null
Skip to main content

Siemens RDF660MB, S55770-T439

£101.62
(No reviews yet) Write a Review
SKU:
RDF660MB
UPC:
4047625012540
Availability:
Usually ships within 4-5 working days.
Shipping:
Calculated at Checkout
Adding to cart… The item has been added

Siemens RDF660MB, S55770-T439

Flush-mount room thermostat for round and square conduit boxes with LCD for fan coil units and compressors

  • Modbus communications
  • For heating and/or cooling applications
  • 2 or 3-position control outputs
  • ECM fan output
  • 2 multifunctional inputs for 1) keycard contact / window contact (DI) 2) heat / cool changeover (AI & DI)
  • Operating modes: Comfort, Economy and Protection
  • Automatic or manual heating/cooling changeover
  • Adjustable commissioning and control parameters
  • Minimum and maximum setpoint limitation
  • Color of housing: signal white (RAL 9003)
  • Backlit display



Application selectable:

  • 2-pipe system
  • 4-pipe system

HS CODE: 90321020

COO: China