Mitsubishi Electric MXZ-8C48NA User manual
INSTALLATION MANUAL
For safe and correct use, please read this installation manual thoroughly before installing the air-conditioner unit.
MANUEL D’INSTALLATION
Veuillez lire le manuel d’installation en entier avant d’installer ce climatiseur pour éviter tout accident et vous
assurer d’une utilisation correcte.
MANUAL DE INSTALACIÓN
Para un uso seguro y correcto, lea detalladamente este manual de instalación antes de montar la unidad de
aire acondicionado.
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Air-Conditioners OUTDOOR UNIT
MXZ-8C48NA
MXZ-4C36/5C42/8C48NAHZ
Français
Español
English
Français
Español
English
HFC
utilized
R410A
FOR INSTALLER
POUR L’INSTALLATEUR
PARA EL INSTALADOR
2
Contents
1. Safety precautions
ŹBefore installing the unit, make sure you read all the “Safety precautions”.
ŹPlease report to or take consent by the supply authority before connec-
tion to the system.
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:
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Warning:
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technician to install the unit. If the unit is installed incorrectly, water leakage,
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erant are used and the unit is not installed correctly, the pipes may burst and
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may result.
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the risk of damage from earthquakes, typhoons, or strong winds. An incor-
rectly 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 unit is mounted on an unstable structure, it may fall down and cause
damage or injuries.
If the air conditioner is installed in a small room, measures must be taken to
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in the event of refrigerant leakage. Consult a dealer regarding the appropriate
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local regulations and the instructions given in this manual. The units must
be powered by dedicated power lines and the correct voltage and circuit
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intermediate connections).
Intermediate connections can lead to communication errors if water enters
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electrical contact at the intermediate connection point.
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prevent water from entering the cords and wires.)
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to connect the refrigerant pipes. If the pipes are not connected correctly, the
unit will not be properly grounded and electric shock may result.
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securely with no tension applied on the terminal connections. Also, never
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the cover panel is mounted incorrectly and dust and moisture enter the unit,
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with any other refrigerant and do not allow air to remain in the lines.
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7KHXVHRIDQ\UHIULJHUDQWRWKHUWKDQWKDWVSHFL¿HGIRUWKHV\VWHPZLOOFDXVH
mechanical failure or system malfunction or unit breakdown. In the worst
case, this could lead to a serious impediment to securing product safety.
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RU DQ DXWKRUL]HG WHFKQLFLDQ WR LQVWDOO WKHP ,I DFFHVVRULHV DUH LQFRUUHFWO\
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The user should never attempt to repair the unit or transfer it to another location.
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result. If the air conditioner must be repaired or moved, ask a dealer or an
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portable cooking range, poisonous gases will be released.
1.1. Before installation
Caution:
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reduced and the internal parts can be damaged.
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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.
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sure to provide drainage around the outdoor unit if such condensation is
likely to cause damage.
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for noise and electronic interference. Inverters, home appliances, high-
frequency 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 communi-
cations equipment, harming the screen display quality.
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Caution:
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the packaging bands. Wear protective gloves to remove the unit from the
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edge of other parts.
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such as nails and other metal or wooden parts may cause stabs or other
injuries.
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for looseness, cracks or other damage. If such defects are left uncorrected,
the unit may fall down and cause damage or injuries.
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7LJKWHQDOOÀDUHQXWVWRVSHFL¿FDWLRQXVLQJDWRUTXHZUHQFK,IWLJKWHQHGWRR
PXFKWKHÀDUHQXWFDQEUHDNDIWHUDQH[WHQGHGSHULRGDQGUHIULJHUDQWFDQ
leak out.
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In addition to this manual, the following parts are supplied with the outdoor unit.
They are used for grounding the S terminals of transmission terminal blocks TB3, TB7.
For details refer to “7. Electrical work”. Grounding lead wire (× 2)
1. Safety precautions................................................2
2. Installation diagram & parts.........................................3
3. Installation location ...............................................4
4. Installing the outdoor unit ..........................................6
5. Installing the refrigerant piping ......................................6
6. Drainage piping work.............................................10
7.Electricalwork..................................................10
8.Testrun.......................................................16
9. Special Functions ...............................................17
3
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This installation manual is only for the outdoor unit installation. In installing
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to each unit.
Any structural alterations necessary for the installation must comply with the local
building code requirements.
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For actual installation, the outdoor unit is to be turned 180°.
Units should be installed by licensed contractor according to local code requirement.
Note:
The dimensions given along the arrows above are required to guarantee the
air conditioner’s performance. Install the unit in as wide a place as possible
for later service or repairs.
Parts to be locally procured
Branch box/outdoor unit connecting wire (3-core) 1
Extension pipe 1
Wall hole sleeve 1
Wall hole cover 1
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(The quantity depends on the pipe length.) 2 to 7
Fixing screw for 4 × 20 mm (13/16")
(The quantity depends on the pipe length.) 2 to 7
Piping tape 1
Putty 1
Refrigeration oil 1
Power supply cord (2-core, Refer to 7.3. Wiring transmission cables) 1
1.3. Before electric work
Caution:
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IMPORTANT
Make sure that the current leakage breaker is one compatible with higher
harmonics.
Always use a current leakage breaker that is compatible with higher har-
monics as this unit is equipped with an inverter.
The use of an inadequate breaker can cause the incorrect operation of in-
verter.
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connections are loosened, the cables can snap or break and overheating or
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pipes, lighting rods, or telephone grounding lines. If the unit is not properly
grounded, electric shock may result.
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PROGHGFDVHFLUFXLWEUHDNHUZLWKWKHVSHFL¿HGFDSDFLW\,IWKHFLUFXLWEUHDNHU
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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 dam-
age the internal parts. Keep the main power switch turned on during the
operation season.
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parts are correctly installed. Rotating, hot, or high voltage parts can cause
injuries.
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refrigerant. If you touch the pipes, burns or frostbite may result.
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the main power switch. Otherwise, water leakage or breakdown may result.
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Caution
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to connect the refrigerant pipes. Make sure the insides of the pipes are clean
and do not contain any harmful contaminants such as sulfuric compounds,
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ant.
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- Do not use thin pipes. (Refer to page 6)
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packaging.) If dust, debris, or moisture enters the refrigerant lines, oil dete-
rioration or compressor breakdown may result.
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oil, oil deterioration may result.
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used, the chlorine will cause the oil to deteriorate.
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7KH IROORZLQJ WRROV DUH QHFHVVDU\ WR XVH 5$ UHIULJHUDQW &RQWDFW \RXU
nearest dealer for any questions.
Tools (for R410A)
Gauge manifold Flare tool
Charge hose Size adjustment gauge
Gas leak detector Vacuum pump adapter
Torque wrench Electronic refrigerant charging scale
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erant lines, refrigeration oil deterioration may result.
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1. Safety precautions
2. Installation diagram & parts
Fig. 2-1
Outdoor unit
Branch box
5-branches type
3-branches type
4
3.1. Refrigerant pipe
Refer to 5.2. Pipe length and height difference.
3.2. Choosing the outdoor unit installation location
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neighbors.
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indoor unit.
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late.
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snow fall is anticipated, special precautions such as raising the installation location
or installing a hood on the air intake must be taken to prevent the snow from
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a malfunction may result.
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3.4.
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You should note that indoor units that can be connected to this outdoor unit have
the following constraints.
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nected.
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7KHWRWDOUDWHGFDSDFLW\FRROLQJRIWKHFRQQHFWHGLQGRRUVXQLWVUHIHUWR7DEOH
must not exceed 130% of the outdoor unit capacity (refer to the capacity range of
connected units in Table 1).
In addition, up to 2 branch boxes can be connected.
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Outdoor unit model name 1XPEHURIXQLWVWKDWFDQ
be connected Capacity range of
connected units
MXZ-4C36 2 – 4 (3) units *1 *2 12 – 46 kBTU/h
MXZ-5C42 2 – 5 (4) units *1 *2 12 – 54 kBTU/h
MXZ-8C48 2 – 8 (6) units *1 *2 12 – 62 kBTU/h
*1 The number enclosed in parentheses is the maximum number of units that can
be connected when 1 or more PLA-A·EA7 units is connected.
*2 For each connected branch box, when 2 MVZ-series units are connected, other
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above, including connections with MVZ-series units, consult a dealer.
Table 2: Rated capacity (cooling) of the indoor units
0RGHO1R 06 09 12 15 18 24 30 36
Rated capacity (Cooling) (kBTU/h) 6 9 12 15 18 24 30 36
Example: MXZ-8C48
MSZ-18 = 18
+
SEZ-12 = 12
+
SLZ-12 = 12
+
SLZ-09 = 9
+
SLZ-09 = 9
Combinations in which the total capacity of indoor units exceeds the capacity of the
outdoor unit will reduce the cooling capacity of each indoor unit below their rated
cooling capacity. Thus, combine indoor units with an outdoor unit within the outdoor
unit’s capacity, if possible.
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Note:
The dimensions given along the arrows above are required to guarantee the
air conditioner’s performance. Install the unit in as wide a place as possible
for later service or repairs.
3.5.1. Windy location installation
When installing the outdoor unit on a rooftop or other location unprotected from the
wind, situate the air outlet of the unit so that it is not directly exposed to strong winds.
