Carrier Infinity 24ANB7 User Manual download pdf

24ANB7

24ANB1

Infinityr 2---Stage Air Condit io ner wit h

Puronr Refrigerant

2 --- 5 To n s ( S i z e s 2 4 --- 6 0 )

Installation Instructions

SAFETY CONSIDERATIONS

Improper installation, adjustment, alteration, service, maintenance,

or use can cause explosion, fire, electrical shock, or other

conditions which may cause death, 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, protective clothing,

and work gloves. Use quenching cloth for brazing operations.

Have fire extinguisher available. Read these instructions

thoroughly and follow all warnings or cautions included in

literature and attached to the unit. Consult local building codes and

current editions of the National Electrical Code ( NEC ) NFPA 70.

In Canada, refer to current editions of the Canadian electrical code

CSA 22.1.

Recognize safety information. This is the safety--alert symbol

When you see this symbol on the unit and in instructions or

manuals, be alert to the potential for personal injury. Understand

these 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 hazards 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

which will result in enhanced installation, reliability, or operation.

WARNING

ELECTRICAL SHOCK HAZARD

Failure to follow this warning could result in personal injury

or death.

Before installing, modifying, or servicing system, main

electrical disconnect switch must be in the OFF position and

install a lockout tag. There may be more than 1 disconnect

switch. Lock out and tag switch with a suitable warning label.

EXPLOSION HAZARD

Failure to follow this warning could

result in death, serious personal injury,

and/or property damage.

Never use air or gases containing

oxygen for leak testing or operating

refrigerant compressors. Pressurized

mixtures of air or gases containing

oxygen can lead to an explosion.

WARNING

Indoor Thermostat Control Options

Model

InfinityR

Control

Standard

2 --- s t a g e

Thermostat

24ANB7/24ANB1 Yes Yes

INSTALLATION RECOMMENDATIONS

NOTE: In some cases noise in the living area has been traced to

gas pulsations from improper installation of equipment.

1. Locate unit away from windows, patios, decks, etc. where

unit operation sound may disturb customer.

2. Ensure that vapor and liquid tube diameters are appropriate

for unit capacity.

3. Run refrigerant tubes as directly as possible by avoiding un-

necessary turns and bends.

4. Leave some slack between structure and unit to absorb vi-

bration.

5. When passing refrigerant tubes through the wall, seal open-

ing with RTV or other pliable silicon--based caulk. (See Fig.

1.)

6. Avoid direct tubing contact with water pipes, duct work,

floor joists, wall studs, floors, and walls.

7. Do not suspend refrigerant tubing from joists and studs with

a rigid wire or strap which comes in direct contact with

tubing.(See Fig. 1.)

8. Ensure that tubing insulation is pliable and completely sur-

rounds vapor tube.

9. When necessary, use hanger straps which are 1 in. (25.4

mm) wide and conform to shape of tubing insulation. (See

Fig. 1.)

10. Isolate hanger straps from insulation by using metal sleeves

bent to conform to shape of insulation.

INSULATION

VAPOR TUBE

LIQUID TUBE

OUTDOOR WALL

INDOOR WALL

LIQUID TUBE

VAPOR TUBE

INSULATION

CAULK

Avoid contact between tubing and structureNOTE:

THROUGH THE WALL

HANGER STRAP

(AROUND VAPORTUBE ONLY)

JOIST

1” (25.4 mm) MIN.

SUSPENSION

A94026

Fig. 1 -- Piping Installation

1 2 3 4 5 6 ... 13 14

Summary of Contents

Page 1 - Installation Instructions

24ANB724ANB1Infinityr 2---Stage Air Condit io ner wit hPuronr Refrigerant2 --- 5 To n s ( S i z e s 2 4 --- 6 0 )Installation InstructionsSAFETY CONSI

Page 2 - INSTALLATION

10Compressor Voltage SensingThe control board input terminals labeled VS and L2 (see Fig. 7)are used to detect compressor voltage status, and alert th

Page 3 - Make Piping Connections

11TEMPERATURE THERMISTORSThermistors are electronic devices which sense temperature. As thetemperature increases, the resistance decreases. Thermistor

Page 4 - Make Electrical Connections

12Table 6 – TroubleshootingOPERATIONFAULTAMBER LEDFLASHCODEPOSSIBLE CAUSE AND ACTIONStandby – no call for unit operation NoneOn solid, noflashNormal o

Page 5 - Connect Control Wiring

13T h e r m id is t a t M o de l s T 6 --- PR H 0 1 --- A & T 6 --- N R H 01 --- Aw/ VS Fan Coil & 2 ---Stage Air ConditionerT h e r m id is t

Page 6 - OF OPERATION

14PURONR (R--410A) REFRIGERANT QUICK REFERENCE GUIDES Puron refrigerant operates at 50--70 percent higher pressures than R--22. Be sure that servicing

Page 7 - A B C

2The outdoor unit contains system refrigerant charge for operationwith AHRI rated indoor unit when connected by 15 ft. (4.57 m) offield--supplied or f

Page 8 - CARE AND MAINTENANCE

3Table 1 – Accessory UsageAccessoryRequired forLow AmbientCooling ApplicationsUtilizing 2---StageThermostat on 17 SEERModels Only(Below 55° F / 12.8°

Page 9 - TROUBLESHOOTING

4Sweat ConnectionCAUTION!UNIT DAMAGE HAZARDFailure to follow this caution may result in equipmentdamage or improper operation.Service valves must be w

Page 10 - MAJOR COMPONENTS

5Connect Ground and Power WiresConnect ground wire to ground connection in control box forsafety. Connect power wiring to contactor as shown in Fig. 6

Page 11 - TEMPERATURE THERMISTORS

6Start--UpCAUTION!UNIT OPERATION AND SAFETY HAZARDFailure to follow this caution may result in personal injury,equipment damage or improper operation.

Page 12 - 24ANB7 / 24ANB1

7Table 3 – Outdoor Fan Motor PWMOutdoor Temp (DC volts, Tolerance +/-- 2%)ModelLow Stage(OAT104_F/40_C)High Stage(OAT104_F/40_C)Low & HighStage(

Page 13

8Check ChargeModels 24ANB7 / 24ANB1 should be charged in high stagecompressor operation. Factory charge amount and desiredsubcooling are shown on unit

Page 14 - Always Ask For

9TROUBLESHOOTINGIf the compressor fails to operate with a cooling call, Table 4 can beused to verify if there is any damage to the compressor windings

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Carrier Infinity 24ANB7 User Manual

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Summary of Contents

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