installation
improper installation can cause leakage or damage to the filter
advantages of front mounting of the unit frame: good sealing and standard installation of the filter. disadvantages: large installation space is required; the installation frame costs are high.
advantages of sliding side push and pull installation: saving installation space; saving frame cost. disadvantages: sealing is difficult to do. generally only recommended for initial pre-filtration.
notes for installation of paper frame initial effect filter
special attention should be paid to the filter inlet/outlet when installing!
the outer frame of the primary effect filter is moisture-resistant cardboard, which has no relationship with high humidity, but can not withstand the immersion of liquid water. when the filter is immersed in water, the outer frame becomes soft and the resistance of the filter material increases greatly, which may cause lodging phenomenon. therefore, adequate rain protection measures should be taken into account in fresh air and its use.
final resistance
the final resistance of the primary filter should not be too high. it is suggested that the final resistance should be set at 150 pa-200 pa. if the final resistance is set too high, the dust will permeate and the final resistance may not reach the set value.
the paper box initial effect filter can only be used once!
bag type medium efficiency filter installation precautions
common compression mechanisms
front installation of unit frame
finger press damage
damaged when the filter bag is pulled
installation essentials
filter height and width directions cannot be reversed
glass fiber filter material has poor mechanical strength, improper operation, and is very easy to damage; avoid contact with the inside of the filter material when installing the filter; filter material can not be used as a force point during installation, otherwise it will easily cause damage to the filter material. this often occurs during actual operation, and the user's installer should pay attention to it. customers are advised to wear gloves to install the filter, because the filter bag fixing bracket may hurt the hand, if not wearing gloves, the worker will naturally pick the filter material! causes damage to the filter material.
side pushing type
for side-mounted bag filters, care should be taken to avoid scratching the filter bag by the mounting frame.
final resistance
the final resistance of the glass fiber bag medium efficiency filter is recommended to be below 350pa. otherwise, when the filter is wet by rain or when the air volume of the air conditioner changes, the resistance rises instantaneously, possibly exceeding the structural strength of the filter, resulting in blowout.
when the resistance of chemical fiber filter rises to a certain extent, it will not rise again, so there are few blow-through problems. however, with the prolongation of time, the resistance of fiberglass filter will continue to rise, if not replaced, it will be blown out.
correct installation posture
cautions for installation of w-type filter
installation essentials
filter height and width directions cannot be reversed
the w-type air filter product adopts the same installation frame as the bag type air filter, and adopts the pressing and pressing method. for the w-type air filters of h10 and h13, better sealing frame and stronger compression mechanism (frame quadrangular bolt compression) are needed. sealing between frames must be done, such as pasting sealant.
installation essentials
note that the filter element is scratched
the filter material of the w-type air filter (white pleated part, glass fiber filter paper) is more susceptible to damage than the glass fiber bag air filter material. hold the filter frame when installing/handling and do not touch the white filter. pay attention to the position of the finger holding the frame. inexperienced personnel often inadvertently scratch the filter paper.
correct installation posture
step 1: hold the outer frame of the filter with both hands, put most of the filter into the installation frame and place it firmly; step 2: insert both hands into the v-shaped channel of the filter. note: don't touch the filter paper; step 3: put your hands up against the top cover of the filter, lift the filter slightly, push it carefully inward, and close to the installation frame. step 4: fasten the tightening mechanism.
final resistance
400-600pa
the final resistance of the medium-effect v-type air filter is recommended to be below 400pa. otherwise, when the filter is wet by rain or when the air volume of the air-conditioner changes, the resistance rises instantaneously, which may exceed the structural strength of the filter and blow! the ultimate resistance of a highly efficient v-type air filter should be less than 600pa.
cautions for installation of v-type filter
installation essentials
filter height and width directions cannot be reversed
1、high-volume high-efficiency filter weight (about 20kg for 610x610x292 size products);
2、box type filters are mostly installed with pull rod mounting frames. be careful not to damage the filter when the filter is installed.
3、do not touch the vulnerable filter material when installing the handle or frame.
4、the final resistance should be recommended to customers less than 600pa.
portable handle or frame
do not touch delicate filter materials
tie rod mounting frame
avoid the damage of tie rod to filter
summary
1、after removing the old filter, be sure to clean the filter frame and related equipment and install a new filter.
2、after the filter is installed, check whether the filter is installed correctly and pay attention to the reset of the pressure tube before and after;
3、pay attention to the sealing of the mounting frame and replace the damaged gasket.
4、attention should be paid to the sealing between frames, and low volatile sealant can be used for sealing when necessary.
notices for installation of mini-pleat air filter
installation essentials
in and out of the wind to distinguish
1、hepa/ulpa must be opened in the cleanroom.
2、hold the filter frame with both hands when handling and installing the filter.
3、at least two people are required to install a larger filter, paying attention to the protection of the gasket.
4、do not hold the middle of the filter.
5、do not touch the filter material inside the filter。