-
0
-
'15 • SR-T-185
Check before installation work
1
1
2
2
1
Q’ty
Standard accessories (installation kit)
Accessories for indoor unit
Wireless remote control
Remote control holder
Battery [R03 (AAA, Micro) 1.5V]
Joint (for drain hose)
2
8
2
4
Washer (for suspension bolt M10)
2
Flat head machine screw
(for remote control signal receiver M3.5x10)
1
Plate (display)
Clamp (for drain hose) (big:1, small:1)
Wood screws
(for remote control holder ø3.5 X 16mm)
• Model name and power source
• Refrigerant piping length
• Piping, wiring and miscellaneous small parts
10
9
8
Band
Pipe cover (big:1, small:1)
13
12
7
6
5
2
1
Remote control signal receiver
3
1
Installation frame (for remote control signal receiver)
4
1
Necessary tools for the installation work
1
2
3
4
5
6
7
8
9
Plus headed driver
Knife
Saw
Tape measure
Hammer
Spanner wrench
Torque wrench [14.0~62.0N·m (1.4~6.2kgf·m)]
Hole core drill (65mm in diameter)
Wrench key (Hexagon) [4m/m]
10
Flaring tool set (Designed specifically for R410A)
11
Gas leak detector (Designed specifically for R410A)
12
Gauge for projection adjustment (Used when flare is
made by using conventional flare tool)
13
Pipe bender
1
Q’ty
Option parts (Separately sold parts)
Bottom air inlet kit
25, 35 models : UT-BAT1EF
50, 60 models : UT-BAT2EF
Q’ty
Locally procured parts
1
4
8
4
Drain hose (VP25)
Suspension bolts (M10)
Nuts (M10)
Spring lock washers (M10)
H
G
F
E
1
1
1
1
Sealing plate
Sleeve
Inclination plate
Putty
D
C
B
A
11
When drilling the wall that contains a metal lath, wire lath or metal plate, be sure to use pipe hole sleeve sold separately.
Drilling of hole and fixture of sleeve (Locally procured parts)
Top
Sleeve
Thickness of the
wall + 1.5cm
Indoor side
Outdoor side
5
ø65
Indoor side
Outdoor side
Installed state
Turn to
tighten
B
C
* Sleeve is for use in refrigerant piping work. Please install another pipe separately for drain piping work.
In case of rear piping draw out, cut off the lower
and the right side portions of the sleeve collar.
Drill a hole with whole core drill.
※
Dimensions of the opening on the ceiling after removing inspection opening (1)
Model
25, 35
50, 60
A
750
950
B
770
970
C
100(80)
or more
D
150(50)
or more
E
270
or more
F
150(0)
or more
D
Dedicated
inspection opening
must be provided.
Inspection opening (1)
Inspection opening (2)
Indoor Unit
Ceiling plate
Air intake direction
E
F
unit : mm
1000 or more
unit : mm
Obstacle
1000 or more
Obstacle
Pipe locations
All models
Suspension Bolt Location
A
B
Model
25, 35
50, 60
A
790
990
B
457
457
○
Adhere to the measurements given
below for the length of the suspension
bolts.
Unit
Suspension bolt (M10)
Under 60 mm
Remove bracket
in this direction.
Inspection opening (1)
Service
Inspection opening (2)
Clamping of the flare of required and
gas refrigerant pipe
Use
Not Use
Drain pipe connection
Use
Not Use
Installation and removal of blower
Not Use
Use
Control box
Connecting wire (between indoor and
outdoor)
Use
Not Use
Unit display section (Remote control
signal receiver)
Use
Not Use
Replace drain pump
Use
Not Use
Replace heat exch sensor
Use
Not Use
Replace air filter
Not Use
Use
Refrigerant gas pipe
Refrigerant liquid pipe
Drain Pipe connection
VP25 (I.D. 25, O.D. 32)
500
413
370
326
380
200
168
105
55
30
30
Gravity drainage
The minimum dimensions when used Bottom
air inlet kit (Option parts) are shown in
parentheses.
