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COILS – BLOWER COIL UNITS
CB19 AND CBH19 SERIES
CB19/
UP-FLOW, DOWN-FLOW AND HORIZONTAL
ENGINEERING DATA
CBH19
BLOWER COIL UNITS
*12,600 to 65,500 Btuh (3.7 to 19.2 kW) Cooling Capacity
Bulletin #210056
11,500 to 60,000 Btuh (3.4 to 17.6 kW) Heat Pump Heating Capacity
January 1995
6,400 to 102,400 Btuh (1.9 to 30.0 kW) Optional Electric Heat
Supersedes
April 1994
*ARI Standard 210/240 Ratings With Matching Outdoor Unit
Applications — The CB19 and CBH19 blower coil units are de-
signed for multi-position installation in a basement, utility
room, alcove, closet, crawlspace or attic. Units are applicable
to expansion valve systems in cooling applications and
check and expansion valve systems in heat pump applica-
tions. Units have factory installed check and expansion valve.
Several models are available in varying sizes with a wide
range of cooling and heating capacities. See Condensing Unit
bulletins in section Cooling Units — Condensing Units for
cooling capacities. See Heat Pump Outdoor Unit Bulletins in
section Heat Pumps — Matched Remote Systems for cooling
and heating capacities. Optional field installed electric heaters
are available in several sizes for additive heating capacity.
CB19 models are applicable to up-flow or down-flow dis-
charge air applications. Units are shipped for up-flow ap-
plications and may easily be field converted to the down-
flow position by turning the unit upside down and
repositioning the coil, drip shields and cabinet access panel.
Filters are not furnished and must be provided by the install-
er. An optional side return air adapter with filter(s) is avail-
CB19 MODEL — UP-FLO
CB19 MODEL — DOWN-FLO
able for up-flow applications only. An optional additive
base is available for models with electric heat installed in
the down-flow position on combustible floors.
CBH19 models are designed for horizontal discharge air ap-
plications. Units are furnished with left hand air discharge as
standard and may be field changed to right hand discharge by
turning the unit over (end for end) and repositioning the coil.
CBH19-51 and CBH19-65 models are furnished in a two piece
cabinet with blower and optional electric heaters in one sec-
tion and the indoor coil in the other. Hardware is furnished for
field connection of cabinets. Filters are not furnished and
must be provided by the installer.
CBH19 MODEL — HORIZONTAL
Typical Applications
Horizontal Installation
Up-Flow Installation
Down-Flow Installation
with optional electronic air cleaner
The maple leaf symbol in this bulletin denotes Canadian only usage where applicable
1995 Lennox Industries Inc.
NOTE — Due to Lennox' ongoing committment to quality, Specifications, Ratings and Dimensions subject to change without notice and without incurring liability.
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Table of Contents
Related Manuals for Lennox CB19-41
Summarization of Contents
CB19 AND CBH19 SERIES UP-FLOW, DOWN-FLOW AND HORIZONTAL BLOWER COIL UNITS
Applications
Describes the general purpose and installation versatility of the CB19 and CBH19 blower coil units.
CB19 Models
Details applicability to up-flow or down-flow discharge air applications and field conversion.
CBH19 Models
Explains horizontal discharge air applications and field configuration for CBH19 models.
FEATURES
Completely Tested
Units are tested in a lab environment according to ARI standards and safety regulations.
Cabinet
Describes the construction of the heavy gauge galvanized steel cabinet with fiberglass insulation.
Drain Pan
Details the deep, corrosion-resistant drain pan with dual pipe drains for easy connection.
Direct Drive Blower
Features a Lennox-designed, statically and dynamically balanced direct drive blower with a multi-speed motor.
Refrigerant Line Connections
Explains sweat connections for suction and liquid lines extending outside the cabinet for ease of use.
Check and Expansion Valve Furnished
States that check and expansion valves are factory installed on all models for system compatibility.
Copper Tube/Enhanced Fin Evaporator Coil
Describes the V-configuration twin coils providing high surface area, heat transfer, and low air resistance.
