Bryant Evolution 186CNV Series - User Manual

Service Manual
Table of contents
PAGE NO. PAGE NO.
UNIT IDENTIFICATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
SAFETY CONSIDERATIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
General information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
ELECTRICAL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Aluminum Wire . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
ELECTRICAL SYSTEM OVERVIEW . . . . . . . . . . . . . . . . . . . . 3
Terminal Block . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Transformer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Compressor / Fan Sub-System . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Variable Frequency Drive (VFD) . . . . . . . . . . . . . . . . . . . . . . . . 5
VFD Filter Board . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Reactors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
High Pressure Switch (HPS). . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Compressor Brushless Permanent Magnet Motor (BPM) . . . . . 5
VFD + Compressor BPM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Fan Brushless Permanent Magnet Motor (BPM) . . . . . . . . . . . . 5
VFD + Fan BPM. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Crankcase Heater . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
CONTROL SUB-SYSTEM. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Primary Control Module (PCM). . . . . . . . . . . . . . . . . . . . . . . . . 5
Control Connection (Communicating and Non-Communicating). 5
Communicating Evolution Control. . . . . . . . . . . . . . . . . . . . . . . 5
Non-Communicating Control . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Table 1 – DIP Swtich Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
PCM Indicators and Matrix Display . . . . . . . . . . . . . . . . . . . . . . 6
Model Plug . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Thermistors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Pressure Sensors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
VFD Control Connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Pressure Equalization Valve (PEV) . . . . . . . . . . . . . . . . . . . . . . 8
Reversing Valve (RVS) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Heating Electronic Expansion Valve (EXV-H) . . . . . . . . . . . . . 8
Bluetooth® Module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Accessory Control Components. . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Utility Curtailment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Liquid Line Solenoid Valve (LLS) . . . . . . . . . . . . . . . . . . . . . . . 8
CONTROL FEATURES AND OPERATION . . . . . . . . . . . . . . . . . . 9
Equipment Configuration (Model Plug) . . . . . . . . . . . . . . . . . . . . 9
Performance Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Compressor Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Compressor Protect Delay . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Starting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Running. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Compressor Reliability Protection . . . . . . . . . . . . . . . . . . . . . . . 9
Sump Heat. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Fan Operation . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . 9
Intermittent Low Fan Speed . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Fan Operating Exceptions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Cooling Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Heating Control. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Super Heat Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Defrost Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Defrost Interval. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Defrost Process . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
PCM Indicators and Display Operation. . . . . . . . . . . . . . . . . . . . 10
Status Light. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Comm Light . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
VFD Comm Light. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Matrix Display . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Reprogrammability . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
TROUBLESHOOTING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
TROUBLESHOOTING CONTROL FEATURES . . . . . . . . . . . 11
SYSTEM DIAGNOSTICS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Table 2 – Model Plug Information. . . . . . . . . . . . . . . . . . . . . . . . 12
COMPONENT DIAGNOSTICS . . . . . . . . . . . . . . . . . . . . . . . . . 12
Table 3 – Variable Speed Compressor Resistances (ohm)
(winding resistance at 68°F /20°C) . . . . . . . . . . . . . . . . . . . . . . . 12
Table 4 – DC Voltage and PWM Measurement . . . . . . . . . . . . . 13
Table 5 – Thermistor Resistance (k-ohms) vs. Temperature. . . . 13
DIAGNOSTIC CODES AND TROUBLESHOOTING . . . . . . . 15
Table 6 – Fault Code Table . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
REFRIGERATION SYSTEM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
Refrigerant . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
Compressor Oil . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
Servicing Systems on Roofs With Synthetic Materials. . . . . . . . 34
Synthetic Roof Precautionary Procedure . . . . . . . . . . . . . . . . . 34
Brazing. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
Service Valves and Pumpdown . . . . . . . . . . . . . . . . . . . . . . . . . . 34
Pumpdown & Evacuation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
Pump Down . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
Evacuation and Recovery of Refrigerant from 284ANV . . . . . 35
Reversing Valve (284ANV) . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
Liquid Line Filter Drier . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
Install Liquid-line Filter Drier Indoor. . . . . . . . . . . . . . . . . . . . 36
Suction Line Filter Drier . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
Thermostatic Expansion Valve (TXV) . . . . . . . . . . . . . . . . . . . . 36
TXV Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
Accumulator. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
Vapor Injection Operation (5 Ton Models) . . . . . . . . . . . . . . . . . 37
Vapor Injection Electronic Exp. Valve (EXV VI)
(5 Ton Models) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
REFRIGERATION SYSTEM REPAIR. . . . . . . . . . . . . . . . . . . . . . 38
Leak Detection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
Coil Removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
186CNV / 284ANV
Evolution™ Extreme
Variable Speed Air conditioner and Heat Pump
2 to 5 Nominal Tons

