diff --git a/custom_components/fglair/__init__.py b/custom_components/fglair/__init__.py
index a967cdb..6d716a8 100644
--- a/custom_components/fglair/__init__.py
+++ b/custom_components/fglair/__init__.py
@@ -64,19 +64,20 @@ async def async_setup_entry(hass: HomeAssistant, entry: ConfigEntry) -> bool:
     hass.data[DATA_PENDING] = hass.data.get(DATA_PENDING, 0) + 1
 
     client = FglairClient(hass, entry.data)
-    try:
-        await client.async_start()
-    finally:
-        hass.data[DATA_PENDING] -= 1
-
     conversions = ConversionSet.from_entry(entry.data)
+    # Координатор создаётся (и подписывается) до старта сессии, чтобы не
+    # пропустить первое ONLINE.
     coordinator = FglairCoordinator(hass, client, conversions)
     try:
+        await client.async_start()
         await coordinator.async_config_entry_first_refresh()
+        await coordinator.async_sync_now()
     except Exception:
         await coordinator.async_shutdown()
         await client.async_stop()
         raise
+    finally:
+        hass.data[DATA_PENDING] -= 1
 
     clients[entry.entry_id] = client
     entry.runtime_data = FglairRuntime(client, coordinator, conversions)
@@ -93,6 +94,8 @@ async def async_unload_entry(hass: HomeAssistant, entry: ConfigEntry) -> bool:
     unloaded = await hass.config_entries.async_unload_platforms(
         entry, PLATFORMS
     )
+    if not unloaded:
+        return False
     await runtime.coordinator.async_shutdown()
     await runtime.client.async_stop()
 
diff --git a/custom_components/fglair/climate.py b/custom_components/fglair/climate.py
index a35452a..e4fb6d1 100644
--- a/custom_components/fglair/climate.py
+++ b/custom_components/fglair/climate.py
@@ -43,10 +43,8 @@ async def async_setup_entry(hass, entry, async_add_entities) -> None:
 
 
 class FglairClimate(FglairEntity, ClimateEntity):
-    _attr_translation_key = "climate"
     _attr_name = None
     _attr_temperature_unit = UnitOfTemperature.CELSIUS
-    _enable_turn_on_off_backwards_compat = False
 
     def __init__(self, coordinator: FglairCoordinator) -> None:
         super().__init__(coordinator, "climate", "climate")
@@ -105,6 +103,7 @@ class FglairClimate(FglairEntity, ClimateEntity):
             features |= ClimateEntityFeature.SWING_MODE
         if self._horizontal_swing_supported():
             features |= ClimateEntityFeature.SWING_HORIZONTAL_MODE
+        features |= ClimateEntityFeature.TURN_ON | ClimateEntityFeature.TURN_OFF
         return features
 
     @property
@@ -119,10 +118,9 @@ class FglairClimate(FglairEntity, ClimateEntity):
         if value == OPERATION_MODE_OFF:
             return HVACMode.OFF
         if value == OPERATION_MODE_ON:
-            if self._last_hvac_mode is not None:
-                return self._last_hvac_mode
-            available = [mode for mode in self._hvac_modes() if mode != HVACMode.OFF]
-            return available[0] if available else HVACMode.AUTO
+            # Режим включения (1) не несёт информации о режиме: до первого
+            # явного режима состояние неизвестно.
+            return self._last_hvac_mode
         return HVAC_VALUE_TO_MODE.get(value)
 
     @property
@@ -212,6 +210,11 @@ class FglairClimate(FglairEntity, ClimateEntity):
             [(Prop.OPERATION_MODE, OPERATION_MODE_ON)]
         )
 
