Installation manual
3
RZQG71~140L + RZQSG100~Y1B(9)
Split system air conditioners
4P327537-1 – 2012.08
Caution
Earth the unit.
Earthing resistance should be according to applicable
legislation.
Do not connect the earth wire to gas or water pipes,
lightning conductor or telephone earth wire.
Incomplete earthing may cause electric shocks.
Gas pipe.
Ignition or explosion may occur if the gas leaks.
Water pipe.
Hard vinyl tubes are not effective earths.
Lightning conductor or telephone earth wire.
Electric potential may rise abnormally if struck by a lightning
bolt.
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 unit 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 sulphurous 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 in factories.
In vehicles or vessels.
Where acidic or alkaline vapour 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.
For use of units in applications with temperature alarm settings it
is advised to foresee a delay of 10 minutes for signalling the
alarm in case the alarm temperature is exceeded. The unit may
stop for several minutes during normal operation for "defrosting
the unit", or when in "thermostat stop" operation.
This appliance is intended to be used by expert or trained users
in shops, in light industry and on farms, or for commercial use by
lay persons.
Sound pressure level is less than 70 dB(A).
Provide a logbook
In accordance with the relevant national and international codes, it
may be necessary to provide a logbook with the equipment
containing at least
- info on maintenance,
- repair work,
- results of tests,
- stand-by periods,
- etc...
In Europe, EN378 provides the necessary guidance for this logbook.
3.
Before installation
3.1.
Scope of this manual
This manual describes the procedures for handling, installing and
connecting RZQ(S)G71~140 units.
3.2.
Precautions
Check the following if the ground-fault circuit interrupter is triggered:
Make sure that the interrupter is compatible with high
frequencies.
This unit has an inverter, so an interrupter capable of handling
high frequencies is needed to prevent malfunction of the
interrupter itself.
3.3.
Precautions for R410A
The refrigerant requires strict cautions for keeping the system
clean, dry and tight.
- Clean and dry
Foreign materials (including mineral oils or moisture) should be
prevented from getting mixed into the system.
- Tight
Read
"9. Precautions on refrigerant piping" on page 9
carefully
and follow these procedures correctly.
Since R410A is a mixed refrigerant, the required additional
refrigerant must be charged in its liquid state. (If the refrigerant is
in state of gas, its composition changes and the system will not
work properly).
The connected indoor units must be indoor units designed
exclusively for R410A.
CAUTION
Since maximum working pressure is 4.0 MPa or 40 bar,
pipes of larger wall thickness may be required. Refer to
paragraph
"8.1. Selection of piping material" on page 7
.
NOTICE: Insulation resistance of the compressor
If, after installation, refrigerant accumulates in the
compressor, the insulation resistance can drop, but if it is at
least 1 M
Ω
, then the machine will not break down.
Turn the power on and leave it on for six hours. Then,
check if the insulation resistance of the compressor
has risen or not.
The compressor will heat up and evaporate any
refrigerant in the compressor.
