constants.h

#ifndef _CONSTANTS_H
#define _CONSTANTS_H

#include <OneWire.h>
#include <Dallastemperature.h>

//
// These constants are not meant to be changed, unless the harddware or wiring changes
//

#define REVISION 20181212

// uncomment following line if using different set of sensors for testing
//#define TESTING

#ifdef TESTING
const DeviceAddress HeatExInAddr = { 0x28, 0xFF, 0xD2, 0x6C, 0xC1, 0x16, 0x04, 0xC8 };
const DeviceAddress HeatExOutAddr = { 0x28, 0xFF, 0x6A, 0x93, 0xB5, 0x16, 0x03, 0xA0 };
const DeviceAddress HWC_TopAddr = { 0x28, 0xFF, 0xE6, 0x6C, 0xC1, 0x16, 0x04, 0x53 };
const DeviceAddress HWC_BottomAddr = { 0x28, 0xFF, 0x49, 0x23, 0xB5, 0x16, 0x05, 0x5A };

const unsigned long recycleTimeMsec = 10 * 1000L;
const double targetTemperature = 30.0;
const double hwcBottomTempMax = 30.0;
const double hwcBottomTempMin = 28.0;
const double hexInTempMax = 28.0;
const double hexOutTempMax = 32.0;

#else
// heat exchanger input and output temperature sensors
const DeviceAddress HeatExInAddr = { 0x28, 0xFF, 0xA7, 0x67, 0x70, 0x17, 0x03, 0xB3 }; // A1-2
const DeviceAddress HeatExOutAddr = { 0x28, 0xFF, 0x8C, 0x25, 0x71, 0x17, 0x03, 0x77 }; // A1-4

// hot-water cylinder top and bottom temperature sensors
const DeviceAddress HWC_TopAddr = { 0x28, 0xFF, 0x56, 0xE9, 0x70, 0x17, 0x03, 0x14 }; // A1-1
const DeviceAddress HWC_BottomAddr = { 0x28, 0xFF, 0x70, 0x20, 0x71, 0x17, 0x03, 0x71 }; // A1-3

const unsigned long recycleTimeMsec = 5 * 60 * 1000L; // 5 minutes
const double targetTemperature = 58.0;
const double hwcBottomTempMax = 50.0;
const double hwcBottomTempMin = 45.0;
const double hexInTempMax = 37; // 45.0;
const double hexOutTempMax = 70.0;

#endif

// outputs
const int selectorPin = 10;   // relay
const int compressorPin = 3;  // relay
const int pumpPin = 13;       // solid-state relay

const float dutyMinimum = 0.2; // keep water flowing so temperature can be measured
const float dutyMaximum = 0.99; // avoid 1.0 as it makes relay logic misbehave
const unsigned int periodMsec = 1000;

#endif