Friedrich C-90B User Manual

Service & Parts Manual

C-90B Electronic 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-90B Electronic Air Cleaner Component Parts List .................................................................................................... 11

Authorized Warranty Repair Stations ............................................................................................................................ 12

FRIEDRICH C-90B 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-ﬁ lter and activated carbon post-ﬁ lter in a rugged plastic cabinet.

It is de signed to remove dust, tobacco smoke, p ollen, bacter ia, 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 ofﬁ ce. The activated carbon post-ﬁ lter also helps eliminate many objectionable indoor odors.

SPECIFICATIONS

OPERATING TEMPERATURES

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

Cabinet 19" 15" 21 1/2"

ELECTRICAL RATINGS

115 Volt, 60 Hertz.

INDICATOR LIGHT

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

INTERLOCK SWITCH

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

WEIGHT

35 lbs. shipping weight 30 lbs. net weight

Cell 16" 12 1/2"4

Pre-Filter 15

Carbon Filter 15

NOMINAL CURRENT AND POWER CONSUMPTION

Power Supply

High Speed 390 .80 90

Medium Speed 280 .56 64

Low Speed 220 .41 47

DIMENSIONS

Height Width Depth

/8"12

120 Volt, 60 Hertz

CFM Amps Watts

/4"

/2"

/4"

CAUTION - READ BEFORE OPERATION

• Remove the plastic cover from the activated carbon ﬁ lter and install in unit.

• Position the pre-ﬁ lter at the rear of the unit (closest to the electronic cell) and the carbon ﬁ lter at the front (where air comes out.)

• Make sure the electronic cell is properly placed in the cabinet (airﬂ ow 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-conditioned environments

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 ex treme 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.

LOCATION

The best location is a position closest to the c onc entration of

tobacco smoke or dust producing activities.

Position the unit so that the airﬂ ow 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.

The indicator lamp may ﬂ icker 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 ﬁ rst 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.

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 airﬂ ow 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.

HOW ELECTRONIC AIR CLEANERS WORK

Electronic air cleaners are an extremely efﬁ cient, 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 other large

particles, as room air is drawn in through the rear grille by the powerful 3-SPEED FAN.

In the IONIZING SECTION of the ELECTRONIC CELL, billions of microscopic particles, too small to be caught by the pre-ﬁ lter, become electronically charged as they pass through a powerful electric ﬁ eld.

COLLECTOR 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.

Finally, an ACTIVATED CARBON FILTER removes most household odors and fumes as the clean air is circulated back into the room.

CLEANING

IMPORTANT PRECAUTIONS

Turn off air cleaner before opening top cover to remove electronic cell and pre-ﬁ lter for cleaning. Always be careful when handling the electronic cell. Sharp edges and wires are capable of inﬂ icting wounds. Care should also be taken when cleaning because of extremely hot water and potentially harmful effects of detergents on your skin.

Pre-Filter

Ionizing Section of Electronic Cell

Collector Plates

Carbon Filter

CLEANING THE PRE-FILTER

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-ﬁ lter can be cleaned with a mixture of water and an all-purpose alkaline detergent-based cleaner to remove tobacco smoke and cooking grease stains. A thorough rinsing is required after each cleaning.

The collector plates of the electronic cell and the pre-ﬁ lter can become extremely dirty. With an excessive amount of contamination buildup on the collector plates and the pre-ﬁ lter, the electronic air ﬁ lter's efﬁ ciency decreases. Also, as dirt builds up on the ionizing wires, the charge process becomes less efﬁ cient.

To prevent this loss of efﬁ ciency, the electronic cell and preﬁ lter 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.

After cleaning, allow to dry completely and reinsert.

CLEANING THE CARBON FILTER

Occasionally, the carbon ﬁ lter will need cleaning. Use a stream of ai r or a vacuum to remove the dir t. THE CH EMICAL AND ODOR ABSORPTION CAPABILITIES CAN NOT BE RESTORED. When the carbon ﬁ lter 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.

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