INS-103
DUAL, TRIPLE, POKER DC Inverter : 4. Installation
Multi Liberty
DC Inverter
4.7.24 Final checks & Test
1. Test procedure of system must be carried out only after installation has been completed in all its parts
(electric part and refrigerant part).
2. Before carrying out the Test, please check the following:
• Has installation of Indoor Units and Outdoor Unit been completed?
• Have wiring and refrigerant connections been completed?
• Are there any refrigerant leakages on the refrigerant circuit?
• Does each drain piping assure proper flowing of water poured inside of it (test)?
• Have refrigerant pipings and drain hose been thermally insulated properly?
• Has Ground connection been carried out properly on system?
• Have refrigerant pipings’ length and the eventual additional refrigerant charge been written down?
• Do power supply voltage specifications correspond to the system‘s plate specifications?
• Are there any obstacles which obstruct air outlet and air inlet on Indoor and Outdoor Units?
• Have Outdoor Unit’s service valves been completely opened?
• Has system been powered for any hours, to heat the bottom of compressor?
3. With the agreement of User, install the remote control’s bearing in such a position that signals sent by remote
control - installed on its bearing - can be received by Indoor Unit.
4. Test
Set Cooling mode by remote controller and press “ON/OFF” button on remote control itself to start system.
Check the following, and in case of malfunctions please refer to final part of “Section 3: Outdoor Units &
Troubleshooting” of this Service Manual.
1) Checks to be carried out on each Indoor Unit
a. Check if “ON/OFF” button on remote controller allows to start/stop operation of Unit.
b. Check if other buttons on remote controller operate properly too.
c. Check if air outlet motorized flaps (if present) is regular.
d. Check if room temperature value satisfy comfort needs.
e. Check if LED indicators on IR receiver of each Indoor Unit operate properly.
f. Check if Emergency button on each Indoor Unit works properly.
g. Check if condensate water flows properly through drain piping.
h. Check if there is no noise nor anomalous vibration during operation.
i. Carry out test of system in Heating mode too.
2) Outdoor Unit
a. Check if there is no noise nor anomalous vibration during operation.
b. Make sure that supplied air and noise produced by Outdoor Unit do not disturb the neighbourhood.
c. Check there are no refrigerant leakages on refrigerant circuit.
d. Verify there are no electrical leakages towards the Ground.
Caution:
In case of stop of system operation, a protection function is active which prevents immediate restart, unless at
least 3 minutes have elapsed since last stop of compressor.
