Mitsubishi Electric PLFY-P-VAM-E User manual

English
Português
INSTALLATION MANUAL
For safe and correct use, please read this installation manual thoroughly before installing the air-conditioner
unit.
MANUAL DE INSTALAÇÃO
Para segurança e utilização correctas, leia atentamente este manual de instalação antes de instalar a unidade
de ar condicionado.
FOR INSTALLER
PARA O INSTALADOR
Air-Conditioners For Building Application
INDOOR UNIT
PLFY-P·VAM-E
For use with the R410A, R407C & R22
Para utilizar con el R410A, R407C y el R22
Para utilizaçao com o R410A, R407C e o R22
Español
MANUAL DE INSTALACIÓN
Para un uso seguro y correcto, lea detalladamente este manual de instalación antes de montar la unidad de
aire acondicionado.
PARA EL INSTALADOR

2
sBefore installing the unit, make sure you read all the “Safety precau-
tions”.
sPlease 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.
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 Op-
eration Manual and perform the test run to ensure normal operation. Both the Instal-
lation Manual and Operation Manual must be given to the user for keeping. These
manuals must be passed on to subsequent users.
Contents
Warning:
• Ask the dealer or an authorized technician to install the air conditioner.
• Install the unit at a place that can withstand its weight.
• Use the specified cables for wiring.
• Use only accessories authorized by Mitsubishi Electric and ask the dealer or
an authorized technician to install them.
• Do not touch the heat exchanger fins.
• Install the air conditioner according to this Installation Manual.
• Have all electric work done by a licensed electrician according to local regu-
lations.
• If the air conditioner is installed in a small room, measures must be taken to
prevent the refrigerant concentration from exceeding the safety limit even if
the refrigerant should leak.
• The cut face punched parts may cause injury by cut, etc. The installers are
requested to wear protective equipement such as gloves, etc.
1. Safety precautions ................................................................................... 2
2. Installing the indoor unit ........................................................................... 2
3. Refrigerant pipe and drain pipe ............................................................... 4
4. Electrical work .......................................................................................... 6
5. Installing the grille .................................................................................... 7
6. Test run (Fig. 6-1) ..................................................................................... 9
1. Safety precautions
: Indicates an action that must be avoided.
: Indicates that important instructions must be followed.
: Indicates a part which must be grounded.
: Indicates that caution should be taken with rotating parts.
: Indicates that the main switch must be turned off before servicing.
: Beware of electric shock.
: Beware of hot surface.
ELV
: At servicing, please shut down the power supply for both the Indoor and
Outdoor Unit.
Warning:
Carefully read the labels affixed to the main unit.
Caution:
•Do not use the existing refrigerant piping, when use R410A or R407C refrig-
erant.
•Use ester oil, either oil or alkylbenzene (small amount) as the refrigerator oil
to coat flares and flange connections, when use R410A or R407C refrigerant.
•Do not use the air conditioner where food, pets, plants, precision instruments,
or artwork are kept.
•Do not use the air conditioner in special environments.
•Ground the unit.
•Install an leak circuit breaker, as required.
•Use power line cables of sufficient current carrying capacity and rating.
•Use only a circuit breaker and fuse of the specified capacity.
•Do not touch the switches with wet fingers.
•Do not touch the refrigerant pipes during and immediately after operation.
•Do not operate the air conditioner with the panels and guards removed.
•Do not turn off the power immediately after stopping operation.
2. Installing the indoor unit
2.1. Check the indoor unit accessories (Fig. 2-1)
The indoor unit should be supplied with the following accessories.
Accessory name Q’ty
1Installation template 1
2Washers (with insulation) 4
Washers (without insulation) 4
3Pipe cover (for refrigerant piping joint)
small diameter 1
large diameter 1
4Band (large) 6
Band (small) 2
5Screw with washer (M5 ×25) for mounting grille 4
6Drain socket 1
7Insulation 1
8Flare nut 3/8 F P50 1
9Flare nut 5/8 F P50 1
0Flare nut 3/4 F P100/P125 1
3
2
54
7
6
Fig. 2-1
1
890

3
2. Installing the indoor unit
2.2. Ceiling openings and suspension bolt installation
locations (Fig. 2-2)
•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 are 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
following diagram; so center the main unit against the opening of ceiling, en-
suring 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.
