Siemens RDG260T Room Thermostat for Fan Coil Units

The Siemens RDG260T is a programmable room thermostat designed for fan coil unit (FCU) applications, replacing the discontinued RDG160T (S55770-T343). It supports 3-speed and ECM fan control, universal HVAC applications, and heat pump systems, with a built-in 7-day time switch for flexible scheduling.

• Brand: Siemens
• Model: RDG260T
• Replaces: RDG160T / S55770-T343
• Supply Voltage: AC 24 V
• Application: Fan coil units (3-speed or ECM fan), heat pump, universal HVAC
• Output: DC 0–10 V or ON/OFF
• Time Switch: 7-day programmable
• Use: Commercial and residential HVAC control

The RDG260T is a direct replacement for the RDG160T and is fully compatible with Siemens HVAC control systems. Suitable for new installations and upgrade projects.