Manejadora Lennox CBX

AIR HANDLERS
CBX26UH
MERIT® Series
R-410A - Upflow / Horizontal
E N G I N E E R I N G D ATA Bulletin No. 210494
January 2010
Supersedes January 2009
Nominal Capacity - 1.5 to 5 Tons

Optional Electric Heat - 5 to 20 kW
MODEL NUMBER IDENTIFICATION
CB X 26 UH - 030 - 230 - 01
Unit Type Minor Revision Number

CB = Air Handler
Refrigerant Type Voltage

X = R-410A 230 = 208/230V-1 phase-60hz
Series
Configuration Nominal Cooling Capacity

UH = Upflow/Horizontal 018 = 1.5 tons
024 = 2 tons
030 = 2.5 tons
036 = 3 tons
037 = 3 tons
042 = 3.5 tons
048 = 4 tons
060 = 5 tons
FEATURES
Contents
Accessory Dimensions................................................11 I
Blower Data...................................................................6
Dimensions..................................................................10
F G
Electric Heat Data . .......................................................7
Features........................................................................2
Installation Clearances .................................................4
Model Number Identification..........................................1
Optional Accessories.....................................................5 E
Specifications ...............................................................5
WARRANTY A
All covered components - limited five years in
residential applications, one year in non-residential
applications.
D
Refer to Lennox Limited Warranty Certificate included
with each unit for additional details.
B C
APPLICATIONS
1.5 to 5 ton nominal sizes.
Upflow or horizontal applications. Optional downflow kit
available for field conversion.
CBX26UH models applicable to R-410A expansion
valve systems in cooling applications and check and H
expansion valve systems in heat pump applications.
Wide-range check and expansion valve is factory
installed.
C Check and Expansion Valve Furnished
CBX26UH models have non-chlorine, ozone friendly,
See bulletins in section Air Conditioners for cooling R-410A valve.
capacities.
Wide range valve.
See bulletins in section Heat Pump Outdoor Units for
Chatleff style fitting.
cooling and heating capacities.
Factory installed on all models internal to cabinet.
Optional field installed electric heaters available in
several sizes for additive heating capacity. D Copper Tube/Enhanced Fin Evaporator Coil
Assembled in “A” configuration.
APPROVALS
Provides extra large surface and contact area, excellent
Tested with matching air conditioners and heat pump
heat transfer and low air resistance for maximum
units in the Lennox Research Laboratory environmental
efficiency.
test room in accordance with AHRI Standard 210/240.
Precise circuiting for uniform refrigerant distribution.
Optional electric heaters are rated in accordance with
US Department of Energy (DOE) test procedures and Precisely spaced ripple-edged aluminum fins fitted to
Federal Trade Commission (FTC) labeling regulations. durable seamless copper tubes.
Air handlers are UL Listed to US and Canadian Fins are strengthened to resist bending and are
safety standards and components within are bonded equipped with collars that grip tubing for maximum
for grounding to meet safety standards for servicing contact area.
required by CEC and NEC. Lanced fins provide maximum exposure of fin surface to
ISO 9001 Registered Manufacturing Quality System. air stream.
Long life copper tubing is easy to service.
REFRIGERANT SYSTEM
Rifled tubing provides superior heat transfer.
B Refrigerant Line Connections
Suction (vapor) and liquid lines have sweat connections Flared shoulder tubing joints and silver soldering
that extended outside of the cabinet for ease of provide tight, leakproof joints.
connection. Coil thoroughly factory tested under high pressure to
See dimension drawing for locations. insure leakproof construction.
CBX26UH - 1.5 to 5 ton Air Handlers / Page 2

