Transcript Welcome to Daikin Europe N.V.

EWAP800-C18AJYNN
EWAP800-C18AJYNN
Air Cooled Chiller - Cooling Only
744 kW ÷ 1730 kW
Single Screw Compressor
21-Jul-15
2
TABLE OF CONTENT
A. EWAP-AJYNN range
B. Unit position into the range
C. Technical solution
D. Operating Limits
E. Compressor features
F. Refrigerant Circuit
G. DX shell & tube evaporator
H. Control & remote control
I. Unit delivery
J. Options summary
1. Standard options
2. Options on request
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3
B. UNIT POSITION INTO THE RANGE (1/5)
EWAP-AJYNN– Unit efficiency level
2.80
900
2.70
C10
850
950
C13
C11
C12
C14
C15
C16
2.60
C18
C17
EER
2.50
2.40
900
800
95
C10
0
2.30
C13
C11
C14
C15
C16
C17
C18
C12
2.20
EWAP-AJYNN
2.10
500
600
700
800
900
1000
1100
1200
1300
1400
1500
1600
EWAP-AJYNN/A
1700
1800
1900
2000
kW
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B. UNIT POSITION INTO THE RANGE (2/5)
EWAP-AJYNN: cooling range
EWAPAJYNN
EWAPAJYNN
+OPRN
EWAPAJYNN
+ OPLN
500
600
700
800
2 compressors
3 compressors
2 compressors
3 compressors
2 compressors
3 compressors
900
1000
1100
1200
1300
1400
1500
1600
1700
1800
1900
2000
kW cooling @ Evap. 12/7°C - 35°C OAT
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B. UNIT POSITION INTO THE RANGE (3/5)
EWAP-AJYNN/A: cooling range
EWAPAJYNN
/A
2 compressors
3 compressors
EWAPAJYNN/A+
OPRN
2 compressors
3 compressors
2 compressors
3 compressors
EWAPAJYNN/A
+ OPLN
500
600
700
800
900
1000
1100
1200
1300
1400
1500
1600
1700
1800
1900
2000
kW cooling @ Evap. 12/7°C - 35°C OAT
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B. UNIT POSITION INTO THE RANGE (4/5)
EWAP-AJYNN: sizes distribution
943
790
1026
875
822
1284
1091
963
1158
1092
1426
1353
1271
887
1025
1205
1346
744
887
1025
1205
1346
963
1092
1516
1422
744
822
1583
1271
1650
1547
1484
1484
1422
1547
EWAP-AJYNN
EWAP-AJYNN+OPRN
EWAP-AJYNN+OPLN
500
600
700
800
900
1000
1100
1200
1300
1400
1500
1600
1700
1800
1900
2000
kW cooling @ Evap 12/7°C - 35°C OAT
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B. UNIT POSITION INTO THE RANGE (5/5)
EWAP-AJYNN/A: sizes distribution
854
1027
981
1137
911
1069
911
1069
981
818
1357
1252
1123
954
818
1195
1427
1300
1202
1202
1137
1497
1594
1423
1365
1365
1300
1644
1729
1586
1522
1649
1522
1649
1423
1586
EWAP-AJYNN/A
EWAP-AJYNN/A+OPRN
EWAP-AJYNN/A+OPLN
500
600
700
800
900
1000
1100
1200
1300
1400
1500
1600
1700
1800
1900
2000
kW cooling @ Evap 12/7°C - 35°C OAT
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C. TECHNICAL SOLUTION (1/4)
EWAP-AJYNN version – Technical Solution
EWAP-AJYNN
Helicoidal fans (860 RPM) with good
acoustic performance and no
mechanical vibrations
Compressor antivibration support to
avoid transmission on chiller metal
base-frame
Rubber round washers to avoid metal
to metal contacts which would increase
chiller structural noise
80,5 ÷ 81,5 dB(A)
ISO 3744 - @ 1m
hemispherical field
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C. TECHNICAL SOLUTION (2/4)
EWAP-AJYNN + OPRN version – Technical Solution
EWAP-AJYNN + OPRN
Helicoidal fans with good acoustic
performance and no mechanical
vibrations
Compressor antivibration support to
avoid transmission on chiller metal
base-frame
75 ÷ 77 dB(A)
ISO 3744 - @ 1m
hemispherical field
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Rubber round washers to avoid metal
to metal contacts which would increase
chiller structural noise
Discharge flexible pipe to avoid
