Friedrich C-90A User Manual
C-90A
C-90A
Electronic Air Cleaner
Operating Guide
920-010-04 (11/01)
Table of Contents
The Friedrich C-90A Electronic Air Cleaner ......................................................... 3
CAUTION: Before Operating the Unit ................................................................. 3
Operating Your Friedrich Air Cleaner................................................................... 4
Cleaning ............................................................................................................... 4
Important Precautions ................................................................................ 4
Cleaning the Pre-Filter ............................................................................... 5
Cleaning the Carbon Filter ......................................................................... 5
Cleaning the Electronic Cell ....................................................................... 5
Alternate Cell Cleaning Method.................................................................. 6
Discoloration of the Cell ....................................................................................... 6
Replacing the Cell in Cabinet ............................................................................... 6
Activated Carbon Filter......................................................................................... 7
Consumer Troubleshooting Guide ....................................................................... 7
Major Components Diagram ................................................................................ 8
Specifications ....................................................................................................... 8
If You Need Service ............................................................................................. 9
Regional C-90A Warranty Repair Stations........................................................... 9
Electronic Air Cleaner Warranty......................................................................... 10
Page 2
The Friedrich
C-90A Electronic
The Friedrich Electronic Air Cleaner is a self-contained console model
consisting of a high voltage DC power supply, electronic cell, 3 speed
fan, pre-filter and activated carbon post-filter in a rugged plastic cabinet.
Air Cleaner
CAUTION:
Before
operating
the unit
It is designed to remove dust, tobacco smoke, pollen, bacteria and other
airborne contaminants from the air. In just minutes, you will notice
improvements in your indoor air quality as your Friedrich air cleaner begins
the job of removing the billions of irritating microscopic particles from
your home or office. The activated carbon post-filter also helps eliminate
many objectionable indoor odors.
Carry unit by handle indentations on side panels or carry from base,
as the top removes for filter maintenance and will not support the unit.
Remove the plastic cover from the activated carbon filter, and place
the filter with label facing out.
Make sure the electronic cell is properly placed in the cabinet - airflow
arrow on the end plate should be pointing toward the fan.
Make sure that the top cover is securely in place.
This unit is equipped with a three-prong (grounded) plug for your
protection against shock hazards and should be plugged directly into
a properly grounded three-prong receptacle. DO NOT, UNDER ANY
CIRCUMSTANCES, CUT OR REMOVE THE GROUNDING PRONG
FROM THIS PLUG.
Electronic air cleaners should NOT be placed in any area where
potentially dangerous gasses or vapors exist, nor should they be used
in wet environments.
Pre-Filter
Ionizing Section
of Electronic Cell
Collector
Plates
3-Speed Fan
Carbon Filter
Page 3
Operating
CONTROLS
Your Friedrich
Electronic
Air Cleaner
W
a
l
l
All controls for the Friedrich electronic air cleaner are located on the top of the unit and
are accessible through an opening in the top cover. The controls are: OFF, HI, MED and
LOW. An indicator lamp lights when the cleaner is on and operating normally.
Generally, HIGH fan speed is used in extreme conditions for rapid cleaning; such as
during or after a party where there were many smokers; or for larger areas to circulate
the clean air in all areas of the room. MEDIUM and LOW settings are usually adequate
to maintain a clean air environment.
At initial start-up, the indicator lamp may flicker on and off and is not cause for alarm.
Should the lamp completely fail to come on, review the "BEFORE OPERATING" and
"TROUBLESHOOTING" sections.
During initial use, “snapping” sounds may be heard. This is normal, and the unit may
continue to make these noises during the first few days of operation. After this initial
break in period, only an occasional "snap" will be heard, indicating the unit is cleaning
your air. NOTE: As the air cleaner’s electronic cell becomes dirty, it will "snap"
more frequently. When this occurs, you should wash the cell.
The best location for the air cleaner is a place closest to the source of tobacco smoke,
dust or other indoor contaminants.
Position the unit so that the airflow around the intake and discharge grilles is not blocked.
For best results, do not place the intake grille (rear) closer than eight (8) inches from a
wall. Provide a clear, unobstructed path for the discharge air. The farther the discharge
air travels, the greater the effectiveness of the air cleaner. For greater comfort, position
the air cleaner so that the discharge air does not cause uncomfortable drafts.
