Carrier 42BVC Fan User Manual


 
Manufacturer reserves the right to discontinue, or change at any time, specifications or designs without notice and without incurring obligations.
New Pg 40 Catalog No. 524-236 Printed in U.S.A. Form 42B-1PD
Replaces: 42BHC-1PD
Book 3
Tab 7a
Carrier Corporation • Syracuse, New York 13221 9-05A 9-05
Book 4
Tab 4FC4
2) One-in. pleated, (2) 1-in. throwaway or
2-in pleated MERV 11 filters with 2-in.
pre-filter shall be installed as indicated
on the equipment schedule.
c. Insulation:
1) Units shall be equipped with 1-in. thick
Tuf-Skin™ II insulation (standard).
2) Units are available with ¾-in. closed
cell, 1-in. Tuf-Skin Rx™ edge sealed,
or 1-in. foil-faced insulation.
d. Controls:
1) Unit shall be equipped with 24-v trans-
former, motor contactor and terminal
strip for connection to field or factory
provided controller.
2) Unit shall be equipped with interlock-
ing door-disconnect switch, touch-type
fusing, 24-v transformer, motor con-
tactor and terminal strip for connec-
tion to field provided controller.
3) Unit shall be equipped with interlock-
ing door-disconnect switch, separate
motor and electric heater touch-type
fusing, 24-v transformer, motor con-
tactor and terminal strip for connec-
tion to field-provided or factory-
provided controller.
e. Motor(s):
Single-phase motors are capacitor start and
shall include automatic reset thermal over-
load protection and shall be available in
115, 208, 230, or 277 volts (60 Hz).
Three-phase motors shall be available in
208, 230, or 460 volts (60 Hz).
f. Electric Heat:
1) Electric heaters shall be constructed of
high-grade resistance wire supported
by ceramic insulators on plated steel
brackets. The heat elements shall be
suspended in front of the outlet, after
the blower and coil. High-limit thermal
cutouts shall protect the heat elements
in the event of an air failure.
2) Single-phase heaters shall be available
in 115, 208, 230, or 277 volts (60
Hz). Three-phase electric heat shall be
available in 208, 230, or 460 volts (60
Hz).
2. Field-Installed Accessories:
a. Mixing Boxes:
1) Mixing boxes shall be preassembled at
the factory and shipped separately with
base rails.
2) Mixing boxes shall include
a linkage kit, which consists of two
crank arms, 2 swivels and a rod, 25 in.
long (for unit sizes 06-16) or 84 in.
long (for unit sizes 20-40), for the field
installation of the actuator.
b. Thermostats:
Three thermostats shall be available for
field installation:
1) The single stage heat thermostat shall
feature manual changeover, off-cool-
heat system switch, on-auto fan mode
switch, single-stage electric heat, and
outside air signal.
2) The 2-stage heat thermostat shall fea-
ture automatic/manual changeover,
digital display of temperatures and all
functions, off-cool-heat-auto system
mode buttons, single speed fan opera-
tion, on-auto fan mode button, single
or two stage electric heat signal, out-
side air signal and optional remote
temperature sensor.
3) The single-stage heat, 2-pipe heat/
cool thermostat shall feature digital
display of ambient temperature and
operating mode, single fan speed oper-
ation, power and operating mode but-
tons, continuous fan operation, cycling
water control valve, 4-pipe automatic
changeover/manual changeover with
“on-auto” fan mode button, optional
one or 2-stage electric heat signal, and
purge cycle, temperature sensor for
2-pipe cold water/hot water systems,
and programmable operating range,
dead band, digital display, tempera-
ture set-back.
c. Valve Packages:
1) Valve packages shall be factory-
assembled for field installation.
2) Basic valve packages shall include
2-way or 3-way valves with balancing
valves and 2 ball valves.
3) Deluxe valve packages shall include a
circuit setting and a strainer in addition
to the features included in the basic
valve package.
Guide specifications (cont)