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RYYQ+RYMQ+RXYQ8~20T7Y1B
VRV IV System Air Conditioner
4P329765-1 – 2012.09
Installation and operation manual
8
1
Personal computer or radio
2
Fuse
3
Earth leakage protector
4
User interface
5
Indoor unit
6
Outdoor unit
In places with weak reception, keep distances of 3 m or more to
avoid electromagnetic disturbance of other equipment and use
conduit tubes for power and transmission lines.
The refrigerant R410A itself is nontoxic, non-flammable and is
safe. If the refrigerant should leak however, its concentration
may exceed the allowable limit depending on room size. Due to
this, it could be necessary to take measures against leakage.
Refer to
"18. Caution for refrigerant leaks" on page 48
.
Do not install in the following locations:
- Locations where sulphurous acids and other corrosive gases
may be present in the atmosphere. Copper piping and
soldered joints may corrode, causing refrigerant to leak.
- Locations where a mineral oil mist, spray or vapour may be
present in the atmosphere. Plastic parts may deteriorate and
fall off or cause water leakage.
- Locations where equipment that produces electromagnetic
waves is found. The electromagnetic waves may cause the
control system to malfunction, preventing normal operation.
- Locations where flammable gases may leak, where thinner,
gasoline and other volatile substances are handled, or where
carbon dust and other incendiary substances are found in the
atmosphere. Leaked gas may accumulate around the unit,
causing an explosion.
When installing, take strong winds, typhoons or earthquakes into
account, improper installation may result in the unit turning over.
6.2.
Weather related precautions
Select a place where the rain can be avoided as much as
possible.
Be sure that the air inlet of the unit is not positioned towards the
main wind direction. Frontal wind will disturb the operation of the
unit. If necessary, use a screen to block the wind.
Ensure that water cannot cause any damage to the location by
adding water drains to the foundation and prevent water traps in
the construction.
Do not install the unit in areas where the air contains high levels
of salt such as that near the ocean.
6.3.
Selecting a location in cold climates
To prevent exposure to wind and snow, install a baffle plate on the air
side of the outdoor unit:
1
Baffle plate
In heavy snowfall areas it is very important to select an installation
site where the snow will not affect the unit. If lateral snowfall is
possible, make sure that the heat exchanger coil is not affected by
the snow (if necessary construct a lateral canopy).
1
Construct a large canopy.
2
Construct a pedestal.
Install the unit high enough from the ground to prevent
burying in snow.
NOTICE
The equipment described in this manual may cause
electronic noise generated from radio-frequency energy.
The equipment complies to specifications that are
designed to provide reasonable protection against such
interference. However, there is no guarantee that
interference will not occur in a particular installation.
It is therefore recommended to install the equipment and
electric wires keeping proper distances away from stereo
equipment, personal computers, etc.
2
3
6
4
4
1
3
2
5
(mm)
NOTICE
When operating the unit in a low outdoor ambient
temperature, be sure to follow the instructions described
below.
1
1
2
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