Orion RAC-S10C installation manual Installation Manual, Indoor Unit, Installation of Drain Hose

● Carefully read through the procedures of proper

THE CHOICE OF MOUNTING SITE (Please note the following matters and obtain permission from customer before installation).

			installation before starting installation work.
		● The sales agent should inform customers regarding
HITACHI SPLIT-UNIT AIR CONDITIONER			the correct operation of installation.
INSTALLATION MANUAL			Tools Needed For Installation Work
Indoor Unit	Outdoor Unit	● + – Screwdriver ● Measuring Tape			● Knife
		● Saw ● ø 65mm Power Drill ● Allen Key (			4mm)
		● Wrench (14, 17, 19, 22mm)
RAS-S10C	RAC-S10C	● Gas Leakage Detector		● Pipe Cutter
		● Plastic Tape ● Pliers		● Flare Tool

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
	● The unit should be mounted at stable, non-vibratory location which
		can provide full support to the unit.
UNIT		!	CAUTION
		allowed.
	●	No nearby heat source and no obstruction near the air outlet is
INDOOR	● The clearance distances from top, right and left are specified in
		figure below.
	● The location must be convenient for water drainage and pipe
		connection with the Outdoor unit.
	●	To avoid interference from noise please place the unit and its
		remote controller at least 1m from the radio, television and inverter

type fluorescent lamp.

● To avoid any error in signal transmission from the remote controller, please put the controller far away from high-frequency machines and high-power wireless systems.

● The installation height of indoor unit must be 2.3m or more in a non public area.

		!	WARNING
	● The outdoor unit must be mounted at a location which can sup-
		port heavy weight. Otherwise, noise and vibration will increase.
UNIT		!	CAUTION
	●	Do not expose the unit under direct sunshine or rain. Besides,
		ventilation must be good and clear of obstruction.
OUTDOOR	● 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 specified
		in figure below. At least three 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 flammable gas, steam, oil and smoke.

● The location must be convenient for water drainage.

● Place the outdoor unit and its connection wire at least 1m away from the antenna or signal line of television, radio or telephone. This is to avoid noise interference.

!	WARNING	Incorrect methods of installation may cause death or serious injury.
!	CAUTION	Improper installation may result in serious consequence.

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.

!WARNING

●Please request your sales agent or qualified technician to install your unit. Water leakage, short circuit or fire 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 fire.

●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 specified 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 fire.

●Please use the specified components for installation work. Otherwise, the units may collapse or water leakage, electric shock and fire may occur.

●Be sure to use the specified piping set for R22. Otherwise, this may result in broken copper pipes or faults.

●When installing or removing an air conditioner, 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 fire, 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 fire in the fan-driven heater, space heater, etc., a poisonous gas may occur.

●Unauthorized modifications to the air conditioner may be dangerous. If a breakdown occurs please call a qualified air conditioner technician or electrician. Improper repairs may result in water leakage, electric shock and fire, etc.

!CAUTION

●A circuit breaker or fuse (20A time delay) must be installed. Without a circuit breaker or fuse the danger of electric shock exists.

A main switch with a contact gap of more than 3mm has to be installed in the power supply line to the outdoor unit.

● Do not install the unit near a location where there is flammable gas. The outdoor unit may catch fire if flammable gas leaks around it.

●Please ensure smooth flow of water when installing the drain hose.

●Piping shall be suitable supported with a maximum spacing of 1m between the supports.

Names of Indoor Components

No.	Component’s Name	Qty
	Mounting Plate
1		1
	Screw for Mounting Plate	6
2	( 4 . 1 x 3 2 )
	Holder for Remote
3	Controller	1
	AAA Size Battery
4		2
	Screw for holder of
5	Remote Controller	2
	( 3 . 1 x 1 6 )
	Remote Controller
6		1
	Purifying Filter
7		2

The Length of Indoor Unit

Power Cord

about
0.9m	about 1.6m

Do not alter the power cord.

Cut away shaded portion, and finish the edge of the

opening so that 20 there is no burr.

Direction of Piping

Horizontally perpendicular to the unit

Connection

There are 6 directions allowed, namely, horizontally perpendicular to the unit, vertically down from right, horizontally out from right, horizontally out to left, horizontally out to right, vertically down from left.

Don’t form the piping downward at the left of the unit.

Dimension of Mounting Stand

of the outdoor unit

(unit : mm)	35
mounting stand	12
	8

225

35

500

100

Figure showing the Installation of Indoor and Outdoor Unit.

!CAUTION

In case the pipe length is more than 8m, add refrigerant R22 at 10 gram per every meter exceeds. However, pipe length shall not exceed 15m.

Be sure to completely seal any gap with putty.

2,300mm or more

6

5 4

3

Plug

● The difference in height between the indoor and outdoor unit should be kept below 5m.

● The connecting pipe, no matter big or small, should all be insulated with insulation pipe and then wrapped with plastic tape. (The insulator will deteriorate if it is not wrapped with tape).

The connection of insulated drain hose.

Please use insulated drain hose for the indoor piping (commercial product).

1Installation of Mounting Plate, Wall Penetration and Installation of Protection Pipe

!CAUTION

●The draining of the water container inside the indoor unit can be done from the left. Therefore the mounting plate must be fixed horizontally or slightly tilted towards the side of drain hose. Otherwise, condensed water may overflow the water container.