AOuter side of main unit
BBolt pitch
CCeiling opening
DOuter side of Grille
EGrille
FCeiling
GMulti function casement (option)
HEntire periphery
* Note that the space between ceiling panel of the unit and ceiling slab and etc must be 10 to
15 mm.
159
192 159
159
98
860–910 20–45
20–4520–45
20–45
810
950
840
197 159
605
840 950
860–910
A
B
C
D
C
B
D A
135
F
G
E
17
+5 0
17
+5 0
50–70
105
30
C D
Min. 1000
Min. 500
F
H
E
Fig. 2-2
Models C D
P32-P80 241 258
P100, P125 281 298
(mm)
AUnit
BGrille
CPillar
DCeiling
ERafter
FBeam
GRoof beam
HUse inserts rated at 100-150 kg
each (procure locally)
ISuspension bolts M10 (3/8") (procure
locally)
JSteel reinforcing rod
A
B
C
J
HI
DEFG
605
810
12
Fig. 2-4
2.4. Suspension structure (Give site of suspension
strong structure) (Fig. 2-4)
•The ceiling work differs according to the construction of the building. Building con-
structors 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 slanting ceiling, attach a pillar between the
ceiling and the grille and set so that the unit is installed horizontally.
1Wooden 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.)
2Ferro-concrete structures
Secure the suspension bolts using the method shown, or use steel or wooden hang-
ers, etc. to install the suspension bolts.
D
E
A
C
A
B
90 90100
100 130
350
70°
100
G
F
H
I
J
∗155 ∗167
L
K
M
N
O
∗158
120°
120°
Fig. 2-3
2.3. Branch duct hole and fresh air intake hole (Fig. 2-3)
At the time of installation, use the duct holes (cut out) located at the positions shown
in following diagram, 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 di-
mensions marked on the figure.
When installing the branch ducts, be sure to insulate adequately. Otherwise
condensation and dripping may occur.
ABranch duct hole
BIndoor unit
CFresh air intake hole
DDrain pipe
ERefrigerant pipe
FBranch duct hole diagram (view from
either side)
GCut out hole
H14-ø2.8 burring hole
Iø150 cut out hole
Jø175 burring hole pitch
KFresh air intake hole diagram
L3-ø2.8 burring hole
Mø125 burring hole pitch
Nø100 cut out hole
OCeiling

4
2.5. Unit suspension procedures (Fig. 2-5)
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 step A is performed within 17-22 mm. Damage could result by
failing to adhere to this range. (Fig. 2-6)
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 ap-
plying ceiling materials.
2.6. Confirming the position of main unit and tighten-
ing the suspension bolts (Fig. 2-7)
•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.
ASuspension bolt
BCeiling
CNut
DWasher (with insulation)
EMounting plate
FWasher (without insulation)
GCheck using the Installation gauge
17
105 (240)
+5 0
A
B
A
C
D
E
F
C
B
G
Min. 30
A
D
C
B
A=17
+5 0
C
D
B
A
AMain unit
BCeiling
CInstallation template (top of the
package)
DScrew with washer (Accessory)
AMain unit
BCeiling
CGauge
DCeiling opening dimensions
Fig. 2-5
Fig. 2-6
Fig. 2-7
2. Installing the indoor unit
3. Refrigerant pipe and drain pipe
3.1. Refrigerant and drainage piping locations of indoor
unit
The figure marked with * in the drawing represent the dimensions of the main unit
excluding those of the optional multi function casement. (Fig. 3-1)
ADrain pipe
BCeiling
CGrille
DRefrigerant pipe (liquid)
ERefrigerant pipe (gas)
FWater supply inlet
GMain unit
•When the optional multi-functional casement is installed, add 135 mm to the di-
mensions marked on the figure.
(mm)
Models A
P32, P40 76
P50-P80 80
P100, P125 84
16
89
A
98
G
A
∗170
∗140
∗190
60 286 374
AFDE
B
C
Fig. 3-1
3.2. Connecting pipes (Fig. 3-2)
•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 insu-
lation 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. Insu-
late carefully.