Summary

UNIT IDENTIFICATION AND SAFETY

Model and Serial Number Nomenclature

Describes the structure of the unit model and serial numbers.

General Safety Precautions and Hazards

Covers electrical, cut, and general unit operation safety warnings.

ELECTRICAL SYSTEM OVERVIEW

Electrical Shock and Aluminum Wire Safety

Warnings for electrical work and guidelines for aluminum wire.

Electrical System Components

Overview of terminal block, transformer, and sub-systems.

COMPRESSOR AND FAN SUB-SYSTEM

VFD Sub-System Diagram and Connections

Illustrates VFD components and wiring diagrams.

VARIABLE FREQUENCY DRIVE (VFD) SYSTEM

VFD Functionality and Components

Explains VFD, filter board, reactors, HPS, and motor types.

Crankcase Heater Operation

Details the function of the crankcase heater.

CONTROL SUB-SYSTEM

Primary Control Module (PCM) and Connections

PCM role, sensors, actuators, and control connection types.

PCM Indicators and Display Operation

Explains status lights, communication indicators, and matrix display.

EQUIPMENT COMPONENTS AND ACCESSORIES

Component Identification

Model plug, thermistors, pressure sensors, and valves.

Accessory Control Components

Utility curtailment and liquid line solenoid valve.

CONTROL FEATURES AND OPERATION

Configuration, Modes, and Compressor Operation

Model plug, performance modes, compressor start/run.

Fan, Cooling, Heating, and Defrost Control

Fan operation, temperature control, and defrost.

DEFROST OPERATION AND PCM INDICATORS

Defrost Interval and Process

Settings and steps for defrost cycles.

PCM Indicator and Display Functions

Status light, comm lights, matrix display, and reprogramming.

TROUBLESHOOTING CONTROL FEATURES

Diagnostics Display and Forced Defrost Input

How diagnostics are shown and forced defrost functions.

Diagnostic Code Recall Procedure

Steps to enter and use diagnostic code recall.

System Diagnostics Overview

24VAC power, communication loss, and model plug importance.

COMPONENT DIAGNOSTICS

Model Plug Info and Pressure Protection

Model plug table and high/low pressure protection.

Compressor and Fan Component Checks

Resistance checks for compressor and fan motor.

THERMISTOR DIAGNOSTICS

Thermistor Resistance Table and OAT;OCT Function

Resistance data and OAT/OCT sensor roles.

ODT Thermistor Function and Caution

Role and installation caution for ODT sensor.

SENSOR AND EXPANSION VALVE COMPONENTS

OST Thermistor and Pressure Sensor Functions

OST sensor role and pressure transducer details.

Electronic Expansion Valve (EXV) Description

Details EXV-H and EXV-VI connections.

DIAGNOSTIC CODES AND TROUBLESHOOTING

Bluetooth Communication and Line Voltage Faults

Troubleshooting 17-06, 14-94, 15-94.

Freeze Protection, PCM Power, and Model Plug Faults

Codes 18-11, 24-58, 25-22, 25-62.

MODEL PLUG, FUSE, AND PRESSURE FAULTS

Model Plug and System Mismatch Faults

Codes 25-24, 25-61, 25-63, 26-26, 26-27, 26-31.

Fuse and Compressor Pressure Faults

Codes 28-71, 28-72, 31-11, 31-16, 31-19.