vibrations in the condensing section of
the chiller due to the gas pulsations
and compressor vibrations
Fan speed reduction ( 680 RPM ) to
reduce the noise level of the chiller
condensing section
10
C. TECHNICAL SOLUTION (3/4)
EWAP-AJYNN + OPLN version – Technical Solution
EWAP-AJYNN
Helicoidal fans with good acoustic
+OPLN
performance and no mechanical
vibrations
Compressor antivibration support to
avoid transmission on chiller metal
base-frame
72.5 ÷ 73.5 dB(A)
ISO 3744 - @ 1m
hemispherical field
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Compressor sound proof
cabinet with aluminium frame,
metal panels and high density
material inside to absorb
acoustic waves
Rubber round washers to avoid metal
to metal contacts which would increase
chiller structural noise
Discharge flexible pipe to avoid
vibrations in the condensing section of
the chiller due to the gas pulsations
and compressor vibrations
Fan speed reduction ( 680 RPM ) to
reduce the noise level of the chiller
condensing section
11
D. OPERATING LIMITS (1/2)
EWAP-AJYNN Unit Operating Limits
Unit version
Max ambient temperature (at full load)
Min ambient temperature
Max leaving evaporator water temperature
Min leaving evap. water temp. (without glycol)
Min leaving evap. water temp. (with glycol)
Max evaporator DT
Min evaporator DT
EWAP-AJYNN
°C
°C
°C
°C
°C
°C
°C
42
+10 (2)
10
4
-8
6
4
OPRN
38
+10 (2)
10
4
-8
6
4
OPLN
38
+10 (2)
10
4
-8
6
4
Notes:
(1)
When air temperature is lower than +10°c you need the fan speed control
device. It allows the unit working with air temperature down to -10°c.
OPLA allows to reach -18°c.
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D. OPERATING LIMITS (2/2)
EWAP-AJYNN/A – Unit Operating Limits
Unit version
Max ambient temperature (at full load)
Min ambient temperature
Max leaving evaporator water temperature
Min leaving evap. water temp. (without glycol)
Min leaving evap. water temp. (with glycol)
Max evaporator DT
Min evaporator DT
°C
°C
°C
°C
°C
°C
°C
EWAP-AJYNN/A
/A+OPRN
/A+OPLN
46
+10 (2)
10
4
-8
6
4
42
+10 (2)
10
4
-8
6
4
42
+10 (2)
10
4
-8
6
4
Notes:
(1)
When air temperature is lower than +10°c you need the fan speed control
device. It allows the unit working with air temperature down to -10°c.
OPLA allows to reach -18°c
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E. COMPRESSOR FEATURES (1/3)
EWAP-AJYNN – Single Screw Compressor
“ Frame4 ” single screw
compressor
 axial balanced loads
 radial balanced loads
 2 specular compression cycles
 infinitely variable cooling capacity control
 external oil separator
 direct driven screw (no gear)
 6 electrical terminals for Y-D as standard
 fully semi-hermetic design
 composite material on gate rotors
discharge
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compression
suction
14
E. COMPRESSOR FEATURES (2/3)
EWAP-AJYNN – Single Screw Compressor
radial balancing
axial balancing
“ Frame4 ”
better chilled
water stability
Composite material (carbon base
composition) to improve compressor
reliability and energy performances
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Stepless slide valve (oil controlled) to
change compressor capacity to match
exactly the plant thermal request
15
E. COMPRESSOR FEATURES (3/3)
EWAP-AJYNN – Single Screw Compressor
External high efficiency oil separator mounted
on the same compressor metal base frame
Six electrical terminals to allow as standard a
star-delta (Y-D) compressor start.
