Advertisement
Quick Links
27VNA3 Infinity®
Variable Speed Heat Pump
with Greenspeed® Intelligence
and Puron Advance™ (R-454B) Refrigerant
3 to 5 Nominal Tons
NOTE: Read the entire instruction manual before starting the installation.
Unit MUST be installed with rated R-454B indoor with factory approved dissipation control board installed.
SAFETY CONSIDERATIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
VFD Cover . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Step 1 – Check Equipment and Job Site . . . . . . . . . . . . . . . . . . . . . . . . 4
Unpack Unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Inspect Equipment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Step 2 – Install on a Solid, Level Mounting Pad . . . . . . . . . . . . . . . . . 4
Step 3 – Clearance Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Step 4 – Operating Ambient . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Step 5 – Elevate Unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Step 6 – Make Piping Connections. . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Table 1 – Refrigerant Connections and Recommended Liquid and Va-
por Tube Diameters (in.). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Outdoor Unit Connected to Factory-Approved
R-454B Indoor Unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Mechanical Line Set Connections . . . . . . . . . . . . . . . . . . . . . . . . 5
Install Liquid-Line Filter Drier - Indoor . . . . . . . . . . . . . . . . . . . . 6
Refrigerant Tubing Connection - Outdoor . . . . . . . . . . . . . . . . . . 6
No Installation of Adapter Tube . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Sweat Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Pressure Test Tubing and Indoor Coil . . . . . . . . . . . . . . . . . . . . . 6
Evacuate Refrigerant Tubing and Indoor Coil . . . . . . . . . . . . . . . 6
Deep Vacuum Method . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Mandatory Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Pressure Proof Check . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Leak Check . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Final Tubing Check . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Step 7 – Make Electrical Connections . . . . . . . . . . . . . . . . . . . . . . . . . 7
Route Ground and Power Wires . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Connect Ground and Power Wires . . . . . . . . . . . . . . . . . . . . . . . . 7
Connect Control Wiring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
General Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Final Wiring Check. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Step 8 – Compressor Stator Heat . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Step 9 – Install Accessories . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Step 10 – Start-Up & Charging. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Table 2 – Environment Type Guideline . . . . . . . . . . . . . . . . . . . . . . 9
Table 3 – Standard Subcooling Values. . . . . . . . . . . . . . . . . . . . . . . 9
Setup for Infinity® Control
Furnace or FE Fan Coil (communicating) . . . . . . . . . . . . . . . . . . . . 9
Follow these steps to properly start up the system . . . . . . . . . . . . 9
Table 4 – Required Liquid Line Temperature for R-454B . . . . . . . 11
Check Charge - Cooling / Heating . . . . . . . . . . . . . . . . . . . . . . . 12
Post Charging . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Table 5 – Minimum Room Area Charging Table. . . . . . . . . . . . . . 13
Step 11 – Pump Down & Evacuation . . . . . . . . . . . . . . . . . . . . . . . . . 13
Evacuation and Recovery of Refrigerant from within 27VNA3 14
Step 12 – System Functions and Major Components . . . . . . . . . . . . . 15
Primary Control Module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Installation Instructions
PAGE NO.
Utility Interface With Infinity® Control . . . . . . . . . . . . . . . . . . 16
Infinity® Control, Green Communications (COMM) Light . . . 16
Amber Status Light. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
5x7 LED Matrix . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
VFD Communications Light . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Bluetooth® Module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Variable Frequency Drive (VFD). . . . . . . . . . . . . . . . . . . . . . . . 17
Table 6 – VFD LED Indicator Functions . . . . . . . . . . . . . . . . . . . . 17
Input Filter Board . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Reactors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Variable Speed Compressor . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Time Delays . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Heating Electronic Expansion Valve (EXV-H) . . . . . . . . . . . . . 18
Vapor Injection Electronic Expansion Valve (EXV-VI) . . . . . . 18
Variable Speed Fan Motor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Pressure Equalization Valve (PEV) . . . . . . . . . . . . . . . . . . . . . . 18
High Pressure Switch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Outdoor Pressure Transducers . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Stator Heater Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Infinity® Controlled Low Ambient Cooling . . . . . . . . . . . . . . . 18
Defrost . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Systems Communication Failure . . . . . . . . . . . . . . . . . . . . . . . . 19
Model Plug . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Table 7 – Model Plug Information . . . . . . . . . . . . . . . . . . . . . . . . . 19
Pressure Switch Protection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Compressor Protection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Line Voltage Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Forced Defrost Pins . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Temperature Thermistors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Table 8 – 10K Thermistor Resistance Values . . . . . . . . . . . . . . . . 19
Table 9 – 50K Thermistor Resistance Values . . . . . . . . . . . . . . . . 19
Outdoor Air Temperature (OAT) . . . . . . . . . . . . . . . . . . . . . . . . 19
Outdoor Coil Temperature (OCT-HP) . . . . . . . . . . . . . . . . . . . . 20
Liquid Line Temperature (LLT-HP) . . . . . . . . . . . . . . . . . . . . . 20
Outdoor Suction Temperature (OST) . . . . . . . . . . . . . . . . . . . . . 20
Outdoor Discharge Line Temperature (ODT) . . . . . . . . . . . . . . 20
Failed Thermistor Default Operation . . . . . . . . . . . . . . . . . . . . . 21
Variable Speed Compressor Winding Resistance . . . . . . . . . . . 21
Table 10 – Variable Speed Compressor Resistances
winding resistance at 68°F (20°F) . . . . . . . . . . . . . . . . . . . . . . . . . 21
Fan Motor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Status Codes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Status Code Recall Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Table 11 – Diagnostic Code Table . . . . . . . . . . . . . . . . . . . . . . . . . 22
Table 12 – Malfunction Lockout Durations . . . . . . . . . . . . . . . . . . 23
FINAL CHECKS. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
REPAIRING REFRIGERANT CIRCUIT. . . . . . . . . . . . . . . . . . . 24
CARE AND MAINTENANCE. . . . . . . . . . . . . . . . . . . . . . . . . . . 24
Puron Advance™ (R-454B) Refrigerant — Quick Reference Guide 25
PAGE NO.
