Specifications

IM 1060-3 / Page 23 of 32
Figure 25: Temperature Sensor Wiring to MicroTech III
Unit Controller (669529001)
MicroTech III Unit Con-
troller TB1 Terminals
Temperature
Sensor Terminals
2-Way Motorized Isolation Valve
Figure 26: 2-Way Motorized Isolation Valve
Used in variable pumping type applications, the valve ac-
tuator is wired and typically piped in the return water line.
The 2-way motorized water valve kit includes the valve body,
actuator and wire harness. The 24VAC valve actuator must
be wired directly to terminal block H8 on the MicroTech III
controller. See Figure 28 on page 24 for wiring details. The
valve will only energize on a call for heating or cooling. The
1-1/4" valve is rated for 300 psig (2068 kPa and the 1-1/2"
valve is rated for 150 psig (1034 kPa).
Figure 27: Normally Closed, Power Open Motorized Valve
.
Figure 23: MicroTech® III Wall Sensor Details
Fan Control
Slide Switch
Mode Control
Slide Switch
Status LED
(Green)
0 to 10 K ohm
Potentiometer
Tenant Override
Momentary Push Button Switch
4.59"
Specications
Thermistorresistance(10kΩ)
(Conforms to advance thermal products curve 2)
Ambient Temperature Limits:
Shipping and Storage: 40°F to 160°F (–40°C to 71°C)
Operating: 40°F to 140°F (4°C to 60°C)
Humidity: 5 to 95% RH, non-condensing
Locations: NEMA Type 1, Indoor only
Connections: Color Coded Leads
Wiring Sensors to the MicroTech III
Controller
Figure 24: Temperature Sensor Wiring to MicroTech III
Unit Controller (Kit Part No.s 669529101, 669529201)
Temperature
Sensor Terminals
MicroTech III Unit Con-
troller TB1 Terminals