background image

 

Operation manual

 

1

 

EWLP012~065KAW1N

 

Condenserless water-cooled water chillers

 

4PW30043-1

 

C

 

ONTENTS

 

Page

 

Introduction ....................................................................................... 1

 

Technical specifications ............................................................................. 1
Electrical specifications ............................................................................. 2

 

Description ........................................................................................ 2

 

Function of the main components.............................................................. 3
Safety devices............................................................................................ 3
Internal wiring - Parts table ........................................................................ 4

 

Before operation................................................................................ 5

 

Checks before initial start-up ..................................................................... 5
Water supply .............................................................................................. 5
Power supply connection and crankcase heating...................................... 5
General recommendations ........................................................................ 5

 

Operation .......................................................................................... 5

 

Digital controller ......................................................................................... 5
Working with the EWLP units .................................................................... 6
Advanced features of the digital controller................................................. 8

 

Troubleshooting ............................................................................... 11

Maintenance.................................................................................... 12

 

Maintenance activities ............................................................................. 12
Disposal requirements ............................................................................. 12

 

I

 

NTRODUCTION

 

This operation manual concerns condenserless water-cooled water
chillers of the Daikin EWLP-KA series. These units are provided for
indoor installation and used for cooling applications. The EWLP units
can be combined with Daikin fan coil units or air handling units for air
conditioning purposes. They can also be used for supplying water for
process cooling.

This manual has been prepared to ensure adequate operation and
maintenance of the unit. It will tell you how to use the unit properly
and will provide help if problems occur. The unit is equipped with
safety devices, but they will not necessarily prevent all problems
caused by improper operation or inadequate maintenance. 

In case of persisting problems contact your local Daikin Dealer.

 

Technical specifications

 

(1)

EWLP012KAW1N

EWLP040KAW1N

EWLP020KAW1N

EWLP055KAW1N

EWLP026KAW1N

EWLP065KAW1N

EWLP030KAW1N

 

Condenserless water-cooled water chillers

 

Operation manual

 

READ THIS MANUAL ATTENTIVELY BEFORE STARTING
UP THE UNIT. DO NOT THROW THIS MANUAL AWAY.
KEEP IT IN YOUR FILES FOR FUTURE REFERENCE.
Read the chapter 

"Overview of the user parameters" on

page 8

 before changing the parameters. 

 

Before starting up the unit for the first time, make sure that
it has been properly installed. It is therefore necessary to
carefully read the installation manual supplied with the unit
and the recommendations listed in "Before starting".

 

(1) Refer to the engineering data book for the complete list of specifications.

 

General EWLP

 

012

020

026

030

 

Dimensions HxWxD

 

(mm)

 

600x600x600

Machine weight

 

(kg)

 

104

138

144

149

Connections

• condenser 

discharge 
connection 
(copper)

 

(mm)

 

12.7 flare

19.1 flare

19.1 flare

19.1 flare

• condenser liquid 

connection 
(copper)

 

(mm)

 

9.52 flare

12.7 flare

12.7 flare

12.7 flare

 

General EWLP

 

040

055

065

 

Dimensions HxWxD

 

(mm)

 

600x600x1200

Machine weight

 

(kg)

 

252

265

274

Connections

• condenser 

discharge 
connection 
(copper)

 

(mm)

 

2x 19.1 flare

2x 19.1 flare

2x 19.1 flare

• condenser liquid 

connection 
(copper)

 

(mm)

 

2x 12.7 flare

2x 12.7 flare

2x 12.7 flare

 

Compressor EWLP

 

012

020

026

030

 

Model

 

JT140BF-YE JT212DA-YE JT300DA-YE JT335DA-YE

 

Speed

 

(rpm)

 

2900

Oil type

FVC68D

Oil charge volume

 

(l)

 

1.5

2.7

2.7

2.7

Refrigerant type

R407C

 

Evaporator

 