Advertisement
Related Manuals for Carrier Infinity 27VNA3
Summary of Contents for Carrier Infinity 27VNA3
- Page 1 27VNA3 Infinity® Variable Speed Heat Pump with Greenspeed® Intelligence and Puron Advance™ (R-454B) Refrigerant 3 to 5 Nominal Tons Installation Instructions NOTE: Read the entire instruction manual before starting the installation. Unit MUST be installed with rated R-454B indoor with factory approved dissipation control board installed. PAGE NO.
- Page 2 27VNA3 Infinity® Variable Speed Heat Pump: Installation Instructions SAFETY CONSIDERATIONS WARNING This appliance shall only be installed by EPA qualified personnel and have Section 608 Technician Certification. This appliance is not ELECTRICAL SHOCK HAZARD intended for use by persons (including children) with reduced physical, Failure to follow this warning could result in personal injury or death.
- Page 3 LIQUID TUBE Outdoor Air Temperature Pressure Equalization Valve EXV-VI Vapor Injection Electronic Expansion Valve Reversing Valve Carrier Communication Network EXV-H Heating Electronic Expansion Valve SUCTION TUBE NOTE: In some cases noise in the living area has been traced to gas INSULATION pulsations from improper installation of equipment.
- Page 4 27VNA3 Infinity® Variable Speed Heat Pump: Installation Instructions Step 1 – Check Equipment and Job Site Roof mounted units exposed to winds above 5 mph may require wind baffles. Consult the Service Manual - Residential Split System Air Unpack Unit Conditioners and Heat Pumps Using Puron Advance™...
- Page 5 27VNA3 Infinity® Variable Speed Heat Pump: Installation Instructions Step 6 – Make Piping Connections CAUTION WARNING UNIT DAMAGE HAZARD PERSONAL INJURY AND ENVIRONMENTAL Failure to follow this caution may result in equipment damage or improper operation. HAZARD If ANY refrigerant tubing is buried, provide a 6 in. (152.4 mm) vertical Failure to follow this warning could result in personal injury or death.
- Page 6 27VNA3 Infinity® Variable Speed Heat Pump: Installation Instructions Install Liquid-Line Filter Drier - Indoor Sweat Connections Refer to Fig. 5 and install filter drier as follows: on 36 and 48 size CAUTION models 1. Braze 5-in. (127 mm) liquid tube to the indoor coil. UNIT DAMAGE HAZARD 2.
- Page 7 27VNA3 Infinity® Variable Speed Heat Pump: Installation Instructions Step 7 – Make Electrical Connections Refrigerant tubes and indoor coil should be evacuated using the recommended deep vacuum method of 500 microns. The alternate triple Be sure field wiring complies with local and national fire, safety, and evacuation method may be used.
- Page 8 WARNING accessories such as the support feet, snow rack, wind baffle etc., are available on other Carrier units can also be used on this line of product. PERSONAL INJURY HAZARD Refer to the individual Installation Instructions packaged with kits or accessories when installing.
- Page 9 27VNA3 Infinity® Variable Speed Heat Pump: Installation Instructions Table 2 – Environment Type Guideline Average Annual Relative Humidity (%) Type <45 Arid 45 - 65 Semi-Arid Humid NOTE: Infinity® System Control indicates acceptable conditions for subcool charging mode. Do not use subcooling charge method if outside 65°F (18°C) and 105°F(40.6°C) outdoor temperature.
- Page 10 27VNA3 Infinity® Variable Speed Heat Pump: Installation Instructions A240344 Fig. 12 – Equipment Summary Screen A240370 Fig. 15 – Refrigerant Charge Mode Selection NOTE: A leak dissipation board must be present for the Infinity® 7. If indoor and outdoor conditions are in range, subcooling status will System Control to allow unit operation.
- Page 11 27VNA3 Infinity® Variable Speed Heat Pump: Installation Instructions 8. The next screen, “cooling charge mode start” is shown in Fig. 18 subcooling is high. Tolerance should be ±1°F. It is recommended to Fig. 19 depending on whether subcooling charging is available. The validate the subcooling using traditional methods of measuring reason for unavailability of subcooling can be viewed by pressing temperature and pressure at the liquid service valve when charging...