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“ Frame4 ”
Fully semi-hermetic design to allow
ordinary maintenance and to replace
easily each component if necessary
16
E. REFRIGERANT CIRCUITS
EWAP-AJYNN – Truly Independent Refrigerant
Circuits
EWAP-AJYNN with 3 refrigerant circuits: 3 compressors, 3 expansion valves,
3 condensing sections, 3 evaporating sections in the evaporator’s shell, 3 dryfilters
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E. DRY-EXPANSION SHELL AND TUBE
EWAP-AJYNN - DX (Dry-eXpansion) shell & tube evaporator
1) One pass configuration on refrigerant side (R-407c)
copper tube internally
enhanced
 Better oil circulation and compressor oil return at part load operation
2) Higher water volume content (Vs PHE Plate Heat Exchanger)
 More thermal inertia for the chiller
 Smaller external water tank installation (when required)
 No freezing risk at any chiller load
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 No “water hammer” phenomena damage
18
F. CONTROL & REMOTE CONTROL (1/4)
EWAP-AJYNN – Electrical Panel Features
 Power and control are located in two different sections.
 Main switch: only on OFF position, it allows the access to power section.
 Control section opening is possible also when power is ON.
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F. CONTROL & REMOTE CONTROL (2/4)
EWAP-AJYNN – Microprocessor Control “Microtech II C Plus”
Motherboard with microprocessors
 Unit Controller fully programmed and engineered by Daikin on Carel hardware
 P.I.D. logic (proportional, integrative, derivative)
 Compressor regulated according leaving evaporator water temperature
(LEWT) to match customer set-point within ± 0,2°C
 Easy visual interface with 4 rows and 20 characters display and 15 keypad
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F. CONTROL & REMOTE CONTROL (3/4)
EWAP-AJYNN – Microprocessor Control “Microtech II C Plus”
STANDARD
SPN
 High value control functions implemented as standard into the logic
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F. CONTROL & REMOTE CONTROL (4/4)
EWAP-AJYNN – Microprocessor Control “Microtech II C Plus”
 Easy integration into building automation systems via separate digital
connection for unit start/stop and 4-20 mA signals for chilled water
reset and demand limiting;
 Communications capabilities for remote monitoring, changing of
setpoint, trend logging, alarm and event detection, via a compatible
IBM-PC with PlantVisor 2.0 (EKPV2J) software;
 BMS communication capability via Modbus, BacNet & LonWorks protocol
 Remote communication via modem/GSM (up to 8 chillers with Gateway)
 Compatibility with Daikin EKCSCII (Chiller Sequencing Control)
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I. UNIT DELIVERY (1/2)
EWAP-AJYNN – Unit delivery, moving and lifting
 Unit is delivered EXW (Ex works);
 Each unit is tested at full load before shipping;
 Unit handling must be according to IOM manual.
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I. UNIT DELIVERY (2/2)
EWAP-AJYNN – Unit delivery, moving and lifting
 EWAP950-C18AJYNN/A exceeds dimensions of a standard truck.
 A “long vehicle” is necessary.
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EWAP-AJYNN: OPTIONS SUMMARY (1)
Standard options
 Brine version
 Dual setpoint
 Thermal relays compressors
 Under/over voltage controller
 Condenser Coils Alucoat
 Flow switch for evaporator
 Setpoint reset and demand limit
 Alarm from external device
 Rubber type antivibration mounts
 Evaporator heater
 Evaporator victaulics
 Main switch
 Electronic Expansion valve
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EWAP-AJYNN: OPTIONS SUMMARY (2)
Options on request
 OPSP¹: Single pump
 OPTP¹: Twin pump
 OPTR: Heat recovery
 OPPR: Partial Heat recovery
 OPHF: High ESP fans
 OPRN: Reduced noise
 OPFS: Fan silent








OP57: A/V meter
OPLN: Low noise
OPGA: Gauges
OPCG: Coil guards
OPSS: Soft starter
OPAL: Blank Cu/AI coils
OPSN: Cu/Sn coils
OPCU: Cu/Cu coils
 OPLA: Low ambient
 OPPF: Power factor 0.9
 OP12: Suction stop valve
1
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Unit types
/A: high efficiency
Not available for EWAPC15-18AJYNN and EWAPC15-C18AJYNN/A
26
1. OPTIONS AS STANDARD (1/2)
ALARM FROM EXTERNAL DEVICE – Microprocessor is able to receive an alarm
signal from an external device (pump etc…). User can decide if this alarm signal
will stop or not the unit.
