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@ -170,19 +170,14 @@ Temperature sensors used in a system, comment to disable
#define T_cold_out; //cold side outlet sensor #define T_cold_out; //cold side outlet sensor
#define T_before_evaporator; //"before" and "after evaporator" sensors are required to control EEV, both "EEV_ONLY" and "full" schemes #define T_before_evaporator; //"before" and "after evaporator" sensors are required to control EEV, both "EEV_ONLY" and "full" schemes
#define T_after_evaporator; //"before" and "after evaporator" sensors are required to control EEV, both "EEV_ONLY" and "full" schemes #define T_after_evaporator; //"before" and "after evaporator" sensors are required to control EEV, both "EEV_ONLY" and "full" schemes
//#define T_separator_gas; //no longer used (PCB 1.3 MI +) artifact from experimental scheme with separator
//#define T_separator_liquid; //no longer used (PCB 1.3 MI +) artifact from experimental scheme with separator
//#define T_before_valve; //no longer used (PCB 1.3 MI +) artifact from experimental scheme with separator
//#define T_suction; //no longer used (PCB 1.3 MI +) artifact from experimental scheme with separator
#ifdef SETPOINT_TS1 #ifdef SETPOINT_TS1
#define T_sensor_1; //T values from the additional sensor S1 are used as a "setpoint" in "pool" or "water tank heater" schemes #define T_sensor_1; //T values from the additional sensor S1 are used as a "setpoint" in "pool" or "water tank heater" schemes
#endif #endif
//!!! //#define T_sensor_2; //additional sensor, any source, for example: outdoor temperature, in-case temperature, and so on
#define T_sensor_2; //additional sensor, any source, for example: outdoor temperature, in-case temperature, and so on
#define T_crc; //if defined: enables crankcase T sensor and crankcase heater on relay 4 #define T_crc; //if defined: enables crankcase T sensor and crankcase heater on relay 4
//#define T_regenerator; //an additional sensor, the regenerator temperature sensor (inlet or outlet or housing) is used only to obtain a temperature data if necessary //#define T_regenerator; //an additional sensor, the regenerator temperature sensor (inlet or outlet or housing) is used only to obtain a temperature data if necessary
#define T_afrer_condenser; //after condenser (and before valve) #define T_afrer_condenser; //after condenser (and before valve)
//!!!#define T_before_condenser; //before condenser (discharge) #define T_before_condenser; //before condenser (discharge)
#define T_hot_out; //hot side outlet #define T_hot_out; //hot side outlet
//in full scheme Hot IN required! optional in "EEV_ONLY" scheme (see "EEV_ONLY" option), //in full scheme Hot IN required! optional in "EEV_ONLY" scheme (see "EEV_ONLY" option),
#define T_hot_in; //hot side inlet #define T_hot_in; //hot side inlet
@ -196,23 +191,18 @@ Temperature limits
#define T_SETPOINT_MIN 10.0; //min. "setpoint" temperature that an ordinary user can set, lower values are not recommended until antifreeze fluids at hot side are used. #define T_SETPOINT_MIN 10.0; //min. "setpoint" temperature that an ordinary user can set, lower values are not recommended until antifreeze fluids at hot side are used.
#define T_CRANKCASE_MIN 8.0; //compressor (crankcase) min. temperature, HP will not start if T lower #define T_CRANKCASE_MIN 8.0; //compressor (crankcase) min. temperature, HP will not start if T lower
#define T_CRANKCASE_MAX 110.0; //compressor (crankcase) max. temperature, overheating protection, HP will stop if T higher #define T_CRANKCASE_MAX 110.0; //compressor (crankcase) max. temperature, overheating protection, HP will stop if T higher
#define T_CRANKCASE_HEAT_THRESHOLD 16.0; //crankcase heater threshold: heater will be powered on if T lower #define T_CRANKCASE_HEAT_THRESHOLD 16.0;//crankcase heater threshold: heater will be powered on if T lower
#define T_WORKINGOK_CRANKCASE_MIN 25.0; //compressor temperature: additional check. HP will stop if T is lower than this value after 5 minutes of work. Do not set the value too large to ensure normal operation after long pauses. #define T_WORKINGOK_CRANKCASE_MIN 25.0;//compressor temperature: additional check. HP will stop if T is lower than this value after 5 minutes of work. Do not set the value too large to ensure normal operation after long pauses.