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may result.
The following shows 3 examples of precautions against strong winds.
1Face the air outlet towards the nearest available wall about 50 cm (19-11/16”)
away from the wall. (Fig. 3-2)
2Install an optional air guide if the unit is installed in a location where strong winds
from a typhoon, etc. may directly enter the air outlet. (Fig. 3-3)
AAir guide
3Position the unit so that the air outlet blows perpendicularly to the seasonal wind
direction, if possible. (Fig. 3-4)
BWind direction
3. Installation location
Fig. 3-1
Fig. 3-2
Fig. 3-3
Fig. 3-4
B
Total rated capacity
N%78K
13
14-9/16
41-11/32
8-7/8 23-5/8
52-11/16
(inch)
5
3. Installation location
3.5.2. When installing a single outdoor unit
Minimum dimensions are as follows, except for Max., meaning Maximum dimen-
sions, indicated.
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1Obstacles at rear only (Fig. 3-5)
2Obstacles at rear and above only (Fig. 3-6)
3Obstacles at rear and sides only (Fig. 3-7)
4Obstacles at front only (Fig. 3-8)
* When using the optional air outlet guides, the clearance is 19-11/16” (500 mm) or more.
5Obstacles at front and rear only (Fig. 3-9)
* When using the optional air outlet guides, the clearance is 19-11/16” (500 mm) or more.
6Obstacles at rear, sides, and above only (Fig. 3-10)
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3.5.3. When installing multiple outdoor units
Leave 1” (25 mm) space or more between the units.
1Obstacles at rear only (Fig. 3-11)
2Obstacles at rear and above only (Fig. 3-12)
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3Obstacles at front only (Fig. 3-13)
* When using the optional air outlet guides, the clearance is 39-3/8” (1000 mm) or more.
4Obstacles at front and rear only (Fig. 3-14)
* When using the optional air outlet guides, the clearance is 39-3/8” (1000 mm) or more.
5Single parallel unit arrangement (Fig. 3-15)
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(1000 mm) or more.
6Multiple parallel unit arrangement (Fig. 3-16)
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(1500 mm) or more.
7Stacked unit arrangement (Fig. 3-17)
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shown.
39-3/8 *
5-29/32
11-13/16
39-3/8
7-7/8
11-13/16
7-7/8
5-29/32
39-3/8 *
9-27/32
9-27/32
59-1/16
19-11/16
11-13/16
59-1/16
19-11/16
59-1/16
59-1/16 *
59-1/16 *
19-11/16
39-3/8
23-5/8
78-24/32 *
5-29/32
59-1/16
23-5/8
118-4/32 *
19-11/16
59-1/16
31-1/2
5-29/32
Fig. 3-6
Fig. 3-10 Fig. 3-11
Fig. 3-12 Fig. 3-13 Fig. 3-14
Fig. 3-16Fig. 3-15 Fig. 3-17
Fig. 3-9
Fig. 3-8Fig. 3-7Fig. 3-5
(inch)
Max. 19-11/16
Max. 11-13/16
Max. 19-11/16
6
4. Installing the outdoor unit
%HVXUHWRLQVWDOOWKHXQLWLQDVWXUG\OHYHOVXUIDFHWRSUHYHQWUDWWOLQJQRLVHVGXU-
ing operation. (Fig. 4-1)
)RXQGDWLRQVSHFL¿FDWLRQV!
Foundation bolt M10 (3/8")
Thickness of concrete 120 mm (4-23/32”)
Length of bolt 70 mm (2-3/4”)
Weight-bearing capacity 320 kg (705 lbs)
0DNHVXUHWKDWWKHOHQJWKRIWKHIRXQGDWLRQEROWLVZLWKLQPP´RIWKH
bottom surface of the base.
6HFXUHWKHEDVHRIWKHXQLW ¿UPO\ ZLWK IRXU0 IRXQGDWLRQEROWVLQVWXUG\ORFD-
tions.
Installing the outdoor unit
'RQRWEORFNWKHYHQW,IWKHYHQWLVEORFNHGRSHUDWLRQZLOOEHKLQGHUHGDQGEUHDN-
down may result.
,QDGGLWLRQWRWKHXQLWEDVHXVHWKHLQVWDOODWLRQKROHVRQWKHEDFNRIWKHXQLWWR
attach wires, etc., if necessary to install the unit. Use self-tapping screws (ø5 ×
15 mm, ø13/16” × 19/32” or less) and install on site.
Warning:
7KHXQLWPXVWEHVHFXUHO\LQVWDOOHGRQD VWUXFWXUH WKDW FDQ VXVWDLQ LWV
weight.
If the unit is mounted on an unstable structure, it may fall down and cause
damage or injuries.
7KHXQLWPXVWEHLQVWDOOHGDFFRUGLQJ WR WKH LQVWUXFWLRQV LQRUGHUWRPLQL-
PL]HWKHULVNRIGDPDJHIURPHDUWKTXDNHVW\SKRRQV RU VWURQJ ZLQGV $Q
incorrectly installed unit may fall down and cause damage or injuries.
Caution:
,QVWDOOWKHXQLWRQDULJLGVWUXFWXUHWRSUHYHQWH[FHVVLYHRSHUDWLRQVRXQGRU
vibration.
5. Installing the refrigerant piping
3UHFDXWLRQVIRUGHYLFHVWKDWXVH5$UHIULJHUDQW
5HIHUWRSDJHIRUSUHFDXWLRQVQRWLQFOXGHGEHORZRQXVLQJDLUFRQGLWLRQHUVZLWK
R410A refrigerant.
8VHHVWHURLOHWKHURLODON\OEHQ]HQHRLOVPDOODPRXQWDVWKHUHIULJHUDWLRQRLODS-
SOLHGWRWKHÀDUHGVHFWLRQV
Use C1220 copper phosphorus, for copper and copper alloy seamless pipes, to con-
QHFWWKHUHIULJHUDQWSLSHV8VHUHIULJHUDQWSLSHVZLWKWKHWKLFNQHVVHVVSHFL¿HGLQWKH
table to the 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 relocating, or servicing the outdoor unit, use only the speci-
¿HGUHIULJHUDQW5$WRFKDUJHWKHUHIULJHUDQWOLQHV'RQRWPL[LWZLWKDQ\
other refrigerant and do not allow air to remain in the lines.
,IDLULVPL[HGZLWKWKHUHIULJHUDQWWKHQLWFDQEHWKHFDXVHRIDEQRUPDOKLJKSUHV-
VXUHLQWKHUHIULJHUDQWOLQHDQGPD\UHVXOWLQDQH[SORVLRQDQGRWKHUKD]DUGV
7KHXVHRIDQ\UHIULJHUDQWRWKHUWKDQWKDWVSHFL¿HGIRUWKHV\VWHPZLOOFDXVH
mechanical failure or system malfunction or unit breakdown. In the worst
case, this could lead to a serious impediment to securing product safety.
ø6.35 mm (1/4 inch), ø9.52 mm (3/8 inch),
ø12.7 mm (1/2 inch) Thickness 0.8 mm (1/32 inch)
ø15.88 (5/8 inch) Thickness 1.0 mm (5/128 inch)
'RQRWXVHSLSHVWKLQQHUWKDQWKRVHVSHFL¿HGDERYH
Permissible
length
(one-way)
Total piping length FEEDDDDDDDDPIW
Farthest piping length (L) *1 FEDPIW
Piping length between outdoor unit and branch boxes FEEPIW
)DUWKHVWEUDQFKER[IURPWKH¿UVWMRLQWE EPIW
Farthest piping length after branch box (l) DPIW
Total piping length between branch boxes and indoor units DDDDDDDDPIW
Permissible
height difference
(one-way)
In indoor/outdoor section (H) *2 +PIW,QFDVHRIRXWGRRUXQLWLVVHWKLJKHUWKDQLQGRRUXQLW
+PIW,QFDVHRIRXWGRRUXQLWLVVHWORZHUWKDQLQGRRUXQLW
In branch box/indoor unit section (h1) KKPIW
In each branch unit (h2) KPIW
In each indoor unit (h3) KPIW
1XPEHURIEHQGV
|
c1 +
b1 + a1 |, |
c1 +
b1 + a2 |, |
c1 +
b1 + a3 |, |
c1 +
b1 + a4 |, |
c1 +
b1 + a5 |, |
c1 +
b2 +
a6 |, |
c1 +
b2 + a7 |, |
c1 +
ED_
7KHSLSLQJVSHFL¿FDWLRQWDEOHGRHVQRWSURYLGHDPLQLPXPOLQHVHWOHQJWK+RZHYHULQGRRUXQLWVZLWKFRQQHFWHGSLSLQJOHQJWKOHVVWKDQIWPFRXOGSURGXFHLQWHUPLW-
tent noise during normal system operation in very quiet environments. Please be aware of this important information when installing and locating the indoor unit within the
conditioned space.
*2 Branch box should be placed within the level between the outdoor unit and indoor units.
L
I
h2
b2
b1
c1
a6a5
a4a3a2
h3
h1
Ha1 a7 a8
Fig. 5-1
Fig. 4-1
7KHWKLFNQHVVHVOLVWHGLQWKHWDEOHDERYHDUHEDVHGRQ-DSDQHVHVWDQG-
DUGV8VHSLSHVZLWKDPD[LPXPZRUNLQJSUHVVXUHRI03D>36,*@
or higher according to local standards.
