2
Fan wheels are designed to
provide low operating costs
The forward-curved, centrifugal,
double-inlet fans are statically and
dynamically balanced at the factory to
minimize transmission of vibration
to the building structure.
The belt-driven motor (single or
three phase) has a variable-pitch pulley
which adjusts at the jobsite to accom-
modate limited ranges of air quantities
and pressures.
All motors (single and three phase)
are UL listed, factory wired, single
speed with thermal overload protec-
tion and are continuous duty rated.
Motors are supplied with permanently
lubricated bearings, class-B insulation
and are open drip-proof. The motor
mount has an adjustable platform for
easy belt adjustment. The motor and
its mounting are independently isolated
from the cabinet and the blower. An
adjustable pitch pulley allows cfm bal-
ancing to meet system requirements.
Motor drive packages are provided
with keyed pulleys.
Complete factory assembly
minimizes on-the-jobsite costs
and problems
Compact, lightweight units are designed
for easy mounting. Knockouts designed
to accept
3
/
8
-in. threaded rods are
provided on the top and bottom of each
corner of the unit One-in. duct collars
on discharge and on return are fur-
nished standard. These integral duct
collars cut installation time and labor
expense.
Durable construction means
easy-to-maintain units
The 42BHC,BVC fan coils casings are
fabricated from heavy-gage galvanized
G90 steel, reinforced for maximum
rigidity and structural strength. Remov-
able side panels with tool-less camlock
fasteners allow easy access for servic-
ing interior components.
One-inch matte surface, fiberglass
thermal/acoustical insulation lines the
fan coil cabinets to prevent sweating
and to muffle sound transmission.
The stainless steel, double-sloped
condensate drain pan extends under
full coil surface to cut maintenance
costs.
Slide-in return-duct collar filter
makes it possible to remove and
replace the filter without disturbing
return air ductwork.
Table of contents
Page
Features/Benefits. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1,2
Model Number Nomenclature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Physical Data. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Options and Accessories. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4,5
Base Unit Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-13
Accessory Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14-18
Application Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19-21
Selection Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
Performance Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23-33
Typical Wiring Schematics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34-36
Electrical Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
Controls . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
Guide Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39,40
INTERNAL FEATURES OF A 42BHC FAN COIL UNIT
