Fujitsu UTY-VDGX Installatiehandleiding - Pagina 2

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INSTALLATION MANUAL

PART NO. 9381279005

VRF system DX-kit

Contents

SAFETY PRECAUTIONS .........................................................................................1

ABOUT THIS PRODUCT ..........................................................................................1

2.1. Precautions for using R410A refrigerant ............................................................1

2.2. Special tool for R410A ........................................................................................1

2.3. Accessories ........................................................................................................2

2.4. Optional parts .....................................................................................................3

PRODUCT SELECTION ...........................................................................................3

3.1. Product Lineup ...................................................................................................3

3.2. System Design ...................................................................................................3

INSTALLATION WORK ............................................................................................4

4.1. Selecting an installation location ........................................................................4

4.2. Installation dimensions .......................................................................................4

4.3. Installing the unit .................................................................................................4

PIPE INSTALLATION ...............................................................................................6

5.1. Selecting the pipe material .................................................................................6

5.2. Pipe requirement ................................................................................................6

5.3. Bending pipes .....................................................................................................6

5.4. Pipe connection ..................................................................................................6

5.5. Installing heat insulation .....................................................................................7

MOUNTING THERMISTORS ....................................................................................7

ELECTRICAL WIRING..............................................................................................7

7.1. Electrical requirement .........................................................................................8

7.2. Wiring method ....................................................................................................8

7.3. Unit wiring ...........................................................................................................8

7.4. Connection of wiring .........................................................................................10

7.5. External input and external output (Optional parts) ..........................................12

FIELD SETTING ......................................................................................................15

8.1. Setting the address ...........................................................................................15

8.2. Dip switch setting ..............................................................................................16

8.3. Function setting ................................................................................................16

TEST RUN ...............................................................................................................17

9.1. Test run using Outdoor unit (PCB) ...................................................................17

9.2. Test run using remote controller .......................................................................17

10. CHECK LIST (Example) .........................................................................................17

11. ERROR CODES ......................................................................................................17

12. OPERATIONS .........................................................................................................18

12.1. Analog external inputs ....................................................................................18

1. SAFETY PRECAUTIONS

• Be sure to read this Manual thoroughly before installation.

• The warnings and precautions indicated in this Manual contain important information per-

taining to your safety. Be sure to observe them.

• Hand this Manual, to the customer. Request the customer to keep them on hand for future

use, such as for relocating or repairing the unit.

• For installation of the air handling unit (heat exchanger), refer to the installation manual

for the air handling unit.

This mark indicates procedures which, if improperly

WARNING

performed, might lead to the death or serious injury of the

user.

Request your dealer or a professional installer to install the DX-kit in accordance with

this Installation Manual. An improperly installed unit can cause serious accidents such

as water leakage, electric shock, or ﬁ re. If the DX-kit is installed in disregard of the

instructions in the Installation Manual, it will void the manufacturer's warranty.

Do not turn ON the power until all work has been completed. Turning ON the power

before the work is completed can cause serious accidents such as electric shock or

ﬁ re.

If refrigerant leaks while work is being carried out, ventilate the area. If the refrigerant

comes in contact with a ﬂ ame, it produces a toxic gas.

Installation work must be performed in accordance with national wiring standards by

authorized personnel only.

Except for EMERGENCY, never turn off main as well as sub breaker of the DX-kits

during operation. It will cause compressor failure as well as water leakage. First, stop

the DX-kit by operating the control unit, converter or external input device and then cut

the breaker.

Make sure to operate through the control unit, converter or external input device.

When the breaker is designed, locate it at a place where the users cannot start and

stop in the daily work.

En-1

This mark indicates procedures which, if improperly performed,

CAUTION

might possibly result in personal harm to the user, or damage to

property.

Read carefully all security information before use or install the DX-kit.

Do not attempt to install the DX-kit or a part of the DX-kit by yourself.

This unit must be installed by qualified personnel with a capacity certificate for handling

refrigerant fluids. Refer to regulation and laws in use on installation place.

The installation must be carried out in compliance with regulations in force in the place

of installation and the installation instructions of the manufacturer.

This unit is part of a set constituting the DX-kit. It must not be installed alone or with non-

authorized by the manufacturer.

Always use a separate power supply line protected by a circuit breaker operating on all

wires with a distance between contact of 3mm for this unit.

The unit must be correctly earthed (grounded) and the supply line must be equipped with

a differential breaker in order to protect the persons.

The units are not explosion proof and therefore should not be installed in explosive

atmosphere.

Never touch electrical components immediately after the power supply has been turned

off. Electric shock may occur. After turning off the power, always wait 5 minutes before

touching electrical components.

This unit contains no user-serviceable parts. Always consult authorized service

personnel to repairs.

When moving, consult authorized service personnel for disconnection and installation of

the unit.

2. ABOUT THIS PRODUCT

2.1. Precautions for using R410A refrigerant

Do not introduce any substance other than the prescribed refrigerant into the

refrigeration cycle. If air enters the refrigeration cycle, the pressure in the refrigeration

cycle will become abnormally high and cause the piping to rupture.

If there is a refrigerant leak, make sure that it does not exceed the concentration limit.

If a refrigerant leak exceeds the concentration limit, it can lead to accidents such as

oxygen starvation.

Do not touch refrigerant that has leaked from the refrigerant pipe connections or other

area. Touching the refrigerant directly can cause frostbite.

If a refrigerant leak occurs during operation, immediately vacate the premises and

thoroughly ventilate the area. If the refrigerant comes in contact with a flame, it

produces a toxic gas.

2.2. Special tool for R410A

To install a unit that uses R410A refrigerant, use dedicated tools and piping materials

that have been manufactured specifically for R410A use. Because the pressure

of R410A refrigerant is approximately 1.6 times higher than the R22, failure to

use dedicated piping material or improper installation can cause rupture or injury.

Furthermore, it can cause serious accidents such as water leakage, electric shock, or

ﬁ re.

Tool name

The pressure in the refrigerant system is extremely high

and cannot be measured with a conventional gauge.

To prevent erroneous mixing of other refrigerants,

the diameter of each port has been changed. It is

Gauge manifold

recommended to use a gauge manifold with a high

pressure display range of -0.1 to 5.3 MPa and a low

pressure display range of -0.1 to 3.8 MPa.

To increase pressure resistance, the hose material and

base size were changed.

Charging hose

(The charging port thread diameter for R410A is 1/2 UNF

20 threads per inch.)

A conventional vacuum pump can be used by installing a

vacuum pump adapter.

Be sure that the pump oil does not backflow into the

Vacuum pump

system. Use one capable for vacuum suction of

-100.7 kPa (5 Torr, -755 mmHg).

Special gas leakage detector for R410A refrigerant.

Gas leakage detector

WARNING

Changes