Transformer and Blower Cooling Relay
Notes the standard inclusion of a 24-volt transformer and blower cooling relay with a terminal strip.
OPTIONAL ACCESSORIES
Electric Heat (Optional)
Additive electric heaters install internally, featuring helix wound elements, limit controls, and thermal cutoff fuses.
Circuit Breakers
Electric heaters are equipped with circuit breakers for overload and short circuit protection, acting as a disconnect means.
Single-Point Power Source Control Box (Optional)
Provides a single power service connection for units with optional electric heat, simplifying wiring.
CCB1 EfficiencyPlus Humidity Control (Optional)
Electronic control that adjusts indoor blower and compressor speed to manage desired indoor humidity levels.
EBR1 Blower Relay Kit (Optional)
A kit that allows the CCB1 Humidity Control to be used with CB19/CBH19 blower coil units.
Down-Flow Additive Base (Optional)
An optional base required for models with electric heat installed in the down-flow position on combustible floors.
Air Filters (Not Furnished)
Filters are not included and must be ordered separately; filter rails are provided in the unit.
CB19 Up-Flow Side Return Air Filter Adaptor (Optional)
An adaptor for up-flow cabinets that allows side return air and filter installation.
SPECIFICATIONS - CB19 UP-FLOW/DOWN-FLOW
Net Face Area
Specifies the net face area in square feet (m²) for each CB19 model.
Tube Outside Diameter
Details the tube outside diameter in inches (mm) for the evaporator coil.
Number of Rows
Indicates the number of rows in the evaporator coil for each model.
Fins Per Inch
Specifies the fin density in fins per inch (m) for the evaporator coil.
Suction Line Connection
Lists the connection size in inches (mm) sweat for the suction line.
Liquid Line Connection
Lists the connection size in inches (mm) sweat for the liquid line.
Condensate Drain Connection
Details the connection size in inches (mm) for the condensate drain.
Nominal Cooling Capacity
Provides the nominal cooling capacity in tons (kW) for each unit.
Refrigerant
Specifies the type of refrigerant used, HCFC-22.
Blower Wheel Diameter x Width
Lists the dimensions of the blower wheel in inches (mm).
Blower Motor Output
Indicates the horsepower (W) of the blower motor for each model.
Number and Size of Filters
Specifies the number and dimensions of filters required for the unit.
Electrical Characteristics
Details the voltage and frequency (e.g., 208/230 volts, 60 hz, 1 ph).
Shipping Weight
Provides the shipping weight in pounds (kg) for the unit.
Optional Electric Heat Capacity
Details the Btuh (kW) output and AFUE for various electric heater options.
SPECIFICATIONS - CBH19 HORIZONTAL
Net Face Area
Specifies the net face area in square feet (m²) for each CBH19 model.
Tube Outside Diameter
Details the tube outside diameter in inches (mm) for the evaporator coil.
Number of Rows
Indicates the number of rows in the evaporator coil for each model.
Fins Per Inch
Specifies the fin density in fins per inch (m) for the evaporator coil.
Suction Line Connection
Lists the connection size in inches (mm) sweat for the suction line.
Liquid Line Connection
Lists the connection size in inches (mm) flare for the liquid line.
Condensate Drain Connection
Details the connection size in inches (mm) for the condensate drain.
Nominal Cooling Capacity
Provides the nominal cooling capacity in tons (kW) for each unit.
Refrigerant
Specifies the type of refrigerant used, HCFC-22.
Blower Wheel Diameter x Width
Lists the dimensions of the blower wheel in inches (mm).
Blower Motor Output
Indicates the horsepower (W) of the blower motor for each model.
Number and Size of Filters
Specifies the number and dimensions of filters required for the unit.
Electrical Characteristics
Details the voltage and frequency (e.g., 208/230/460v, 60 hz, 1 ph).
Shipping Weight
Provides the shipping weight in pounds (kg) for the unit's sections.
