Hitachi RAM-90NP5A Скачать руководство пользователя страница 1

CONDENSED WATER DISPOSAL OF OUTDOOR UNIT

 

There are holes on the base of Outdoor unit for condensed 
water to exhaust.

 

In order to 

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 ow condensed water to the drain, the unit is 

installed on a stand or a block so that the unit is 100mm 
above the ground as shown 

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 gure. Join the drain pipe to 

one hole.

 

At 

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 rst insert one portion of the hook to the base (Portion A), 

then pull the drain pipe in the direction shown by the arrow 
while inserting the hook into the base. After installation, 
check whether the drain pipe cling to the base 

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 rmly.

When Using and Installing In Cold Areas 

When the air conditioner is used in low temperature and in 
snowy conditions, water from the heat exchanger may freeze 
on the base surface to cause poor drainage. When using the 
air conditioner in such areas, do not install the bushings. Keep 
a minimum of 250mm between the drain hole and the ground. 
When using the drain pipe, consult your sales agent.

    For more details, refer to the installation Manual for Cold 
Areas.

WARNING ........ Incorrect methods of installation may cause death or serious injury.
CAUTION ......... Improper installation may result in serious consequence.
Make sure to connect earth wire.
This sign in the 

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 gures indicates prohibition.

!
!

SPLIT UNIT AIR CONDITIONER 

INSTALLATION MANUAL

 Outdoor 

Unit 

RAM-90NP5A

( M a r k       i s   e x c l u s i v e   u s e   t o o l   f o r   R 4 1 0 A )

+  –  Screwdriver 

 Measuring Tape 

 Knife 

 Saw

ø 65mm Power Drill  

 Hexagonal Wrench Key

(    4mm)   

Wrench (14, 17, 22, 26mm)       Gas 

Leakage Detector   

 Pipe Cutter   

 Putty   

 Vinyl Tape     

Pliers  

 Flare Tool      Vacuum Pump Adapter     

Manifold Valve     Charge Hose     Vacuum Pump 

Carefully read through the procedures of proper
installation before starting installation work.

The sales agent should inform customers regarding
the correct operation of installation.

SAFETY PRECAUTION

Read the safety precautions carefully before operating the unit.

The contents of this section are vital to ensure safety. Please pay special attention to the following sign.

WARNING

!

CAUTION

!

 

A circuit breaker must be installed in the house distribution box for the direct connected power supply wire to the outdoor
unit. In case of other installations a main switch with a contact gap or more than 3.5mm has to be installed. Without a
circuit breaker, the danger of electric shock exists.

 

Do not install the unit near a location where there is 

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 ammable gas. The outdoor unit may catch 

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 re  if 

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 ammable 

gas leaks around it.

 

Be sure to tighten the 

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 are nut to the speci

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 ed torque using a torque wrench. If the 

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 are nut is tightened excessively, it may

crack as time elapses, cause refrigerant leakage.

 

Please ensure smooth 

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 ow of water when installing the drain hose.

 

An IEC approved power cord should be used. Power cord type: NYM.

 

Please request your sales agent or quali

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 ed technician to install your unit. Water leakage, short circuit or 

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 re may occur if you

do the installation work yourself.

Please observe the instructions stated in the installation manual during the process of installation. Improper installation may 
cause water leakage, electric shock and 

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 re.

Make sure that the units are mounted at locations which are able to provide full support to the weight of the units. If not, the 
units may collapse and impose danger.

Observe the rules and regulations of the electrical installation and the methods described in the installation manual when dealing 
with the electrical work. Use power cables approved by the authorities of your country.

Be sure to use the speci

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 ed wire for connecting the indoor and outdoor units. Please ensure that the connections are tight after

the conductors of the wire are inserted into the terminals. Improper insertion and loose contact may cause over-heating and 

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 re.

Please use the speci

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 ed components for installation work. Otherwise, the units may collapse or water leakage, electric shock

and 

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 re may occur.

Be sure to use the speci

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 ed piping set for R-410A. Otherwise, this may result in broken copper pipes or faults.

When installing or removing an air conditioner, only speci

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 ed refrigerant (R410A) shall be allowed, do not allow air or moisture

to remain in the refrigeration cycle. Otherwise, pressure in the refrigeration cycle may become abnormally high so that a rupture 
may be caused.