Direct Mounting On The Wall

2Installation of the Indoor Unit

VERTICALLY DOWNWARD PIPING

Preparation

● Connect power cord.
● Pull out the pipe, power cord and drain hose.	Power line, pipe and
	drain hose must be
Installation	tied together with
	plastic tape.

INSTALLATION OF COOLANT PIPES AFTER CONNECTION

●The coolant pipes should be adjusted to fit into the

hole on the wall and then ready for further connection.
● The terminals of 2 connected pipes must be covered	Drain hose
with insulator used for terminal connection.
● Connect the power cord.
● After adjustment, fit the power cord and pipes into	Pipe
the space available under the indoor unit.	Power cord

●Please use hidden beams in the wall to hold the mounting plate.

	External dimension of
30mm	indoor unit
		180mm
200mm
45mm		45mm	298mm
	80mm	180mm
1030mm	Drain Hose

●The upper part of the indoor unit is hanged on the mounting plate.

●The projection at the lower part of the indoor

unit is hooked onto the mounting plate.			! CAUTION
Mounting Plate			Please pull the lower part
	Lift the body	Mounting	of the indoor	unit
		Plate	outwards to check if the
Coolant pipe	of the unit
	upwards and	Projection	unit is hooked onto the
Protection	then force		mounting plate. Improper
	it downwards.		installation may	cause
Pipe

Pipe

! CAUTION

● The rubber strap used for fixing the insulator should not be tied with great force. Otherwise, this will damage heat insulation and causes water condensation.

Pipe Rubber strap tied with great force

INDOOR UNIT

Mounting

Plate

Level

Screw for Mounting plate	Line
	Mark	Hole for
Please use more
		pipe
than 4 screws.

Procedures of Installation and Precautions

●Procedures to fix the mounting plate.

1. Drill holes on wall.	2.Fix the mounting plate on
(As shown below)	wall with 4.1 x 32 screw
	(As shown in figure below)

Drain Hose Power Cord vibration and noise.

Hook

HORIZONTAL PIPING

Preparation

Change of Drain Hose and Installation Procedures.

●Exchange the location of drain hose and drain cap during horizontal piping as shown in figure below. Be sure to plug in the drain hose until the insulating material folds upon itself.

●Please use pliers to pull out the drain cap.

(This is an easier way to remove the drain cap).

THE CONNECTION OF COOLANT PIPE DURING THE INSTALLATION OF INDOOR UNIT

	Preparation To Install Coolant Pipes		! CAUTION
●	Coolant pipes and power cord must be tied together.		● Please fix in the plastic
●	The front part of the coolant pipes are at locations		core after flaring to avoid
	marked with “ ￿ ” symbol.		plastic chips entering the
			pipes.
			below
			5mm
	0.85m	Please bend at a small
		radius to form an arc
	Installation		Temporary stand
Hang the indoor unit onto the mounting plate. Use the temporary
stand at the back of the indoor unit to push its lower part 15cm
forwards.			Projection

●Place the drain hose through the hole on the wall.

Drain cap Drain hose

Drain cap
● Procedures to fix the holder of remote control.	Drain hose
1. Drill holes on wall.
(As shown below)
● Remove the cap for drain hose installation
Drain cap	Drain hose
Please insert	Please insert
until here	until here

● Insulate the connecting portion of coolant pipe with insulator. Hook

●Connect the power cord.

●After adjustment, the power cord and coolant pipes are placed

into the space available under the indoor unit.

● The projection of indoor unit must hook to the mounting			about 15cm
plate.
Heat insulation		Protection
pipe
	Pull this to the front	pipe
Coolant pipes	during the connection	Drain hose		Connected
	of coolant pipes to
			Connecting cord	section
Power cord	ease task.			Holder

3 Installation of Drain Hose

Wall Penetration and Installation of Protection Pipe

! CAUTION

Condensed water may leak out if not inserted properly.

!

CAUTION

●

Drill a ø 65mm hole on wall

HORIZONTAL & DOWNWARD PIPING – MAKING OPENINGS

which

is

slightly

tilted

Outdoor

! CAUTION

towards

the outdoor

side.

Indoor

● During horizontal or downward piping, use a knife to cut

Be

sure that the

2~5mm

Drill the wall at a small angle.

drain hose is not

Be sure that the wire is not

openings as shown in figure. Then smoothen the edges

● Cut the protection pipe

Drain

water

loosely connected

according

to

the

wall

in contact with any metal

of openings with a file.

or bent.

Stagment

thickness.

in the wall. Please use the

Pipe

Openings

Stagment

●

Empty gap in the sleeve of

Seal with

protection pipe as wire

support

Bending

WALL

upwards

water

putty

passing through the hollow

protection

pipe

should be

Protection

Sleeve of

● Transform the piping while holding down the lower portion

completely sealed with putty

protection

part of the wall so as

to

of pipe-support by hand.

!

You are free to choose the side (left or right) for the installation of drain

pipe

pipe

prevent the possibility

of

to avoid dripping of rain

Pull up the pipe after

CAUTION

hose. Please ensure the smooth flow of condensed water of the indoor

water into the room.

damaged by mouse.

bending downward

unit during installation. (Carelessness may result in water leakage.)

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