AOutdoor unit
BBranch box
C Indoor unit
D 7KH¿UVWMRLQW
B
(inch)
AM10 (3/8") bolt
BBase
C As long as possible
DVent
ESet deep in the ground
C
E
D
A
Min. 18-11/16
Min. 1
Max. 1-3/16
23-5/8 23-5/8
8-7/8 8-7/8
13
14-9/16
63/64
41-11/32
7
(1) Valve size for outdoor unit
For liquid ø9.52 mm (3/8 inch)
For gas ø15.88 mm (5/8 inch)
(2) Valve size for branch box
A81,7 Liquid pipe ø6.35 mm (1/4 inch)
Gas pipe ø9.52 mm (3/8 inch)
B81,7 Liquid pipe ø6.35 mm (1/4 inch)
Gas pipe ø9.52 mm (3/8 inch)
C81,7 Liquid pipe ø6.35 mm (1/4 inch)
Gas pipe ø9.52 mm (3/8 inch)
D81,7 Liquid pipe ø6.35 mm (1/4 inch)
Gas pipe ø9.52 mm (3/8 inch)
E81,7 Liquid pipe ø6.35 mm (1/4 inch)
Gas pipe ø12.7 mm (1/2 inch)
* 3-branch type : only A, B, Cunit Conversion formula
1/4 F ø6.35 (1/4)
3/8 F ø9.52 (3/8)
1/2 F ø12.7 (1/2)
5/8 F ø15.88 (5/8)
3/4 F ø19.05 (3/4)
6HOHFWLQJSLSHVL]H)LJ
Conversion formula
AB
Liquid ø9.52 mm
(3/8 inch)
The piping connection size differs according to
the type and capacity of indoor units. Match the
piping connection size of branch box with indoor
unit.
If the piping connection size of branch box does
not match the piping connection size of indoor
unit, use optional different-diameter (deformed)
joints to the branch box side. (Connect deformed
joint directly to the branch box side.)
Gas ø15.88 mm
(5/8 inch)
'LIIHUHQWGLDPHWHUMRLQWRSWLRQDOSDUWV)LJ
Model name Connected pipes diameter Diameter A Diameter B
mm (inch) mm (inch) mm (inch)
MAC-A454JP ¡ĺ¡ ø9.52 (3/8) ø12.7 (1/2)
MAC-A455JP ¡ĺ¡ ø12.7 (1/2) ø9.52 (3/8)
MAC-A456JP ¡ĺ¡ ø12.7 (1/2) ø15.88 (5/8)
PAC-493PI ¡ĺ¡ ø6.35 (1/4) ø9.52 (3/8)
PAC-SG76RJ-E ¡ĺ¡ ø9.52 (3/8) ø15.88 (5/8)
Piping preparation
1 7DEOHEHORZVKRZVWKHVSHFL¿FDWLRQVRISLSHVFRPPHUFLDOO\DYDLODEOH
Outside diameter Insulation thickness Insulation material
mm (inch) mm (inch)
6.35 (1/4) 8 (5/16) Heat resisting foam plastic 0.045
VSHFL¿FJUDYLW\
9.52 (3/8) 8 (5/16)
12.7 (1/2) 8 (5/16)
15.88 (5/8) 8 (5/16)
2Ensure that the 2 refrigerant pipes are insulated to prevent condensation.
3Refrigerant pipe bending radius must be 4” (100 mm) or more.
Caution:
%HVXUHWRXVHWKHLQVXODWLRQRIVSHFL¿HGWKLFNQHVV([FHVVLYHWKLFNQHVVPD\
FDXVH LQFRUUHFW LQVWDOODWLRQ RI WKH LQGRRU XQLW DQG EUDQFK ER[ DQG ODFN RI
thickness may cause dew drippage.
EUDQFKSLSH-RLQW2SWLRQDOSDUWV$FFRUGLQJWRWKHFRQQHFWLRQPHWKRG
you can choose the favorite one.
Model name Connection method
MSDD-50AR-E ÀDUH
MSDD-50BR-E brazing
Ŷ,QVWDOODWLRQSURFHGXUHEUDQFKHVSLSH-RLQW
Refer to the installation manuals of MSDD-50AR-E and MSDD-50BR-E.
A
BB BBB
AA
A
BBBBB
B
A
5. Installing the refrigerant piping
Fig. 5-2
Fig. 5-3
5.3.Additional refrigerant charge
Additional refrigerant charge
Refrigerant for the extended piping is not included in the outdoor unit when the unit is
shipped from the factory. Therefore, charge each refrigerant piping system with addi-
tional refrigerant at the installation site. In addition, in order to carry out service, enter
the size and length of each liquid pipe and additional refrigerant charge amounts in
the spaces provided on the “Refrigerant amount” plate on the outdoor unit.
Calculation of additional refrigerant charge
&DOFXODWHWKHDGGLWLRQDOFKDUJHXVLQJWKHOLTXLGSLSHVL]HDQGOHQJWKRIWKHH[-
tended piping and total capacity of connected indoor units.
&DOFXODWHWKHDGGLWLRQDOUHIULJHUDQWFKDUJHXVLQJWKHSURFHGXUHVKRZQWRWKHULJKW
and charge with the additional refrigerant.
)RUDPRXQWVOHVVWKDQNJURXQGXSWKHFDOFXODWHGDGGLWLRQDOUHIULJHUDQW
charge.
(For example, if the calculated charge is 6.01 kg, round up the charge to 6.1 kg.)
([DPSOH!
2XWGRRUPRGHO 0;=&1$+= $¡ PIW
Indoor 1: model 24 a : ø9.52 15 m (49 ft)
2: model 15 b : ø6.35 10 m (33 ft)
3: model 09 c : ø6.35 10 m (33 ft)
4: model 09 d : ø6.35 20 m (66 ft)
The total length of each liquid line is as follows:
ø9.52 : A + a = 30 + 15 = 45 m (148 ft)
ø6.35 : b + c + d = 10 + 10 + 20 = 40 m (131 ft)
The total capacity of connected indoor unit is as follows:
24 + 15 + 09 + 09 = 57
&DOFXODWLRQH[DPSOH!
Additional refrigerant charge
40 × 19.0 + 45 × 50.0 + 3.0 = 6.1 kg (rounded up)
1000 1000
(131 × 0.21 + 148 × 0.55 + 106 = 215 oz)
<Additional Charge>
Calculation of refrigerant charge
3LSHVL]H
Liquid pipe +
3LSHVL]H
Liquid pipe +
Total capacity of
connected indoor units Amount for the
indoor units
ø6.35 ø9.52 – 27 1.5 kg (53 oz)
PîJP
R]IW
PîJP
R]IW 28 – 54 2.5 kg (88 oz)
55 – 62 3.0 kg (106 oz)
Included refrigerant amount when shipped from the factory
Included refrigerant amount
4.8 kg (10 lbs, 9 oz)
3LSHOHQJWKDQGKHLJKWGLIIHUHQFH)LJ
1)
Flared connections
7KLVXQLWKDVÀDUHGFRQQHFWLRQVRQHDFKLQGRRUXQLWDQGEUDQFKER[DQGRXWGRRU
unit sides.
5HPRYHWKHYDOYHFRYHURIWKHRXWGRRUXQLWWKHQFRQQHFWWKHSLSH
5HIULJHUDQWSLSHVDUHXVHGWRFRQQHFWWKHEUDQFKER[DQGRXWGRRUXQLW
At the conditions
below:
Ŷ,QFDVHRIXVLQJEUDQFKER[HV
Ŷ,QFDVHRIXVLQJEUDQFKER[
)ODUHFRQQHFWLRQHPSOR\HG1REUD]LQJ
Branch box
Branch box #1
Branch box #2
2 branches pipe (joint)
: optional parts.
8
5. Installing the refrigerant piping
Warning:
When pumping down the refrigerant, stop the compressor before disconnect-
ing the refrigerant pipes. The compressor may burst and cause injury if any
foreign substance, such as air, enters the system.
&RQQHFWLQJSLSHV)LJ)LJ
&RQGXFWVXI¿FLHQWDQWLFRQGHQVDWLRQDQGLQVXODWLRQZRUNWRSUHYHQWZDWHUGULS-
ping from the refrigerant piping. (liquid pipe/gas pipe)
,QFUHDVHLQVXODWLRQGHSHQGLQJRQWKHHQYLURQPHQWZKHUHWKHUHIULJHUDQWSLSLQJLV
installed, or condensation may occur on the surface of the insulation material.
(Insulation material Heat-resistant temperature: 120 °C, 248 °F, Thickness:
15 mm, 5/8 inch or more)
* When the refrigerant piping is used in locations subject to high tempera-
ture and humidity such as in the attic, further addition of insulation may be
required.
7RLQVXODWHWKHUHIULJHUDQWSLSLQJDSSO\KHDWUHVLVWDQWSRO\HWK\OHQHIRDPEHWZHHQ
the indoor unit and insulation material as well as to the net between the insulation
PDWHULDO¿OOLQJDOOJDSV
(Condensation forming on the piping may result in condensation in the room or
burns when contacting the piping.)
