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README.md
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README.md
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@ -128,38 +128,44 @@ qwer
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qwer
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## Firmware options and fine tunings
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QA tests, uncomment to enable
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```c
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//#define SELFTEST_RELAYS_LEDS_SPEAKER //speaker and relays QA test, uncomment to enable
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//#define SELFTEST_EEV //EEV QA test, uncomment to enable
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//#define SELFTEST_T_SENSORS //temperature sensors QA test, uncomment to enable
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```
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//communication protocol with external world
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Communication protocol with external world, choose one
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```c
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//#define RS485_JSON 1 //json, external systems integration
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//#define RS485_HUMAN 2 //RS485 is used in the same way as the local console, warning: Use only if 2 devices (server and this controller) are connected to the same RS485 line
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#define RS485_MODBUS 3 //default, Modbus via RS485, connection to the display (both sensor or 1602, see https://gitlab.com/valden/) or connection to any other MODBUS application or device
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```
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//system type, comment both if HP with EEV
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System type, comment both if HP with EEV
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```c
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//#define EEV_ONLY //Valden controller as EEV controller: NO target T sensor. No relays. Oly EEV. Sensors required: Tae, Tbe, current sensor. Additional T sensors can be used but not required.
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//#define NO_EEV //capillary tube or TXV, EEV not used
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```
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//which sensor is used to check setpoint, uncomment one of options
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Which sensor is used to check setpoint, uncomment one of options
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```c
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#define SETPOINT_THI //"warm floor" scheme: "hot in" (Thi) temperature used as setpoint
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//#define SETPOINT_TS1 //"swimming pool" or "water tank heater" scheme: "sensor 1" (Ts1) is used as setpoint and located somewhere in water tank
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```
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Some more options
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```c
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#define HUMAN_AUTOINFO 30000 //print stats to console, every milliseconds
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#define WATCHDOG //disable for older bootloaders
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//-----------------------USER OPTIONS END-----------------------
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```
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Next sections: advanced options
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Temperature sensors used in a system, comment to disable
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//-----------------------Fine Tuning OPTIONS-----------------------
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//next sections: advanced options
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//-----------------------T Sensors -----------------------
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//temperature sensors used in a system, comment to disable
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```c
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#define T_cold_in; //cold side (heat source) inlet sensor
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#define T_cold_out; //cold side outlet sensor
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#define T_before_evaporator; //"before" and "after evaporator" sensors are required to control EEV, both "EEV_ONLY" and "full" schemes
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@ -180,8 +186,10 @@ qwer
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#define T_hot_out; //hot side outlet
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//in full scheme Hot IN required! optional in "EEV_ONLY" scheme (see "EEV_ONLY" option),
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#define T_hot_in; //hot side inlet
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```
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//-----------------------TEMPERATURES-----------------------
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Temperature limits
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```c
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#define MAGIC 0x66; //change this value if you want to rewrite the T setpoint in EEPROM
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#define T_SETPOINT 26.0; //This is a predefind target temperature value (start temperature). EEPROM-saved. The value can be changed using 1. Console 2. Changing the "setpoint" on a display 3. Changing this value AND changing "magic number"
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#define T_SETPOINT_MAX 48.0; //maximum "setpoint" temperature that an ordinary user can set
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@ -198,9 +206,10 @@ qwer
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//#define T_REG_HEAT_THRESHOLD 17.0; //no longer used (PCB 1.3 MI +) artifact from experimental scheme with separator
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//#define T_HOTCIRCLE_DELTA_MIN 2.0; //not used since ~FW v1.6, "water heater with intermediate heat exchanger" scheme, where Ts1 == "sensor in water"; hot side CP will be switched on if "Ts1 - hot_out > T_HOTCIRCLE_DELTA_MIN"
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```
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//-----------------------WATTS AND CYCLES TIMES-----------------------
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//time: milliseconds, power: watts
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Watts, cycles times (milliseconds)
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```c
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#define MAX_WATTS 1000.0 + 70.0 + 80.0 //power limit, watt, HP stops in case of exceeding, examples: installation1: compressor 165: 920 Watts, + 35 watts 25/4 circ. pump at 1st speed + 53 watts 25/4 circ. pump at 2nd speed
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// installation2: compressor unk: ~1000 + hot CP 70 + cold CP 80 = 1150 watts
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// installation3: and so on
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@ -213,13 +222,13 @@ qwer
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#define HOTCIRCLE_START_EVERY 2400000 //while pauses: pump on "hot side" starts every 40 minutes (by default) (max 9999 seconds) to circulate water and get exact temperature reading , option used if "warm floor" installation (Thi as setpoint)...
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#define HOTCIRCLE_CHECK_PREPARE 300000 //while pauses: ...and wait temperature stabilisation 5 minutes (by default), after that do setpoint checks...
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#define HOTCIRCLE_STOP_AFTER (HOTCIRCLE_CHECK_PREPARE + COLDCIRCLE_PREPARE + 30000) //...and then stop after few minutes of circulating, if temperature is high and no need to start compressor; value must be check_prepare + coldcircle_prepare + 30 seconds (or more)
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```
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//-----------------------EEV-----------------------
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//If you are using capillary tube or TXV: simply skip next section
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//Depending on how many milliseconds are allocated per step, the speed of automatic tuning will change.
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//Remember that you'll see refrigeration system reaction on every step not immediately, but after few minutes, sometimes after tens of minutes.
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EEV options
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If you are using capillary tube or TXV: simply skip next section
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Depending on how many milliseconds are allocated per step, the speed of automatic tuning will change.
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Remember that you'll see refrigeration system reaction on every step not immediately, but after few minutes, sometimes after tens of minutes.
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```c
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#define EEV_MAXPULSES 250 //max steps, 250 is tested for sanhua 1.3
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//steps tuning: mulliseconds per fast and slow (precise) steps
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@ -251,13 +260,15 @@ qwer
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//do not use next option untill you're not really need it
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//#define EEV_DEBUG //debug, usefull during system fine tuning, works both with local serial and RS485_HUMAN
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//-----------------------ADDRESSES-----------------------
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```
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```c
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const char devID = 0x45; //used only if JSON communication, does not matter for modbus and Valden display https://github.com/OpenHP/
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const char hostID = 0x30; //used only if JSON communication, not used for modbus
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//-----------------------OTHER-----------------------
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```
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And last option
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```c
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#define MAX_SEQUENTIAL_ERRORS 15 //max cycles to wait auto-clean error, ex: T sensor appears, stop compressor after counter exceeded (millis_cycle * MAX_SEQUENTIAL_ERRORS)
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//-----------------------Fine Tuning OPTIONS END -----------------------
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```
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## Diagnostic and troubleshooting
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