Carrier 31KAX - Manual

31KAX
Electronic Air Cleaners
Installation, Start-Up and Service Instructions
INTRODUCTION
Model 31KAX Plate Electronic Air Cleaner is available in three
sizes: 012 (300 to 1400 Cfm), 016 (500 to 1800 Cfm), and 020 (700
to 2000 Cfm).
These plate-type air cleaners are designed for use with residen­
tial and light commercial forced-air heating and/or cooling sys­
tems. They may be installed in a vertical or horizontal section
of a t
5 rpical return-air duct system.
These air cleaners are easily field-converted from right- to left-
hand units. Cabinets are designed to support up to 400 pounds
when used in under-the-furnace applications.
SAFETY CONSIDERATIONS
Improper installation, adjustment, alteration, service, mainte­
nance, or use can cause explosion, fire, electrical shock or other
conditions which may cause personal injury or property dam­
age. Consult a qualified installer, service agency, or your dis­
tributor or branch for information or assistance. The qualified
installer or agency must use factory authorized kits or accesso­
ries when modifying this product. Refer to the individual in­
structions packaged with the kits or accessories when
installing.
Follow all safety codes. Wear safety glasses ar,
Use quench.ing cloth for brazing operations,
guisher available. Read these instructions tho)|
low all warning or cautions attached to the uns
building codes and National Electrical Code (NEC) for special
requirements.
^
It is important to recognize safety inf
safety-alert symbol A. When you see this
and in instructions or manuals, be alert to the pot
sonal injury.
Understand the signal word—DANGER, WARNING, or CAU­
TION. These words are used with the safety-alert symbol.
DANGER identifies the most serious hazards which
will result
in severe personal injury or death. WARNING signifies hazards
that
could result in personal injury or death. CAUTION is used
to identify unsafe practices, which would result in minor per­
sonal injury or product and property damage.
CABINET
The cabinet includes an electrical junction box and a power
safety interlock, and houses the air cleaner components. These
components are:
1 .
2
.
Mechanical prefilters —Expanded aluminum mesh first-
stage filter that removes lint and larger dust particles.
Cell assemblies —Cells consist of combined ionizer and
collector.
Ionizer part of cell has tungsten wires (that receive posi­
tive charge) mounted between grounded aluminum chan­
nels, and supported by glazed ceramic insulators.
Fig. 1—Model 31KAX
Collector part of cell consists of alternately charged collec­
tor plates.
The electronic air cleaner components are (see Fig. 3):
1. A power door assembly.
2. IWo prefilters.
, 3. A cabinet containing two air-cleaning cell assemblies.
4. A parts bag including: electrical bushings, plug buttons,
wire chase and airflow label.
Power Door Assembly
The power door assembly consists of:
1. Unit operation light, ON-OFF switch, and door attach­
ment knob—all installed on door cover.
2. Door base plate contains a solid-state power pack that
converts 120 VAC to high voltage DC (A240V Conversion
Kit, P/N 31KAX900---001-- is available). All wiring
mounted internally. A line-voltage disconnect (male plug)
and high-voltage bus-bar are mounted on the base plate
externally. Four screws must be removed to expose the
power pack and wiring.
The supply circuit to the power pack, which is wired across the
furnace air blower, is controlled by an ON-OFF power switch.
With the power switch ON (assumingpower door in placed and
air blower operating), 120 VAC ±10% single-phase, 60-Hz power
is applied to the power pack (240V Conversion Kit transformer
converts 240V to 120 V AC). Output of the power pack assembly
is approximately 7300 VDC.
Manufacturer reserves the right to discontinue, or change at any time, specifications or designs without notice and without incurring obligations.
Book 1 4 PC 101 Catalog No. 533-134 Printed in U.S.A. Form 31KAX-8SI Pg1 12-91 Replaces: 31KAX-1 SI
Tab 7a 9a