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191VAN Evolution™ Extreme
Variable Speed Air Conditioner
with Puron Advance™ (R-454B) Refrigerant
2 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.
Table of contents
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
(LLS). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Step 7 - Make Piping Connections. . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Table 1 - Refrigerant Connections and Recommended Liquid and Va-
por Tube Diameters (in.). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Mechanical Line Set Connections . . . . . . . . . . . . . . . . . . . . . . . . 6
Install Liquid-Line Filter Drier - Indoor . . . . . . . . . . . . . . . . . . . . 6
Refrigerant Tubing Connection - Outdoor . . . . . . . . . . . . . . . . . . 6
Sweat Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Pressure Test Tubing And Indoor Coil . . . . . . . . . . . . . . . . . . . . . 6
Evacuate Refrigerant Tubing and Indoor Coil . . . . . . . . . . . . . . . 6
Mandatory Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Pressure Proof Check . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Leak Check . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Final Tubing Check . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Step 8 - 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 9 - Compressor Stator Heat . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Step 10 - Install Accessories . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Step 11 - Start-Up & Charging. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Table 2 - Environment Type Guideline . . . . . . . . . . . . . . . . . . . . . . 9
Table 3 - Standard Subcooling Values. . . . . . . . . . . . . . . . . . . . . . . 9
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 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Table 5 - Minimum Room Area Charging Table. . . . . . . . . . . . . . 12
Step 12 - Pumpdown & Evacuation . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Step 13 - System Functions and Major Components . . . . . . . . . . . . . 14
Primary Control Module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Utility Interface With Evolution™ Connex™ Control. . . . . . . . 15
Evolution™ Green Communications (COMM) Light. . . . . . . . 15
Installation Instructions
PAGE NO.
Amber Status Light. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
5x7 LED Matrix . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
VFD Communications Light . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Bluetooth® Module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Variable Frequency Drive (VFD). . . . . . . . . . . . . . . . . . . . . . . . 16
Table 6 - VFD LED Indicator Functions . . . . . . . . . . . . . . . . . . . . 16
Input Filter Board . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Reactors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Variable Speed Compressor . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Time Delays . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Variable Speed Fan Motor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Pressure Equalization Valve (PEV) . . . . . . . . . . . . . . . . . . . . . . 17
High Pressure Switch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Outdoor Pressure Transducers . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Stator Heat Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Systems Communication Failure . . . . . . . . . . . . . . . . . . . . . . . . 17
Model Plug . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Table 7 - Model Plug Information . . . . . . . . . . . . . . . . . . . . . . . . . 17
Pressure Switch Protection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Compressor Protection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Line Voltage Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Forced Defrost Pins . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Temperature Thermistors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Table 8 - 10K Thermistor Resistance Values . . . . . . . . . . . . . . . . 18
Table 9 - 50K Thermistor Resistance Values . . . . . . . . . . . . . . . . 18
Outdoor Suction Temperature (OST) . . . . . . . . . . . . . . . . . . . . . 18
Outdoor Air Temperature (OAT) . . . . . . . . . . . . . . . . . . . . . . . . 18
Outdoor Coil / Liquid Line Temperature (LLT-AC) . . . . . . . . . 19
Outdoor Discharge Line Temperature (ODT) . . . . . . . . . . . . . . 19
Failed Thermistor Default Operation . . . . . . . . . . . . . . . . . . . . . 19
Variable Speed Compressor Winding Resistance . . . . . . . . . . . 19
Table 10 - Variable Speed Compressor Resistances
(winding resistance at 68°F) (20°F) . . . . . . . . . . . . . . . . . . . . . . . . 19
Fan Motor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Status Codes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
Status Code Recall Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
Table 11 - Diagnostic Code Table . . . . . . . . . . . . . . . . . . . . . . . . . 20
Table 12 - Malfunction Lockout Durations . . . . . . . . . . . . . . . . . . 21
FINAL CHECKS. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
REPAIRING REFRIGERANT CIRCUIT. . . . . . . . . . . . . . . . . . . 21
CARE AND MAINTENANCE. . . . . . . . . . . . . . . . . . . . . . . . . . . 21
PAGE NO.
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Summary of Contents for Bryant Evolution Extreme 191VAN
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Page 1: Table Of Contents
191VAN Evolution™ Extreme Variable Speed Air Conditioner with Puron Advance™ (R-454B) Refrigerant 2 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 2: Safety Considerations
191VAN Evolution™ Extreme Variable Speed Air Conditioner: 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: General
191VAN Evolution™ Extreme Variable Speed Air Conditioner: Installation Instructions General CAUTION Acronyms used in this publication EQUIPMENT DAMAGE HAZARD Acronym Primary Control Module Failure to follow this caution may result in equipment damage. Variable Frequency Drive If proper lineset routing techniques are not followed, variable speed Discharge Pressure Transducer systems can be susceptible to lineset transmitted noise inside the Suction Pressure Transducer... -
Page 4: Step 1 - Check Equipment And Job Site
191VAN Evolution™ Extreme Variable Speed Air Conditioner: Installation Instructions Step 1 – Check Equipment and Job Site Elevate unit per local climate and code requirements to provide clearance above estimated snowfall level and ensure adequate drainage Unpack Unit of unit. Move to final location. -
Page 5: Step 7 - Make Piping Connections
191VAN Evolution™ Extreme Variable Speed Air Conditioner: Installation Instructions CAUTION UNIT DAMAGE HAZARD Failure to follow this caution may result in equipment damage or improper operation. Do not leave system open to atmosphere any longer than minimum required for installation. PVE oil in compressor is extremely susceptible to moisture absorption. -
Page 6: Outdoor Unit Connected To Factory-Approved Indoor Unit
191VAN Evolution™ Extreme Variable Speed Air Conditioner: Installation Instructions Outdoor Unit Connected to Factory-Approved Indoor WARNING Unit When outdoor unit is connected to factory-approved R-454B indoor FIRE HAZARD unit, the outdoor unit contains correct system refrigerant charge for operation with smallest internal volume factory-approved, AHRI-rated Failure to follow this warning could result in personal injury, death indoor unit when connected by 15 ft. -
Page 7: Mandatory Requirements
191VAN Evolution™ Extreme Variable Speed Air Conditioner: Installation Instructions Be sure field wiring complies with local and national fire, safety, and electrical codes, and voltage to system is within limits shown on unit rating plate. Contact local power company for correction of improper voltage. -
Page 8: General Information
Failure to follow this warning could result in personal injury or death. wind baffle etc., are available on other Bryant units can also be used on Do not use power tools to open and close service valves. -
Page 9: Setup For Evolution™ Control Furnace Or Fe Fan Coil (Communicating)
191VAN Evolution™ Extreme Variable Speed Air Conditioner: Installation Instructions Table 2 – Environment Type Guideline Average Annual Relative Humidity (%) Type <45 Arid 45 - 65 Semi-Arid Humid NOTE: Evolution™ Connex™ 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 191VAN Evolution™ Extreme Variable Speed Air Conditioner: Installation Instructions 6. For new installations, select "new ODU (factory pre-charged)" from the refrigerant charge screen to begin charging the system (Fig. 14). For applications where there is no charge in the ODU, select “full system charge/recharge”.
