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Old 10-01-2010, 02:34 AM   #1
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Digital Thermostat to control exhaust fan


I've procured a digital thermostat that i'd like to use to activate a 240Vac ceiling exhaust fan at a given temperature.
The Manual for the Thermo states;
Features:
  • 3 high speed air blowers.
  • Motorised valve with electrically operated wind valve.
  • Cotrol ventilation, cooling, warming.
Tech. specs:
  • Supply voltage 220VAC+/- 10%
  • Relay electronic contact 3A 240VAC
  • Output 200W
...and the wiring diagram shows its 6 terminals labled; N, HI, MID, LOW, VALVE, L.

Now for my questions;
  • do the high, mid, low, fan settings correspond to different speeds for a single fan or to switching for 3 individual fans?
  • Could this thermostat be used to activate and vary the speed of a speed variable ceiling fan? (if so, how would it be wired to this unit?)
...sorry but i don't know how to include the actual wiring diagram in this thread. Perhaps the info I've given you guys might be enough, otherwise the actual diagram can be downloaded at http://downloads.villageorigin.com/001480-144/

To anyone who might shed some light ... my thanks!

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