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Daikin EWWP028KBW1N [6/12] Before starting
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Installation manual
4
EWWP014~065KBW1N
Packaged water-cooled water chillers
4PW61659-1 – 07.2010
PIPING INSULATION
The complete water circuit, inclusive all piping, must be insulated to
prevent condensation and reduction of the cooling capacity.
Protect the water piping against water freezing during winter period
(e.g. by using a glycol solution or heatertape).
FIELD WIRING
Parts table
F1,2,3 .....................Main fuses for the unit
H3P ........................Indication lamp alarm
H4P, H5P................Indication lamp operation compressor circuit 1,
circuit 2
PE ..........................Main earth terminal
S7S ........................Remote cooling/heating change-over valve or
dual setpoint
S9S ........................Remote start/stop switch or dual setpoint
- - -..........................Field wiring
Power circuit and cable requirements
1 The electrical power supply to the unit 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.
2 A power circuit must be provided for connection of the unit. This
circuit must be protected with the required safety devices, i.e. a
circuit breaker, a slow blow fuse on each phase and an earth
leak detector. Recommended fuses are mentioned on the wiring
diagram supplied with the unit.
Connection of the water-cooled water chiller power
supply
1 Using the appropriate cable, connect the power circuit to the N,
L1, L2 and L3 terminals of the unit (cable section 2.5~10 mm
2
).
2 Connect the earth conductor (yellow/green) to the earthing
terminal PE.
Point for attention regarding quality of the public
electric power supply
■ This equipment complies with EN/IEC 61000-3-11
(1)
provided
that the system impedance Z
sys
is less than or equal to Z
max
at
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
sys
less than or
equal to Z
max
.
■ Only for EWWP028~065: Equipment complying with
EN/IEC 61000-3-12
(2)
Interconnection cables
■ Voltage free contacts
The PCB is provided with some voltage free contacts to indicate
the status of the unit. 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.
BEFORE STARTING
The water pressure should not exceed the maximum
working pressure of 10 bar.
NOTE
Provide adequate safeguards in the water circuit to
make sure that the water pressure will never exceed
the maximum allowable working pressure.
All field wiring and components must be installed by a
licensed electrician and must comply with relevant Euro-
pean and national regulations.
The field wiring must be carried out in accordance with the
wiring diagram supplied with the unit and the instructions
given below.
Be sure to use a dedicated power circuit. Never use a
power supply shared by another appliance.
Switch off the main isolator switch before making any
connections (switch off the circuit breaker, remove or
switch off the fuses).
(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.
Z
max
(Ω)
EWWP014 0.28
EWWP022 0.23
EWWP028 0.22
EWWP035 0.21
EWWP045 0.22
EWWP055 0.21
EWWP065 0.20
(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.
The unit should not be started, not even for a very short
period of time, before the following pre-commissioning
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 3.
■
5 The piping must be completely purged. See also chapter
"Checking the water circuit" on page 2.
■
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.
Содержание
- Installation manual 1
- Packaged water cooled water chillers 1
- Daikin europe n v 2
- En60335 2 40 2
- Ewwp014kbw1n ewwp022kbw1n ewwp028kbw1n ewwp035kbw1n ewwp045kbw1n ewwp055kbw1n ewwp065kbw1n 2
- Jean pierre beuselinck general manager ostend 1st of july 2010 2
- Machinery 2006 42 ec electromagnetic compatibility 2004 108 ec 2
- Pw61842 3 2
- Electrical specifications 3
- Electrical specification 3
- Features 3
- Installation manual 3
- Introduction 3
- Options 3
- Options and feature 3
- Options and features 3
- Technical specifications 3
- Technical specification 3
- Ain component 4
- Checking the water circuit 4
- Election of location 4
- Hecking the water circuit 4
- Important information regarding the refrigerant used 4
- Inspecting and handling the unit 4
- Main components 4
- Mportant information regarding the refrigerant used 4
- Npacking and placing the unit 4
- Nspecting and handling the unit 4
- Operation range 4
- Peration range 4
- Selection of location 4
- Unpacking and placing the unit 4
- A terminal x65a is provided in the switch box for the electrical connection of the flowswitch s10l 5
- Air purge valves must be provided at all high points of the system the vents should be located at points which are easily accessible for servicing 5
- All additional water piping must be installed on the system according to the piping diagram as mentioned in the operation manual the flowswitch must be connected as described on the wiring diagram see also chapter before starting on page 4 5
- Ater charg 5
- Ater quality specifications 5
- Connecting the water circuit 5
- Flow and quality 5
- If air moisture or dust gets in the water circuit problems may occur therefore always take into account the following when connecting the water circuit 5
- It is very important to install the flowswitch as shown in the figure observe the position of the flowswitch in relation to the direction of the water flow if the flowswitch is mounted in an other position the unit is not protected properly against freezing 5
- Onnecting the water circuit 5
- Shut off valves must be installed at the unit so that normal servicing of the water filter can be accomplished without draining the complete system 5
- The water filter must be installed in front of the unit for removing dirt from the water to prevent damage to the unit or blockage of the evaporator or condenser the water filter must be cleaned on a regular base 5
- The flowswitch must be installed in the water outlet pipe of the evaporator to prevent the unit from operating at a water flow which is too low 5
- To assure proper operation of the unit a minimum water volume is required in the system and the water flow through the evaporator must be within the operation range as specified in the table below 5
- Water charge flow and quality 5
- Water quality specifications 5
- Before starting 6
- Connection of the water cooled water chiller power supply 6
- Efore starting 6
- Field wiring 6
- Ield wiring 6
- Interconnection cables 6
- Iping insulation 6
- Parts table 6
- Piping insulation 6
- Point for attention regarding quality of the public electric power supply 6
- Power circuit and cable requirements 6
- 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 7
- Fill out the brief operation instructions form and fix it visibly near the operating site of the refrigeration system 7
- How to continue 7
- I do confirm having executed and checked all the above mentioned items 7
- Keep for future reference 7
- Ow to continue 7
- Brief operation instructions ewwp kb packaged water cooled water chiller 11
- Quipment technical data 11
- Up and shut down 11
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