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Daikin EWWD380J-SS [9/11] D eimwc01006 11eu 10 192
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D - EIMWC01006-11EU - 10/192
volume of every individual chiller in the system.
The water quality must be in accordance with the
specifications listed the table below:
Circulating
water
Supply
water
Tendency
if out of
criteria
Items to be controlled
pH at 25°C 6.8~8.0 6.8~8.0
corrosion+
scale
Electrical
conductivity
[mS/m] at
25°C
<40 <30
corrosion+
scale
Chloride Ion
[mg Cl˜/l]
<50 <50 corrosion
Sulfate Ion
[mg SO
4
²˜/l]
<50 <50 corrosion
M-alcalinity
(pH4.8)
[mg CaCO
3
/l]
<50 <50 scale
Total hardness
[mg CaCO
3
/l]
<70 <70
scale
Calcium
hardness
[mg CaCO
3
/l]
<50 <50
scale
Silica Ion
[mg SiO
2
/l]
<30 <30
scale
Items to be referred to
Iron
[mg Fe/l]
<1,0 <0,3
corrosion+
scale
Copper
[mg Cu/l]
<1,0 <0,1 corrosion
Sulfide Ion
[mg S²˜/l]
not
detectable
not
detectable
corrosion
Ammonium
Ion
[mg NH
4
+/l]
<1,0 <0,1
corrosion
Remaining
chloride
[mg Cl/l]
<0,3
<0,3
corrosion
Free carbide
[mg CO
2
/l]
<4,0 <4,0
corrosion
Stability index - -
corrosion+
scale
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.
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).
DISCHARGE FROM PRESSURE RELIEF DEVICES
Discharge of the refrigerant into installation area has to be in
accordance with local regulations. If required it is possible to
connect a 1” pipe to each pressure relef valve on the
condenser and ½” pipe to each pressure relief valve on the
evaporator.
Cross section and length of the discharge line must comply
with local codes.
FIELD WIRING
All field wiring and components must be installed by a
licensed electrician and must compy with relevant
European 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.
NOTE Verify on the wiring diagram all electrical actions
mentioned below, in order to understand the operation
of the unit more deeply.
Parts table
F1,2……………………..Main fuses for the unit
L1, 2, 3………………….Main supply terminals
PE……………………… Main earth terminal
S6S……………………..Setpoint override
FS……………………… Flowswitch
Q10……………………..Main isolator switch
---………………………..Field wiring
Power circuit and cable requirements
1 The electrical power supply to the unit should 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.
Switch off the main isolator switvch before making any
connections (switch off the circuit breaker, remove or
switch off the fuses).
Connection of the watercooled water chiller power
supply
1 Using the appropriate cable, connect the power
circuit to the L1, L2 and L3 terminals of the unit.
2 Connect the earth conductor (yellow/green) to the
earthing terminal PE.
Содержание
- Installation operation and maintenance manual 1
- Water cooled screw chillers ewwd120j ss ewwd560j ss condenserless water cooled screw chillers ewld110j ss ewld530j ss refrigerant r 134a 1
- D eimwc01006 11eu 4 192 3
- Ewwd120j ss 280j ss ewld 110j ss 265j ss 3
- Ewwd310j ss 560j ss ewld 290j ss 530j ss 3
- Label identification 3
- Contents content 4
- D eimwc01006 11eu 5 192 4
- Electrical specification 4
- Introducion 4
- Options 4
- Options and feature 4
- Technical specification 4
- D eimwc01006 11eu 6 192 5
- Features 5
- Inspecting and handling the unit 5
- Main components 5
- Operation range 5
- Selection of location 5
- Air or dirt gets in the water circuit problems may occur therefore always take into account the following when connecting the water circuit 6
- D eimwc01006 11eu 7 192 6
- Ewld j version connecting the refrigerant circuit this product is factory charged with 6
- Important information regarding the refrigerant used 6
- Leak test and vacuum drying 6
- The units are equipped with a refrigerant inlet discharge side and a refrigerant outlet liquid side for the connection to a remote condenser this circuit must be provided by a licensed technician and must comply with all relevant european and national regulations precautions when handling piping 6
- Unpacking and placing the unit 1 remove the wooden beams from the unit 2 install vibration mountings in case of an installation where noise and vibration might an impediment 3 set the unit on a solid and level foundation the unit should be installed on a solid base it is recommended to fix the unit on a concrete base with anchor bolts 6
- Air or dirt gets in the water circuit problems may occur therefore always take into account the following when connecting the water circuit 7
- Charging the unit 7
- D eimwc01006 11eu 8 192 7
- Fine tuning of refrigerant charge while unit is in operation 7
- Preparing checking and connecting the water circuit the units are equipped with a water inlet and water outlet for connection to a chiller water circuit this circuit must be provided by a licensed technician and must comply with all relevant european and national regulations 7
- Preparing the unit for connection to the water circuit 7
- Superheat must be between 3 and 8 k subcooling must be between 3 and 8 k 4 verify the oil sightglass level must be within the sightglass 4 verify the liquid line sightglass it should be sealed and not indicate moisture in the refrigerant 4 as long as the liquid line sightglass is not sailed add refrigerant in steps of 1 kg and wait until the 7
- Water inlet of the evaporator 2 flowswitch 3 inlet water sensor 4 water inlet pipe containing the flowswitch and the water inlet temperature sensor 5 victaulic coupling 6 counter pipe 7 field water pipe circuit 8 filter 9 filter and cup 7
- D eimwc01006 11eu 9 192 8
- Water charge flow and quality 8
- Connection of the watercooled water chiller power supply 1 using the appropriate cable connect the power circuit to the l1 l2 and l3 terminals of the unit 2 connect the earth conductor yellow green to the earthing terminal pe 9
- D eimwc01006 11eu 10 192 9
- Discharge from pressure relief devices 9
- Field wiring 9
- Parts table 9
- Piping insulation 9
- Power circuit and cable requirements 1 the electrical power supply to the unit should 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 9
- D eimwc01006 11eu 11 192 10
- D eimwc01006 11eu 12 192 11
- Legend 1s compressor status 1 2s compressor status 2 al analog inputs ao analog output c 3w condenser 3 way valve c l current limit cfs condensator flow switch cle current limit enable cp vfd condenser pump vfd d l demand limit di digital inputs 11
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