User Guide

14 © Copyright 2007 TAC All Rights Reserved. F-15479-8
Typical Actuators: MP-465, MP-475, MP-485, MP-486, MP-495, MP-2130-500,
MP-2150-500, MP5-2151-500, MP5-4651, MP5-4751, MP-4851, and MP5-4851.
Typical TAC Microtherm Controllers: PP-22x Series, TP-2xx Series, TP-3xx
Series, TP-4xx Series, and TP-101x Series.
Standard Wiring:
C=Common of Switch to R and B.
1 =Feedback from actuator (24 Vac with actuator full CCW to 12 Vac at CW end).
R =Closes on temperature (pressure) drop and drives the actuator CCW (opens valve).
B =Closes on temperature (pressure) rise and drives the actuator CW (closes valve).
Typical Cooling TAC Microtherm: TP-1031.
C =Common of switch to R and B.
1 =Feedback from actuator (24 Vac with actuator full CCW to 12 Vac at CW end).
R =Closes on temperature rise and drives the actuator CCW (opens valve).
B =Closes on temperature drop and drives the actuator CW (closes valve).
Figure-9 External Wiring of TAC Microtherm Controller with Line Voltage
Actuator – Standard Wiring.
Typical Actuators: MP-465, MP-475, MP-485, MP-486, MP-495, MP-2130-500,
MP-2150-500, MP5-2151-500, MP5-4651, MP5-4751, MP-4851, and MP5-4851.
Typical TAC Microtherm Controllers: PP-22x Series, TP-2xx Series, TP-3xx
Series, TP-4xx Series, and TP-101x Series.
Reversed Wiring:
C =Common of switch to R and B.
1 =Feedback from actuator (12 Vac with actuator full CCW to 24 Vac at CW end).
R =Closes on temperature (pressure) drop and drives the actuator CW (closes valve).
B =Closes on temperature (pressure) rise and drives the actuator CCW (opens valve).
Figure-10 External Wiring of TAC Microtherm Controller with Line Voltage
Actuator – Reversed (Cooling) Wiring.
4
5
6 7
3
8
2
L1
1
L2
X
Green Wire
To AC
Power Supply
Case
Ground Screw
C
2
R
1
B
Blue
Red
Actuator
Transformer
Leads
4 5
6 7
3
8
2
L1
1
L2
X
Green Wire
To AC
Power Supply
Case
Ground Screw
C
2
R
1
B
Red
Blue
NOTE: Actuator
Transformer Leads
Must Be Reversed