①
Wireless remote control
②
Remote control holder
⑤
Wood screws
Sleeve
(Locally procured
parts)
③
Remote control
signal receiver
450
○
Remove bracket from the unit after
unpacking according to process as shown
below.
(1) Loosen 2 screws.
(2) Remove bracket.
(3) Tighten the screws.
Sleeve
Inclination plate
A Sealing plate
B
Drain pipe, refrigerant gas pipe
and refrigerant liquid pipe
A
200
C
200
Air blowout direction
Air outlet
100
450
B
F
E
Screw
CAUTION
Completely seal the hole on
the wall with putty. Otherwise,
furniture, or other, may be
wetted by leaked water or
dewing.
putty
putty
Indoor side
Outdoor side
D
D
Grill (Prepare on site)
37
SELECTION OF INSTALLATION LOCATION
INSTALLATION OF INDOOR UNIT
Indoor unit
(Install at location that meets the following conditions, after getting approval from the customer)
○ Where there is no obstructions to the air flow and where the cooled and heated air can be evenly distributed.
○ A firm location that may sustain the weight of the unit, and do not cause the unit or the ceiling to vibrate.
○ A place where there will be enough space for servicing. (Where space mentioned below can be secured)
○ Where wiring and the piping work will be easy to conduct.
○ The place where receiving part is not exposed to the direct rays of the sun or the strong rays of the street lighting.
○ A place where it can be easily drained.
○ A place separated at least 1m away from the television or the radio. (To prevent interference to images and sounds.)
○ Places where this unit is not affected by the high frequency equipment or electric equipment.
○ Avoid installing this unit in place where there is much oil mist.
○ Places where there is no electric equipment or household under the installing unit.
Wireless remote control
Space for installation and service
○ A place where the air-conditioner can be received the signal surely during operating the wireless remote control.
○ Places where there is no affected by the TV and radio etc.
○ Do not place where exposed to direct sunlight or near heat devices such as a stove.
○ Where the suction inlet of the unit is located far from the air inlet on the ceiling, the entire inside of ceiling acts as an
air suction duct so that the capacity is reduced at the startup.
○
Areas where dew point is lower than around 28°C and relative humidity is lower than 80%.
This indoor unit is tested under the condition of JIS (Japan Industrial Standard) high humidity condition and
confirmed there is no problem. However, there is some risk of condensation drop if the air-conditioner is operated
under the severer condition than mentioned above.
If there is a possibility to use it under such a condition, attach additional insulation of 10 to 20mm thick for entire
surface of indoor unit, refrigeration pipe and drain pipe.
Inspection opening for services
R410A REFRIGERANT USED
FOR MODEL SRR SERIES
INSTALLATION MANUAL FOR INDOOR UNIT
RJJ012A002
WARNING
• Installation must be carried out by the qualified installer.
If you install the system by yourself, it may cause serious trouble such as
water leaks, electric shocks, fire and personal injury, as a result of a
system malfunction. Do not carry out the installation and maintenance
work except the by qualified installer.
• Install the system in full accordance with the installation manual.
Incorrect installation may cause bursts, personal injury, water leaks,
electric shocks and fire.
• Be sure to use only for household and residence.
If this appliance is installed in inferior environment such as machine shop
and etc., it can cause malfunction.
• Use the original accessories and the specified components for
installation.
If parts other than those prescribed by us are used, It may cause water
leaks, electric shocks, fire and personal injury.
• Install the unit in a location with good support.
Unsuitable installation locations can cause the unit to fall resulting in
material damage and personal injury.
• Ventilate the working area well in the event of refrigerant leakage
during installation.
If the refrigerant comes into contact with naked flames, poisonous gas is
produced.
• When installing in small rooms, take prevention measures not to
exceed the density limit of refrigerant in the event of leakage,
referred by the formula (accordance with ISO5149).