Be sure to ventilate fully if a refrigerant gas leak while at work. If the refrigerant gas comes into contact with 

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 re, a poisonous

gas may occur.

After completion of installation work, check to make sure that there is no refrigeration gas leakage. If the refrigerant gas leaks 
into the room, coming into contact with 

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 re in the fan-driven heater, space heater, etc., a poisonous gas may occur.

Unauthorized 

modi

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 cations to the air conditioner may be dangerous. If a breakdown occurs please call a quali

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 ed air conditioner

technician or electrician. Improper repairs may result in water leakage, electric shock and 

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 re,  etc.

 

Be sure to connect the earth wire from the power supply wire to the outdoor unit and between the outdoor and
indoor unit. Improper earthing may cause electric shock.

FOR SERVICE PERSONNEL ONLY

Tools Needed For Installation Work

Be sure that the unit operates in proper condition after installation. Explain to customer the proper way of operating
the unit as described in the user’s guide.

THE CHOICE OF MOUNTING SITE 

 (Please note the following matters and obtain permission from customer before installation).

WARNING

!

 

The Outdoor unit must be mounted at a location which can support heavy weight. Otherwise, noise and vibration will increase.

CAUTION

!

 

Do not expose the unit under direct sunshine or rain. Besides, ventilation must be good and clear of obstruction.

 

The air blown out of the unit should not point directly to animals or plants.

 

The clearances of the unit from top, left, right and front are speci

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 ed  in 

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 gure below. At least 3 of the above sides must be open air.

 

Be sure that the hot air blown out of the unit and noise do not disturb the neighbourhood.

 

Do not install at a location where there is 

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 ammable gas, steam, oil and smoke.

 

The location must be convenient for water drainage.

 

Place the Outdoor unit and its connecting cord at least 1m away from the antenna or signal line of television, radio or telephone. 
This is to avoid noise interference.

Names of Outdoor Components

Drain Pipe

1

Dimension of Mounting Stand

of the Outdoor unit

(unit: mm)

BASE

DRAIN PIPE

Figure showing the Installation of Outdoor Unit.

3

Bush

Qty

No.

Item

10

11

Height difference

Height difference between indoor units should 
be not more than 5m.

Piping length

 

Mount the Outdoor unit on stable ground to prevent vibration and 
increase of noise level.

 

Decide the location for piping after sorting out the different types of 
pipe available.

Flare adaptor for piping

The 

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 are adaptor for piping is required 

depending on combination of indoor units.

 ø9.52 (3/8”) 

 ø 12.7 (1/2”)

  Parts number TA261D-4 001

 ø12.7(1/2”) 

 ø 9.52 (3/8”)

  Parts number TA261D-6 002

 ø12.7(1/2”) 

 ø 15.88(5/8”)

Parts number TA261D-6 003

One unit of 1.8kW, 2.5kW, 3.5kW, 5.0kW or 6.0kW
(5.0kW, 6.0kW unit: Optional 

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 are adaptor for piping is necessary.)

One unit of 1.8kW, 2.5kW, 3.5kW, 5.0kW or 6.0kW
(5.0kW, 6.0kW unit: Optional 

fl

 are adaptor for piping is necessary.)

One unit of 1.8kW, 2.5kW, 3.5kW, 5.0kW or 6.0kW
(5.0kW, 6.0kW unit: Optional 

fl

 are adaptor for piping is necessary.)

One unit of 1.8kW, 2.5kW, 3.5kW, 5.0kW,  6.0kW or 7.1kW
(1.8-3.5kW unit: Optional 

fl

 are adaptor for piping is necessary.)

One unit of 1.8kW, 2.5kW, 3.5kW, 5.0kW,  6.0kW or 7.1kW
(1.8-3.5kW unit: Optional 

fl

 are adaptor for piping is necessary.)

 

When removing side plate, pull the handle 
after releasing the hook by pulling it 
downward.

Face this side (suction side) of 
the unit to the wall.

Remove side 
cover when 
connecting 
the piping and 
connecting cord.

 

To the outdoor unit, up to 

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 ve indoor units can be connected until 

the total value of each units’s capacity reaches 15.5 kW.

