7
4.3 Installation and Repair of
Filter Screen
4.3.1 Installation of Filter Screen
(1) As shown in the figure below, remove the filter screen
fastening screw;
(2) Draw the filter screen down until the upper rib gets out
of the slot;
(3) Pull out the left and right ribs of filter screen out of the
machine, and take out the filter screen;
(4) Clean and reinstall the filter screen following the
reverse steps of its removal.
4.3.2 Maintenance and Servicing of
Filter Screen
Take down the filter screen from the machine during
maintenance, and remove the dust with dust collector or
water. To remove stubborn dirt, please dissolve neutral
detergent in cold water, and clean the screen therein.
Take out the well cleaned filter screen, dry and reinstall it.
Depending on local air quality, please clean the filter
screen every 3 months operation of air conditioner.
4.4 Indoor Unit Installation
4.4.1 Suspension Bolts
Fig. 4.3 Mounting the Suspension Bolts
Fig. 4.2 Installation of Filter Screen
Indoor Unit
Air Filter
Screw
(1) Decide upon appropriate mounting position and
orientation by carefully taking into consideration the piping,
wiring and repair.
(2) Fig. 4.3 shows how to install suspension bolts.
● For Concrete Slab
5-29/32 to 6-5/16
Screw in
(221 to 331 lbs)
Concrete
Steel
Suspension
Bolt
(W3/8 or M10)
● For Steel Beam
I Beam
Suspension Bolt
(W3/8 or M10)
● For Wooden Beam
Wooden Rib
2-3/8 to 3-17/32
in. square
timber)
Wooden Beam
Nut
Nut
Square Washer
Square Washer
Suspension Bolt
Pay attention to the following points when the indoor unit is
installed in a hospital or other facilities where there are
electronic waves from medical equipment, etc.:
(A) Do not install the indoor unit where the electromagnetic
wave is directly radiated to the electric box, wired control
cable or wired control.
(B) Install the indoor unit and components as far
a po
or at least 118-7/64 inch. from the electromagnetic
wave
radiator.
(C) Prepare a steel box and install the wired control in it.
Prepare a steel conduit tube and wire the control cable in it.
Then, connect the ground wire with the box and the tube.
(D) Install a noise filter when the power supply emits
harmful noises.
To avoid any corrosive action to the heat exchangers, do not
install the indoor unit in an acid or alkaline environment.
(in.)