Daikin EWAQ080DAYN Operation Manual Download Page 9

EWAQ080~260DAYN
Packaged air-cooled water chillers
4PW35556-1E

Operation manual

8

O

PERATION

The EWAQ units are equipped with a digital controller (located
behind the service panel) offering a user-friendly way to set up, use
and maintain the unit.

This part of the manual has a task-oriented, modular structure. Apart
from the first section, which gives a brief description of the controller
itself, each section or subsection deals with a specific task you can
perform with the unit.

Depending on the unit there are one or two cooling circuits in the
system. The units EWAQ130~260 exist out of two circuits, whereas
the units 100 only have one circuit. These circuits are
generally named C1 and C2 in the following descriptions. So all
information about circuit 2 (C2) is not applicable for 100
units.

Digital controller

User interface

The digital controller consists of an alphanumeric display, labelled
keys which you can press and a number of LEDs.

Digital controller and digital remote controller (EKRUPG)

Figure - Digital (remote) controller

How to enter a menu

Scroll through the main menu using the 

 and 

Ì

 keys to go to the

menu of your choice. Push the 

 key to enter the selected menu.

Access to the setpoints menu (

) and the usersettings menu

(

Å

) is protected by a password, refer to 

"Changing the user

password" on page 19

.

The cool/heat menu is not available for EWAQ units.

Connection of a remote digital controller to the unit

For a remote digital controller a cable length of up to 500 metres
between the remote digital controller and the unit is allowed. This
gives the opportunity to control the unit from a considerable distance.
Refer to "Cable for remote digital controller" in the installation manual
for cable specifications.

These restrictions are the same for units in a DICN configuration.

Working with the unit

This chapter deals with the everyday usage of the unit. Here, you will
find how to perform routine tasks, such as:

"Setting the language" on page 8

"Switching the unit on" on page 8

"Consulting actual operational information" on page 9

"Adjusting the temperature setpoint" on page 10

"Resetting the unit" on page 10

Setting the language

If desired, the operating language can be changed to any of the
following languages: English, German, French, Spanish or Italian.

1

Enter the 

Å

 usersettings menu. Refer to chapter 

"How to enter

a menu" on page 8

.

2

Go to the Language submenu of the 

Å

 usersettings menu using

the 

 and 

Ì

 keys and press the 

 key to enter.

3

Press 

  to change the operating language until the desired

language is active.

The controller is factory set to English.

Switching the unit on

1

Press the 

œ

 key on the controller.

Depending on whether or not a remote ON/OFF switch has
been configured (refer to the installation manual), the following
conditions may occur.
When no remote ON/OFF switch is configured, the LED inside
the 

œ

 key lights up and an initialization cycle is started. Once all

the timers have reached zero, the unit starts up.
When a remote ON/OFF switch is configured, the following table
applies:

2

If the water chiller does not start after a few minutes, refer to

"Troubleshooting" on page 19

.

œ

key, to start up or to shut down the unit.

π

key, to enter the safeties menu or to reset an alarm.

ƒ

key, to enter the main menu

Ì

keys, to scroll up or down through the screens of a menu
(only in case 

^

v

 or 

÷

 appears) or to raise, respectively

lower a setting.

key, to confirm a selection or a setting.

NOTE

Temperature readout tolerance: ±1°C.

Legibility of the alphanumeric display may decrease in
direct sunlight.

Menu

Not 
selected

Selected

Readout menu

Setpoints menu

Usersettings menu

Timers menu

History menu

Info menu

I/O status menu

Login/logout menu

Network menu

Cool/heat menu

=

=

=

=

=

=

=

=

=

=

º

Ò

Â

µ

®

Ú

æ

Ï

ª

Å

Ó

Ÿ

Æ

Í

ªÒµ®

†Úæ∂Ï

NOTE

When a remote digital controller is connected to a
stand-alone unit, the address of the remote digital
controller has to be set to SUB by means of the DIP-
switches on the back of the remote digital controller.
Refer to the installation manual "Setting the addresses
on the remote digital controller" for setting the address.

NOTE

If the password protection is set to ON, the correct
password has to be given before any further
action is possible.

Local key

Remote 

ON/OFF switch

Unit

œ

 LED

ON

ON

ON

ON

ON

OFF

OFF

Flashing

OFF

ON

OFF

OFF

OFF

OFF

OFF

OFF

Summary of Contents for EWAQ080DAYN

Page 1: ...OPERATION MANUAL EWAQ080DAYN EWAQ100DAYN EWAQ130DAYN EWAQ150DAYN EWAQ180DAYN EWAQ210DAYN EWAQ240DAYN EWAQ260DAYN Packaged air cooled water chillers...

Page 2: ...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 Checks before initial start u...

Page 3: ...15 15 20 20 13 13 13 13 15 15 15 15 Phase 3 Frequency Hz 50 Voltage V 400 Nominal running current Circuit 1 Circuit 2 A A 39 39 51 51 35 35 35 35 39 39 39 39 Control and fan motor Phase 1 Frequency Hz...

Page 4: ...erature sensor R1T 29 Pump optional 2 Condenser 15 Drier charge valve 30 Buffertank optional 3 Compressor 16 Power supply intake 31 Expansion vessel optional 4 Electronic expansion valve sight glass w...

Page 5: ...ansion valve The expansion valve brings the liquid refrigerant to a pressure at which it can easily be evaporated in the evaporator p p p M12C M11C p p p M22C M21C M15F M13F M14F M25F M23F M24F B1PH B...

