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CAUTION
Ground the air conditioner.
Grounding resistance should be according to national
regulations
Do not connect the earth wire to gas or water
pipes, lightning conductor or telephone earth
wire.
Incomplete grounding may cause electric
shocks.
Gas pipe.
Ignition or explosion may occur if the gas leaks.
Water pipe.
Hard vinyl tubes are not effective grounds.
Lightning conductor or telephone ground wire.
Electric potential may rise abnormally if struck by a
lightning bolt.
Be sure to install an earth leak detector.
Failure to install an earth leak detector may cause
electric shocks or fire.
Install drain piping according to this installation manual
to ensure good drainage, and insulate the pipe to
prevent condensation.
Improper drain piping may cause water leakage, and
make the furnitures get wet.
Install the indoor and outdoor units, power wire and
connecting wire at least 1 meter away from televisions
or radios to prevent image interference or noise.
(Depending on the radio waves, a distance of 1 meter
may not be sufficient to eliminate the noise.)
Do not rinse the outdoor unit.
This may cause electric shocks or fire.
Do not install the air conditioner in places such as the
following:
Where there is mist of mineral oil, oil spray or vapor
for example a kitchen.
Plastic parts may deteriorate, and cause them to fall
out or water to leak.
Where corrosive gas, such as sulfurous acid gas, is
produced.
Corrosion of copper pipes or soldered parts may
cause the refrigerant to leak.
Where
there
electromagnetic waves.
Electromagnetic waves may disturb the control
system, and cause malfunction of the equipment.
Where flammable gases may leak, where carbon
fiber or ignitable dust is suspended in the air or
where volatile flammables, such as thinner or
gasoline, are handled.
Such gases may cause a fire.
Where the air contains high levels of salt such as
that near the ocean.
Where voltage fluctuates a lot, such as that in
factories.
In vehicles or vessels.
Where acidic or alkaline vapoure is present.
Do not allow a child to mount on the outdoor unit or
avoid placing any object on the unit.
Falling or tumbling may result in injury.
Do not touch any refrigerant which has leaked out of
refrigerant piping connections.
This may result in frostbite.
Installation manual
2
is
machinery
which
emits
2.
I
NTRODUCTION
2.1. Combination
The indoor units can be installed in the following range.
Always use appropriate indoor units compatible with R-410A.
To learn which models of indoor units are compatible with
R-410A, refer to the product catalogs.
Total capacity/quantity of indoor units
Outdoor unit
RXYSQ4
RXYSQ5
RXYSQ6
2.2. Standard supplied accessories
(*)
Gas line piping (1)
+ copper gasket
Gas line piping
(2)(*)
Gas line piping
(3)(*)
Installation manual
Operation manual
(*) Only for RXYSQ6.
Location of accessories: refer to
1
Accessories
2.3. Optional accessories
To install the above outdoor units, the following optional parts are
also required.
Refrigerant branching kit (for R-410A only: Always use an
appropriate kit dedicated for your system.)
Refnet header
KHRQ22M29H
To select an optimum refrigerant branching kit, refer to
branch kit selection" on page
2.4. Technical and electrical specifications
Refer to the Engineering Data Book for the complete list of
specifications.
Total capacity of
Total quantity of
indoor units
indoor units
50~130
6
62.5~162.5
8
70~182
9
1
+
1
1
1
1
figure
1.
Refnet joint
KHRQ22M20T
"Refrigerant
9.
RXYSQ4~6M7V3B
VRVII-S system air conditioner
4PW17806-1C
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