 

The pipe connection ports of the outdoor unit and connectable indoor 
units are shown above.

[Outdoor unit installation]

CAUTION

Make sure to connect to
two or more indoor units.

!

1.  Proper place for installation
1.1 Outdoor unit

(1)  Keep the space around the unit for maintenance and avoiding the effects of hindrance for normal ventilation of the unit.
(2)  The northern or eastern side of the building is better to install. At the installation on the southern or western side unavoidably, some blind

should be set up for the unit. (In this case, the blind must not obstruct the ventilation of the unit.)

(3)  You’d better not put the unit at a place where is full of dirt and at a place where is wet in the rain.
(4)  Place as near as possible to the indoor unit.
(5)  Install the unit in a stable place to minimize vibration or noise.
(6)  After arranging the cords and pipes, secure them in place.

WARNING

If you cannot attach the side cover due to the connecting cord, press the connecting cord in direction to the front panel
to 

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 x  it.

Be sure that the hooks of the side cover is 

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 xed in certainly. Otherwise water leakage may occur and this causes short

circuit or faults.

The connecting cord should not touch to service valve and pipes. (It becomes high temperature in heating operation.)

This appliance must be earthed.

Power is supplied through outdoor unit, do not connect power source to indoor unit.

Wiring of The Outdoor Unit

Please remove the side cover for wire connection.

!

WARNING

!

The naked part of the wire core should be 10 mm and 

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 x it to the terminal tightly. Then try to pull the individual wire to check if the contact

is tight. Improper insertion may burn the terminal.

Be sure to use only power cables approved from the authorities in your country. For example in Germany: Cable type: NYM 3x2.5mm

2

. (fuse

= 30A time delay)

Please refer to the installation manual for wire connection to the terminals of the units. The cabling must meet the standards of electrical
installation.

There is a AC voltage of 220-240V between the L and N terminals. Therefore, before servicing, be sure to remove the plug from the AC outlet
or switch off the main switch.

2. 

In the electrical installation a separator with a contact gap of more than 3mm has 
to be installed. During cleaning or service the set has to be switched off with this 
separator.

3.  Installation procedure and notice

Especially, the selection of installation place need great care for the split type air 
conditioner, because it is very dif

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 cult to move from place to place after the 

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 rst 

installation.

3.1 Wiring

 (1) 

Those terminal blocks for connecting the indoor and outdoor cables should 
be installed starting from the right hand side, in a sequence of 1, 2, 3, 4, 5; in 
accordance with the units’ numbering system, as illustrated in the diagram. The 
left hand-most terminal block is for the power supply connection use.

(2) The A B terminals in the terminal blocks linked to unit no. 4 and unit no. 5 are for AC 220V ~ 240V power         

supply connection use. As for those indoor units with inbuilt high voltage motors that are electricaly operated;   
the signal line (CD Line) should never be connected. Any inadvertent connection of the signal lines will 
damage the indoor unit’s circuit board. The four ABCD terminals are designed for those indoor units with 
inbuilt high voltage motors. The installation instruction manuals that are packed together with the indoor                     
units should be consulted for detailed instructions. A tape that is af

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 xed to the AB terminals to mistake                        

proof wrong connections should be removed before performing the connection. Only 2 terminals (CD) are              
being provided for normal indoor units. As for those indoor units that have no inbuilt high voltage motors              
installed, when connecting no. 4 or no. 5, use only the CD terminals and do not use AB terminals.

(3) Connect the electrical wiring between the Indoor and Outdoor unit, as shown in Fig. 3-1. Never connect the 

wiring by mistake.
In case of wrong connection, the unit does not operate properly and it may cause malfunction.

(4) The connecting cord must be 

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 xed by the band which is located near the terminal board.

3.3  Checking for the electric source and the voltage range

Before installation, the power source must be checked and necessary wiring work must be completed. To make the wiring capacity proper, 
use the wire gauges list below for the lead-in from a pole transformer and for the wiring from a switch board of fuse box to the main
switch and outdoor unit in consideration of the locked rotor current.

Do not connect indoor signal line (C, D line) to high voltage (220-240V) line (A, B line) terminals.

  To avoid misconnection, please refer attached terminal label as shown in Fig. 3-3-1.

