Hitachi Yutaki S heatpump Modbus integration for Home Assistant

configuration.yaml

homeassistant:
  packages: !include_dir_named integrations

input_select: !include_dir_merge_named entities/input_select/
template: !include_dir_merge_list entities/template/

heatpump.yaml

---
# File location: entities/input_select/
pac_operation_state:
  name: Heatpump (PaC) Operation state
  options:
    - 'OFF'
    - Cool Demand OFF
    - Cool Thermostat OFF
    - Cool Thermostat ON
    - Heating Demand OFF
    - Heating Thermostat OFF
    - Heating Thermostat ON
    - Hot Water OFF (Domestic)
    - Hot Water ON (Domestic)
    - Swimming Pool OFF
    - Swimming Pool ON
    - Alarm

pac_central_mode:
  name: Heatpump (PaC) Central mode
  options:
    - Local
    - Air
    - Water
    - Full

pac_heat_circuit_status:
  name: Heatpump (PaC) Heat Circuit Status
  options:
    - No
    - Points
    - Gradient
    - Fix
 
pac_mode:
  name: Heatpump (PaC) Mode
  options:
    - Cool
    - Heat
    - Auto

modbus.yaml

---
# File location: integrations/
# Modbus integration
#
# https://www.home-assistant.io/integrations/modbus/
#
modbus:
  - name: "hitachi"
    type: tcp
    host: !secret pac_host
    port: 502
    # retry_on_empty: true
    delay: 3
    # timeout: 8
    message_wait_milliseconds: 30

    climates:
      - name: "Hot Water"
        unique_id: pac_dhw
        address: 1080
        target_temp_register: 1025
        max_temp: 60
        min_temp: 38
        scale: 1
        precision: 0
        temp_step: 1
        hvac_mode_register:
          address: 1024
          values:
            state_heat: 1
            state_off: 0
          write_registers: true

      # # House heating thermostat via Modbus
      # - name: "Heating HP"
      #   unique_id: pac_heating_c1
      #   address: 1012
      #   target_temp_register: 1011
      #   target_temp_write_registers: true
      #   max_temp: 25
      #   min_temp: 16
      #   scale: 0.1
      #   precision: 1
      #   temp_step: 0.5
      #   hvac_mode_register:
      #     address: 1002
      #     values:
      #       state_heat: 1
      #       state_off: 0
      #     write_registers: true

    switches:
      - name: "Heatpump System"
        unique_id: pac_1000_system_on_off
        address: 1000
        write_type: holding
        command_on: 1
        command_off: 0
        verify:
          input_type: holding
          address: 1050
          state_on: 1
          state_off: 0

      - name: "Heatpump Heating"
        unique_id: pac_1002_heating_on_off
        address: 1002
        write_type: holding
        command_on: 1
        command_off: 0
        verify:
          input_type: holding
          address: 1052
          state_on: 1
          state_off: 0

      - name: "Heatpump ECO mode"
        unique_id: pac_1007_mode_eco_confort
        address: 1007
        write_type: holding
        command_on: 1
        command_off: 0
        verify:
          input_type: holding
          address: 1057
          state_on: 1
          state_off: 0

      - name: "Heatpump Hot Water"
        unique_id: pac_1024_dhw_on_off
        address: 1024
        write_type: holding
        command_on: 1
        command_off: 0
        verify:
          input_type: holding
          address: 1076
          state_on: 1
          state_off: 0

      - name: "Heatpump DHW Boost"
        unique_id: pac_1026_dhw_boost
        address: 1026
        write_type: holding
        command_on: 1
        command_off: 0
        verify:
          input_type: holding
          address: 1078
          state_on: 1
          state_off: 0

      - name: "Heatpump C1 Heating Thermostat available"
        unique_id: pac_1010_c1_thermostat_available
        address: 1010
        write_type: holding
        command_on: 1
        command_off: 0
        verify:
          input_type: holding
          address: 1078
          state_on: 1
          state_off: 0

    sensors:
      - name: pac_1051_unit_mode
        unique_id: pac_1051_unit_mode

        address: 1051

      # Circuit 1
      - name: pac_1053_circuit1_heat_control_type
        unique_id: pac_1053_circuit1_heat_control_type

        address: 1053

      - name: pac_1055_set_fix_temp_water_hot
        unique_id: pac_1055_set_fix_temp_water_hot

        unit_of_measurement: °C
        device_class: temperature
        # min_value: 1
        address: 1055