FEATURES
FILTER (NOT FURNISHED) H Anti-Microbial Dual Position Drain Pans
Filter is not furnished and must be field supplied. Anti-Microbial additive resists
Filter rack furnished in cabinet for easy filter installation. growth of mold and mildew on
drain pan which improves indoor
See Specifications tables for filter sizes. air quality and reduces drain line blockage.
E BLOWER Drain pans designed for upflow or horizontal
Resiliently mounted multi-speed motor. applications.
Choice of blower speeds. See blower performance Deep, corrosion resistant high temperature engineered
tables. polymer drain pans have dual pipe drains.
Speed changes easily accomplished by a simple wiring See dimension drawing.
change.
OPTIONS
Blower is easily removed from unit for servicing. Downflow Additive Base
Time Delay Blower Relay Additive base required for models with electric heat
Relay allows 30 second blower “on” delay before installed in downflow position on combustible floors.
continuous fan or cooling operation and 30 second Downflow Conversion Kit
blower “off” delay after continuous fan or cooling
operation. Required for field conversion to downflow position. Kit
consists of drip shields and 2 brackets for repositioning
CONTROLS coil and drain pan.
F Transformer and Blower Cooling Relay Duct Adaptor Kit
24 volt transformer and blower cooling relay furnished Kit allows direct connection of the ductwork to the return
as standard. air opening of the air handler, not required if an external
Factory installed in the unit control box. filter is used or if unit is installed on a platform in upflow
applications. See dimension drawing.
OPTIONS
Horizontal Support Frame Kit
Thermostat
Provides support of unit in horizontal applications.
See Thermostat bulletins in Controls section and
Lennox Price Book for a complete list of thermostats. Consists of (2) 1 x 1-1/2 x 32-5/8 in. and (2) 1 x 3 x
53-7/8 in. painted heavy gauge cold rolled steel support
G CABINET channels with assembly and suspending holes.
Constructed of heavy gauge galvanized steel. Bolts and nuts furnished for field assembly.
Powder paint finish. Suspending rods must be field provided.
Completely insulated with foil faced fiberglass Side Return Unit Stand (Upflow Only)
insulation.
Raises unit 16 in. above floor for side return air duct
Removable panels provide complete service access. connection.
Filter access door for easy filter replacement. Eliminates need for wooden platform construction.
Electrical inlets provided in sides and top of cabinet. All aluminum construction.
See dimension drawing for locations.
Two adjustable frames fit all sizes.
Knock-outs in cabinet for drain connections for upflow
See Dimension Drawing.
(left and right) and horizontal applications. See
dimension drawing. Wall Hanging Bracket Kit (Upflow Only)
Upflow/Horizontal Capability (Optional Downflow) Allows unit to be hung on wall at any height.
Shipped for upflow and horizontal left-hand discharge. Consists of heavy gauge steel support brackets (one for
air handler unit, one for wall mount).
May be field converted to horizontal right-hand air
discharge by repositioning horizontal drain pan. Screws furnished for fastening one bracket to unit.
Optional downflow kit available for field conversion. Bolts for fastening one bracket to wall are field provided.

FEATURES
ELECTRICAL Circuit Breaker Models
OPTIONS ECB26-5CB, ECB26-7CB, ECB26-10CB, ECB26-15CB,
ECB26-20CB heaters are equipped with circuit breakers
I Electric Heat for overload and short circuit protection.
Field install internal to
Factory wired and mounted on electric heat unit.
unit cabinet.
Current sensitive and temperature actuated.
Available in several kW
sizes. Manual reset.
See Electric Heat tables. Circuit breakers qualify as disconnect means at unit
in many areas, eliminate the need for field provided
Helix wound nichrome
disconnect.
heating elements
exposed directly in Consult local electrical code in your area.
air stream resulting in Circuit Breaker Cover Kit
instant heat transfer, low Flexible plastic cover protects circuit breaker.
element temperatures and long service life. Recommended in areas with high humidity to prevent
Each element equipped with accurately located limit nuisance tripping.
control with fixed temperature off setting and automatic Single-point Power Source Control Box
reset.
Control Box may be used with optional electric heat
Thermal sequencer relay brings elements on and off when single power supply is connected to multi-circuit
line, in sequence and equal increments, with time delay electric heat.
between each.
Field installs external to the unit cabinet on either side
Initiates and terminates blower operation. or top.
Heating control relay(s) furnished as standard. Constructed of heavy gauge steel, baked enamel finish,
Factory assembled with controls installed and wired. prepunched mounting holes, electrical inlet knockouts,
Electric heat control wiring plugs into mating connector and terminal strip.
on air handler unit. Removeable cover provides easy access.
Dimensions (H x W x D) - 7 x 7 x 4 in.
INSTALLATION CLEARANCES WITH ELECTRIC HEAT

