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Add SET42 - SetPumpFlowrate #776

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Add SET42 - SetPumpFlowrate #776

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68d5528
Add SET42 - SetPumpFlowrate
andiwirs Jan 17, 2026
56c7208
Add SET42 - SetPumpFlowrateMode
andiwirs Jan 19, 2026
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23 changes: 23 additions & 0 deletions HeishaMon/commands.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -939,6 +939,29 @@ unsigned int set_quiet_mode_priority(char *msg, unsigned char *cmd, char *log_ms
return sizeof(panasonicSendQuery);
}

unsigned int set_pump_flowrate_mode(char *msg, unsigned char *cmd, char *log_msg) {

const byte address=29;
byte value = 0b01;

if ( String(msg).toInt() == 1 ) {
value = 0b10;
}

{
char tmp[256] = { 0 };
snprintf_P(tmp, 255, PSTR("set pump flowrate mode %d"), value - 1);
memcpy(log_msg, tmp, sizeof(tmp));
}

{
memcpy_P(cmd, panasonicSendQuery, sizeof(panasonicSendQuery));
cmd[address] = value << 4;
}

return sizeof(panasonicSendQuery);
}

unsigned int set_external_compressor_control(char *msg, unsigned char *cmd, char *log_msg){
const byte off_state=64;
const byte address=23;
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2 changes: 2 additions & 0 deletions HeishaMon/commands.h
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Expand Up @@ -69,6 +69,7 @@ unsigned int set_external_error(char *msg, unsigned char *cmd, char *log_msg);
unsigned int set_heatingcontrol(char *msg, unsigned char *cmd, char *log_msg);
unsigned int set_smart_dhw(char *msg, unsigned char *cmd, char *log_msg);
unsigned int set_quiet_mode_priority(char *msg, unsigned char *cmd, char *log_msg);
unsigned int set_pump_flowrate_mode(char *msg, unsigned char *cmd, char *log_msg);

//optional pcb commands
unsigned int set_heat_cool_mode(char *msg, char *log_msg);
Expand Down Expand Up @@ -159,6 +160,7 @@ const cmdStruct commands[] PROGMEM = {
{ "SetHeatingControl", set_heatingcontrol },
{ "SetSmartDHW", set_smart_dhw },
{ "SetQuietModePriority", set_quiet_mode_priority },
{ "SetPumpFlowrateMode", set_pump_flowrate_mode },
};

struct optCmdStruct{
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2 changes: 1 addition & 1 deletion MQTT-Topics.md
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Expand Up @@ -228,7 +228,7 @@ SET38 | SetBivalentAPStopTemp | Set bivalent adv. par. stop temp | -15 to 35
SET39 | SetHeatingControl | Set heating control | 0=comfort, 1=efficiency
SET40 | SetSmartDHW | Set SmartDHW | 0=variable, 1=standard
SET41 | SetQuietModePriority | Set Quiet Mode Priority | 0=sound, 1=capacity

SET42 | SetPumpFlowrateMode | Set Pump Flowrate Mode | 0=deltaT, 1=max. duty

*If you operate your heatpump in water mode with direct temperature setup: topics ending xxxRequestTemperature will set the absolute target temperature.*

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