7KHLQGRRUSDUWVRIWKHGUDLQSLSHVKRXOGEHZUDSSHGZLWKSRO\HWK\OHQHIRDPLQVX-
ODWLRQPDWHULDOVVSHFL¿FJUDYLW\RIWKLFNQHVVRIPPLQFKRUPRUH
[Fig. 5-5]
$SSO\WKLQOD\HURIUHIULJHUDQWRLOWRSLSHDQGMRLQWVHDWLQJVXUIDFHEHIRUHWLJKWHQLQJ
ÀDUHQXW A
8VHZUHQFKHVWRWLJKWHQSLSLQJFRQQHFWLRQVB
8VH OHDN GHWHFWRU RU VRDS\ ZDWHU WR FKHFN IRU JDV OHDNV DIWHU FRQQHFWLRQV DUH
completed.
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8VHWKHÀDUHQXWVDVIROORZVD
Warning:
When installing the unit, securely connect the refrigerant pipes before starting
the compressor.
Ŷ3LSHVL]H2XWGRRUXQLW%UDQFKER[
Pipe size
(ømm) (inch)
Liquid ø9.52 (3/8)
Gas
ø15.88 (5/8)
Ŷ
3LSHVL]H%UDQFKER[,QGRRUXQLW&DVHRI0VHULHVRU6VHULHV,QGRRUXQLW
Indoor unit type (BTU/h) 06 09 12 15 18 24
Pipe size
(ømm) (inch)
Liquid ø6.35
(1/4) ø6.35
(1/4) ø6.35
(1/4) ø6.35
(1/4) ø6.35
(1/4) ø9.52
(3/8)
Gas ø9.52
(3/8) ø9.52
(3/8) ø9.52
(3/8) ø12.7
(1/2) ø12.7
(1/2) ø15.88
(5/8)
Ŷ3LSHVL]H%UDQFKER[,QGRRUXQLW&DVHRI3VHULHVLQGRRUXQLW
Indoor unit type (BTU/h) 12 18 24 30 36
Pipe size
(ømm) (inch)
Liquid ø6.35
(1/4) ø6.35
(1/4) ø9.52
(3/8) ø9.52
(3/8) ø9.52
(3/8)
Gas ø12.7
(1/2) ø12.7
(1/2) ø15.88
(5/8) ø15.88
(5/8) ø15.88
(5/8)
:KHQEHQGLQJWKHSLSHVEHFDUHIXOQRWWR EUHDN WKHP %HQG UDGLXV RIPP
LQFKWRPPLQFKDUHVXI¿FLHQW
0DNHVXUHWKHSLSHVGRQRWFRQWDFWWKHFRPSUHVVRU$EQRUPDOQRLVHRUYLEUDWLRQ
may result.
1Pipes must be connected starting from the indoor unit.
Flare nuts must be tightened with a torque wrench.
2Flare the liquid pipes and gas pipes and apply a thin layer of refrigeration oil (Ap-
plied on site).
:KHQXVXDOSLSHVHDOLQJLVXVHGUHIHUWR7DEOHIRUÀDULQJRI5$UHIULJHUDQW
pipes.
7KHVL]HDGMXVWPHQWJDXJHFDQEHXVHGWRFRQ¿UP$PHDVXUHPHQWV
Caution:
%HVXUHWRZUDSLQVXODWLRQDURXQGWKHSLSLQJ'LUHFWFRQWDFWZLWKWKHEDUH
piping may result in burns or frostbite.
7DEOH)LJ) mm (inch)
Copper pipe O.D.
A
Flare tool for R410A Flare tool for R22·R407C
Clutch type
ø6.35 (1/4) 0 - 0.5 (0 - 1/64) 1.0 - 1.5 (3/64 - 1/16)
ø9.52 (3/8) 0 - 0.5 (0 - 1/64) 1.0 - 1.5 (3/64 - 1/16)
ø12.7 (1/2) 0 - 0.5 (0 - 1/64) 1.0 - 1.5 (3/64 - 1/16)
ø15.88 (5/8) 0 - 0.5 (0 - 1/64) 1.0 - 1.5 (3/64 - 1/16)
The lineup of a connectable indoor unit
depends on a district/areas/country.
A(Fig. 5-5)
Copper pipe O.D.
(mm) (inch) Flare dimensions
øA dimensions (mm) (inch)
ø6.35 (1/4) 8.7 - 9.1 (5/16 - 3/8)
ø9.52 (3/8) 12.8 - 13.2 (1/2)
ø12.7 (1/2) 16.2 - 16.6 (5/8)
ø15.88 (5/8) 19.3 - 19.7 (3/4)
Copper pipe O.D.
(mm) (inch) Flare nut O.D.
(mm) (inch) Tightening torque
1āPIWāOE
ø6.35 (1/4) 17 (11/16) 14 - 18 (10 - 13)
ø6.35 (1/4) 22 (7/8) 34 - 42 (25 - 30)
ø9.52 (3/8) 22 (7/8) 34 - 42 (25 - 30)
ø9.52 (3/8) 26 (1-1/4) 49 - 61 (35-44)
ø12.7 (1/2) 26 (1-1/4) 49 - 61 (35-44)
ø12.7 (1/2) 29 (1-1/8) 68 - 82 (49 - 59)
ø15.88 (5/8) 29 (1-1/8) 68 - 82 (49 - 59)
ø15.88 (5/8) 36 (1-7/16) 100 - 120 (71 - 87)
1āP 10 kgf·cm
ALiquid pipe
BGas pipe
CInsulation
DTaping
Fig. 5-4
Fig. 5-5
Fig. 5-6
AFlare cutting dimensions
BFlare nut tightening torque
90° ± 0.5°
ADie
BCopper pipe
A
øA
R1/64” to R1/32”
45°± 2°
9
5HIULJHUDQWSLSLQJ)LJ
Remove the service panel D(3 screws) and the front piping cover A(2 screws) and
rear piping cover B(4 screws).
1Perform refrigerant piping connections for the indoor/outdoor unit when the
outdoor unit’s stop valve is completely closed.
2Vacuum-purge air from the indoor unit and the connection piping.
Evacuation
Evacuate with the valve of the outdoor unit closed and evacuate both the connec-
tion piping and the indoor unit from the service port provided on the valve of the
outdoor unit using a vacuum pump. (Always evacuate from the service port of both
liquid pipe and gas pipe.) After the vacuum reaches 650 Pa [abs] [0.0943 psi/5
Torr], continue evacuation for at least one hour or more. Then, stop the vacuum
pump and leave it for 1 hour. Ensure the degree of vacuum has not increased. ,I
WKHGHJUHHRIYDFXXPLQFUHDVHLVODUJHUWKDQ3D>36,*7RUU@
ZDWHUPLJKWKDYHHQWHUHG$SSO\SUHVVXUHWRGU\QLWURJHQJDVXSWR03D
>36,*@DQGYDFXXPDJDLQ Finally, seal in with the liquid refrigerant through
the liquid pipe, and adjust the gas piping to obtain an appropriate amount of the
refrigerant during operation.
1HYHUSHUIRUPDLUSXUJLQJXVLQJUHIULJHUDQW
3After connecting the refrigerant pipes, check the connected pipes and the
indoor unit for gas leaks. (Refer to 5.8. Refrigerant pipe airtight testing method)
4Vacuumize the refrigerant lines through the service port of the liquid and gas
stop valves. And then open the stop valves completely (for both the liquid and
gas stop valves). This will completely connect the refrigerant lines of the indoor
and outdoor units.
,IWKHVWRSYDOYHVDUHOHIWFORVHGDQGWKHXQLWLVRSHUDWHGWKHFRPSUHVVRU
and control valves will be damaged.
8VHDOHDNGHWHFWRURUVRDS\ZDWHUWRFKHFNIRUJDVOHDNVDWWKHSLSHFRQ-
nection sections of the outdoor unit.
'RQRWXVHWKHUHIULJHUDQWIURPWKHXQLWWRSXUJHDLUIURPWKHUHIULJHUDQW
lines.
$IWHUWKHYDOYHZRUNLVFRPSOHWHGWLJKWHQWKHYDOYHFDSVWRWKHFRUUHFW
WRUTXHWR1āP>WRIWāOEV@WRNJIāFP
Failure to replace and tighten the caps may result in refrigerant leakage. In
addition, do not damage the insides of the valve caps as they act as a seal
to prevent refrigerant leakage.
5Use sealant to seal the ends of the thermal insulation around the pipe connec-
tion sections to prevent water from entering the thermal insulation.
Refrigerant pipes are protectively wrapped
7KHSLSHVFDQEHSURWHFWLYHO\ZUDSSHGXSWRDGLDPHWHURI¡PP´EHIRUH
or after connecting the pipes. Cut out the knockout in the pipe cover following the
groove and wrap the pipes.
Pipe inlet gap
8VHSXWW\RUVHDODQWWRVHDOWKHSLSHLQOHWDURXQGWKHSLSHVVRWKDWQRJDSVUHPDLQ
(If the gaps are not closed, noise may be emitted or water and dust will enter the
unit and breakdown may result.)
