Air cooled chiller on a steel frame on a flat roof

Representative photo. Your order is made to your specification by a verified seller. Photo: “Air Cooled Liquid Chiller” by Saud, CC BY-SA 4.0.

Air cooled chiller supplier in Bangladesh

Use Roptan as your air cooled chiller supplier in Bangladesh. Tell us the load in TR or kW, the water temperatures and where the unit will stand: we source it from a verified seller, check the rating at your heat and deliver.

Verified sellers
Checked before it ships
Delivered by Roptan

Prefer to deal with suppliers yourself? Post it on the requirement board

Buying air cooled chillers in Bangladesh

An air cooled chiller is a factory-made package that cools water and throws the heat straight into outdoor air through finned coils and fans. It needs no cooling tower, condenser water pumps or condenser piping, so it stands outdoors on a roof or plinth. It suits sites where make-up water is poor or scarce, or where a tower will not fit.

An air cooled chiller supplier in Bangladesh should quote the machine at your site, not at a mild test point. Roptan sends one specification to verified sellers, asks each for capacity and power at your hottest roof air and compares the quotes item by item. We deliver the unit; the seller installs and commissions it.

Kinds of air cooled chiller

Scroll compressor units

Hermetic scroll compressors that step on and off with the load, usually on smaller duties. Ask how many compressors and refrigerant circuits the model has.

Screw compressor units

Semi-hermetic screw compressors, usually for larger duties carried by one outdoor package. Ask whether a variable speed drive is offered: it raises part-load efficiency and pays back where the load varies through the day.

Modular units

Standard modules of various sizes joined to reach a larger tonnage. Choose them to install in phases as a site grows, or to keep cooling when one module is down for repair.

Evaporatively cooled units

Water is misted over the condenser coil. More efficient than a plain air cooled unit and less efficient than a water cooled one, it brings back a water supply and treatment need.

How to brief an air cooled chiller supplier in Bangladesh

Capacity at peak air: Give the duty in TR or kW (1 TR is 3.517 kW) and ask for the capacity curve at your hottest roof air. Summer highs usually reach 38 to 41 °C, with April hottest.
Water temperatures: Comfort cooling is usually rated with water returning at 12 °C and leaving at 7 °C. State your own figures: a different spread changes the water flow for the same load.
Clearance and airflow: Walls, screens and nearby plant make hot discharge air recirculate, which cuts capacity and raises power. Fix the position to the seller's clearance drawing.
Coils: Coils are usually copper tube with aluminium fins. Near the coast or in dusty industrial areas, ask for a coil protection option and safe access for cleaning.
Roof or plinth: Dhaka floods almost every year, so a ground plinth needs height, drainage and electrical gear above the likely water line. A roof needs a structural check and a rigging route.

Ratings and standards to ask for

AHRI certification: AHRI checks the published capacity, efficiency, water pressure drop and IPLV of catalogue models. Custom units and modular arrays are not certified.
EN 14511 and EN 14825:2022: The European rating basis: the 2022 parts of EN 14511 for tested capacity and efficiency, EN 14825 for part load and seasonal figures such as SEER.
EN 12102-1:2022: How the sound power of a chiller is measured. Ask for sound power to it, not a sound pressure figure at an unstated distance.
EN 378-1:2016+A1:2021 and EN 378-2:2016: Safety rules for refrigerating systems; Part 2 covers design, construction, testing, marking and documents. Ask whether the unit is built to them.

What moves the price of an air cooled chiller

Compressor type and count: scroll for smaller duties, screw for larger ones, and how many compressors share the load.
A variable speed drive adds cost and pays back only where the load varies.
The air temperature the unit must hold its capacity at: rating for Bangladesh summer usually means a larger machine.
Coil protection and low noise options, which add cost but keep output up near the sea or in dust.
Electricity over a life that can pass 25 years: the saving on a tower is spent again in power.

Lead times and delivery

Smaller catalogue chillers are sometimes held in dealers' stock abroad, which shortens the wait. Larger and special units are usually built to order, with the factory slot, sea freight to Chattogram and customs clearance on top. Coil coatings or a witnessed test add time. Roptan confirms the delivery date in the quote.

We deliver to the roof or plinth and plan the lift with you: the rigging route, the structure, the electrical capacity and the noise limit at your boundary. The seller sets the unit to its clearance drawing, connects the chilled water and commissions it. Handover usually includes the commissioning sheet, wiring diagrams, manuals and a VAT invoice (Mushak 6.3).

What we check for this order

Rating at your airWe ask every seller for capacity and power at your hottest roof air, so the offers compare at the same point.
Same efficiency boundaryWe confirm whether condenser fan power is inside each kW per TR figure before any two offers are compared.
Certified modelWhere AHRI certification is claimed, we check that the listing names the exact catalogue model quoted.
Quote scopePumps, disconnects, controls interfaces and start-up are in some quotes and not others. We compare line by line before totals.

Questions buyers ask

Why does an air cooled chiller lose capacity in hot weather?

The refrigerant must condense hotter as the outdoor air warms, so the compressor works harder for less cooling. A unit that meets the load in a mild month can fall short in April. Ask for the capacity curve at your hottest roof air and keep the coils clean.

How much space does it need around it?

Enough for the fans to draw fresh air and throw hot air away without it coming back. Nearby walls, screens and other plant cause recirculation, which cuts capacity and raises power. Fix the position to the seller's clearance drawing before the plinth or steel is built.

Is an air cooled chiller suitable near the coast?

Yes, with coil protection. Coils are usually copper tube with aluminium fins, and salt air and dust attack them and block airflow. Ask the seller for a protection option on the coil and safe access to clean it, and plan coil cleaning as routine maintenance.

Can I add capacity later?

Yes, with a modular unit. Modules of various sizes join to reach a larger tonnage, so you can install in phases and keep cooling when one module is down. AHRI certifies single catalogue models, not the array, so ask for the rating of each module.

How soon will I hear back about chillers?

Within 48 hours of a complete requirement, with a price and a delivery date. A requirement is complete when it has the capacity, where it is needed and by when.

Who do I deal with?

With Roptan, when Roptan manages the order: we buy from the verified seller and deliver to you. With the supplier directly, when you post on the requirement board and choose a quote yourself.