Installation and operation manual
40
10T8Y1B
VRV-W IV System Air Conditioner
4P399208-1 – 2015.01
No matter which control is selected, variations on the behaviour of
the system are still possible due to protection controls to keep the
unit operating under reliable conditions. The intentional target,
however, is fixed and will be used to obtain the best balance between
energy consumption and comfort, depending on the application type.
18. Test operation
After installation and once the field settings are defined, the installer
is obliged to verify correct operation. Therefore a test run must be
performed according to the procedures described below.
18.1. Test operation
18.1.1
Precautions before starting test operation
During test operation, the outdoor unit and the indoor units will start
up:
Make sure that the preparations of all indoor units are finished
(field piping, electrical wiring, ...). See installation manual of the
indoor units for details.
Make sure that the source water pump is operating. Make sure
that all air in the water circuit is evacuated and the water can
circulate with appropriate flow rate.
Make sure that the interlock circuit is connected. The unit cannot
operate if there is no connection.
Provide a logbook and machine card.
In accordance with the applicable legislation, 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, …
CAUTION
Do not perform the test operation while working on the
indoor units.
When performing the test operation, not only the outdoor
unit, but the connected indoor unit will operate as well.
Working on an indoor unit while performing a test operation
is dangerous.
CAUTION
During tests never pressurize the appliances with a
pressure higher than the maximum allowable
pressure (as indicated on the nameplate of the unit).
If refrigerant gas leaks, ventilate the area immediately.
Toxic gas may be produced if refrigerant gas comes
into contact with fire.
Never directly touch any accidental leaking
refrigerant. This could result in severe wounds caused
by frostbite.
Test run is possible for heat source water
temperatures between 10°C and 45°C.
DANGER: Do not touch piping and internal parts.
See
"2. General safety precautions" on page 2
DANGER: Electrical shock
See
"2. General safety precautions" on page 2
INFORMATION
Note that during the first running period of the unit,
required power input may be higher. This phenomenon
originates from the compressor that requires a 50 hour run
elapse before reaching smooth operation and stable power
consumption. Reason is that the scroll is made out of iron
and that it takes some time to smooth the surfaces that
make contact.
NOTICE
To protect the compressor, be sure to turn on the power
supply 6 hours before starting operation.
