ewap 800-c18 ajynn

EWAP800-C18AJYNN

2Apr 21, 2023

EWAP800-C18AJYNNAir Cooled Chiller - Cooling Only

744 kW ÷ 1730 kW

Single Screw Compressor

3Apr 21, 2023

TABLE OF CONTENTA. 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

4Apr 21, 2023

EWAP-AJYNN– Unit efficiency level

C18

C16C15C14C13

C12C11

C10950900

C18

C17

C16C15

C14C13

C12C11

C10

950

900

850

2.10

2.20

2.30

2.40

2.50

2.60

2.70

2.80

500 600 700 800 900 1000 1100 1200 1300 1400 1500 1600 1700 1800 1900 2000

kW

EE

R

EWAP-AJYNN EWAP-AJYNN/A

B. UNIT POSITION INTO THE RANGE (1/5)

C17800

5Apr 21, 2023

EWAP-AJYNN: cooling range

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


EWAP- AJYNN

EWAP- AJYNN +OPRN

EWAP-AJYNN + OPLN

3 compressors

3 compressors2 compressors

2 compressors


6Apr 21, 2023

EWAP-AJYNN/A: cooling range

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


EWAP- AJYNN/A

EWAP- AJYNN/A+OPRN

EWAP-AJYNN/A + OPLN

3 compressors


2 compressors


7Apr 21, 2023

EWAP-AJYNN: sizes distributionB. UNIT POSITION INTO THE RANGE (4/5)

790 1091

1353 1516

1583

1650

887

963 1092

1205

1271 1422

1484

1547

744 887

963 1092

1205

1271 1422

1484

1547

14261284

11581026

943

875

13461025

822

744

822

1025 1346

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

EWAP-AJYNN EWAP-AJYNN+OPRN

EWAP-AJYNN+OPLN

8Apr 21, 2023

EWAP-AJYNN/A: sizes distribution

1027 1195 1357 1497

1594

1644

1729

1069 1202 1365 1522

1586

1649

1069 1202 1365 1522

1586

1649

142712521123954

854

142313001137981

911

818

818

911

981 1137 1300 1423

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

EWAP-AJYNN/A EWAP-AJYNN/A+OPRN

EWAP-AJYNN/A+OPLN


9Apr 21, 2023

EWAP-AJYNN version – Technical Solution

80,5 ÷ 81,5 dB(A)

ISO 3744 - @ 1m

hemispherical field

EWAP-AJYNNHelicoidal 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

C. TECHNICAL SOLUTION (1/4)

10Apr 21, 2023

EWAP-AJYNN + OPRN version – Technical Solution

75 ÷ 77 dB(A)

ISO 3744 - @ 1m

hemispherical field

EWAP-AJYNN + OPRNHelicoidal fans with good acoustic performance and no mechanical vibrations



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


11Apr 21, 2023

EWAP-AJYNN + OPLN version – Technical Solution

72.5 ÷ 73.5 dB(A)

ISO 3744 - @ 1m

hemispherical field

EWAP-AJYNN +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



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

12Apr 21, 2023

EWAP-AJYNN Unit Operating Limits

EWAP-AJYNN OPRN OPLN

Max ambient temperature (at full load) °C 42 38 38Min ambient temperature °C +10 (2) +10 (2) +10 (2)Max leaving evaporator water temperature °C 10 10 10Min leaving evap. water temp. (without glycol) °C 4 4 4Min leaving evap. water temp. (with glycol) °C -8 -8 -8Max evaporator T °C 6 6 6Min evaporator T °C 4 4 4

Notes:

Unit version

(1)

D. OPERATING LIMITS (1/2)

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.

13Apr 21, 2023

EWAP-AJYNN/A – Unit Operating Limits

EWAP-AJYNN/A /A+OPRN /A+OPLN

Max ambient temperature (at full load) °C 46 42 42Min ambient temperature °C +10 (2) +10 (2) +10 (2)Max leaving evaporator water temperature °C 10 10 10Min leaving evap. water temp. (without glycol) °C 4 4 4Min leaving evap. water temp. (with glycol) °C -8 -8 -8Max evaporator T °C 6 6 6Min evaporator T °C 4 4 4

Notes:

Unit version

(1)

D. OPERATING LIMITS (2/2)

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

14Apr 21, 2023

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 rotorssuctioncompressiondischarge

E. COMPRESSOR FEATURES (1/3)

15Apr 21, 2023


“ Frame4 ”radial balancing axial balancing

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

better chilled water stability


16Apr 21, 2023


“ Frame4 ”

Six electrical terminals to allow as standard a star-delta (Y-D) compressor start.

External high efficiency oil separator mounted on the same compressor metal base frame

Fully semi-hermetic design to allow ordinary maintenance and to replace easily each component if necessary


17Apr 21, 2023

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 dry-filters

E. REFRIGERANT CIRCUITS

18Apr 21, 2023

EWAP-AJYNN - DX (Dry-eXpansion) shell & tube evaporator

1) One pass configuration on refrigerant side (R-407c)

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

E. DRY-EXPANSION SHELL AND TUBE

19Apr 21, 2023

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.

F. CONTROL & REMOTE CONTROL (1/4)

20Apr 21, 2023

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


21Apr 21, 2023


High value control functions implemented as standard into the logic


STANDARD SPN

22Apr 21, 2023



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)

23Apr 21, 2023

Unit is delivered EXW (Ex works); Each unit is tested at full load before shipping; Unit handling must be according to IOM manual.

EWAP-AJYNN – Unit delivery, moving and lifting

I. UNIT DELIVERY (1/2)

24Apr 21, 2023

EWAP950-C18AJYNN/A exceeds dimensions of a standard truck. A “long vehicle” is necessary.

Up to 14570 m

m

EWAP-AJYNN – Unit delivery, moving and liftingI. UNIT DELIVERY (2/2)

25Apr 21, 2023

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

26Apr 21, 2023

EWAP-AJYNN: OPTIONS SUMMARY (2)

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

1 Not available for EWAPC15-18AJYNN and EWAPC15-C18AJYNN/A

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

OPLA: Low ambient

OPPF: Power factor 0.9

OP12: Suction stop valve

/A: high efficiency

Unit types

27Apr 21, 2023

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.

28Apr 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.

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.

1. OPTIONS AS STANDARD (2/2)

29Apr 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 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.

30Apr 21, 2023


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.

31Apr 21, 2023

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.


32Apr 21, 2023

ewap 800-c18 ajynn

Documents

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metal contacts

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