Cabinet 0 inch (0 mm)
To Plenum 1 inch (25 mm)
To Outlet Duct within 3 feet (914 mm) 1 inch (25 mm)
Floor See Note #1
Service / Maintenance See Note #2
1 Units installed on combustible floors in the downflow position with electric heat require optional downflow additive base.
2 Front service access - 24 inches (610 mm) minimum.
NOTE - If cabinet depth is more than 24 inches (610 mm), allow a minimum of the cabinet depth plus 2 inches (51 mm).
REPLACEMENT CIRCUIT BREAKERS

Voltage Description Catalog No.
208/240V - 1 Phase 25 amp, 2 pole 41K13
30 amp, 2 pole 17K70

SPECIFICATIONS
General Model Number CBX26UH-018 CBX26UH-024 CBX26UH-030 CBX26UH-036
Data Nominal tonnage 1.5 2 2.5 3
Connections Suction/Vapor line (o.d.) - in. sweat 3/4 3/4 7/8 7/8
Liquid line (o.d.) - in. sweat 3/8 3/8 3/8 3/8
Condensate - in. fpt (2) 3/4 (2) 3/4 (2) 3/4 (2) 3/4
Indoor Net face area - ft.2 4 4 4.88 4.88
Coil Tube outside diameter - in. 3/8 3/8 3/8 3/8
Number of rows 3 3 3 3
Fins per inch 15 14 14 14
Blower Wheel nominal diameter x width - in. 10 x 6 10 x 6 11 x 8 11 x 8
Blower motor output - hp 1/4 1/4 1/4 1/3
1
Filters Size of filter - in. 16 x 20 x 1 16 x 20 x 1 18 x 20 x 1 18 x 20 x 1
ELECTRICAL DATA
Voltage - 1 phase (60 hz) 208/240V 208/240V 208/240V 208/240V
2
Maximum overcurrent protection (unit only) 15 15 15 15
3
Minimum circuit ampacity (unit only) 1.5 1.5 1.6 2.0
Shipping Data -1 package - lbs. 129 131 148 148
SPECIFICATIONS
General Model Number CBX26UH-037 CBX26UH-042 CBX26UH-048 CBX26UH-060
Data Nominal tonnage 3 3.5 4 5
Connections Suction/Vapor line (o.d.) - in. sweat 7/8 7/8 7/8 7/8
Liquid line (o.d.) - in. sweat 3/8 3/8 3/8 3/8
Condensate - in. fpt (2) 3/4 (2) 3/4 (2) 3/4 (2) 3/4
Indoor Net face area - ft.2 5.84 5.84 7.58 8.76
Coil Tube outside diameter - in. 3/8 3/8 3/8 3/8
Number of rows 3 3 3 3
Fins per inch 14 14 14 14
Blower Wheel nominal diameter x width - in. 11 x 8 11 x 8 11-1/2 x 9 12 x 9
Blower motor output - hp 1/3 1/2 1/2 1/2
1
Filters Size of filter - in. 18 x 25 x 1 18 x 25 x 1 18 x 25 x 1 18 x 25 x 1
ELECTRICAL DATA
Voltage - 1 phase (60 hz) 208/240V 208/240V 208/240V 208/240V
2
Maximum overcurrent protection (unit only) 15 15 15 15
3
Minimum circuit ampacity (unit only) 1.8 2.0 2.6 4.1
Shipping Data -1 package - lbs. 172 172 177 190
1
Filter is not furnished and must be field supplied.
2
HACR type circuit breaker or fuse.
3
Refer to National or Canadian Electrical Code manual to determine wire, fuse and disconnect size requirements. Use wires suitable for at least 167°F.
OPTIONAL ACCESSORIES - MUST BE ORDERED EXTRA

