Carrier Infinity 24VNA6 - Page 13

Carrier Infinity 24VNA6

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24VNA6: Installation Instructions

Manufacturer reserves the right to change, at any time, specifications and designs without notice and without obligations.

13

A200049

Fig. 26 – Variable Speed Control Board with optional Utility Relay

A200044

Fig. 27 – Primary Control Board

Status LED

(Yellow)

CCN Communication

LED (Green)

VFD LED (Red / Green)

VFD-PCM

Communication Port

Table of Contents

Table of Contents1
Safety Considerations2
- Inverter Cover2
Installation Recommendations2
Installation3
Step1 - Check Equipment and Job Site3
- Unpack Unit3
- Inspect Equipment3
Step2 - Install on a Solid, Level Mounting Pad3
Step3 - Clearance Requirements4
Step4 - Operating Ambient4
Step5 - Elevate Unit4
Step6 - in Long-Line Applications, Install Liquid-Line Solenoid Valve4
(Lsv)4
Step7 - Make Piping Connections4
- Outdoor Unit Connected to Factory-Approved Indoor Unit6
- Install Liquid-Line Filter Drier Indoor6
- Refrigerant Tubing Connection Outdoor6
- Sweat Connections6
- Evacuate Refrigerant Tubing and Indoor Coil6
- Deep Vacuum Method6
- Final Tubing Check7
Step8 - Make Electrical Connections7
- Route Ground and Power Wires7
- Connect Ground and Power Wires7
- Connect Control Wiring7
- General Information7
- Final Wiring Check7
Step9 - Compressor Crankcase Heater7
- Airflow Setup for Infinity Control Furnace or FE Fan Coil7
- Cating)7
Step11 - Start-Up & Charging8
- Follow These Steps to Properly Start up the System8
Step12 - Pumpdown & Evacuation11
- Evacuation and Recovery of Refrigerant from Within 24VNA611
Step13 - System Functions and Major Components12
- Primary Control Module12
- Utility Interface with Infinity Control12
- Infinity Control, Green Communications (COMM) Light12
- Amber Status Light14
- 5X7 LED Matrix14
- VFD Communications Light14
- Bluetooth® Module14
- Variable Frequency Drive (VFD)14
- Input Filter Board14
- Reactors14
- Variable Speed Compressor14
- Time Delays14
- Vapor Injection Electronic Expansion Valve (EXV-VI)14
- Outdoor Pressure Transducers15
- Crankcase Heater Operation15
- Infinity Controlled Low Ambient Cooling15
Troubleshooting15
- Systems Communication Failure15
- Model Plug15
- Pressure Switch Protection15
- Compressor Protection15
- Line Voltage Diagnostics15
- Forced Defrost Pins (J9)15
- Outdoor Air Thermistor16
- Outdoor Coil Thermistor16
- Discharge Thermistor (ODT)16
- Failed Thermistor Default Operation16
- Variable Speed Compressor Winding Resistance16
(Winding Resistance at 68°F? (20°F)16
- Fan Motor17
- Status Codes17
- Status Code Recall Mode17
- Emergency Mode Connections with a Conventional Thermostat1717
Final Checks21
Care and Maintenance21

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