Friedrich C-90B User Manual

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Service & Parts Manual

C-90BElectronic Air Cleaner

C90B-Svc(3-06)

TABLE OF CONTENTS

 

Friedrich Electronic Air Cleaner ....................................................................................................................................

2

Specifi cations ................................................................................................................................................................

2

CAUTION - Before Operation........................................................................................................................................

4

Operating Your Friedrich Air Cleaner ............................................................................................................................

4

How Electronic Air Cleaners Work ................................................................................................................................

5

Cleaning

 

Important Precautions ......................................................................................................................................

5

Cleaning the Pre-Filter .....................................................................................................................................

5

Cleaning the Carbon Filter ...............................................................................................................................

5

Cleaning the Electronic Cell .............................................................................................................................

6

Alternate Cell Cleaning Method........................................................................................................................

6

Discoloration of the Cell ................................................................................................................................................

6

Replacing the Cell in Cabinet ........................................................................................................................................

7

Activated Carbon Filter..................................................................................................................................................

7

Consumer Troubleshooting Guide.................................................................................................................................

7

Troubleshooting Electronic Air Cleaner.........................................................................................................................

8

Wiring Schematic ..........................................................................................................................................................

9

Major Components........................................................................................................................................................

10

C-90BElectronic Air Cleaner Component Parts List ....................................................................................................

11

Authorized Warranty Repair Stations............................................................................................................................

12

FRIEDRICH C-90BELECTRONIC AIR CLEANER

 

The Friedrich Electronic Air Cleaner is a self-containedconsole model consisting of a high voltage DC power supply, electronic cell, 3 speed fan,pre-filterand activated carbonpost-filterin 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-filteralso helps eliminate many objectionable indoor odors.

SPECIFICATIONS

OPERATING TEMPERATURES

This air cleaner is intended for use at temperatures normally found in conditioned, occupied spaces.

ELECTRICAL RATINGS

115 Volt, 60 Hertz.

INDICATOR LIGHT

Located on the top access cover, next to 3-speedswitch. Indicates air cleaner operating properly.

INTERLOCK SWITCH

Interrupts supply power to unit when access cover is opened or carbon filter is removed.

WEIGHT

35 lbs. shipping weight

30 lbs. net weight

DIMENSIONS

 

Height

Width

Depth

Cabinet

19"

15"

21 1/2"

Cell

16"

12 1/2"

4 1/2"

Pre-Filter

15 7/8"

12 3/4"

1/4"

Carbon Filter

15 7/8"

12 3/4"

1/4"

NOMINAL CURRENT AND POWER CONSUMPTION

 

 

 

 

Power Supply

120 Volt, 60 Hertz

CFM

Amps

Watts

 

High Speed

390

.80

90

Medium Speed

280

.56

64

Low Speed

220

.41

47

2

CAUTION - READ BEFORE OPERATION

Remove the plastic cover from the activated carbon filter and install in unit.

Position the pre-filterat the rear of the unit (closest to the electronic cell) and the carbon filter at the front (where air comes 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 and carbon air fi lter are securely in place.

This unit is equipped with a grounded plug for your protection against shock hazards and should be plugged directly into a properly grounded receptacle.

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. These units should be operated in air-conditionedenvironments

OPERATING YOUR FRIEDRICH AIR CLEANER

CONTROLS

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.

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.

The indicator lamp may flicker on and off and is no cause for alarm. Should the lamp completely fail to come on, review "BEFORE OPERATION" and "TROUBLESHOOTING" sections.

During the initial use, random "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-inperiod, 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.

LOCATION

The best location is a position closest to the concentration of tobacco smoke or dust producing activities.

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 8" (18 cm) 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.

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 benefi ts 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.

3

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.

1The PRE-FILTER catches lint, hair and other large particles, as room air is drawn in through the rear

grille by the powerful 3-SPEED FAN.

2In the IONIZING SECTIONof the ELECTRONIC 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.

3COLLECTOR PLATES immediately attract and hold these "charged" particles much like metal

fi lings are attracted to a powerful magnet. The accumulated particles are permanently removed from the air and cling to the metal plates until washed off.

4most household odors and fumes as the clean air is circulated back into the room.Finally,anACTIVATEDCARBONFILTERremoves

1

 

 

2

3

 

 

 

4

Pre-Filter

 

 

Ionizing

Collector

Carbon

Section of

Plates

Filter

Electronic

Cell

CLEANING

IMPORTANT PRECAUTIONS

Turn off air cleaner before opening top cover to remove electronic cell and pre-filterfor 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.

