STTRFSN V2 Room Thermostat

  • Mechanical Frost thermostat
  • Suitable for combi boilers: Yes
  • Temperature range: -5°—15°C
  • Contact rating: 10(3) Amperes


Frost Thermostat

The Tower STTRFSN is a dial-type mechanical frost protection thermostat. With neutral housing to blend in to any style decor. Designed for wall mounting, with 60mm fixing centres for back-box compatibility, and suitable for in-wall or surface-run wiring connection. The thermostat cover incorporates four breakouts for surface-run conduit. The temperature regulation mechanism is the well-proven sealed bellows sys-tem. Install in parallel to the room thermostat in a cool area of the property, to protect the property, heating system and boiler against the risk of damage from frost.

Temperature range: -5°—15°C
Differential: 1°C
Contact rating: 10(3) Amperes
Contact type: Volt-free changeover
System compatibility: Mains (230V AC) or low-voltage
Suitable for combi boilers: Yes

Product Code: STTRFSN (V2)

STTRFSN V2 Frost Protection Thermostat Spec


STT Range Installation Guide