Daikin EWAQ005ACV3P, EWAQ006ACV3P, EWAQ007ACV3P, EWYQ005ACV3P, EWYQ006ACV3P Operation manuals

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OPERATION MANUAL

Packaged air-cooled water chillers and

packaged reversible air to water heat pumps

EWAQ005ACV3P EWAQ006ACV3P EWAQ007ACV3P

EWYQ005ACV3P EWYQ006ACV3P EWYQ007ACV3P

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EWAQ005ACV3P EWYQ005ACV3P EWAQ006ACV3P EWYQ006ACV3P EWAQ007ACV3P EWYQ007ACV3P

ONTENTS

Contents............................................................................................ 1

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

Operating the digital controller ..........................................................1

Features and functions .............................................................................. 1

Name and function of buttons and icons ................................................... 2

Setting up the controller............................................................................. 3

Description of the operation modes........................................................... 3

Controller operations ................................................................................. 3

Programming and consulting the schedule timer....................................... 5

Maintenance...................................................................................... 8

Important information regarding the refrigerant used ................................ 8

Maintenance activities ............................................................................... 8

Standstill .................................................................................................... 8

Troubleshooting................................................................................. 8

Disposal requirements ...................................................................... 8

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

Before operating the unit, make sure the installation has been carried out correctly by a professional Daikin dealer.

If you feel unsure about operation, contact your Daikin Dealer for advice and information.

NTRODUCTION

Thank you for purchasing this Daikin inverter chiller.

Packaged air-cooled water chillers and

packaged reversible air to water heat pumps

age

This manual

This manual describes how to start up and switch off the unit, set parameters and conﬁgure the schedule timer by means of the controller, maintain the unit and solve operational problems.

For “Checks before initial start-up” and “Initial start-up” procedures refer to the “Installation manual” of this unit.

This unit

This unit is designed for outdoor installation and used for both heating and cooling applications. The unit is designed to be combined with fan coil units or air handling units for air conditioning purposes.

This chiller range consists of 2 main versions: a heat pump (EWYQ) version and a cooling only (EWAQ) version, available in 3 standard sizes (5 kW, 6 kW and 7 kW).

Operation manual

PERATING

Operating the unit comes down to operating the digital controller.

Never let the digital controller get wet. This may cause an electric shock or ﬁre.

Never press the buttons of the digital controller with a hard, pointed object. This may damage the digital controller.

Never service the digital controller yourself, ask a qualiﬁed service person to do this.

Features and functions

The digital controller is a state of the art controller that offers full control over your installation. It can control a cooling/heating and a cooling only installation.

Both installations are available in multiple versions which vary in capacity.

NOTE

Basic controller functions

The basic controller functions are:

Tu r ning the unit ON/OFF. Operation mode change-over:

- heating (refer to "Heating operation ( h )" on page 3),

- cooling (refer to "Cooling operation ( c )" on page 3),

- quiet mode (refer to "Quiet mode operation ( s )" on page 3). Temperature set point adjustment (refer to "Controller

operations" on page 3).

Clock function

The clock functions are:

24 hour real time clock. Day of the week indicator.

Schedule timer function

The schedule timer function allows the user to schedule the operation of the installation according to a daily or a weekly program.

THE

DIGITAL

Some functions described in this manual may not be available or should not be available. Ask your installer or your local Daikin dealer for more information on permission levels.

CONTROLLER

Main components

The main components of the system are:

The digital controller which allows the complete conﬁguration and follow-up of the system.

The manometer which indicates the pressure in the closed water circuit.

The safety valve which prevents the pressure in the closed water circuit from exceeding 3 bar.

Operation manual

EWAQ+EWYQ005~007ACV3P

Packaged air-cooled water chillers and

packaged reversible air to water heat pumps

4PW33164-1B

Name and function of buttons and icons

5 6 228

7 9

12 10

21 20

30 26

24 27

ON/OFF BUTTON o

The ON/OFF button starts or stops the controller. Pressing the ON/OFF button consecutively too many times may

cause malfunction of the system (maximum 20 times per hour).

OPERATION LED 0

The operation LED is lit during cooling or heating operation. The LED blinks if a malfunction occurs. When the LED is OFF, cooling or heating are inactive.

OPERATION MODE ICONS hcs

These icons indicate the current operation mode(s): heating ( h ), cooling ( c ) or quiet mode ( s ). Quiet mode is a feature of the cooling or heating operation mode. When quiet mode is activated, the quiet mode icon and the heating or cooling mode icon will be displayed simultaneously.

In a cooling only installation, the

CENTRALIZED CONTROL e

This icon indicates that the unit is in remote off mode, cooling mode or heating mode. This disables some functions of the remote controller.

DAY OF THE WEEK INDICATOR 1234567

This indicator shows the current weekday. When reading or programming the schedule timer, the indicator

shows the set day.

CLOCK DISPLAY 8

The clock display shows the current time. When reading or programming the schedule timer, the clock

display shows the action time.

SCHEDULE TIMER ICON p

This icon indicates that the schedule timer is enabled.

ACTION ICONS q

These icons indicate the programming actions for each day of the schedule timer.

OFF ICON x

This icon indicates that the OFF action is selected when programming the schedule timer.

INSPECTION REQUIRED k and l

These icons indicate that inspection is required on the installation. Consult your Daikin Dealer.

SET TEMPERATURE DISPLAY 9

The display shows the current set temperature of the installation.

21615

icon will never be displayed.

SETTING $

Not used. For installation purposes only.

NOT AVAILABLE n

This icon is displayed whenever a function is not available in your conﬁguration.

may also appear due to the

restrictions of the user permission level set by the installer.

DEFROST MODE ICON d

This icon indicates that the defrost mode is active.