The collector plates of the electronic cell and the pre-filtercan become extremely dirty. With an excessive amount of contamination buildup on the collector plates and thepre-filter,the electronic air filter's efficiency decreases. Also, as dirt builds up on the ionizing wires, the charge process becomes less efficient.

To prevent this loss of efficiency, the electronic cell and prefilter 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.

CLEANING THE PRE-FILTER

Remove the pre-filterand shake out or brush off the accumulated dust and lint. If this is not adequate, a vacuum may be used or thepre-filtercan be cleaned with a mixture of water and anall-purposealkalinedetergent-basedcleaner to remove tobacco smoke and cooking grease stains. A thorough rinsing is required after each cleaning.

After cleaning, allow to dry completely and reinsert.

CLEANING THE CARBON FILTER

Occasionally, the carbon fi lter 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 616-420-01).THE CARBON FILTER MUST BE IN PLACE FOR THE AIR CLEANER TO OPERATE.

4

CLEANING (CONTINUTED)

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 150°F to 170°F will not harm the cell.

1.After turning off the air cleaner, remove the cell and 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.

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 removed 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.

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 alkaline detergent with hot water in a ratio of 4 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.

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

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 cleaning efficiency. Use an ammonia based or butyl based detergent to clean tobacco tar and other smoke residue from the collector plates.

5

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.

Remember that the electronic air cleaner has a cell key which prevents the cell from being positioned incorrectly. If the cell

ACTIVATED CARBON FILTER

The activated carbon filter should 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

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.

circumstances, the carbon filter should last up 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-filterand 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 should 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 testing with another electric device.

Make sure the carbon fi lter 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.

PROBLEM 2

FAN ON

LAMP OFF

Check the electronic cell to see if any of the collector plates are touching. Gently straighten and evenly space the plates.

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.

PROBLEM 3

FAN OFF

LAMP ON

This condition represents a failure of the air cleaner. Return the unit to an Authorized Warranty Station for repair. See Page 12.

6

TROUBLESHOOTING ELECTRONIC AIR CLEANER

Electrical Troubleshooting Procedure for Electronic Air Cleaner

START

Make sure electronic cell is clean, dry and properly installed

Make sure pre-filterand activated carbon filter are properly installed, and carbon filter is activating filter interlocking switch lever.

TO USE THIS CHART:

1.Follow the steps in order. Don't skip around.

2.Each time you isolate and fix a problem, go back to START.

3.Repeat ALL the steps until the air cleaner checks out OK

WARNING

Some of these steps expose dangerous high voltage. Only a qualified service technician should attempt this procedure.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Check Line 120

 

 

 

 

 

Check filter Inter-

Lamp

Replace Sys-

 

 

 

 

 

 

 

 

 

 

 

120 VAC Present

locking Switch,

Replace the access

 

VAC power. Cor-

On

tem Switch or

 

Access Cover

cover and turn the air

 

rect as needed.

 

 

 

 

 

 

 

fan motor.

 

 

 

 

 

 

Interlocking

Fan

cleaner on. Check Low,

 

 

 

 

 

 

 

 

 

Switch, System

Off

 

 

 

Fan

 

 

 

 

 

 

then Med, then Hi on

 

 

 

 

 

Replace Switch

 

 

Switch.

 

 

 

 

 

 

On

 

 

 

 

 

 

 

multispeed fan.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Both

 

 

Turn OFF power. Make

Lamp

 

 

 

 

Off

Jumper fan

 

Off

 

 

Check fan and

Light

Fan

sure shaft on fan motor

 

 

 

switch contacts

rotates freely. Check for

Fan

 

 

neon light.

On

- For each speed

Off

open windings. Replace if

On

 

 

Both

 

Fan

in turn on multi-

 

necessary.

 

 

 

 

Off

 

speed fans.

 

 

 

 

 

 

 

 

On

 

 

 

 

 

 

 

Push interlock

 

 

 

Remove access

 

 

 

 

 

 

Remove cell.

Light

 

Check 100 VDC

Voltage

Light OK, replace

switch with plastic

 

Voltage

 

Replace access

cover. Check

Below

complete power

handled screw-

 

Arcing

cover, Check

Off

for correct input

correct

voltage across

supply

driver. Short from

 

terminal on lamp.

70 VDC

No

neon light.

 

voltage: 120 VAC.

 

 

 

 

cell frame to a hot

 

Light

 

Models P1 and P2

 

Voltage above 120 VDC

collector plate.

 

 

 

terminals on

 

 

 

 

Arcing

 

 

Off

 

power supply.

