York MILLENIUM SIMPLICITY ELITE Series User Manual

351579-YTS-B-0608
2 Johnson Controls Unitary Products
TABLE OF CONTENTS
MILLENNIUM® 25-40 TON SINGLE PACKAGE
COMMERCIAL ROOFTOP UNIT EQUIPPED WITH
SIMPLICITY® CONTROLS . . . . . . . . . . . . . . . . . . . . 1
RECOMMENDED TECHNICAL AND
INSTALLATION AIDS . . . . . . . . . . . . . . . . . . . . . . . . 1
THE MILLENNIUM® SIMPLICITY® CONTROL . . . . 3
INTRODUCTION AND OVERVIEW . . . . . . . . . . . . . . . . . 3
DIGITAL LINGO . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
ANALOG TO DIGITAL CONVERTER . . . . . . . . . . . . . . . 4
COMMUNICATIONS BUS . . . . . . . . . . . . . . . . . . . . . . . . 5
OPTIONAL MODLINC TRANSLATOR. . . . . . . . . . . . . . . 5
COMPONENT DESCRIPTION. . . . . . . . . . . . . . . . . . . . . 5
SIMPLICITY® PROGRAMMING OPTIONS . . . . . . . 11
INTERACTING THROUGH THE MILLENNIUM®
SIMPLICITY® . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
INITIAL STARTUP OPTIONS . . . . . . . . . . . . . . . . . . . . 11
METRIC OPERATION (ENGLISH) . . . . . . . . . . . . . . . . 11
SETTABLE SYSTEM PARAMETERS . . . . . . . . . . . 11
MILLENNIUM® SEQUENCE OF OPERATION . . . . 18
OVERVIEW . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
RUN SEQUENCE. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
UNIT CONTROLS SEQUENCE . . . . . . . . . . . . . . . . . . . 18
VARIABLE AIR VOLUME UNIT (VFD & IGV) . . . . . . . . 20
OCCUPIED / UNOCCUPIED / MORNING WARM-UP . 21
UNIT CONTROLS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
HEAD PRESSURE CONTROL . . . . . . . . . . . . . . . . . . . 26
SEQUENCE OF OPERATION - FOR HEAD PRESSURE
CONTROL. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
INTELLI-START . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
DEVICES AND RULES . . . . . . . . . . . . . . . . . . . . . . . . . 27
COMFORT VENTILATION MODE . . . . . . . . . . . . . . . . . 28
HYDRONIC HEAT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
COOLING LOCKOUT ON OAT . . . . . . . . . . . . . . . . . . . 29
WATER COIL FREEZE STAT (FSI). . . . . . . . . . . . . . . . 29
CV OPERATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
THERMOSTAT OPERATION FOR COOLING WITH Y1,
Y2, Y3 AND Y4 INPUTS . . . . . . . . . . . . . . . . . . . . . . . . 30
OPERATION FOR HEATING WITH W1, W2, AND W3
INPUTS. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
SENSOR OPERATION . . . . . . . . . . . . . . . . . . . . . . . . . 30
TYPES OF SPACE SENSORS . . . . . . . . . . . . . . . . . . . 31
VAV OPERATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
SUPPLY DUCT PRESSURE CONTROL ALGORITHM. 34
MORNING WARM UP / VAV OCCUPIED HEATING
CONTROL ALGORITHM . . . . . . . . . . . . . . . . . . . . . . . 34
CONTROLLING EXCESSIVE SAT (SUPPLY AIR
TEMPERATURE) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .35
SAT SETPOINTS USED DURING COOLING WITH
ECONOMIZER OPERATION . . . . . . . . . . . . . . . . . . . . .36
DEMAND VENTILATION . . . . . . . . . . . . . . . . . . . . . . . . .39
EXHAUST OPERATION . . . . . . . . . . . . . . . . . . . . . . . . .40
SCHEDULING OPERATION . . . . . . . . . . . . . . . . . . . . . .41
COMPRESSOR STATUS MONITORING . . . . . . . . . . . .41
TROUBLESHOOTING A MILLENNIUM®
SIMPLICITY® CONTROL . . . . . . . . . . . . . . . . . . . . 43
STATUS LED CHART . . . . . . . . . . . . . . . . . . . . . . . . . . .43
FAILURE MODES AND DEFAULT OPERATION . . . . . .43
SENSOR FAILURES AND DEFAULT OPERATION . . . .43
SYSTEM ERRORS . . . . . . . . . . . . . . . . . . . . . . . . . . . . .44
LIST OF FIGURES
Fig. # Pg. #
1 SIMPLICITY® CONTROLLER . . . . . . . . . . . . . . . . . . . 3
2 SIMPLICITY® CONTROLS PUSH BUTTONS . . . . . . 3
3 ANALOG TO DIGITAL CONVERTER . . . . . . . . . . . . . 4
4 VFD CONTROL WIRING . . . . . . . . . . . . . . . . . . . . . . . 8
5 SEQUENCE OF SETTING THE SET POINTS . . . . . 14
6 COMFORT VENTILATION ECONOMIZER
CONTROL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .28
7 SAT CONTROL BAND . . . . . . . . . . . . . . . . . . . . . . . 34
LIST OF TABLES
Tbl. # Pg. #
1 ACRONYMS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
2 INPUT SIGNAL TO Y1 ACTUATOR POSITION . . . . . 8
3 SIMPLICITY® CONTROL INPUTS . . . . . . . . . . . . . . . 9
4 SIMPLICITY® CONTROL OUTPUTS . . . . . . . . . . . . 10
5 SETTABLE SYSTEM PARAMETERS . . . . . . . . . . . . 16
6 COOLING STAGE . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
7 IGNITION CONTROL BOARD FLASH CODES . . . . 23
8 MODULATING GAS HEAT . . . . . . . . . . . . . . . . . . . . 24
9 MODULATING GAS HEAT CONTROL BOARD FLASH
CODES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .25
10 COMPRESSOR MINIMUM OFF TIMES . . . . . . . . . . 30
11 WEEKLY SCHEDULE . . . . . . . . . . . . . . . . . . . . . . . . 34
12 HOLIDAY SCHEDULE. . . . . . . . . . . . . . . . . . . . . . . . 35
13 ALARM DEFAULT CODES . . . . . . . . . . . . . . . . . . . . 42
14 STATUS LED CHART . . . . . . . . . . . . . . . . . . . . . . . . 43

York MILLENIUM SIMPLICITY ELITE Series Specifications

General

Brand	York
Model	MILLENIUM SIMPLICITY ELITE Series
Category	Air Conditioner
Language	English