+    async def async_turn_off(self) -> None:
+        await self.coordinator.async_write(
+            [(Prop.OPERATION_MODE, OPERATION_MODE_OFF)]
+        )
+
     async def async_set_temperature(self, **kwargs: Any) -> None:
         temperature = kwargs.get(ATTR_TEMPERATURE)
         if temperature is None:
diff --git a/custom_components/fglair/config_flow.py b/custom_components/fglair/config_flow.py
index edd6844..e67ecfc 100644
--- a/custom_components/fglair/config_flow.py
+++ b/custom_components/fglair/config_flow.py
@@ -410,8 +410,6 @@ class FglairConfigFlow(ConfigFlow, domain=DOMAIN):
             step = int(round(float(user_input[CONF_TEMP_STEP]) * 10))
             if temp_min >= temp_max:
                 errors["base"] = "invalid_range"
-            elif step <= 0:
-                errors["base"] = "invalid_range"
             else:
                 data[CONF_TEMPLATE] = template.name
                 data[CONF_TEMP_STEP] = step
@@ -429,19 +427,20 @@ class FglairConfigFlow(ConfigFlow, domain=DOMAIN):
                     template.name, temp_min, temp_max, step,
                 )
                 return self._create_entry(data)
-        schema = _preview_schema(data)
+        selected = str(data.get(CONF_TEMPLATE, Template.A.name))
+        if user_input and user_input.get(CONF_TEMPLATE) in Template.__members__:
+            selected = str(user_input[CONF_TEMPLATE])
         if user_input is None:
-            user_input = {
-                CONF_TEMPLATE: data.get(CONF_TEMPLATE, Template.A.name),
-            }
+            user_input = {CONF_TEMPLATE: selected}
         return self.async_show_form(
             step_id="preview",
-            data_schema=self.add_suggested_values_to_schema(schema, user_input),
+            data_schema=self.add_suggested_values_to_schema(
+                _preview_schema(data), user_input
+            ),
             errors=errors,
             description_placeholders={
                 "preview": _preview_text(
-                    Template[str(data.get(CONF_TEMPLATE, "A"))],
-                    self._trial_properties,
+                    Template[selected], self._trial_properties
                 )
             },
         )
diff --git a/custom_components/fglair/const.py b/custom_components/fglair/const.py
index 8b93763..b1beeff 100644
--- a/custom_components/fglair/const.py
+++ b/custom_components/fglair/const.py
@@ -121,6 +121,7 @@ OP_STATUS_BITS: dict[str, int] = {
     "pump_down": 29,
     "check_operation": 30,
     "simultaneous": 25,
+    "different_modes": 21,
 }
 
 # Уставка: фактические ограничения бытового прибора (PROTOCOL §8.3 [LEGACY]);
diff --git a/custom_components/fglair/coordinator.py b/custom_components/fglair/coordinator.py
index 82883f4..6e95ed4 100644
--- a/custom_components/fglair/coordinator.py
+++ b/custom_components/fglair/coordinator.py
@@ -7,6 +7,7 @@ from dataclasses import dataclass, field, replace
 from typing import Optional
 
 from homeassistant.core import HomeAssistant, callback
+from homeassistant.exceptions import HomeAssistantError
 from homeassistant.helpers.update_coordinator import DataUpdateCoordinator
 
 from pyfglair import Error, Prop, PropertyEvent, State, Template, Value, ValueKind
@@ -93,10 +94,34 @@ class FglairCoordinator(DataUpdateCoordinator[FglairData]):
             available=state in AVAILABLE_STATES,
         )
         self.async_set_updated_data(self.data)
-        if state == State.ONLINE and not self._synced and self._sync_task is None:
+        if state == State.ONLINE:
+            if not self._synced and self._sync_task is None:
+                self._sync_task = self.hass.async_create_task(
+                    self._async_initial_sync()
+                )
+        else:
+            # После разрыва при следующем ONLINE нужна повторная синхронизация.
+            self._synced = False
+
+    async def async_sync_now(self) -> None:
+        """Гарантирует первичный GET-батч (если уже online)."""
+        if self._sync_task is not None:
+            await self._sync_task
+        elif self.client.state == State.ONLINE and not self._synced:
             self._sync_task = self.hass.async_create_task(
                 self._async_initial_sync()
             )
+            await self._sync_task
+        # Снимок создавался до ONLINE: обновляем состояние/доступность из
+        # актуального состояния клиента (значения приходят событиями).
+        state = self.client.state
+        self.data = replace(
+            self.data,
+            state=state,
+            last_error=self.client.last_error,
+            available=state in AVAILABLE_STATES,
+        )
+        self.async_set_updated_data(self.data)
 