Cleaning
To use a room air cleaner most effectively in rooms that share an open doorway or
archway, position the unit near the common opening and direct the airflow into the adjacent
room to promote good air circulation.
ECONOMICAL CLEAN AIR
The Friedrich electronic air cleaner costs no more to operate than a standard household
light bulb. The benefits from clean air far outweigh the low operating costs of continuous
cleaning. Remember, the more you operate your electronic air cleaner, the cleaner your
air will be.
IMPORTANT PRECAUTIONS
The collector plates of the electronic cell and the pre-filter can become extremely dirty.
With an excessive amount of contamination buildup on the collector plates and the prefilter, the electronic air cleaner’s efficiency decreases. Also, as dirt builds up on the
ionizing wires, the charging process becomes less efficient.
To prevent this loss of efficiency, the electronic cell and pre-filter must be cleaned regularly.
How often will depend on actual usage. Cleaning will be more frequent if the air cleaner
is operated continuously or under severe conditions.
Turn off and unplug air cleaner before opening top cover to remove electronic cell and
pre-filter for cleaning. Always be careful when handling the electronic cell. Sharp edges
and wires are capable of inflicting wounds. Care should also be taken when cleaning
because of extremely hot water and potentially harmful effects of detergents on your
skin.
Page 4
Cleaning
CLEANING THE PRE-FILTER
(Continued)
Remove the pre-filter and shake out or brush off the accumulated dust and lint. If this is
not adequate, a vacuum may be used or the pre-filter can be cleaned with an all-purpose
cleaning agent to remove tobacco smoke and cooking grease stains. A thorough rinsing
is required after each cleaning. After cleaning, allow to dry and reinsert.
CLEANING THE CARBON FILTER
Occasionally, the carbon filter will need cleaning. Use a stream of air or a vacuum to
remove the dirt. THE CHEMICAL AND ODOR ABSORPTION CAPABILITIES CAN NOT
BE RESTORED. When the carbon filter can no longer remove odors from the air, it must
be replaced. (See Carbon Filter Reorder Form packed with this unit or contact your
nearest Friedrich dealer.) Under normal operating conditions the carbon filter should be
replaced every 3-6 months. THE CARBON FILTER MUST BE IN PLACE FOR THE AIR
CLEANER TO OPERATE.
CLEANING THE ELECTRONIC CELL
The simplest method of cleaning the electronic cell is to use an automatic dishwasher.
The dishwasher provides the correct cycle of wash, rinse and dry. Water temperatures
normally found in dishwashers will not harm the cell.
1. After turning off the air cleaner, remove the cell and gently place on the dishwasher
rack with airflow arrows pointing up. In some dishwashers, it may be necessary to
remove the top rack. BE EXTREMELY CAREFUL WHEN PLACING ON
DISHWASHER RACK TO NOT DAMAGE IONIZER WIRES OR BEND
COLLECTOR PLATES.
2. Use any available household dishwasher detergent recommended for use in your
appliance and follow manufacturer’s instructions.
3. Not all dishwashers may be capable of holding the electronic cell. Be sure to
compare the internal size of the dishwasher to the dimensions of the electronic
cell (16" high x 12 1/2" wide x 4 1/2" deep.) All parts of the dishwasher must be
able to move freely.
4. Take care to avoid damaging the cell when removing it from the dishwasher.
GENTLY LIFT THE CELL STRAIGHT UP TO PREVENT DAMAGE TO IONIZER
WIRES AND COLLECTOR PLATES.
5. The cell may be hot when removing it from the dishwasher. Allow to cool or wear
protective gloves. Make sure that all water is drained off when removing the cell
from the dishwasher.
6. If dirt stains or detergent residue remain after washing, it may be necessary to
rewash the cell or switch detergent.
7. The electronic cell must be COMPLETELY dry before replacing it in the air cleaner
for use.
Page 5
ALTERNATE CELL CLEANING METHOD
If an automatic dishwasher is not available or not of sufficient size to accommodate the
cell, a large container capable of holding the electronic cell can be used.
1. Mix an automatic dishwasher detergent with hot water in a ratio of 4 oz. of detergent
to one gallon of water. Water temperature should be between 150° F and 170° F.
Be careful to avoid prolonging skin contact with solution and DO NOT splash
solution in the eyes.
2. Soak the cell in the solution for about 15 minutes. The solution should be agitated
in some way every 2 to 3 minutes by sloshing or stirring the solution.
