Carrier 42C Series Product Data page 128

Guide specifications — 42V series
Fan Coil Unit — Vertical Models
HVAC Guide Specifications — 42V
Size Range: 200 to 1200 Nominal Cfm
Carrier Model Numbers:
42VA (Furred-in)
42VB (Cabinet)
42VC (Furred-in, Lowboy, 200 to 600 cfm)
42VE (Cabinet, Lowboy, 200 to 600 cfm)
42VF (Cabinet, Slant Top)
42VG (Furred-in, Wall, 150 and 300 cfm)
Part 1 — General
1.01 SYSTEM DESCRIPTION
Vertical, 2-pipe or 4-pipe, or electric heat, room fan
coil unit for furred-in, or cabinet floor mounted
installation. (42VC and VE are low profile units.)
1.02 QUALITY ASSURANCE
Unit shall be tested and certified in accordance with
AHRI Standard 440, latest edition, and base unit
ETL certified. (Units with special features may not
have ETL certification.) Each coil shall be factory
tested for leakage at 300 psig air pressure with coil
submerged in water. Insulation and adhesive shall
meet NFPA 90A requirements for flame spread and
smoke generation.
1.03 DELIVERY, STORAGE AND HANDLING
Each unit shall be individually packaged from point
of manufacture. Unit shall be handled and stored in
accordance with the manufacturer's instructions.
Part 2 — Products
2.01 EQUIPMENT
A. General:
Factory-assembled, vertical, blow-thru type floor-
mounted fan coil for furred-in or exposed installa-
tions. Unit shall be complete with water coil, fan(s),
motor(s), drain pan, and all required wiring, piping,
controls and special features. Standard insulation
shall be dual density fiberglass insulation.
B. Base Unit (42VA, VC):
1. Outside panels are made of 18-gage galvanized
steel. Lined on the inside with
glass insulation, with a 1 in. long collar for top
supply duct connection. Units shall be supplied
with a 1-in. fiberglass throwaway filter.
2. The drain pan shall be constructed of 18-gage
galvanized steel extending the entire length and
width of the coil(s) and pitched for drainage.
The inside surface of the drain pan shall be
coated with closed cell fire retardant foam insu-
lation. An extension drain pan shall be provided
for installation under the water valves at the job-
site.
C. Cabinet Models (42VB, VE, VF):
1. Cabinet models shall be coated with an Arctic
White baked finish, and include a 1-in. fiber-
glass throwaway filter.
128
1
/ -in. thick fiber-
2
2. Cabinet models shall be free standing with 2
access doors. A stamped supply-air grille shall
be included in the top of the cabinet. (Overall
cabinet height shall not exceed 14
profile 42VE unit.)
3. The 42VF top panel shall slope down from
back to front at an angle of 25 degrees. Stan-
dard stamped grille shall provide a discharge
into the room at a nominal 67 degrees from the
vertical.
D. Furred-In Model (42VG):
1. Cabinet shall be fabricated of 18-gage galva-
nized steel with
tion. Cabinet shall be coated with baked enamel
finish. Removable front panel shall provide ser-
vice access and shall include die-formed supply
and return-air grilles.
2. Combination condensate pan and fan deck
shall be insulated with closed-cell fire-retardant
foam.
E. Fans:
Direct-driven, double-width fan wheels shall have
forward-curved blades and shall be statically and
dynamically balanced. Scrolls and fan wheels shall
be constructed of galvanized steel.
F. Coils:
Standard base unit shall be equipped with a 3-row
(42VA, VB, VF units) or 2-row coil (42VC, VE, VG
units) for installation in a 2-pipe system. Additional
coil depth and circuiting shall be provided for instal-
lation in a 4-pipe system as described in the Special
Features section. All coils shall have
tubes and aluminum fins spacing; Coil fins are
mechanical bonded to tube joints. The copper tubes
comply with the ASTM B-75. The fin thickness is
0.0045 in. and tube thickness is 0.016 in. All coils
are tested with air under water and are suitable for
design working pressures of 250 psig at 220 F.
Burst tested at 350 psig.
G. Controls and Safeties:
Unit shall be furnished with a 3-speed, 4-position
fan switch on a wall plate for field mounting on
furred-in units. Cabinet units shall be furnished with
a factory-installed 3-speed, 4-position fan switch.
Internal wiring from motor and valves shall be in
flexible metal conduit, terminating in the junction
box.
H. Operating Characteristics:
1. A one-coil unit installed in a 2-pipe system shall
be capable of providing heating and cooling as
determined by the operating mode of the cen-
tral water supply system.
2. A double-circuit coil unit installed with a 4-pipe
system shall be capable of providing sequenced
heating and cooling.
1
/ -in. on low
2
1 / -in. thick fiberglass insula-
2
1 / -in. copper
2