Beta Draft Confidential
Installing and Wiring the Thermostat
Proliphix Internet Managed Thermostat (IMT) Installation Guide 11
Part No. 600-03100-000, Rev. 4
Configuring Auxiliary Relay and Sensors
Table 5 describes the Auxiliary Relay connectors.
Table 6 describes the sensor connectors.
Using the IMT Auxiliary Relays to Control External Devices
The IMT550 has two independent auxiliary relays that can be used to turn on or off
devices that are not normally controlled by the HVAC relays. Typical devices that can
be controlled using aux relays include, but are not limited to, the following:
Humidifiers/Dehumidifiers
Exhaust Fans
Internal Lighting
External Lighting
Pool/Spa Circulator Pumps
Electric Water Heaters
Table 5 Auxiliary Relay Connectors
Auxiliary Relay Description
NO1 Port 1 Auxiliary Relay Normally Open
NC1 Port 1 Auxiliary Relay Normally Closed
COM1 Port 1 Auxiliary Relay Common
NO2 Port 2 Auxiliary Relay Normally Open
NC2 Port 2 Auxiliary Relay Normally Closed
COM2 Port 2 Auxiliary Relay Common
Table 6 Sensor Connectors
Sensor Description
S1+ Port 1 Remote Sensor Positive
S1- Port 1 Remote Sensor Negative
S2+ Port 2 Remote Sensor Positive
S2- Port 2 Remote Sensor Negative
S3+ Port 3 Remote Sensor Positive
S3- Port 3 Remote Sensor Negative
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