Daikin EWWT100Q - 10 Before Start-Up

D-EIMHP01702-23_00EN- 66/72
10 BEFORE START-UP
The unit must be started for the first time ONLY by DAIKIN authorised personnel.
The unit must absolutely not be started, even for a very short period of time, without having checked it in
minute detail filling out the following list at the same time.
Checks to be performed before starting the unit
 1
Check for exterior damage
 2
Open all the closing valves
 3
Make sure that all the parts of the unit are pressurized with refrigerant (evaporator,
condenser, compressors) before connecting it to the hydraulic circuit.
 4
Install the main fuses, earthing leakage detector and main switch. Fuses
recommended: aM compliant with the IEC 269-2 standard.
For the dimensions, check the wiring diagram.
 5
Connect the main voltage and check that it falls within the limits allowed of ±10%
compared to the classification listed on the name plate.
The main power supply must be arranged so that it can be turned on or off
independently from that of other parts of the system or other appliances in general.
Check the wiring diagram, terminals L1, L2 and L3.
 6
Install the water filter kit/s (also when not supplied) at the entrance of the
exchangers.
 7
Supply water to the exchangers and make sure that the flow falls within the limits
shown in the table in the "Load, flow and quality of the water" paragraph.
 8
The pipes must be completely flushed out. See the chapter "Preparation, check
and connection of the water circuit".
 9
Connect the contact/s of the pump in series with the contact of the flow meter/s so
that the unit can only be activated when the water pumps are operating, and the
flow of water is sufficient.
 10
Check the level of the oil in the compressors.
 11
Check that all the water sensors are fastened correctly in the heat exchanger (see
also sticker applied on the heat exchanger).
NOTE - Before starting the unit, read the operating manual provided with it. It will help you to better understand the operation of the
equipment and the relative electronic controller and close the doors of the electric panel.
Open the isolation and/or shut off valves
Before start-up, make sure that all the isolation and/or switch off valves are completely open.
Note
This list must be completed and sent to the local Daikin Service office at least two weeks before the start
date.