4 14

19 17 9

18 13

COMPRESSOR ICON ç

This icon indicates that the compressor in the outdoor unit of the installation is active.

PUMP ICON é

This icon indicates that the circulation pump is active.

OUTDOOR TEMPERATURE DISPLAY u

When this icon is ﬂashing, the outdoor ambient temperature is displayed.

WEATHER DEPENDENT SET POINT ICON a

29 28

This icon indicates that the controller will adapt the temperature set point automatically, based on the outdoor ambient temperature.

TEMPERATURE ICON b

This icon is displayed together with the temperature set point, the water outlet temperature or the outdoor ambient temperature.

The icon is also displayed when the temperature set point is set in schedule timer programming mode.

20 TEST OPERATION ICON t

This icon indicates that the unit runs in test mode. Refer to the installation manual.

21 FIELD SET CODE ;

This code represents the code from the ﬁeld set list. Refer to the installation manual.

22 ERROR CODE :

This code refers to the error code list and is for service purposes only. Refer to the service manual.

23 HEATING/COOLING BUTTON =

This button allows manual switching between cooling or heating mode (provided the unit is not a “cooling only” unit).

24 WEATHER DEPENDENT SET POINT BUTTON ba

This button enables or disables the weather dependent set point function which is available in space heating operation only.

INSPECTION/TEST OPERATION BUTTON z

This button is used for installation purposes only. Refer to the installation manual.

PROGRAMMING BUTTON <

This multi-purpose button is used to program the controller. The function of the button depends on the actual status of the controller or on previous actions carried out by the operator.

SCHEDULE TIMER BUTTON pr

The main function of this multi-purpose button is to enable/ disable the schedule timer.

The button is also used to program the controller. The function of the button depends on the actual status of the controller or on previous actions carried out by the operator.

If the controller is set in permission level 2 (refer to the installation manual), the schedule timer button will not be operational.

TIME ADJUST BUTTON pi and pj

These multi-purpose buttons are used to adjust the clock, to toggle between temperatures (water outlet temperature and outdoor ambient temperature) and in schedule timer programming mode.

EWAQ+EWYQ005~007ACV3P Packaged air-cooled water chillers and packaged reversible air to water heat pumps 4PW33164-1B

Operation manual

TEMPERATURE ADJUST BUTTONS bi and bj

These multi-purpose buttons are used to adjust the current set point in normal operation mode or in schedule timer programming mode. In weather dependent set point mode the buttons are used to adjust the shift value. Finally, the buttons are also used to select the weekday while setting the clock.

QUIET MODE BUTTON s

This button enables or disables quiet mode.

NOTE

Buttons that are not described above are not used in this conﬁguration. Pressing these buttons ( w ,

wbj and wbi ) has no inﬂuence on the

operation. When these buttons are pressed,

n will be displayed.

Setting up the controller

After initial installation, the user can set the clock and day of the week.

The controller is equipped with a schedule timer that enables the user to schedule operations. Setting the clock and day of the week is required to be able to use the schedule timer.

Setting the clock

Hold down the pr button for 5 seconds. The clock read-out and the day of week indicator start ﬂashing.

Use the pi and pj buttons to adjust the clock. Each time the pi or pj button is pressed, the time will

increase/decrease by 1 minute. Keeping the pi or pj button pressed will increase/decrease the time by 10 minutes.

Use the bi or bj button to adjust the day of the week. Each time the bi or bj button is pressed the next or

previous day is displayed.

Press the < button once to conﬁrm the current set time and day of the week.

If no button is pressed for 5 minutes, while the clock and day of the week read-out are still ﬂashing, the clock and day of the week will return to their previous setting and the clock setting function will no longer be active.

NOTE

Setting the schedule timer

To set the schedule timer, refer to chapter "Programming and

consulting the schedule timer" on page 5.

The clock needs to be set manually. Adjust the setting when switching from summertime to wintertime and vice versa.

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Description of the operation modes

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Heating operation (hh

In this mode, heating will be activated as required by the temperature set point. The set point can be set manually (refer to "Manual

operation" on page 3), weather dependent (refer to "Weather dependent operation (heat pump models only)" on page 4) or

according to the defrost demand from the outdoor unit.

NOTE

Defrosting stops:

when switching between cooling and heating, at a low outdoor temperature and a low

temperature of the incoming water, when the desired defrost temperature is reached,

i.e. defrost stop temperature (contact your local Daikin dealer).

Heating operation restarts automatically when the water temperature is above the defrost stop temperature.

Heating operation is not possible if the installation is a "cooling only" installation.

Defrost ( dd

In heating operation, freezing of the outdoor heat exchanger may occur due to low outdoor temperature. If this risk occurs, the system goes into defrost operation. It reverses the cycle and takes heat from the indoor system to prevent freezing of the outdoor system. After a maximum of 10 minutes of defrost operation, the system returns to heating operation.

Cooling operation (cc

In this mode, cooling will be activated as required by the temperature set point.

NOTE

The cooling temperature set point can only be set manually (refer to "Manual operation" on page 3).

Switching between heating and cooling operation can only be done by pressing the = button (provided the unit is not a "cooling only" unit).

Quiet mode operation (ss

Quiet mode operation means that the outdoor unit works at reduced capacity so that the noise produced by the outdoor unit drops. This implies that the indoor heating and cooling capacity will also drop. Beware of this when a certain level of heating is required indoors.

Controller operations

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Operation manual

Manual operation

In manual operation, the user manually controls the temperature settings of the installation. The last setting remains active until the user changes it or until the schedule timer does.

As the controller can be used for a wide variety of installations, it is possible to select a function which is not available on your installation. In that case the message n will appear.

EWAQ+EWYQ005~007ACV3P

Packaged air-cooled water chillers and

packaged reversible air to water heat pumps

4PW33164-1B

+ 8 hidden pages