ewad 190-650 ajynn
DESCRIPTION
EWAD 190-650 AJYNN. EWAD 190-650 AJYNN. Air Cooled Chiller - Cooling Only 177 kW ÷ 626 kW Single Screw Compressor. TABLE OF CONTENT. EWAD-AJYNN range Unit position into the range Technical solution Operating Limits Compressor features Refrigerant Circuit DX shell & tube evaporator - PowerPoint PPT PresentationTRANSCRIPT
EWAD190-650AJYNN
2Apr 21, 2023
Air Cooled Chiller - Cooling Only
177 kW ÷ 626 kW
Single Screw Compressor
EWAD190-650AJYNN
3Apr 21, 2023
TABLE OF CONTENTA. EWAD-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
4Apr 21, 2023
EWAD-AJYNN Flexibility
Standard unit
3 noise versions available:
OPRN74,5 ÷ 76,5 dB(A)
OPLN70 ÷ 73 dB(A)
VERSION /Q65 ÷ 66 dB(A)
Version /A
2 noise versions available:
BASE MODEL77,5 ÷ 79 dB(A)
+ OPLN72,5 ÷ 73,5 dB(A)
Version /H
1 noise version available:
BASE MODEL77 ÷ 80,0 dB(A)
A. EWAD-AJYNN RANGE
5Apr 21, 2023
EWAD-AJYNN: Unit efficiency levelB. UNIT POSITION INTO THE RANGE (1/4)
150 200 250 300 350 400 450 500 550 600 650 700 750
2.00
2.15
2.30
2.45
2.60
2.85
3.00
3.15
3.30
EE
R
KW
190
200
230
260
280
300
320
340360
EWAD-AJYNN
400
550500
480
440
600
= with economizer
6Apr 21, 2023
150 200 250 300 350 400 450 500 550 600 650 700 750
2.00
2.15
2.30
2.45
2.60
2.85
3.00
3.15
3.30
EE
R
KW
210
EWAD-AJYNN/Q
B. UNIT POSITION INTO THE RANGE (1/4) EWAD-AJYNN: Unit efficiency level
240
260
320
280
300
340
400
440
500
460
EWAD-AJYNN/A
260
280
320
340
360380
420500 550
600650
= with economizer
7Apr 21, 2023
150 200 250 300 350 400 450 500 550 600 650 700 750
2.00
2.15
2.30
2.45
2.60
2.85
3.00
3.15
3.30
KW
300
EWAD-AJYNN/H
210
200
280240
260320
340
400
420
460
480
500 550600
B. UNIT POSITION INTO THE RANGE (1/4) EWAD-AJYNN: Unit efficiency level
EE
R
= with economizer
8Apr 21, 2023
EWAD-AJYNN BASE MODEL / HIGH EFFICIENCY: cooling range
100 200 300 400 500 600 700
EWAD-AJYNN/H
EWAD-AJYNN/A
EWAD-AJYNN/Q
EWAD-AJYNN
kW cooling @ Evap. 12/7°C - 35°C OAT
2 Compressors
2 Compressors
2 Compressors
B. UNIT POSITION INTO THE RANGE (2/4)
2 Compressors
= with economizer
9Apr 21, 2023
EWAD-AJYNN: sizes distributionB. UNIT POSITION INTO THE RANGE (3/4)
KW200150 250 300 350 400 450 500 550 600 650 700
EWAD-AJYNN EWAD-AJYNN+OPRN EWAD-AJYNN+OPLN
400 440 480 500 550 600
190
200
230
260
280
300
320
340
360 440
480
500
550
600
190
200
230
260
280
300
320
340
360 440
480
500
550
600
10Apr 21, 2023
EWAD-AJYNN: sizes distributionB. UNIT POSITION INTO THE RANGE (3/4)
KW200150 250 300 350 400 450 500 550 600 650 700
EWAD-AJYNN/Q EWAD-AJYNN/H
240 280 320
460210 260 300 340 400
440 500
200
210
240 280
300
320
340 400
420
460
480 550
600260 500
11Apr 21, 2023
EWAD-AJYNN: sizes distributionB. UNIT POSITION INTO THE RANGE (3/4)
KW200150 250 300 350 400 450 500 550 600 650 700
EWAD-AJYNN/A EWAD-AJYNN/A+OPLN
280 320 420
260 340
360
380
500
650
260
280
320
340
360
380 420 500
550
600
550
600
650
12Apr 21, 2023
EWAD-AJYNN – Base model/OPRN - Technical solution
EWAD-AJYNN/A 77,5 ÷ 79,0 dB(A)
EWAD-AJYNN 75,0 ÷ 79 dB(A)
ISO 3744 - @ 1m hemispherical field
BASE MODEL - /A Helicoidal fans (900 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
C. TECHNICAL SOLUTION (1/3)
13Apr 21, 2023
EWAD-AJYNN – OPLN – Technical Solution
70,0 ÷ 73,0 dB(A)
ISO 3744 - @ 1m hemispherical field
OPLN
Compressor sound proof cabinet with aluminium frame, metal panels and high density material inside to absorb acoustic waves
Helicoidal fans with good acoustic performance and no mechanical vibrations