AFlare cutting dimensions
Copper pipe O.D. Flare dimensions
(mm) øA dimensions (mm)
ø6.35 8.7 - 9.1
ø9.52 12.8 - 13.2
ø12.7 16.2 - 16.6
ø15.88 19.3 - 19.7
ø19.05 22.9 - 23.3
90°±0.5°
øA
R0.4~R0.8
A
45°±2°
B
Fig. 3-2
C
B

5
BDE
A
C
F
J
H
I
B,C
F
G
ARefrigerant pipe and insulating ma-
terial
BPipe cover (large)
CPipe cover (small)
DRefrigerant pipe (gas)
ERefrigerant pipe (liquid)
FBand
GCross-sectional view of connection
HPipe
IInsulating material
JSqueeze
3.3. Indoor unit (Fig. 3-3)
Heat insulation for refrigerant pipes:
1Wrap 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.
2Wrap 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.
3Secure 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.)
Fig. 3-3
3. Refrigerant pipe and drain pipe
3.4. Drainage piping work (Fig. 3-4)
•Use VP25 (O.D. ø32 (1-1/4”) 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.
1Correct piping
2Wrong piping
AInsulation (9 mm or more)
BDownward slope (1/100 or more)
CSupport metal
KAir bleeder
LRaised
MOdor trap
Grouped piping
DO. D. ø32 PVC TUBE
EMake it as large as possible
FIndoor unit
GMake the piping size large for grouped piping.
HDownward slope (1/100 or more)
IO. D. ø38 PVC TUBE for grouped piping.
(9 mm or more insulation)
JUp to 85 cm
1. Connect the drain socket (supplied with the unit) to the drain port. (Fig. 3-5)
(Affix the tube using PVC adhesive then secure it with a band.)
2. Install a locally purchased drain pipe (PVC pipe, O.D. ø32).
(Affix 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.)
AUnit
BInsulating material
CBand (large)
DDrain port (transparent)
EInsertion margin
FMatching
GDrain pipe (O.D. ø32 PVC TUBE)
HInsulating material (purchased locally)
ITransparent PVC pipe
JO.D. ø32 PVC TUBE (Slope 1/100 or more)
KBand (small)
LDrain socket
Max. 20m
1.5–2m
AB
C
B
M
L
K
DED
H
I
G
D
F
FF
Max. 15cm
J
F
G
11
25 25 25
B
A
C
K
FL
H
DEE
I
J
C,K
Fig. 3-4
Fig. 3-5
(mm)
BRefrigerant pipe sizes & Flare nut tightening torque
P20/25/32/40
P50
P63/80
P100/125
Flare nut O.D.
Liquid Gas
pipe pipe
(mm) (mm)
17 26
22 29
22 29
22 36
CApply refrigerating machine oil over the entire flare seat surface.
* Use the provided flare nut for the following pipes: Liquid pipe of P50, P100, P125, and gas pipe of P50.
R410A
Liquid pipe Gas pipe
Tightening Tightening
Pipe size torque Pipe size torque
(mm) (N.m) (mm) (N.m)
ODø6.35 (1/4”) 14 - 18 ODø12.7 (1/2”) 49 - 61
ODø6.35 (1/4”) 34 - 42 ODø12.7 (1/2”) 68 - 82
ODø9.52 (3/8”) 34 - 42 ODø15.88 (5/8”) 68 - 82
ODø9.52 (3/8”) 34 - 42 ODø15.88 (5/8”) 100 - 120
R407C or R22
Liquid pipe Gas pipe
Tightening Tightening
Pipe size torque Pipe size torque
(mm) (N.m) (mm) (N.m)
ODø6.35 (1/4”) 14 - 18 ODø12.7 (1/2”) 49 - 61
ODø9.52 (3/8”) 34 - 42* ODø15.88 (5/8”) 68 - 82*
ODø9.52 (3/8”) 34 - 42 ODø15.88 (5/8”) 68 - 82
ODø9.52 (3/8”) 34 - 42 ODø19.05 (3/4”) 100 - 120*

6
4. Electrical work
4.1. Indoor unit (Fig. 4-1)
1. Remove the holder and intake sensor.
2. Remove two electrical wiring service panels.
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.