Page 6: ...and reliable protection against overheating overloading phase loss and phase reversal The controller will detect the shut down of the compressor The controller needs to be reset manually Reverse phas...

Page 7: ...S Fan overcurrent relay for circuit 1 K15F Fancontactor for circuit 1 only for EWAQ080 100 and EWAQ180 260 K15S Fan overcurrent relay for circuit 1 only for EWAQ080 100 and EWAQ180 260 K16F Fancontact...

Page 8: ...her material 11 Power supply voltage Check the power supply voltage on the local supply panel The voltage should correspond to the voltage on the identification label of the unit 12 Water connection C...

Page 9: ...l operational information on page 9 Adjusting the temperature setpoint on page 10 Resetting the unit on page 10 Setting the language If desired the operating language can be changed to any of the foll...

Page 10: ...ond number stands for the dew point saturation temperature in degrees Celsius LOWNOISE at the bottom of the first screen the status of the lownoise setting is shown Y active or N not active 6 Press th...

Page 11: ...network safeties When a unit or circuit safety occurs the compressor is shut down The safeties menu will indicate which safety is activated The UNIT STATUS screen of the readout menu will indicate OF...

Page 12: ...1 and the capacity of the unit To consult information about the unit status of circuit 2 only for EWAQ130 260 To consult actual operational informa tion about the current Ampere and voltage of the un...

Page 13: ...in BUZZER IF SAFETY YES _ ADVANCED BACKLIGHT TIME 05min GRAPHIC READOUT YES ENTER SERVICE PASSWORD 0000 TO LOGIN To check the actual value of the general software timer To check the actual value of th...

Page 14: ...T HISTORY 002 C21RH 00000hCS 00000 _ UNIT HISTORY 002 C22RH 00000hCS 00000 _ UNIT HISTORY 002 AI1 NONE AI2 NONE _ UNIT HISTORY 002 AI3 NONE AI4 NONE To consult time and date information To consult add...

Page 15: ...nex I on page 25 Defining and activating the control mode The unit is equipped with a thermostat which controls the cooling capacity of the unit Select the appropriate mode MANUAL CONTROL manual contr...

Page 16: ...ntrol The DUAL PUMP screen of the usersettings menu allows the user to define the steering of two pumps for this to be possible a changeable digital output has to be configured for a second pump in th...

Page 17: ...however will only come into operation if another unit is in alarm another unit is in DISCONNECT ON OFF mode the setpoint is not reached when all other units have been running on full capacity for some...

Page 18: ...TIME M RT 120 sec starts counting when the compressor has started During the count down the compressor will not be switched off by the thermostat function To check the actual value of the software tim...

Page 19: ...witch setpoint 1 or setpoint 2 REMOTE ON OFF indicates the position of the remote on off switch CAP LIMIT 25 50 75 SET indicates the position of the enable disable capacity limitation switches LOW NOI...

Page 20: ...to enter and select the next number When pressing the key on the last number the confirmation of the new password is completed TROUBLESHOOTING This section provides useful information for diagnosing a...

Page 21: ...vated and alarm messages are displayed The ON LED is broken Contact your local dealer Message safety menu Symptom POSSIBLE CAUSES CORRECTIVE ACTION One of the following safety devices is activated Com...

Page 22: ...or is not locked RESET After temperature decrease the thermal protector is reset automatically and the compressor will start again This is not detected by the controller If the protector is activated...

Page 23: ...ges are displayed Voltage is too low Test the voltage in the supply panel and if necessary in the electrical compartment of the unit voltage drop due to supply cables is too high POSSIBLE CAUSES CORRE...

Page 24: ...damage and make sure that the hole diameter size all over the filter surface is still 1 0 mm maximum Water sensors Check that all the water sensors are correctly fixed into the inlet and outlet water...

Page 25: ...EWAQ080 260DAYN Packaged air cooled water chillers 4PW35556 1E Operation manual 24 NOTES...

Page 26: ...e DICN setup Example A DICN setup with 2 units means load up requests of maximum 2 compressors at a time INLET CONTROL Default value Lower limit Upper limit Units 1 circuit Units 2 circuits Step diffe...

Page 27: ...TING SETPOINT MODE AMBIENT MAXPOS 03 0 NEG 00 0 RF 020 0 SLOPE 006 0 12 0 C 13 5 C 15 0 C 18 0 C 17 5 C 10 0 C 20 0 C 6 0 C 3 0 C 10 0 C A B AMBIENT _ FLOATING SETPOINT MODE CH AI SLOPE NTC MAXPOS 03...

Page 28: ...0 INLET WATER 013 6 OUTLET WATER 007 0 _v UNIT HISTORY 001 1E6 COMPR 1 SAFETY 22h33m00s 23 03 06 COOL INLSP1 012 0 _ UNIT INFO FAN ST VA Y 2PUMP Y HEATERTAPE Y FAN DO ST 2 DO INV 2 ENTER PASSWORD PAS...

Page 29: ...NE OPEN DO5 NONE OPEN _ UNIT STATUS C11 OFF SAFETY ACT C12 OFF SAFETY ACT UNIT CAPACITY 000 _ UNIT STATUS C21 OFF SAFETY ACT C22 OFF SAFETY ACT _ C1 ACT PRESSURES HP1 019 0b 050 8 LP1 004 4b 05 2 FAN1...

Page 30: ...4PW35556 1E Copyright Daikin...

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