COMPRESSOR AND FAN FAULTS

Compressor Pressure and Temperature Faults

Codes 32-15, 33-15, 34-11, 35-11, 36-15.

Compressor Start and Fan Motor Faults

Codes 38-13, 38-18, 39-13, 39-14, 39-15.

FAN, DEFROST, AND SENSOR FAULTS

Fan Shutdown and Motor Faults

Codes 39-53, 39-55, 39-58.

Defrost and PEV Timeout Faults

Codes 41-13, 44-13.

OAT Sensor Faults

Codes 51-01, 51-02.

SENSOR AND PRESSURE TRANSDUCER FAULTS

OCT and OST Sensor Faults

Codes 52-01, 52-02, 53-41, 53-42.

ODT Sensor and Pressure Transducer Faults

Codes 54-01, 54-02, 57-01, 58-01.

REFRIGERANT CONTROL VALVE FAULTS

RVS and PEV Solenoid Faults

Codes 61-41, 62-01.

EXV Valve Faults

Codes 64-41, 64-44, 64-45, 65-41, 65-44, 65-45.

VFD Control Relay Faults

Codes 66-41, 66-42.

VFD SYSTEM AND POWER FAULTS

VFD System Faults - PFC and PFCM

Codes 81-13, 81-53, 81-14, 81-54, 81-58.

VFD Current and Power Dropout Faults

Codes 82-11, 82-13, 82-53, 82-15, 82-55.

VFD VOLTAGE AND CURRENT LIMIT FAULTS

VFD Line Voltage Faults

Codes 82-16, 82-56, 82-17, 82-57.

VFD Compressor Current Faults

Codes 83-11 to 83-57.

VFD Overtemp and DC Voltage Faults

Codes 84-11, 84-58, 85-13, 85-53, 85-14, 85-54.

VFD INTERNAL AND COMMUNICATION FAULTS

VFD Communication and Initialization Faults

Codes 86-06, 86-46, 87-13, 87-53.

VFD Reset, Sensor, and Link Faults

Codes 88-15, 88-55, 88-31, 88-71, 88-33, 88-73.

VFD SENSOR AND DISCHARGE FAULTS

VFD PFCM Sensor and Discharge Faults

Codes 88-34, 88-74, 88-35, 88-75, 88-37, 88-38, 88-78.

FAULT CODE TABLE SUMMARY

Base Fault Codes

Overview of base fault codes 14 through 62.

Expansion Fault Codes

Overview of expansion fault codes 71 through 71.

FAULT CODE TABLE CONTINUED

Expansion Fault Codes

Overview of expansion fault codes 41 through 78.

REFRIGERATION SYSTEM OVERVIEW

Refrigerant Safety and Oil Handling

Precautions for Puron refrigerant and PVE oil.

Brazing Procedures and Roof Protection

Brazing basics and protection for synthetic roofing.

SERVICE VALVES AND PUMPDOWN

Service Valve Replacement and Pumpdown

Procedures for valve replacement and system pumpdown.

Reversing Valve Operation and Troubleshooting

How the reversing valve functions and its diagnosis.

REFRIGERANT LINE COMPONENTS

Liquid Line Filter Drier Installation

Instructions for installing filter driers.

TXV and Suction Line Filter Drier Information

Details on TXV and suction line filter driers.

TXV, ACCUMULATOR, AND VAPOR INJECTION

TXV Operation and Accumulator Function

How TXV and accumulator work.

Vapor Injection Operation (5 Ton Models)

Explanation of the vapor injection circuit.

REFRIGERATION SYSTEM REPAIR

Leak Detection Methods

Techniques for finding refrigerant leaks.

Coil Removal Procedure

Steps for removing coils for service.

Bryant Evolution 186CNV Series Specifications

General

Model	186CNV
Type	Heat Pump
SEER Rating	Up to 18
HSPF Rating	Up to 10
Refrigerant	R-410A
Stages	Variable
Cooling Capacity	2 to 5 tons
Cooling Capacity (BTU/h)	24000 to 60000
Heating Capacity (BTU/h)	24000 to 60000
Warranty	10-year limited parts warranty
Compressor Type	Variable-Speed