background image

Cabinets will support a maximum weight of 400 lbs. when
installed beneath a vertical furnace or air-handling unit. When
setting furnace on cabinet, do not drop it into place. Position
furnace correctly on cabinet to prevent a corner from slipping
down and damaging cabinet.

3. Allow minimum of 16-in. clearance in front of unit for

cleaning and maintenance.

Never use air cleaner to collect grease or other flammable
contaminants.

4. Air outlets and returns must not be blocked with furniture,

drapes, or other objects.

5. Air cleaner should be installed where all air circulated by

system will pass through it.

B. HUMIDIFIERS

An evaporative, supply-duct-mounted humidifier may be installed
without affecting the EAC. A bypass-type evaporative humidifier
should be installed so that the moist air does not contact the air
cleaner. When an atomizing-type humidifier is used, it should
always be installed in the supply-air system.

If an atomizing-type humidifier is installed upstream from the
air cleaner, the efficiency of the electronic cells will be
decreased by high humidity, salts, and minerals. Service
problems will result.

If the bypass-type humidifier is installed upstream from the EAC,
the following precautions should be taken.

1. Humidifier must be installed as far from EAC as possible.

2. A standard, disposable furnace filter must be installed between

humidifier and EAC to trap water droplets and mineral salts.

3. Electronic cells of air cleaner must be washed frequently to

prevent mineral deposit buildup.

C. OUTDOOR AIR

When outdoor air is added to the return-air duct, sufficient heat
must be added to maintain the return-air temperature of 40°F

minimum or minimum specified by air handling equipment.
Temperatures lower than 40°F can cause ionizer wire failure under
certain conditions.

NOTE:

The maximum operating temperature of the EAC is

125°F.

Step 2—Installation

NOTE:

See Fig. 4 for suggested installation positions.

Turn off all power to furnace before beginning any proce-
dures.

Proceed as follows to install EAC:

1. Remove and discard existing furnace mechanical filters. They

are not required when using an EAC. Thoroughly clean
blower compartment of furnace.

2. Move ON-OFF switch to OFF and remove power door by

rotating knob (approximately 10 turns counterclockwise) until
door is free. Grasp power door by knob and remove it from
cleaner cabinet by pulling it towards you. This motion
disengages power supply connector.

3. Slide out pre-filters and air cleaner cells.

4. For Model 016 EAC furnace side application, cut open return

knockout at the side of the furnace cabinet. For Models 012
and 020, cut opening as shown in Fig. 5—Opening Detail.

5. In order to prevent air leakage, use foam tape provided to

attach air cleaner to side of furnace or system blower.

NOTE:

The unit is shipped for furnace right side application. For

left side application, rotate rear mounting flange 180° by removing
4 screws in the back of the air cleaner. Be sure all 4 screws are in
place after the rotation. Relocate the junction box on the furnace to
the right side, if required.

6. Hook back flange into the opening. Use air cleaner cabinet

front support flange adjacent to the unit as template and drill
2 holes on furnace casing. (See Fig. 6.)

7. Secure the unit by screwing 2 screws provided into drilled

holes. (See Fig. 6.)

8. Prepare return-air duct for installation to unit. Return air must

use full cabinet opening. Duct should run straight into unit.

Fig. 3—View of Major Components

A91467

POWER DOOR

ASSEMBLY

PRE-FILTERS

CELL ASSEMBLY

3

Summary of Contents for 31KAX

Page 1: ...y field converted from right to left hand units Cabinets are designed to support up to 400 pounds when used in under the furnace applications CABINET The cabinet includes an electrical junction box and a power safety interlock and houses the air cleaner components These compo nents are 1 Mechanical pre filters Expanded aluminum mesh first stage filter that removes lint and large dust particles 2 C...

Page 2: ...2 26 1 4 A91466 8 1 2 7 8 IN ELECTRICAL ENTRANCE FOR DUCT APPLICATION REAR MOUNTING FLANGE A 3 16 7 8 2 1 16 C B 21 REMOVABLE POWER DOOR ELECTRICAL ENTRANCE 5 8 IN DIA FOR FURNACE APPLICATIONS LOGO OPERATION LIGHT KNOB ON OFF SWITCH 1 Table 1 Component Information MODEL 31KAX012 31KAX016 31KAX020 Air Volume Range 300 1400 500 1800 700 2000 Electrical Data Input to power door 120v single phase 60 H...

Page 3: ... or minimum specified by air handling equipment Temperatures lower than 40 F can cause ionizer wire failure under certain conditions NOTE The maximum operating temperature of the EAC is 125 F Step 2 Installation NOTE See Fig 4 for suggested installation positions Turn off all power to furnace before beginning any proce dures Proceed as follows to install EAC 1 Remove and discard existing furnace m...

