Carrier 39CQ Series - Table of Contents

Contents
ĉ Safety Notice…………………………………………………………………………………………… 1
Ċ Introduction of Control System for Air Handling Units ……………………………………………… 2
1. General introduction ……………………………………………………………………………… 2
2. AHU operation mode ……………………………………………………………………………… 2
ċ Introduction of Control components…………………………………………………………………… 3
1. Control board: SE-serial single digital controller ………………………………………………… 3
2. Extension board …………………………………………………………………………………… 4
3. Sensors……………………………………………………………………………………………… 5
(1) Duct temperature and humidity sensor ………………………………………………………… 5
(2) Indoor temperature and humidity sensor ……………………………………………………… 7
(3) CO2 sensor …………………………………………………………………………………… 9
(4) Water valve and damper actuator…………………………………………………………… 11
Č Human-computer Interface of AHU control system…………………………………………………… 12
1. Feature …………………………………………………………………………………………… 12
2. Instructions to use HMI …………………………………………………………………………… 12
čFailure diagnosis andsolution ………………………………………………………………………… 16
Appendix: Wiring Diagram ……………………………………………………………………………… 17