Fix MELCloud temperature unit (#35003)

The MELCLoud API produces and consumes only Celsius.

homeassistant/components/melcloud/climate.py

@@ -31,7 +31,6 @@ from homeassistant.config_entries import ConfigEntry
 from homeassistant.const import TEMP_CELSIUS
 from homeassistant.helpers import config_validation as cv, entity_platform
 from homeassistant.helpers.typing import HomeAssistantType
-from homeassistant.util.temperature import convert as convert_temperature
 
 from . import MelCloudDevice
 from .const import (
@@ -44,7 +43,6 @@ from .const import (
     DOMAIN,
     SERVICE_SET_VANE_HORIZONTAL,
     SERVICE_SET_VANE_VERTICAL,
-    TEMP_UNIT_LOOKUP,
 )
 
 SCAN_INTERVAL = timedelta(seconds=60)
@@ -169,7 +167,7 @@ class AtaDeviceClimate(MelCloudClimate):
     @property
     def temperature_unit(self) -> str:
         """Return the unit of measurement used by the platform."""
-        return TEMP_UNIT_LOOKUP.get(self._device.temp_unit, TEMP_CELSIUS)
+        return TEMP_CELSIUS
 
     @property
     def hvac_mode(self) -> str:
@@ -281,9 +279,7 @@ class AtaDeviceClimate(MelCloudClimate):
         if min_value is not None:
             return min_value
 
-        return convert_temperature(
-            DEFAULT_MIN_TEMP, TEMP_CELSIUS, self.temperature_unit
-        )
+        return DEFAULT_MIN_TEMP
 
     @property
     def max_temp(self) -> float:
@@ -292,9 +288,7 @@ class AtaDeviceClimate(MelCloudClimate):
         if max_value is not None:
             return max_value
 
-        return convert_temperature(
-            DEFAULT_MAX_TEMP, TEMP_CELSIUS, self.temperature_unit
-        )
+        return DEFAULT_MAX_TEMP
 
 
 class AtwDeviceZoneClimate(MelCloudClimate):
@@ -331,7 +325,7 @@ class AtwDeviceZoneClimate(MelCloudClimate):
     @property
     def temperature_unit(self) -> str:
         """Return the unit of measurement used by the platform."""
-        return TEMP_UNIT_LOOKUP.get(self._device.temp_unit, TEMP_CELSIUS)
+        return TEMP_CELSIUS
 
     @property
     def hvac_mode(self) -> str:
@@ -391,7 +385,7 @@ class AtwDeviceZoneClimate(MelCloudClimate):
 
         MELCloud API does not expose radiator zone temperature limits.
         """
-        return convert_temperature(10, TEMP_CELSIUS, self.temperature_unit)
+        return 10
 
     @property
     def max_temp(self) -> float:
@@ -399,4 +393,4 @@ class AtwDeviceZoneClimate(MelCloudClimate):
 
         MELCloud API does not expose radiator zone temperature limits.
         """
-        return convert_temperature(30, TEMP_CELSIUS, self.temperature_unit)
+        return 30

homeassistant/components/melcloud/const.py

@@ -1,7 +1,4 @@
 """Constants for the MELCloud Climate integration."""
-from pymelcloud.const import UNIT_TEMP_CELSIUS, UNIT_TEMP_FAHRENHEIT
-
-from homeassistant.const import TEMP_CELSIUS, TEMP_FAHRENHEIT
 
 DOMAIN = "melcloud"
 
@@ -15,9 +12,3 @@ ATTR_VANE_VERTICAL_POSITIONS = "vane_vertical_positions"
 
 SERVICE_SET_VANE_HORIZONTAL = "set_vane_horizontal"
 SERVICE_SET_VANE_VERTICAL = "set_vane_vertical"
-
-TEMP_UNIT_LOOKUP = {
-    UNIT_TEMP_CELSIUS: TEMP_CELSIUS,
-    UNIT_TEMP_FAHRENHEIT: TEMP_FAHRENHEIT,
-}
-TEMP_UNIT_REVERSE_LOOKUP = {v: k for k, v in TEMP_UNIT_LOOKUP.items()}

homeassistant/components/melcloud/sensor.py

@@ -12,11 +12,11 @@ from homeassistant.const import (
 from homeassistant.helpers.entity import Entity
 
 from . import MelCloudDevice
-from .const import DOMAIN, TEMP_UNIT_LOOKUP
+from .const import DOMAIN
 
