SAMOD (Stand Alone Modulation Damper Control) is a DDC auto changeover thermostat that is designed to control a fully modulating stand alone supply damper or diffuser. This product is manufactured by Zonex System and is equipped with an accurate duct sensor to facilitate changeover. SAMOD is used in standalone damper applications where independent damper control is required without cycling control of the HVAC equipment. Here is the terminal function diagram of SAMOD auto changeover thermostat that consists of R: 24V ac power input, C: 24V ac power common, RO: damper run open signal, RC: damper run closed signal, MC: 24V motor common, duct temperature sensor 5 VDC common, duct temperature sensor 5 VDC positive, line voltage, damper motor.
Terminal Functions Diagram of SAMOD DDC Auto Changeover Thermostat
May 30, 2011 by Leave a Comment