Opentherm Gateway with Ferroli Aquasol Sun Boiler system - protocol and connetion issues.
Question: who has any info about the Ferroli Aquasol(4) and a connection to OTGW ?
I have an Ferroli Aquasol 4 with a sunpanel PV-size from HR-Solar. Avery good combination.
I want to read the status of the sunboiler system using the OTGW; using just a monitor function. I have no thermostat connected.
Ferroli documentation:
The system is capable of "speaking" OT (which seems to be standard at AgpoFerroli.
When connected to th AgpoTherm PLus is should be able to show OT 25 (Boiler water temp), 27 (Outside air temp) , 29 (Solar Storage Temp).
OTGW: I use the NODO OTGW with Wifi and I have updated all SW to 5.1 (the complete SW stack as advised by otgw.tclcode.com).
All OTGW commands seem to work but I get 0, nothing from the boiler.
I have added (AA command) the three messages 25,27,29.
When in Monitor mode nothing happens, in GW mode I see the 1-second request on my oscilloscope coming; but no response whatsoever from the boiler.
The power on the boiler output is 17,1V (=); the GW message is about 1,2V.
Test5 response on Voltage levels is Themostat (but not connected) 2.95 Boiler=0, Reference voltage 1.21. Test 6 : nothing, nada, no esponse.