Model -018 -030 -037 -060
-024 -036 -042
-048
Circuit Breaker Cover Kit 93M85 93M85 93M85 93M85
Downflow Additive Base 12W95 12W96 12W97 12W97
Downflow Conversion Kit 12W61 12W61 12W61 12W61
Duct Adaptor Kit X8103 X8104 X8104 X8104
Horizontal Support Frame Kit 56J18 56J18 56J18 56J18
Side Return Unit Stand (Upflow Only) 45K32 45K32 45K32 45K32
Single Point Power Source Control Box (for Electric Heat) 21H39 21H39 21H39 21H39
Wall Hanging Bracket Kit (Upflow Only) 45K30 45K30 45K30 45K30

BLOWER DATA
CBX26UH-018 BLOWER PERFORMANCE CBX26UH-037 BLOWER PERFORMANCE
External Static Air Volume at External Static Air Volume at
Pressure Specific Blower Taps (cfm) Pressure Specific Blower Taps (cfm)
in. w.g. in. w.g. High Medium Low
High Medium Low
0.10 1035 995 720 0.10 1625 1460 1220
0.20 960 925 700 0.20 1610 1450 1215
0.30 875 840 655 0.30 1565 1440 1200
0.40 780 705 610 0.40 1540 1405 1165
0.50 665 625 515 0.50 1440 1320 1095
NOTE - All air data measured external to unit with dry coil and 1 inch non- 0.60 1385 1205 1022
pleated air filter in place. NOTE - All air data measured external to unit with dry coil and 1 inch non-
Electric heaters have no appreciable air resistance. pleated air filter in place.
Electric heaters have no appreciable air resistance.
CBX26UH-042 BLOWER PERFORMANCE

External Static Air Volume at
CBX26UH-024 BLOWER PERFORMANCE Pressure Specific Blower Taps (cfm)
External Static Air Volume at in. w.g. High Medium Low
Pressure Specific Blower Taps (cfm) 0.10 1803 1707 1603
in. w.g. High Medium Low 0.20 1749 1635 1542
0.10 1035 995 750 0.30 1665 1561 1474
0.20 960 925 700 0.35 1614 1530 1449
0.30 875 840 655 0.40 1545 1482 1407
0.40 780 705 610 0.45 1474 1416 1373
0.50 665 625 515 0.50 1416 1373 1301
pleated air filter in place.
NOTE - All air data measured external to unit with dry coil and 1 inch non-

in. w.g. High Medium Low
0.10 1290 1060 930 0.30 1918 1826 1641
0.20 1270 1045 915 0.35 1839 1771 1596
0.30 1215 1015 890 0.40 1771 1700 1565
0.40 1155 950 840 0.45 1700 1657 1517
0.50 1045 840 735 0.50 1642 1581 1451
pleated air filter in place. NOTE - All air data measured external to unit with dry coil and 1 inch non-
Electric heaters have no appreciable air resistance. pleated air filter in place.

