Control Output Opto-Isolator And Triac Legend - Emerson Liebert iCOM Training And Service Manual

iCOM
Controls Training and Service Manual

Control Output Opto-Isolator and Triac Legend:

Opto
Note: Use Pin 4 on the output opto-isolator with reference to the correct
transformer neutral/ground. The voltage level is 24 VAC.
* Note:
CUV1 or 2: Cylinder Unloader Valve 1 or 2.
DSV1 or 2: Digital Scroll Valve 1 or 2.
Triac
U1 Q1 Reheat 1
U2 Q2 Reheat 2
U3 Q3 Reheat 3
U4 Q4 Humidifier
U5 Q5 Main Fan
U6 Q6 Humidifier Makeup Valve
U8 Q7 Liquid Line Solenoid 2
U9 Q9 CUV2 or DSV2 *
U10 Q10 Compressor 2
U12 Q12 Liquid Line Solenoid 1
U13 Q13 CUV1 or DSV1 *
U14 Q14 Compressor 1
U15 Q15 Not Used
U17 Q17 CW Actuator
U18 Q18 CW Actuator Close
154
Purpose