Compressor antivibration support to avoid transmission on chiller metal base-frame
Suction muffler
Fan speed reduction ( 680 RPM ) to attenuate the noise level of the chiller condensing section
Rubber round washers to avoid metal to metal contacts which would increase chiller structural noise
C. TECHNICAL SOLUTION (2/3)
14Apr 21, 2023
EWAD-AJYNN – /Q – Technical Solution
65,0 ÷ 66,0 dB(A)
ISO 3744 - @ 1m hemispherical field
/Q
Compressor sound proof cabinet with aluminium frame, metal panels and high density material inside to absorb acoustic wave
Helicoidal fans with good acoustic performance and no mechanical vibrations
Compressor antivibration support to avoid transmission on chiller metal base-frame
Suction muffler & discharge muffler
Fan speed reduction ( 500 RPM ) to reduce the noise level of the chiller condensing section
Enhanced condensing section of the chiller
Rubber round washers to avoid metal to metal contacts which would increase chiller structural noise
C. TECHNICAL SOLUTION (3/3)
15Apr 21, 2023
EWAD-AJYNN – Unit Operating Limits (Base model)
Envelope of EWAD-AJYNN
-20
-10
0
10
20
30
40
-10 -5 0 5 10 15 20
Leaving water temperature (°C)
Ou
tsid
e A
mb
ien
t T
em
pe
ratu
re (
°C)
Check on rating tables for part load operation of each unit
OPFS
OPLA
D. OPERATING LIMITS (1/3)
16Apr 21, 2023
EWAD-AJYNN/A – Unit Operating Limits
Envelope of EWAD-AJYNN/A
-20
-10
0
10
20
30
40
50
-10 -5 0 5 10 15 20
Leaving Water Temperature (°C)
Ou
tsid
e A
mb
ien
t T
emp
erat
ure
(°C
)
Check on rating tables for part load operation of each unit
Gly
col
app
lica
tio
n
OPFS
OPLA
D. OPERATING LIMITS (2/3)
17Apr 21, 2023
EWAD-AJYNN/H – Unit Operating Limits (High Ambient)
Envelopes of EWAD-AJYNN/H
-20
-10
0
10
20
30
40
50
60
-10 -5 0 5 10 15 20
Leaving Water Temperature (°C)
Ou
tsid
e A
mb
ien
t T
em
pe
ratu
re (
°C)
Check on rating tables for part load operation of each unit
Gly
col a
pp
licat
ion
OPFS
OPLA
D. OPERATING LIMITS (3/3)
18Apr 21, 2023
EWAD-AJYNN – Single Screw Compressor
“ Frame3100 ” single screw compressor
axial balanced loads
infinitely variable cooling capacity control
integrated oil separator
direct driven screw (no gear)
6 electrical terminals for Y-D as standard
fully semi-hermetic design
composite material on gate rotors
E. COMPRESSOR FEATURES (1/2)
“ Frame3200 ” single screw compressorsuctioncompressiondischarge
EWAD 190 360 AJYNN
EWAD 380 650 AJYNN
19Apr 21, 2023
EWAD-AJYNN – Single Screw Compressor
Six electrical terminals to allow as standard star-delta (Y-D) compressor start. For low inrush current and reduce starting torque
Fully semi-hermetic design to allow ordinary maintenance and to replace easily each component if necessary
Composite material (carbon base composition) to improve compressor reliability and energy performances
Stepless slide valve (oil controlled) to change compressor capacity to match exactly the plant thermal request
E. COMPRESSOR FEATURES (2/2)
20Apr 21, 2023
EWAD-AJYNN – Truly Independent Refrigerant Circuits
EWAD-AJYNN with 2 refrigerant circuits: 2 compressors, 2 expansion valves, 2 condensing sections, 2 evaporating sections in the evaporator’s shell, 2 dry-filters
F. REFRIGERANT CIRCUIT
21Apr 21, 2023
EWAD-AJYNN - DX (Dry-eXpansion) shell & tube evaporator
1) One pass configuration on refrigerant side (R-134a)
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
No “water hammer” phenomena damage
copper tube internally enhanced
G. DX SHELL AND TUBE EVAPORATOR
22Apr 21, 2023
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.
