EngA C-TRAC3 User Manual

A C-TRAC3
3 of 21 Jan 13 R5
Table of Contents
INTRODUCTION ................................................................................................................................................................ 5
STARTUP AND SHUT DOWN ............................................................................................................................................. 5
SERVICE SWITCH ............................................................................................................................................................... 5
TEMPERATURE CONTROL ................................................................................................................................................. 6
BASE SETPOINT ................................................................................................................................................................. 6
SETPOINT RESET ............................................................................................................................................................... 6
SETPOINT LIMITS .............................................................................................................................................................. 6
MODES OF OPERATION .................................................................................................................................................... 6
SENSOR #2 ........................................................................................................................................................................ 7
MEASURING TEMPERATURE AND SETPOINT ................................................................................................................... 7
OPERATION ....................................................................................................................................................................... 7
AMBIENT SENSING ............................................................................................................................................................ 8
BLOWER CONTROL ........................................................................................................................................................... 8
ECONOMIZER MODE ........................................................................................................................................................ 8
MINIMUM POSITION ........................................................................................................................................................ 9
Ambient Compensation .................................................................................................................................................. 10
HEATING MODE .............................................................................................................................................................. 10
COOLING MODE .............................................................................................................................................................. 10
DUAL MODE .................................................................................................................................................................... 10
OCCUPIED/UNOCCUPIED ................................................................................................................................................ 11
INDICATION AND DIAGNOSTIC LIGHTS ........................................................................................................................... 11
LOW LIMIT ...................................................................................................................................................................... 13
VARIABLE AIR VOLUME .................................................................................................................................................. 13
WIRING ........................................................................................................................................................................... 14
EMS Wiring ..................................................................................................................................................................... 15
TROUBLE SHOOTING ...................................................................................................................................................... 15
BASIC (MULTIMETER) ..................................................................................................................................................... 15
DIP Switches (C-TRAC 3.2 and higher) ............................................................................................................................ 15
SIMULATING A HEAT/COOL CALL ................................................................................................................................... 16
ENCHANCED (COMPUTER) ............................................................................................................................................. 16
Calibration ...................................................................................................................................................................... 17
SENSOR TABLES .............................................................................................................................................................. 18
SERVICE NOTES ............................................................................................................................................................... 19

EngA C-TRAC3 Specifications

General

Brand	EngA
Model	C-TRAC3
Category	Controller
Language	English