     @callback
     def _on_property(self, event: PropertyEvent) -> None:
@@ -127,7 +152,11 @@ class FglairCoordinator(DataUpdateCoordinator[FglairData]):
         """Одно действие пользователя — один batch_commit()."""
         if not updates:
             return
-        await self.hass.async_add_executor_job(self._write, updates)
+        ok = await self.hass.async_add_executor_job(self._write, updates)
+        if not ok:
+            raise HomeAssistantError(
+                "FGLair: команда не отправлена (сессия недоступна)"
+            )
         values = dict(self.data.values)
         for prop, _ in updates:
             value = self.client.cached(prop)
@@ -136,11 +165,16 @@ class FglairCoordinator(DataUpdateCoordinator[FglairData]):
         self.data = replace(self.data, values=values)
         self.async_set_updated_data(self.data)
 
-    def _write(self, updates: list[tuple[Prop, int]]) -> None:
-        self.client.batch_begin()
+    def _write(self, updates: list[tuple[Prop, int]]) -> bool:
+        if not self.client.batch_begin():
+            return False
+        ok = True
         for prop, value in updates:
-            self.client.set_int(prop, value)
-        self.client.batch_commit()
+            if not self.client.set_int(prop, value):
+                ok = False
+        if not self.client.batch_commit():
+            ok = False
+        return ok
 
     async def async_shutdown(self) -> None:
         for unsub in self._unsubs:
diff --git a/custom_components/fglair/entity.py b/custom_components/fglair/entity.py
index a1c64db..d102545 100644
--- a/custom_components/fglair/entity.py
+++ b/custom_components/fglair/entity.py
@@ -58,7 +58,8 @@ class FglairEntity(CoordinatorEntity[FglairCoordinator]):
 
     def capability(self, bit: int) -> Optional[bool]:
         caps = self.capabilities()
-        if caps is None:
+        if not caps:
+            # 0/None: возможностей ещё не сообщили — не фильтруем.
             return None
         return bool(caps & (1 << bit))
 
diff --git a/custom_components/fglair/overrides.py b/custom_components/fglair/overrides.py
index e57e53f..24c760c 100644
--- a/custom_components/fglair/overrides.py
+++ b/custom_components/fglair/overrides.py
@@ -12,7 +12,7 @@ from dataclasses import dataclass
 from typing import Any, Mapping, Optional
 
 from pyfglair import Prop, Template
-from pyfglair.templates import convert_from_input, convert_to_display
+from pyfglair.templates import convert_from_input, convert_to_display, prop_info
 
 from .const import (
     CONF_OVERRIDES,
@@ -112,22 +112,61 @@ class ConversionSet:
         raw = convert_from_input(self.template, prop, api_value)
         return override.to_display(raw)
 
-    def from_display(self, prop: Prop, display: int) -> int:
-        """Отображаемое значение → API-значение для set_int()."""
+    def raw_range(self, prop: Prop) -> Optional[tuple[int, int]]:
+        """raw-диапазон протокольной таблицы шаблона (None — не задан)."""
+        info = prop_info(self.template, prop)
+        if info is None or info.raw_min is None or info.raw_max is None:
+            return None
+        return (min(info.raw_min, info.raw_max), max(info.raw_min, info.raw_max))
+
+    def _display_of_raw(self, prop: Prop, raw: int) -> int:
         override = self.override(prop)
         if override.identity:
-            return display
-        raw = override.from_display(display)
+            return convert_to_display(self.template, prop, raw)
+        return override.to_display(raw)
+
+    def from_display(self, prop: Prop, display: int) -> int:
+        """Отображаемое значение → API-значение для set_int().
+
+        raw клампится по таблице шаблона (ядро тоже клампит — не отдаём
+        молча команду за пределами достижимого).
+        """
+        override = self.override(prop)
+        raw = display if override.identity else override.from_display(display)
+        raw_range = self.raw_range(prop)
+        if raw_range is not None:
+            raw = max(raw_range[0], min(raw_range[1], raw))
+        if override.identity:
+            return raw
         return convert_to_display(self.template, prop, raw)
 
