27
HWMC
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RG66008809 - Rev 00
4 STARTING
UP
FIRST START-UP MAY BE CARRIED OUT SOLELY BY QUALIFIED
TECHNICIANS DULY AUTHORIZED BY GALLETTI S.P.A.
(SEE ENCLOSURE)
When starting up the system for the first time, abide by the provisions of the
national laws currently in force.
4.1 PRELIMINARY
CHECKS
When starting up the unit for the first time (or after a seasonal shutdown) it is
a good idea to have the following checks carried out by specialised personnel:
- Check that the electrical connections have been made properly and that
all the terminals are securely tightened.
- Check that the mains voltage corresponds to the voltage rating of the
machine, within a tolerance range of ± 5%.
If the power supply is subject to frequent voltage fluctuations, contact
Galletti S.p.A. for advice on choosing suitable protections.
- Check for refrigerant leaks, with the aid of a leak detector if necessary.
- Check that the plumbing connections have been properly made according
to the indications given on the plates to be found on the unit itself (water
inlet, water outlet etc.).
- Make sure that the pump is not blocked.
- Make sure that the water circuit is duly bled to completely eliminate the
presence of air: load the circuit gradually and open the air vent valves,
which the installer should have set in place.
Warning
Before starting the unit, make sure all the covering panels
are in place and secured with the fastening screws provided. To start
the unit, move the main switch to on.
To start the unit turn on the main switch. Then use the keypad of the
electronic control as directed in section 3.3 to select the cooling or
heating mode.
Warning
You should not disconnect the unit from the power supply
during periods when it is inoperative but only when it is to be taken out
of service for a prolonged period (e.g. at the end of the season). To turn
off the unit temporarily follow the directions provided in section 3.3.
Warning
Do not cut off power using the main switch: the latter
device is used to disconnect the unit from the electricity supply when
there is no passage of current. i.e. when the unit is already turned OFF.
