Maintenance of Mechanical Air Ventilation: Responsibilities of Residents and the Housing Association
- Mikael Denut
- 13.7.2024
- 4 min käytetty lukemiseen
Mechanical air ventilation is an essential part of modern residential construction, particularly in apartment buildings and other multi-unit properties. A well-functioning ventilation system ensures that indoor air is healthy and pleasant to breathe, thereby improving living comfort and health. However, the efficient use and maintenance of mechanical air ventilation require responsibility and cooperation from both residents and the housing association. This article outlines the actions that fall under the responsibility of the residents and those that are the housing association’s duty.
Maintenance of Mechanical Air Ventilation: Residents’ Responsibilities
1. Cleaning Air Ventilation Vents
Residents should regularly check and clean the air ventilation vents. The surfaces of the vents collect dust and dirt, which can impair airflow and reduce the efficiency of the ventilation system. Vents can be cleaned with a damp cloth or brush without using chemical cleaners.
Instructions for Cleaning Exhaust Vents
Before starting the cleaning process, ensure the ventilation system is turned off. Twist or pull the exhaust vent out of place, but do not touch the central part of the vent (the damper).
If the position of the central part has changed (the nut is loose), airflow measurement and readjustment are necessary. Contact an HVAC specialist (IVAeris Oy).
If the central part’s nut is only slightly loose, you can tighten it yourself. Mark the vent with its location (e.g., WC) to avoid mixing up the vents.
Wash the vent and its intact gasket with dish soap.
If the gasket is damaged, purchase a new one from a hardware store.
Twist or push the vent back into place.
Instructions for Cleaning Supply Vents and Heat Recovery Ventilation (HRV) Unit
The supply air vent in the sauna should be twisted off, the same way as the exhaust air vents. The supply air grilles located in bedrooms and living rooms can be removed by pulling. If the tape on the supply air grille has partially come off, you can re-tape it.
Do not twist the plate of the supply air vent or remove the tape from the grille. If the screw on the supply air vent is completely loose or the tape has entirely come off the supply air grille, airflow measurement and readjustment are necessary. Contact us.
It is advisable to write the location of the vent and grille on their inside to avoid mixing them up during cleaning. The vents and grilles can be washed with dish soap or cleaned with a damp cloth.
The grease filter of the kitchen range hood should be cleaned monthly. The area around the grease filter should also be wiped with a damp cloth and dish soap. The grease filter can be washed in the dishwasher. It can also be soaked in water and scrubbed clean with dish soap.
The heat recovery core (HRV core) of the ventilation unit should be set to summer mode in summer and winter mode in winter. The core should be cleaned when changing the filter. The core can be removed by pulling.
The core can be cleaned with dish soap and by spraying water through the plates. Be careful when cleaning the core to avoid bending the plates. If the core is severely damaged (plates are bent or clogged with insects), contact us.
Download Aeris’ tips for cleaning ventilation devices:
2. Filter Replacement
Many mechanical ventilation systems have filters that collect dust and other impurities. Depending on the type of system, filters can be found in the ventilation unit or in the supply air vents (often referred to by residents as supply air or fresh air vents when the house has an exhaust ventilation system). The most common supply air vent is the Velco. The Velco fabric filter should be replaced at least once a year or as soon as it appears visibly blackened.
During this procedure, set the exhaust fan to the minimum power or turn it off if one is in use. In a natural ventilation system, there are also supply air vents whose filters need to be replaced. Residents should change these filters according to the manufacturer’s instructions, usually at least every six months for supply and exhaust ventilation. Regular maintenance of filters ensures that the ventilation system operates efficiently and keeps the indoor air clean.
Instructions for Replacing the Velco Supply Air Vent Filter
Grip the outer flange of the vent and pull the vent out of the wall.
The filter might release a lot of dust, so carefully remove the old filter and place it in a plastic bag.
Take the new filter, turn it inside out, and roll it over the vent’s frame wires so that the seams remain inside.
