Carrier EACA Manuel utilisateur

Electronic Air Cleaner

Sizes 00!4, 0020, & 2020

Manual for:

Installation o Operation o Maintenance

CAUTION: Read installation instructions and rules carefully for safe operation,

Exercise the usual precautions when working with high voltage,

Form # IM-EACA-01 Date t/03

Table of Contents

Safety Considerations & Introduction

Unit spedflcations

Facts you should know about your new Electronic Air Cleaner

1) Regular dusting & "white dust"

2) Ozone

3) Air flow sensor operation

4) High akitude applications

Replacing the ionizing wires

Common Q & A

Maintenance of your Electronic Air Cleaner

1) Removing the cells and prefllter

2) Washing the cells and prefllter(s)

3) Replacing the cells and prefiiter(s)

Common troubleshooting techniques

Installation instructions ( for use by authorized HVAC

contractors)

Technical troubleshooting flowchart

Replacement part list

List of figures

Figure 1

Figure 2

Figure 3

Table 1

Figure 4

Figure 5

Figure 6

Figure 7

Figure 8

Figure 9

Figure 10

Air flow sensor diagram

Reducing ozone in high altitude applications

Cleaning the ionizing-collector cells

Symptoms of excessive arcing or zapping

Unit dimensions

Technical specifications

Typical HVAC system configurations

Sheet metal transitions

Turning vanes from improving air flow

Proper installation of cell spacer

Proper mounting diagram

Wiring the unit to the input power source

Electrical schematic diagram

Testing the power supply output

Troubleshooting flowchart

Unit p a r t s diagram

Page

8-9

15-29

29-30

31-32

Page

29-30

31-32

NOTE: Read the entire instruction manual before startinc the installation.

Safety Considerations

Improper installation, adjustment, alteration, service, maintenance, or use

can cause explosion, fire, electrical shock, or other conditions which may

cause personal injury or property damage. Consult a qualified installer,

service agency, or your distributor or branch for information or assistance.

The qualified installer or agency must use factory authorized kits or

accessories when modifying this product. Refer to the individual instructions

packaged with the kits or accessories when installing.

Follow all safety codes. Wear safety glasses and work gloves. Read these

instructions thoroughly and follow all warning or cautions attached to the unit.

consult local building codes and National Electric Code (NEC) for special

requirements.

Recognize safety information. This is the safety-alert symbol Z_ .When you

see this symbol on unit or in instructions and manuals, be alert to potential for

personal injury.

Understand the signal words DANGER, WARNING, and CAUTION. These

words are used with the safety alert symbol. DANGER identifies the most

serious hazards which will result in severe personal injury or death.

WARNING signifies a hazard which could result in personal injury or death.

CAUTION is used to identify unsafe practices which would result in minor

personal injury or product and property damage. NOTE is used to highlight

suggestions that will result in enhanced installation, reliability, or operation.

This manual provides information for location, installation, operation and

service. Before installation and use of the air cleaner, carefully read these

instructions to insure maximum benefits from the unit and to avoid needless

service costs that can result from improper installation.

mNTRODUCTmON

Thiselectronicair cleaneris technicallyknownasa two-stageelectrostatic

precipitator. Theair cleaneris designedto removeairborneparticulates,

includingdust,dirt,smoke,pollen,virus,spores,bacteriaandmold,fromindoor

air.

Airmovementthroughtheunitisprovidedbythe heating,airconditioningor

ventilatingsystemblower.Asdirty air entersthe air cleaner,the air passes

throughametalmeshprefilter.Theprefilterpreventslint,pethairandotherlarge

particulatesfromenteringtheaircleaner.Htitsimportantthatthesefiltersbein

placeto preventexcessivedirtloadingoftheaircleanercollectorcells.These

filters extendthe time betweenmaintenanceof the air cleanercollector

cells.Thisallowsthe ionizing-collectorcellsto providecleanairfor a longer

periodbetweenwashings.

Theprefilteredairthenpassesthroughatwo-stageElectronicAirCleaner.Inthe

first stage,all airborneparticulate,evensubmicronsize,are electronically

charged(positive)astheypassthroughtheionizer.Theionizerfieldissetupby

a coronadischargeemanatingfromthefine,tightlystrungwiressuspended

betweentwoadjacentflatplates.Inthesecondstage,thechargedparticulate

passesthroughan intenseelectricalfield establishedbetweenalternately

chargedandgroundedparallelcollectorplates.Here,thepositivelycharged

particulateisattractedtothenegativelygroundplatesandremovedfromtheair

stream.

Foraunitdiagramandacompletelistingofallparts,pleaseseepage31-32.

