Bryant EVOLUTION EXTREME 280ANV User Manual

280ANV EVOLUTION
R
EXTREME
VARIABLE SPEED HEAT PUMP
WITH PURONr REFRIGERANT
(2 -- 5 Ton)
Installation Instructions
NOTE: Read the entire instruction manual before starting the installation.
TABLE OF CONTENTS
PAGE NO.
SAFETY CONSIDERATIONS 2...................................................................
INSTALLATION RECOMMENDATIONS 3........................................................
INSTALLATION 3--11...........................................................................
Step 1 — Check Equipment and Jobsite 4...........................................................
Step 2 — Install on Solid Pad 4...................................................................
Step 3 — Clearance Requirements 4...............................................................
Step 4 — Operating Ambient 4...................................................................
Step 5 — Elevate Unit 4........................................................................
Step 6 — Liquid Line Solenoid Valve (LSV) 4.......................................................
Step 7 — Making Piping Connections 5--6..........................................................
Step 8 — Make Electrical Connections 7...........................................................
Step 9 — Compressor Crankcase Heater 7..........................................................
Step 10 — Install Accessories 8...................................................................
Step 11 — Start--Up 8..........................................................................
Step 12 — System Functions and Sequence of Operation 8--10...........................................
Step 13 — Check Charge 10--11...................................................................
Step 14 — Pumpdown & Evacuation 11............................................................
MAJOR COMPONENTS 12..........................................................................
TROUBLESHOOTING 12--17..........................................................................
FINAL CHECKS 18.................................................................................
CARE AND MAINTENANCE 18......................................................................
PURONr REFRIGERANT QUICK REFERENCE GUIDE 18..............................................

Bryant EVOLUTION EXTREME 280ANV Specifications

General

Brand	Bryant
Model	EVOLUTION EXTREME 280ANV
Category	Heat Pump
Language	English

Summary

Safety Considerations

Electrical Shock Hazard

Warning about electrical shock during installation and service.

Unit Operation and Safety Hazard

Hazards related to unit operation, including refrigerant pressure.

Cut Hazard

Caution regarding sharp edges on sheet metal parts.

Installation Procedures

Installation Recommendations

Guidelines for optimal unit placement and installation practices.

Site Preparation and Unit Placement

Covers checking equipment, site, clearances, and unit positioning.

Piping and Electrical Connections

Procedures for making refrigerant and electrical connections.

System Startup and Operation

Steps for system startup, functions, and sequence of operation.

Refrigerant Charge and Evacuation

Procedures for checking charge, pumpdown, and evacuation.

Major Components Overview

Variable Speed Control Board

Details on the functions and operation of the HP control board.

Inverter and Motor Control Drive

Explanation of the inverter's role in controlling the compressor.

Electronic Expansion Valve (EXV)

Function of the EXV for refrigerant metering.

Troubleshooting and Diagnostics

Systems Communication Failure

Troubleshooting steps for communication loss between system components.

Pressure Switch Protection

How high and low-pressure switches affect unit operation.

Temperature Thermistors

Function and failure modes of temperature sensors.

Status Codes

Interpretation of amber LED flashes for diagnosing faults.

Final Checks, Maintenance, and Quick Reference

Final Checks

Final checks before leaving the jobsite for proper installation.

Care and Maintenance

Importance of regular maintenance for performance and reliability.

Puron Refrigerant Guide

Key precautions for working with Puron refrigerant.