Mitsubishi Heavy Industries SRK60ZIX-S, Service Manual

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2.5 Application data
2.5.1 Installation of indoor unit
 Please read these "Safety Precautions" first then accurately execute the installation work.

For installing qualified personnel, take precautions in respect to themselves by using suitable protective clothing, groves, etc., and then perform the installation works.
 Though the precautionary points indicated herein are divided under two headings, and , those points which are related to the strong possibility of an installation done in error resulting in death, serious injury or environmental pollution are listed in the section. However, there is also a
possibility of serious consequences in relationship to the points listed in the section as well. In either case, important safety related information is indicated, so by all means, properly observe all that is mentioned.

Please pay attention not to fall down the tools, etc. when installing the unit at the high position.
 After completing the installation, along with confirming that no abnormalities were seen from the operation tests. Please explain operating methods as well as maintenance methods to the user (customer) of this equipment, based on the user's manual. Moreover, ask the customer to keep this sheet together with the user's manual.
 If unusual noise can be heard during operation, consult the dealer.
SAFETY PRECAUTIONS
This instruction manual illustrates the method of installing an indoor unit.
For electrical wiring work, please see instructions set out on the backside.
For outdoor unit installation and refrigerant piping, please refer to the installation manual that comes with your outdoor unit.
A wired remote control unit is supplied separately as an optional part.
INSTALLATION DIRECTIONS
FLOOR TYPE AIR CONDITIONER.
R410A REFRIGERANT USED
RFB012A002
Necessary tools for the installation work
1
2
3
4
5
6
7
8
9
10
11
12
13
1
1
1
9
2
2
2
2
1
1
1
1
1
1
1
Q'ty
Q'ty
Standard accessories (Installation kit)
Accessories for indoor unit
Installation board
(Attached to the rear of the indoor unit)
Wireless remote control
Remote control holder
Battery [R03(AAA,Micro) 1.5V]
Air-cleaning filters
Filter holders
(Attached to the front panel of indoor unit)
Pipe cover (200mm)
2
Band
Tapping screws
(for installation board 4dia. by 25mm)
Wood screw
(for remote control switch holder 3.5(mm). by 16mm)
Option parts
Sealing plate
Sleeve
Inclination plate
Putty
Drain hose (extention hose)
Piping cover
(for insulation of connection piping)
Plus headed driver
Knife
Saw
Tape measure
Hammer
Spanner wrench
Torque wrench
Hole core drill (65mm in diameter)
Wrench key (Hexagon) [4m/m]
Flaring tool set
Gas leak detector
Pipe bender
Gauge for projection adjustment
Used when flare is made by using
conventional flare tool
( )
( )
( )
14.0 ~ 61.0N•m
(1.4 ~ 6.1kgf•m)
(
Designed specifically
for R410A
Designed specifically
for R410A
)
2
3
4
5
6
7
8
9
10
A
18.5
Wireless remote control
Remote control holder
Wood screws
Piping is possible in the rear,
left,left rear, left downward,
right or downward direction.
Right
Rear
Downward
Left rear
Left downward
Left
15
60
60
60
85.3 22.7
100
55
157.2 76.3
45
65
65 65
470
80
91.5
65
45
For Right or Left rear piping
Right rear piping Left rear piping
For Right or Left piping
Right/Left piping
For Right or Left bottom piping
Left bottom piping
Right bottom piping
Latch
Latch
WARNING
 Please avoid installing this unit in the locations where oil splashes and moisture are abundant (e.g., kitchens, mechanical workshops) or where the
outside air is likely to flow in. These locations may cause corrosion and lower performance of the heat exchanger and cause damage to plastic parts.

Please avoid installing this unit in the locations with corrosive gases (such as sulfurous acid gas), inflammable gases (such as thinner, gasoline) and
areas where there are possibilities of gas accumulation or where a volatile inflammable material is handled. These locations can cause corrosion to
the heat exchanger and damage to plastic parts. Also, the inflammable gas could cause fire.

Please avoid installing this unit in the vicinity of equipment generating electromagnetic waves such as hospital equipment or equipment generating
high-frequency waves. A failure to observe this instruction may result in controller performance errors due to noise generation.
 Please avoid installing and using this unit in a place where it is subject to sea breezes (coastal area). Installation in such a place may result in the
corrosion of exterior panels and the heat exchanger.
 Do not place the remote control at locations that receives direct sunlight. This may cause malfunction and deformation.
 Spatters from welding, etc., if hit the unit, can damage (pinhole) its drain pan and other components and cause a water leak. Care must be taken in
performing a welding operation near this unit and take necessary precautions to prevent spatters from entering this unit.
 For installation work, be careful not to get injured with the heat exchanger, piping flare portion or screws etc.
 For the drain pipe, follow the installation manual to insure that it allows proper drainage and thermally insulate it to prevent condensation.
Inadequate plumbing can result in water leakage and water damage to interior items.
 The installation of an earth leakage breaker is necessary depending on the established location of the unit. Not installing an earth leakage breaker
may result in electric shock.

