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Installation and operation manual
7
RYYQ+RYMQ+RXYQ8~20T7Y1B
VRV IV System Air Conditioner
4P329765-1 – 2012.09
5.3.
Main components in the electrical component box
1
Main PCB.
2
Terminal block X1M: main terminal block which allows easy
connection of field wiring for power supply.
3
Terminal X1M on main PCB: terminal block for
transmission wiring.
4
Cable tie mountings: the cable tie mountings allow to fix
the field wiring with cable ties to the electrical component
box to ensure strain relief.
6.
Selecting an installation location
If a RYYQ8~20 is installed at an altitude above 1000 m, the pressure
in the storage vessel must be reduced to atmospheric pressure
(location of storage, see figure below).
To assure the storage vessel is brought to atmospheric pressure, the
service port on the vessel must be used (location of service port, see
figure below).
1
Unscrew the cap.
2
Push down the pin to release the pressure in the storage vessel
(see instruction below).
3
Reattach the cap of the service part.
6.1.
General precautions on installation
Select an installation site that meets the following requirements:
The foundation must be strong enough to support the weight of
the unit.
The floor is flat to prevent vibrations and noise generation and to
have sufficient stability.
The space around the unit is adequate for maintenance and
servicing (refer to
"7.2. Service space" on page 9
).
The space around the unit allows for sufficient air circulation.
There is no danger of fire due to leakage of inflammable gas.
The equipment is not intended for use in a potentially explosive
atmosphere.
Select the location of the unit in such a way that the sound
generated by the unit does not disturb anyone, and the location
is selected according the applicable legislation.
All piping lengths and distances have been taken into
consideration (refer to
"9.5. System piping (length) limitations"
on page 13
).
Take care that in the event of a water leak, water cannot cause
any damage to the installation space and surroundings.
When installing the unit in a small room, take measures in order
to keep the refrigerant concentration from exceeding allowable
safety limits in the event of a refrigerant leak, refer to
"18. Caution for refrigerant leaks" on page 48
.
INFORMATION
For more details refer to the wiring diagram of the units.
The wiring diagram is located on the inside of the electrical
component box.
WARNING
Be sure to provide for adequate measures in order to
prevent that the unit is used as a shelter by small animals.
Small animals making contact with electrical parts can
cause malfunctions, smoke or fire. Please instruct the
customer to keep the area around the unit clean and clear.
This is a class A product. In a domestic environment this
product may cause radio interference in which case the
user may be required to take adequate measures.
R(X/Y)(Y/M)Q8~12
1
2
3
4
R(X/Y)(Y/M)Q14~20
1
2 3
4
CAUTION
Appliance not accessible to the general public, install it in a
secured area, protected from easy access.
This unit, both indoor and outdoor, is suitable for
installation in a commercial and light industrial
environment.
INFORMATION
This is only required for RYYQ8~20 units, NOT for
RYYQ22~54 or RXYQ8~54 units.
CAUTION
Excessive refrigerant concentrations in a closed room can
lead to oxygen deficiency.
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