Carrier 42C Series Product Data page 8

Options and accessories (cont)
Return-air grilles — Stamped-type return-air grilles are
standard on 42C, V, S units. Anodized aluminum hinged
bar-type grilles are installed on 42CG, CK and DF (avail-
able as an option on 42DA, DC, DE, DD) units.
Risers — The 42S series units can accommodate ¾-in.
(supply and return) and 1-in. (drain) to 2½-in. riser sizes in
2-pipe systems. For other applications, such as reverse
return risers or 4-pipe systems, it may be necessary to
accommodate the additional risers.
Condensate drains are available in sizes down to 1-in. for
greater cost economy. Riser size-reducers are factory-
installed and for risers of over 115-in. length, filler pieces
can be furnished for field installation.
Riser expansion — When necessary, the 42S series
units are provided with factory-installed expansion loops.
These expansion loops provide up to 1 ½-in. of riser
expansion within the standard unit construction. This
means that the unit can be used on installations of up to 20
floors without any additional expansion devices.
Risers material and insulation — The 42S series unit
factory-installed supply, return, and drain risers can be fur-
nished in type M or L copper. All factory-furnished risers
are insulated with flexible closed foam insulation in ½-in. or
¾-in. thickness.
Supply-air grilles — Two types of double deflection
supply-air grilles are available for horizontal and vertical
units; an integral steel grille painted to match the unit or a
separate unpainted anodized aluminum grille. Not applica-
ble to 42VG units.
Tell-tale drain pan — A secondary drain connection is
located above the primary drain to act as a "tell-tale" in the
event that the primary drain becomes obstructed. They can
be applied to either the main drain pan or an extended
main drain pan. This option only available on the 42C,
42V (except 42VG), and 42DA, DC, DE, DF.
Thermostats control packages — The standard ther-
mostat control option is line voltage. Wall-mounted line
voltage and 24-v thermostats are available on the 42 series
fan coil units. 24-v thermostat is not available on the
42VC,VE,VG unit. Thermostat control packages options
refer to page 10-12.
8
Trim strips — Strips are available for use with partially
recessed vertical 42VA units and 42S only.
Wall boxes — Wall boxes are all aluminum with insect
screen behind louvers. The wall boxes are available on all
42V series units except the 42VG units.
DRIP LIP
(Horizontal Unit)
"TELL-TALE" DRAIN PAN
(Horizontal Unit)