Daikin EWAQ005AAV3P, Operation Manual

Operation manual

1

EWAQ+EWYQ005~007AAV3P

Packaged air-cooled water chillers and

packaged reversible air to water heat pumps

4PW27338-1

C

ONTENTS

Page

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 ........................................................... 4
Controller operations ................................................................................. 4
Programming and consulting the schedule timer....................................... 5

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

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

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

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

I

NTRODUCTION

Thank you for purchasing this Daikin inverter chiller.

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.

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).

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.

O

PERATING

THE

DIGITAL

CONTROLLER

Operating the unit comes down to operating the digital controller. 

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.

Basic controller functions

The basic controller functions are:

■

Turning the unit ON/OFF.

■

Operation mode change-over:
-

heating (refer to 

"Heating operation (

h

)" on page 4

),

-

cooling (refer to 

"Cooling operation (

c

)" on page 4

),

-

silent mode (refer to 

"Silent mode operation (

s

)" on 

page 4

).

■

Temperature set point adjustment (refer to 

"Controller

operations" on page 4

).

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.

EWAQ005AAV3P

EWYQ005AAV3P

EWAQ006AAV3P

EWYQ006AAV3P

EWAQ007AAV3P

EWYQ007AAV3P

Packaged air-cooled water chillers and 

packaged reversible air to water heat pumps

Operation manual

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.

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

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.

NOTE

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.