Introduction; Combination; Standard Supplied Accessories; Optional Accessories - Panasonic URBAN MULTI Manuel D'installation

When wiring between the indoor and outdoor units, and wiring
the power supply, form the wires so that the frontside panel can
be securely fastened.
If the frontside panel is not in place, the terminals may overheat
and electric shocks or a fire may be caused.
If refrigerant gas leaks during installation work, ventilate the
area immediately.
Toxic gas may be produced if refrigerant gas comes into contact
with fire.
After completing the installation work, check to make sure that
there is no leakage of refrigerant gas.
Toxic gas may be produced if refrigerant gas leaks into the room
and comes into contact with a source of fire, such as a fan
heater, stove or cooker.
Before touching electric terminal parts, turn off power switch.
Caution
Ground the air conditioner.
Grounding resistance should
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 leakage breaker.
Failure to install an earth leakage breaker 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
furniture 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 vapour 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 is machinery which emits 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 vapour is present.
Installation manual
2
be according to national
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.
2. I
NTRODUCTION

2.1. Combination

The indoor units can be installed in the following range.
Always use appropriate indoor units compatible with R410A.
To learn which models of indoor units are compatible with
R410A, refer to the product catalogs.
Total capacity/number of indoor units
Total capacity of
Outdoor unit
U-4ML4
U-5ML4
U-6ML4

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 U-6ML4.
Location of accessories: refer to figure 1.
1 Accessories

2.3. Optional accessories

To install the above outdoor units, the following optional parts are
also required.
Refrigerant branching kit (for R410A only: Always use an
appropriate kit dedicated for your system.)
Refnet header
CZ-P29HK12Q
To select an optimum refrigerant branching kit, refer to "Refrigerant
branch kit selection" on page 9.
2.4. Technical and electrical specifications
Refer to the Engineering Data Book for the complete list of
specifications.
Total number of
indoor units indoor units
50~130 6
62.5~162.5 8
70~182 9
1
+
1
1
1
1
Refnet joint
CZ-P20BK12Q
U-4~6ML4DPQ
Urban Multi air conditioner
4PW29037-1