      - name: pac_1057_mode_eco_confort
        unique_id: pac_1057_mode_eco_confort

        address: 1057

      - name: pac_1058_set_temp_offset_eco_hot
        unique_id: pac_1058_set_temp_offset_eco_hot

        unit_of_measurement: °C
        device_class: temperature
        # min_value: 1
        address: 1058

      - name: pac_1010_thermostat_available
        unique_id: pac_1010_thermostat_available

        address: 1010

      - name: pac_1011_thermostat_setting_temp
        unique_id: pac_1011_thermostat_setting_temp

        unit_of_measurement: °C
        device_class: temperature
        scale: 0.1
        precision: 1
        address: 1011

      - name: pac_1012_thermostat_room_temp
        unique_id: pac_1012_thermostat_room_temp

        unit_of_measurement: °C
        device_class: temperature
        scale: 0.1
        precision: 2
        address: 1012

      - name: pac_1060_set_temp_thermostat
        unique_id: pac_1060_set_temp_thermostat

        unit_of_measurement: °C
        device_class: temperature
        scale: 0.1
        precision: 1
        address: 1060

      - name: pac_1061_temp_room_thermostat
        unique_id: pac_1061_temp_room_thermostat

        unit_of_measurement: °C
        device_class: temperature
        scale: 0.1
        precision: 1
        address: 1061

      - name: pac_1062_set_temp_thermostat_wireless
        unique_id: pac_1062_set_temp_thermostat_wireless

        unit_of_measurement: °C
        device_class: temperature
        scale: 0.1
        precision: 1
        address: 1062

      - name: pac_1063_temp_room_thermostat_wireless
        unique_id: pac_1063_temp_room_thermostat_wireless

        unit_of_measurement: °C
        device_class: temperature
        scale: 0.1
        precision: 1
        address: 1063

      # Domestic Hot Water
      - name: pac_1077_dhw_set_temp
        unique_id: pac_1077_dhw_set_temp

        unit_of_measurement: °C
        device_class: temperature
        precision: 1
        # min_value: 1
        address: 1077

      - name: pac_1078_dhw_boost_status
        unique_id: pac_1078_dhw_boost_status

        address: 1078

      - name: pac_1079_dhw_demand_mode
        unique_id: pac_1079_dhw_demand_mode

        address: 1079

      # System / General
      - name: pac_1088_unit_mode_control
        unique_id: pac_1088_unit_mode_control

        address: 1088

      - name: pac_1090_unit_operational_status
        unique_id: pac_1090_unit_operational_status

        address: 1090

      - name: pac_1091_temp_outdoor
        unique_id: pac_1091_temp_outdoor

        unit_of_measurement: °C
        device_class: temperature
        address: 1091

      - name: pac_1092_temp_water_in
        unique_id: pac_1092_temp_water_in

        unit_of_measurement: °C
        device_class: temperature
        address: 1092

      - name: pac_1093_temp_water_out
        unique_id: pac_1093_temp_water_out

        unit_of_measurement: °C
        device_class: temperature
        address: 1093

      - name: pac_1094_hlink_status
        unique_id: pac_1094_hlink_status

        address: 1094

      - name: pac_1095_PCB_software
        unique_id: pac_1095_PCB_software

        address: 1095

      - name: pac_1096_LCD_software
        unique_id: pac_1096_LCD_software

        address: 1096

      - name: pac_1097_unit_capacity
        unique_id: pac_1097_unit_capacity

        unit_of_measurement: kWh
        address: 1097

      - name: pac_1098_unit_power_consumption
        unique_id: pac_1098_unit_power_consumption

        unit_of_measurement: kWh
        device_class: energy
        address: 1098

      - name: pac_1200_temp_water_out_hp
        unique_id: pac_1200_temp_water_out_hp

        unit_of_measurement: °C
        device_class: temperature
        address: 1200

      - name: pac_1201_temp_outdoor_average
        unique_id: pac_1201_temp_outdoor_average

        unit_of_measurement: °C
        device_class: temperature
        address: 1201

      - name: pac_1206_temp_gas
        unique_id: pac_1206_temp_gas

        unit_of_measurement: °C
        device_class: temperature
        # min_value: 1
        address: 1206

