Mitsubishi Electric City multi PLFY-P Series User manual

Air-Conditioners For Building Application
INDOOR UNIT
PLFY-P·VBM-E
INSTALLATION MANUAL
For safe and correct use, read this manual and the outdoor unit installation manual thoroughly before installing
the air-conditioner unit.
INSTALLATIONSHANDBUCH
Aus Sicherheitsgründen und zur richtigen Anwendung vor Installation der Klimaanlage die vorliegende Bedie-
nungsanleitung und das Installationshandbuch gründlich durchlesen.
MANUEL D’INSTALLATION
Avant d’installer le climatiseur, lire attentivement ce manuel, ainsi que le manuel d’installation de l’appareil exté-
rieur pour une utilisation sûre et correct.
INSTALLATIEHANDLEIDING
Lees deze handleiding en de installatiehandleiding van het buitenapparaat zorgvuldig door voordat u met het
installeren van de airconditioner begint.
MANUALE DI INSTALLAZIONE
Per un uso sicuro e corretto, prima di installare il condizionatore d’aria leggere attentamente il presente manuale
ed il manuale d’installazione dell’unità esterna.
MANUAL DE INSTALACIÓN
Para un uso seguro y correcto, lea detalladamente este manual de instalación antes de montar la unidad de
aire acondicionado.
MANUAL DE INSTALAÇÃO
Para uma utilização segura e correcta, leia atentamente este manual e o manual de instalação da unidade exte-
rior antes de instalar o aparelho de ar condicionado.
PARA O INSTALADOR
PER L’INSTALLATORE
PARA EL INSTALADOR
VOOR DE INSTALLATEUR
POUR L’INSTALLATEUR
FÜR INSTALLATEURE
FOR INSTALLER
  
Για σωστή και ασφαλή χρήση, διαβάστε προσεκτικά αυτό το εγχειρίδιο, καθώς και το εγχειρίδιο εγκατάστασης
της εξωτερικής μονάδας, πριν από την εγκατάσταση της μονάδας κλιματιστικού.
     
MONTAJ ELKTABI
Emniyetli ve doğru kullanım için, klima cihazınımonte etmeden önce bu kılavuzu ve dışünite montaj kılavuzunu
tamamıyla okuyun.
MONTÖR ÇN
  
Для обеспечения безопасной инадлежащей эксплуатации внимательно прочтите данное руководство и
руководство по установке наружного прибора перед установкой кондиционера.
 
English
Deutsch
Français
Nederlands
Español
Italiano

Português
Türkçe

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Before installing the unit, make sure you read all the “Safety precau-
tions”.
Please report to your supply authority or obtain their consent before
connecting this equipment to the power supply system.
1. Safety precautions
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)
Washers (without insulation) 4
4
3
Pipe cover (for refrigerant piping joint)
Small diameter
Large diameter 1 1
4Band (large)
Band (small) 6
2
5Screw with washer (M5 × 25) for mounting grille 4
6Drain socket 1
7Insulation 1
Fig. 2-1




Contents
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....................................................................................11
6. Test run (Fig. 6-1)....................................................................................13
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
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 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.
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
regulations.
• 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.
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 refrig-
erant.
• Do not use the air conditioner where food, pets, plants, precision instru-
ments, 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.
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Fig. 2-2
150
160
160
160
160
90
860-910 
20-45
(7.5)(7.5)
20-45 20-45
20-45
810 
950 
187.5
840

840 
135
17+5
0
17+5
0
*50-70
*105
35 C
D
Min. 2500
Min. 500
605

-5
+35
860-910

950

620
*158
120
120
Fig. 2-3
Fig. 2-4
605
810
 Unit
 Grille
 Pillar
 Ceiling
 Rafter
 Beam
 Roof beam
350
90
70°
100 100 90
100 130
*155 *167













!











