Control Output Opto-Isolator Legend:

iCOM Controls Training and Service Manual

Note: Use Pin 5 on the input opto-isolator with reference to the V- terminal for voltage check. The voltage level is 5 VDC.

Control Output Opto-Isolator Legend:

Opto

Purpose

Opto

Purpose

U1

Reheat 1

U10

Compressor 2

 

 

 

 

U2

Reheat 2

U11

Econ-O-Cycle Relay (R5)

U3

Reheat 3

U12

Liquid Line Solenoid 1

 

 

 

 

U4

Humidifier

U13

Hot Gas Bypass 2

U5

Main Fan

U14

Compressor 1

 

 

 

 

U8

Liquid Line Solenoid 2

U17

CW Actuator

U9

Hot Gas Bypass 2

U18

CW Actuator Close

 

 

 

 

Note: Use Pin 4 on the output opto-isolator with reference to the correct transformer neutral/ ground. The voltage level is 24 VAC.

Control Output Triac Legend:

Opto

Purpose

Opto

Purpose

Q1

Reheat 1

Q10

Compressor 2

 

 

 

 

Q2

Reheat 2

Q11

Econ-O-Cycle Relay (R5)

Q3

Reheat 3

Q12

Liquid Line Solenoid 1

 

 

 

 

Q4

Humidifier

Q13

Hot Gas Bypass 2

Q5

Main Fan

Q14

Compressor 1

 

 

 

 

Q8

Liquid Line Solenoid 2

Q17

CW Actuator

Q9

Hot Gas Bypass 2

Q18

CW Actuator Close

 

 

 

 

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Liebert TM-10098 service manual Control Output Opto-IsolatorLegend, Control Output Triac Legend, Purpose