রুমের মাপ অনুযায়ী সঠিক এসি (AC) নির্বাচনের গাইড: AC Tonnage Calculator
14 March 2026
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আপনার রুমের জন্য ১.৫ টন নাকি ২ টন এসি লাগবে? জানুন AC Tonnage ক্যালকুলেশন করার সহজ নিয়ম এবং সঠিক এসি কেনার প্রফেশনাল টিপস।
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Understanding VRF Systems: The Efficient Climate Control in Dhaka
8 March 2026
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A VRF system is a highly sophisticated version of a multi-split air conditioning system. Unlike traditional systems that are either “on” or “off,” VRF technology allows a single outdoor unit to connect to multiple indoor units (often dozens) and precisely modulate the amount of refrigerant flowing to each one.
AC Gas Refill Guide 2026: Costs, Safety Standards, and Expert Maintenance
5 March 2026
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Get the latest 2025 AC gas refill prices in Dhaka. Learn why your AC leaks, the difference between R-22 and R-32, and how Sunlit Pvt. Ltd. ensures safety.
AC Hanging Charge in Dhaka: What It Really Means, When It Applies, and Why It Costs More
2 March 2026
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AC hanging charge in Dhaka is the additional cost applied when AC outdoor units must be serviced from height using rope access or safety harnesses, typically above the 8th floor, due to higher risk, manpower, and safety requirements.
এসি কীভাবে ঘর ঠান্ডা করে? (HVAC) কাজ করার সহজ নিয়ম ও টেকনিক্যাল গাইড
28 February 2026
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এসি আসলে বাতাস ঠান্ডা তৈরি করে না। এটি ঘরের গরম বাতাসের তাপ শোষণ করে আউটডোর ইউনিট দিয়ে বাইরে বের করে দেয়। ইনডোর ইউনিটের Evaporator Coil তাপ নেয়, Compressor সেই তাপযুক্ত গ্যাসকে চাপে গরম করে, Condenser বাইরে তাপ ছাড়ে, আর Expansion Valve গ্যাসকে আবার ঠান্ডা করে ইনডোর ইউনিটে পাঠায়। এই চক্র চলতে থাকে যতক্ষণ না রুম নির্ধারিত তাপমাত্রায় পৌঁছায়।
The Dhaka Guide to Slashing AC Electricity Bills Without Sacrificing Comfort
25 February 2026
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To reduce AC electricity bills in Dhaka (2026), switch to Inverter AC technology, set your thermostat at 24°C–26°C, follow BNBC 2020 thermal insulation standards, and service your unit before summer.
Authentic AC Maintenance Protocols vs. AC gas refill scam in Dhaka
18 February 2026
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An air conditioner does not consume gas. Refrigerant circulates in a sealed closed-loop system.
If gas is genuinely low, there must be a physical leak.
Advanced AC Service and Maintenance in Dhaka : 40+ Years of Professional HVAC Expertise
12 February 2026
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Stop the break-fix cycle. Learn Sunlit’s technical approach to HVAC preventative maintenance in Dhaka, focusing on advanced protocols like Inverter checks, Dhaka Dust Mitigation, and Energy Audits to maximize asset longevity and operational efficiency
Research Paper: Optimization of Refrigerant Charging and System Evacuation in HVAC Systems
7 February 2026
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This paper investigates the critical procedures of system evacuation and refrigerant charging (commonly known as AC gas filling). It explores the thermodynamic necessity of removing non-condensables and moisture to ensure system longevity and efficiency. The study outlines the technical workflow, diagnostic indicators for recharging, and the mechanical implications of improper servicing.
The Engineering Legacy of Comfort: Why Sunlit Pvt. Ltd. Defines the Gold Standard for HVAC in Dhaka
2 February 2026
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Sunlit Pvt. Ltd. bridges the gap between raw construction power and delicate mechanical precision, offering a “one-window” engineering solution that safeguards your investment.
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