Friedrich Air Cleaner C 90A User Manual

C-90A  
Electronic Air Cleaner  
2003  
Service Information  
C90ASI3(1-03)  
 
Friedrich Electronic Air Cleaner  
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.  
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.  
Specifications  
MODEL C-90A  
DIMENSIONS  
Height  
Width  
Depth  
OPERATING TEMPERATURES  
This air cleaner is intended for use at temperatures  
normally found in occupied spaces.  
Cabinet  
Cell  
19"  
16"  
15"  
21 1/2"  
4 1/2"  
1/4"  
12 1/2"  
12 3/4"  
12 3/4"  
Pre-Filter  
Carbon Filter  
15 7/8"  
15 7/8"  
1/4"  
ELECTRICAL RATINGS  
115 Volt, 60 Hertz.  
NOMINAL CURRENT AND POWER CONSUMPTION  
INDICATOR LIGHT  
Power Supply  
120 Volt, 60 Hertz  
Located on the access cover next to 3-speed  
switch. Indicates air cleaner operating properly.  
CFM  
410  
340  
280  
Amps  
.78  
Watts  
High Speed  
99  
64  
47  
Medium Speed  
Low Speed  
.56  
INTERLOCK SWITCH  
Interrupts supply power to unit when access cover  
.41  
is opened.  
WEIGHT  
35 lbs. shipping weight  
30 lbs. net weight  
Page 3  
 
CAUTION - before operation . . .  
Make sure that the top cover is securely in place.  
Remove the plastic cover from the activated carbon filter  
and install in unit.  
This unit is equipped with a grounded plug for your  
protection against shock hazards and should be plugged  
directly into a properly grounded receptacle.  
Position the pre-filter at the rear of the unit (closest to  
the electronic cell) and the carbon filter at the front (side  
air comes out.)  
Electronic air cleaners should NOT be placed in any  
area where potentially explosive gases or vapors exist,  
nor should they be used in wet environments.  
Make sure the electronic cell is properly placed in the  
cabinet - airflow arrow on the end plate should be  
pointing toward the fan.  
Operating your Friedrich air cleaner  
LOCATION  
CONTROLS  
The best location is a position closest to the concentration  
of tobacco smoke or dust producing activities.  
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 - LOW.  
Plus, an indicator lamp shows when the cleaner is on and  
operating normally.  
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 18 cm (8") 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.  
Generally, HIGH fan speed is used in extreme conditions  
for rapid cleaning, such as after a party where there were  
many smokers;or for large areas where HIGH fan is required  
to circulate the clean air into all areas of the room. MEDIUM  
and LOW settings are usually adequate to maintain a clean  
air environment.  
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.  
At initial start-up, the indicator lamp may flicker on and off  
and is no cause for alarm. Should the lamp completely fail  
to come on, review BEFORE OPERATING and  
TROUBLESHOOTING sections.  
ECONOMICAL CLEAN AIR  
During the initial use, "snapping" sounds may be heard.  
This is normal and the unit may continue to make these  
noises the first few days of operation.After the initial break-  
in period, only an occasional "snap" will be heard, indicating  
the unit is cleaning your air. NOTE: As the air cleaner  
electronic cell becomes dirty, it will “snap” more  
frequently. When this occurs, you should consider  
washing the cell.  
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.  
Page 4  
 