•Install an earth longer and thicker than other cables.
(Earth cable dia: Thicker than 1.6 mm)
•Considering the case of suspending the electrical box during services, leave the
wiring some allowance. (Approx. 50 to 100 mm)
ss
ss
sSelecting non-fuse breaker (NF) or earth leakage breaker (NV).
A means for the disconnection of the supply with an isolation switch, or similar de-
vice, in all active conductors shall be incorporated in the fixed wiring.
Power supply wiring
•Power supply codes of appliance shall not be lighter than design 245 IEC 53 or 227
IEC 53.
•A switch with at least 3 mm contact separation in each pole shall be provided by the
air conditioner installation.
Power cable size: more than 1.5 mm2.
AEntry for control cable FPower supply terminals (with earth terminal)
BEntry for power GTransmission terminals
CClamp HMA Remote controller terminal
DService panel for indoor controller ISecure with the clamp
switch setting JIntake sensor
EService panel for electrical wiring KHolder
Fig. 4-1
Fig. 4-2
1
2
AA
C
TB5 TB15 TB5 TB15
SM1M2 SM1 M2
B
TB3
M1M2 21
C
21
AA
C
TB5 TB5
SM1M2 SM1 M2
C
B
TB3
M1M2
4.2. Connecting remote controller, indoor and outdoor
transmission cables (Fig. 4-2)
•Connect indoor unit TB5 and outdoor unit TB3. (Non-polarized 2-wire)
The “S”on indoor unit TB5 is a shielding wire connection. For specifications about
the connecting cables, refer to the outdoor unit installation manual.
•Install a remote controller following the manual supplied with the remote controller.
•Connect the remote controller’s transmission cable within 10 m using a 0.75 mm2
core cable. If the distance is more than 10 m, use a 1.25 mm2junction cable.
1MA Remote controller
•Connect the “1”and “2”on indoor unit TB15 to a MA remote controller. (Non-polar-
ized 2-wire)
•DC 9 to 13 V between 1 and 2 (MA remote controller)
2M-NET Remote controller
•Connect the “M1”and “M2”on indoor unit TB5 to a M-NET remote controller. (Non-
polarized 2-wire)
•DC 24 to 30 V between M1 and M2 (M-NET remote controller)
ATerminal block for indoor transmission cable
BTerminal block for outdoor transmission cable
CRemote controller
Constraints on transmission cable (Fig. 4-3)
Longest wiring length (L1+L2+L4or L1+L3or L2+L3+L4): less than 200 m
Length between indoor unit and remote controller (R): within 10 m
GOutdoor unit
HEarth
IBC controller
JIndoor unit
KM-NET Remote controller
LNon-polarized 2-wire
Note:
*1 Put the transmission cable earth via the outdoor unit’s earth terminal to
the ground.
*2 If the remote controller cable exceeds 10 m, use a 1.25 mm2diameter cable
over the exceeded portion, and add that exceeded portion to within 200 m.
*3 The BC controller is required only for simultaneous cooling and heating
series R2.
4.3. Setting addresses (Fig. 4-4)
(Be sure to operate with the main power turned OFF.)
•There are two types of rotary switch setting available: setting addresses 1 to 9 and
over 10, and setting branch numbers.
Note:
Please set the switch SW5 according to the power supply voltage.
•Set SW5 to 240 V side when the power supply is 230 and 240 volts.
•When the power supply is 220 volts, set SW5 to 220 V side.
AAddress board
Fig. 4-3
A
Fig. 4-4
G
I
JJJ
KK
KK
JJ
LK
H
*1
*3
L1
L2 L4
r
L3
*2
SW14
0
SW11
0
SW12
0
12345678910
ON
OFF
SW1
SW5
220V 240V
SWC
CN82
CN43
3
2
SWA
1
2
3
SWB
4
A
E
D
J,K
B
C
GF
I
H

7
4. Electrical work
4.4. Switch setting for high ceiling or at the time of
changing the number air outlets
In this unit, the volume and speed of airflow can be adjusted by setting the switches
(SWA and SWB) on the indoor controller board.
■PLFY-P32-P80VAM
SWA 123
SWB Standard High ceiling 1High ceiling 2
44 direction 2.7 m 3.0 m 3.5 m
33 direction 3.0 m 3.3 m 3.5 m
42 direction 3.3 m 3.5 m –
4.5. Sensing room temperature with the built-in sen-
sor in a remote controller
If you want to sense room temperature with the built-in sensor in a remote controller,
set SW1-1 on the control board to “ON”.The setting of SW1-7 and SW1-8 as neces-
sary also makes it possible to adjust the air flow at a time when the heating ther-
mometer is OFF.
5.1. Checking the contents (Fig. 5-1)
•This kit contains this manual and the following parts.
Accessory name Q’ty Remark
1Grille 1 950 ×950 (mm)
2Screw with captive washer 4 M5 ×0.8 ×25
3Gauge 1 (Divided into four parts)
4Fastener 2
5Screw 4 4 ×8
5. Installing the grille
1
4 5
ø20
2 3
Fig. 5-1
Fig. 5-2
A
D
C
B
A=17
+5 0
Fig. 5-3
B
A
C
11
D
E
2
F
G
FB
1
5.2. Preparing to attach the grille (Fig. 5-2)
•With the gauge 3supplied 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 step A is performed within 17-22 mm. Damage could result by fail-
ing to adhere to this range.
AMain unit
BCeiling
CGauge 3(inserted into the unit)
DCeiling opening dimensions
5.2.1. Removing the intake grille (Fig. 5-3)
•Slide the levers in the direction indicated by the arrow 1to 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 arrow 2.
5.2.2. Removing the corner panel (Fig. 5-4)
•Remove the screw from the corner of the corner panel. Slide the corner panel as
indicated by the arrow 1to remove the corner panel.
AIntake grille
BGrille
CIntake grille levers
DGrille hook
EHole for the grille’s hook
FCorner panel
GScrew
■PLFY-P100, P125VAM
SWA 123
SWB Standard High ceiling 1High ceiling 2
44 direction 3.2 m 3.6 m 4.2 m
33 direction 3.6 m 4.0 m 4.2 m
22 direction 4.0 m 4.2 m –
4.6. Types of control cables
1. Wiring transmission cables: Shielding wire CVVS or CPEVS
•Cable diameter : More than 1.25 mm2
2. M-NET Remote control cables
Kind of remote control cable Shielding wire MVVS
Cable diameter More than 0.5 to 1.25 mm2
Remarks When 10 m is exceeded, use cable with the same
specifications as transmission line wiring.
3. MA Remote control cables
Kind of remote control cable 2-core cable (unshielded)
Cable diameter 0.3 to 1.25 mm2
Fig. 5-4

8
5.4. Installing the grille
5.4.1. Preparations (Fig. 5-5)
•Install the two enclosed screws with washer 2in the main unit (at the corner drain
pipe area and at the opposite corner) as shown in the diagram.
Fig. 5-5
15-20
A
B
A
C
D
E
FI
GH
AC
D
B
AMain unit
BDetailed diagram of installed screw with
washer 2.
CCorner drain pipe area
DScrew with washer 2(for temporary use)
EGrille
FScrew with washer 2
GHole A
HHole B
IBell shaped hole
Fig. 5-6
5.4.2. Temporary installation of the grille (Fig. 5-6)
•Temporarily secure the grille using the bell shaped holes by aligning the corner
drain pipe area of the main unit with the two holes of the grille that are marked A
and B.
* Make sure that the lead wiring of the grille does not get pinched between the
grille and the main unit.
5.4.3. Securing the grille (Fig. 5-7)
•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.
E
ACeiling
BMain unit
CGrille
DMake sure that there are no gaps.
EAdjust the nut of the main unit using a
wrench, etc.
Fig. 5-7
A
D
C
BE
Fig. 5-8
AClamp of the main unit
BTube
CConnector of the main unit
DGrille connector
EFastener
5.3. 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 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 in-
stalled.
Note:
For 3 and 2-directional, please use the air outlet shutter plate (option).
4-directional 3-directional
One pattern: 4 patterns:
Factory setting One air outlet fully closed
2-directional
6 patterns:
Two air outlet fully closed
Blowout
direction
patterns
Blowout
direction
patterns
5. Installing the grille
5.4.4. Wire connection (Fig. 5-8)
•Be sure to connect the unit to the connector (white, 10-pole). Next, attach the white
glass tube that comes with the main unit so that the tube covers the connector.
Close the opening of the glass tube with the fastener.
•Make sure that there is no slack in the lead wire at the clamp of the main unit.
Warning:
If the connector is not covered with the glass tube, tracking resulting in fire
may occur.

9
5. Installing the grille
C
B
A
D
B
AD
Fig. 5-9
5.5. Locking the up/down airflow direction (Fig. 5-9)
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.
1Turn off the main power switch.
Injuries and or an electrical shock may occur while the fan of the unit is rotating.
2Disconnect 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.
5.6. 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.
5.7. Installing the intake grille (Fig. 5-10)
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 “5.2. 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.)
DRefrigerant piping of the main unit
EDrain piping of the main unit
FPosition of the corner panel when sent from the factory (logo attached).
* Installation in any position is possible.
GPosition 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 elec-
tric component box of the main unit.)
AButton
BVane motor
CUp/down vanes
DConnector
C
A
B
AScrew (4 ×8) 5
BCorner panel
CSafety wire
Fig. 5-10
6. Test run (Fig. 6-1)
TIMER SET
PAR-20MAA
ON/OFF
CENTRALLY CONTROLLED
ERROR CODE
CLOCK
ON OFF
˚C
CHECK
CHECK MODE
FILTER
TEST RUN
FUNCTION
˚C
1Hr.
NOT AVAILABLE
STAND BY
DEFROST
FILTER
CHECK TEST
TEMP.
2
BC
34
5
1
A
E
D
1Press [TEST RUN] button twice →displaying [TEST RUN] on the screen.
2Press [Selecting operation] button. →Check that wind is blowing out.
3Press [Fan speed adjustment] button. →Check that the wind speed is changed.
4Press [Up/down airflow selection] button to change wind direction.
5Press [ON/OFF] button to clear test run. →Test run stops.
ALighting in operation
BDisplaying inspection code
CDisplaying remaining test run time
DDisplaying indoor unit’s liquid pipe temperature
EDisplaying test run
Note:
•The 2-hour-set timer is activated to automatically stop test run after two hours.
•The remote controller displays the temperature of the indoor unit’s liquid
pipe on the temperature display section during test run.
Fig. 6-1
6.1. Check of drainage (Fig. 6-2)
•During the trial run, ensure the water is being properly drained out and that no
water is leaking from joints.
•Always check this during installation even if the unit is not required to provide cool-
ing/drying at that time.
•Similarly, check the drainage before finishing ceiling installation in a new premises.
(1) Remove the cover of the water supply inlet and add about 1000 cc of water using
a water supply pump etc. During this process, be careful not to spray water into
the drain pump mechanism.
(2) Confirm that water is being drained out through the drainage outlet, after switch-
ing over from remote control mode to trial run mode.
(3) After checking the drainage, ensure that the cover is replaced and the power
supply is isolated.
(4) After confirming the drainage system is functioning, replace the drain plug.
A
B
C
D
E
Fig. 6-2
AInsert the pump end 3 to 5 cm
BCover of water supply inlet
CAbout 1000 cc
DWater
EDrain plug
D
G
E
F

10
2. Instalación de la unidad interior
sAntes de instalar la unidad, asegúrese de haber leído el capítulo de “Me-
didas de seguridad”.
sInforme al encargado del suministro u obtenga su consentimiento antes
de conectar este equipo al sistema de suministro de alimentación.
Atención:
Describe las precauciones que deben tenerse en cuenta para evitar el riesgo
de lesiones o muerte del usuario.
Cuidado:
Describe las precauciones que deben tenerse en cuenta para evitar daños en
la unidad.
Después de terminar la instalación, explique las “Medidas de seguridad”, funciona-
miento y mantenimiento de la unidad al cliente según el Manual de instrucciones y
realice una prueba para asegurarse de que funciona correctamente. Entregue una
copia del Manual de instalación y del Manual de instrucciones al usuario. Estos ma-
nuales deben pasar a usuarios posteriores del equipo.
Atención:
• La instalación del aire acondicionado debe correr a cargo del distribuidor o
de un técnico autorizado.
• Instale la unidad en un lugar capaz de soportar su peso.
• Utilice los cables especificados para la instalación eléctrica.
• Utilice sólo accesorios autorizados por Mitsubishi Electric y pida a su distri-
buidor o a una empresa autorizada que se los instale.
• No toque las aletas del intercambiador de calor.
• Instale el aire acondicionado según se indica en este manual de instalación.
• Todas las conexiones eléctricas deberán ser realizadas por un electricista
autorizado de acuerdo con la normativa local.
• Si el aire acondicionado se instala en una habitación pequeña deberán to-
marse medidas para prevenir que la concentración de refrigerante exceda
los límites de seguridad incluso si hubiese fugas.
• Las partes perforadas de caras recortadas pueden causar daños por cortes,
etc. Los instaladores deberán llevar equipo de protección adecuado como
por ejemplo guantes, etc.
1. Medidas de seguridad
: Indica una acción que debe evitarse.
: Indica que deben seguirse unas instrucciones importantes.
: Indica una pieza que debe estar conectada a tierra.
: Indica que debe tenerse cuidado con las piezas giratorias.
: Indica que debe apagarse el interruptor principal antes de intervenir en la unidad.
: Peligro de descarga eléctrica.
: Peligro por superficie caliente.
ELV
: A la hora de realizar una reparación, desconecte el interruptor principal tan-
to de la unidad interior como de la exterior.
Atención:
Lea atentamente las etiquetas adheridas a la unidad principal.
Cuidado:
•No utilice los tubos de refrigerante existentes cuando utilice el refrigerante R410A
o R407C.
•Utilice aceite de éster, aceite o alquilobenceno (en pequeñas cantidades) como
aceite de refrigerador para recubrir las conexiones abocinadas y bridadas al
usar refrigerante R410A o R407C.
•No utilice el aire acondicionado en lugares en los que se guarde comida,
animales domésticos, plantas, instrumentos de precisión u obras de arte.
•No utilice el equipo de aire acondicionado en entornos especiales.
•Conecte la unidad a tierra.
•Instale un interruptor para el circuito de fugas.
•Utilice cables de alimentación de capacidad y gama de corriente adecuadas.
•Utilice un interruptor de circuito y un fusible exclusivamente de la capacidad
indicada.
•No toque los enchufes con los dedos mojados.
•No toque las tuberías de refrigerante durante el funcionamiento e inmediata-
mente después de éste.
•No accione el equipo de aire acondicionado cuando se hayan extraído los
paneles y las protecciones.
•No desconecte la corriente inmediatamente después de parar el funciona-
miento del equipo.
Contenido
1. Medidas de seguridad ........................................................................... 10
2. Instalación de la unidad interior ............................................................. 10
3. Tubo de refrigerante y tubo de drenaje .................................................. 12
4. Trabajo eléctrico .................................................................................... 14
5. Instalación de la rejilla ........................................................................... 15
6. Prueba de funcionamiento (Fig. 6-1) ..................................................... 17
2.1. Comprobación de los accesorios de la unidad in-
terior (Fig. 2-1)
La unidad interior debe ir acompañada de los siguientes accesorios.
Nombre accesorio Cant.
1Plantilla de instalación 1
2Arandelas (con aislamiento) 4
Arandelas (sin aislamiento) 4
3
Cubierta de tubería (para junta de tubería de refrigerante)
diámetro pequeño 1
diámetro grande 1
4Abrazadera (grande) 6
Abrazadera (pequeña) 2
5Tornillo con arandela (M5 ×25) para montar la rejilla 4
6Tubo de desagüe 1
7Aislante 1
8Tuerca de abocardado 3/8 F P50 1
9Tuerca de abocardado 5/8 F P50 1
0Tuerca de abocardado 3/4 F P100/P125 1
3
2
5
4
7
6
Fig. 2-1
1
890