Note:
<Triple Evacuation>
(YDFXDWHWKHV\VWHPWRPLFURQVIURPERWKVHUYLFHYDOYHV6\VWHP
manifold gauges must not be used to measure vacuum. A micron gauge
must be used at all times.
-
%UHDNWKHYDFXXPZLWK1LWURJHQ1LQWRWKHGLVFKDUJHVHUYLFHYDOYHWR36,*
(YDFXDWHWKHV\VWHPWRPLFURQVIURPWKHVXFWLRQVHUYLFHYDOYH
-
%UHDNWKHYDFXXPZLWK1LWURJHQ1LQWRWKHGLVFKDUJHVHUYLFHYDOYHWR36,*
(YDFXDWHWKHV\VWHPWRPLFURQV6\VWHPPXVWKROGWKHYDFXXPDW
microns for a minimum of 1 hour.
&RQGXFWDULVHWHVWIRUDPLQLPXPRIPLQXWHV
&DXWLRQIRUSLSLQJFRQQHFWLRQYDOYHRSHUDWLRQ
&RQGXFWSLSLQJFRQQHFWLRQDQGYDOYHRSHUDWLRQDFFXUDWHO\E\IROORZLQJWKH¿JXUH
below.
$SSO\VHDOHUDORQJ WKH LQVXODWRUWRSUHYHQW ZDWHU HQWHULQJWKHLQVXODWRU FRYHULQJ
the refrigerant pipe joints.
$IWHU HYDFXDWLRQ DQG UHIULJHUDQW FKDUJH HQVXUH WKDW WKH KDQGOH LV IXOO\ RSHQ ,I
operating with the valve closed, abnormal pressure will be imparted to the high- or
low-pressure side of the refrigerant circuit, giving damage to the compressor, etc.
Determine the amount of additional refrigerant charge (refer “5.3. Addition of refrig-
erant”), and charge refrigerant additionally through the service port after complet-
ing piping connection work.
$IWHUFRPSOHWLQJZRUNWLJKWHQWKHVHUYLFHSRUW1āP>IWāOEV@DQGFDS
1āP>IWāOEV@VHFXUHO\WRSUHYHQWJDVOHDN
1āP 10 kgf·cm
Method of completely opening the stop valve
The stop valve opening method varies according to the outdoor unit model. Use the
appropriate method to open the stop valves.
(1) Gas side (Fig. 5-8)
1Remove the cap, pull the handle toward you and rotate 1/4 turn in a counterclock-
wise direction to open.
2Make sure that the stop valve is open completely, push in the handle and rotate
the cap back to its original position.
(2) Liquid side (Fig. 5-9)
1Remove the cap and turn the valve rod counterclockwise as far as it will go with
the use of a 4 mm [3/16”] hexagonal wrench. Stop turning when it hits the stopper.
2Make sure that the stop valve is open completely and rotate the cap back to its
original position.
5. Installing the refrigerant piping
)LJ
Fig. 5-8
Fig. 5-9
AValve FCompletely closed
BUnit side GCompletely open
CService port HRefrigerant piping side (On-site installation)
DHandle I'LUHFWLRQWKHUHIULJHUDQWÀRZVLQ
ECap JWrench hole
AFront piping cover
BPiping cover
CStop valve
D Service panel
E%HQGUDGLXVPP±PPƎ±Ǝ
B
C
EA
D
(1)
(2)
10
6. Drainage piping work
5. Installing the refrigerant piping
3UHFDXWLRQVZKHQXVLQJWKHFKDUJHYDOYH)LJ
Do not tighten the service port too much when installing it, otherwise, the valve core
could be deformed and become loose, causing a gas leak.
After positioning section Bin the desired direction, turn section Aonly and tighten it.
Do not further tighten sections Aand Btogether after tightening section A.
Outdoor unit drainage pipe connection
When drain piping is necessary, use the drain socket or the drain pan (option).
Drain socket PAC-SG61DS-E
Drain pan PAC-SH97DP-E
(OHFWULFDOZRUN
* Thefigure to the left isanexample only.
The stop valve shape, service port po-
sition, etc., may vary according to the
model.
* Turn section only.
(Do not further tighten sections and
together.)
Charge hose
Service port
LO HI
Fig. 5-11
5.8. Refrigerant pipe airtight testing method.
$LUWLJKWWHVW)LJ
Airtight test should be made by pressurizing nitrogen gas. For the test method, refer
WRWKHIROORZLQJ¿JXUH
(1) Connecting the testing tool. Make a test with the stop valve closed. Be also sure
to pressurize both liquid or high-pressure pipe and gas or low pressure pipe.
'RQRWDGGSUHVVXUHWRWKHVSHFL¿HGSUHVVXUHDOODWRQFHDGGSUHVVXUHOLWWOHE\
little.
1Pressurize to 0.5 MPa [73 PSIG], wait 5 minutes, and make sure the pressure
does not decrease.
2Pressurize to 1.5 MPa [218 PSIG], wait 5 minutes, and make sure the pressure
does not decrease.
3 Pressurize to 4.15 MPa [601 PSIG] and measure the surrounding temperature
and refrigerant pressure.
,I WKH VSHFL¿HG SUHVVXUH KROGV IRU DERXW RQH GD\ DQG GRHV QRW GHFUHDVH WKH
pipes have passed the test and there are no leaks.
,IWKHVXUURXQGLQJWHPSHUDWXUHFKDQJHVE\&>)@WKHSUHVVXUHZLOOFKDQJH
by about 0.01 MPa [1.5 PSIG]. Make the necessary corrections.
(4) If the pressure decreases in steps (2) or (3), there is a gas leak. Look for the
source of the gas leak.
A1LWURJHQJDV FOutdoor unit
BSystem analyzer GStop valve
CLo-knob HLiquid pipe or high-pressure pipe
DHi-knob IGas pipe or low-pressure pipe
ETo branch box KService port
Warning:
:KHQLQVWDOOLQJWKHXQLWVHFXUHO\FRQQHFWWKHUHIULJHUDQWSLSHVEHIRUH
starting the compressor.
)LJ
&DXWLRQ
1Follow ordinance of your governmental organization for technical standard
related to electrical equipment, wiring regulations and guidance of each electric
power company.
2Wiring for control (hereinafter referred to as transmission line) shall be (5 cm
>LQFK@RUPRUHDSDUWIURPSRZHUVRXUFHZLULQJVRWKDWLWLVQRWLQÀXHQFHGE\
electric noise from power source wiring. (Do not insert transmission line and
power source wire in the same conduit.)
3Be sure to provide designated grounding work to outdoor unit.
4Give some allowance to wiring for electrical part box of indoor and outdoor
units, because the box is sometimes removed at the time of service work.
5 1HYHUFRQQHFWWKHPDLQSRZHUVRXUFHWRWHUPLQDOEORFNRIWUDQVPLVVLRQOLQH,I
connected, electrical parts will be burnt out.
6Use 2-core shield cable for transmission line. If transmission lines of different
systems are wired with the same multiplecore cable, the resultant poor trans-
mitting and receiving will cause erroneous operations.
7 2QO\WKHWUDQVPLVVLRQOLQHVSHFL¿HGVKRXOGEHFRQQHFWHGWRWKHWHUPLQDOEORFN
for outdoor unit transmission.
(Transmission line to be connected with indoor unit : Terminal block TB3 for
transmission line, Other : Terminal block TB7 for centralized control)
Erroneous connection does not allow the system to operate.
8In case to connect with the upper class controller or to conduct group operation
in different refrigerant systems, the control line for transmission is required
between the outdoor units each other.
Connect this control line between the terminal blocks for centralized control.
(2-wire line with no polarity)
When conducting group operation in different refrigerant systems without con-
necting to the upper class controller, replace the insertion of the short circuit
FRQQHFWRUIURP&1RIRQHRXWGRRUXQLWWR&1
9Before turning outdoor unit on, be sure to turn the indoor units and the branch
boxes.
11
OC
BC BC
MA-RC
A-IC
Note:
The indoor units can be connected
to any of the 5 connectors (5-branch
type) or 3 connectors (3-branch type)
of the branch box.
A-IC A-IC A-IC A-IC A-IC A-IC A-IC
MA-RC WL-RC WL-RC WL-RC WL-RC WL-RC WL-RC
OC
BC BC
MA-RC
A-IC A-IC A-IC A-IC A-IC
MA-RC WL-RC WL-RC WL-RC
ABCDEABC ABCDEABC
(OHFWULFDOZRUN
:LULQJWUDQVPLVVLRQFDEOHV
1Types of control cables
1. Wiring transmission cables
7\SHVRIWUDQVPLVVLRQFDEOHV6KLHOGLQJZLUH&996RU&3(96RU0996
&DEOHGLDPHWHU0RUHWKDQPPð>$:*@
0D[LPXPZLULQJOHQJWK:LWKLQP>IW@
01(75HPRWHFRQWUROFDEOHV
Kind of remote control cable Shielding wire (2-core) CVVS, CPEVS or MVVS.
Cable diameter 0.5 to 1.25 mm2 [AWG 20 toAWG 16]*
Remarks When 10 m[32 ft] is exceeded, use cable with
WKHVDPHVSHFL¿FDWLRQVDVWUDQVPLVVLRQOLQH
wiring.
* Connected with simple remote controller.
