3 Transportation and Handling
• Do not perform installation work without
referring to Installation Manual. If the
instructions are not followed, it may result
in a water leakage, electrical shock, fire, or
injury from falling of the AHU connection kit.
• Do not step or put any material on the
AHU connection kit.
Transportation
() Transport the product to the installation
location without removing any packing
material.
() Do not put any material on the AHU connection
kit when transporting.
(5) Secure proper space around the AHU connection
kit for operation and maintenance work. Also a
service access door should be prepared in order
to remove the AHU connection kit without getting
rid of the ceiling plate.
() Select a suitable and convenient location for
the refrigerant piping connection.
• Do not install the AHU connection kit where
electromagnetic wave is directly radiated to
the control box or expansion valve box.
• Install a noise filter when noise is emitted from
power supply .
• Do not install the AHU connection kit where
generation, flowing, staying or leakage of
flammable gas may occur.
• When the false ceiling contains high humidity,
dew condensation water may occur on the outer
surface of the expansion valve box while cooling
operation. In this case, utilize the insulation on
the outer surface of the expansion valve box.
3.
Install the expansion valve kit at least 3
meters away from the electromagnetic
wave radiator.
() Installation methods are selectable according
to the space .
() Follow the arrow direction on the expansion
valve box for installation.
(3) Keep the distance between the heat exchanger
of AHU and the expansion valve box for the
piping length up to 5m. Also the elevation
difference between the heat exchanger of AHU
and the expansion valve box must be no more
than m.
(4) Check the ceiling slab is strong enough. If
the ceiling slab is too weak to support the
weight of the AHU connection kit, noise and
vibration may occur.
Installation Location
3.
The sound of refrigerant running through
the expansion valve box may be heard
Therefore install the expansion valve box
where the sound will not leak such as in
the false ceiling of a hall way.
Use ceiling material with sound-proof such
as plaster board.
3.3 Dimension Data
Control box
Expansion valve box
mm
fixing hole( )
f
fixing hole( )
f
9 Cable glands
4 fixing screws
for the control
box cover
fixing bracket
Control wires
for electrical
expansion valve
Indication of installation direction:
keep the arrow up
(7) Do not install the AHU connection kit in a
kitchen where vapor or mist flows. Dew
condensation water may occur on the
3.4 Installation Method
Control box
4 fixing screws
for control box
C A U T I O N
expansion valve box while cooling operation.
In this case, utilize the insulation.
(8)
(9)
Check to ensure the fixing screws and wall has
sufficient strength to hang the control box.
Service
Space
Min.500
Min.100
Min.100
Service
Space
Service
Space
5