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.
 Secure the regulated space for inspection and maintenance
When it is not possible to keep enough space, this may cause injury due to falling from the installation place.

To prevent the falling, institute the everlasting ladder and handrail etc., to the aisle when installing the outdoor unit in the location with rooftop or
altitude. Or, for surrounding of the outdoor unit, institute the fence and handrail etc., to the aisle to prevent the falling.
 Performing the heat insulation and condensation of the refrigerant piping
If the heat insulation and condensation of the refrigerant piping is not correctly, this may cause the water leakage, dew dropping and household wetting etc.
 Be careful not to injury due to damage of the unit installing work when leaving of the packaging materials.

Do not install the unit where there is a concern about leakage of combustible gas.
The rare event of leaked gas collecting around the unit could result in an outbreak of fire.
 Do not touch the suction or aluminum fin on the outdoor unit
This may cause injury.
 Do not install the outdoor unit where is likely to be a nest for small animals
Small animals may come into the electronic components and may cause breakdown and fire. Also,instruct the user to keep the surroundings clean.

Do not install the outdoor unit at the place where fan airflow falls on the garden tree etc.
This may cause damage to the garden tree etc., due to the fan airflow.
 Do not put anything on the outdoor unit and operating the unit.
This may cause damage the objects or injury due to falling to the object.
CAUTION
CAUTIONS FOR INSTALLATION
 The system should be applied to places as households, residences and the like.
 The equipment shall be installed in accordance with national wiring regulations.
 The connection to the fixed wiring of the mains supply must be made via a double pole isolating switch with a contact gap of at least 3mm in each pole.
 When the outdoor unit has a possibility of being overturned or being displaced and fall from its original installation position, the outdoor unit
should be fixed in its position by use of anchor bolts or wires.
BEFORE INSTALLATION
 Before installation check that the power supply matches the air conditioner.
SELECTION OF INSTALLATION LOCATION
INSTALLATION OF INDOOR UNIT
Indoor unit
Installing the support of piping
(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 solid place where the unit or the wall will not 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.
 Install the indoor unit on flat wall.
Wireless remote control
In case of piping in the right rear direction
 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.

Drill a hole with whole core drill.

In case of rear piping draw out, cut off the lower
and the right side portions of the sleeve collar.
 Tape only the portion
that goes through the
wall.
 Always tape the wiring
with the piping.
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 holes and fixture of sleeve (Option parts)
Taping of the exterior
Top Indoor side
Outdoor side
Thicknese of the wall + 1.5cm
5
65
Indoor side Outdoor side Installed state
Turn to
tighten
b b c
a
CAUTION
CAUTION
WARNING WARNING
 To disconnect the appliance from the mains supply this appliance must be connected to the mains by means of a circuit breaker or a switch (use a
recognized 16A) with a contact separation of at least 3mm.

The appliance shall be installed in accordance with national wiring regulations.
 When a plug is connected to the power cord, a plug conforming to the IEC60884-1 standard must be used.
 This system should be applied to places as households, residences and the like. Application to inferior environment such as engineering shop
could cause equipment malfunction.
 Please entrust installation to either the company which sold you the equipment or to a professional contractor. Defects from improper installations
can be the cause of water leakage, electric shocks and fires.

Execute the installation accurately, based on following the installation manual. Again, improper installations can result in water leakage, electric
shocks and fires.
 For installation, confirm that the installation site can sufficiently support heavy weight. When strength is insufficient, injury can result from a falling
of the unit.
 For electrical work, please see that a licensed electrician executes the work while following the safety standards related to electrical equipment,
and local regulations as well as the installation instructions, and that only exclusive use circuits are used.
Insufficient power source circuit capacity and defective installment execution can be the cause of electric shocks and fires.
 Accurately connect wiring using the proper cable, and insure that the external force of the cable is not conducted to the terminal connection part,
through properly securing it. Improper connection or securing can result in heat generation or fire.

Take care that wiring does not rise upward, and accurately install the lid/service panel. It's improper installation can also result in heat generation or fire.
 Always use accessory parts and authorized parts for installation construction. Using parts not authorized by this company can result in water
leakage, electric shock, fire and refrigerant leakage.