If the density of refrigerant exceeds the limit, consult the dealer and
install the ventilation system, otherwise lack of oxygen can occur, which
can cause serious accident.
• After completing installation, check that no refrigerant leaks from
the system.
If refrigerant leaks into the room and comes into contact with an oven or
other hot surface, poisonous gas is produced.
• Use the prescribed pipes, flare nuts and tools for R410A.
Using existing parts (for R22 or R407C) can cause the unit failure and
serious accidents due to burst of the refrigerant circuit.
•
Tighten the flare nut by torque wrench with specified method.
If the flare nuts were tightened with excess torque, this may cause burst
and refrigerant leakage after a long period.
• The electrical installation must be carried out by the qualified
electrician in accordance with “the norm for electrical work” and
“national wiring regulation”, and the system must be connected to
the dedicated circuit.
Power source with insufficient capacity and incorrect function done by
improper work can cause electric shocks and fire.
• Be sure to shut off the power before starting electrical work.
Failure to shut off the power can cause electric shocks, unit failure or
incorrect function of equipment.
• Be sure to use the cables conformed to safety standard and cable
ampacity for power distribution work.
Unconformable cables can cause electric leak, anomalous heat
production or fire.
• This appliance must be connected to main power source by means
of a circuit breaker or switch (fuse:16A) with a contact separation of
at least 3mm.
• When plugging this appliance, a plug conforming to the norm
IEC60884-1 must be used.
• Use the prescribed cables for electrical connection, tighten the
cables securely in terminal block and relieve the cables correctly to
prevent overloading the terminal blocks.
Loose connections or cable mountings can cause anomalous heat
production or fire.
• Arrange the wiring in the control box so that it cannot be pushed up
further into the box. Install the service panel correctly.
Incorrect installation may result in overheating and fire.
• Be sure to switch off the power source in the event of installation,
inspection or servicing.
If the power source is not shut off, there is a risk of electric shocks, unit
failure or personal injury due to the unexpected start of fan.
• Be sure to wear protective goggles and gloves while at work.
• Earth leakage breaker must be installed.
If the earth leakage breaker is not installed, it can cause electric shocks.
CAUTION
•
Use the circuit breaker of correct capacity. Circuit breaker should
be able to disconnect all poles under over current.
Using the incorrect one could cause the system failure and fire.
• Install isolator or disconnect switch on the power source wiring in
accordance with the local codes and regulations.
The isolator should be locked in OFF state in accordance with
EN60204-1.
•
Be sure to install indoor unit properly according to instruction
manual so that drainage can run off smoothly.
Improper installation of indoor unit can cause dropping water into the
room and damaging personal property.
• Install the drainage pipe to run off drainage securely according to
the installation manual.
Incorrect installation of the drainage pipe can cause dropping water into
the room and damaging personal property.
• Be sure to install the drainage pipe with descending slope of 1/100
or more, and not to make traps and air-bleedings.
Check if the drainage runs off securely during commissioning and ensure
the space for inspection and maintenance.
•
After maintenance, all wiring, wiring ties and the like, should be
returned to their original state and wiring route, and the necessary
clearance from all metal parts should be secured.
• Secure a space for installation, inspection and maintenance
specified in the manual.
Insufficient space can result in accident such as personal injury due to
falling from the installation place.
•
Take care when carrying the unit by hand.
If the unit weights more than 20kg, it must be carried by two or more
persons. Do not carry by the plastic straps, always use the carry handle
when carrying the unit by hand. Use gloves to minimize the risk of cuts
by the aluminum fins.
•
Dispose of any packing materials correctly.
Any remaining packing materials can cause personal injury as it contains
nails and wood. And to avoid danger of suffocation, be sure to keep the
plastic wrapper away from children and to dispose after tear it up.
• For installation work, be careful not to get injured with the heat
exchanger, piping flare portion or screws etc.
