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url url url url
  2. Weltenzyklopädie
  3. شیر معکوس‌کننده - ویکی‌پدیا، دانشنامهٔ آزاد
شیر معکوس‌کننده - ویکی‌پدیا، دانشنامهٔ آزاد
از ویکی‌پدیا، دانشنامهٔ آزاد
یک شیر معکوس‌کننده برداشته شده از سیستم HVAC پمپ حرارتی در دست تعمیر

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عملکرد

شیر معکوس‌کننده شامل دو بخش است. بخش جریانی و بخش ساکن. برای راه‌اندازی بخش جریانی نیاز به دریافت ولتاژ ۲۴ ولتی از منبع جریان متناوب است که این ولتاژی متداول در تکنولوژی اچ‌وی‌ای‌سی به‌شمار می‌رود. این که بخش ساکن متعلق به سرمایش یا گرمایش باشد توسط سازندگان پمپ حرارتی انتخاب می‌شود. به‌طور مثال اگر سازنده پمپ حرارتی به‌طور پیش‌فرض گرمایش را برای سیستم تهویه‌ای در نظر گرفته باشد، بخش جریانی شیر معکوس‌کننده وقتی شروع به کار می‌کند که مصرف‌کننده نیاز به سرمایش داشته باشد.

شیر معکوس‌کننده در کولر گازی به' شیر برقی یا شیر چهار راه' معروف است و با ولتاژ ۲۲۰ ولت شهر کار می‌کند.

کنترل

بر اساس نوع ساختار و کارکرد پمپ حرارتی، شیر معکوس‌کننده توسط بخش کنترل یخ‌زدایی (به انگلیسی: Defrost Control) یا به‌طور مستقیم توسط ترموستات کنترل می‌شود.

جستارهای وابسته

منابع

Pusat Layanan

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