Daikin REYAQ10P7Y1B, REYAQ12P7Y1B, REYAQ14P7Y1B, REYAQ16P7Y1B Operation manuals [fi]

OPERATION MANUAL

VRVIII system air conditioner

system air conditioner

REYAQ10P7Y1B
REYAQ12P7Y1B
REYAQ14P7Y1B
REYAQ16P7Y1B

REYAQ10P7Y1B REYAQ14P7Y1B
REYAQ12P7Y1B REYAQ16P7Y1B

VRVIII system air conditioner

Operation manual

CONTENTS Page

1. Definitions.................................................................................. 1

1.1. Meaning of warnings and symbols .............................................. 1

1.2. Meaning of used terms ................................................................ 1

2. Introduction................................................................................ 2

2.1. General information ..................................................................... 2

3. What to do before operation...................................................... 3

4. Remote controller ...................................................................... 3

5. Operation range......................................................................... 3

6. Operation procedure.................................................................. 4

6.1. Cooling, heating, fan only, and automatic operation .................... 4

6.2. Program dry operation ................................................................. 5

6.3. Adjusting the air flow direction ..................................................... 6

6.4. Setting the master remote controller............................................ 6

6.5. Precautions for group control system or two remote controller

control system.............................................................................. 6

7. Energy saving and optimum operation...................................... 6

8. Maintenance .............................................................................. 7

8.1. Maintenance after a long stop period .......................................... 7

8.2. Maintenance before a long stop period ....................................... 7

9. Following symptoms are not air conditioner troubles................. 7

10. Troubleshooting ......................................................................... 8

11. After-sales service and warranty ............................................... 9

11.1. After-sales service ....................................................................... 9

11.2. Shortening of "maintenance cycle" and "replacement cycle"

needs to be considered in following situations........................... 10

12. Important information regarding the refrigerant used .............. 10

Thank you for purchasing this Daikin air conditioner.

The original instructions are written in English. All other languages
are translations of the original instructions.

1. DEFINITIONS

1.1. Meaning of warnings and symbols

Warnings in this manual are classified according to their severity and
probability of occurrence.

DANGER

Indicates an imminently hazardous situation which, if not
avoided, will result in death or serious injury.

WARNING

Indicates a potentially hazardous situation which, if not
avoided, could result in death or serious injury.

CAUTION

Indicates a potentially hazardous situation which, if not
avoided, may result in minor or moderate injury. It may also
be used to alert against unsafe practices.

NOTICE

Indicates situations that may result in equipment or
property-damage accidents only.

INFORMATION

This symbol identifies useful tips or additional information.

Some types of danger are represented by special symbols:

Electric current.

Danger of burning and scalding.

CAREFULLY READ THESE INSTRUCTIONS BEFORE
OPERATING THE UNIT. THEY WILL TELL YOU HOW TO
USE THE UNIT PROPERLY. KEEP THIS MANUAL IN A
HANDY PLACE FOR FUTURE REFERENCE.

This appliance is not intended for use by persons, including children,
with reduced physical, sensory or mental capabilities, or lack of
experience and knowledge, unless they have been given supervision
or instruction concerning use of the appliance by a person
responsible for their safety.
Children shall be supervised to ensure that they do not play with the
appliance.

WARNING

■ This unit contains electrical and hot parts.

■ Before operating the unit, be sure the installation has

been carried out correctly by an installer.
If you feel unsure about operation, contact your
installer for advice and information.

1.2. Meaning of used terms

Installation manual:

Instruction manual specified for a certain product or application,
explaining how to install, configure and maintain it.

Operation manual:

Instruction manual specified for a certain product or application,
explaining how to operate it.

Maintenance instructions:

Instruction manual specified for a certain product or application,
which explains (if relevant) how to install, configure, operate and/or
maintain the product or application.

Dealer:

Sales distributor for products as per the subject of this manual.

Installer:

Technical skilled person who is qualified to install products as per the
subject of this manual.

User:

Person who is owner of the product and/or operates the product.

Service company:

Qualified company which can perform or coordinate the required
service to the unit.

Applicable legislation:

All international, European, national and local directives, laws,
regulations and/or codes which are relevant and applicable for a
certain product or domain.