3. Remove the cell from the cleaning solution and place in a clean container of hot
water (150° F to 170° F) for rinsing and let set for 10 minutes.
4. Remove the cell from the rinse water and allow to drain and dry before using.
5. If there is any detergent residue remaining, rinse again, since it may affect the
efficiency of the air cleaner.
NOTE: The ionizer wires may become so dirty that an occasional cleaning is
recommended. With a damp cotton ball, wipe the ionizer wires by placing the wire
between finger and thumb.
Discoloration
of the Cell
Replacing the
Cell in
Cabinet
Occasionally, after the cleaning process, the cell may seem stained. If the stain is black
or very dark, it is probably detergent residue and should be rinsed off at once. If yellowing
appears, it is probably stain from tobacco or other smoke. The yellowing does not affect
air cleaner efficiency. Use an ammonia-based detergent to clean tobacco tar and other
smoke residue from the collector plates.
After the cell has been washed, check for broken ionizer wires and bent collector plates.
If broken wires are observed, return unit to Authorized Warranty Station for wire
replacement. If bent collector plates are observed, carefully straighten with a screwdriver
or other flat object. BE CERTAIN THAT NO TWO COLLECTOR PLATES ARE
TOUCHING AS THIS WILL CAUSE AN ARC AND PREVENT THE AIR CLEANER
FROM OPERATING PROPERLY. The operation light will not light and the electronic cell
will not function.
Remember that the electronic air cleaner has a cell key which prevents the cell from
being positioned incorrectly. If the cell seems stuck when being inserted or the access
cover will not fit securely, check to be sure that the cell is being positioned properly. If
excessive force is used, the cell or air cleaner unit could be damaged. Airflow arrows
point toward fan motor.
If the cell is placed into the air cleaner while still damp, the indicator light may not come
on until the cell is dry, which would normally take about two hours. If the cell is energized
and annoying snapping sounds occur, the cell should be removed from the air cleaner
and allowed to thoroughly dry.
Page 6
Activated
Carbon
Post-filter
The activated carbon filter must be replaced when it is no longer effective in eliminating
odors. The life of the carbon filter will depend on the concentration of odors and
fumes in the air passing through the air cleaner. Under normal operating conditions,
the carbon filter should last from three to six months. The carbon filter must be in
place for the air cleaner to operate.
Consumer
Troubleshooting
Guide
In the event that you experience problems with the operation of your air cleaner,
please . . .
Make sure electronic cell is clean, dry, and properly installed.
Make sure pre-filter and carbon filter are both properly installed.
Make sure the top cover is properly snapped in place.
Check fan motor and indicator lamp on all speed settings starting with low.
If your air cleaner still has any of the following problems, proceed step by step as
shown below until no further action needs to be taken.
PROBLEM 1 - Fan Off, Lamp Off
Make sure the supply cord is plugged into a standard household receptacle.
Make sure there is voltage to the receptacle by using any other electric device.
Make sure the carbon filter is in place.
Make sure the top access cover is properly in place in order to actuate the interlock
switch. The interlock switch is provided for consumer safety and should never be
bypassed.
No further corrective actions should be taken by the consumer. Return unit to
Regional Authorized Warranty Station for repair (see page 10.)
PROBLEM 2 - Fan On, Lamp Off
Allow the electronic cell to dry completely before reinstalling it into the unit.
Unplug the unit and check electronic cell to see if any of the collector plates are
touching. Gently straighten and evenly space the plates.
Check electronic cell to see if any of the ionizer wires are broken. See page 8 for
location. If broken wires are observed, no further corrective actions should be
taken by the consumer. Return unit to Regional C-90A Authorized Warranty Station
for repair.
PROBLEM 3 - Fan Off, Lamp On
This condition represents an unserviceable failure of the air cleaner. Return to
Regional Authorized Warranty Station for repair.
Page 7
Major
Components
C-90A
C-90A
OPERATING TEMPERATURES
This air cleaner is intended for use indoors, at temperatures normally found in occupied spaces.
Specifications
ELECTRICAL RATINGS
120 Volt, 60 Hertz.
INDICATOR LIGHT
Located on the access cover next to the 3-speed switch. It indicates that the air cleaner is
operating properly.
INTERLOCK SWITCH
Interrupts the supply power to the unit when the access cover is opened.