Voltage NOT

 

 

 

Inspect cell for

 

 

 

Correct

Replace Light

Yes

 

 

 

 

 

 

 

 

 

- Bent Collector Plates

Cell

 

 

 

 

 

 

Electronic

 

- Broken Ionizer Wires

 

Repair or

Check wiring back

 

 

Air Cleaner is

 

- Dirt on Insulators

Damaged

replace cell

through switch, power

 

 

 

- Damaged or dirty

 

 

 

 

 

OK.

 

 

 

 

cord, and outlet to cir-

 

 

 

Contact Tabs

 

 

 

 

 

 

 

 

 

 

cuit breaker or fuse.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

No cell damage noted

 

 

 

 

 

With Ohmmeter, check

 

 

 

for short between

Cell

 

 

- Cell Frame and Ionizer

Replace Cell

Section

Shorted

 

-Cell frame and Collector Section

 

 

Infinite

 

 

 

 

 

 

 

 

Resistance

 

 

 

 

Clean contacts with fine

 

Cell OK

 

 

 

Check Contact Board for

Dirty

grain sandpaper or emery

 

 

 

 

coating on ground contacts

 

 

 

 

 

 

 

 

cloth.

 

 

 

 

 

 

 

Clean

 

 

 

 

 

 

 

 

 

 

 

 

WARNING

Electronic components on power supply board are not field replaceable. Attempted service will damage the board.

Check wire connections are secured properly

OK

Replace Power Board

Assembly

7

C-90BELECTRONIC AIR CLEANER COMPONENT PARTS LISTING

PART NO.

DESCRIPTION

QTY.

 

 

 

616-203-01

FILTER, PRE .............................................................................................................

1

616-420-01

FILTER, CARBON .....................................................................................................

1

616-424-05

CARTON, RSC..........................................................................................................

1

616-425-00

PACKING, TOP & BOTTOM......................................................................................

2

920-010-01

OWNERS MANUAL C-90B .......................................................................................

1

616-209-01

BUTTON, SYSTEM SWITCH....................................................................................

4

616-211-01

SIDE, CABINET.........................................................................................................

2

616-212-01

LID, CABINET ...........................................................................................................

1

906-081-00

SCREW, #4 - 24 X 3/4"..............................................................................................

2

616-210-01

BASE, CABINET .......................................................................................................

1

906-080-00

SCREW ....................................................................................................................

10

917-018-00

STRAIN, RELIEF.......................................................................................................

1

605-420-10

FAN, 6 BLADE...........................................................................................................

1

616-217-00

ORIFICE ....................................................................................................................

1

616-410-00

BLADE COVER ASSEMBLY .....................................................................................

1

619-893-02

PANEL, CONTROL....................................................................................................

1

906-022-08

SCREW, SELF-TAPPING..........................................................................................

2

906-051-00

SCREW, TAPPING 8A X 3/8 H/W SER ZP ...............................................................

5

906-051-00

SCREW, T/C 8-32X 3/8 H/W SER ZP ......................................................................

5

605-000-96

SUPPLY CORD .........................................................................................................

1

610-714-74

MOTOR .....................................................................................................................

1

616-201-02

POWER SUPPLY ......................................................................................................

1

616-202-01

CONTACT BOARD....................................................................................................

1

616-207-00

SWITCH, SYSTEM....................................................................................................

1

616-215-00

SPRING, CELL GROUND.........................................................................................

1

616-219-00

SWITCH, INTERLOCK..............................................................................................

1

616-220-00

LIGHT INDICATOR....................................................................................................

1

616-224-00

WIRE .........................................................................................................................

1

616-224-01

WIRE .........................................................................................................................

1

616-224-02

WIRE .........................................................................................................................

1

616-224-03

WIRE .........................................................................................................................

1

616-224-04

WIRE .........................................................................................................................

1

616-225-00

PLUG ASSEMBLY.....................................................................................................

1

616-402-00

CAP ASSEMBLY .......................................................................................................

1

616-977-00

TWIST LOK STANDOFF ...........................................................................................

3

616-421-06

BRACKET, GRILLE ASSEMBLY ...............................................................................

2

619-980-00

RIVET, ALUMINUM ..................................................................................................

10

616-213-00

IONIZER/COLLECTOR CELL ...................................................................................

1

616-556-00

IONIZER WIRE..........................................................................................................

9

616-204-00

SWITCH, FILTER INTERLOCK.................................................................................

1

616-931-00

BRACKET, MOTOR MOUNT.....................................................................................

1

250-346-01

LID STRIKER ............................................................................................................

2

 

 

 

8

MAJOR COMPONENTS

9

WIRING SCHEMATIC

10