M1
S
M2
DA
E
M1
S
M2
TB3TB1 TB7
F
B1 B2
TB1B
C
B
L1
L2
GR
A:Power source
B:Power supply for branch box
C:Screw on the electrical component box
D:Transmission line
&RQWUROER[DQGFRQQHFWLQJSRVLWLRQRIZLULQJ
)LJ
1. Connect the branch box transmission line to transmission terminal block (TB3),
or connect the wiring between outdoor units or the wiring with the centralized
control system to the centralized control terminal block (TB7).
When using shielded wiring, connect shield ground of the branch box transmis-
sion line to the screw (Eor F) and connect shield ground of the line between
outdoor units and the central control system transmission line to the shield (S)
terminal of the centralized control terminal block (TB7) shield (S) terminal. In
DGGLWLRQLQWKHFDVHRIRXWGRRUXQLWVZKRVHSRZHUVXSSO\FRQQHFWRU&1KDV
EHHQUHSODFHGE\&1WKHVKLHOGWHUPLQDO6RIWHUPLQDOEORFN7%RIWKH
centralized control system should also be connected to the screw (Eor F)using
attached lead wire.
2. Conduit mounting plates (ø27) are being provided. Pass the power supply and
transmission wires through the appropriate knock-out holes, then remove the
knock-out piece from the bottom of the terminal box and connect the wires.
3. Fix power source wiring to terminal box by using buffer bushing for tensile force
(PG connection or the like).
4. The terminal bed (TB1B) is for supplying power to the branch box (220 ~ 240 V.
max 6A).
Caution:
1HYHUFRQQHFWWKHWUDQVPLVVLRQOLQHIRUWKHEUDQFKER[RUWKHFHQWUDOFRQWURO
V\VWHPWUDQVPLVVLRQOLQHWRWKLVWHUPLQDOEHG7%%,IWKHWUDQVPLVVLRQ
OLQHVDUHFRQQHFWHGWKHLQGRRUXQLWWHUPLQDOEORFNEUDQFKER[WHUPLQDO
EORFNRUFHQWUDOL]HGFRQWUROWHUPLQDOEORFNFRXOGEHGDPDJHG
)LJ
E:Screw on the electrical component box
F:Screw on the electrical component box
&21'8,73/$7(
accessory
ø24 knock-out hole
(For transmission wires)
ø37 knock-out hole
(For power supply wires)
3. MA Remote control cables
Kind of remote control cable Sheathed 2-core cable (unshielded) CVV
Cable diameter WRPPð>$:*WR$:*@WR
PPð>$:*WR$:*@
Remarks Within 200 m [656 ft]
*Connected with simple remote controller.
>@6WDQGDUGV\VWHPV
2-1. Only 3-branch type 2-2. Only 5-branch type 2-3. 2-branch boxes (3-branch type)
OC
BC
A-IC A-IC A-IC
WL-RC
WL-RC WL-RC
ABC
OC
BC
A-IC A-IC A-IC
WL-RC WL-RC WL-RC
A-IC A-IC
WL-RC WL-RC
ABCDE
OC
BC BC
A-IC A-IC A-IC A-IC A-IC A-IC
WL-RC WL-RC WL-RC WL-RC WL-RC WL-RC
ABC ABC
(3-branch type) (5-branch type) (3-branch type) (3-branch type)
(5-branch type) (3-branch type) (5-branch type) (3-branch type)
2:LULQJH[DPSOHV
>@%DVLFV\VWHPV
OC: Outdoor unit
BC: Branch box
A-IC: A-Control indoor unit (M, P, S series indoor unit)
MA-RC: MA remote controller
WL-RC: Wireless remote controller
12
(OHFWULFDOZRUN
NO
CO
BC
A-IC A-IC A-IC
WL-RC
M-IC
WL-RC
A-IC A-IC
WL-RC WL-RC WL-RC WL-RC
ABCDE
(5-branch type)
3-3.Connection of indoor units of CITY
MULTI series.
OC
BC
ABCDE BC
ABCDE
NO
A-IC A-IC A-IC A-ICA-IC A-IC A-IC A-IC A-ICA-IC
WL-RC WL-RC WL-RC WL-RCWL-RC WL-RC WL-RC WL-RC WL-RCWL-RC
2-4. 2 branch boxes (5-branch type, maximum 8 indoor units)
1. Up to 2 branch boxes can be connected to a single outdoor unit.
2. Up to 8 indoor units can be connected to the system.
>@,QFRUUHFWV\VWHPV
COCO
BC
ABC BC
ABC
NO
A-IC A-IC A-IC
WL-RC
MA-RC
3-1.Group operation by single
remote controller 3-2.Group operation between different
refrigerant systems
3-1.Plural indoor units cannot be operated by a single remote controller.
3-2.Different refrigerant systems cannot be connected together.
3-3.Indoor units of CITY MULTI series cannot be connected to the branch boxes or
outdoor unit.
01(75HPRWHFRQWUROOHUFDQQRWEHFRQQHFWHGWRWKLVV\VWHP
(5-branch type) (5-branch type)
(3-branch type) (3-branch type)
NO
CO
BC
A-IC A-IC A-IC
WL-RC
ME-RC
A-IC A-IC
WL-RC WL-RC WL-RC WL-RC
ABCDE
&RQQHFWLRQRI01(75HPRWHFRQWUROOHU
(5-branch type)
* CITY
MULTI
OC: Outdoor unit
BC: Branch box
A-IC: A-Control indoor unit (M, P, S series indoor unit)
0,& 01(7&RQWUROLQGRRUXQLW&LW\0XOWLLQGRRUXQLW
MA-RC: MA remote controller
ME-RC: ME remote controller
WL-RC: Wireless remote controller
CO
BC
ABC
MA-RC
NO
A-IC A-IC A-IC
WL-RC
(3-branch type)
13
(OHFWULFDOZRUN
:LULQJRIPDLQSRZHUVXSSO\DQGHTXLSPHQWFDSDFLW\
6FKHPDWLF'UDZLQJRI:LULQJ([DPSOH)LJ
ASwitch (Breakers for Wiring and Current Leakage)
BOutdoor Unit
CBranch Box
DA-Control indoor unit (M, P, S, series indoor unit)
EPull Box
)LJ
TB7
TB3
(51)
L3
L1
OC
TB7
(53)
OC
DC24V
Power Supply
Unit
System
controller
L4
L5
M1M2
S
M1M2
S
S
M1M2
S
TB3
M1M2
S
M1M2
S
M1M2
TB3A A-IC
(01)
A-IC
(02)
A-IC
(03)
A-IC
(04)
A-IC
MA-RC
MA-RC
MA-RC
WL-RC
(05)
A-IC
(06)
A-IC
(07)
A-IC
(08)
S1
S2
S3
TB
S1
S2
TB5/TB15
1
2A
B
A
B
A
B
A
B
TB5/TB15
1
2
TB5/TB15
1
2
TB5/TB15
1
2
S3
TB
S1
S2
S3
TB
S1
S2
S3
TB
S1
S2
S3
TB
S1
S2
S3
TB
S1
S2
S3
TB
S1
S2
S3
TB
S1
S2
S3
TB3B
S1
S2
S3
TB3C
S1
S2
S3
TB3D
S1
S2
S3
TB3E
S1
S2
S3
TB3A
S1
S2
S3
TB3B
S1
S2
S3
TB3C
S1
S2
S3
M1
M2
S
TB5
M1
M2
S
TB5
L
(01)
(06)
2
Branch Box
A
A
Branch Box
WL-RC
MA-RC
WL-RC
WL-RC
)LJ
L1/L2
S1/S2/S3
S1/S2/S3
S1/S2/S3
L1/L2
S1/S2/S3
S1/S2/S3
S1/ S2/ S3
A
C
E
D
C
D
D
D
D
B1/B2
GR S1/S2/S3
S1/S2/S3
S1/S2/S3
L1/L2
L1/L2
S1/S2/S3
S1/S2/S3
S1/S2/S3
L1/L2 D
D
D
D
D
C
C
B
A
208/230 VAC, 60 Hz L1/L2
GR
:KHQ3RZHU,V6XSSOLHG6HSDUDWHO\!
208/230 VAC, 60 Hz
208/230 VAC, 60 Hz
:KHQ3RZHU,V6XSSOLHGIURPWKH2XWGRRU8QLW!
IMPORTANT
Make sure that the current leakage breaker is one compatible with higher
harmonics.
Always use a current leakage breaker that is compatible with higher harmon-
ics as this unit is equipped with an inverter.
The use of an inadequate breaker can cause the incorrect operation of inverter.
Longest length via outdoor units:
L1/2/3/4/5PIWPP2>$:*@RUPRUH
Longest transmission cable length
L1/2, L3 /4, L5PIWPP2>$:*@RUPRUH
A: Shielded wire
( ) : Address example
%UDQFKER[RXWGRRUZLUHFRQQHFWLRQDQGRXWGRRUSRZHUVXSSO\FRUGFRQQHFWLRQ)LJ
Warning:
%HVXUHWRDWWDFKWKHWHUPLQDOEORFNFRYHUVSDQHORIWKHRXWGRRUXQLWVHFXUHO\,ILWLVQRWDWWDFKHGFRUUHFWO\LWFRXOGUHVXOWLQD¿UHRUDQHOHFWULFVKRFNGXHWR
dust, water, etc.
