In this example it is 20. 20 converted to 8 bits binary is 00010100. The 5 Relay states are 10100, so
Relay 5 Heat and Relay 3 High Fan are requested to be active. So the X47 is requesting that Relay 5
Heat and Relay 3 High Fan be energized.
3. Now lower the e7w target temperature to its lowest value to request the highest cooling demand. The
e7w most likely timed out of the PI5 parameter menu and you should be able to lower the target
temperature. You may need to wait for the X47 / HVAC controller to stabilize.
4. Access the e7w PI5 menu again, and view the value of Offset 12.
The value is 12. 12 converted to 8 bits binary is 00001100. The 5 Relay states are 01100, so Relay 4
Cool and Relay 3 High Fan are requested to be active.
So, the X47 seems to be correctly reacting to room target temperature changes and calling for the
correct Relay output states. You should investigate the actual HVAC unit or wiring between the X47
and HVAC unit to understand why it is not actually heating or cooling as requested.
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