iWorx® SMZ1
505-048-2, Effective: March 10, 2015
13
© 2015 Taco Electronic Solutions, Inc.
Figure 6: SMZ1 - Two Global Zones and Two Independent Zones - 5 Wire Sensor - Power Isolated
Connecting Input Devices
Snow Melt Sensor 1 (SMS1)
This input uses a snowmelt sensor (individual zone snowmelt mode set as “Zone Sense” or “Zone Sense With Idle”). To
connect the snowmelt sensor, attach one wire to the SMS1 (T19) and the other to the associated COM (T18).
Slab 1 Temperature (ST1)
This input uses a Precon III thermistor in the slab. To connect a thermistor, attach one wire to the ST1 (T17) input and
the other the adjacent COM (T18).
Snow Melt Sensor 2 (SMS2)
This input uses a snowmelt sensor (individual zone snowmelt mode set as “Zone Sense” or “Zone Sense With Idle”). To
connect the snowmelt sensor, attach one wire to the SMS2 (T16) and the other to the associated COM (T15).
