Point For Attention Regarding Quality Of The Public Electric Power Supply; Interconnection Cables; Before Starting; How To Continue - Daikin EWLQ014KBW1N Manuel D'installation

Point for attention regarding quality of the public
electric power supply
This equipment complies with EN/IEC 61000-3-11
that the system impedance Z
the interface point between the user's supply and the public
system. It is the responsibility of the installer or user of the
equipment to ensure, by consultation with the distribution
network operator if necessary, that the equipment is connected
only to a supply with a system impedance Z
equal to Z .
max
Z (Ω)
max
EWLQ014
0.28
EWLQ025
0.23
EWLQ033
0.21
EWLQ033 0.22
EWLQ064
0.20
Only for EWLQ025~064: Equipment complying with
(2)
EN/IEC 61000-3-12

Interconnection cables

Voltage free contacts
The PCB is provided with some voltage free contacts to indicate
the status of the unit.
The PCB is also provided with a voltage free contact for the
operation of fans.
When the compressor is running, the contact is closed and a fan
contact can be activated.
These voltage free contacts can be wired as described on the
wiring diagram.
Remote inputs
Besides the voltage free contacts, there are also possibilities to
install remote inputs.
They can be installed as shown on the wiring diagram.
(1) European/International Technical Standard setting the limits for voltage
changes, voltage fluctuations and flicker in public low-voltage supply
systems for equipment with rated current ≤75 A.
(2) European/International Technical Standard setting the limits for harmonic
currents produced by equipment connected to public low-voltage systems
with input current >16 A and ≤75 A per phase.
EWLQ014~064KBW1N
Condenserless water-cooled water chillers
D­EIMHP01108­17EU
(1)
provided
is less than or equal to Z
sys max
less than or
sys
B
EFORE STARTING
The unit should not be started, not even for a very short
period of time, before the following pre-commissioning
at
checklist is filled out completely.
tick
when
checked standard steps to go through before starting the unit
1
Check for external damage.
2 Install main fuses, earth leak detector and main switch.
Recommended fuses: aM according to IEC standard 269-2.
Refer to the wiring diagram for size.
3 Supply the main voltage and check if it is within the allowable
±10% limits of the nameplate rating.
The electrical main power supply must be arranged so, that it
can be switched on or off independently of the electrical supply
to other items of the plant and equipment in general.
Refer to the wiring diagram, terminals N, L1, L2 and L3.
4 Supply water to the evaporator and verify if waterflow is within
the limits as given in the table under "Water charge, flow and
quality" on page 6.
5 The piping must be completely purged. See also chapter
"Checking the water circuit" on page 5.
6 Connect the flowswitch and pumpcontact, so that the unit
can only come in operation when the waterpumps are running
and the waterflow is sufficient. Make sure a water filter is
installed before the water inlet of the unit.
7
Connect the optional field wiring for pumps start-stop.
8
Connect the optional field wiring for remote control.
NOTE Try to reduce the drilling in the unit to a minimum.
If drilling is impreventable, remove the iron filling
thoroughly in order to prevent surface rust!
It is necessary to read the operation manual deli-
vered with the unit before operating the unit. It will
contribute to understand the operation of the unit
and its electronic controller.
Verify on the wiring diagram all electrical actions
mentioned above, in order to understand the
operation of the unit more deeply.
Close all switch box doors after installation of the
unit.
I do confirm having executed and checked all the above
mentioned items.
Date
Keep for future reference.
H
OW TO CONTINUE
After installation and connection of the packaged water-cooled water
chiller, the complete system must be checked and tested as
described in "Checks before initial start-up" in the operation manual
supplied with the unit.
Fill out the brief operation instructions form and fix it visibly near the
operating site of the refrigeration system.
Signature
Installation manual
7