Air Handling Units (AHUs)

1,400 to 120,000 CMH, built to the project

Airflow range: 1,400 – 120,000 CMH
Ambient rating: 50 °C tropical
Cooling medium: Chilled water or DX
Fan types: Forward, backward, EC plug

AHRI Certified Coil selection
ISO 9001 Quality management
AMCA Air performance

Overview

Every Expert Middle East air handling unit is engineered against the project's own airflow, external static pressure and coil duty. Casings are double-skin sandwich panel construction on a thermally broken frame, assembled in our own factories and pressure-tested before dispatch.

Coil selection runs on AHRI-certified Unilab software, and every coil is hydrostatically tested before it enters a unit. That combination — certified selection software plus in-house testing — is what lets a consultant sign off performance figures without a site surprise.

The starting point is a standard casing range of 21 sizes, EX-014 to EX-830, each named for its airflow in hundreds of CMH at a coil face velocity of 2.5 m/s, from 770 × 580 mm to 4,540 × 2,540 mm in section. Above it, casings are engineered to the duty, up to 120,000 CMH in a single unit.

Configurations cover horizontal, vertical, double-deck and hygienic arrangements, so the unit fits the plant room that exists rather than the one the drawing assumed.

Configurations & options

Horizontal
Vertical
Double-deck
Hygienic (healthcare & pharmaceutical)

Materials & finishes

Pre-coated galvanized steel casing
Stainless steel 304 internals (hygienic units)
Aluminium profile frame with thermal break
Polyurethane-filled sandwich panels

Option

Evaporative Cooling Units (Air Washers)

Water as the refrigerant, up to 120,000 CMH

In a dry climate, water does the cooling. An air washer saturates the air stream through spray nozzles or cooling pads instead of running a refrigeration circuit, which is what makes its energy consumption very low.

Air washers are built to the same 120,000 CMH ceiling as our air handling units. For hybrid operation a chilled water or DX coil is added after the wet section, and an electric heater makes the same unit serve all year round.

Airflow: Up to 120,000 CMH
Wet section: Spray nozzles or cooling pads
Hybrid: Chilled water or DX coil
Heating: Electric heater

Technical specifications

Performance

Airflow: 1,400 – 120,000 CMH
Standard casings: 21 sizes, EX-014 to EX-830
Sizing basis: 2.5 m/s coil face velocity
Design ambient: Up to 50 °C, tropical operation
Refrigerants (DX): R-22, R-407C, R-410A
Coil selection: AHRI-certified Unilab software

Casing

Construction: Double-skin sandwich panel, thermally broken frame
Panel thickness: 25, 42, 43 or 62 mm (hygienic: 43 or 62 mm)
Insulation: Polyurethane, 40 or 68 kg/m³; fibreglass or rock wool
Sheet metal: 0.6 – 1.5 mm, galvanized or stainless steel
Outer finish: Electrostatic paint: blue, grey or white

Components

Fans: Forward or backward curved centrifugal, or plug fan
Dampers: Extruded aluminium, opposed blade, gear driven
Coils: Copper tube, 1 – 8 rows, on slide-out rails
Condensate pan: Rustproof
Filters: G2 – G4 panel, F5 – F9 bag, carbon, HEPA
Humidifier: Steam or evaporative, with droplet eliminators

Testing

Coil testing: Hydrostatic pressure test on every coil
Casing leakage: Tested before dispatch

Certifications & standards

What each mark on this product means, who issues it and how it applies here.

All certifications & standards

AHRI Certified

Coil Selection (Unilab)

Issued by Air-Conditioning, Heating, and Refrigeration Institute (AHRI), USA

What it is

AHRI runs independent performance certification for HVAC equipment and selection software. Products are tested in third-party laboratories, and a certified rating has to match the measured result within set tolerances.

On this product

The coils are selected on AHRI-certified Unilab software, so the capacity quoted on your submittal is the capacity the coil delivers when it is tested.
ISO 9001

Quality Management Systems

Issued by International Organization for Standardization (ISO)

What it is

The international standard for quality management systems. A certified company works to documented processes, checks its output against them, records what it finds and corrects the cause of any fault, and is audited on all of it by an independent certification body.

On this product

Designed, fabricated and inspected under our certified ISO 9001 quality system: the same documented process for every unit, whichever of our factories builds it.
AMCA

Air Movement & Control Compliance

Issued by Air Movement and Control Association International (AMCA)

What it is

AMCA publishes the laboratory test methods the industry uses to rate air-moving and air-control products (fans, dampers, louvres and air curtains) for airflow, pressure, leakage and sound, so figures from different makers can be compared on the same basis.

On this product

Air performance data for this unit is established to AMCA test methods, so it compares like for like with other rated equipment.

Do you supply fan sections on their own?

Yes. A fan section is built as part of an air handling unit or as a unit on its own — belt-driven centrifugal, backward or forward curved, at a single speed or on a variable speed drive.

Do you manufacture evaporative cooling units (air washers)?

Yes, to 120,000 CMH, using water as the refrigerant for dry climates, with an optional chilled water coil, DX coil or electric heater.

What is the maximum airflow you manufacture?

120,000 CMH in a single unit. Larger duties are delivered as multiple units in parallel, sized against the plant room and the available access route.

Can the unit run in Gulf summer conditions?

Yes. Units are rated for 50 °C tropical ambient as standard, which is what the Oman factory was engineered around.

Which filter classes can the unit carry?

G2 – G4 panel pre-filters, F5 – F9 bag filters or F5 – F8 rigid filters as the second stage, activated carbon for odour, and an absolute (HEPA) section for hygienic units. Bag filters also serve as pre-filters ahead of the HEPA stage in hygienic units.

How do I read an EME AHU model code?

Take AHU R 14 L 1 H 1 1: R is a DX cooling coil (W for chilled water), 14 is the airflow divided by 100 (1,400 CMH), L puts the coil header on the left (R on the right), then heater 1 or 0, heater type E electric or C heating coil, humidifier 1 or 0 and dehumidifier 1 or 0.

Products that work alongside it, then the rest of Central HVAC Units & Equipment.

Explore the family

Air Handling Units (AHUs)

Overview

Configurations & options

Materials & finishes

Evaporative Cooling Units (Air Washers)