      - name: pac_1207_temp_liquid
        unique_id: pac_1207_temp_liquid

        unit_of_measurement: °C
        device_class: temperature
        address: 1207

      - name: pac_1208_temp_gas_discharge
        unique_id: pac_1208_temp_gas_discharge

        unit_of_measurement: °C
        device_class: temperature
        address: 1208

      - name: pac_1209_temp_evaporation
        unique_id: pac_1209_temp_evaporation

        unit_of_measurement: °C
        device_class: temperature
        address: 1209

      - name: pac_1210_expansion_valve_open_indoor
        unique_id: pac_1210_expansion_valve_open_indoor

        unit_of_measurement: "%"
        # scan_interval: 5
        address: 1210

      - name: pac_1211_expansion_valve_open_outdoor
        unique_id: pac_1211_expansion_valve_open_outdoor

        unit_of_measurement: "%"
        # scan_interval: 5
        address: 1211

      - name: pac_1212_inverter_frequency
        unique_id: pac_1212_inverter_frequency

        unit_of_measurement: Hz
        # scan_interval: 5
        address: 1212

      - name: pac_1213_cause_stoppage
        unique_id: pac_1213_cause_stoppage

        address: 1213

      - name: pac_1214_compressor_active_current
        unique_id: pac_1214_compressor_active_current

        unit_of_measurement: A
        address: 1214

      - name: pac_1215_capacity_data
        unique_id: pac_1215_capacity_data

        address: 1215

      - name: pac_1217_defrost
        unique_id: pac_1217_defrost

        address: 1217

      - name: pac_1218_unit_model
        unique_id: pac_1218_unit_model

        address: 1218

      - name: pac_1219_water_temp_setting
        unique_id: pac_1219_water_temp_setting

        unit_of_measurement: °C
        address: 1219

      - name: pac_1220_water_flow
        unique_id: pac_1220_water_flow

        unit_of_measurement: m3/h
        scale: 0.1
        precision: 2
        address: 1220

      - name: pac_1221_water_pump_speed
        unique_id: pac_1221_water_pump_speed

        unit_of_measurement: "%"
        address: 1221

      - name: pac_1223_alarm_number
        unique_id: pac_1223_alarm_number

        address: 1223

      # Outdoor Unit / Coolant
      - name: pac_1224_r134a_discharge_temp
        unique_id: pac_1224_r134a_discharge_temp

        unit_of_measurement: °C
        address: 1224

      - name: pac_1225_r134a_suction_temp
        unique_id: pac_1225_r134a_suction_temp

        unit_of_measurement: °C
        address: 1225

      - name: pac_1226_r134a_discharge_pressure
        unique_id: pac_1226_r134a_discharge_pressure

        unit_of_measurement: bar
        scale: 0.1
        precision: 1
        address: 1226

      - name: pac_1227_r134a_section_pressure
        unique_id: pac_1227_r134a_section_pressure

        unit_of_measurement: bar
        device_class: pressure
        scale: 0.1
        precision: 1
        address: 1227

      - name: pac_1228_r134a_compressor_frequency
        unique_id: pac_1228_r134a_compressor_frequency

        unit_of_measurement: Hz
        device_class: frequency
        address: 1228

      - name: pac_1229_r134a_expansion_valve_2_indoor_open
        unique_id: pac_1229_r134a_expansion_valve_2_indoor_open

        unit_of_measurement: "%"
        state_class: measurement
        address: 1229

      - name: pac_1230_r134a_compressor_active_current
        unique_id: pac_1230_r134a_compressor_active_current

