Specifications

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Figure 26: Temperature Sensor Wiring to MicroTech
III Controller (669088101)
2-Way Motorized Isolation Valve
Figure 27: 2-Way Motorized Isolation Valve
Used in variable pumping type applications, the valve
is typically piped in the return water line. On a call
for heating or cooling, the valve will open prior to the
compressor starting. The 24VAC valve actuator must be
wired directly to terminal block H8 on the MicroTech III
controller.Seegure22onpage22forwiringdetails.
The valve is rated for 300 psig (2070 kPa).
Figure 28: Normally Closed, Power Open Motorized
Valve
Figure 24: MicroTech
®
III Wall Sensor Details
.
Specifications
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 25: Temperature Sensor Wiring to MicroTech
III Controller (668900801, 669088201)
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"
Temperature
Sensor Terminals
MicroTech III Unit
Controller TB1 Terminals
MicroTech III Unit
Controller TB1 Terminals
Temperature
Sensor Terminals