How electronic air cleaners work  
Electronic air cleaners are an extremely efficient, cost effective method of removing indoor air contaminants. Unlike  
standard media that merely block relatively large particles, electronic air cleaners attract and hold particles so small  
that an electron microscope is needed to see them.  
The PRE-FILTER catches lint, hair and large dust  
1
particles, as room air is drawn in through the rear  
grille by the powerful 3-SPEED FAN.  
In the IONIZING SECTION of the ELECTRONIC  
2
CELL, billions of microscopic particles, too small  
to be caught by the pre-filter, become electronically  
charged as they pass through a powerful electric  
field.  
Pre-Filter  
Ionizing  
Section of  
Electronic Cell  
COLLECTOR PLATES immediately attract and  
hold these "charged" particles much like metal filings  
are attracted to a powerful magnet. The  
accumulated particles are permanently removed  
from the air and cling to the metal plates until  
washed off.  
3
4
Collector  
Plates  
3-Speed  
Fan  
Carbon  
Filter  
Finally, an ACTIVATED CARBON FILTER removes  
most household odors and fumes as the clean air  
is circulated back into the room.  
Cleaning  
IMPORTANT PRECAUTIONS  
CLEANING THE PRE-FILTER  
Turn off air cleaner before opening top cover to remove  
electronic cell and pre-filter for cleaning. Always be careful Remove the pre-filter and shake out or brush off the  
when handling the electronic cell. Sharp edges and wires accumulated dust and lint. If this is not adequate, a vacuum  
are capable of inflicting wounds. Care should also be taken may be used or the pre-filter can be cleaned with an all  
when cleaning because of extremely hot water and purpose alkaline detergent based cleaner to remove tobacco  
potentially harmful effects of detergents on your skin.  
smoke and cooking grease stains. A thorough rinsing is  
required after each cleaning.  
The collector plates of the electronic cell and the pre-filter  
can become extremely dirty. With an excessive amount of After cleaning, allow to dry and reinsert.  
contamination buildup on the collector plates and the pre-  
filter, the electronic air filter's efficiency decreases. Also, as  
dirt builds up on the ionizing wires, the charge process  
CLEANING THE CARBON FILTER  
becomes less efficient.  
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  
(Friedrich part number 616-420-00).THE CARBON FILTER  
MUST BE IN PLACE FOR THE AIR CLEANER TO  
OPERATE.  
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.  
Page 5  
 
Cleaning  
CLEANING THE ELECTRONIC CELL  
(Cont.)  
6. If dirt stains or detergent residue remain after washing, it  
may be necessary to rewash the cell or switch detergent.  
ALTERNATE CELL CLEANING METHOD  
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 If an automatic dishwasher is not available or not of sufficient  
normally found in dishwashers 150°F to 170°F will not harm size to accommodate the cell, a large container capable of  
the cell.  
holding the electronic cell can be used.  
1. After turning off the air cleaner, remove the cell and 1. Mix an alkaline detergent with hot water in a ratio of 4  
gently place on 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.  
oz. of detergent to 1 gal. of water. Water temperature  
should be between 150°F and 170°F.Be careful to avoid  
prolonged 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.  
2. Use any available household dishwasher detergent  
recommended for use in your appliance and follow  
manufacturer's instructions.  
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.  
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: 4. Remove the cell from the rinse water and allow to drain  
16" high x 12 1/2" wide x 4 1/2" deep. All parts of the  
dishwasher must be able to move freely.  
and dry before using.  
5. If there is any detergent residue remaining, rinse again,  
since it may affect the efficiency of the air cleaner.  
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 NOTE: The ionizer wires may become so dirty that an  
WIRES AND COLLECTOR PLATES.  
occasional cleaning is recommended. With a damp cotton  
ball, wipe the ionizer wires by placing the wire between finger  
5. The cell may be hot when removed from the dishwasher. and thumb.  
Allow to cool or wear protective gloves. Make sure that  
all water is drained off when removing the cell from the  
dishwasher.  
Discoloration of the cell  
Occasionally, after the cleaning process, the cell may seem The yellowing does not affect air cleaning efficiency. Use  
stained. If the stain is black or very dark, it is probably an ammonia based or butyl based detergent to clean tobacco  
detergent residue and should be rinsed off at once. If tar and other smoke residue from the collector plates.  
yellowing appears, it is probably stain from tobacco or other  
smoke.  
Page 6  
 
Replacing the cell in cabinet  
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 ARCING AND  
PREVENT THE AIR CLEANER FROM OPERATING  
PROPERLY.  
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.  
Remember that the electronic air cleaner has a cell key which  
prevents the cell from being positioned incorrectly. If the  
Activated carbon filter  
The activated carbon filter should be replaced when it is no circumstances, the carbon filter should last up to six months.  
longer effective in eliminating odors. The life of the carbon THE CARBON FILTER MUST BE IN PLACE FORTHE AIR  
filter will depend on the concentration of odors and fumes in CLEANER TO OPERATE.  
the air passing through the air cleaner. Under normal  
Consumer troubleshooting guide  
In the event that you experience problems with the operation  
of your air cleaner, please...  
Make sure the top cover is properly snapped in place.  
Check fan motor and indicator lamp on all speed settings  
starting with low.  
Make sure electronic cell is clean, dry and properly  
installed.  
If your air cleaner still has any of the following problems,  
Make sure pre-filter and carbon filter are both properly proceed step by step as shown below until no further action  
installed. should be taken.  
PROBLEM 1  
PROBLEM 2  
FAN ON  
LAMP OFF  
PROBLEM 3  
FAN OFF  
FAN OFF  
LAMP OFF  
LAMP ON  
Make sure the supply cord is plugged  
into a standard household receptacle.  
Check the electronic cell to see if any  
of the collector plates are touching.  
Gently straighten and evenly space  
the plates.  
This condition represents a non-  
serviceable failure of the air cleaner.  
Return the unit to an Authorized  
Warranty Station for repair. See Page  
12.  
Make sure there is voltage to the  
receptacle by testing with another  
electric device.  
Check the electronic cell to see if any  
of the ionizer wires are broken. See  
Major Components for their location.  
If broken wires are observed, no  
further corrective actions should be  
taken by the consumer. Return the  
unit to an Authorized Warranty  
Station for repair. See Page 12.  
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 the unit  
to an Authorized Warranty Station for  
repair. See Page 12.  
Page 7  
 
