Frequently asked questions

Preventive maintenance is scheduled in advance: periodic inspections, technical cleaning, component checks and performance monitoring to catch wear before it causes a shutdown. Corrective maintenance steps in once a fault has occurred, to diagnose and fix it. In buildings of intensive use the sensible approach is to combine both, so that preventive work keeps corrective call-outs to a minimum. You can see how we organise them on our maintenance page.

It depends on the equipment, but it usually covers cleaning or replacing filters, the condition of coils and condensate trays, drains, the working pressures and temperatures of the refrigerant circuit, electrical connections and the operation of the controls. Every anomaly is recorded so that its progress can be followed. Our article on preventive HVAC maintenance goes into more detail.

The plan is tailored to the type of building, how it is used, the number of units and how critical each installation is. A hotel with continuous occupancy or a healthcare centre does not have the same needs as an office with fixed hours. Once the installation has been surveyed, tasks, intervals and priority equipment are defined. Find out more about HVAC maintenance for businesses.

In the hot months equipment runs close to full capacity, and that is when faults that have been building up surface: clogged filters, dirty coils, low refrigerant or worn fans. Inspecting systems before peak demand leaves time to correct those points and plan spare parts. We explain this in before summer demand peaks, your HVAC system has already given clues.

Thermal installations are subject to the requirements of the RITE (Spain's regulation on thermal installations in buildings) and electrical installations to those of the REBT (the low-voltage electrical regulation). Among other things, they set maintenance operations and inspections whose scope depends on the type and capacity of each installation. When a plan is drawn up, the requirements that apply to the building are factored in, so technical inspections and regulatory obligations share a single calendar.

At a minimum: the installations and equipment covered, preventive tasks and intervals, how corrective work is prioritised and managed, how materials and labour are treated, and the reports you will receive. Having these points in writing avoids misunderstandings and makes the service easier to review. At MRS Climatización service conditions are set out in each contract; see our approach to technical maintenance contracts.

When HVAC, electrical and industrial refrigeration are handled by different companies, the same fault can be passed from one supplier to another without anyone taking ownership of the diagnosis. With a single technical contact, coordination is simpler, the history sits in one place and responsibilities are clearer. We look at this in one supplier, clearer accountability.

They are prioritised according to what has been agreed in the contract and how critical the affected equipment or space is. A unit serving a plant room or occupied bedrooms is not the same as one in a corridor. That is why it helps to identify critical installations in the contract itself. There is more on corrective work on our HVAC fault diagnosis and repair page.

It helps to have a list of equipment with location, make and model, any available drawings or schematics, previous maintenance records and the building's hours of use. It is also useful to flag which spaces are critical and which faults keep recurring. Anything missing is completed during the initial survey. You can send us whatever documentation you have via our contact page.

First, the details of the fault are gathered to assess its priority. On site, the technician carries out the diagnosis with measuring equipment and, wherever possible, completes the repair during the same visit. If a spare part is needed, it is planned according to the equipment and its availability, and everything done is recorded. See the process on our HVAC fault diagnosis and repair page.

Tell us where the unit is, its make and model or the identification label if it has one, the symptom (not cooling, dripping, noisy, showing an error code), how long it has been happening and which spaces are affected. Mention access conditions too, such as roofs, false ceilings or locked rooms. With this information the technician arrives better prepared. You can report it through our contact page.

New noises or vibrations, ice on pipes or coils, drips, odours, frequent starts and stops, rooms taking longer to reach temperature, or electricity consumption rising for no obvious reason. None of these signs should be ignored, as they often come before more serious breakdowns. We cover this in your building warns you before it fails.

Yes, fairly often. Tripping protection devices, worn contactors, loose connections in the electrical panel or supply problems can look like a fault in the air-conditioning unit itself. When the same technical team looks after both installations, diagnosis is more direct and the fault is not passed from one supplier to another. We discuss this in our article on fragmented maintenance across multiple suppliers.

Yes. Alongside HVAC, we handle faults in electrical installations, electrical panels, automation and control systems, as well as industrial refrigeration equipment. The same approach applies in every case: diagnosis with measurement, repair during the same visit where possible, and a record of the work carried out. You can see the full scope of the service on our maintenance page.

HVAC installations, including VRF, fan-coil, aerothermal and other renewable systems; new or upgraded electrical installations, electrical panels and automation, control and building automation, and technical lighting; industrial refrigeration; and water and gas installations. We work in professional buildings and buildings of intensive collective use. Find out more about HVAC installation for buildings.

Yes. We coordinate refurbishments that involve several installations at once, which simplifies planning and reduces clashes between trades. Published projects include the full refurbishment of all installations and finishes at Residencia CollBlanc in Barcelona, an office refurbishment in Alta Diagonal and the replacement of the HVAC system for the whole of Biblioteca Can Mulà.

It is worth knowing the power currently available and what will be needed, the condition of panels and protection devices, the capacity of existing circuits and the REBT requirements that apply to the new installation, as well as its certification and legalisation. It is also important to plan how the works will affect the use of the building. We explain this in questions before approving an electrical upgrade.

Often, yes. Adjusting set points and schedules, reviewing zoning, improving the control system or replacing only the least efficient units can reduce consumption without a full overhaul. Where renewal is needed, options such as VRF systems or aerothermal heat pumps are assessed according to the building. There is more detail on VRF and fan-coil systems.

MRS Climatización can take it on. Our process has four stages: diagnosis, technical proposal, execution and ongoing maintenance. When the team that installs the system also maintains it, they already know its design and documentation, and the technical history starts from day one. See the options for technical maintenance contracts.

We work mainly in Barcelona and its metropolitan area, and in Sabadell and the surrounding area. Larger-scale works can be carried out anywhere in Catalonia. If your building is outside these areas, let us know the location and the scope of the work and we will confirm whether we can take it on. Find out more about the Barcelona metropolitan area.

MRS Climatización has two bases. Production and the warehouse are at C/ Ramon Llull, 93, in Sabadell, where materials and equipment are prepared. Administration and finance are at Rambla de Catalunya, 123, in Barcelona. This set-up makes it straightforward to serve buildings in both the Vallès and the Barcelona area. See our Sabadell page.

Office hours are Monday to Friday, 9:00 to 18:30. Night-time and out-of-hours work can be arranged in advance, which is useful in hotels, offices or shops where activity should not be disrupted. To organise it, let us know the available time slots and access conditions well ahead. Find out more about hotel HVAC maintenance.

Yes. As well as clients with a contract, we carry out one-off repairs in buildings that do not have a maintenance plan with us. The work follows the same method: on-site diagnosis, repair during the same visit where possible and a record of what was done. If the fault points to underlying problems, we will tell you whether a preventive plan is worth considering. See HVAC fault diagnosis and repair.

It is a web platform we are incorporating to centralise the technical information for each installation. Every unit is identified with a label and has a digital record showing its intervention history, upcoming inspections, detected faults and preventive alerts. The aim is for the person responsible for the building to have all the information in one place. Find out more on our maintenance page.

Professional buildings and buildings of intensive collective use: hotels, student residences, schools and education centres, offices, retail and commercial premises, healthcare and geriatric centres, and communities or multi-user buildings. We usually work with building managers, property managers and facility and maintenance managers. See, for example, office HVAC maintenance or healthcare facilities.