The button is alternately turned and
pressed to choose periods with econ-
omy set-back and periods with com-
fort temperature respectively.
The programming switches between
low (economy set-back) and high
(comfort) temperature every time you
press the button.
And between every time you press,
you can turn the button and choose
the period of time.
12
Summary of Contents for devireg 540
Page 1: ...User Instruction devireg 540 550 GB DAS...
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Page 20: ...29 Connection diagram Network connection devireg 550 ONLY...
Page 37: ...DO NOT over tighten 12...
Page 43: ...Remove the frame from the thermostat Frame 6...
Page 44: ...Remove the two screws one in each side and gently pull off the display module Screws 5...
Page 47: ......