POWER ]RAY ASSEMBLY

COVER ON-OFF SWITCH

fND_CATING

CELL

CON[ACT

POWER TRAY

ASSEMBLY

CABINET

COLLECIiNG CELL(S)

UNiT SPECiFiCATiONS

This air cleaner is easyto install, operate and maintain. Its basic components

arethe:

Cabinet

Mounts to existing ductwork; houses the ionizing-collecting cells and

prefilters.

IonizingoCoHector Cells

Collect the dust, dirt and other particulates in the air. They contain the

ionizing and collecting sections as described on page 2. The cells must be

installed with ionizing wires on the air intake side. A spring contact is located

on the top of each cell and must be in position to make contact with the

contact board assemblies on the bottom ofthe power tray assembly.

Prefilters

Trap large particulates before it enters the ionizing-collector cells.

Power Tray Assembly

Contains the indicating light, solid state power supply, contact boards and

electrical controls including ON/OFF switch and safety interlock switch.

Awidng compartment is provided at the rear of the tray allowing the option to

permanently wire the unit directly to a furnace control.

Air Flow Sensor (AFS)

Installed on certain models, this part brings the unit on by sensing the

movement of air within the duct.

How to identify Which Air Cleaner Modem you own

The model number and serial number for your Electronic Air Cleaner can be

found on the data label located on the inside of the access door. This serial

number will be a ten (10) digit number.

FACTS YOU SHOULD KNOWABOUTYOUR NEW

ELECTRONIC AiR CLEANER

Dusting and "White Dust"

Your new Electronic Air Cleaner will efficiently clean and filter your household

air. Unfortunately, it will not eliminate the need for regular dusting of your

furniture and belongings. Due to the design of all duct-mounted air cleaners,

they can only clean the air that reaches the air cleaner. Therefore, if the

particulates are not being carried to the air cleaner in the air stream, the air

cleaner cannot remove them from your home.

Occasionally a "white dust" may be noticed in bedrooms or newly furnished

rooms. This is mainly composed of lint which, because it is heavier than other

particulates, settles before it reaches your unit.. This "white dust" is not mixed

with airborne dirt particles, therefore, it is clean and has no staining or soiling

properties. However, running the furnace blower continuously, day and night,

will help reduce this from occurring.

Ozone

Under normal operating conditions all Electronic Air Cleaners produce

minute quantities of ozone as an incidental by-product. In fact, all electronic

products, such as televisions, cordless phones and refrigerators, produce

some amount of ozone. The average homeowner can detect the smell of

ozone concentrations as low as 25 to 100 ppb (parts per billion). The design of

this unit has been tested and ozone production is approximately half of the

published permissible limits established by the Environmental Protection

Agency. These limits recommend that the concentration of indoor ozone not

exceed 50 ppb. Ozone is not harmful in these concentrations. In fact, the

ozone level in major cities can sometimes reach as high as 100 ppb on a

summer day. The addition of optional charcoal after-filters can help reduce

this.

Normally, a new unit will produce more ozone than one that has been in

operation for several weeks. This is due to sharp corners or manufacturing

burrs on the ionizing-collecting cell(s) and is normal. As the Electronic Air

Cleaner arcs and zaps, the voltage is vaporizing these areas and tends to

round them off. This is part of the breaking-in period of ownership and the

issue is self-correcting. Also, high-altitude locations can be more susceptible

to noticing the presence of ozone.

An ionizing-collecting cell that has been damaged or bent (the designed

spacing between electrically charged and ground components has been

decreased) may also produce an abnormal amount of ozone.

Turn OFF power and install lockout tag before beginning any maintance procedure.

How the Air How Sensor Works (Available on specific modems)

The electronic AFS was designed to provide an efficient and reliable method

of controlling the operation of the air cleaner when the dealer is unable to

wire the unit directly into the furnace blower. The electronic AFS utilizes a

thermistor that heats up to approximately 130°R The AFS then stabilizes at

this temperature and when the furnace blower turns on and air flows through

the ductwork, the same vacuum effect pulls cooler air over the hot surface.

This air movement cools down the thermistor and this cooling down effect

allows the electronic AFS to understand that the furnace blower is moving air

and the Electronic Air Cleaner must turn on to provide air cleaning.

If the air cleaner is installed in a location that is dusty and dirty, the sensor on

the AFS can become coated with dirt and lint. This coating can insulate the

AFS and keep it from operating properly. To clean the thermistor, take a

cotton swab dipped in rubbing alcohol and carefully insert it into the hole

located on the right hand side of the power pack assembly (when facing the

unit). The hole is 3/16" in diameter and is located on the front of the power

tray assembly. Carefully twirl the cotton swab between your fingers, making

sure the tip is lightly in contact with the g[_ disc, cleaning this coating from

the thermistor.

Figure 1

H_h Altitude Operation

Because the air is less dense at higher altitudes, there is a possibility of

nuisance arcing. The homeowner can quickly and easily correct this

condition.