Troubleshooting electronic air cleaner  
Electrical Troubleshooting Procedure for Electronic Air Cleaner  
START  
TO USE THIS CHART:  
1.  
2.  
Follow the steps in order. Don't skip around.  
Each time you isolate and fix a problem, go back to  
START.  
Make sure elec-  
tronic cell is clean,  
dry and properly  
installed  
3.  
Repeat ALL the steps until the air cleaner checks out OK  
Ð
WARNING  
Make sure pre-filter and activated  
carbon filter are properly  
installed, and carbon filter is  
activating filter interlocking  
switch lever.  
Some of these steps expose dangerous high  
voltage. Only a qualified service technician  
should attempt this procedure.  
Check filter  
Interlocking  
Switch, Access  
Cover Interlock-  
ing Switch,  
Check Line 120  
Ð
Replace  
System  
Switch or fan  
motor.  
Lamp  
On  
VAC power.  
Correct as  
needed.  
Ï
120 VAC Present  
Replace the access  
cover and turn the air  
cleaner on. Check  
Low, then Med, then Hi  
on multispeed fan.  
Î
Î
Fan  
Off  
Fan  
On  
Replace Switch  
System Switch.  
Î
Î
Lamp  
Off  
Both  
Off  
Turn OFF power. Make  
sure shaft on fan motor  
rotates freely. Check for  
open windings. Replace  
if necessary.  
Ð
Jumper fan  
Fan  
Off  
Light  
switch contacts  
- For each speed  
in turn on  
Check fan and  
neon light.  
Fan  
On  
Î
On  
Both  
Off  
Fan  
On  
multispeed fans.  
Ð
Ð
Push interlock  
Remove access  
cover. Check for Voltage  
correct input  
Remove cell.  
Replace access  
cover, Check  
neon light.  
Î
Light OK, replace  
complete power  
supply  
Check 100 VDC  
voltage across  
terminal on lamp.  
switch with plastic  
handled screw-  
driver. Short from  
cell frame to a hot  
collector plate.  
Light  
Voltage  
Î
Î
Î
correct  
Off  
Below  
Arcing  
No  
Î
voltage: 120 VAC.  
Models P1 and P2  
terminals on  
70 VDC  
Voltage above 120 VDC  
Replace Light  
Light  
Off  
Voltage  
NOT  
power supply.  
Ð
Î
Arcing  
Yes  
Inspect cell for  
Correct  
- Bent Collector Plates  
- Broken Ionizer Wires  
- Dirt on Insulators  
- Damaged or dirty  
Contact Tabs  
Ð
Ð
Cell  
Electronic  
Air Cleaner is  
OK.  
Repair or  
replace cell  
Check wiring back  
through switch, power  
cord, and outlet to  
Î
Damaged  
circuit breaker or fuse.  
No cell damage noted  
Ð
With Ohmmeter, check  
for short between  
- Cell Frame and Ionizer  
Section  
Cell  
Shorted  
Replace Cell  
Î
- Cell frame and  
Collector Section  
Infinite  
Resistance  
Clean contacts with fine  
grain sandpaper or emery  
cloth.  
Ð
Check Contact Board for  
coating on ground contacts  
Dirty  
Cell OK  
Î
Î
Clean  
Ð
WARNING  
Check wire connections  
are secured properly  
Electronic components on power supply  
board are not field replaceable. Attempted  
service will damage the board.  
OK  
Ð
Replace Power Board  
Assembly  
Page 8  
 