External Static Air Volume at in. w.g. High Medium Low
0.10 1495 1355 1135 0.30 2092 1971 1688
0.20 1470 1345 1120 0.35 2020 1920 1673
0.30 1415 1315 1110 0.40 1958 1855 1644
0.40 1335 1260 1080 0.45 1881 1801 1567
0.50 1250 1090 995 0.50 1842 1717 1503
NOTE - All air data measured external to unit with dry coil and 1 inch non-

ELECTRIC HEAT DATA
SINGLE PHASE ELECTRIC HEAT CBX26UH-018 / CBX26UH-024
Description Input Blower 2
Minimum 3
Maximum
Motor Circuit Overcurrent
Full Load Ampacity Protection
Amps
Volt kW 1
Btuh Circuit 1 Circuit 2 Circuit 1 Circuit 2
5 kW ECB26-5 (99M64) Terminal Block 208 3.8 12,800 1.5 24.7 --- 4
25 ---
ECB26-5CB (99M65) Circuit Breaker
220 4.2 14,300 1.4 27.8 --- 30 ---
230 4.6 15,700 1.4 27.8 --- 30 ---
240 5.0 17,100 1.4 27.8 --- 30 ---
7.5 kW ECB26-7 (99M67) Terminal Block 208 5.6 19,200 1.5 35.5 --- 4
40 ---
220 6.3 21500 1.4 40.8 --- 45 ---
230 6.9 23500 1.4 40.8 --- 45 ---
240 7.5 25,600 1.4 40.8 --- 45 ---
50 ---
220 8.4 28,700 1.4 53.8 --- 60 ---
230 9.2 31,400 1.4 53.8 --- 60 ---
240 10.0 34,100 1.4 53.8 --- 60 ---
SINGLE PHASE ELECTRIC HEAT CBX26UH-030
Minimum 3
Maximum
Amps
Volt kW 1
25 ---
220 4.2 14,300 1.5 27.9 --- 30 ---
230 4.6 15,700 1.5 27.9 --- 30 ---
240 5.0 17,100 1.5 27.9 --- 30 ---
40 ---
220 6.3 21500 1.5 40.9 --- 45 ---
230 6.9 23500 1.5 40.9 --- 45 ---
240 7.5 25,600 1.5 40.9 --- 45 ---
50 ---
220 8.4 28,700 1.5 54.0 --- 60 ---
230 9.2 31,400 1.5 54.0 --- 60 ---
240 10.0 34,100 1.5 54.0 --- 60 ---
15 kW ECB26-15CB (99M70) Circuit Breaker 208 11.3 38,400 1.6 47.1 22.8 4
50 4
25
220 12.6 43,000 1.5 54.0 26.0 60 30
230 13.5 47,000 1.5 54.0 26.0 60 30
240 15.0 51,200 1.5 54.0 26.0 60 30
NOTE - Circuit 1 Minimum Circuit Ampacity includes the Blower Motor Full Load Amps.
1
Electric heater capacity only - does not include additional blower motor heat capacity.
2
3
HACR type breaker or fuse.
4
Bold indicates that the circuit breaker on “CB” circuit breaker models must be replaced with size shown. See Table on page 4.

ELECTRIC HEAT DATA
SINGLE PHASE ELECTRIC HEAT CBX26UH-036 / CBX26UH-037
Minimum 3
Maximum
Amps
Volt kW 1
5 kW ECB26-5 (99M64) Terminal Block 208 3.8 12,800 2.1 25.5 --- 30 ---
220 4.2 14,300 2.0 28.6 --- 30 ---
230 4.6 15,700 2.0 28.6 --- 30 ---
240 5.0 17,100 2.0 28.6 --- 30 ---
40 ---
220 6.3 21500 2.0 41.6 --- 45 ---
230 6.9 23500 2.0 41.6 --- 45 ---
240 7.5 25,600 2.0 41.6 --- 45 ---
50 ---
220 8.4 28,700 2.0 54.6 --- 60 ---
230 9.2 31,400 2.0 54.6 --- 60 ---
240 10.0 34,100 2.0 54.6 --- 60 ---
50 4
25
220 12.6 43,000 2.0 54.6 26.0 60 30
230 13.5 47,000 2.0 54.6 26.0 60 30
240 15.0 51,200 2.0 54.6 26.0 60 30
Minimum 3
Maximum
Amps
Volt kW 1
220 4.2 14,300 2.0 28.6 --- 30 ---
230 4.6 15,700 .2.0 28.6 --- 30 ---
240 5.0 17,100 2.0 28.6 --- 30 ---
40 ---
220 6.3 21500 2.0 41.6 --- 45 ---
230 6.9 23500 2.0 41.6 --- 45 ---
240 7.5 25,600 2.0 41.6 --- 45 ---
50 ---
220 8.4 28,700 2.0 54.6 --- 60 ---
230 9.2 31,400 2.0 54.6 --- 60 ---
240 10.0 34,100 2.0 54.6 --- 60 ---
50 4
25
220 12.6 43,000 2.0 54.6 26.0 60 30
230 13.5 47,000 2.0 54.6 26.0 60 30
240 15.0 51,200 2.0 54.6 26.0 60 30
1
2
3
4

