Below is a detailed list of the most crucial, easily overlooked, and directly affecting the lifespan and cleaning efficiency aspects when installing an efficient filter in a manual double-door or shower room, specifically for this purpose. It is practical and can be directly followed:
1. Pre-installation precautions
Make sure the direction is absolutely correct and the filter cannot be installed backwards.
The efficient filter has arrow markings, and the arrow must be in the same direction as the airflow (in a shower room, it usually blows from the outside to the inside).
Installing it backwards will result in high resistance, easy clogging, sealing failure, and a halved lifespan.
Clean the installation frame and box
Before installation, wipe the static pressure box, installation slot, and sealing strip position with a dust-free cloth. There should be no dust or debris.
Dust can cause poor sealing and air leakage.
Do not touch or squeeze the filter paper with your hands.
Finger oil and sweat can damage the filter paper structure, causing local blockage or leakage.
Only grasp the metal frame when moving, do not pinch the filter paper.
2. Sealing section (most critical)
The sealing strip must be complete, without fractures, and not flattened.
The sealing strip interface should be 45° aligned, not simply connected, otherwise the corner area will leak.
The compression of the sealing strip should be controlled at about 1/3, too loose will cause air leakage, and too tight will easily age and fail.
The four corners are the leakage hotspots.
During installation, carefully check the four corners, the sealing strip should not curl or be misaligned.
If necessary, apply a small amount of neutral sealant at the corners to assist in sealing.
Do not forcefully press or lever the installation.
Forcing will result in:
Frame deformation
Filter paper cracking
Local loss of elasticity of the sealing strip
Push gently to the correct position, evenly distribute the force.
3. Installation process details
Multiple people cooperate, maintain levelness
The efficient filter in a shower room has a large size, single-person installation is prone to tilting, resulting in one side being tight while the other is loose.
Place it horizontally, with uniform gaps around.
The pressing method should be uniform.
When using a pressure strip or screw to fix, gradually tighten diagonally, do not lock single-sided at once.
Avoid excessive force causing deformation of the frame.
Ensure complete adhesion to the static pressure box.
There should be no gaps or suspensions between the filter and the box.
Gaps will form vortices, causing local dust accumulation and abnormal pressure differences.
4. Post-installation inspection
Manual inspection of sealing performance
Feel along the edge of the box with your hand, check for any air leakage or gaps.
Close the shower door, turn on the fan, use a paper strip or hand to test for any obvious air overflow.
Record the initial pressure difference
After installation, start the machine for 5 minutes, record the pressure difference table value, as a basis for subsequent replacement.
It is recommended to immediately conduct a completeness leak detection.
After a new efficient installation, leak detection must be performed to avoid leakage immediately after installation due to installation issues.
5. Special points for automatic double-door shower rooms
Door body vibration is large
Filter fixation must be firm, the pressure strip screws must not be loose, otherwise long-term vibration will cause loosening and air leakage.
High air volume and strong impact
The quality of the sealing strip must be good to avoid the sealing strip being deformed by the high-speed airflow.
High-temperature double-door interlock environment has high sealingity
If there is leakage, it will be easily detected. Installation must be done in one go to avoid rework.
6. Prohibited behaviors (very important)
Do not use water to rinse the efficient filter.
Do not knock or hit the filter frame.
Do not use non-original or non-matching efficient filters.
Do not place any items on the filter.
Do not disassemble or assemble without power off.