Use inserts rated at 100-150kg each
(procure locally)
 Suspension bolts M10 (3/8")
(procure locally)
 Steel reinforcing rod
2. Installing the indoor unit
2.2. Ceiling openings and suspension bolt installation
locations (Fig. 2-2)
Caution:
Install the indoor unit at least 2.5m above floor or grade level.
For appliances not accessible to the general public.
• 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.2-2; 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.
AOuter side of main unit EGrille
BBolt pitch FCeiling
CCeiling opening GMulti function casement (option)
DOuter side of Grille HEntire periphery
* Note that the space between ceiling panel of the unit and ceiling slab and etc must be 10 to
15 mm.
* When the optional multi-functional casement is installed, add 135mm to the
dimensions marked on the figure. (mm)
Models C D
32,40,50,63,80 241 258
100,125 281 298
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 Fig.2-3, 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.
ABranch duct hole G14-ø2.8 burring hole
BIndoor unit Hø150 cut out hole
CFresh air intake hole Iø175 burring hole pitch
DDrain pipe JFresh air intake hole diagram
ERefrigerant pipe K3-ø2.8 burring hole
FBranch duct hole diagram
(view from either side) Lø125 burring hole pitch
Mø100 cut out hole
NCeiling
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
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 rein-
forced 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 ceil-
ing 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.
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
hangers, etc. to install the suspension bolts.
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17
105 (240)
+5 0
Min. 30
A=17
+5 0
















ASuspension bolt
BCeiling
CNut
DWasher (with insulation)
EMounting plate
FWasher (without insulation)
GCheck using the Installation gauge
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
Fig. 3-1
90° ± 0.5°
øA
R0.4~R0.8
45° ± 2°



Fig. 3-2
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 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 applying 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 tem-
plate.
3. Refrigerant pipe and drain pipe
(mm)
Models A
32, 40, 50, 63, 80 80
100, 125 85
B
74
77
24
90
A
B
*170
*140
*190
60 284 377






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
dimensions marked on the figure.
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 in-
sulation 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 tighten-
ing flare nut.
• Use two wrenches to tighten piping connections.
• Use refrigerant piping insulation provided to insulate indoor unit connections. In-
sulate carefully.
AFlare cutting dimensions
Copper pipe O.D.
(mm) Flare dimensions 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
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3.3. Indoor unit (Fig. 3-3)
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.)
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)
(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.)
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
11
25 25 25


,






Max. 20m
1.5–2m
Max. 15cm









 





Fig. 3-4
Fig. 3-5
(mm)
CApply refrigerating machine oil over the entire flare seat surface.
* Do not apply refrigerating machine oil to the screw portions.
(This will make the flare nuts more apt to loosen.)
DBe certain to use the flare nuts that are attached to the main unit.
(Use of commercially-available products may result in cracking.)
 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










BRefrigerant pipe sizes & Flare nut tightening torque
R407C or R22 R410A Flare nut O.D.
Liquid pipe Gas pipe Liquid pipe Gas pipe
Pipe size
(mm)
Tightening
torque
(N.m)
Pipe size
(mm)
Tightening
torque
(N.m)
Pipe size
(mm)
Tightening
torque
(N.m)
Pipe size
(mm)
Tightening
torque
(N.m)
Liquid pipe
(mm) Gas pipe (mm)
P20/25/32/40 ODø6.35 (1/4”) 14 - 18 ODø12.7 (1/2”) 49 - 61 ODø6.35 (1/4”) 14 - 18 ODø12.7 (1/2”) 49 - 61 17 26
P50 ODø9.52 (3/8”) 14 - 18* ODø15.88 (5/8”) 49 - 61* ODø6.35 (1/4”) 14 - 18 ODø12.7 (1/2”) 49 - 61 17 26
P63/80 ODø9.52 (3/8”) 34 - 42 ODø15.88 (5/8”) 68 - 82 ODø9.52 (3/8”) 34 - 42 ODø15.88 (5/8”) 68 - 82 22 29
P100/125 ODø9.52 (3/8”) 34 - 42 ODø19.05 (3/4”) 68 - 82* ODø9.52 (3/8”) 34 - 42 ODø15.88 (5/8”) 68 - 82 22 29
* Connect the joint with the following pipes: Liquid and gas pipes of P50, gas pipe of P100/P125.
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