- Page 12 27VNA3 Infinity® Variable Speed Heat Pump: Installation Instructions Check Charge - Cooling / Heating The check charge work flow allows a user to operate the system at fixed, charge mode operating parameters in either heating or cooling modes. In cooling this can be used to evaluate subcooling using the sensors on the unit.
- Page 13 27VNA3 Infinity® Variable Speed Heat Pump: Installation Instructions Step 11 – Pump Down & Evacuation Because this system has a VFD controlled compressor the conventional procedure cannot be used to “pump down” and isolate the refrigerant into the outdoor unit. The Infinity® System Control has provisions to assist in performing this function.
- Page 14 27VNA3 Infinity® Variable Speed Heat Pump: Installation Instructions A20042 Fig. 28 – Evacuation Setup Screen A240390 Fig. 26 – Pump Down Setup Screen A20043 A240342 Fig. 29 – Evacuation Status Screen Fig. 27 – Pump Down Active Screen Evacuation and Recovery of Refrigerant from within 27VNA3 Because this system has an EXV for the heating expansion device, additional steps must be taken to open the EXV if the heat pump unit...
- Page 15 27VNA3 Infinity® Variable Speed Heat Pump: Installation Instructions Step 12 – System Functions and Major Components Primary Control Module The Primary Control Module (PCM) controls the various functions of The 27VNA3 models utilize a communicating Infinity® System Control. When a demand for cooling or heating exists, the Infinity® the outdoor unit.
- Page 16 27VNA3 Infinity® Variable Speed Heat Pump: Installation Instructions Utility Interface With Infinity® Control Infinity® Control, Green Communications (COMM) Light The utility curtailment relay should be wired between the two UTIL connections on the control board for this Infinity® Communicating A green LED (COMM light) on the outdoor board (see Fig.
- Page 17 1. Download the app Green from PCM. – Search the App Store™ or Google Play™ for Carrier Service On when VFD is in normal status. It is off Technician to download. The app is available on phone and tablet Green when VFD is fault status.
- Page 18 27VNA3 Infinity® Variable Speed Heat Pump: Installation Instructions Pressure Equalization Valve (PEV) WARNING The PEV is located at the discharge of the compressor and the inlet to the accumulator. The purpose of the PEV is to prevent the compressor from ELECTRICAL HAZARD - HIGH VOLTAGE starting with a high pressure differential, which can cause compressor Failure to follow this warning could result in personal injury or death.
- Page 19 27VNA3 Infinity® Variable Speed Heat Pump: Installation Instructions Troubleshooting Line Voltage Diagnostics The primary control module monitors the line voltage for low and high Systems Communication Failure voltage events. If a low voltage or high voltage event occurs and another If communication with the Infinity®...
- Page 20 27VNA3 Infinity® Variable Speed Heat Pump: Installation Instructions Liquid Line Temperature (LLT-HP) The LLT-HP is a 10K thermistor used for multiple system operations. LLT-HP is connected to the PCM through a separate 3-pin connector and provides to the primary control module and Infinity® System Control. It is used for heating control and subcooling calculation during charging.
- Page 21 27VNA3 Infinity® Variable Speed Heat Pump: Installation Instructions Failed Thermistor Default Operation Status Codes Factory defaults have been provided in the event of failure of any of the Table 11 shows the status codes flashed by the amber status light. Most system problems can be diagnosed by reading the status code as flashed thermistors.
- Page 22 27VNA3 Infinity® Variable Speed Heat Pump: Installation Instructions Table 11 – Diagnostic Code Table Manufacturer reserves the right to change, at any time, specifications and designs without notice and without obligations.
- Page 23 27VNA3 Infinity® Variable Speed Heat Pump: Installation Instructions Table 12 – Malfunction Lockout Durations (Continued) Table 12 – Malfunction Lockout Durations Code Title Time Code Title Time 61-41 Reversing Valve Solenoid Open Duration of Event 13-53 System Control Upgrade Required Permanent 61-53 Reversing Valve Timeout Malfunction 2 hours...
- Page 24 27VNA3 Infinity® Variable Speed Heat Pump: Installation Instructions FINAL CHECKS CARE AND MAINTENANCE IMPORTANT: Before leaving job, be sure to do the following: For continuing high performance and to minimize possible equipment failure, periodic maintenance must be performed on this equipment. 1.
- Page 25 The Bluetooth® word mark and logos are registered trademarks owned by Bluetooth SIG, Inc. and any use of such marks by Carrier Corporation is under license. Other trademarks and trade names are those of their respective owners. Manufacturer reserves the right to change, at any time, specifications and designs without notice and without obligations.
- Page 26 27VNA3 Infinity® Variable Speed Heat Pump: Installation Instructions Edition Date: 08/24 ©2024 Carrier Corp. All rights reserved. Catalog No:27VNA3-1SI Replaces: NewNew Manufacturer reserves the right to change, at any time, specifications and designs without notice and without obligations.
Need help?
Do you have a question about the Infinity 27VNA3 and is the answer not in the manual?
Questions and answers