Operation manual

1

VRVIII system air conditioner

HXHD125A7V1B

4PW62583-1 – 11.2010

Accessories:

Equipment which is delivered with the unit and which needs to be
installed according to instructions in the documentation.

Optional equipment:

Equipment which can optionally be combined to the products as per
the subject of this manual.

Field supply:

Equipment which needs to be installed according to instructions in
this manual, but which are not supplied by Daikin.

2. INTRODUCTION

2.1. General information

The unit is the indoor part of the air to water REYAQ heat pump and
used for heating/cooling applications.

NOTICE

An HXHD125 indoor unit can only be connected to an
REYAQ outdoor unit.

INFORMATION

This manual does not apply for the HXHD125 indoor unit.
Refer to the installation and operation manual of the
HXHD125 indoor unit for this information.

Refer to the installation manual for the list of options.

WARNING

■ If you detect any abnormality such as smell of fire,
turn off the power supply and call your dealer for
instructions.

■ Do not place objects in direct proximity of the outdoor
unit and do not let leaves and other debris accumulate
around the unit.
Leaves are a hotbed for small animals which can enter
the unit. Once in the unit, such animals can cause
malfunctions, smoke or fire when making contact with
electrical parts.

■ Ask your dealer for improvement, repair, and
maintenance.
Incomplete improvement, repair, and maintenance
may result in a water leakage, electric shock and fire.

■ Do not insert fingers, rods or other objects into the air
inlet or outlet. When the fan is rotating at high speed, it
will cause injury.

■ Never let the indoor unit or the remote controller get
wet.
It may cause an electric shock or a fire.

■ Never use a flammable spray such as hair spray,
lacquer or paint near the unit.
It may cause a fire.

■ Never touch the air outlet or the horizontal blades
while the swing flap is in operation.
Fingers may become caught or the unit may break
down.

■ Never replace a fuse with a fuse of a wrong ampere
ratings or other wires when a fuse blows out.
Use of wire or copper wire may cause the unit to break
down or cause a fire.

■ To prevent refrigerant leak, contact your dealer.
When the system is installed and runs in a small room,
it is required to keep the concentration of the
refrigerant, if by any chance coming out, below the
limit. Otherwise, oxygen in the room may be affected,
resulting in a serious accident.

■ The refrigerant in the air conditioner is safe and
normally does not leak. If the refrigerant leaks in the
room, contact with a fire of a burner, a heater or a
cooker may result in a harmful gas.

■ Turn off any combustible heating devices, ventilate the
room and contact the dealer where you purchased the
unit.
Do not use the air conditioner until a service person
confirms that the portion where the refrigerant leaks is
repaired.

■ Improper installation or attachment of equipment or
accessories could result in electric shock, short­circuit, leaks, fire or other damage to the equipment.
Be sure to use only accessories made by Daikin which
are specifically designed for use with the equipment
and have them installed by a professional.

■ Ask your dealer to move and reinstall the air
conditioner.
Incomplete installation may result in a water leakage,
electric shock, and fire.

■ Do not place a flammable spray bottle near the air
conditioner and do not use sprays.
Doing so may result in a fire.

■ Before cleaning, be sure to stop the operation, turn
the breaker off or pull out the supply cord.
Otherwise, an electric shock and injury may result.

■ Do not operate the air conditioner with a wet hand.
An electric shock may result.

■ Do not place appliances which produce open fire in
places exposed to the air flow from the unit or under
the indoor unit. It may cause incomplete combustion
or deformation of the unit due to the heat.

■ Do not wash the air conditioner with water.
Electric shock or fire may result.

■ Do not install the air conditioner at any place where
flammable gas may leak out.
If the gas leaks out and stays around the air
conditioner, a fire may break out.

■ In order to avoid electric shock or fire, make sure that
an earth leak detector is installed.

■ Be sure the air conditioner is electrically earthed.
In order to avoid electric shock, make sure that the
unit is grounded and that the earth wire is not
connected to gas or water pipe, lightning conductor or
telephone earth wire.

■ Do not place a flower vase or anything containing
water on the unit.
Water may enter the unit, causing an electric shock or
fire.

