5 Preparation
Installer and user reference guide
11
RXYTQ8~16U7YF
VRV IV+ heat pump for high ambient temperatures
4P561157-1 – 2018.09
NOTICE
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.
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.
b
b
a
a
c
d
f e
(mm)
≥
1500
≥
1500
≥
1500
≥
1000
≥
1000
≥
1000
≥
1000
≥
1000
≥
1000
e
a
Personal computer or radio
b
Fuse
c
Earth leakage protector
d
User interface
e
Indoor unit
f
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.
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.
▪ When installing, take strong winds, typhoons or earthquakes into
account, improper installation may result in the unit turning over.
▪ 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
safety against refrigerant leaks" on page 12
.
CAUTION
Excessive refrigerant concentrations in a closed room can
lead to oxygen deficiency.
▪ 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.
Seaside installation.
Make sure the outdoor unit is NOT directly
exposed to sea winds. This is to prevent corrosion caused by high
levels of salt in the air, which might shorten the life of the unit.
Install the outdoor unit away from direct sea winds.
Example:
Behind the building.
b
c
a
If the outdoor unit is exposed to direct sea winds, install a
windbreaker.
▪ Height of windbreaker≥1.5×height of outdoor unit
▪ Mind the service space requirements when installing the
windbreaker.
a
b
c
d
c
d
a
Sea wind
b
Building
c
Outdoor unit
d
Windbreaker
5.2.2
Additional installation site requirements
of the outdoor unit in cold climates
NOTICE
When operating the unit in a low outdoor ambient
temperature, be sure to follow the instructions described
below.
▪ To prevent exposure to wind and snow, install a baffle plate on the
air side of the outdoor unit:
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, install a snow cover or shed and a pedestal.