Type

brased plate heat exchanger

Min. water volume

 

(l)

 

62.1

103

134

155

Water flow range

 

(l/min)

 

17~69

29~115

38~153

45~179

 

Condenser

 

refer to engeneering specifications as published by the supplier of your 
remote condenser

 

Compressor EWLP

 

040

055

065

 

Model

 

2x 

 

JT212DA-YE

 

2x 

 

JT300DA-YE

 

2x 

 

JT335DA-YE

 

Speed

 

(rpm)

 

2900

Oil type

FVC68D

Oil charge volume

 

(l)

 

2x 2.7

2x 2.7

2x 2.7

Refrigerant type

R407C

 

Evaporator

 

Type

brased plate heat exchanger

Min. water volume

 

(l)

 

205

268

311

Water flow range

 

(l/min)

 

57~229

77~307

89~359

 

Condenser

 

refer to engeneering specifications as published by the supplier of your 
remote condenser

Содержание Hydrocube EWLP012KAW1N

Страница 1: ...OPERATION MANUAL EWLP012KAW1N EWLP020KAW1N EWLP026KAW1N EWLP030KAW1N EWLP040KAW1N EWLP055KAW1N EWLP065KAW1N Condenserless water cooled water chillers...

Страница 2: ...THROW THIS MANUAL AWAY KEEP IT IN YOUR FILES FOR FUTURE REFERENCE Read the chapter Overview of the user parameters on page 8 before changing the parameters Before starting up the unit for the first t...

Страница 3: ...Hz 50 Voltage V 400 Voltage tolerance 10 Recommended fuses aM 3x 40 3x 50 3x 50 Compressor Phase 3 Frequency Hz 50 Voltage V 400 Nominal running current A 11 6 14 7 16 8 Control Phase 1 Frequency Hz...

Страница 4: ...I O PCB A2P input output The I O PCB A2P contains a reverse phase protector The reverse phase protector detects if the 3 phases of the power supply are connected correctly If a phase is not connected...

Страница 5: ...ut having to drain the water circuit Water filter delivered with the unit installed in the field The filter installed in front of the unit removes dirt from the water to prevent damage to the unit or...

Страница 6: ...Switch on the circuit breaker on the unit Make sure that the unit is OFF on the controller 2 The crankcase heater is switched on automatically 3 Check the supply voltage on the supply terminals L1 L2...

Страница 7: ...also be caused by an overcharge of refrigerant Working pressure It is important to check the high and low pressure of the refrigerant circuit to ensure the proper operation of the unit and to guarant...

Страница 8: ...normal operation displaying the inlet water temperature In the second case the display will start flashing Approximately 40 seconds later the controller leaves the list of direct para meters The inlet...

Страница 9: ...appear in the following order d to define the measurement unit C or F c7 to define the time delay between the pump startup and the compressor startup c8 to define the time delay between the unit shut...

Страница 10: ...e delay between pump and compressor startup User parameter c7 allows you to define the time delay between the pump startup and the compressor startup The default limit and step values for the time del...

Страница 11: ...eration displaying the inlet water temperature In the second case the display starts flashing Approximately 40 seconds later the controller leaves the list of user parameters without saving the modifi...

Страница 12: ...start but the T LED is flashing Symptom 3 The unit does not start and the T LED does not light up Symptom 4 One of the following safety devices is activated When carrying out an inspection on the sup...

Страница 13: ...the fans turn freely Clean if necessary Dirty or partially blocked condenser Remove any obstacle and clean condenser coil using brush and blower Inlet air temperature of the condenser is too high The...

Страница 14: ...he figures below represent the average saturated temperature of R407C in relation to the pressure readout High pressure side Low pressure side conditions high pressure 20 bar subcool 3 C NOTES 10 20 1...

Страница 15: ...NOTES NOTES...

Страница 16: ...Zandvoordestraat 300 B 8400 Oostende Belgium 4PW30043 1...

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