/s First Stage COOL" Speed − L/s

1

1

2 3 4 1 2 3

+ 655 740 830 910 535 570 645 725

1

NORM 590 670 750 835 485 520 580 655

 535 595 675 750 430 465 525 580

1

Factory default jumper setting.
N/A − First and second stage HEAT positions shown cannot be used on this model.
NOTES − The effect of static pressure is included in air volumes shown.

First stage HEAT is approximately 91% of the same second stage
First stage COOL (two−stage air conditioning units only) is approximately 70% of the same second stage COOL speed position.
Continuous Fan Only speed is approximately 38% of the same second stage COOL speed position − minimum 235 L/s.

HEAT speed position.

Speed Switch Positions

1

1

Speed Switch Positions

1

1

4

4

4

4

G61MPVT − 50hz / Page 13

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NOTE − Due to Lennox’ ongoing committment 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.

©2006 Lennox Heating and Air Conditioning − Division of Heatcraft Australia Pty, LTD