ELECTRIC HEAT DATA
Minimum 3
Maximum
Volt kW 1
Btuh Amps Circuit 1 Circuit 2 Circuit 1 Circuit 2
ECB26-5CB (99M65) Circuit Breaker 220 4.2 14,300 2.5 29.2 --- 30 ---
230 4.6 15,700 2.5 29.2 --- 30 ---
240 5.0 17,100 2.5 29.2 --- 30 ---
40 ---
ECB26-7CB (99M66) Circuit Breaker 220 6.3 21500 2.5 42.2 --- 45 ---
230 6.9 23500 2.5 42.2 --- 45 ---
240 7.5 25,600 2.5 42.2 --- 45 ---
50 ---
230 9.2 31,400 2.5 55.2 --- 60 ---
240 10.0 34,100 2.5 55.2 --- 60 ---
50 4
25
220 12.6 43,000 2.5 55.2 26.0 60 30
230 13.5 47,000 2.5 55.2 26.0 60 30
240 15.0 51,200 2.5 55.2 26.0 60 30
50 4
50
220 16.8 57,300 2.5 55.2 52.1 60 60
230 18.4 62,700 2.5 55.2 52.1 60 60
240 20.0 68,200 2.5 55.2 52.1 60 60
Minimum 3
Maximum
Volt kW 1
Btuh Amps Circuit 1 Circuit 2 Circuit 1 Circuit 2
(240V)
230 4.6 15,700 3.9 30.9 --- 35 ---
240 5.0 17,100 3.9 30.9 --- 35 ---
40 ---
ECB26-7CB (99M66) Circuit Breaker 220 6.3 21500 3.9 43.9 --- 45 ---
230 6.9 23500 3.9 43.9 --- 45 ---
240 7.5 25,600 3.9 43.9 --- 45 ---
230 9.2 31,400 3.9 57.0 --- 60 ---
240 10.0 34,100 3.9 57.0 --- 60 ---
15 kW ECB26-15CB (99M70) Circuit Breaker 208 11.3 38,400 4.1 50.2 22.8 60 4
25
220 12.6 43,000 3.9 57.0 26.0 60 30
230 13.5 47,000 3.9 57.0 26.0 60 30
240 15.0 51,200 3.9 57.0 26.0 60 30
20 kW ECB26-20CB (99M71) Circuit Breaker 208 15.0 51,200 4.1 50.2 45.1 60 4
50
220 16.8 57,300 3.9 57.0 52.1 60 60
230 18.4 62,700 3.9 57.0 52.1 60 60
240 20.0 68,200 3.9 57.0 52.1 60 60
1
2
3
4

DIMENSIONS - INCHES (MM) - UPFLOW POSITION SHOWN
B 1 (25) C
LINE VOLTAGE
Right, Left and Top
LOW VOLTAGE
Right Side Only
AIR FLOW
A CONDENSATE DRAIN
PIPING PLATE (4)
(2−1/4 x 3−3/4)
SUCTION
LINE
FILTER ACCESS
F LIQUID OPTIONAL DUCT