There is a black sealing ring on the vent’s neck. Pull the filter over the black sealing ring to ensure the vent is airtight.
Grip the vent and, if necessary, twist it back into place. Ensure the vent is securely and tightly attached to the wall.
Rotate the vent plate to the left from the “click point” at least half a turn. This way, the vent will not completely close in freezing temperatures and ventilation will continue to operate.
Download Aeris’ instructions for replacing the Velco supply air vent filter:
3. Adhering to Operating Instructions
Residents should follow the operating instructions for the ventilation system. This includes the proper use of ventilation in different situations, such as during cooking or showering when humidity and odor levels are higher. Additionally, it is important to ensure that the ventilation operates continuously and is not turned off for extended periods.
4. Observation and Reporting
Residents should monitor the operation of the ventilation system and report any issues or abnormal noises to the housing association. Early observation and reporting help prevent larger problems and ensure that maintenance actions can be taken promptly.
Responsibilities of the Housing Association in Ventilation Maintenance
1. System Maintenance and Inspections
The housing association is responsible for the regular maintenance and inspection of the ventilation system. This includes arranging professional maintenance activities, such as duct cleaning, equipment inspections, and necessary repairs. The housing association must ensure that the system operates optimally and meets all legal requirements.
2. Filter Procurement
Although residents change the filters, the housing association is often responsible for procuring and distributing the filters to the residents. This ensures that the filters used are of the correct type and meet the required quality standards.
3. Providing Usage and Maintenance Instructions
The housing association must ensure that residents receive clear usage and maintenance instructions for the proper use of the ventilation system. These instructions should include information on cleaning vents and filters, monitoring system performance, and reporting practices.
4. Communicating Maintenance Activities
The housing association must inform residents of planned maintenance activities and inspections well in advance. This helps residents prepare for the maintenance and ensures that the activities can be carried out smoothly and without issues.
The use and maintenance of mechanical ventilation require active participation and cooperation from both residents and the housing association. Residents are responsible for cleaning the ventilation vents, replacing filters, adhering to operating instructions, and reporting any potential issues. The housing association is responsible for the regular maintenance and inspection of the system, procurement of filters, distribution of usage and maintenance instructions, and communication regarding maintenance activities. Through collaboration, it is ensured that the ventilation system operates efficiently, and the indoor air remains clean and healthy for all residents.
Responsibilities of Property Owners Regarding Ventilation
Property owners have a significant responsibility in maintaining the functionality of the ventilation system and the quality of indoor air. Here is a brief guide for property owners on the maintenance and upkeep of the ventilation system:
1. Regular Maintenance and Inspections
Property owners should arrange regular maintenance and inspections of the ventilation system at least every five years, or more frequently if the system is heavily used or its condition requires it. This includes professional cleaning of the ducts and inspection of the system.
2. Filter Replacement
Filters should be replaced regularly, usually every 3-6 months, or according to the manufacturer’s recommendations. This ensures the efficient operation of the system and keeps the indoor air clean.
3. System Monitoring
Owners should monitor the operation of the ventilation system and respond quickly to any issues, such as abnormal noises, reduced airflow, or unpleasant odors. Identified problems should be promptly repaired by a professional.
4. Adhering to Operating Instructions
The operating instructions for the ventilation system should be followed carefully. This includes continuous use of the system and proper adjustments to ensure adequate air exchange and optimal system performance.
5. Documentation
It is important to keep all documents related to the maintenance and inspections of the ventilation system. This helps in tracking the condition of the system and ensuring that all necessary actions have been performed on time.
We recommend entering into a maintenance agreement with IVAeris Oy for the upkeep of your ventilation system. Our professionals perform maintenance twice a year, ensuring the optimal operation of the system and the quality of indoor air. This way, you can be confident that your ventilation is always in good condition and health risks are minimized. Contact us and request a quote for a maintenance agreement!
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