Carrier Infinity 24ANB7- Manuals

Page 2 - INSTALLATION; CUT HAZARD; CAUTION; Check Equipment and Job Site; Inspect Equipment; Install on a Solid, Level Mounting Pad; NOTE; Clearance Requirements

2 The outdoor unit contains system refrigerant charge for operationwith AHRI rated indoor unit when connected by 15 ft. (4.57 m) of field--supplied or factory accessory tubing. For proper unitoperation, check refrigerant charge using charging information located on control box cover and/or in the Ch...

Page 3 - Make Piping Connections; Outdoor Unit Connected to Factory Approved Indoor; WARNING; Refrigerant Tubing Connection Outdoor

3 Table 1 – Accessory Usage Accessory Required for Low Ambient Cooling Applications Utilizing 2 --- Stage Thermostat on 17 SEER Models Only (Below 55° F / 12.8° C) Required for Low Ambient Cooling Applications Utilizing UI (Below 55° F / 12.8° C) Required for Long Line Applications* Required for Sea...

Page 4 - Sweat Connection; Evacuate Refrigerant Tubing and Indoor Coil; Deep Vacuum Method; Final Tubing Check; Make Electrical Connections; Route Ground and Power Wires

4 Sweat Connection CAUTION ! UNIT DAMAGE HAZARD Failure to follow this caution may result in equipment damage or improper operation.Service valves must be wrapped in a heat--sinking material such as a wet cloth while brazing. Use refrigeration grade tubing. Service valves are closed fromfactory and ...

Page 5 - Connect Ground and Power Wires; Connect Control Wiring; Final Wiring Check; IMPORTANT; Compressor Crankcase Heater

5 Connect Ground and Power Wires Connect ground wire to ground connection in control box for safety. Connect power wiring to contactor as shown in Fig. 6. DISCONNECTPER N. E. C. AND/ORLOCAL CODES CONTACTOR GROUNDLUG FIELD GROUND WIRING FIELD POWER WIRING A91056 Fig. 6 -- Line Connections Connect Con...

Page 6 - SYSTEM FUNCTIONS AND SEQUENCE; Communication and Status Function Lights; For Infinity Control Only, Green communications; Compressor Operation

6 Start--Up CAUTION ! UNIT OPERATION AND SAFETY HAZARD Failure to follow this caution may result in personal injury, equipment damage or improper operation. S Do not overcharge system with refrigerant. S Do not operate unit in a vacuum or at negative pressure. S Compressor dome temperatures may be h...

Page 7 - Table 3 – Outdoor Fan Motor PWM; Time Delays

7 Table 3 – Outdoor Fan Motor PWM Outdoor Temp (DC volts, Tolerance +/-- 2%) Model Low Stage (OAT  104 _ F/40 _ C) High Stage (OAT  104 _ F/40 _ C) Low & High Stage (OAT  104 _ F/40 _ C) 24ANB124 9.57 10.88 11.90 24ANB136 9.06 10.23 11.90 24ANB148 9.91 11.04 11.90 24ANB160 10.83 11.70 11.90 N...

Page 8 - Check Charge; Final Checks; CARE AND MAINTENANCE

8 Check Charge Models 24ANB7 / 24ANB1 should be charged in high stagecompressor operation. Factory charge amount and desired subcooling are shown on unit rating plate. Charging method is shown on information plate inside unit. To properly check or adjustcharge, conditions must be favorable for subco...

Page 9 - TROUBLESHOOTING; Table 4 – Winding Resistance; Systems Communication Failure; Table 5 – Model Plug; Pressure Switch Protection; 30 V Brown Out Protection Defeated:

9 TROUBLESHOOTING If the compressor fails to operate with a cooling call, Table 4 can beused to verify if there is any damage to the compressor windings causing system malfunction. Table 4 – Winding Resistance Winding Winding resistance at 70 _ F +/ --- 20 _ F (21.11 _ C +/ --- 11.11 _ C) 24ANB724 /...

Page 10 - MAJOR COMPONENTS

10 Compressor Voltage Sensing The control board input terminals labeled VS and L2 (see Fig. 7)are used to detect compressor voltage status, and alert the user of potential problems. The control continuously monitors the high voltage on the run capacitor of the compressor motor. Voltageshould be pres...

Page 11 - TEMPERATURE THERMISTORS; Thermistor Sensor Comparison; OAT Thermistor must be locked in place with spherical nib end; Status Codes; EXAMPLE; THERMISTOR CURVE

11 TEMPERATURE THERMISTORS Thermistors are electronic devices which sense temperature. As thetemperature increases, the resistance decreases. Thermistors are used to sense outdoor ambient (OAT) and coil temperature (OCT).Refer to Fig. 8 for resistance values versus temperature. If the outdoor ambien...

Page 12 - Table 6 – Troubleshooting; OPERATION

12 Table 6 – Troubleshooting OPERATION FAULT AMBER LED FLASH CODE POSSIBLE CAUSE AND ACTION Standby – no call for unit operation None On solid, no flash Normal operation Low Stage Cool/Heat Operation None 1, pause Normal operation High Stage Cool/Heat Operation None 2, pause Normal operation Brown o...

Carrier Infinity 24ANB7- Manuals

Manuals:

User Manual Carrier Infinity 24ANB7

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Carrier Manuals