Optional Electric Heat Capacity
Details the Btuh (kW) output and AFUE for various electric heater options.
BLOWER DATA
CB19-21 AND CBH19-21 BLOWER PERFORMANCE
Presents air volume data at various speeds and external static pressures for CB19-21 and CBH19-21 models.
CB19-26 AND CBH19-26 BLOWER PERFORMANCE
Presents air volume data at various speeds and external static pressures for CB19-26 and CBH19-26 models.
CB19-31 AND CBH19-31 BLOWER PERFORMANCE
Presents air volume data at various speeds and external static pressures for CB19-31 and CBH19-31 models.
CB19-41 AND CBH19-41 BLOWER PERFORMANCE
Presents air volume data at various speeds and external static pressures for CB19-41 and CBH19-41 models.
CB19-51 AND CBH19-51 BLOWER PERFORMANCE WITH 208/230 VOLT MOTOR
Shows air volume data for CB19-51/CBH19-51 with 208/230V motor at various static pressures.
CB19-51 AND CBH19-51 BLOWER PERFORMANCE WITH 460 VOLT (1 phase) MOTOR
Shows air volume data for CB19-51/CBH19-51 with 460V motor at various static pressures.
CB19-65 AND CBH19-65 BLOWER PERFORMANCE WITH 208/230 VOLT MOTOR
Shows air volume data for CB19-65/CBH19-65 with 208/230V motor at various static pressures.
CB19-65 AND CBH19-65 BLOWER PERFORMANCE WITH 460 VOLT (1 phase) MOTOR
Shows air volume data for CB19-65/CBH19-65 with 460V motor at various static pressures.
ELECTRIC HEAT DATA
CB19/CBH19-21,-26 Electric Heat Data
Details electric heat model numbers, shipping weight, steps, volts, kW, Btuh, and blower amps for CB19/CBH19-21,-26.
ELECTRIC HEAT DATA — CB19/CBH19-31,-41
CB19-31, CBH19-31 and CB19-41, CBH19-41 Electric Heat Data
Provides electric heat specifications for CB19/CBH19-31 and CB19/CBH19-41 models across various voltages and phases.
ELECTRIC HEAT DATA — CB19/CBH19-51
CB19-51 and CBH19-51 Electric Heat Data
Details electric heat specifications for CB19-51 and CBH19-51 models, including various voltage, phase, and step configurations.
ELECTRIC HEAT DATA - CB19/CBH19-65
CB19-65 and CBH19-65 Electric Heat Data
Provides electric heat specifications for CB19-65 and CBH19-65 models, covering multiple voltages, phases, and steps.
DIMENSIONS
CB19 UP-FLOW POSITION
Illustrates and lists dimensions for CB19 units in the up-flow configuration.
CB19 DOWN-FLOW POSITION
Illustrates and lists dimensions for CB19 units in the down-flow configuration.
DIMENSIONS - inches (mm)
UP-FLOW SIDE RETURN AIR FILTER ADAPTOR (CB19-21,-26,-31 and -41)
Provides dimensions for the up-flow side return air filter adaptor for specific CB19 models.
UP-FLOW SIDE RETURN AIR FILTER ADAPTOR (CB19-51 and -65)
Provides dimensions for the up-flow side return air filter adaptor for CB19-51 and CB19-65 models.
CBH19-21,-26,-31 and -41 HORIZONTAL MODELS
Illustrates and lists dimensions for horizontal CBH19 models.
DIMENSIONS — inches (mm)
B19-51 and B19-65 BLOWER SECTION
Shows dimensions for the blower sections of B19-51 and B19-65 units.
CH19-51 and CH19-65 COIL SECTION
Shows dimensions for the coil sections of CH19-51 and CH19-65 units.
CBH19-51 and -65 HORIZONTAL MODELS
Illustrates dimensions for horizontal CBH19-51 and -65 models.
INSTALLATION CLEARANCES – ALL MODELS
Specifies required clearances for installation around the cabinet and ductwork.
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