 ATTR_MEASUREMENT_NAME = "measurement_name"
 ATTR_ICON = "icon"
-ATTR_UNIT_FN = "unit_fn"
+ATTR_UNIT = "unit"
 ATTR_DEVICE_CLASS = "device_class"
 ATTR_VALUE_FN = "value_fn"
 ATTR_ENABLED_FN = "enabled"
@@ -25,7 +25,7 @@ ATA_SENSORS = {
     "room_temperature": {
         ATTR_MEASUREMENT_NAME: "Room Temperature",
         ATTR_ICON: "mdi:thermometer",
-        ATTR_UNIT_FN: lambda x: TEMP_UNIT_LOOKUP.get(x.device.temp_unit, TEMP_CELSIUS),
+        ATTR_UNIT: TEMP_CELSIUS,
         ATTR_DEVICE_CLASS: DEVICE_CLASS_TEMPERATURE,
         ATTR_VALUE_FN: lambda x: x.device.room_temperature,
         ATTR_ENABLED_FN: lambda x: True,
@@ -33,7 +33,7 @@ ATA_SENSORS = {
     "energy": {
         ATTR_MEASUREMENT_NAME: "Energy",
         ATTR_ICON: "mdi:factory",
-        ATTR_UNIT_FN: lambda x: ENERGY_KILO_WATT_HOUR,
+        ATTR_UNIT: ENERGY_KILO_WATT_HOUR,
         ATTR_DEVICE_CLASS: None,
         ATTR_VALUE_FN: lambda x: x.device.total_energy_consumed,
         ATTR_ENABLED_FN: lambda x: x.device.has_energy_consumed_meter,
@@ -43,7 +43,7 @@ ATW_SENSORS = {
     "outside_temperature": {
         ATTR_MEASUREMENT_NAME: "Outside Temperature",
         ATTR_ICON: "mdi:thermometer",
-        ATTR_UNIT_FN: lambda x: TEMP_UNIT_LOOKUP.get(x.device.temp_unit, TEMP_CELSIUS),
+        ATTR_UNIT: TEMP_CELSIUS,
         ATTR_DEVICE_CLASS: DEVICE_CLASS_TEMPERATURE,
         ATTR_VALUE_FN: lambda x: x.device.outside_temperature,
         ATTR_ENABLED_FN: lambda x: True,
@@ -51,7 +51,7 @@ ATW_SENSORS = {
     "tank_temperature": {
         ATTR_MEASUREMENT_NAME: "Tank Temperature",
         ATTR_ICON: "mdi:thermometer",
-        ATTR_UNIT_FN: lambda x: TEMP_UNIT_LOOKUP.get(x.device.temp_unit, TEMP_CELSIUS),
+        ATTR_UNIT: TEMP_CELSIUS,
         ATTR_DEVICE_CLASS: DEVICE_CLASS_TEMPERATURE,
         ATTR_VALUE_FN: lambda x: x.device.tank_temperature,
         ATTR_ENABLED_FN: lambda x: True,
@@ -61,7 +61,7 @@ ATW_ZONE_SENSORS = {
     "room_temperature": {
         ATTR_MEASUREMENT_NAME: "Room Temperature",
         ATTR_ICON: "mdi:thermometer",
-        ATTR_UNIT_FN: lambda x: TEMP_UNIT_LOOKUP.get(x.device.temp_unit, TEMP_CELSIUS),
+        ATTR_UNIT: TEMP_CELSIUS,
         ATTR_DEVICE_CLASS: DEVICE_CLASS_TEMPERATURE,
         ATTR_VALUE_FN: lambda zone: zone.room_temperature,
         ATTR_ENABLED_FN: lambda x: True,
@@ -147,7 +147,7 @@ class MelDeviceSensor(Entity):
     @property
     def unit_of_measurement(self):
         """Return the unit of measurement."""
-        return self._def[ATTR_UNIT_FN](self._api)
+        return self._def[ATTR_UNIT]
 
     @property
     def device_class(self):

homeassistant/components/melcloud/water_heater.py

@@ -18,7 +18,7 @@ from homeassistant.const import TEMP_CELSIUS
 from homeassistant.helpers.typing import HomeAssistantType
 
 from . import DOMAIN, MelCloudDevice
-from .const import ATTR_STATUS, TEMP_UNIT_LOOKUP
+from .const import ATTR_STATUS
 
 
 async def async_setup_entry(
@@ -80,7 +80,7 @@ class AtwWaterHeater(WaterHeaterDevice):
     @property
     def temperature_unit(self) -> str:
         """Return the unit of measurement used by the platform."""
-        return TEMP_UNIT_LOOKUP.get(self._device.temp_unit, TEMP_CELSIUS)
+        return TEMP_CELSIUS
 
     @property
     def current_operation(self) -> Optional[str]: