Air-Conditioners
PLA-RP·BA
INSTALLATION MANUAL
FOR INSTALLER
For safe and correct use, read this manual and the outdoor unit installation manual thoroughly before installing
the air-conditioner unit.
RG79D251K01_EN_0227.indd 1
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Contents
1.
2.
3.
4.
5.
Safety precautions .....................................................................................2
Installation location ....................................................................................3
Installing the indoor unit ............................................................................3
Installing the refrigerant piping ..................................................................5
Drainage piping work.................................................................................6
6.
7.
8.
9.
10.
Electrical work ...........................................................................................7
Test run....................................................................................................14
System control ........................................................................................17
Installing the grille....................................................................................17
Easy maintenance function .....................................................................19
1. Safety precautions
Before installing the unit, make sure you read all the “Safety precautions”.
Please report to your supply authority or obtain their consent before
connecting this equipment to the power supply system.
Warning:
Describes precautions that must be observed to prevent danger of injury or
death to the user.
Caution:
Describes precautions that must be observed to prevent damage to the unit.
Warning:
• Ask a dealer or an authorized technician to install the unit.
• For installation work, follow the instructions in the Installation Manual and
use tools and pipe components specifically made for use with refrigerant
specified in the outdoor unit installation manual.
• The unit must be installed according to the instructions in order to minimize the risk of damage from earthquakes, typhoons, or strong winds. An
incorrectly installed unit may fall down and cause damage or injuries.
• The unit must be securely installed on a structure that can sustain its weight.
• If the air conditioner is installed in a small room, measures must be taken
to prevent the refrigerant concentration in the room from exceeding the
safety limit in the event of refrigerant leakage. Should the refrigerant leak
and cause the concentration limit to be exceeded, hazards due to lack of
oxygen in the room may result.
After installation work has been completed, explain the “Safety Precautions,” use,
and maintenance of the unit to the customer according to the information in the
Operation Manual and perform the test run to ensure normal operation. Both the
Installation Manual and Operation Manual must be given to the user for keeping.
These manuals must be passed on to subsequent users.
:Indicates a part which must be grounded.
Warning:
Carefully read the labels affixed to the main unit.
• Ventilate the room if refrigerant leaks during operation. If refrigerant comes
into contact with a flame, poisonous gases will be released.
• All electric work must be performed by a qualified technician according to
local regulations and the instructions given in this manual.
• Use only specified cables for wiring.
• The terminal block cover panel of the unit must be firmly attached.
• Use only accessories authorized by Mitsubishi Electric and ask a dealer or
an authorized technician to install them.
• The user should never attempt to repair the unit or transfer it to another
location.
• After installation has been completed, check for refrigerant leaks. If refrigerant leaks into the room and comes into contact with the flame of a heater
or portable cooking range, poisonous gases will be released.
1.1. Before installation (Environment)
Caution:
• Do not use the unit in an unusual environment. If the air conditioner is installed in areas exposed to steam, volatile oil (including machine oil), or sulfuric gas, areas exposed to high salt content such as the seaside, the performance can be significantly reduced and the internal parts can be damaged.
• Do not install the unit where combustible gases may leak, be produced,
flow, or accumulate. If combustible gas accumulates around the unit, fire or
explosion may result.
• Do not keep food, plants, caged pets, artwork, or precision instruments in
the direct airflow of the indoor unit or too close to the unit, as these items
can be damaged by temperature changes or dripping water.
• When the room humidity exceeds 80% or when the drainpipe is clogged,
water may drip from the indoor unit. Do not install the indoor unit where
such dripping can cause damage.
• When installing the unit in a hospital or communications office, be prepared
for noise and electronic interference. Inverters, home appliances, highfrequency medical equipment, and radio communications equipment can
cause the air conditioner to malfunction or breakdown. The air conditioner
may also affect medical equipment, disturbing medical care, and communications equipment, harming the screen display quality.
1.2. Before installation or relocation
Caution:
• Be extremely careful when transporting the units. Two or more persons
are needed to handle the unit, as it weighs 20 kg or more. Do not grasp the
packaging bands. Wear protective gloves as you can injure your hands on
the fins or other parts.
• Be sure to safely dispose of the packaging materials. Packaging materials,
such as nails and other metal or wooden parts may cause stabs or other
injuries.
• Thermal insulation of the refrigerant pipe is necessary to prevent condensation.
If the refrigerant pipe is not properly insulated, condensation will be formed.
• Place thermal insulation on the pipes to prevent condensation. If the drainpipe is installed incorrectly, water leakage and damage to the ceiling, floor,
furniture, or other possessions may result.
• Do not clean the air conditioner unit with water. Electric shock may result.
• Tighten all flare nuts to specification using a torque wrench. If tightened
too much, the flare nut can break after an extended period.
1.3. Before electric work
Caution:
• Be sure to install circuit breakers. If not installed, electric shock may result.
• For the power lines, use standard cables of sufficient capacity. Otherwise, a
short circuit, overheating, or fire may result.
• When installing the power lines, do not apply tension to the cables.
• Be sure to ground the unit. If the unit is not properly grounded, electric shock
may result.
• Use circuit breakers (ground fault interrupter, isolating switch (+B fuse), and
molded case circuit breaker) with the specified capacity. If the circuit breaker
capacity is larger than the specified capacity, breakdown or fire may result.
1.4. Before starting the test run
Caution:
• Turn on the main power switch more than 12 hours before starting operation. Starting operation just after turning on the power switch can severely
damage the internal parts.
• Before starting operation, check that all panels, guards and other protective
parts are correctly installed. Rotating, hot, or high voltage parts can cause
injuries.
• Do not operate the air conditioner without the air filter set in place. If the air
filter is not installed, dust may accumulate and breakdown may result.
• Do not touch any switch with wet hands. Electric shock may result.
• Do not touch the refrigerant pipes with bare hands during operation.
• After stopping operation, be sure to wait at least five minutes before turning
off the main power switch. Otherwise, water leakage or breakdown may result.
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2. Installation location
Refer to the outdoor unit installation manual.
3. Installing the indoor unit
3.1. Check the indoor unit accessories (Fig. 3-1)
The indoor unit should be supplied with the following accessories.
1
2
3
4
5
6
7
8
Accessory name
Installation template
Washers (with insulation)
Washers (without insulation)
Pipe cover (for refrigerant piping joint)
Small diameter
Large diameter
Band
Screw with washer (M5 × 25) for mounting grille
Drain socket
Insulation
Flare nut 1/4F(P60)
Q'ty
1
4
4
1
1
8
4
1
1
1
Fig. 3-1
950
860-910
810
3.2. Ceiling openings and suspension bolt installation
locations (Fig. 3-2)
20-45
20-45
20-45
Caution:
Install the indoor unit at least 2.5m above floor or grade level.
For appliances not accessible to the general public.
950
-5
20-45
160
* 50-70
*105
17
Outer side of main unit
Bolt pitch
Ceiling opening
Outer side of Grille
17
35
+5
0
Min. 2500
135
+5
0
C
D
160
840
• Using the installation template (top of the package) and the gauge (supplied as
an accessory with the grille), make an opening in the ceiling so that the main unit
can be installed as shown in the diagram. (The method for using the template and
the gauge is shown.)
* Before using, check the dimensions of template and gauge, because they
change due to fluctuations of temperature and humidity.
* The dimensions of ceiling opening can be regulated within the range shown
in Fig.3-2; so center the main unit against the opening of ceiling, ensuring
that the respective opposite sides on all sides of the clearance between them
becomes identical.
• Use M10 (3/8") suspension bolts.
* Suspension bolts are to be procured at the field.
• Install securely, ensuring that there is no clearance between the ceiling panel &
grille, and between the main unit & grille.
(7.5)
150
90
187.5
620
860-910
605 +35
840
160
(7.5)
160
Grille
Ceiling
Multi function casement (option)
Entire periphery
*Note that the space between ceiling panel of the unit and ceiling slab, etc. must be 10 to 15 mm.
Min. 500
* When the optional multi-functional casement is installed, add 135 mm to the
dimensions marked on the figure.
(mm)
Fig. 3-2
D
258
298
The figure marked with * in the drawing represent the dimensions of the main unit
excluding those of the optional multi function casement. (Fig. 3-3)
284
377
* 190
* 170
* 140
60
C
241
281
3.3. Refrigerant and drainage piping locations of
indoor unit
24
B
90
A
Models
35, 50, 60, 71
100, 125, 140
(mm)
Models
35, 50, 60, 71
100, 125, 140
A
80
85
B
74
77
Drain pipe
Ceiling
Grille
Refrigerant pipe (liquid)
Refrigerant pipe (gas)
Water supply inlet
Main unit
* When the optional multi-functional casement is installed, add 135 mm to the
dimensions marked on the figure.
Fig. 3-3
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3. Installing the indoor unit
3.4. Branch duct hole and fresh air intake hole (Fig. 3-4)
*158
120
120
100
90
130
100
100
90
*167
70°
*155
At the time of installation, use the duct holes (cut out) located at the positions
shown in Fig3-4, as and when required.
• A fresh air intake hole for the optional multi function casement can also be made.
Note:
The figure marked with * in the drawing represent the dimensions of the main
unit excluding those of the optional multi function casement.
When installing the optional multi function casement, add 135 mm to the dimensions marked on the figure.
When installing the branch ducts, be sure to insulate adequately. Otherwise
condensation and dripping may occur.
Branch duct hole
Indoor unit
Fresh air intake hole
Drain pipe
Refrigerant pipe
Branch duct hole diagram
(view from either side)
14-ø2.8 burring hole
ø150 cut out hole
ø175 burring hole pitch
Fresh air intake hole diagram
3-ø2.8 burring hole
ø125 burring hole pitch
ø100 cut out hole
Ceiling
350
3.5. Suspension structure (Give site of suspension
strong structure) (Fig. 3-5)
Fig. 3-4
Unit
Grille
Pillar
605
0
81
Ceiling
Rafter
Beam
Roof beam
Use inserts rated at 100-150 kg
each (procure locally)
Suspension bolts M10 (3/8") (procure
locally)
Steel reinforcing rod
Fig. 3-5
• The ceiling work differs according to the construction of the building. Building
constructors and interior decorators should be consulted for details.
(1) Extent of ceiling removal: The ceiling must be kept completely horizontal and
the ceiling foundation (framework: wooden slats and slat holders) must be reinforced in order to protect the ceiling from vibration.
(2) Cut and remove the ceiling foundation.
(3) Reinforce the ends of the ceiling foundation where it has been cut and add ceiling foundation for securing the ends of the ceiling board.
(4) When installing the indoor unit on a slanted ceiling, attach a pillar between the
ceiling and the grille and set so that the unit is installed horizontally.
Wooden structures
• Use tie beams (single storied houses) or second floor beams (two story houses)
as reinforcing members.
• Wooden beams for suspending air conditioners must be sturdy and their sides
must be at least 6 cm long if the beams are separated by not more than 90 cm
and their sides must be at least 9 cm long if the beams are separated by as much
as 180 cm. The size of the suspension bolts should be ø10 (3/8"). (The bolts do
not come with the unit.)
Ferro-concrete structures
Secure the suspension bolts using the method shown, or use steel or wooden
hangers, etc. to install the suspension bolts.
3.6. Unit suspension procedures (Fig. 3-6)
17
+5
0
A=17 +50
105 (240)
Min. 30
Suspension bolt
Ceiling
Nut
Washer (with insulation)
Mounting plate
Washer (without insulation)
Check using the Installation gauge
Main unit
Ceiling
Gauge
Ceiling opening dimensions
Fig. 3-6
Fig. 3-7
Main unit
Ceiling
Installation template (top of the
package)
Screw with washer (Accessory)
Fig. 3-8
Suspend the main unit as shown in the diagram.
Figures given in parentheses represent the dimensions in case of installing optional
multi function casement.
1. In advance, set the parts onto the suspension bolts in the order of the washers
(with insulation), washers (without insulation) and nuts (double).
• Fit the washer with cushion so that the insulation faces downward.
• In case of using upper washers to suspend the main unit, the lower washers (with
insulation) and nuts (double) are to be set later.
2. Lift the unit to the proper height of the suspension bolts to insert the mounting
plate between washers and then fasten it securely.
3. When the main unit can not be aligned against the mounting hole on the ceiling,
it is adjustable owing to a slot provided on the mounting plate.
• Make sure that A is performed within 17-22 mm. Damage could result by failing
to adhere to this range. (Fig. 3-7)
Caution:
Use the top half of the box as a protective cover to prevent dust or debris
from getting inside the unit prior to installation of the decorative cover or
when applying ceiling materials.
3.7. Confirming the position of main unit and
tightening the suspension bolts (Fig. 3-8)
• Using the gauge attached to the grille, ensure that the bottom of the main unit is
properly aligned with the opening of the ceiling. Be sure to confirm this, otherwise
condensation may form and drip due to air leakage, etc.
• Confirm that the main unit is horizontally levelled, using a level or a vinyl tube
filled with water.
• After checking the position of the main unit, tighten the nuts of the suspension
bolts securely to fasten the main unit.
• The installation template (top of the package) can be used as a protective sheet to
prevent dust from entering the main unit when the grilles are left unattached for a
while or when the ceiling materials are to be lined after installation of the unit is finished.
* As for the details of fitting, refer to the instructions given on the Installation template.
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4. Installing the refrigerant piping
4.1. Precautions
For devices that use R410A refrigerant
• Use ester oil, ether oil or alkylbenzene oil (small amount) as the refrigeration oil applied to the flared sections.
• Use C1220 copper phosphorus for copper and copper alloy seamless pipes,
to connect the refrigerant pipes. Use refrigerant pipes with the thicknesses
specified in the table below. Make sure the insides of the pipes are clean
and do not contain any harmful contaminants such as sulfuric compounds,
oxidants, debris, or dust.
Warning:
When installing or moving the air conditioner, use only the specified refrigerant (R410A) to charge the refrigerant lines. Do not mix it with any other refrigerant and do not allow air to remain in the lines. Air enclosed in the lines can
cause pressure peaks resulting in a rupture and other hazards.
Liquid pipe
Gas pipe
4.2. Connecting pipes (Fig. 4-1)
A
0.5
RP60-140
ø9.52 thickness 0.8 mm
ø15.88 thickness 1.0 mm
• Do not use pipes thinner than those specified above.
45 2
.8
R0
.4~
R0
90
RP35, 50
ø6.35 thickness 0.8 mm
ø12.7 thickness 0.8 mm
Fig. 4-1
• When commercially available copper pipes are used, wrap liquid and gas pipes
with commercially available insulation materials (heat-resistant to 100 °C or more,
thickness of 12 mm or more).
• The indoor parts of the drain pipe should be wrapped with polyethylene foam insulation materials (specific gravity of 0.03, thickness of 9 mm or more).
• Apply thin layer of refrigerant oil to pipe and joint seating surface before tightening flare nut.
• Use two wrenches to tighten piping connections.
• Use refrigerant piping insulation provided to insulate indoor unit connections. Insulate carefully.
Flare cutting dimensions
Copper pipe O.D.
(mm)
6.35
9.52
12.7
15.88
19.05
Flare dimensions
A dimensions (mm)
8.7 - 9.1
12.8 - 13.2
16.2 - 16.6
19.3 - 19.7
23.6 - 24.0
B
Die
Copper pipe
Flare nut tightening torque
Copper pipe O.D.
(mm)
ø6.35
ø6.35
ø9.52
ø12.7
ø12.7
ø15.88
ø15.88
ø19.05
Flare nut O.D.
(mm)
17
22
22
26
29
29
36
36
Tightening torque
(mm)
14-18
34-42
34-42
49-61
68-82
68-82
100-120
100-120
Apply refrigerating machine oil over the entire flare seat surface.
Use correct flare nuts meeting the pipe size of the outdoor unit.
Available pipe size
Fig. 4-2
Copper pipe O.D.
(mm)
6.35 (1/4")
9.52 (3/8")
12.7 (1/2")
15.88 (5/8")
19.05 (3/4")
B (mm)
Flare tool for R410A
Clutch type
1.0 - 1.5
1.0 - 1.5
1.0 - 1.5
1.0 - 1.5
1.0 - 1.5
Liquid side
Gas side
RP35, 50
ø6.35
—
ø12.7
RP60
ø6.35
ø9.52
ø15.88
RP71-140
—
ø9.52
ø15.88
: Factory flare nut attachment to the heat exchanger.
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4. Installing the refrigerant piping
4.3. Indoor unit (Fig. 4-3)
Refrigerant pipe and
insulating material
Pipe cover (large)
Pipe cover (small)
Refrigerant pipe (gas)
Refrigerant pipe (liquid)
Band
Cross-sectional view of connection
Pipe
Insulating material
Squeeze
Heat insulation for refrigerant pipes:
1 Wrap the enclosed large-sized pipe cover around the gas pipe, making sure that
the end of the pipe cover touches the side of the unit.
2 Wrap the enclosed small-sized pipe cover around the liquid pipe, making sure
that the end of the pipe cover touches the side of the unit.
3 Secure both ends of each pipe cover with the enclosed bands. (Attach the
bands 20 mm from the ends of the pipe cover.)
• After connecting the refrigerant piping to the indoor unit, be sure to test the pipe
connections for gas leakage with nitrogen gas. (Check that there is no refrigerant
leakage from the refrigerant piping to the indoor unit.)
4.4. For twin/triple combination
Refer to the outdoor unit installation manual.
,
Fig. 4-3
5. Drainage piping work
5.1. Drainage piping work (Fig. 5-1)
Max. 20m
1.5-2m
Max. 15cm
• Use VP25 (O.D. ø32 PVC TUBE) for drain piping and provide 1/100 or more
downward slope.
• Be sure to connect the piping joints using a polyvinyl type adhesive.
• Observe the figure for piping work.
• Use the included drain hose to change the extraction direction.
Correct piping
Support metal
Wrong piping
Air bleeder
Insulation (9 mm or more)
Raised
Downward slope (1/100 or more)
Odor trap
Grouped piping
O.D. ø32 PVC TUBE
Downward slope (1/100 or more)
Make it as large as possible
O.D. ø38 PVC TUBE for grouped piping.
(9 mm or more insulation)
Indoor unit
Make the piping size large for grouped
piping.
Up to 85 cm
Fig. 5-1
(mm)
11
25
25
25
1.Connect the drain socket (supplied with the unit) to the drain port. (Fig. 5-2)
(Fix the tube using PVC adhesive then secure it with a band.)
2.Install a locally purchased drain pipe (PVC pipe, O.D. ø32).
(Fix the pipe using PVC adhesive then secure it with a band.)
3.Insulate the tube and pipe. (PVC pipe, O.D. ø32 and socket)
4.Check that drain flows smoothly.
5.Insulate the drain port with insulating material, then secure the material with a
band. (Both insulating material and band are supplied with the unit.)
Unit
Fig. 5-2
Drain pipe (O.D. ø32 PVC TUBE)
Insulating material
Insulating material (purchased locally)
Band
Transparent PVC pipe
Drain port (transparent)
O.D. ø32 PVC TUBE (Slope 1/100 or more)
Insertion margin
Drain socket
Matching
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6. Electrical work
6.1. Indoor unit (Fig. 6-1)
1. Remove the electrical wiring service panel.
2. Remove the electrical box cover.
3. Wire the power cable and control cable separately through the respective wiring
entries given in the diagram.
• Do not allow slackening of the terminal screws.
• Leave excess cable so that the electrical box cover can be suspended below the
unit during servicing. (Approx. 50 to 100 mm)
Entry for control cable
Entry for power
Clamp
Electrical box cover
Service panel for electrical wiring
Temporary hook for electrical box cover
Indoor / Outdoor unit connecting terminals
Remote controller connector
Secure with the clamp
Earth terminal
Fig. 6-1
6.1.1. Indoor unit power supplied from outdoor unit
The following connection patterns are available.
The outdoor unit power supply patterns vary on models.1 System
1:1 System
D
A
B
C
G
A
B
C
D
E
F
G
L
N
S1
S1
S2
S2
S3
S3
E
1
2
F
Outdoor unit power supply
Earth leakage breaker
Wiring circuit breaker or isolating switch
Outdoor unit
Indoor unit/outdoor unit connecting cords
Remote controller
Indoor unit
* Affix label A that is included with the manuals near each wiring diagram for the indoor and outdoor units.
Simultaneous twin/triple/four system
G
G
G
G
S1
S1
S1
S1
S1
S2
S2
S2
S2
S2
S3
S3
S3
S3
S3
1
2
1
2
1
2
1
2
D
A
B
C
L
N
E
F
A
B
C
D
E
F
G
Outdoor unit power supply
Earth leakage breaker
Wiring circuit breaker or isolating switch
Outdoor unit
Indoor unit/outdoor unit connecting cords
Remote controller
Indoor unit
* Affix label A that is included with the manuals near each wiring diagram for the indoor and outdoor units.
Circuit
rating
Wiring
Wire No. × size
(mm2)
Indoor unit model
Indoor unit-Outdoor unit
*1
PLA
3× 1.5 (polar)
Indoor unit-Outdoor unit earth
*1
1 × Min.1.5
Remote controller-Indoor unit
*2
2 × 0.3 (Non-polar)
Indoor unit (Heater) L-N
*3
-
Indoor unit-Outdoor unit S1-S2
*3
AC 230 V
Indoor unit-Outdoor unit S2-S3
*3
DC24 V
Remote controller-Indoor unit
*3
DC12 V
*1. <For 35-140 outdoor unit application>
Max. 45 m
If 2.5 mm2 used, Max. 50 m
If 2.5 mm2 used and S3 separated, Max. 80 m
<For 200/250 outdoor unit application>
Max. 18 m
If 2.5 mm2 used, Max. 30 m
If 4 mm2 used and S3 separated, Max. 50 m
If 6 mm2 used and S3 separated, Max. 80 m
*2. The 10 m wire is attached in the remote controller accessory. Max. 500 m
*3. The figures are NOT always against the ground.
S3 terminal has DC 24 V against S2 terminal. However between S3 and S1, these terminals are not electrically insulated by the transformer or other device.
Notes: 1. Wiring size must comply with the applicable local and national code.
2. Power supply cords and indoor unit/outdoor unit connecting cords shall not be lighter than polychloroprene sheathed flexible cord.
(Design 60245 IEC 57)
3. Install an earth longer than other cables.
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6. Electrical work
6.1.2. Separate indoor unit/outdoor unit power supplies (For PUHZ application only)
The following connection patterns are available.
The outdoor unit power supply patterns vary on models.
1:1
1:1 System
System
* The indoor power supply terminal kit is required.
A
B
C
A
B
C
D
E
F
G
H
J
G
D
L
N
J
S1
S2
S3
B
L
N
C
H
S1
S2
S3
E
1
2
F
Outdoor unit power supply
Earth leakage breaker
Wiring circuit breaker or isolating switch
Outdoor unit
Indoor unit/outdoor unit connecting cords
Remote controller
Indoor unit
Option
Indoor unit power supply
* Affix label B that is included with the manuals near each wiring diagram for the indoor and outdoor units.
Simultaneous twin/triple/four system
A
B
C
D
E
F
G
H
J
* The indoor power supply terminal kits are required.
A
B
C
D
G
G
G
G
L
N
L
N
L
N
L
N
L
N
S1
S2
S3
S1
S2
S3
S1
S2
S3
S1
S2
S3
1
2
1
2
1
2
1
2
J
B
C
S1
S2
S3
E
F
H
Outdoor unit power supply
Earth leakage breaker
Wiring circuit breaker or isolating switch
Outdoor unit
Indoor unit/outdoor unit connecting cords
Remote controller
Indoor unit
Option
Indoor unit power supply
* Affix label B that is included with the manuals near each wiring diagram for the indoor and outdoor units.
If the indoor and outdoor units have separate power supplies, refer to the table
below. If the indoor power supply terminal kit is used, change the indoor unit electrical box wiring refering to the figure in the right and the DIP switch settings of the
outdoor unit control board.
Option
L
N
S1
S2
S3
3
1
2
BLACK
CN01
Indoor unit
control board
Indoor unit power supplied from outdoor unit
(initial setting)
(SW8)
If the indoor and
outdoor units have
separate power
supplies, change the
connections of the
connectors as shown
in the following figure.
Option
Connectors
L
N
* There are three types of labels (labels A, B and C). Affix the appropriate labels to
the units according to the wiring method.
S1
S2
S3
CN01
Set the SW8-3 to ON.
BLUE YELLOW
YELLOW BLUE
ON
OFF
CN01
Required
BLUE YELLOW
BLUE YELLOW
Indoor power supply terminal kit (option)
Indoor unit electrical box connector
connection change
Label affixed near each wiring diagram
for the indoor and outdoor units
Outdoor unit DIP switch settings (when
using separate indoor unit/outdoor unit
power supplies only)
Indoor unit specifications
Required
Required
Connectors (connections of initial setting
are for indoor unit power supplied from
outdoor unit)
BLACK
CN01
Indoor unit
control board
Separate indoor unit/outdoor unit power supplies
Circuit
rating
Wiring
Wire No. × size
(mm2)
Indoor unit model
Indoor unit power supply
Indoor unit input capacity
Main switch (Breaker)
Indoor unit power supply
Indoor unit power supply earth
Indoor unit-Outdoor unit
Indoor unit-Outdoor unit earth
Remote controller-Indoor unit
Indoor unit L-N
Indoor unit-Outdoor unit S1-S2
Indoor unit-Outdoor unit S2-S3
Remote controller-Indoor unit
*1
*2
*3
*4
*4
*4
*4
PLA
~/N (single), 50 Hz, 230 V
16 A
2 × Min. 1.5
1 × Min. 1.5
2 × Min. 0.3
–
2 × 0.3 (Non-polar)
AC 230 V
–
DC24 V
DC12 V
*1. A breaker with at least 3.0 mm contact separation in each pole shall be provided. Use non-fuse breaker (NF) or earth leakage breaker (NV).
The breaker shall be provided to ensure disconnection of all active phase conductors of the supply.
*2. Max. 120 m
*3. The 10 m wire is attached in the remote controller accessory. Max. 500 m
*4. The figures are NOT always against the ground.
Notes: 1. Wiring size must comply with the applicable local and national code.
2. Power supply cords and indoor unit/outdoor unit connecting cords shall not be lighter than polychloroprene sheathed flexible cord.
(Design 60245 IEC 57)
3. Install an earth longer than other cables.
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6. Electrical work
6.2. Remote controller
6.2.1. For wired remote controller
30
1) Installing procedures
(1) Select an installing position for the remote controller. (Fig. 6-2)
The temperature sensors are located on both remote controller and indoor unit.
Procure the following parts locally:
Two piece switch box
Thin copper conduit tube
Lock nuts and bushings
[Fig.6-2]
30
30
83.5
46
Remote controller profile
120
Required clearances surrounding the remote controller
Installation pitch
(2) Seal the service entrance for the remote controller cord with putty to prevent
possible invasion of dew drops, water, cockroaches or worms. (Fig. 6-3)
For installation in the switch box
For direct installation on the wall, select one of the following:
• Prepare a hole through the wall to pass the remote controller cord (in order to run
the remote controller cord from the back), then seal the hole with putty.
• Run the remote controller cord through the cut-out upper case, then seal the cutout notch with putty.
B-1. To lead the remote controller cord from the back of the controller
B-2. To run the remote controller cord through the upper portion
[Fig.6-3]
Fig. 6-2
B-1.
B-2.
Wall
Conduit
Lock nut
Bushing
Fig. 6-3
Switch box
Remote controller cord
Seal with putty
Wood screw
2) Connecting procedures (Fig. 6-4)
Connect the remote controller cord to the terminal block.
To TB5 on the indoor unit
TB6 (No polarity)
AB
3) Two remote controllers setting
If two remote controllers are connected, set one to “Main” and the other to “Sub”.
For setting procedures, refer to “Function selection of remote controller” in the operation manual for the indoor unit.
TB6
Fig. 6-4
6.2.2. For wireless remote controller
1) Installation area
• Area in which the remote controller is not exposed to direct sunshine.
• Area in which there is no nearby heating source.
• Area in which the remote controller is not exposed to cold (or hot) winds.
• Area in which the remote controller can be operated easily.
• Area in which the remote controller is beyond the reach of children.
2) Installation method (Fig. 6-5)
Attach the remote controller holder to the desired location using two tapping screws.
Place the lower end of the controller into the holder.
MODEL SELECT
ON/OFF
MODE
TEMP
FAN
AUTO STOP
VANE
AUTO START
CHECK LOUVER
SET
Fig. 6-5
h
min
TEST RUN
RESET
CLOCK
Fig. 6-6
Remote controller
Indoor
PLA
MODEL SELECT
ON/OFF
MODE
TEMP
FAN
AUTO STOP
VANE
AUTO START
CHECK LOUVER
SET
h
min
TEST RUN
RESET
CLOCK
Wall
Display panel
Receiver
• The signal can travel up to approximately 7 meters (in a straight line) within 45
degrees to both right and left of the center line of the receiver.
3) Setting (Fig. 6-6)
Insert batteries.
Press the SET button with something sharp at the end.
MODEL SELECT blinks and Model No. is lighted.
Press the temp
buttons to set the Model No.
button and operate again
If you mistook the operation, press the ON/OFF
from procedure .
Press the SET button with something sharp at the end.
MODEL SELECT and Model No. are lighted for three seconds, then turned off.
Outdoor
PUH, PUHZ, SUZ
PU
Model No.
001
033
4)Automatic fan speed setting (For wireless remote controller)
It is necessary to set for wireless remote controller only when automatic fan
speed is not set at default setting.
It is not necessary to set for wired remote controller with automatic fan speed at
default setting.
1. Press the SET button with something sharp at the end.
Operate when display of remote controller is off.
MODEL SELECT blinks and Model No. is lighted .
2. Press the AUTO STOP
button.
blinks and setting No. is lighted .
(Setting No.01: without automatic fan speed )
buttons to set the setting No.02.
3. Press the temp.
(Setting No.02:with automatic fan speed )
If you mistook the operation, press the ON/OFF
button and operate again
from procedure 2.
4. Press the SET button with something sharp at the end.
MODEL SELECT and Model No. are lighted for 3 seconds, then turned off.
Fig. 6-7
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6. Electrical work
5) Assigning a remote controller to each unit (Fig. 6-8)
Each unit can be operated only by the assigned remote controller.
Make sure each pair of an indoor unit PC board and a remote controller is assigned
to the same pair No.
6) Wireless remote controller pair number setting operation
Press the SET button with something sharp at the end.
Start this operation from the status of remote controller display turned off.
MODEL SELECT blinks and Model No. is lighted.
min
button twice continuously.
Press the
Pair No. “0” blinks.
Press the temp
buttons to set the pair number you want to set.
button and operate again
If you mistook the operation, press the ON/OFF
from procedure 2.
Press the SET button with something sharp at the end.
Set pair number is lighted for three seconds then turned off.
MODEL SELECT
ON/OFF
MODE
TEMP
FAN
AUTO STOP
VANE
AUTO START
CHECK LOUVER
TEST RUN
SET
h
min
RESET
CLOCK
Fig. 6-8
A Pair No. of wireless remote controller
Indoor PC board
0
Factory setting
1
Cut J41
2
Cut J42
3-9
Cut J41, J42
6.3. Function settings
Mode number
Setting number
Refrigerant address
Unit number
TEMP.
MENU
BACK
MONITOR/SET
PAR-21MAA
ON/OFF
ON/OFF
FILTER
DAY
CLOCK
CHECK TEST
OPERATION
CLEAR
Fig. 6-9
CHECK
CHECK
CHECK
CHECK
CHECK
ON/OFF
MODE
TEMP
FAN
AUTO STOP
VANE
AUTO START
CHECK LOUVER
TEST RUN
SET
h
min
RESET
CLOCK
Fig. 6-10
6.3.1. Function setting on the unit (Selecting the unit functions)
1) For wired remote controller (Fig. 6-9)
Changing the power voltage setting
• Be sure to change the power voltage setting depending on the voltage used.
Go to the function setting mode.
Switch OFF the remote controller.
and TEST RUN
buttons simultaneously and
Press the FILTER
hold them for at least 2 seconds. FUNCTION will start to blink.
Use the buttons to set the refrigerant address (3) to 00.
Press button and [--] will start to blink in the unit number (4) display.
Use the buttons to set the unit number (4) to 00.
Press the MODE button to designate the refrigerant address/unit number. [--]
will blink in the mode number (1) display momentarily.
Press the
buttons to set the mode number (1) to 04.
Press the button and the current set setting number (2) will blink.
Use the
button to switch the setting number in response to the power supply
voltage to be used.
Power supply voltage
240 V
: setting number = 1
220 V, 230 V : setting number = 2
Press the MODE button
and mode and the setting number (1) and (2) will
change to being on constantly and the contents of the setting can be confirmed.
Press the FILTER
and TEST RUN
buttons simultaneously for at least two
seconds. The function selection screen will disappear momentarily and the air
conditioner OFF display will appear.
2) For wireless remote controller (Fig. 6-10)
Changing the power voltage setting
• Be sure to change the power voltage setting depending on the voltage used.
Going to the function select mode
CHECK
button twice continuously.
Press the
(Start this operation from the status of remote controller display turned off.)
CHECK is lighted and “00” blinks.
Press the
temp button
once to set “50”. Direct the
wireless remote controller
h
button .
toward the receiver of the indoor unit and press the
Setting the unit number
Press the
temp buttons and to set the unit number “00”. Direct the wiremin
butless remote controller toward the receiver of the indoor unit and press the
ton .
Selecting a mode
Enter 04 to change the power voltage setting using the
temp buttons
and
. Direct the wireless remote controller toward the receiver of the indoor unit and
h
button .
press the
Current setting number:
1 = 1 beep (one second)
2 = 2 beeps (one second each)
3 = 3 beeps (one second each)
Selecting the setting number
temp buttons and to change the power voltage setting to 01 (240
Use the
V). Direct the wireless remote controller toward the sensor of the indoor unit and
h
button .
press the
To select multiple functions continuously
and
to change multiple function settings continuously.
Repeat steps
Complete function selection
Direct the wireless remote controller toward the sensor of the indoor unit and press
button .
the
Note: Whenever changes are made to the function settings after installation
or maintenance, be sure to record the changes with a mark in the “Setting”
column of the Function table.
6.3.2. Function setting on the remote controller
Refer to the indoor unit operation manual.
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6. Electrical work
Function table
Select unit number 00
Mode
Power failure automatic recovery
Settings
Not available
Available
*1
Indoor unit operating average
Set by indoor unit’s remote controller
Remote controller’s internal sensor
Not Supported
Supported (indoor unit is not equipped with outdoor-air intake)
Supported (indoor unit is equipped with outdoor-air intake)
240 V
220 V, 230 V
Indoor temperature detecting
LOSSNAY connectivity
Power voltage
Mode no.
01
02
03
04
Setting no. Initial setting
1
2
1
2
3
1
2
3
1
2
setting
Select unit numbers 01 to 03 or all units (AL [wired remote controller]/07 [wireless remote controller])
Settings
100Hr
2500Hr
No filter sign indicator
Silent
Standard
High ceiling
4 directions
3 directions
2 directions
Not supported
Supported
Equipped with vanes (vanes angle setup 3)
Equipped with vanes (vanes angle setup 1)
Equipped with vanes (vanes angle setup 2)
Mode
Filter sign
Fan speed
No. of air outlets
Installed options (high-performance filter)
Up/down vane setting
Mode no.
07
08
09
10
11
Setting no. Initial setting
1
2
3
1
2
3
1
2
3
1
2
1
2
3
setting
*1 When the power supply returns, the air conditioner will start 3 minutes later.
*2 Power failure automatic recovery initial setting depends on the connecting outdoor unit.
6.3.3 How to set the fixed up/down air direction (Only for wired remote
controller and PUHZ-RP/P, PU(H)-P application)
Horizontal airflow
• Only the particular outlet can be fixed to certain direction with the
procedures below. Once fixed, only the set outlet is fixed every time air
conditioner is turned on. (Other outlets follow UP/DOWN air direction
setting of the remote controller.)
Explanation of word
• "Refrigerant address No." and "Unit No." are the numbers given to
each air conditioner.
• "Outlet No." is the number given to each outlet of air conditioner.
(Refer to the right.)
• "Up/Down air direction" is the direction (angle) to fix.
Downward
Remote controller setting
Fixed setting
The airflow direction of
this outlet is controlled by
the airflow direction setting of
remote contoller.
The airflow direction of
this outlet is fixed
in particular direction.
When it is cold because of direct airflow,
the airflow direction can be fixed
horizontally to avoid direct airflow.
Outlet No.3
Outlet No.4
MITSUBISHI
ELECTRIC
label
Reset
1
horizontal
2
3
4
5
Outlet No.2
Outlet No.1
Note: "0" indicates all outlets.
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6. Electrical work
Operation buttons (During the fixed airflow direction mode)
Press the button with either refrigerant
address No., unit No. or outlet No. blinking, ...
ON/OFF button
Resets the fixed airflow direction mode.
Fan Speed button
TEMP.
MENU
BACK
MONITOR/SET
PAR-21MAA
ON/OFF
ON/OFF
Filter
button
(<Enter> button)
FILTER
DAY
CHECK TEST
OPERATION
CLOCK
Press for 2
seconds to
change / cancel
"Fixed airflow
direction mode".
Only the air conditioner with the No. on remote
controller and its outlet are set to the setting 5 of
the airflow direction. (Other outlets are closed.)
It is used to identify the air conditioner and
outlet to set.
Sends the information on
remote controller display.
CLEAR
Press the button with
Up/Down air direction indicater blinking, ...
Check button (Clear button)
·Refer to the next page for details.
Attention
Mode button (Return button)
Moves between the selected(blinking)
parts.
Unit No.
Outlet No.
Refrigerant addres No.
Up/Down air direction
Set temperature buttons
Down
Only the air conditioner with the No. on Remote controller
and its outlet are fixed at "Up/Down air direction"
which is blinking.
This is used only to decide direction conclusively.
Attention: Be careful not to set wrong air conditioner.
Up
Changes the selection(No.).
Unit No.
"1-4" Outlet No. Up/Down air direction Refrigerant address No.
"00-15"
5 steps or
"1-4"or "0"
cancel
2.Press Filter
< Process for setting >
[1] To turn off air conditioner and change the remote
controller to "Fixed airflow direction mode"
1.Press ON/OFF button to turn off the air conditioner.
2.Press Fan Speed button and Filter
button for more than 2
seconds simultaneously and it becomes the fixed airflow direction
mode after a while.
"Fixed airflow direction mode" display
button to send the information on remote controller.
3. Wait for 15 seconds . How does the air conditioner run?
Only the air from the selected outlet blows downward.
Go to step[3].
Air from the wrong outlet blows downward.
Repeat 1 and set again.
All outlets are closed.
The numbers of the air conditioner (refrigerant address No.,
Unit No.) are wrong. Refer to How to find air conditioner No..
[3] To fix air direction
Air blows downward after it becomes
"fixed airflow direction mode"
[2] To select and identify the outlet to set
1.Press Set Temperature button to change number with the outlet No.
blinking. Select outlet No. to set.
Unit No.
Outlet No.
Outlet No.3
Up/Down air direction Refrigerant addres No.
Outlet No.4
MITSUBISHI
ELECTRIC
label
Outlet No.2
1.Press Mode button (Return button) to blink Up/Down air direction
indicater.
2.Press Set Temperature button until the direction to set is chosen.
3.Press Filter
button to send the information on remote controller to
air conditioner.
4.Wait for 15 seconds . How does the air conditioner run?
Airflow direction is set in the selected direction.
The fixed setting completed (Go to step [4].)
Airflow direction is set in the wrong direction.
Repeat 2. and set again.
Outlet No.1
Note: "0" indicates
all outlets.
Unit No.
Outlet No.
Up/Down air direction Refrigerant addres No.
Air direction changes
This indicates NO FIXED SETTING(canceled)
[4] To cancel "Fixed airflow direction mode"
1.Press ON/OFF button to cancel "Fixed airflow direction mode".
It is also canceled by pressing Fan Speed button and Filter
button
for more than 2 seconds simultaneously.
2.Do not operate remote controller for 30 seconds after the "Fixed airflow
direction mode" is canceled. It does not accept even if it is operated.
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6. Electrical work
How to find air conditioner No.
Each air conditioner has its own refrigerant address No. and unit No.
(Example below).
To find air conditioner No. to set, refer to the procedures below.
Air conditioner No. is found by its airflow direction with the unit No.
changed one after the other.
Flow of procedure
Refrigerant
address
No."00"
Unit No."1"
Refrigerant
address
No."01"
Unit No."2"
Unit No."1"
Unit No."2"
Adjust to the next unit No.with Set Temperature button
.
(refrigerant address No.00 is remained.)
button to send the information on remote controller.
2. Press Filter
3. Wait for 15 seconds . How does the air conditioner run?
Only air from the outlet which No. displayed on remote controller blows
downward.
No. displayed on remote controller is air conditioner No.. (Checking
completed)
All outlets are closed.
Repeat [1] and check. (If all the numbers are checked up to No.4
and is not found, go to [3].)
"Err" is displayed on remote controller.
The refrigerant address does not have further unit No.. (Go to [3].)
Remote controller
As for this air conditioner,
air conditioner No. is "unit No. 1" of
refrigerant address "0".
Err
Check from refrigerant address 00 at first.
Change to unit No.1 and check
Change to unit No.1 and check
Change to unit No.2 and check
Change to unit No.2 and check
Change to unit No.3 and check
Change to unit No.3 and check
Change to unit No.4 and check
Change to unit No.4 and check
Change to unit No.1 and check
Change to unit No.1 and check
Change to unit No.2 and check
Change to unit No.2 and check
Change to unit No.3 and check
Change to unit No.3 and check
Change to unit No.4 and check
Change to unit No.4 and check
[3] To check Unit No. of following refrigerant address No.(Maxmum
refrigerant address No. is 15)
1.Press Mode button (Return button) to blink refrigerant address No..
Adjust refrigerant No. with Set Temperature button .
* By changing refrigerant address, unit No. and outlet No. turn to initial
display.
2.Go back to [2] and check Unit No. again from Unit No. 1 in order.
Unit No.
Outlet No.
Up/Down air direction
Refrigerant addres No.
When "Err" is displayed, refrigerant address
does not have further "unit No.".
Change to the next "refrigerant address No..
(Refrigerant No "00"~max. No."15")
<Process to find air conditioner No.>
To clear fixed setting
To clear all fixed setting(reset to factory default), press check button(clear
botton) for more than 3 seconds in fixed airflow direction mode.
Display of remote controller blinks and the set information is cleared.
Note: This operation clears the fixed setting information of all air
conditioner connected to the remote controller.
[1] To check refrigerant address No. and unit No.
1.Press Mode button (Return button) and unit No. or refrigerant
address No. blinks.
Adjust refrigerant address No.to "00" and unit No."1" with Set
Temperature button .
Unit No.
Outlet No. Up/Down air direction
Refrigerant addres No.
2.Press Filter
button to send the information on remote controller.
3. Wait for 15 seconds. How does the air conditioner run?
Only air from the outlet of which No. displayed on remote controller
blows downward.
Refrigerant address No.00 and unit No.1 are the air conditioner No..
All outlets are closed.
Go to step [2].
[2] To check by changing unit No. one after the other
(Maximum unit No. is 4)
1.Press Mode button (Return button) and unit No. blinks.
Unit No.
Outlet No.
Up/Down air direction
Refrigerant addres No.
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7. Test run
7.1. Before test run
After completing installation and the wiring and piping of the indoor and
outdoor units, check for refrigerant leakage, looseness in the power supply or
control wiring, wrong polarity, and no disconnection of one phase in the supply.
Use a 500-volt megohmmeter to check that the resistance between the
power supply terminals and ground is at least 1.0 M .
Do not carry out this test on the control wiring (low voltage circuit) terminals.
Warning:
Do not use the air conditioner if the insulation resistance is less than 1.0 M .
7.2. Test run
ON/OFF button
Test run display
Liquid pipe (Indoor unit)
temperature display
ON/OFF lamp
Power display
Error code display
Test run remaining time display
TEST RUN
COOL, HEAT
°C
°C
SIMPLE
TEMP.
MENU
BACK
ON/OFF
MONITOR/SET
PAR-21MAA
ON/OFF
Set temperature button
Mode selection button
Air direction button
TEST button
Fan Speed button
Louver button
FILTER
DAY
CHECK TEST
OPERATION
CLOCK
CLEAR
Fig. 7-1
The following 3 methods are available.
7.2.1. Using wired remote controller (Fig. 7-1)
Turn on the power at least 12 hours before the test run.
Press the [TEST] button twice.
“TEST RUN” liquid crystal display
Press the [Mode selection] button and switch to the cooling (or heating) mode.
Make sure that cold (or warm) wind is blown out.
Press the [Fan speed] button.
Make sure that the wind speed is switched.
Press the [Air direction button] or [Louver button].
Check operation of the vane or louver.
Check operation of the outdoor unit fan.
Release test run by pressing the [ON/OFF] button.
Stop
Register a telephone number.
The telephone number of the repair shop, sales office, etc., to contact if an error
occurs can be registered in the remote controller. The telephone number will be
displayed when an error occurs. For registration procedures, refer to the operation manual for the indoor unit.
7.2.2. Using wireless remote controller (Fig. 7-2)
Turn on the power to the unit at least 12 hours before the test run.
TEST RUN
Press the
button twice continuously.
(Start this operation from the status of remote controller display turned off.)
TEST RUN and current operation mode are displayed.
TEST RUN
Press the
MODE
button to activate
mode, then check whether
cool air is blown out from the unit.
Press the
ON/OFF
TEMP
,
FAN
VANE
AUTO STOP
Press the
VANE
AUTO START
Press the ON/OFF button to stop the test run.
TEST RUN
button and check whether the auto vane operates properly.
h
Note:
• Point the remote controller towards the indoor unit receiver while following
steps to .
• It is not possible to run the TEST RUN in FAN, DRY or AUTO mode.
min
RESET
mode, then check whether
button and check whether fan speed changes.
FAN
CHECK LOUVER
SET
button to activate
warm air is blown out from the unit.
Press the
MODE
MODE
CLOCK
Fig. 7-2
7.2.3. Using SW4 in outdoor unit
Refer to the outdoor unit installation manual.
7.3. Self-check
7.3.1. Wired remote controller (Fig. 7-3)
Turn on the power.
Press the [CHECK] button twice.
Set refrigerant address with [TEMP] button if system control is used.
Press the [ON/OFF] button to stop the self-check.
CHECK
ERROR CODE
TEMP.
MENU
BACK
PAR-21MAA
MONITOR/SET
ON/OFF
ON/OFF
DAY
CLOCK
ON/OFF
TEMP
CHECK button
FILTER
CHECK TEST
OPERATION
CLEAR
MODE
FAN
AUTO STOP
VANE
AUTO START
Refrigerant address
TEMP. button
IC: Indoor unit
OC: Outdoor unit
Check code
CHECK LOUVER
TEST RUN
ERROR CODE
SET
h
Unit address
min
RESET
CLOCK
7.3.2. Wireless remote controller (Fig. 7-4)
Turn on the power.
CHECK
button twice.
Press the
(Start this operation from the status of remote controller display turned off.)
begins to light.
ERROR CODE
Fig. 7-4
“00” begins to blink.
h
Fig. 7-3
While pointing the remote controller toward the unit’s receiver, press the
button. The check code will be indicated by the number of times that the buzzer
sounds from the receiver section and the number of blinks of the operation lamp.
Press the ON/OFF button to stop the self-check.
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7. Test run
• Refer to the following tables for details on the check codes. (Wireless remote controller)
[Output pattern A]
Beeper sounds
OPERATION
INDICATOR
lamp blinking
pattern
Beep
Beep
Beep
Beep
Beep
Beep
1st
2nd
3rd
nth
1st
Beep
2nd · · · Repeated
Off
On
On
On
Off
On
On
On
0.5 sec. Approx. 2.5 sec. 0.5 sec. 0.5 sec.
Self-check Approx. 2.5 sec. 0.5 sec. 0.5 sec. 0.5 sec.
starts
(Start signal
Number of blinks/beeps in pattern indicates the check
Number of blinks/beeps in pattern indicates
received)
code in the following table (i.e., n=5 for “P5”)
the check code in the following table
[Output pattern B]
Beeper sounds
OPERATION
INDICATOR
lamp blinking
pattern
Beep
Off
Self-check Approx. 2.5 sec.
starts
(Start signal
received)
[Output pattern A]
Beep
Beep
Beep
Beep
1st
2nd
3rd
nth
1st
On
On
On
0.5 sec. 0.5 sec. 0.5 sec.
On
0.5 sec.
Off
Approx. 2.5 sec.
On
Approx. 3 sec.
Number of blinks/beeps in pattern indicates the check
code in the following table (i.e., n=5 for “U2”)
On
0.5 sec.
Beep
2nd · · · Repeated
On
0.5 sec.
Number of blinks/beeps in pattern indicates
the check code in the following table
Errors detected by indoor unit
Wireless remote controller
Beeper sounds/OPERATION
INDICATOR lamp blinks
(Number of times)
1
2
3
4
5
6
7
8
9
10
11
12
No sound
No sound
No sound
[Output pattern B]
On
Approx. 3 sec.
Beep
Wired remote
controller
Symptom
Remark
Check code
P1
P2
P9
E6, E7
P4
P5
PA
P6
EE
P8
E4
—
—
Fb
E0, E3
E1, E2
————
Intake sensor error
Pipe (TH2) sensor error
Pipe (TH5) sensor error
Indoor/outdoor unit communication error
Drain sensor error / Float switch connector open
Drain pump error
Forced compressor error
Freezing/Overheating protection operation
Communication error between indoor and outdoor units
Pipe temperature error
Remote controller signal receiving error
—
—
Indoor unit control system error (memory error, etc.)
Remote controller transmission error
Remote controller control board error
No corresponding
Errors detected by unit other than indoor unit (outdoor unit, etc.)
Wireless remote controller
Beeper sounds/OPERATION
INDICATOR lamp blinks
(Number of times)
1
2
3
4
5
6
7
8
9
10
Wired remote
controller
Symptom
Remark
Indoor/outdoor unit communication error (Transmitting error) (Outdoor unit)
Compressor overcurrent interruption
Open/short of outdoor unit thermistors
Compressor overcurrent interruption (When compressor locked)
Abnormal high discharging temperature/49C worked/insufficient refrigerant
Abnormal high pressure (63H worked)/Overheating protection operation
Abnormal temperature of heat sink
Outdoor unit fan protection stop
Compressor overcurrent interruption/Abnormal of power module
Abnormality of super heat due to low discharge temperature
Abnormality such as overvoltage or voltage shortage and abnormal
synchronous signal to main circuit/Current sensor error
—
—
Other errors (Refer to the technical manual for the outdoor unit.)
For details, check the LED
display of the outdoor controller
board.
Check code
E9
UP
U3, U4
UF
U2
U1, Ud
U5
U8
U6
U7
11
U9, UH
12
13
14
—
—
Others
*1 If the beeper does not sound again after the initial two beeps to confirm the self-check start signal was received and the OPERATION INDICATOR lamp does not come
on, there are no error records.
*2 If the beeper sounds three times continuously “beep, beep, beep (0.4 + 0.4 + 0.4 sec.)” after the initial two beeps to confirm the self-check start signal was received, the
specified refrigerant address is incorrect.
• On wireless remote controller
The continuous buzzer sounds from receiving section of indoor unit.
Blink of operation lamp
• On wired remote controller
Check code displayed in the LCD.
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7. Test run
• If the unit cannot be operated properly after the test run has been performed, refer to the following table to remove the cause.
Symptom
Wired remote controller
For about 2 minutes
after power-on
PLEASE WAIT
PLEASE WAIT
Error code
Display messages do not appear
even when operation switch is
turned ON
(operation lamp does not light up).
LED 1, 2 (PCB in outdoor unit
After LED 1, 2 are lighted, LED 2 is turned
off, then only LED 1 is lighted. (Correct
operation)
Only LED 1 is lighted.
Subsequent to about
2 minutes after poweron
LED 1, 2 blink.
Only LED 1 is lighted.
LED 1 blinks
twice, LED 2 blinks once.
Cause
•For about 2 minutes after power-on, operation of the remote
controller is not possible due to system start-up. (Correct
operation)
•Connector for the outdoor unit’s protection device is not
connected.
Reverse or open phase wiring for the outdoor unit’s power
terminal block (L1, L2, L3)
• Incorrect wiring between indoor and outdoor units (incorrect
polarity of S1, S2, S3)
•Remote controller wire short
On the wireless remote controller with condition above, following phenomena take place.
• No signals from the remote controller are accepted.
• Operation lamp is blinking.
• The buzzer makes a short ping sound.
Note:
Operation is not possible for about 30 seconds after cancellation of function selection. (Correct operation)
For description of each LED (LED1, 2, 3) provided on the indoor controller, refer to the following table.
LED 1 (power for microcomputer)
LED 2 (power for remote controller)
LED 3 (communication between indoor and outdoor units)
Indicates whether control power is supplied. Make sure that this LED is always lit.
Indicates whether power is supplied to the remote controller. This LED lights only in the case of the
indoor unit which is connected to the outdoor unit refrigerant address “0”.
Indicates state of communication between the indoor and outdoor units. Make sure that this LED is
always blinking.
Water supply pump
Water (about 1000cc)
Drain plug
Pour water through outlet
.Be carefule not to spray water
into the drain pump mechanism.
7.4. Check of drainage (Fig. 7-5)
• Ensure that the water is being properly drained out and that no water is leaking
from joints.
When electric work is completed.
. Pour water during cooling operation and check.
When electric work is not completed.
. Pour water during emergency operation and check.
* Drain pump and fan are activated simultaneously when single phase 220-240V is
turned on to S1 and S2 on terminal block after the connecter (SWE) on controller
board in the electrical branch box is set to ON.
Be sure to turn it back to the former state after work.
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8. System control
Refer to the outdoor unit installation manual.
9. Installing the grille
9.1. Checking the contents (Fig. 9-1)
• This kit contains this manual and the following parts.
20
Accessory name
Grille
Screw with captive washer
Gauge
Fastener
Screw
Screw
Wireless remote controller
Wired remote controller
Q’ty
1
4
1
3
4
1
1
1
Remarks
950 × 950 (mm)
M5 × 0.8 × 25
(Divided into four parts)
4×8
4 × 12
for PLP-6BALM
for PLP-6BAMD
9.2. Preparing to attach the grille (Fig. 9-2)
ON/OFF
• With the gauge
supplied with this kit, adjust and check the positioning of the
unit relative to the ceiling. If the unit is not properly positioned relative to the ceiling, it may allow air leaks or cause condensation to collect.
• Make sure that the opening in the ceiling is within the following tolerances:
860 860 - 910 910
• Make sure that A is performed within 17-22 mm. Damage could result by failing to
adhere to this range.
?
Fig. 9-1
A=17 +50
Main unit
Ceiling
Gauge (inserted into the unit)
Ceiling opening dimensions
9.2.1. Removing the intake grille (Fig. 9-3)
• Slide the levers in the direction indicated by the arrows
to open the intake
grille.
• Unlatch the hook that secures the grille.
* Do not unlatch the hook for the intake grille.
• With the intake grille in the “open” position, remove the hinge of the intake grille
from the grille as indicated by the arrows .
Fig. 9-2
9.2.2. Removing the corner panel (Fig. 9-4)
• Remove the screw from the corner of the corner panel. Slide the corner panel as
indicated by the arrow to remove the corner panel.
[Fig.9-3] [Fig.9-4]
Fig. 9-3
Intake grille
Grille
Intake grille levers
Grille hook
Hole for the grille’s hook
Corner panel
Screw
Detail
Fig. 9-4
4-directional
3-directional
One pattern:
Factory setting
4 patterns:
One air outlet fully closed
Blowout
direction
patterns
2-directional
9.3. Selection of the air outlets
For this grille the discharge direction is available in 11 patterns. Also, by setting the
remote controller to the appropriate settings, you can adjust the air-flow and speed.
Select the required settings from the Table 1 according to the location in which you
want to install the unit.
1) Decide on the discharge direction pattern.
2) Be sure to set the remote contoller to the appropriate settings according to the
number of air outlets and the height of the ceiling on which the unit will be installed.
Note:
For 3 and 2-directional, please use the air outlet shutter plate (option).
6 patterns:
Two air outlet fully closed
Blowout
direction
patterns
9.4. Installing the grille
9.4.1. Preparations (Fig. 9-5)
• Install the two enclosed screws with washer
in the main unit (at the corner
drain pipe area and at the opposite corner) as shown in the diagram.
15-20
Table 1
Main unit
Screw with
captive washer
Fig. 9-5
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9. Installing the grille
9.4.2. Temporary installation of the grille (Fig. 9-6)
Main unit
Corner drain pipe area
Screw with washer
(for temporary use)
Grille
Screw with washer
Socket
Bell shaped hole
• Temporarily secure the grille using the bell shaped holes by putting the socket of
on the corner drain pipe area of the main unit.
the grille marked
* Make sure that the lead wiring of the grille does not get pinched between the
grille and the main unit.
9.4.3. Securing the grille (Fig. 9-7)
• Secure the grille to the main unit by tightening the previously installed two screws
(with captive washer) as well as the two remaining screws (with captive washer).
* Make sure that there are no gaps between the main unit and the grille or the
grille and the ceiling.
Fixing gaps between the grille and the ceiling
With the grille attached, adjust the height of the main unit to close the gap.
9.4.4. Wire connection (Fig. 9-8)
Fig. 9-6
• Remove the 2 screws fixing the cover of electrical branch box of the unit and open
the cover.
• Be sure to connect the connector(white, 20-pole) for vane motor of the grille to
CNV connector of contoller board of the unit.
• As for PLP-6BALM, the connector of wireless sensor cable is also connected to
connecor CN90 on indoor controller board.
The lead wire of grille is passed through the catch of bell mouth of the unit perfectly.
The remaining lead wire is tied with clamp of the unit and put the cover of the unit
again with 2 screws.
Ceiling
Note:
Do not put the remaining lead wire in electrical branch box of the unit.
Main unit
Grille
Make sure that there are no gaps
Adjust the nut of the main unit
using a wrench, etc.
Fig. 9-7
Clamp of the main unit
Electrical box
Indoor controler board
Catch for bell mouth
Lead wire of grille
9.5. Locking the up/down airflow direction (Fig. 9-9)
The vanes of the unit can be set and locked in up or down orientations depending
upon the environment of use.
• Set according to the preference of the customer.
The operation of the fixed up/down vanes and all automatic controls cannot be
performed using the remote controller. In addition, the actual position of the vanes
may differ from the position indicated on the remote controller.
Turn off the main power switch.
Injuries or an electrical shock may occur while the fan of the unit is rotating.
Disconnect the connector for the vane motor of the vent that you want to lock.
(While pressing the button, remove the connector in the direction indicated by
the arrow as shown in the diagram.) After removing the connector, insulate it
with tape.
It also can be set by remote controller. Refer to 6.3.3.
9.6. Check
• Make sure that there is no gap between the unit and the grille, or between the
grille and the surface of the ceiling. If there is any gap between the unit and the
grille, or between the grille and the surface of the ceiling, it may cause dew to collect.
• Make sure that the wires have been securely connected.
Fig. 9-8
Button
Vane motor
Up/down vanes
Connector
Fig. 9-9
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9. Installing the grille
9.7. Installing the intake grille (Fig. 9-10 )
Note:
When reinstalling the corner panels (each with a safety wire attached), connect the other end of each safety wire to the grille using a screw (4 pcs,
4 8) as shown in the illustration.
*If the corner panels are not attached, they may fall off while the unit is operating.
• Perform the procedure that is described in “9.2. Preparing to attach the grille” in
reverse order to install the intake grille and the corner panel.
• Multiple units can be installed with grille so that the position of the logo on each
corner panel is consistent with the other units regardless of the orientation of the
intake grille. Align the logo on the panel according to the wishes of the customer
as shown in the diagram to the left. (The position of the grille can be changed.)
Refrigerant piping of the main unit
Drain piping of the main unit
Position of the corner panel when sent from the factory (logo attached).
* Installation in any position is possible.
(Enlarged)
Screw (4‫ޓ‬8)‫ޓ‬
Corner panel
Safety wire
Position of the levers on the intake grille when sent from the factory.
* Although the clips can be installed in any of four positions, the configuration shown here is
recommended.(It is not necessary to remove the intake grille when maintenance is performed
on the electric component box of the main unit.)
Fig. 9-10
Receiver (Only PLP-6BALM Panel)
10. Easy maintenance function (For PUHZ-RP application only)
Display example (Comp discharge temperature 64
By using the maintenance mode, you can display many types of maintenance data
on the remote controller such as the heat exchanger temperature and compressor
current consumption for the indoor and outdoor units.
This function can be used whether the air conditioner is operating or not.
During air conditioner operation, data can be checked during either normal operation or maintenance mode stable operation.
* This function cannot be used during the test run.
* The availability of this function depends on the connecting outdoor unit. Refer to
the brochures.
)
PAR-21MAA
Maintenance mode operation procedures
(1) Press the TEST button for three seconds to
activate the maintenance mode.
(2) Press the TEMP.
MAINTENANCE
Display
buttons to set the refrigerant address.
Display
(3) Select the data you want to display.
Cumulative
operation time
Compressor
information
MENU
Outdoor unit
information
Display
Heat exchanger
temperature
Display
ON/OFF
Indoor unit
information
COMP ON
x10 HOURS
OUTDOOR UNIT
H•EXC. TEMP
Indoor room
temperature
Display
INDOOR UNIT
INLET TEMP
Operation
current
ON/OFF
number
COMP ON
x100 TIMES
COMP ON
CURRENT (A)
Outdoor ambient
temperature
Comp discharge
temperature
OUTDOOR UNIT
OUTLET TEMP
OUTDOOR UNIT
OUTDOOR TEMP
Filter operation
time
Heat exchanger
temperature
INDOOR UNIT
H•EXC. TEMP
INDOOR UNIT
FILTER USE H
* The filter operation time displayed is the number of hours the filter has been
used since the filter reset was performed.
Stable operation
Using the maintenance mode, the operation frequency can be fixed and the operation can be stabilized. If the air conditioner is stopped, use the following procedure to start this operation.
Press the MODE button to select the operation mode.
Stable cooling
operation
(4) Press the FILTER button.
(5) The data is displayed in
Display
.
COOL
STABLE MODE
Stable heating
operation
HEAT
STABLE MODE
Stable operation
cancellation
STABLE MODE
CANCEL
(Airflow temperature display example)
Blinking
Press the FILTER button.
Display
Waiting for
response
Approx.
10 sec.
64
* Repeat steps (2) to (5) to check another data.
Display
(6) Press the TEST button for three seconds or press the
deactivate the maintenance mode.
Stable
operation
Waiting for
stable operation
ON/OFF button to
10-20 min.
* You can check the data using steps (3) to (5) of the maintenance mode operation procedures while waiting for the stable operation.
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RG79D251K01_CS_0228.indd Sec1:38
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RG79D251K01_CS_0228.indd Sec1:39
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This product is designed and intended for use in the residential,
commercial and light-industrial environment.
The product at hand is
based on the following
EU regulations:
•
•
Low Voltage Directive 2006/95/EC
Electromagnetic Compatibility Directive
89/336/ EEC
Please be sure to put the contact address/telephone number on
this manual before handing it to the customer.
HEAD OFFICE: TOKYO BLDG., 2-7-3, MARUNOUCHI, CHIYODA-KU, TOKYO 100-8310, JAPAN
RG79D251K01
RG79D251K01_EN_0227.indd 20
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28/02/2007 09:49:10