HVAC maintenance for businesses

For maintenance managers, property managers and those responsible for intensively used buildings (offices, hotels, residences, schools or healthcare centres), HVAC is not something that can be left to chance. At MRS Climatización we organise preventive and corrective maintenance of HVAC equipment so that problems are picked up before they affect occupants, and every intervention is documented. We work mainly in Barcelona and its metropolitan area, and in Sabadell and the surrounding area.

What preventive maintenance includes

Tasks depend on the type of equipment, but a preventive HVAC plan typically covers:

• Cleaning or replacing filters. A clogged filter reduces airflow, increases energy use and worsens indoor air quality.
• Inspecting coils and heat exchangers, condensate trays and drains.
• Checking operating pressures, supply and return temperatures, and the electrical draw of compressors and fans.
• Inspecting electrical connections, protective devices and the condition of associated distribution boards.
• Verifying thermostats, sensors, set points and control system schedules.
• Identifying noise, vibration, corrosion or leaks that signal an impending fault.

A plan built around the building

It makes little sense to apply the same schedule to an office that only runs during working hours as to a hotel open around the clock, or to a care home where thermal comfort is part of residents' wellbeing. Each plan is therefore defined by building type, use, number of units and the criticality of each piece of equipment. A unit serving a plant room or occupied bedrooms does not carry the same priority as a split system in a rarely used office. Our page on office HVAC maintenance explains how this approach works in office buildings.

Corrective work within the same service

Preventive maintenance reduces breakdowns but does not eliminate them. When a fault occurs, it is prioritised according to the contract and the criticality of the affected equipment. The technician diagnoses the problem on site with measuring equipment and, wherever possible, resolves it in the same visit. If a spare part is needed, it is planned according to the equipment and its availability. Having the same technical team handle both preventive and corrective work has a practical advantage: they know the installation and its history, and do not start from scratch with each call.

Reports and technical traceability

Every intervention produces useful information for the building manager: what was checked, what was found, what was corrected and what is still outstanding. Periodic technical reports make it easier to justify investment, anticipate replacements and prepare budgets. We are also introducing a web platform that centralises technical information for each installation, with a digital record per unit showing its service history, upcoming inspections, detected faults and preventive alerts. Equipment is identified with labels so that each unit is linked to its record.

Requirements that apply

Thermal installations in buildings are subject to maintenance and inspection requirements, such as those set out in RITE, and the associated electrical installations to those of REBT (Spain's low-voltage electrical regulations). A well-organised plan helps keep documentation and the inspections required for each system's capacity and type up to date. For more background, our blog covers preventive HVAC maintenance and its effect over the course of the year.

What to have ready

To assess a maintenance plan, it helps to have:

• Building type, approximate floor area and hours of use.
• A list of equipment (make, model, type and location), even if incomplete.
• Recurring faults or areas with comfort complaints.
• Technical documentation and previous contracts, if available.
• Access arrangements for roofs, ceiling voids and plant rooms.

If you do not yet have an inventory, the first step can be a diagnostic visit. From there we prepare a technical proposal and, if you wish, a technical maintenance contract with the scope in writing. Our overall approach is summarised on the maintenance page.