- Page 11 191VAN Evolution™ Extreme Variable Speed Air Conditioner: Installation Instructions 8. The next screen, “cooling charge mode start” is shown in Fig. 17 subcooling is high. Tolerance should be ±1°F. It is recommended to Fig. 18 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...
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Page 12: Check Charge - Cooling / Heating
191VAN Evolution™ Extreme Variable Speed Air Conditioner: Installation Instructions Check Charge - Cooling / Heating Post Charging Final charge should be recored on the outdoor unit charging label with The check charge workflow allows a user to operate the system at fixed, permanent and legible writing. -
Page 13: Step 12 - Pumpdown & Evacuation
191VAN Evolution™ Extreme Variable Speed Air Conditioner: Installation Instructions Step 12 – Pumpdown & Evacuation Because this system has a VFD controlled compressor the conventional procedure cannot be used to "pumpdown" and isolate the refrigerant into the outdoor unit. The Evolution™ Connex™ System Control has provisions to assist in performing this function. -
Page 14: Step 13 - System Functions And Major Components
191VAN Evolution™ Extreme Variable Speed Air Conditioner: Installation Instructions Step 13 – System Functions and Major Components Primary Control Module The Primary Control Module (PCM) controls the various functions of The 191VAN models utilize an Evolution™ Connex™ System Control. When a demand for cooling exists, the Evolution™ Connex™ System the outdoor unit. -
Page 15: Utility Interface With Evolution™ Connex™ Control
191VAN Evolution™ Extreme Variable Speed Air Conditioner: Installation Instructions Utility Interface With Evolution™ Connex™ Control Evolution™ Green Communications (COMM) Light The utility curtailment relay should be wired between the two UTIL A green LED (COMM light) on the outdoor board (see Fig. -
Page 16: Amber Status Light
Green 1. Download the app from PCM. – Search the App Store™ or Google Play™ for Bryant Service On when VFD is in normal status. It is off Green Technician to download. The app is available on phone and tablet when VFD is fault status. -
Page 17: Input Filter Board
191VAN Evolution™ Extreme Variable Speed Air Conditioner: Installation Instructions P2 inputs on the PCM. Each transducer may be connected to either WARNING PCM input. These transducers have a range from 0 to 620 psig and are used for system protection, control, and diagnostics. Stator Heat Operation ELECTRICAL HAZARD - HIGH VOLTAGE Failure to follow this warning could result in personal injury or death. -
Page 18: Pressure Switch Protection
191VAN Evolution™ Extreme Variable Speed Air Conditioner: Installation Instructions Temperature Thermistors CAUTION Thermistors are used to sense the outdoor ambient (OAT), liquid line (LLT-AC), outdoor suction (OST), and outdoor discharge (ODT) line EQUIPMENT DAMAGE HAZARD temperatures. All thermistors are 10K thermistors except for the ODT, which is a 50k thermistor. -
Page 19: Outdoor Coil / Liquid Line Temperature (Llt-Ac)
191VAN Evolution™ Extreme Variable Speed Air Conditioner: Installation Instructions WARNING CAUTION PERSONAL INJURY AND/OR PROPERTY DAMAGE EQUIPMENT DAMAGE HAZARD HAZARD Failure to follow this caution may result in equipment damage and/or improper operation. Failure to follow this warning could result in personal injury and/or In order to minimize the ambient influence, make sure the thermistor property damage. -
Page 20: Status Codes
191VAN Evolution™ Extreme Variable Speed Air Conditioner: Installation Instructions Status Codes EXAMPLE: 3 short flashes followed by 2 long flashes indicates a 32 code. Table 11 Table 11 shows the status codes flashed by the amber status light. Most shows this to be low pressure switch open. system problems can be diagnosed by reading the status code as flashed Status Code Recall Mode by the amber status light on the control board. -
Page 21: Final Checks
191VAN Evolution™ Extreme Variable Speed Air Conditioner: 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 64-41 EXV-H Phase Open Duration of Event... -
Page 22: Puron Advance™ (R-454B) Refrigerant - Quick Reference Guide
The Bluetooth® word mark and logos are registered trademarks owned by Bluetooth SIG, Inc. and any use of such marks by Bryant is under license. Other trademarks and trade names are those of their respective owners Edition Date: 08/24 ©...
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