Installation and Operation Manual
●
Fan Coil Controller – EZstat
EC-EZstat
Date: 9-2014
Supersedes: NEW
Engineered Comfort reserves the right to change any information concerning product or specification without notice or obligation.
Page 2 of 36
CONTENTS
1
PREFACE ....................................................................................................................................3
2
SAFETY SYMBOLS & CONSIDERATIONS....................................................................................3
3
INTRODUCTION ........................................................................................................................3
3.1 FEATURES ................................................................................................................................. 3
3.2 USER FUNCTIONS .................................................................................................................... 3
3.3 SPECIFICATIONS ...................................................................................................................... 4
3.4 EZSTAT FEATURES .................................................................................................................... 6
4
INSTALLATION ...........................................................................................................................7
4.1 MOUNTING THE EZSTAT .........................................................................................................7
4.2 CONNECTING INPUTS ............................................................................................................. 8
4.3 CONNECTING OUTPUTS .........................................................................................................9
4.4 CONNECTING POWER ...........................................................................................................11
4.5 MAINTENANCE ...................................................................................................................... 11
5
USER
FUNCTIONS ...................................................................................................................12
5.1 OPERATING THE EZSTAT .......................................................................................................12
5.2 ENTERING USER OR ADMIN PASSWORD.............................................................................13
5.3 CHANGING THE ACTIVE SETPOINTS ....................................................................................13
5.4 SETTING THE OPERATING MODES .......................................................................................14
6
COMMISSIONING
FUNCTIONS ...............................................................................................15
6.1 CREATING AND/OR CHANGING PASSWORDS .....................................................................16
6.2 SETTING THE COMMISSIONING SETPOINTS ......................................................................17
6.3 SET UP THE COMMUNICATIONS ..........................................................................................18
6.4 SET THE TIME AND DATE ......................................................................................................19
6.5 SETTING THE OCCUPANCY SCHEDULE ................................................................................20
6.6 ENTER THE COMMISSIONING MODE ..................................................................................21
6.7 ADVANCED OPTIONS ............................................................................................................25
7
SEQUENCES OF OPERATION ...................................................................................................27
7.1 SETPOINT LIMITS .................................................................................................................. 27
7.2 OCCUPANCY ........................................................................................................................... 27
7.3 AUTOMATIC COOLING AND HEATING CHANGEOVER ........................................................28
7.4 SCHEDULING OCCUPANCY ...................................................................................................28
7.5 DISPLAY BLANKING AND BACKLIGHT ..................................................................................28
7.6 TEMPERATURE SENSING INPUTS .........................................................................................28
7.7 PID CONTROL LOOPS ............................................................................................................28
7.8 VALVE OPERATION FOR FAN COILS ......................................................................................28
7.9 FAN OPERATION FOR FAN COILS .........................................................................................29
7.10 ONE, TWO, AND THREE SPEED FANS ...................................................................................29
8
SYSTEM
INTEGRATION ...........................................................................................................30
8.1 BACNET OBJECTS .................................................................................................................. 30
8.2 CONNECTING TO MS/TP NETWORK ....................................................................................34