     def clamp(self, prop: Prop, display: int) -> int:
-        return self.override(prop).clamp(display)
+        bounds = self.range(prop)
+        if bounds is None:
+            return display
+        return max(bounds[0], min(bounds[1], display))
 
     def range(self, prop: Prop) -> Optional[tuple[int, int]]:
+        """Достижимый диапазон display: override ∩ таблица шаблона."""
         override = self.override(prop)
-        if override.min_value is None or override.max_value is None:
+        low = override.min_value
+        high = override.max_value
+        if prop == Prop.ADJUST_TEMPERATURE:
+            # Фактические ограничения прибора (PROTOCOL §8.3), если
+            # пользователь не задал свои.
+            low = TEMP_MIN_TENTHS if low is None else low
+            high = TEMP_MAX_TENTHS if high is None else high
+        raw_range = self.raw_range(prop)
+        if raw_range is not None:
+            raw_low = self._display_of_raw(prop, raw_range[0])
+            raw_high = self._display_of_raw(prop, raw_range[1])
+            if raw_low > raw_high:
+                raw_low, raw_high = raw_high, raw_low
+            low = raw_low if low is None else max(low, raw_low)
+            high = raw_high if high is None else min(high, raw_high)
+        if low is None or high is None:
             return None
-        return (override.min_value, override.max_value)
+        return (low, high)
 