EWAD-AJYNN – Electrical Panel FeaturesH. CONTROL & REMOTE CONTROL (1/4)
23Apr 21, 2023
EWAD-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
H. CONTROL & REMOTE CONTROL (2/4)
24Apr 21, 2023
EWAD-AJYNN – Microprocessor Control “Microtech II C Plus”
High value control functions implemented as standard into the logic
H. CONTROL & REMOTE CONTROL (3/4)
STANDARD SPN
25Apr 21, 2023
EWAD-AJYNN – Microprocessor Control “Microtech II C Plus”H. CONTROL & REMOTE CONTROL (4/4)
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)
26Apr 21, 2023
EWAD-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.
2355
4000
2400
2234 L
Procedure for extracting machine from the container.
Container Kit Optional
I. UNIT DELIVERY (1/2)
27Apr 21, 2023
Daikin – Unit delivery, moving and lifting
2340÷4940
2÷4 units can be loaded on the same truck.
I. UNIT DELIVERY (2/2)
28Apr 21, 2023
EWAD-AJYNN: OPTIONS SUMMARY (1)
Victaulic on evaporator
Alarm from external device
Rubber type antivibration mounts
Evaporator heater
Main switch
Suction stop valve
Standard options Brine version
Dual setpoint
Star delta compressor starter
Thermal relays compressors
Under/over voltage controller
Condenser Coils Alucoat
Flow switch for evaporator
Setpoint reset and demand limit
29Apr 21, 2023
EWAD-AJYNN: OPTIONS SUMMARY (2)
OPLN5: Low noise
OPGA Gauges
OPCG Coil guards
OPAL Blank Cu/AI coils
OPSN Cu/Sn coils
OPCU Cu/Cu coils
1 Not available for EWAD-AJYNN/Q2 Not available for EWAD-AJYNN/Q
3 Offered as standard for EWAD-AJYNN/Q4 Not available for EWAD-AJYNN/Q and EWAD-AJYNN/H5 Not available for EWAD-AJYNN/Q and EWAD-AJYNN/H
Options on request OPSP¹: Single pump
OPTP¹: Twin pump
OPHP²: High ESP single Pump
OPHT²: High ESP twin Pump
OPTR: Total heat recovery
OPPR: Partial heat recovery
OPFS³: Fan silent
OPLA4: Low ambient
OPPF: Power factor 0.9 OPEX: Electronic Expansion valve /Q: extra low noise
/A: high efficiency /H: high ambiant
Unit types
30Apr 21, 2023
1. OPTIONS AS STANDARD (1/2)
SUCTION LINE SHUT OFF VALVE – Suction shut-off valve installed on the suction port of the compressor to facilitate maintenance operation.
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.
31Apr 21, 2023
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.
1. OPTIONS AS STANDARD (2/2)
32Apr 21, 2023
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 shell and tube heat exchangers to produce hot water up to 50÷55° C. The heat exchangers are mounted on the refrigerant circuits parallel to the condenser coils to remove all the condensation heat.
33Apr 21, 2023
2. OPTIONS ON REQUEST (2/3)
OPPR: Partial heat recovery – Produced with plate-to-plate heat exchangers installed between the compressor discharge and the condenser coil. These allow hot water to be produced up to a maximum temperature of 55°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.
34Apr 21, 2023
OPEX: 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
OPCG: Coil guards – Metal protection guards fixed on all the external surface of the condenser coils.
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.
2. OPTIONS ON REQUEST (3/3)
35Apr 21, 2023
Engineered for flexibility and performance.™