To avoid connecting cord scratch or clamp by side cover, it must be 

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 x by band as shown in Fig. 3-3-2.

Investigate the power supply capacity and other electrical conditions at the installation location.
Depending on the model of room air conditioner to be installed, request the customer to make
arrangements for the necessary electrical work etc.
The electrical work includes the wiring work up the outlet. In localities where electrical conditions 
are poor, use of a voltage regulation is recommended.

Fuse Capacity

30A time delay fuse

Bind connecting cords to make them

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 t between the convex sections.

Grounding rod (optional)
(Earth wire and grounding rod are not supplied. 
Please use optional items below.)

 IMPORTANT

Procedures of Wiring

Fig. 3-2

3.2  Connection of the connecting cords and power cord

(1)  Cut off the connecting cord, the power cord and strip the
 

insulation of the wire, as shown in Fig. 3-2.

(2)  Connect the connecting cord and power cord to the terminal
 

board. (Fig. 3-3-2)

 (3) 

Fix the connecting cords and power cord with steel band
certainly. (Fig. 3-3-2)

WARNING

!

Type of grounding rod

SP-EB-2

Length

900mm

Cable length

up to 15m
up to 25m

Wire cross-section

2.5mm

2

4.0mm

2

IMPORTANT

WARNING

● 

Connect the Connecting Cord to C1 and D1 “Indoor 1” for indoor unit 1, C2
and D2 “Indoor 2” for indoor unit 2, C3 and D3 “Indoor 3” for indoor unit 3,
C4 and D4 “Indoor 4” for indoor unit 4 and C5 and D5 “Indoor 5” for indoor
unit 5.

!

Fig. 3-1

<

IA1022: C 

>

Arrange power cord so they do 
not touch service valve.

CAUTION

!

Fig. 3-3-2

If you wish to prepare the copper tubes and insulation material in the 

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 eld, we recommend the following.

No.

Material

Speci

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 cation

1

Cooper tube

Deoxidized annealed copper pipe with 6.35mm O.D., 0.8mm wall thickness.

4.0kW or less

Small dia.

Deoxidized annealed copper pipe with 9.52mm O.D., 1.0mm wall thickness.

Large dia.

Deoxidized annealed copper pipe with 6.35mm O.D., 0.8mm wall thickness.

Small dia.

Deoxidized annealed copper pipe with 12.7mm O.D., 1.0mm wall thickness.

Large dia.

5.0kW or 6.0kW

2

Flare nut

Flare nuts with 6.35mm O.D..

4.0kW or less

Small dia.

Flare nuts with 9.52mm O.D..

Large dia.

Flare nuts with 6.35mm O.D..

Small dia.

Flare nuts with 12.7mm O.D..

Large dia.

5.0kW or 6.0kW

3

Insulation for refrigerating pipe

Foamed polyethylene insulation pipe which does not corrode the copper tube.

Large dia. pipe side: 15mm I.D.., 8mm wall thickness.

Small dia. pipe side: 8mm I.D., 7mm wall thickness.

4

Connecting cord

Refer to item 3.3.

5

Vinyl tape

6

Sealer (Putty)

7

Refrigerator oil

8

Bushing for refrigerating pipes

Deoxidized annealed copper pipe with 6.35mm O.D., 0.8mm wall thickness.

Small dia.

Deoxidized annealed copper pipe with 15.88mm O.D., 1.0mm wall thickness.

Large dia.

7.0kW or more

Flare nuts with 6.35mm O.D..

Small dia.

Flare nuts with 15.88mm O.D..

Large dia.

7.0kW or more

Outdoor Unit

Fig. 3-3-1

Pull downward

(L1 + L2 + L3 + L4 + L5) = Maximum 75m

Minimum piping length for each indoor unit is 5m.

Maximum piping length for one indoor unit is 25m.

   In case the pipe length is more than 30m, add 
refrigerant R410A at 15 gram per every meter exceeds.

CAUTION

Note:

Outdoor supply cords shall not
be lighter than polychloroprene
sheathed flexible cord with code
designation 60245 IEC 57.

!

CAUTION

 

TERMINAL A4B4
AND A5B5 ARE NOT 
FOR USE.

!

INS RAM-90NP5A 1

2/11/14   5:55 PM

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