24
14_09. 5641250_01
NRL free cooling 0280-0750 60Hz
EN
14.
CONTROL AND FIRST START-UP
14.1. PREPARATION FOR COMMISSIONING
Bear in mind that a free start-up service is offered by
the Aermec Technical Service for the unit of this series,
at the request of Aermec customers or legitimate
owners and in ITALY only.
The start-up must be previously agreed on the basis
of the system implementation times. Before the
intervention of the AERMEC After Sales Service, all the
operations (electrical and hydraulic hook ups, loading
and breather from the system) must be completed.
Before starting the unit make sure that:
− All the safety conditions have been respected
− The unity has been properly fixed to the support
base
−
The minimum technical spaces have been
observed;
− Water connections have been performed
respecting the input and output
−
The hydraulic system has been loaded and vented.
−
The hydraulic circuit taps are open
− The electrical connections have been properly
carried out;
−
The voltage is within a tolerance of 10% of the
unit nominal voltage
−
The earthing has been carried out correctly
−
Tightening of all electrical and hydraulic
connections have been well carried out.
14.2. FIRST COMMISSIONING OF THE
MACHINE
Before activating the unit:
- Close the electric panel lid.
- Position the door-block disconnecting switch of the
machine on ON,
turning the handle down. (fig.3)
-
Press the key ON to start the machine (fig.4);
when the access LED appears the unit is ready for
the operation.
14.3. SEASON CHANGEOVER
- For each seasonal change check that the operation
conditions return to the limit.
- Check that the absorption current of the
compressor is less than the maximum indicated in
the technical data table.
- Check in the models with three-phase supply
power that the noise level of the compressor is not
abnormal, in this case invert a phase.
- Make sure that the voltage value are within the
prefixed limits and that the displacements between
the three phases (three-phase supply power) do not
get above 3%.
14.3.1. SEASON CHANGE OF THE PANEL ON THE
MACHINE
To activate the season change, just press the indicated
key in
(fig. 5)
. To ensure that the operation is
successful,
machine must be active as remote or local.
For further information refer to the
USE manual.
14.3.2. SEASON CHANGE OF PR3
- Just act directly on the switch. The machine turns
off automatically and it restarts with the selected
operation mode.
WARNING
The first start-up has to be carried
out with the standard settings,
only at last test vary the values of
the operation Set Point.
Before starting, power the unit for
at least 12-24 hours by positioning
the protection thermomagnetic
switch and the door-block
disconnecting switch on ON fig.1
Make sure that the control panel
is turned off until it allows the oil
heater system the compressor
casing.
Fig.4
Fig.3
SET
C1
C2
R
L R
LED access
SET
C1
C2
R
L R
Fig.5
PR3 remote panel