Ventilate the work area when refrigerant leaks during the operation.
Coming in contact with fire, refrigerant could generate toxic gas.
 Confirm after the foundation construction work that refrigerant does not leak.
If coming in contact with fire of a fan heater, a stove or a movable cooking stove, etc., refrigerant leaking in the room could generate toxic gas.
 Turn off the power source during working on the inside of the unit such as servicing or installing work.
This may cause electric shock.

Use only pipe, flare nut and tools that have been designed to operate with R410A.
Using existing parts (R22) may cause the unit failure, even as due to serious accident such as explosion of the cooling cycle or injury etc.
 For pump down work, stop the compressor before removing the refrigerant pipe.
If the refrigerant pipe is removed when the compressor is in operation with the service valves open (liquid side and gas side), air would be mixed in
the refrigerant circuit and this may cause explosion and injuries due to abnormal high pressure in the cooling cycle.
 Connect the pipes for refrigerant circuit securely in installation work before compressor is operated
If the compressor is operated when the service valve is open without connecting the pipe, this may cause frostbite and injuries due to refrigerant
leakage rapidly. Also, the unit is absorbed the air etc., this may cause explosion and injuries due to abnormal high pressure in the cooling cycle.
 Tighten the flare nut by torque wrench with specified method.
If the flare nut were tightened with excess torque, this may cause burst and refrigerant leakage after a long period, and then, this may cause
generate the harmful substance due to touch the flammable materials.
 Make sure there is no dust or clogging on both plug and socket nor loose connection of the socket before plugging of the power plug. Then, the
power plug must be inserted tightly.
Accumulation of dust, clogging on the socket or plug, or loose installation of the socket may cause electric shock and fire. Replace the socket if it is loose.
 Do not open the service valves (liquid side and gas side) until refrigerant piping construction, air-tightness test and evacuation are completed
This may cause frostbite and injuries due to refrigerant leakage rapidly. Also, if the refrigerant gas leakage occurs during installing work, stop the
work such as brazing work and then ventilation of the room. This may cause generate the toxic gas due to touch the flammable materials.
 Do not put the drain pipe directly into the ditch where toxic gas such as sulfur is generated.
Toxic gas would flow into the room. Also, this may cause corrosion of indoor unit, and malfunction or refrigerant leakage.
 Be sure to bring back the packing material, form polystyrene, band and vinyl back etc., of the indoor and/or outdoor units after complete the
installation work, and then implement appropriate measures such as breaking them.

When setting up or moving the location of the air conditioner, do not mix air etc. or anything other than the designated refrigerant (R410A) within
the refrigeration cycle. Rupture and injury caused by abnormal high pressure can result from such mixing.
 Do not processing, splice the power cord, or share a socket with other power plugs.
This may cause fire or electric shock due to defecting contact, defecting insulation and over-current etc.
 Do not bundling, winding or processing for the power cord. Or, do not deforming the power plug due to tread it This may cause fire or heating.
 Do not vent R410A into the atomosphere:R410A is a fluorinated greenhouse gas, covered by the Kyoto Protocol with a Groval Warming Potential
(GWP)=1975
 Execute proper grounding. Do not connect the ground wire to a gas pipe, water pipe, lightning rod or a telephone ground wire. Improper placement
of ground wires can result in electric shock.
Strictly prohibited
Observe instructions with
great care
Provide proper earthing
 Symbols which appear frequently in the text have the following meaning:
Open and detachment of the air inlet panel

To open, pull the panel at both ends of upper part
and release latches, and undo the strings.
Then remove the panel.
How to remove the front panel
Indoor unit piping direction
1
Remove the air inlet panel.
2 Remove the 5 set screws.
3 Remove the 3 latches in the upper section.
If the latches are difficult to remove, push the latch
portion out using a screw driver, for example.
4
Move the lower part of the panel forward and
remove the 6 latches in the under section.
CAUTION  Arrange the drain hose in a downward angle
 Avoid the following drain piping.
 Pour water to the drain pan located under the heat exchanger, and ensure that the water is discharged outdoor.

When the extended drain hose is indoor, always use a shield pipe (to be arranged by the user) and ensure it is
thermally insulated
Drainage
Go through all installation steps and check if the
dralnage is all right. Otherwise water leak may occur.
Shield pipe
Drain hose Extended drain hose
When it is exposed indoor.
Higher than specified The drain hose
tip is in water
Wavy The gap to the ground is
5 cm or less
The drain hose
tip is in the gutter
Odor from
the gutter
Installation board
5 cm minimum
from the wall
from the wall
5 cm +Service space (30cm)
7 cm minimum from the ceiling
15 cm or below from the floor
Sleeve
(sold separately)
When removing the air-inlet panel,
be careful not to drop it on your feet.
CAUTION
1