DP #10005321 3.20.02
OWNER’S
MANUAL
Healthy Climate
™
HIGH EFFICIENCY MEDIA AIR CLEANERS
Model Numbers PMAC-20C and PMAC-12C
Includes Installation and Maintenance Instructions
READ AND SAVE THESE
INSTRUCTIONS
MEDIA REPLACEMENT RECORD
Date Dealer Name
Household dust
is typically an accumulation of particles in a size range of .01
micron (1/2,540,000ths of an inch—invisible to the naked eye) up to 100
microns (the diameter of a human hair).
Pollens and spores
, which can
aggravate allergy symptoms, are usually in the 10–100 micron size range.
The efficiency of this air cleaner on the smallest particle which can be seen
with the naked eye (approximately 10 microns) reaches 99%.
COMMON POLLUTANTS
Particle Sizes in Microns* (1 micron = 1/25,400 inches)
Visible household dust particles, and nearly all pollen and spore particles,
can be caught and permanently held, very easily,
if you can get them to the
air cleaner
. With central high efficiency air filters, the blower of your heat-
ing/air conditioning system performs the air movement function.
Continuous air cleaning is accomplished when your thermostat is set for
continuous air circulation. If continuous air cleaning is not required, set your
thermostat fan switch to the setting you desire. The “Automatic” setting
turns on the indoor blower only when heating or cooling is required. The
“Fan,” “ON,” or “Manual” settings allow you to control blower operation.
If removal of household dust is the major benefit you seek to achieve using
your high efficiency air cleaner, you should operate your indoor blower in
the “Continuous” mode during and after periods when dust is being gener-
ated or “stirred up.” Whether you typically choose continuous or intermittent
fan operation, you should always operate the fan continuously during, and
for the first few hours following, vacuuming. The vacuuming process dis-
lodges large volumes of dust particles, which must be drawn into your air fil-
ter. Many of the dust particles are so heavy they “fall out” of the air before
they can be drawn into the air cleaner. This is why it is more efficient to dust
your house several hours after vacuuming.
5
2
AIRFLOW
AIRFLOW
AIRFLOW
AIRFLOW
30˚
MAX.
45˚
MAX.
B
W/O DOOR
C
F
W/ DOOR
G
OUTLET SIDE
FURNACE CONNECTION
INLET SIDE
RETURN DUCT CONNECTION
FIGURE 4
Highboy with Transition
FIGURE 2
Horizontal Installation
FIGURE 1
Upflow Closet Installation
(Model PMAC-12C Recommended)
FIGURE 3
Highboy Installation
FIGURE 5
Models PMAC-12C/PMAC-20C
A
D
FRONT
H
J
E
DIMENSIONS − INCHES (MM)
D
C
B
A
10
(254)
Model No
A
B
C
D −
Inlet Side
D −
Discharge Side
Model No.
inches
mm
inches
mm
inches
mm
inches
mm
inches
mm
PMAC−20C
22
559
26
660
19−3/4
502
21−1/2
546
22
559
PMAC−12C
17−3/4
451
28−3/4
730
15−1/2
394
23−7/8
606
24−5/8
625
ResearchPr 57 High Efficiency 4/17/02 3:32 PM Page 1