%HVXUHWRFRQQHFWWKHSRZHUVXSSO\FRUGVDQGWKHFRQQHFWLQJZLUHVIRUWKHLQGRRUXQLWVRXWGRRUXQLWVDQGEUDQFKER[HVGLUHFWO\WRWKHXQLWVQRLQWHUPHGLDWH
connections).
,QWHUPHGLDWHFRQQHFWLRQVFDQOHDGWRFRPPXQLFDWLRQHUURUVLIZDWHUHQWHUVWKHFRUGVRUZLUHVDQGFDXVHVLQVXI¿FLHQWLQVXODWLRQWRJURXQGRUDSRRUHOHFWULFDO
contact at the intermediate connection point.
,IDQLQWHUPHGLDWHFRQQHFWLRQLVQHFHVVDU\EHVXUHWRWDNHPHDVXUHVWRSUHYHQWZDWHUIURPHQWHULQJWKHFRUGVDQGZLUHV
Caution:
%HFDUHIXOQRWWRPDNHPLVZLULQJ
)LUPO\WLJKWHQWKHWHUPLQDOVFUHZVWRSUHYHQWWKHPIURPORRVHQLQJ
$IWHUWLJKWHQLQJSXOOWKHZLUHVOLJKWO\WRFRQ¿UPWKDWWKH\QRWPRYH
,IWKHFRQQHFWLQJZLUHLVLQFRUUHFWO\FRQQHFWHGWRWKHWHUPLQDOEORFNWKHXQLWGRHVQRWRSHUDWHQRUPDOO\
&RQQHFWZLUHIURPWKHEUDQFKER[FRUUHFWO\WRWKHWHUPLQDOEORFN
)RUIXWXUHVHUYLFLQJJLYHH[WUDOHQJWKWRFRQQHFWLQJZLUH
Terminal
block
Loosen terminal screw.
Lead wire
Connection details
14
Warning:
Please turn offthe main power supplywhen servicing.And do not touchthe B1, B2
WHUPLQDOVZKHQWKHSRZHULVHQHUJL]HG,ILVRODWRUVKRXOGEHXVHGEHWZHHQRXWGRRU
XQLWDQGEUDQFKER[LQGRRUXQLWDQGEUDQFKER[SOHDVHXVHSROHW\SHRUSROHW\SH
3OHDVHUHIHUWR¿JXUHEHORZ
7XUQRQWKHPDLQSRZHUZKHQWKHDPELHQWWHPSHUDWXUHLV&)RUKLJKHU
8QGHUFRQGLWLRQVRI&)LWQHHGVDWOHDVWKUVWDQGE\EHIRUHWKHXQLWV
operate in order to warm the electrical parts.
Caution:
After using the isolator, be sure to turn off and on the main power supply to reset the system. Otherwise, the outdoor unit may not be able to detect the branch
ER[HVRULQGRRUXQLWV
Be sure to connect the outdoor-branch box/indoor-branch box connecting cables directly to the units (no intermediate connections).
,QWHUPHGLDWHFRQQHFWLRQVFDQOHDGWRFRPPXQLFDWLRQHUURUVLIZDWHUHQWHUVWKHFDEOHVDQGFDXVHVLQVXI¿FLHQWLQVXODWLRQWRJURXQGRUDSRRUHOHFWULFDOFRQWDFWDWWKHLQWHUPHGLDWHFRQQHFWLRQSRLQW
(If an intermediate connection is necessary, be sure to take measures to prevent water from entering the cables.)
1HYHUVSOLFHWKHSRZHUFDEOHRUWKHLQGRRURXWGRRUEUDQFKER[FRQQHFWLRQFDEOHRWKHUZLVHLWPD\UHVXOWLQDVPRNHD¿UHRUFRPPXQLFDWLRQIDLOXUH
B1
B2
L1
L2
GR
Outdoor unit
2 poles isolator (Switch)
Branch box
(OHFWULFDOZRUN
Indoor unit V1 V2
Type 1 PEAD-A·AA, MVZ-A·AA 26.9
2.4
Type 2 3/$$ā%$3/$$ā($6(=.'ā1$ 19.8
Type 3 0)=.$ā1$ 16.2
Type 4 06=)(ā1$ 9.9
Type 5 0)=.-ā1$06=*/ā1$ 7.4
Type 6 06=)+ā1$06=)+ā1$06=()ā1$:%6806=*(ā1$ 6.8
Type 7 6/=.$ā1$ 3.5
Type 8 Branch box (PAC-MK·BC(B)) 5.1 3.0
C : Multiple of tripping current at tripping time 0.01 s
Please pick up "C" from the tripping characteristic of the breaker.
([DPSOHRI)FDOFXODWLRQ!
&RQGLWLRQ%UDQFK%R[î6(=.'Â1$î& UHIHUWRULJKWVDPSOHFKDUW
F2 = 5.1 × 2/8 + 19.8 × 5/8
= 13.65
*3 Current sensitivity is calculated using the following formula.
G1 = V2 × Quantity of Type 1 + V2 × Quantity of Type 2 + · · · + V2 × Quantity of Type 8 + V3 (Wire length [kW])
G1 Current sensitivity
30 or less 30 mA 0.1 sec or less
100 or less 100 mA 0.1 sec or less
Wire thickness V3
1.5 mm248
2.5 mm256
4.0 mm266
6000
600
60
10
1
123468
C
10 20
SAMPLE
Sample chart
Rated Tripping current (x)
Tripping Time [s]
0.1
0.01
Thickness of Wire for Main Power Supply and On/Off Capacities
Model Power Supply Minimum Wire Thickness
(mm2[AWG]) Breaker for
Wiring*1 Breaker for Current
Leakage Minimum cir-
cuit ampacity
Maximum rating of
over current protec-
tor device
Main Cable*2 Ground
Outdoor Unit
4C36/5C52/
&1$+= 208/230 VAC, 60Hz 13.3 [AWG6] 13.3 [AWG6] 50 A 50 A 30 mA 0.1 sec.
or less 42 A 52 A
&1$ 8.4 [AWG8] 8.4 [AWG8] 40 A 40 A 30 mA 0.1 sec.
or less 37 A 52 A
Indoor Unit 208/230 VAC, 60Hz Refer to installation manual of indoor unit.
*1. Be sure to ground the unit correctly. If required, take measures against leakage.
8VHFRSSHUVXSSO\ZLUHV8VHWKHHOHFWULFZLUHVRYHUWKHUDWLQJYROWDJH9
Total operating current of the indoor unit Minimum wire thickness (mm2/AWG) Ground-fault interruper *1 Local switch (A) Breaker for wiring
1)%
Main Cable Branch Ground Capacity Fuse
F0 = 15A or less *2 2.1/14 2.1/14 2.1/14 15 A current sensitivity *3 15 15 15
F0 = 20A or less *2 3.3/12 3.3/12 3.3/12 20 A current sensitivity *3 20 20 20
F0 = 30A or less *2 5.5/10 5.5/10 5.3/10 30 A current sensitivity *3 30 30 30
Apply to IEC61000-3-3 about max. permissive system impedance.
*1 The Ground-fault interrupter should support inverter circuit.
The Ground-fault interrupter should combine using of local switch or wiring breaker.
*2 Please take the larger of F1 or F2 as the value for F0.
F1 = Total operating maximum current of the indoor units × 1.2
F2 = {V1 × (Quantity of Type 1)/C} + {V1 × (Quantity of Type 2)/C} + · · · + {V1 × (Quantity of Type 8)/C}
1. Use a separate power supply for the outdoor unit and indoor unit.
%HDULQPLQGDPELHQWFRQGLWLRQVDPELHQWWHPSHUDWXUHGLUHFWVXQOLJKWUDLQZDWHUHWFZKHQSURFHHGLQJZLWKWKHZLULQJDQGFRQQHFWLRQV
7KHZLUHVL]HLVWKHPLQLPXPYDOXHIRUPHWDOFRQGXLWZLULQJ7KHSRZHUFRUGVL]HVKRXOGEHUDQNWKLFNHUFRQVLGHUDWLRQRIYROWDJHGURSV
0DNHVXUHWKHSRZHUVXSSO\YROWDJHGRHVQRWGURSPRUHWKDQ
6SHFL¿FZLULQJUHTXLUHPHQWVVKRXOGDGKHUHWRWKHZLULQJUHJXODWLRQVRIWKHUHJLRQ
3RZHUVXSSO\FRUGVRISDUWVRIDSSOLDQFHVIRURXWGRRUXVHVKDOOQRWEHOLJKWHUWKDQSRO\FKORURSUHQHVKHDWKHGÀH[LEOHFRUGGHVLJQ,(&)RUH[DP-
ple, use wiring such as YZW.
6. Install an earth longer than other cables.
15
(OHFWULFDOZRUN
$GGUHVVVHWWLQJ
Switch address setting
Unit
Address
Outdoor Branch Box Indoor
Address Connection Setting
Switch
Port A B C D E –
21
OFF123456
*
21 ,QGRRUFRQQHFW
2))1RFRQQHFWLRQ
1RQH
SWU2 SWU1 SW12 SW11 SW1 *SW1-6 not use
range 51 - 100 1 - 50 – –
setting Branch address + 50
$FFRUGLQJWRWKHVHWDGGUHVVIRUH[DPSOHWKHDG-
dresses for the connected indoor units are set sequentially
(for example, 02, 03, 04, and 05).