     def temperature_range(self) -> tuple[int, int]:
         return self.range(Prop.ADJUST_TEMPERATURE) or (
diff --git a/custom_components/fglair/strings.json b/custom_components/fglair/strings.json
index 0c84d6d..7bfd348 100644
--- a/custom_components/fglair/strings.json
+++ b/custom_components/fglair/strings.json
@@ -65,9 +65,9 @@
           "temp_offset": "Conversion offset (0.1 °C)"
         },
         "data_description": {
-          "temp_num": "display = raw × num / den + offset (raw in API units, 0.1 °C)",
-          "temp_den": "display = raw × num / den + offset (raw in API units, 0.1 °C)",
-          "temp_offset": "display = raw × num / den + offset (raw in API units, 0.1 °C)"
+          "temp_num": "display = raw × num / den + offset; raw is the protocol value (setpoint: 0.1 °C)",
+          "temp_den": "display = raw × num / den + offset; raw is the protocol value (setpoint: 0.1 °C)",
+          "temp_offset": "display = raw × num / den + offset; raw is the protocol value (setpoint: 0.1 °C)"
         }
       }
     },
@@ -81,7 +81,7 @@
       "no_devices": "No devices found in the account",
       "unknown": "Unexpected error",
       "properties_missing": "The device connected but did not report its base properties",
-      "invalid_range": "Minimum must be less than maximum, step must be positive"
+      "invalid_range": "Minimum must be less than maximum"
     },
     "abort": {
       "already_configured": "This device is already configured",
@@ -94,9 +94,6 @@
     }
   },
   "entity": {
-    "climate": {
-      "name": "Air conditioner"
-    },
     "sensor": {
       "room_temperature": {
         "name": "Room temperature"
@@ -137,6 +134,9 @@
       },
       "simultaneous": {
         "name": "Simultaneous operation"
+      },
+      "different_modes": {
+        "name": "Freeze/oil/other modes (template B)"
       }
     },
     "switch": {
diff --git a/custom_components/fglair/switch.py b/custom_components/fglair/switch.py
index 18d1cf9..3a4e381 100644
--- a/custom_components/fglair/switch.py
+++ b/custom_components/fglair/switch.py
@@ -55,6 +55,6 @@ def _capability_supported(
     if bit is None:
         return True
     caps = coordinator.data.values.get(Prop.DEVICE_CAPABILITIES)
-    if caps is None:
+    if caps is None or not caps.int_value:
         return True
     return bool(caps.int_value & (1 << bit))
diff --git a/custom_components/fglair/translations/en.json b/custom_components/fglair/translations/en.json
index 0c84d6d..7bfd348 100644
--- a/custom_components/fglair/translations/en.json
+++ b/custom_components/fglair/translations/en.json
@@ -65,9 +65,9 @@
           "temp_offset": "Conversion offset (0.1 °C)"
         },
         "data_description": {
-          "temp_num": "display = raw × num / den + offset (raw in API units, 0.1 °C)",
-          "temp_den": "display = raw × num / den + offset (raw in API units, 0.1 °C)",
-          "temp_offset": "display = raw × num / den + offset (raw in API units, 0.1 °C)"
+          "temp_num": "display = raw × num / den + offset; raw is the protocol value (setpoint: 0.1 °C)",
+          "temp_den": "display = raw × num / den + offset; raw is the protocol value (setpoint: 0.1 °C)",
+          "temp_offset": "display = raw × num / den + offset; raw is the protocol value (setpoint: 0.1 °C)"
         }
       }
     },
@@ -81,7 +81,7 @@
       "no_devices": "No devices found in the account",
       "unknown": "Unexpected error",
       "properties_missing": "The device connected but did not report its base properties",
-      "invalid_range": "Minimum must be less than maximum, step must be positive"
+      "invalid_range": "Minimum must be less than maximum"
     },
     "abort": {
       "already_configured": "This device is already configured",
@@ -94,9 +94,6 @@
     }
   },
   "entity": {
-    "climate": {
-      "name": "Air conditioner"
-    },
     "sensor": {
       "room_temperature": {
         "name": "Room temperature"
@@ -137,6 +134,9 @@
       },
       "simultaneous": {
         "name": "Simultaneous operation"
+      },
+      "different_modes": {
+        "name": "Freeze/oil/other modes (template B)"
       }
     },
     "switch": {
diff --git a/custom_components/fglair/translations/ru.json b/custom_components/fglair/translations/ru.json
index ce067de..f319c7b 100644
--- a/custom_components/fglair/translations/ru.json
+++ b/custom_components/fglair/translations/ru.json
@@ -65,9 +65,9 @@
           "temp_offset": "Смещение конверсии (0,1 °C)"
         },
         "data_description": {
-          "temp_num": "display = raw × num / den + offset (raw в единицах API, 0,1 °C)",
-          "temp_den": "display = raw × num / den + offset (raw в единицах API, 0,1 °C)",
-          "temp_offset": "display = raw × num / den + offset (raw в единицах API, 0,1 °C)"
+          "temp_num": "display = raw × num / den + offset; raw — протокольное значение (уставка — 0,1 °C)",
+          "temp_den": "display = raw × num / den + offset; raw — протокольное значение (уставка — 0,1 °C)",
+          "temp_offset": "display = raw × num / den + offset; raw — протокольное значение (уставка — 0,1 °C)"
         }
       }
     },
@@ -81,7 +81,7 @@
       "no_devices": "В аккаунте не найдено устройств",
       "unknown": "Неожиданная ошибка",
       "properties_missing": "Устройство подключилось, но не отдало базовые свойства",
-      "invalid_range": "Минимум должен быть меньше максимума, шаг — положительным"
+      "invalid_range": "Минимум должен быть меньше максимума"
     },
     "abort": {
       "already_configured": "Устройство уже настроено",
@@ -94,9 +94,6 @@
     }
   },
   "entity": {
-    "climate": {
-      "name": "Кондиционер"
-    },
     "sensor": {
       "room_temperature": {
         "name": "Температура в помещении"
@@ -137,6 +134,9 @@
       },
       "simultaneous": {
         "name": "Одновременные операции"
+      },
+      "different_modes": {
+        "name": "Разморозка/масло/прочие режимы (шаблон B)"
       }
     },
     "switch": {
diff --git a/pyfglair/templates.py b/pyfglair/templates.py
index ede28d5..910d360 100644
--- a/pyfglair/templates.py
+++ b/pyfglair/templates.py
@@ -3,6 +3,7 @@ src/aircon/tables.cpp; дублей в Python нет)."""
 from __future__ import annotations
 
 from dataclasses import dataclass
+from functools import lru_cache
 from typing import Optional, Tuple
 
 from ._cffi import ffi, lib
@@ -36,6 +37,7 @@ def detect(oem_model: Optional[str]) -> Optional[Template]:
     return Template(result)
 