LINE ADAPTOR KIT
(Kit allows direct connection of the
ductwork to the return air opening
of the air handler, not required if
E an external filter is used
or if unit is installed on a
D platform in up−flow applications.)
3/4
(19)
G H
2-1/2 (Opening) 2-1/2 1-1/2 (Opening) 1-1/2
(64) (64) (38) (38)
FRONT VIEW SIDE VIEW
Dimension -018, -024 -030, -036 -037, -042, -048 -060

in. mm in. mm in. mm in. mm
A 46-3/4 1187 51 1295 54 1372 60 1524
B 18-1/2 470 21-1/4 540 21-1/4 540 21-1/4 540
C 22 559 22 559 26 660 26 660
D 11 279 12-1/2 318 12 305 11-3/4 298
E 16 406 18-1/2 470 16-3/4 425 17 432
F 5-1/2 140 6 152 4 102 4 102
G 13-1/2 343 16 406 16 406 16 406
H 19 483 19 483 23 584 23 584
Supply Air Depth 17 432 17 432 21 533 21 533
Opening Width 16-1/2 419 19-1/4 489 19-1/4 489 19-1/4 489

ACCESSORY DIMENSIONS - INCHES (MM)
DOWNFLOW ADDITIVE BASE
1-1/2
(38)
AIR
HANDLER
1-1/2
(38)
D
SUPPLY
AIR A
OPENING Opening
B
1-1/2
(38)
TOP VIEW
C
1/4 D
(6) Opening
1-1/2 (38)
SIDE VIEW DOWNFLOW

ADDITIVE
BASE
Usage -018-024 -030-036 -037-042

(12W95) (12W96) -048-060
(12W97)
in. mm in. mm in. mm
A (floor) 19 483 21-3/4 552 21-3/4 552
B 16-7/8 429 19-5/8 498 19-5/8 498
C 23-1/8 587 23-1/8 587 27-7/8 708
D (floor) 19-1/2 495 19-1/2 495 26-3/4 679
SIDE RETURN UNIT STAND

(Upflow Only)
16
(406)
6
(152)
ADJUSTABLE
21-1/4 20 (508) to
(540) 25 (635)
ALL UNITS

REVISIONS
Sections Description of Change
Blower Data, Specification Revised blower data for -042, -048, -060 models.
Visit us at www.lennox.com
For the latest technical information, www.lennoxdavenet.com
Contact us at 1-800-4-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. ©2010 Lennox Industries, Inc.

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AIR HANDLERS

Nominal Capacity - 1.5 to 5 Tons

MODEL NUMBER IDENTIFICATION

Unit Type Minor Revision Number

Refrigerant Type Voltage

Configuration Nominal Cooling Capacity

CBX26UH - 1.5 to 5 ton Air Handlers / Page 2

CBX26UH - 1.5 to 5 ton Air Handlers / Page 3

INSTALLATION CLEARANCES WITH ELECTRIC HEAT

REPLACEMENT CIRCUIT BREAKERS

CBX26UH - 1.5 to 5 ton Air Handlers / Page 4

OPTIONAL ACCESSORIES - MUST BE ORDERED EXTRA

CBX26UH - 1.5 to 5 ton Air Handlers / Page 5

CBX26UH-042 BLOWER PERFORMANCE

CBX26UH-048 BLOWER PERFORMANCE

CBX26UH-060 BLOWER PERFORMANCE

CBX26UH - 1.5 to 5 ton Air Handlers / Page 6

CBX26UH - 1.5 to 5 ton Air Handlers / Page 7

CBX26UH - 1.5 to 5 ton Air Handlers / Page 8

CBX26UH - 1.5 to 5 ton Air Handlers / Page 9

F LIQUID OPTIONAL DUCT

Dimension -018, -024 -030, -036 -037, -042, -048 -060

CBX26UH - 1.5 to 5 ton Air Handlers / Page 10

SIDE VIEW DOWNFLOW

Usage -018-024 -030-036 -037-042

SIDE RETURN UNIT STAND

CBX26UH - 1.5 to 5 ton Air Handlers / Page 11

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