■ Avoid placing the controller in a spot which can be
splashed with water.
Water entering the machine may cause an electric
leak or may damage the internal electronic parts.

HXHD125A7V1B

VRVIII system air conditioner

4PW62583-1 – 11.2010

Operation manual

2

CAUTION

■ It is not good for your health to expose your body to
the air flow for a long time.

■ In order to avoid injury, do not remove the fan guard of
the outdoor unit.

■ To avoid oxygen deficiency, ventilate the room
sufficiently if equipment with burner is used together
with the air conditioner.

■ Do not allow anyone to mount on the outdoor unit or
avoid placing any object on it.
Falling or tumbling may result in injury.

■ Never expose little children, plants or animals directly
to the air flow.

■ Do not let children play on and around the outdoor
unit.
If they touch the unit carelessly, it may result in injury.

■ Never touch the internal parts of the controller.
Do not remove the front panel. Some parts inside are
dangerous to touch and appliance problems may
happen. For checking and adjusting the internal par ts,
contact your dealer.

■ Do not touch the heat exchanger fins.
These fins are sharp and could result in cutting
injuries.

NOTICE

■ Never put any objects into the air inlet or outlet.
Objects touching the fan at high operating speed can
be dangerous.

■ Never press the button of the remote controller with a
hard, pointed object.
The remote controller may be damaged.

■ Never pull or twist the electric wire of the remote
controller.
It may cause the unit to malfunction.

■ Never inspect or service the unit by yourself.
Ask a qualified service person to perform this work.

■ Do not use the air conditioner for other purposes.
In order to avoid any quality deterioration, do not use
the unit for cooling precision instruments, food, plants,
animals or works of art.

■ After a long use, check the unit stand and fitting for
damage.
If damaged, the unit may fall and result in injury.

■ Do not place items which might be damaged by
moisture under the indoor unit.
Condensation may form if the humidity is above 80%,
if the drain outlet is blocked or the filter is polluted.

■ Arrange the drain hose to ensure smooth drainage.
Incomplete drainage may cause wetting of the
building, furniture etc.

■ Do not place the controller exposed to direct sunlight.
The LCD display may get discolored, failing to display
the data.

■ Do not wipe the controller operation panel with
benzine, thinner, chemical dustcloth, etc.
The panel may get discolored or the coating peeled
off. If it is heavily dirty, soak a cloth in water-diluted
neutral detergent, squeeze it well and wipe the panel
clean. Wipe it with another dry cloth.

■ Do not operate the air conditioner when using a room
fumigation - type insecticide.
This could cause the chemicals to become deposited
in the unit, which could endanger the health of those
who are hypersensitive to chemicals.

3. WHAT TO DO BEFORE OPERATION

This operation manual is for the following systems with standard
control. Before initiating operation, contact your dealer for the
operation that corresponds to your system type and mark.

If your installation has a customized control system, ask your dealer
for the operation that corresponds to your system.

Outdoor unit

Cool/heat

changeover

remote control

switch

Heat recovery series

Heat pumps REYAQ series ❏ yes ❏ no

Operation modes

Names and functions of parts

5

1

4

6

78

2

43

5

1 Outdoor unit
2 Indoor unit
3 Remote controller
4 Inlet air
5 Outlet air
6 Cool/heat changeover remote control switch
7 Branch selector (BS) unit
8 HXHD indoor unit

(The figure above shows a system with changeover remote control
switches.)

4. REMOTE CONTROLLER

Refer to the operation manual of the remote controller.

5. OPERATION RANGE

Operation range

Use the system in the following temperature and humidity ranges for
safe and effective operation.

Outdoor temperature

Indoor temperature

Indoor humidity

(*) to avoid condensation and water dripping out the unit.

If the temperature or the humidity is beyond these conditions, safety devices may
work and the air conditioner may not operate.

–5~43°C DB –20~21°C DB

–20~15.5°C WB

21~32°C DB 15~27°C DB

14~25°C WB

(*)

≤80%

Operation manual

3

VRVIII system air conditioner

HXHD125A7V1B

4PW62583-1 – 11.2010