
2
TABLE OF CONTENTS
OVERVIEW / NSF® TYPE / COMPLIANCE / WARNINGS / PRECAUTIONS / WIRING……………….
INSTALLATION …………………………………………………………………………………………..……..
LOWER FRONT PANEL GRILLE REMOVAL (WITH HOOKS & SLOTS) ………………………….…..
LOWER LOUVERED FRONT PANEL REMOVAL (SCREW REMOVAL) ……………………………....
CASE START-UP: ACCESS TO TEMP. CONTROLLER / MAIN POWER / REFRIGERATION
PACKAGE SLIDE-OUT ………………………………….……...………………....…………….…...
CASE START-UP: HONEYCOMB AIR DIFFUSER DISCHARGE ………………………………………..
CONDENSATE PAN ACCESS (FROM CASE REAR) …………………………………………………….
TXV VALVE & COVER / DRAIN & DRAIN ACCESS COVER / “P-TRAP” / EVAPORATOR
FAN & COILS …………………………………………………………………………………………..
LED LIGHT FIXTURES: ROCKER SWITCH / LED LIGHT ‘TOUCH SENSOR’ LOCATION AND
OPERATION ..…………………………………………………………………………………………..
LED LIGHT FIXTURES: REMOVAL AND REPLACEMENT ..………...………………………………….
LED LIGHT FIXTURES, CONT’D: ‘PLUG-IN’ INSTRUCTIONS ………………………………………….
CONDENSATE PAN ACCESS / REFRIGERATION PACKAGE LAYOUT FOR CDR4287,
CDR4287A AND B427WND …...……………………………………………………………………..
REFRIGERATION PACKAGE LAYOUT FOR MODEL B428WN ….……………………………………..
REFRIGERATION PACKAGE LAYOUT & ACCESS FOR MODEL B427WN ……………………….....
CLEANING SCHEDULE - TO BE PERFORMED BY STORE PERSONNEL …….……………………..
PREVENTIVE MAINTENANCE (PERFORMED BY TRAINED SERVICE PROVIDER) ……..………...
TROUBLESHOOTING - GENERAL ISSUES …….………………….…………….……….…...………….
TROUBLESHOOTING - CONDENSING SYSTEM …..……………..…………….……….………………..
TROUBLESHOOTING - EVAPORATOR SYSTEM …..…………..……………….……….……………….
SERIAL LABEL INFORMATION & LOCATION …………………………………………………………...
CAREL® CONTROLLER - PROGRAMMING THE INSTRUMENT ..…………………………….……....
CAREL® CONTROLLER - USER INTERFACE, SUMMARY TABLES OF ALARMS & SIGNALS …
CAREL® CONTROLLER - Summary Table of Operating Parameters (After Programming Key) ..
TECHNICAL SERVICE CONTACT INFORMATION & WARRANTY INFORMATION ..……………….
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19-20
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Models Represented In This Manual*
W3R / W4R / CDR4287 / CDR4287A / B427WN / B427WND / B427WNDD / B428WN
* This Manual May Cover Additional Models That May Not Be Listed Above.