Page 4: ...ion of contaminated air Step 3 Electrical Connections All wiring must comply with applicable local and national codes Determine best power wiring routing refer to Section A for Internal Electrical Connections and Section B for External Elec trical Connections Fig 4 Typical Applications A86134 DOWNFLOW APPLICATION RETURN AIR PLENUM FAN COIL UNIT SUPPLY AIR PLENUM ELECTRONIC AIR CLEANER A91468 SUPPL...

Page 5: ...onnect to electrical power source 2 Cut EAC wires to 6 in long Strip the ends Using field supplied wire nuts connect power leads to black and white pigtails extending from female receptacle See Fig 10 NOTE Do not connect aluminum conductor to electrical connec tions of the EAC Use copper wire only 3 Connect power leads as follows a Single Speed Furnaces EAC is wired in parallel with fan motor See ...

Page 6: ... at circuit board terminals AUX 1 and AUX 2 This 24vdc signal is present when either G or W is present and is active in all heating and cooling modes In heat pump applications the G signal is present in both cooling and heating modes permitting the EAC to be controlled from the G signal only For the application a user supplied 24vac relay can be driven by the G terminal eliminating the need for th...

Page 7: ...NER FURNACE TERMINAL BOARD SCREW TERMINAL WIRENUT FACTORY SUPPLIED 120 V FIELD WIRING GRD Fig 12 Multispeed Direct Drive Furnaces with Field Supplied Air Cleaner Relay A91475 WIRENUT FACTORY SUPPLIED 120 V FIELD WIRING 24 V FIELD WIRING ELECTRONIC AIR CLEANER BLK FAN RELAY FAN SWITCH FAN MOTOR WHT OR RED YEL OR WHT GRD GRN BLK AIR CLEANER RELAY FIELD SUPPLIED TO G ON THERMOSTAT TO C ON THERMOSTAT ...

Page 8: ...EAC requires periodic maintenance for optimum performance You may perform this service or have your service man handle it for you Cleaning of the cell assembly and pre filter is required 2 or 3 times a year Frequency will depend on size of home number of occupants smoking habits etc The odor of ozone may be noticeable during operation of an EAC A somewhat higher ozone generation rate during the fi...

Page 9: ... noticeable scum floats to surface try another brand The brand the homeowner finds gives the best results in his dishwasher will probably give best results washing the electronic cells Fig 19 EAC Connection to Multipoise Fixed Capacity Furnace Control Board A94081 HUM HUMIDIFIER TERMINAL 24 VAC 0 5 AMP MAX LED OPERATION DIAGNOSTIC LIGHT HARNESS CONNECTOR 24V TRASFORMER SEC 2 SPARE 1 SPARE 2 EAC 1 ...

Page 10: ...on system fan continuously for approximately 30 minutes before turning on power to air cleaner SERVICE GUIDE Procedures in this section should be performed only be qualified service personnel Electrical shock can cause injury or death 1 During troubleshooting procedures dangerous line voltage circuits are exposed Use care to avoid hazard of electrical shock or damage to equipment Fig 21 EAC Connec...

Page 11: ...f necessary Check to see that ionizer springs are seated properly in place Improper seating may cause arcing d Ionizer springs broken or bent replace if necessary Check to see that ionizer springs are seated properly in place Improper seating may cause arcing e Insulators cracked or broken replace if necessary Deterioration of metal around insulator indicates defective insulator Replace insulator ...

Page 12: ...ower supply b Use high voltage tester Voltage output should be between 9000 and 11000vdc Fig 26 Electrical Troubleshooting Flow Chart A91482 BLOWER ON ENERGIZE UNIT LIGHT ON CHECK CELLS CONTACT SPRING UNIT OPERATING PROPERLY IF CELLS IN PLACE LIGHT OFF REMOVE CELLS CHECK LIGHT LIGHT CIRCUIT CHECK WIRING INSULATORS POWER SUPPLY LIGHT IS ON LIGHT OFF 12 ...

Page 13: ...red with dirt In the case of the two cell units each cell should have an even loading pattern Install turning vanes of air baffles CAUTION Do not block off any of the entering air side opening to the unit Radio or TV interference Accumulation of foreign particles lodged in ionizer section Remove Unit improperly grounded Provide good ground to power pack Ground line of supply line voltage not prope...

Page 14: ...46231 49004c Manufacturer reserves the right to discontinue or change at any time specifications or designs without notice and without incurring obligations Book 1 4 Tab 7a 9a PC 101 Catalog No 533 135 Printed in U S A Form 31KAX 9SI Pg 14 6 94 Replaces 31KAX 8SI ...

Reviews: