Model Number Identification - Lennox CBA25UHE Series Unit Information

Model Number Identification

Unit Type
CB = Air Handler
Refrigerant Type
A = Aluminum Coil/R-410A
Air Flow – Cooling Blower Speed
The cooling blower speed is factory configured to provide
correct air flow for an outdoor unit that matches the cool-
ing capacity rating of the air handler.
If the outdoor unit is smaller than the maximum cooling ca-
pacity rating for the air handler, the cooling blower speed
may need to be changed. Refer to blower performance
charts on pages 6 and 7.
WARNING
Electric shock hazard! - Disconnect all power
supplies before servicing.
Replace all parts and panels before
operating.
Failure to do so can result in death or
electrical shock.
ADJUSTING BLOWER SPEED
Motor Speed Taps
NOTE – Motor is programmed for a 45-second OFF delay
on all speed taps except TAP #4 (electric heat 120-second
OFF delay).
These settings are for nominal tonnage match-ups with
the units. When matched with other sizes, it is recom-
mended that the CFM be adjusted to approximately 400
CFM per ton.
CB A 25 UH E - 030 - 230 - 01
Series
Blower Motor
Nominal Cooling Capacity
024 = 2 tons
030 = 2.5 tons
036 = 3 tons
042 = 3.5 tons
Tap Operation
1 Continuous fan
2 Lower tonnage
speed
3 A/C or heat pump -
no electric heat
4* A/C or Heat pump
with electric heat
5 High static
applications
* Tap 4 is minimum setting for electric heat
Page 5
Minor Revision Number
Voltage
230 = 208/230V-1 phase-60hz
Remarks
Continuous fan speed is
energized (24 volt input to G).
nominal capacity (e.g. if 3-ton
air handler is used with 2.5-ton
outdoor unit).
at minimum static allowed.
ton at .5 static. Energized when
electric heat element has a call
for heat.
at .8 static.
TABLE 1