• Be sure to insulate the refrigerant pipes so as not to condense the
ambient air moisture on them.
Insufficient insulation can cause condensation, which can lead to
moisture damage on the ceiling, floor, furniture and any other valuables.
• When perform the air-conditioner operation (cooling or drying
operation) in which ventilator is installed in the room. In this case,
using the air-conditioner in parallel with the ventilator, there is the
possibility that drain water may backflow in accordance with the
room lapse into the negative pressure status. Therefore, set up the
opening port such as incorporate the air into the room that may
appropriate to ventilation (For example; Open the door a little). In
addition, just as above, so set up the opening port if the room lapse
into negative pressure status due to register of the wind for the high
rise apartment etc.
• Be sure to perform air tightness test by pressurizing with nitrogen
gas after completed refrigerant piping work.
If the density of refrigerant exceeds the limit in the event of refrigerant
leakage in the small room, lack of oxygen can occur, which can cause
serious accidents.
• Do not install the unit in the locations listed below.
• Locations where carbon fiber, metal powder or any powder is floating.
• Locations where any substances that can affect the unit such as sulphide
gas, chloride gas, acid and alkaline can occur.
• Vehicles and ships.
• Locations where cosmetic or special sprays are often used.
• Locations with direct exposure of oil mist and steam such as kitchen and
machine plant.
• Locations where any machines which generate high frequency harmonics
are used.
• Locations with salty atmospheres such as coastlines.
• Locations with heavy snow (If installed, be sure to provide base flame and
snow hood mentioned in the manual).
• Locations where the unit is exposed to chimney smoke.
• Locations at high altitude (more than 1000m high).
• Locations with ammonic atmospheres (e.g. organic fertilizer).
• Locations with calcium chloride (e.g. snow melting agent).
• Locations where heat radiation from other heat source can affect the unit.
• Locations without good air circulation.
• Locations with any obstacles which can prevent inlet and outlet air of the unit.
• Locations where short circuit of air can occur (in case of multiple units
installation).
• Locations where strong air blows against the air outlet of outdoor unit.
• Locations where something located above the unit could fall.
It can cause remarkable decrease in performance, corrosion and damage of
components, malfunction and fire.
• Do not install the indoor unit in the locations listed below (Be sure to
install the indoor unit according to the installation manual for each
model because each indoor unit has each limitation).
• Locations with any obstacles which can prevent inlet and outlet air of the
unit.
• Locations where vibration can be amplified due to insufficient strength of
structure.
• Locations where the infrared receiver is exposed to the direct sunlight or
the strong light beam (in case of the infrared specification unit).
• Locations where an equipment affected by high harmonics is placed (TV
set or radio receiver is placed within 1m).
• Locations where drainage cannot run off safely.
It can affect performance or function and etc.
• Do not install the unit near the location where leakage of
combustible gases can occur.
If leaked gases accumulate around the unit, it can cause fire.
• Do not install the unit where corrosive gas (such as sulfurous acid
gas etc.) or combustible gas (such as thinner and petroleum gases)
can accumulate or collect, or where volatile combustible substances
are handled.
Corrosive gas can cause corrosion of heat exchanger, breakage of plastic
parts and etc. And combustible gas can cause fire.
• Do not use the indoor unit at the place where water splashes may
occur such as in laundries.
Since the indoor unit is not waterproof, it can cause electric shocks and fire.
• Do not install nor use the system close to the equipment that
generates electromagnetic fields or high frequency harmonics.
Equipment such as inverters, standby generators, medical high frequency
equipments and telecommunication equipments can affect the system, and
cause malfunctions and breakdowns. The system can also affect medical
equipment and telecommunication equipment, and obstruct its function or
cause jamming.
• Do not place any variables which will be damaged by getting wet
under the indoor unit.
When the relative humidity is higher than 80% or drainage pipe is clogged,
condensation or drainage water can drop and it can cause the damage of
valuables.
