Carrier 31KAX Installation, Start-Up And Service Instructions Manual Download Page 7

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Fig. 13—Multispeed Direct-Drive Furnaces with Field-

Supplied Sail Switch

A91474

WIRENUT, FACTORY SUPPLIED

120-V FIELD WIRING

POWER SUPPLY (120V-60HZ-10)

BLK

WHT

FAN SWITCH

FAN MOTOR

GRD

GRN

BLK

WHT OR YEL

ELECTRONIC
AIR CLEANER

Fig. 11—Single-Speed Furnaces

A91474

WIRENUT, FACTORY SUPPLIED

120-V FIELD WIRING

POWER SUPPLY (120V-60HZ-10)

BLK

WHT

FAN SWITCH

FAN MOTOR

GRD

GRN

BLK

WHT OR YEL

ELECTRONIC
AIR CLEANER

Fig. 14—Furnaces with Printed-Circuit Board

A91477

EAC1 EAC2

GRN

BLK

YEL OR WHT

ELECTRONIC
AIR CLEANER

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

RED

YEL

WHT

GRD

GRN

BLK

AIR CLEANER
RELAY (FIELD
SUPPLIED)

TO "G" ON
THERMOSTAT

TO "C" ON
THERMOSTAT

POWER SUPPLY (120V-60HZ-10)

Fig. 15—Fan Coils with Printed-Circuit Control Board

A91489

EAC1

EAC2

SCREW TERMINAL

WIRENUT, FACTORY SUPPLIED

120-V FIELD WIRING

EAC1

EAC2

TO 240-V

ELECTRONIC AIR

CLEANER (WITH

240-V CONVERSION

KIT INSTALLED)

240:120-V
30 VA
TRANSFORMER

TO 120-V

ELECTRONIC

AIR CLEANER

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 ...

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