Wiring Schematic  
Page 9  
 
Major Components  
C-90A  
Page 10  
 
C-90A ELECTRONIC AIR CLEANER COMPONENT PARTS LISTING  
PART NO.  
DESCRIPTION  
QTY.  
616-203-00  
616-420-00  
616-424-01  
616-425-00  
920-010-01  
616-209-00  
616-211-01  
616-212-01  
906-081-00  
616-417-00  
616-210-01  
906-080-00  
917-018-00  
616-206-00  
616-217-00  
616-410-00  
616-411-01  
906-022-08  
906-047-02  
906-051-00  
605-000-96  
610-714-74  
616-201-00  
616-202-01  
616-207-00  
616-215-00  
616-219-00  
616-220-00  
616-224-00  
616-224-01  
616-224-02  
616-224-03  
616-224-04  
616-225-00  
616-402-00  
616-478-00  
616-977-00  
616-218-00  
616-404-00  
616-976-00  
616-665-00  
616-213-00  
616-556-00  
616-204-00  
616-407-00  
FILTER, PRE ............................................................................................................1  
FILTER, CARBON ....................................................................................................1  
CARTON, RSC .........................................................................................................1  
PACKING, TOP & BOTTOM .....................................................................................2  
OWNERS MANUAL C-90A .......................................................................................1  
BUTTON, SYSTEM SWITCH ...................................................................................4  
SIDE, CABINET ........................................................................................................2  
LID, CABINET ...........................................................................................................1  
SCREW, #4 - 24 X 3/4" .............................................................................................2  
FASTENER ...............................................................................................................4  
BASE, CABINET .......................................................................................................1  
SCREW ...................................................................................................................10  
STRAIN, RELIEF ......................................................................................................1  
FAN, 5 BLADE ..........................................................................................................1  
ORIFICE ...................................................................................................................1  
BLADE COVER ASSEMBLY.....................................................................................1  
PANEL, CONTROL ...................................................................................................1  
SCREW, SELF-TAPPING .........................................................................................2  
SCREW, TAPPING 8A X 3/8 H/W SER ZP ...............................................................2  
SCREW, T/C 8-32 X 3/8 H/W SER ZP ......................................................................5  
SUPPLY CORD ........................................................................................................1  
MOTOR ....................................................................................................................1  
POWER SUPPLY .....................................................................................................1  
CONTACT BOARD ...................................................................................................1  
SWITCH, SYSTEM ...................................................................................................1  
SPRING, CELL GROUND ........................................................................................1  
SWITCH, INTERLOCK .............................................................................................1  
LIGHT INDICATOR ...................................................................................................1  
WIRE ........................................................................................................................1  
WIRE ........................................................................................................................1  
WIRE ........................................................................................................................1  
WIRE ........................................................................................................................1  
WIRE ........................................................................................................................1  
PLUG ASSEMBLY ....................................................................................................1  
CAP ASSEMBLY ......................................................................................................1  
TAB, DUAL GROUNDING ........................................................................................1  
TWIST LOK STANDOFF ..........................................................................................3  
BRACKET, GRILLE ..................................................................................................4  
GRILLE .....................................................................................................................2  
RIVET, PLASTIC.......................................................................................................6  
SPACER, POWER SUPPLY .....................................................................................2  
IONIZER/COLLECTOR CELL...................................................................................1  
IONIZER WIRE .........................................................................................................9  
SWITCH, FILTER INTERLOCK ................................................................................1  
BRACKET, MOTOR MOUNT ....................................................................................1  
Page 11  
 
Regional C-90A Authorized Warranty Repair Stations  
R & B Appliance Parts  
5070 Lindsay Ct.  
Chino, California 91710  
TEL: 714/591-9405  
1-800-421-2189  
B & G Service Co.  
3950 North Elston  
Chicago, Illinois 60618  
TEL: 773/588-2290  
Reeve Air Conditioning, Inc.  
2501 South Park Road  
Hallandale, Florida 33009  
TEL: 954/962-0252  
1
2
3
4
5
1-800-962-3383  
Alamo Service Co.  
1450 North Flores  
San Antonio, Texas 78212  
TEL: 210/227-7571  
1-800-328-2450  
Superior A/C Service, Inc.  
524 Sackett Street  
Brooklyn, New York 11217  
TEL: 718/852-8200  
Use Factory Certified Parts.  
FRIEDRICH AIR CONDITIONING CO.  
Post Office Box 1540 · San Antonio, Texas 78295-1540  
4200 N. Pan Am Expressway · San Antonio, Texas 78218-5212  
(210) 357-4400 · FAX (210) 357-4480  
Printed in the U.S.A.  
C90ASI3 (1-03)  
 

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