WEIGHT
33 lbs. (15 Kg) shipping weight - 28 lbs. (13 Kg) net weight.
DIMENSIONS
Height Width Depth
Cabinet 19" 15" 21 1/2"
NOMINAL CURRENT AND
POWER CONSUMPTION
120Volt, 60 Hertz
Fan Speed CFM Amps Watts
High 410 .80 90
Medium 340 .56 64
Low 280 .41 47
Page 8
If You Need
Service
In the unlikely event that your Friedrich Electronic Air Cleaner should require service,
you should contact your dealer, or see below for the nearest Regional C-90A Authorized
Warranty Repair Station.
If your Friedrich Electronic Air Cleaner should need to be shipped for service, please
contact your nearest Regional Authorized Warranty Repair Station at the phone number
listed below, or contact the Friedrich Customer Assurance Department at
(210) 357-4400 for specific shipping information.
Package your unit or part in the original packing material if possible. If not, use a sturdy
carton and surround the unit or part with an ample amount of material to cushion it
during shipping. Be sure to tape the carton securely. All shipping charges must be pre-
paid by the shipper. Please include a brief description of the malfunction (please be
specific). Be sure that you have included your proof of purchase (date of sale) and the
correct address for the return shipment.
If you have any questions about your warranty coverage or how to obtain warranty
service, please contact the Friedrich Customer Assurance Department at (210) 357-
4400.
Regional C-90A Authorized Warranty Repair Stations
R & B Appliance Parts
11
1
11
5070 Lindsay Ct.
Chino, California 91710
TEL: 714/591-9405
1-800-421-2189
Alamo Service Co.
22
2
22
1450 North Flores
San Antonio, Texas 78212
TEL: 210/227-7571
1-800-328-2450
B & G Service Co.
33
3
33
3950 North Elston
Chicago, Illinois 60618
TEL: 773/588-2290
Reeve Air Conditioning, Inc.
44
4
44
2501 South Park Road
Hallandale, Florida 33009
TEL: 954/962-0252
1-800-962-3383
Superior A/C Service, Inc.
55
5
55
524 Sackett Street
Brooklyn, New York 11217
TEL: 718/852-8200
Page 9
C-90A ELECTRONIC AIR CLEANER
LIMITED WARRANTY
FRIEDRICH AIR CONDITIONING COFRIEDRICH AIR CONDITIONING CO
FRIEDRICH AIR CONDITIONING CO
FRIEDRICH AIR CONDITIONING COFRIEDRICH AIR CONDITIONING CO
Post Office Box 1540 • San Antonio, Texas 78295-1540
(210) 357-4400 • FAX (210) 357-4480
Friedrich Air Conditioning Company warrants its electronic air cleaner to be free from defects in
workmanship or materials, under normal use and service, for a period of One Year from the date of
purchase by the original owner. If at any time during the warranty period, the product is found to be
defective or malfunctions, Friedrich Air Conditioning Company will repair or replace the defective
part (at its option) and provide the shop labor to repair this electronic air cleaner.
This warranty shall not apply if it is shown by FRIEDRICH that the defect or malfunction was caused
by neglect or abuse during operation by consumer.
The repaired or replaced part or unit will be shipped by Friedrich Air Conditioning Company to the
purchaser, freight prepaid. The warranty on any repaired or replacement part shall be for a duration
of time no longer than the remaining or unexpired term of the original warranty.
This warranty does not cover any other charges incurred by the purchaser.
The sole responsibility of FRIEDRICH shall be to repair the product within the terms stated above.
FRIEDRICH SHALL NOT BE LIABLE FOR ANY CONSEQUENTIAL DAMAGES RESULTING FROM ANY
BREACH OF WARRANTY, EXPRESS OR IMPLIED, APPLICABLE TO THIS PRODUCT. Some states
do not allow the exclusion or limitation of consequential damages, so this limitation may not apply to
you.
..
.
..
Page 10
THIS WARRANTY IS IN LIEU OF ALL OTHER WARRANTIES, EXPRESSED OR IMPLIED, AND THE
WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE HEREBY
EXCLUDED BEYOND THE ONE YEAR DURATION OF THIS WARRANTY. Some states do not allow
limitations on how long an implied warranty lasts, so the above limitation may not apply to you.
This warranty gives you specific legal rights, and you may also have other rights which can vary from
state to state.
(9/00)
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