Lennox B Series Manual

E N G I N E E R I N G D A T A
FEATURES
CABINET
Enhanced grommets - secure & tight.
Multi-position available from factory and field
convertible.
Side return right- or left-hand capable on 12 to 30 and
36 size models.
All air handlers are basiloid packaged with bar coding
and full description on label.
Magnetic filter rack door makes for easy filter
replacement and a tight seal for less air leakage.
Fiberglass air filter comes with every air handler and
filter racks accepts readily available size filters.
Rigid beige painted cabinets constructed of heavy
gauge steel to prevent corrosion and are lined with high
quality
9.5 mm (5/8 in.) foil faced insulation to prevent
sweating.
EVAPORATOR COIL
Patented lanced fin design and internally enhanced
copper tubing.
Suitable for use with R-22 and R-410A.
Dual 19 mm (3/4 in.) FPT left and right condensate
drain connections.
Drain pans are molded of corrosion proof high
temperature engineering polymer.
Coils are air pressure tested at 72 kPa (500 PSI),
pressure tested with Helium, sealed and then charged
with dry air.
Florator, non-bleed A/C or HP TXV's available factory
installed. Screw-on TXV's also available for field
installation.
HOT WATER HEAT
Suitable for potable water systems.
Hot Water Heat Kits available both factory and field
installed.
Easy to replace hot water coil. Remove one screw and
slide out.
Optional factory installed circulating pump fully encased
in cabinet.
Purge valve on hot water coil allows for manual release
of any air trapped in coil during installation or servicing.
Water connections 7/8 in. ODF (for 3/4 in. water pipe)
on 12 to 30, and 36 size models and 1-1/8 in. ODF (for
1 in. water pipe) on 31, and 37 - 60 size models.
Control board comes standard factory installed on all
Air Handlers and includes the following features:
Features are compatible with both factory and field
installed circulating pumps.
R-410A or R-22 - Multi-Position - 50HZ/60HZ (Export Only)
1. Pump timer activates pump for 1 minute every 6
hours eliminating stagnant water in hot water coil.
2. 24 VAC isolation valve control-allows for zoning
control.
3. Auxiliary contacts for water heater or boiler
activation.
4. Freeze protection- standard factory installed,
activates at 4°C (40°F) and deactivates at 21°C (70°F).
5. Thermostat connections.
6. Time delay for blower activation:
• 60 seconds (tap in OFF position)
• 54°C (130°F) Aquastat (tap in ON position)
Note: Aquastat tap only included if ordered
A I R H A N D L E R S
B SERIES
3.5 to 17.6 kW (1 to 5 Tons)
Optional Electric Heat - 2.5 to 25 kW
Optional Hot Water Heat -
2.6 to 36.3 kW (9,000 to 124,000 Btuh)
Bulletin No. 490137
September 2009