 
+@lru_cache(maxsize=None)
 def template_info(template: Template) -> Tuple[PropertyInfo, ...]:
     """Все свойства шаблона (порядок констант Prop)."""
     out = []
@@ -67,6 +69,7 @@ def template_info(template: Template) -> Tuple[PropertyInfo, ...]:
     return tuple(out)
 
 
+@lru_cache(maxsize=None)
 def prop_info(template: Template, prop: Prop) -> Optional[PropertyInfo]:
     for info in template_info(template):
         if info.prop == prop:
diff --git a/tests/ayla/mock_ac.py b/tests/ayla/mock_ac.py
index 6aa2e11..6eda1c9 100644
--- a/tests/ayla/mock_ac.py
+++ b/tests/ayla/mock_ac.py
@@ -292,6 +292,9 @@ class Mock:
                     cmd = c.get("cmd", {})
                     if cmd.get("method") == "DELETE":
                         print("DELETE", flush=True)
+                        # Слот освобождён: следующая сессия должна получить KE.
+                        self.crypto = None
+                        self.active = False
                         return
                     res = cmd.get("resource", "")
                     name = res.split("name=")[-1]
diff --git a/tests/components/fglair/test_config_flow.py b/tests/components/fglair/test_config_flow.py
index b35f150..4ba7732 100644
--- a/tests/components/fglair/test_config_flow.py
+++ b/tests/components/fglair/test_config_flow.py
@@ -141,10 +141,18 @@ async def test_preview_invalid_range(hass: HomeAssistant):
         result = await _select(hass, result["flow_id"], "manual")
         result = await _configure(hass, result["flow_id"], MANUAL_INPUT)
         result = await _configure(
-            hass, result["flow_id"], {**PREVIEW_INPUT, "temp_min": 30.0, "temp_max": 16.0}
+            hass,
+            result["flow_id"],
+            {
+                **PREVIEW_INPUT,
+                "template": "B",
+                "temp_min": 30.0,
+                "temp_max": 16.0,
+            },
         )
         assert result["type"] == "form"
         assert result["errors"] == {"base": "invalid_range"}
+        assert "Template: B" in result["description_placeholders"]["preview"]
         result = await _configure(hass, result["flow_id"], PREVIEW_INPUT)
     assert result["type"] == "create_entry"
 
diff --git a/tests/components/fglair/test_entities.py b/tests/components/fglair/test_entities.py
index b17b628..8cc4e6a 100644
--- a/tests/components/fglair/test_entities.py
+++ b/tests/components/fglair/test_entities.py
@@ -185,9 +185,33 @@ async def test_entity_commands(hass: HomeAssistant, mock_ac, socket_enabled):
     )
     assert proc.wait_line("CMD SET economy_mode=True", 10)
 
+    await hass.services.async_call(
+        "climate", "turn_off", {"entity_id": climate_id}, blocking=True
+    )
+    assert proc.wait_line("CMD SET operation_mode=0", 10)
+    await hass.services.async_call(
+        "climate", "turn_on", {"entity_id": climate_id}, blocking=True
+    )
+    assert proc.wait_line("CMD SET operation_mode=1", 10)
+
     assert await hass.config_entries.async_unload(entry.entry_id)
 
