- Critical winter check
- Freeze thermostat, fresh air damper, heating valve
- Summer check
- Filter differential pressure, cooling coil, drain
- Common building types
- Hospitals, public buildings, shopping malls, sports and congress venues, factories
- Mechanical maintenance
- Fan, belt, bearing, motor, vibration
About Ankara Air Handling Unit Maintenance: Filter, Coil and Freeze Thermostat
In Ankara, air handling units carry the fresh air and air conditioning load of hospitals, public campuses, shopping malls, sports halls, meeting and congress venues and production facilities. When a unit stops in these buildings, not only comfort but also indoor air quality, and in some areas pressure regimes, are affected.
The city's cold winters pose a special risk for air handling units. With the fresh air damper open, below-zero outdoor air reaches the heating coil; if there is a problem with heating water circulation or valve control, the coil can freeze and burst within a short time. That is why, in autumn maintenance, the freeze thermostat setting and operation, damper motor closing position, heating valve and automation scenario must be tested together. In Ankara's dry winter air, the humidifier should also be checked in areas that need humidification.
In spring and summer, the dust and pollen load increases. Pre-filters fill quickly and the differential pressure of bag or fine filters rises. If filters are not replaced on time, fan energy consumption increases, airflow drops and contamination reaches the coils. In facilities where hygiene is a priority, such as hospitals, cleaning of unit interior surfaces, drain pan and tightness checks are planned in line with the institution's infection control procedures.
In many older buildings in Ankara, air handling units have been running for decades. In these units, casing insulation, door gaskets, damper mechanisms and fan bearings wear out over time. During maintenance the condition of these components is reported, and a technical opinion is provided to the institution on whether repair or renewal is needed.
Our services for Ankara Air Handling Unit Maintenance
Air handling unit maintenanceFilter replacement, fan and belt, coil and hygiene.
VentilationVentilation and exhaust systems.
Chiller maintenanceCondenser, compressor, refrigerant leak test and measured report.
Fan coil maintenanceFilters, coil, drainage; bulk maintenance by unit.
Annual maintenance contractScheduled maintenance, priority on breakdowns, single price.
Public maintenance tendersService that meets the specification, ready documents.How do we work?
We plan unit maintenance so it does not disrupt building use; in areas that must run without interruption we determine a standby unit or short shutdown scenario together with the institution. We enter filter types and sizes into the inventory and prepare the replacement schedule in advance. We respond to breakdown calls within Ankara the same day. Measurements taken and parts replaced during maintenance are recorded; in public tenders these records are reported in line with the specification. For the full checklist, see our air handling unit maintenance page.
Checklist forms for chillers, fan coils, air handling units, VRF and other equipment.See the forms
Frequently asked questions
Why does the air handling unit coil freeze in winter?
The most common causes are the fresh air damper staying open, heating water circulation stopping, or the freeze thermostat not tripping. In autumn maintenance in Ankara these three points must be tested.
When should air handling unit filters be replaced?
The decision should be based on differential pressure rather than the calendar. In Ankara, pre-filters may need to be replaced more often in spring and summer.
Do you maintain hygienic air handling units in hospitals?
Yes. We plan maintenance in line with the institution's infection control procedures and hygiene requirements, and we record the work done.
How often is the air handling unit belt replaced?
It depends on operating hours and belt condition; tension and wear are checked at every maintenance visit and the belt is replaced if needed.