01 · AHU

Supply and exhaust ventilation

AHU · 01

Supply-exhaust ventilation is not “two fans at opposite ends of the building”. It is a balanced AHU: what you take from outside you throw away, filtered, heated, often with heat recovery. Aurum Prodest selects supply-only, extract-only or a full unit and commissions it with a balancing report.

Extract-only pulls toilet smells and stair dust; supply-only pressurises neighbours. A proper AHU holds near-neutral or slight positive pressure in clean zones. We explain that on survey, not after tenant complaints.

Scheme: supply, extract or full AHU
Heat recovery where it pays
Heater, freeze protection, controls

Book an engineer visit Call +998 93 389 58 59

By the numbers

12+

years on market

500+

projects delivered

50+

specialists

5yr

warranty

Project photos

3 photos

About the service

The unit is selected on flow, external pressure, filter class and Tashkent climate: summer dust, winter coil. Heat recovery (rotary or plate) belongs where run-hours are long. Kitchen grease never shares the office recuperator.

Controls are freeze protection, filter dirty alarms, occupancy clocks and fire shutdown — not “max 24/7 or off at the breaker”. We program day / night / setback.

Duct velocities: 5–8 m/s in mains, quieter at grilles. Flex only at the fan. Silencers, non-return and fire dampers are in the design. The AHU needs a frame, isolation, drain and 600 mm filter access.

Balancing is mandatory. Handover: unit passport, drawings, filter schedule. 5-year workmanship warranty. We also retrofit existing duct if sections are still healthy.

Where we apply this

Office ventilation

Office ventilation is sized from headcount, equipment heat and working hours — not from floor area slogans.

Restaurant and food-service ventilation

Restaurant ventilation is two jobs under one roof: pull heat and grease off the line, keep the dining room comfortable without kitchen smell.

Workshop and factory ventilation

Workshop ventilation is sized from process emissions, not from floor-area myths.

Warehouse ventilation

Warehouse ventilation protects goods and people, not “air under the ridge for its own sake”.

Ventilation design

Ventilation design saves site rework: air change and pressure first, then duct sizes and purchase lists.

Brands

Ventilation succeeds on airflow design and ducts more than brand stars. Pros/cons of units we install often.

A brief comparison by class and use case — we match equipment to budget and site

Swipe the table sideways →

Brand	Class	Pros	Cons
Systemair	Mid-range	Predictable AHU selection and kits	Pricier than pure value brands
Salda	Mid-range	European mid for offices and F&B	Not the cheapest entry
Östberg	Mid-range	Quality fans, long life	Narrower “boxed AHU” range
Remak	Mid-range	Central units for large networks	Heavier specs and cost
Vents	Best value	Best value for typical networks	Less premium build reserve
Blauberg	Best value	Accessible AHUs and light-commercial kits	Weaker mid on heavy industrial duty

Specs and standards

Balance	supply ≈ extract within design tolerance
Filters	F7 typical, F9 optional
Recovery	rotary / plate by circuit
Heater	water or electric + freeze protection
Service access	from 600 mm to filters
Work warranty	5 years