• Do not install the remote control at the direct sunlight.
It can cause malfunction or deformation of the remote control.
• Do not use the unit for special purposes such as storing foods,
cooling precision instruments and preservation of animals, plants or
art.
It can cause the damage of the items.
• Do not use any materials other than a fuse with the correct rating in
the location where fuses are to be used.
Connecting the circuit with copper wire or other metal thread can cause unit
failure and fire.
• Do not touch any buttons with wet hands.
It can cause electric shocks.
• Do not touch any refrigerant pipes with your hands when the system
is in operation.
During operation the refrigerant pipes become extremely hot or extremely
cold depending the operating condition, and it can cause burn injury or frost
injury.
• Do not wash the inside of the air-conditioner.
Water leakage and permanent damage may result.
Electrical hazard exists.
• Carry out the electrical work for ground lead with care.
Do not connect the ground lead to the gas line, water line, lightning conductor or telephone line’s ground lead. Incorrect grounding can cause unit
faults such as electric shocks due to short-circuiting.
• Do not put the drainage pipe directly into drainage channels where
poisonous gases such as sulphide gas can occur.
Poisonous gases will flow into the room through drainage pipe and
seriously affect the user’s health and safety. This can also cause the
corrosion of the indoor unit and a resultant unit failure or refrigerant leak.
• Ensure that no air enters in the refrigerant circuit when the unit is
installed and removed.
If air enters in the refrigerant circuit, the pressure in the refrigerant circuit
becomes too high, which can cause burst and personal injury.
• Do not process or splice the power cord, or share the socket with
other power plugs.
This may cause fire or electric shock due to defecting contact, defecting
insulation and over-current etc.
• Do not bundle or wind or process the power cord. Do not deform
the power cord by treading it.
This may cause fire or heating.
• Do not vent R410A into the atmosphere : R410A is a fluorinated
greenhouse gas, covered by the Kyoto Protocol with Groval
Warming Potential (GWP)=1975.
• Do not run the unit with removed panels or protections.
Touching rotating equipments, hot surfaces or high voltage parts can
cause personal injury due to entrapment, burn or electric shocks.
• Do not perform any change of protective device itself or its setup
condition.
The forced operation by short-circuiting protective device of pressure
switch and temperature controller or the use of non specified component
can cause fire or burst.
SAFETY PRECAUTIONS
• Before installation, read the “SAFETY PRECAUTIONS” carefully and strictly
follow it during the installation work in order to protect yourself.
• The precautionary items mentioned below are distinguished into two levels,
and .
: Wrong installation would cause serious consequences such
as injuries or death.
: Wrong installation might cause serious consequences
depending on circumstances.
Both mention the important items to protect your health and safety so strictly
follow them by any means.
• Be sure to confirm no anomaly on the equipment by commissioning after completed
installation and explain the operating methods as well as the maintenance methods
of this equipment to the user according to the owner’s manual.
• Keep the installation manual together with owner’s manual at a place where
any user can read at any time. Moreover if necessary, ask to hand them to a
new user.
• Before starting the installation work, proper precautions (using suitable
protective clothing, groves etc.) should be taken by qualified installer.
• Pay attention not to fall down the tools, etc. when installing the unit at the
high position.
• If unusual noise can be heard during operation, consult the dealer.
• The meanings of “Marks” used here are shown as follows:
Never do it under any
circumstances.
Always do it according to the
instruction.
CAUTION
WARNING
CAUTION
WARNING
• This installation manual illustrates the method of installing an indoor unit.
• For electrical wiring work, see instructions set out on the backside.
• For outdoor unit installation and refrigerant piping, refer to page24.
• A wired remote control unit is supplied separately as an optional part.
• While installing the unit, be sure to check the selection of installation place,
power source specifications, usage limitation (piping length, height
differences between indoor and outdoor units, power source voltage etc.)
and installation spaces.
9. APPLICATION DATA
(1) Installation of indoor unit
