Issue: 4

||= Version =||= MinHW =||= Date =||= Done by =||= Reason =||
||1.00 || ||2018/07/18 ||gavin.mutch || First Major Release ||
||1.01 || ||2018/08/01 ||gavin.mutch || Fixed change-over heating/cooling bug ||
||1.02 || ||2018/08/02 ||gavin.mutch || Added support for setpoint/sense temperature sharing between Fan Coils via Loop Number ||
||1.04 || ||02/08/2018 ||gavin.mutch || Found the previous bug was not fully fixed. Fixed an issue where OFF had highest priority, but showed up as overriden when an input was triggered. ||
||1.05 || ||07/08/2018 ||gavin.mutch || Included SDO 48 (Occupancy override) for Christo. ||
||1.06 || ||29/11/2018 ||christo.malan || Fix loop jumping ||
||1.07 || ||09/02/2019 ||christo.malan || Add rundown timer, keep fan on if heater was on. Fix Manual Fan and Auto valve mode. ||
||1.20 || ||18/06/2020 ||christo.malan ||**Major Update:** Minimum Wallstat Version is **8.08 ** \\Add new valve modes 2-10V and 6 way valve \\Use change over for both valves. Fix heater, only switch on after the hot valve opened. \\**Add Multi Zone control:** Use average diffuser temperature and setpoint and control fan speed based on average diffuser disk. Minimum diffuser wallstat version is 4.19 for Multi Zone||
||1.21 || ||21/08/2020 ||christo.malan || fix valve change over operation [[BR]]  Keep heater off if not in use [[BR]]Implement heater minimum Off time (if switched off keep it off for minimum of 15s) ||
||1.22 || ||14/09/2020 ||christo.malan || Fix fan speed sdo, use fan % and not step[[BR]]fix 1s timeout for inputs, move code to interrupt[[BR]]fix demo temp not updated in pdo[[BR]]Always update fan speed in Mulitzone mode[[BR]]fix fan rundown, reload as long as mode is not off fix fan max ||
||1.23 || ||29/09/2020 ||christo.malan || Add, Calculate EC fan speed from diffusers[[BR]]if temperature is < 0.5C, no sensor, switch off heater[[BR]]fix use fanspeed for Aux and OCC mode[[BR]]add fallback mode for noDiffusers and noMaster[[BR]]remove compiler warnings[[BR]]detect that an other device is polling and reset[[BR]]Fix, only set noDiffuer if Multi Zone is enabled ||
|| 1.24 || || 13/10/2020 || christo.malan || **Recalled** Fix network startup timing. \\Prevent unoccupied mode from switching the unit on. ||
|| 1.25 || || 02/11/2020 || christo.malan || Fix overflow in diffuser control fan speed \\Fix min fan speed for PI output of 0% \\Load PI settings during upgrade set to defaults and if 0. ||
|| 1.26 || || 06/11/2020 || christo.malan || Remove "fix network startup timing" added in V1.24. Fixed with diffuser wallstat version 4.19. ||