 
+async def test_reload_online(hass: HomeAssistant, mock_ac, socket_enabled):
+    """После unload тот же прибор снова поднимается до ONLINE."""
+    proc = mock_ac(MOCK_SETTINGS)
+    entry = await _setup_entry(hass, proc.port)
+    runtime = entry.runtime_data
+    await _wait_for(lambda: runtime.client.state == State.ONLINE)
+    assert await hass.config_entries.async_unload(entry.entry_id)
+    await hass.async_block_till_done()
+
+    assert await hass.config_entries.async_setup(entry.entry_id)
+    await hass.async_block_till_done()
+    runtime = entry.runtime_data
+    await _wait_for(lambda: runtime.client.state == State.ONLINE)
+
+
 RESTRICTED_SETTINGS = [
     "--set", "operation_mode=3",
     "--set", "fan_speed=4",
@@ -258,6 +282,7 @@ async def test_manual_conversion_applied(
     await _wait_for(
         lambda: climate_id and hass.states.get(climate_id) is not None
         and hass.states.get(climate_id).state == "heat"
+        and hass.states.get(climate_id).attributes["temperature"] == 22.5
     )
     assert hass.states.get(climate_id).attributes["temperature"] == 22.5
     assert hass.states.get(climate_id).attributes["min_temp"] == 17.0
diff --git a/tests/components/fglair/test_overrides.py b/tests/components/fglair/test_overrides.py
index e83fa47..8843b7c 100644
--- a/tests/components/fglair/test_overrides.py
+++ b/tests/components/fglair/test_overrides.py
@@ -36,6 +36,20 @@ def test_linear_override_scaled():
     assert conversions.from_display(Prop.ADJUST_TEMPERATURE, 100) == 200
 
 
+def test_scaled_override_clamped_to_table():
+    """display = raw/2: таблица A -100..450 → достижимо -50..225."""
+    override = LinearOverride(
+        num=1, den=2, offset=0, min_value=160, max_value=300
+    )
+    conversions = ConversionSet(
+        Template.A, {Prop.ADJUST_TEMPERATURE: override}, 5
+    )
+    assert conversions.temperature_range() == (160, 225)
+    assert conversions.clamp(Prop.ADJUST_TEMPERATURE, 250) == 225
+    assert conversions.from_display(Prop.ADJUST_TEMPERATURE, 250) == 450
+    assert conversions.from_display(Prop.ADJUST_TEMPERATURE, 225) == 450
+
+
 def test_from_entry_parses_spec():
     conversions = ConversionSet.from_entry(
         {
@@ -54,7 +68,9 @@ def test_from_entry_parses_spec():
     )
     assert conversions.template == Template.B
     assert conversions.step_tenths == 10
-    assert conversions.temperature_range() == (170, 280)
+    # display = raw/2 + 5: таблица -100..450 → -45..230, override 170..280
+    # → достижимо 170..230.
+    assert conversions.temperature_range() == (170, 230)
     override = conversions.override(Prop.ADJUST_TEMPERATURE)
     assert (override.num, override.den, override.offset) == (2, 4, 5)
     assert conversions.override(Prop.FAN_SPEED).identity
diff --git a/tests/pyfglair/test_templates.py b/tests/pyfglair/test_templates.py
index 108a4c5..2322e2a 100644
--- a/tests/pyfglair/test_templates.py
+++ b/tests/pyfglair/test_templates.py
@@ -9,6 +9,7 @@ from pyfglair import (
     convert_from_input,
     convert_to_display,
     detect,
+    prop_info,
     template_info,
 )
 from pyfglair._cffi import ffi, lib
@@ -61,6 +62,13 @@ def test_conversions():
     assert convert_from_input(Template.A, Prop.ADJUST_TEMPERATURE, 220) == 220
 
 
+def test_template_info_is_cached():
+    assert template_info(Template.A) is template_info(Template.A)
+    assert prop_info(Template.A, Prop.FAN_SPEED) is prop_info(
+        Template.A, Prop.FAN_SPEED
+    )
+
+
 def test_api_range():
     assert api_range(Template.A, Prop.DISPLAY_TEMPERATURE) == (-100, 450)
     assert api_range(Template.A, Prop.OPERATION_MODE) == (0, 6)