Daikin REYQ72PAYD Installation Manual Download

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English

REYQ72PAYD
REYQ96PAYD
REYQ120PAYD

REYQ72PATJ
REYQ96PATJ
REYQ120PATJ

VRV

III

System air conditioner

Installation manual

CONTENTS

1. FIRST OF ALL..........................................................................1

1-1. Safety considerations ........................................................1
1-2. Special notice of product ...................................................2
1-3. Disposal requirements.......................................................3

2. INTRODUCTION......................................................................3

2-1. Combination ......................................................................3
2-2. Standard supplied accessories .........................................3
2-3. Option accessory...............................................................3
2-4. Technical and Electrical specifications..............................3
2-5. Main components ..............................................................3

3. SELECTION OF LOCATION....................................................3
4. INSPECTING AND HANDLING THE UNIT..............................4
5. PLACING THE UNIT ................................................................4
6. REFRIGERANT PIPING ..........................................................4

6-1. Selection of piping material and

Refrigerant branching kit ...................................................4

6-2. Protection against contamination when installing pipes ....5
6-3. Pipe connection.................................................................5
6-4. Connecting the refrigerant piping ......................................5
6-5. Example of connection ......................................................6

7. FIELD WIRING.........................................................................9

7-1. Power circuit, safety device and cable requirements ........9
7-2. Wiring Connection Example for Whole System.................9
7-3. Leading wire Procedure ....................................................9
7-4. Transmission Wiring Connection Procedure ...................10
7-5. Power Wiring Connection Procedure ..............................10
7-6. Procedure for Wiring Inside Units....................................11

8. AIR TIGHT TEST AND VACUUM DRYING ...........................11
9. PIPE INSULATION.................................................................12

10. CHECKING OF DEVICE AND

INSTALLATION CONDITIONS ..............................................12

11. ADDITIONAL REFRIGERANT CHARGE AND

CHECK OPERATION.............................................................12
11-1.Before working ...............................................................12
11-2.Procedure of Adding Refrigerant charging and

check operation ...............................................................13

12. ONSITE SETTINGS ...............................................................16
13. TEST RUN .............................................................................16

13-1.Before test run................................................................16
13-2.Test Run.........................................................................16
13-3.Checks After Test Run ...................................................17

14. CAUTION FOR REFRIGERANT LEAKS ...............................17

FIRST OF ALL

•

This document is an installation manual for the Daikin REYQ-PA
Series VRV Inverter. Before installing the unit, read this manual thor-
oughly, and following the instructions contained in it.
After installation, do a test run to make sure the unit runs properly,
and then explain how to operate and take care of the unit to the cus-
tomer, using the operation manual.
Lastly, make sure the customer keeps this manual, along with the
operation manual, in a safe place.

1-1 Safety considerations

Read these “SAFETY CONSIDERATIONS for Installation” carefully before
installing air conditioning equipment. After completing the installation,
make sure that the unit operates properly during the startup operation.
Instruct the customer on how to operate and maintain the unit. Inform
customers that they should store this Installation Manual with the Oper-
ation Manual for future reference.
Always use a licensed installer or contractor to install this product.
Improper installation can result in water or refrigerant leakage, electrical
shock, fire, or explosion.
Meanings of

DANGER

WARNING

CAUTION

, and

NOTE

Symbols:

DANGER

.................... Indicates an imminently hazardous situa-

tion 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.

NOTE

.......................... Indicates situations that may result in

equipment or property-damage accidents
only.

DANGER

• Refrigerant gas is heavier than air and replaces oxygen. A

massive leak can lead to oxygen depletion, especially in base-
ments, and an asphyxiation hazard could occur leading to
serious injury or death.

• Do not ground units to water pipes, gas pipes, telephone

wires, or lightning rods as incomplete grounding can cause a
severe shock hazard resulting in severe injury or death. Addi-
tionally, grounding to gas pipes could cause a gas leak and
potential explosion causing severe injury or death.

• If refrigerant gas leaks during installation, ventilate the area

immediately. Refrigerant gas may produce toxic gas if it
comes in contact with fire. Exposure to this gas could cause
severe injury or death.

• After completing the installation work, check that the refriger-

ant gas does not leak throughout the system.

• Do not install unit in an area where flammable materials are

present due to risk of explosions that can cause serious injury
or death.

• Safely dispose all packing and transportation materials in ac-

cordance with federal/state/local laws or ordinances. Packing
materials such as nails and other metal or wood parts, includ-
ing plastic packing materials used for transportation may
cause injuries or death by suffocation.

WARNING

• Only qualified personnel must carry out the installation work.

Installation must be done in accordance with this installation
manual. Improper installation may result in water leakage,
electric shock, or fire.

• When installing the unit in a small room, take measures to keep

the refrigerant concentration from exceeding allowable safety
limits. Excessive refrigerant leaks, in the event of an accident in
a closed ambient space, can lead to oxygen deficiency.

• Use only specified accessories and parts for installation work.

Failure to use specified parts may result in water leakage,
electric shocks, fire, or the unit falling.

• Install the air conditioner on a foundation strong enough that

it can withstand the weight of the unit. A foundation of insuf-
ficient strength may result in the unit falling and causing inju-
ries.

• Take into account strong winds, typhoons, or earthquakes

when installing. Improper installation may result in the unit
falling and causing accidents.

• Make sure that a separate power supply circuit is provided for

this unit and that all electrical work is carried out by qualified
personnel according to local state, and national regulations.
An insufficient power supply capacity or improper electrical
construction may lead to electric shocks or fire.