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HT-25 OpenTherm Wifi Programmable Thermostat Tuya / Smartlife

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Description

A programmable thermostat

OpenTherm Code Table

IDEtop dsecriptionOpenTherm NameOpenTherm DescriptionDefault ValueRangeOptionsClass
0O:Status
11:TsetControl setpointdegrees C (see notes below)0 .. 100
2M-Config / M-MemberIDcode
3S-Config / S-MemberIDcode
4Remote Request
55:ASF-flags / OEM-fault-code
66:RBP-flags
77:Cooling-control
88:TsetCH2
99:TrOverride
1010:TSP
1111:TSP-index / TSP-value
1212:FHB-size
1313:FHB-index / FHB-value
1414:Max-rel-mod-level-setting
1515:Max-Capacity / Min-Mod-LevelRoom Setpoint(-40..127)
1616:TrSetRoom Setpoint Current room temperature setpoint (°C)
1717:Rel.-mod-levelRelative Modulation LevelPercent modulation between min and max modulation levels. i.e.
0% = Minimum modulation level 100% = Maximum modulation level
1818:CH-pressureCH water pressureWater pressure of the boiler CH circuit (bar)
1919:DHW-flow-rateDHW flow rateWater flow rate through the DHW circuit (l/min)
2020:Day-Time
2121:Date
2222:Year
2323:TrSetCH2-40..127
2424:TrRoom temperature Current sensed room temperature (°C)-40..127
2525:TboilerBoiler water temp.Flow water temperature from boiler (°C) -40..127
2626:TdhwDHW temperature Domestic hot water temperature (°C) -40..127
2727:ToutsideOutside temperature Outside air temperature (°C) -40..127
2828:TretReturn water temperature Return water temperature to boiler (°C) -40..127
2929:TstorageSolar storage temperature Solar storage temperature (°C)-40..127
3030:TcollectorSolar collector temperature Solar collector temperature (°C)-40..250
3131:TflowCH2Flow temperature CH2Flow water temperature of the second central-40..127
3232:Tdhw2DHW2 temperatureDomestic hot water temperature 2 (°C)
3333:TexhaustExhaust temperature Exhaust temperature (°C)
3434:Tboiler-heat-exchanger
3535:Tboiler-heat-exchanger
3636:Flame current
3737:TrCH2
3838:Relative Humidity
3939:Reserved
4040:Reserved
4141:Reserved
4242:Reserved
4343:Reserved
4444:Reserved
4545:Reserved
4646:Reserved
4747:Reserved
4848:TdhwSet-UB / TdhwSet-LB
4949:MaxTSet-UB / MaxTSet-LB
5050:Reserved
5151:Reserved
5252:Reserved
5353:Reserved
5454:Reserved
5555:Reserved
5656:TdhwSet
5757:MaxTSet
5858:Reserved
5959:Reserved
6060:Reserved
6161:Reserved
6262:Reserved
6363:Reserved
6464:Reserved
6565:Reserved
6666:Reserved
6767:Reserved
6868:Reserved
6969:Reserved
7070:Status ventilation / heat-recovery
7171:Vset
72ASF-flags / OEM-fault-code ventilation / hea...
730EM diagnostic code
74-Config / S-MemberIDcode ventilation / he...
750penTherm version
76Ventilation / heat-recovery version
7777:Rel-vent-level
7878:RH-exhaust
7979:C02-exhaust
8080:Tsi
8181:Tso
8282:Tei
8383:Teo
8484:RPM-exhaust
8585:RPM-supply
86RBP-flags ventilation / heat-recovery
87Nominal ventilation value
8888:TSP ventilation / heat-recover
89TSP-index / TSP-value ventilation / heat-rec...
90FHB-size ventilation / heat-recovery
9191:FHB-index / FHB-value ventilation / heat-rec...
9292:Reserved
9393:Reserved
9494:Reserved
9595:Reserved
9696:Reserved
9797:Reserved
9898:RF sensor status information
99Remote Override Operating Mode Heating/..
100Remote override function
101Status Solar Storage
102ASF-flags / OEM-fault-code Solar Storage
103S-Config / S-MemberIDcode Solar Storage
104104:Solar Storage version
105TSP Solar Storage
106TSP-index / TSP-value Solar Storage
107FHB-size Solar Storage
108FHB-index / FHB-value Solar Storage
109Electricity producer starts
110Electricity producer hours
111Electricity production
112Cumulativ Electricity production
113Un-successful burner starts
114114:Flame signal too low number
1150EM diagnostic code
116Successful Burner startsBurner starts Number of starts burner. Reset by writing zero is optional for slave. 0..65535
117CH pump startsCH pump starts Number of starts CH pump. Reset by writing zero is optional for slave. 0..65535
118DHW pump/valve startsDHW pump/valve starts Number of starts DHW pump/valve. Reset by writing zero is optional for slave. 0..65535
119DHW burner startsDHW burner starts Number of starts burner in DHW mode. Reset by writing zero is optional for slave. 0..65535
120120:Burner operation hoursBurner operation hours Number of hours that burner is in operation (i.e. flame on). Reset by writing zero is optional for slave. 0..65535
121CH pump operation hoursCH pump operation hours Number of hours that CH pump has been running. Reset by writing zero is optional for slave. 0..65535
122DHW pump/valve operation hoursDHW pump/valve operation u16 hours Number of hours that DHW pump has been running or DHW valve has been opened. Reset by writing zero is optional for slave. 0..65535
123DHW burner operation hoursDHW burner operation hours Number of hours that burner is in operation during DHW mode. Reset by writing zero is optional for slave.
1240penTherm version MasterOpenTherm version Master The implemented version of the OpenTherm Protocol Specification in the master.
1250penTherm version SlaveOpenTherm version Slave The implemented version of the OpenTherm Protocol Specification in the slave.
126126:Master-versionMaster product version number and type
HB : product type
LB : product version
The master device product version number and type as defined by the manufacturer.
127127:Slave-versionSlave product version number and type
HB : product type
LB : product version
The slave device product version number and type as defined by the manufacturer.

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