FLOW SWITCH – Supplied separately to be wired and installed on the evaporator
water piping (by others).
COMPRESSOR THERMAL OVER RELAYS – Safety devices against compressor
motor overloading in addition to the normal protection envisaged by the electrical
windings.
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1. OPTIONS AS STANDARD (2/2)
UNDER/OVER VOLTAGE CONTROLLER – Phase monitor to control the
minimum and maximum voltage value that the user can set.
RUBBER TYPE ANTIVIBRATION MOUNTS – Supplied separately, these are
positionned under the base of the unit for “floor installation”.
ALUCOAT CONDENSER COILS – Fins are protected by a special acrylic paint
with a high resistance to corrosion.
EVAPORATOR ELECTRIC HEATER – Electric heater controlled by a thermostat
to protect the evaporator from freezing down -28°C ambient temperature.
ELECTRONIC EXPANSION VALVE – It proposes features that makes it unique:
short openning and closing time, high resolution, positive shut-off function to
eliminate use of additional solenoid valve, highly linear flow capacity,
continous modulation of mass flow without stress in the refrigerant circuit and
corrosion resistance stainless steel body.
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2. OPTIONS ON REQUEST (1/3)
OPSP: Water circulation pump – The pump is unit mounted. Hydronic kit
consists of: one centrifugal pump direct driven, expansion tank, water feed circuit
with pressure gauge, safety valve. The pump motor is protected by a circuit
breaker installed in control panel. The kit is assembled and wired to the control
panel.
OPTP: Two water circulation pumps – The pumps are unit mounted. Hydronic
kit consists of: two centrifugal pumps direct driven, expansion tank, water feed
circuit with pressure gauge, safety valve, check valves, shut-off valves. The
pumps motors are protected by circuit breakers installed in control panel. The kit
is assembled and wired to the control panel.
OPTR: 100% Total heat recovery – Produced with tube bundle placed in a single
shell with the water condensers heads are provided with 2 connections for
entering/leaving heat recovery water and 2 separate connections for condensing
water.
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2. OPTIONS ON REQUEST (2/3)
OPPR: Partial heat recovery – Produced with plate to plate heat exchangers
installed on discharge side of compressor gas. These allow hot water to be
produced up to a maximum temperature of +50°C.
OPFS device: Fan silent – This device allows the continuous variation of the fan
speed, modifying the air flow according to the external temperature conditions. It
allows the unit working with air temperature down to –5÷–10°C. In addition, a
microprocessor clock switches the fan at low speed according to the client setting
(i.e. Night & Day).
OPLA: Low ambient – Continuous fan speed modulation on the first fan of each
circuit. It allows the unit working with air temperature down to –18°C.
OPPF: Power factor 0.9 – Capacitor power factor correction - Installed on the
electrical control panel to ensure it conforms to the plant rules.
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2. OPTIONS ON REQUEST (3/3)
OP12: Suction line shut off valve – Suction shut-off valve
installed on the suction port of the compressor to facilitate
maintenance operation.
OPCG: Coil guards – Metal protection guards fixed on all the external surface of
the condenser coils.
OP57: Ammeter and voltmeter – Digital meters of unit drawn amperes and
voltage values, installed on the electrical control panel.
OPSS: Soft start – Electronic starting device to reduce starting current. An
overload protection is included (no need of compressors thermal relays).
OPCU – To give better protection against corrosion by aggressive environments.
OPSN (new option) – To give better protection against corrosion in aggressive
environments and by salty air.
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