#define T_BEFORE_CONDENSER_MAX 108.0; //discharge MAX, system stops if discharge higher #define T_BEFORE_CONDENSER_MAX 108.0; //discharge MAX, system stops if discharge higher
#define T_COLDREF_MIN -14.0; //suction min., HP stops if T lower, cold side (glycol) loop freeze protection and compressor protection against liquid #define T_COLDREF_MIN -14.0; //suction min., HP stops if T lower, cold side (glycol) loop freeze protection and compressor protection against liquid
#define T_BEFORE_EVAP_WORK_MIN -25.5; //!!!before evaporator (after valve) min. T; can be very low for a few minutes after startup, ex: capillary tube in some conditions; and for all systems: after long shut-off, lack of reagent, 1st starts, and many others #define T_BEFORE_EVAP_WORK_MIN -25.5; //!!!before evaporator (after valve) min. T; can be very low for a few minutes after startup, ex: capillary tube in some conditions; and for all systems: after long shut-off, lack of reagent, 1st starts, and many others
#define T_COLD_MIN -15.5; //cold side (glycol) loop freeze protection: HP stops if inlet or outlet temperature lower #define T_COLD_MIN -15.5; //cold side (glycol) loop freeze protection: HP stops if inlet or outlet temperature lower
#define T_HOT_MAX 50.0; //hot loop: HP stops if hot side inlet or outlet temperature higher than this threshold #define T_HOT_MAX 50.0; //hot loop: HP stops if hot side inlet or outlet temperature higher than this threshold
//#define T_REG_HEAT_THRESHOLD 17.0; //no longer used (PCB 1.3 MI +) artifact from experimental scheme with separator
//#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"
``` ```
Watts, cycles times (milliseconds) Watts, cycles times (milliseconds)
```c ```c
#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 #define MAX_WATTS 1000.0 + 70.0 + 80.0 //power limit, watt, HP stops in case of exceeding, example: compressor: ~1000 + hot CP 70 + cold CP 80
// installation2: compressor unk: ~1000 + hot CP 70 + cold CP 80 = 1150 watts
// installation3: and so on
#define POWERON_PAUSE 300000 //after power on: wait 5 minutes before the start of HP (protected from power faults) #define POWERON_PAUSE 300000 //after power on: wait 5 minutes before the start of HP (protected from power faults)
#define MINCYCLE_POWEROFF 600000 //after a normal compressor stop: 10 minutes pause (max 99999 seconds) #define MINCYCLE_POWEROFF 600000 //after a normal compressor stop: 10 minutes pause (max 99999 seconds)
#define MINCYCLE_POWERON 3600000 //after compressor start: minimum compressor operation time, i.e. work time is not less than this value (or more, depending on the setpoint temperature) 60 minutes = 3.6 KK 120mins = 5.4 kK. #define MINCYCLE_POWERON 3600000 //after compressor start: minimum compressor operation time, i.e. work time is not less than this value (or more, depending on the setpoint temperature) 60 minutes = 3.6 KK 120mins = 5.4 kK.
@ -262,11 +252,13 @@ Remember that you'll see refrigeration system reaction on every step not immedia
//#define EEV_DEBUG //debug, usefull during system fine tuning, works both with local serial and RS485_HUMAN //#define EEV_DEBUG //debug, usefull during system fine tuning, works both with local serial and RS485_HUMAN
``` ```
Communication addresses
```c ```c
const char devID = 0x45; //used only if JSON communication, does not matter for modbus and Valden display https://github.com/OpenHP/ const char devID = 0x45; //used only if JSON communication, does not matter for modbus and Valden display https://github.com/OpenHP/
const char hostID = 0x30; //used only if JSON communication, not used for modbus const char hostID = 0x30; //used only if JSON communication, not used for modbus
``` ```
And last option
Last option
```c ```c
#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) #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)
``` ```