        unit_of_measurement: A
        address: 1230

sensor.heatpump.yaml

---
# File location: entities/template/
# # Use friendly state values for Heatpump
- sensor:
    - name: "Heatpump Mode"
      unique_id: pac_mode_status
      state: >-
        {{ iif(
            states('sensor.pac_1051_unit_mode') not in ('unavailable', 'unknown'),
            (state_attr('input_select.pac_mode','options')[(states('sensor.pac_1057_mode_eco_confort')|int)]),
            (state_attr('input_select.pac_mode','options')[0])
          )
        }}
      availability: "{{states('sensor.pac_1051_unit_mode')|int(-1) >= 0 }}"
    - name: "Heatpump Eco Mode"
      unique_id: pac_mode_eco_status
      state: >-
        {{ iif(
            states('sensor.pac_1057_mode_eco_confort') not in ('unavailable', 'unknown'),
            (state_attr('select.pac_eco_mode','options')[(states('sensor.pac_1057_mode_eco_confort')|int)]),
            (state_attr('select.pac_eco_mode','options')[0])
          )
        }}
      availability: "{{states('sensor.pac_1057_mode_eco_confort')|int(-1) >= 0 }}"
    - name: "Heatpump Heating Circuit Status"
      unique_id: pac_mode_heat_circuit_status
      state: >-
        {{ iif(
            states('sensor.pac_1053_circuit1_heat_control_type') not in ('unavailable', 'unknown'),
            (state_attr('input_select.pac_heat_circuit_status','options')[(states('sensor.pac_1053_circuit1_heat_control_type')|int)]),
            (state_attr('input_select.pac_heat_circuit_status','options')[0])
          )
        }}
      availability: "{{states('sensor.pac_1053_circuit1_heat_control_type')|int(-1) >= 0 }}"
    - name: "Heatpump Operation Status"
      unique_id: pac_operational_status
      state: >-
        {{ iif(
            states('sensor.pac_1090_unit_operational_status') not in ('unavailable', 'unknown'),
            (state_attr('input_select.pac_operation_state','options')[(states('sensor.pac_1090_unit_operational_status')|int)]),
            (state_attr('input_select.pac_operation_state','options')[0])
          )
        }}
      availability: "{{states('sensor.pac_1090_unit_operational_status')|int(-1) >= 0 }}"
    - name: "Heatpump DHW Demande Mode"
      unique_id: pac_dhw_demand_mode_status
      state: >-
        {{ iif(
            states('sensor.pac_1079_dhw_demand_mode') not in ('unavailable', 'unknown'),
            (state_attr('select.pac_dhw_demand_mode','options')[(states('sensor.pac_1079_dhw_demand_mode')|int)]),
            (state_attr('select.pac_dhw_demand_mode','options')[0])
          )
        }}
      availability: "{{states('sensor.pac_1079_dhw_demand_mode')|int(-1) >= 0 }}"
    - name: "Heatpump Central Mode Status"
      unique_id: pac_central_mode_status
      state: >-
        {{ iif(
            states('sensor.pac_1088_unit_mode_control') not in ('unavailable', 'unknown'),
            (state_attr('input_select.pac_central_mode','options')[(states('sensor.pac_1088_unit_mode_control')|int)]),
            (state_attr('input_select.pac_central_mode','options')[0])
          )
        }}
      availability: "{{states('sensor.pac_1088_unit_mode_control')|int(-1) >= 0 }}"
    - name: "pac_1080_dhw_temp"
      unique_id: "pac_1080_dhw_temp_template"
      unit_of_measurement: "°C"
      device_class: temperature
      state: >-
        {{ state_attr('climate.hot_water', 'current_temperature') }}

# # Control Heatpump using friendly name values (get initial state from sensor)
- select:
    - unique_id: "pac_eco_mode"
      state: >-
        {{ iif(
            states('sensor.pac_1057_mode_eco_confort') not in ('unavailable', 'unknown'),
            (state_attr('select.pac_eco_mode','options')[(states('sensor.pac_1057_mode_eco_confort')|int)]),
            (state_attr('select.pac_eco_mode','options')[0])
          )
        }}
      options: "{{ ['ECO','Comfort'] }}"
      select_option:
        - action: modbus.write_register
          data:
            hub: hitachi
            address: 1007
            value: >-
              {{ (state_attr('select.pac_eco_mode','options').index(option))|int}}
      availability: "{{states('sensor.pac_1057_mode_eco_confort')|int(-1) >= 0 }}"

    - unique_id: "pac_dhw_demand_mode"
      options: "{{ ['Standard','High Demand'] }}"
      state: >-
        {{ iif(
            states('sensor.pac_1079_dhw_demand_mode') not in ('unavailable', 'unknown'),
            (state_attr('select.pac_dhw_demand_mode','options')[(states('sensor.pac_1079_dhw_demand_mode')|int)]),
            (state_attr('select.pac_dhw_demand_mode','options')[0])
          )
        }}
      select_option:
        - action: modbus.write_register
          data:
            hub: hitachi
            address: 1027
            value: >-
              {{ (state_attr('select.pac_dhw_demand_mode','options').index(option))|int}}
      availability: "{{states('sensor.pac_1079_dhw_demand_mode')|int(-1) >= 0 }}"