1. Turn the unit OFF and turn offcircuit breaker.

2. Remove the two screws that secure the cover to the power tray and

remove it from the unit. (The entire power supply tray may be removed

from the cabinet by removing two screws from inside the cabinet.) Do

not lose these screws.

3. Locate the jum per terminal (see figure 2).

4. With a pair of needle nose pliers, carefully adjust the jumper settings

from HIGH to MED. Ensure that the jumper is firmly seated in the

terminal.

5. Replace the power tray cover and secure itwith the two screws.

6. Replace the access door and turn the unit ON.

This procedure will slightly reduce the output voltage, minimize arcing and

reduce ozone production. If the condition does not improve, repeat the

above procedure and move the jumper setting from MED to LOW. If this

does not correct the situation, contact your local HVAC dealer.

All Electronic Air Cleaners are produced at the factory with the jumpers set in

the HIGH position. However, the output voltage may be lowered in any

situation where the unit is arcing excessively or there is excessive ozone

production.

Figure 2

REPLACING THE _ON_ZJNG WIRES

Ionizing wire breakage is minimal because of the constant tension design

and fixed location of the ionizing wire supports. When an ionizing wire

breaks, the efficiency of the Electronic Air Cleaner will decrease slightly.

However, the unit will continue to operate with broken ionizing wires as long

as the broken wires have not caused a short circuit of the unit. Remove all

loose and broken wires as soon as they are identified.

Although the replacement of the ionizing wires can be attempted by a

homeowner, it is recommended that a qualified HVAC contractor be

contacted for replacement parts and/or servicing. Wires are supplied in a

coiled spring configuration, with a clinch nut on each end of the wire.

Replacement requires a pair of needle nose pliers. Exercise caution in

removing any broken wires in the collector cell. This will prevent accidental

shorting of the cell and reducethe need for further maintenance.

Use the following procedure when replacing an ionizing wire.

1. Ensure that all power to the Electronic Air Cleaner is OFF, remove the

access door and remove the ionizing-collector cells from the unit.

2. Carefully remove all remains of the broken wire.

3. Grip the new wire at each end of the wire with your thumb and index

finger. While stretching the wire to approximately 6" allow one end of

the wire to uncoil between your thumb and index finger.

4. Place one end of the wire in the slot of the stainless steel support on

the collector cell from the front of the cell. This support is partially

covered bythe cell brace in front of the support.

5. Grip the other end of the ionizing wire with needle nose pliers and

insert the terminated end of the wire into the slot on the support bar of

the opposite end of the collector cell.

6. The wire should be tight enough to be self supporting and remain

suspended between the two support slots in the support bar.

Common Questions and Answers

Q. Why isn't my air cleaner cleaning my air?

A. The air cleaner is most likely working just like it was designed.

However, many factors can affect the performance of the unit. Are cold air

registers located in the ceiling? If so, it will be difficult for the air flow to

carry heavier particulates to the air cleaner. Ifthe dirt doesn't getto the air

cleaner, it can't be removed from the air. Are both the Red and Green lights

illuminated? If not, then the unit may be in need of servicing. Contact your

local HVAC dealer for assistance.

Q. It still isn't cleaning my air the way Iwant it to. What can I do?

A. We recommend that you run the blower continuously so that the air

movement will carry the dirt to the air cleaner. Unfortunately, there will

always be some dirt that is left behind on the appliances, furniture, etc.

Regular dusting is recommended to stir up these pockets of dust so that

they can enter the airstream and be removed by the Electronic Air Cleaner.

Q. When I turn on my Electronic Air Cleaner, the lights come on for a couple

of seconds and then turn off. The air cleaner isn't working!

A. The air cleaner is fine as long as both the Red and Green lights are

coming on. Try turning the HVAC blower OFF and then turning the

Electronic Air Cleaner on. This should solve the problem.

Q. What is the zapping noise I'm hearing from my unit? Should I be

concerned?

A. The zapping or popping noise that you are hearing is the sound of larger

particles being "vaporized" by the ionizing-collector cell. This is normal

and is no cause for alarm. As your HVAC system blower moves the air

through the ductwork and aNows the Electronic Air Cleaner to clean the

air, the noise will diminish. However, there will always be instances when

larger particles enter the ionizing-collector cell.

Q. Should Ihear this zapping noise all the time?

A. All Electronic Air Cleaners will occasionally zap or pop as larger particles

pass through the ionizing-collector cells. However, if the sound is

constant or is repetitive in nature, then a large particle may have become

lodged in the ionizing-collector cells and they may require cleaning. If

cleaning the ionizing-collector cells does not stop the noise and there

are no large particles trapped in the ionizing-collector cells, then the

cause could be a broken/loose ionizing wire, bent collector plate or

other mechanical reason. Please contact your local HVAC dealer for

assistance.

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