6SHFLI\ZKHWKHULQGRRUXQLWVDUHFRQQHFWHGWRHDFK
port (A, B, C, D, and E).
There are no ad-
dress settings for
the indoor units.
SW1 12345
21 21 21 21 21
Port A B C D E
Address 01 (SW11, 12)
02 03 04 05 (sequential numbers)
SW1 12345 (6)
Port A B C D E (not use)
,QGRRUXQLWVDUHFRQQHFWHG21
Indoor units are not connected OFF
1RWH %UDQFKER[DGGUHVV
:KHQVHWWLQJWKHDGGUHVVXVHDQXPEHUZLWKLQWKHUDQJH±
([7KHVHWDGGUHVVLVDQGWKHUHDUHLQGRRUXQLWV$%&'DQG(
,I$%&'DQG((LVLQFRUUHFWEHFDXVHLWH[FHHGV
([2XWGRRU%UDQFK!,QGRRU$%&'(%UDQFK!,QGRRU$%&
Outdoor
address
(51) *1
*1 Outdoor address
%UDQFK%R[!VWDUWDGGUHVV
%UDQFK%R[!
A-port address = Start address = 01
B-port address = Start address + 1 = 02
C-port address = Start address + 2 = 03
D-port address = Start address + 3 = 04
E-port address = Start address + 4 = 05
%UDQFK%R[!
%UDQFK%R[!VWDUWDGGUHVV
%UDQFK%R[!ROGHVWVWDUWDGGUHVV
= 05 + 1 = 06
A-port address = Start address = 06
B-port address = Start address + 1 = 07
C-port address = Start address + 2 = 08
([2XWGRRU%UDQFK!,QGRRU$&(%UDQFK!,QGRRU$&(
Outdoor
address
(51) *1
*1 Outdoor address
%UDQFK%R[!VWDUWDGGUHVV
%UDQFK%R[!
A-port address = Start address = 01
B-port address no connection
C-port address = Start address + 1 = 02
D-port address no connection
E-port address = Start address + 2 = 03
%UDQFK%R[!
%UDQFK%R[!VWDUWDGGUHVV
%UDQFK%R[!ROGHVWVWDUWDGGUHVV
= 03 + 1 = 04
A-port address = Start address = 04
B-port address no connection
C-port address = Start address + 1 = 05
D-port address no connection
E-port address = Start address + 2 = 06
Indoor
Indoor
Indoor
Indoor
Indoor
Indoor
Indoor
Indoor
Indoor
Indoor
Indoor
Indoor
Indoor
Indoor
(01) = A-port
(02) = B-port
(03) = C-port
(04) = D-port
(05) = E-port
(06) = A-port
(07) = B-port
(08) = C-port
(01) = A-port
non B-port
(02) = C-port
non D-port
(03) = E-port
(04) = A-port
non B-port
(05) = C-port
non D-port
(06) = E-port
%UDQFK%R[!
address (01) *2
6: 21
SW1 2, 4 OFF
%UDQFK%R[!
address (04) *3
6: 21
SW1 2, 4 OFF
%UDQFK%R[!
address (06) *3
6: 21
SW1 4, 5 OFF
%UDQFK%R[!
address (01) *2
6:21
16
8. Test run
8.2.Test run
8.2.1. Using remote controller
Refer to the indoor unit installation manual.
%HVXUHWRSHUIRUPWKHWHVWUXQIRUHDFKLQGRRUXQLW0DNHVXUHHDFKLQGRRU
unit operates properly following the installation manual attached to the unit.
,I\RXSHUIRUPWKHWHVWUXQIRUDOOLQGRRUXQLWVDWRQFH\RXFDQQRWGHWHFWDQ\
erroneous connection, if any, of the refrigerant pipes and the connecting
wires.
* The compressor operation is not available for 3 minutes at least after the
power is supplied.
7KHFRPSUHVVRUFDQHPLWQRLVHMXVWDIWHUWXUQRQWKHSRZHUVXSSO\RULQFDVH
of low outside air temperature.
About the restart protective mechanism
Oncethe compressorstops, therestart preventivedevice operatesso the compressor
will not operate for 3 minutes to protect the air conditioner.
8.2.2. Using SW3 in outdoor unit
Note:
In case of the test run from outdoor unit, all indoor units operate. Therefore,
you can not detect any erroneous connection of refrigerant pipes and the
connecting wires. If it aims at detection of any erroneous connection, be
sure to carry out the test run from remote controller with reference to “8.2.1.
Using remote controller”.
SW3-1 ON Cooling operation
SW3-2 OFF
SW3-1 ON Heating operation
SW3-2 ON
* After performing the test run, set SW3-1 to OFF.
$IHZVHFRQGVDIWHUWKHFRPSUHVVRUVWDUWVDFODQJLQJQRLVHPD\EHKHDUGIURP
the inside of the outdoor unit. The noise is coming from the check valve due to
the small difference in pressure in the pipes. The unit is not faulty.
The test run operation mode cannot be changed by DIP switch SW3-2 during
WKHWHVWUXQ7RFKDQJHWKHWHVWUXQRSHUDWLRQPRGHGXULQJWKHWHVWUXQVWRS
the test run by DIP switch SW3-1. After changing the test run operation mode,
resume the test run by switch SW3-1.)
8.1.Before test run
ŹAfter completing installation and the wiring and piping of the indoor and
outdoor units, check for refrigerant leakage, looseness in the power sup-
ply or control wiring, wrong polarity, and no disconnection of one phase
in the supply.
Ź8VHDYROW0RKPWHVWHUWRFKHFNWKDWWKHUHVLVWDQFHEHWZHHQWKH
SRZHUVXSSO\WHUPLQDOVDQGJURXQGLVDWOHDVW0
Ź'RQRWFDUU\RXWWKLVWHVWRQWKHFRQWUROZLULQJORZYROWDJHFLUFXLWWHUPL-
nals.
Warning:
'RQRWXVHWKHDLUFRQGLWLRQHULIWKHLQVXODWLRQUHVLVWDQFHLVOHVVWKDQ0
Insulation resistance
After installation or after the power source to the unit has been cut for an extended
SHULRGWKHLQVXODWLRQUHVLVWDQFHZLOOGURSEHORZ0GXHWRUHIULJHUDQWDFFXPXODW-
ing in the compressor. This is not a malfunction. Perform the following procedures.
1. Remove the wires from the compressor and measure the insulation resistance
of the compressor.
,IWKHLQVXODWLRQUHVLVWDQFHLVEHORZ0WKHFRPSUHVVRULVIDXOW\RUWKHUHVLVW-
ance dropped due the accumulation of refrigerant in the compressor.
3. After connecting the wires to the compressor, the compressor will start to warm
up after power is supplied. After supplying power for the times indicated below,
measure the insulation resistance again.
7KHLQVXODWLRQUHVLVWDQFHGURSVGXHWRDFFXPXODWLRQRIUHIULJHUDQWLQWKH
FRPSUHVVRU7KHUHVLVWDQFHZLOOULVHDERYH0DIWHUWKHFRPSUHVVRULV
warmed up for four hours.
(The time necessary to warm up the compressor varies according to atmos-
pheric conditions and refrigerant accumulation.)
7RRSHUDWHWKHFRPSUHVVRUZLWKUHIULJHUDQWDFFXPXODWHGLQWKHFRPSUHVVRU
the compressor must be warmed up at least 12 hours to prevent breakdown.
,IWKHLQVXODWLRQUHVLVWDQFHULVHVDERYH0WKHFRPSUHVVRULVQRWIDXOW\
Caution:
The compressor will not operate unless the power supply phase connec-
tion is correct.
7XUQRQWKHSRZHUDWOHDVWKRXUVEHIRUHVWDUWLQJRSHUDWLRQ
- Starting operation immediately after turning on the main power switch can result
in severe damage to internal parts. Keep the power switch turned on during the
operational season.
ŹThe followings must be checked as well.
7KHRXWGRRUXQLWLVQRWIDXOW\/('RQWKHFRQWUROERDUGRIWKHRXWGRRUXQLWÀDVK
when the outdoor unit is faulty.
%RWKWKHJDVDQGOLTXLGVWRSYDOYHVDUHFRPSOHWHO\RSHQ
5HIULJHUDQWFROOHFWLQJ3XPSGRZQ
Perform the following procedures to collect the refrigerant when moving the
indoor unit or the outdoor unit.
1Turn off the circuit breaker.
2Connect the low pressure side of the gauge manifold to the service port of the
gas side stop valve.
3Close the liquid stop valve.
4Supply power (circuit breaker).
* Start-up of the indoor-outdoor communication takes about 3 minutes after the
power (circuit breaker) is turned on. Start the pump-down operation 3 to 4
PLQXWHVDIWHUWKHSRZHUFLUFXLWEUHDNHULVWXUQHG21
5 &RQ¿UPWKDW6:LVVHWWR2))DQGWKHQVHW6:WR21WRSHUIRUPWKH
test run for cooling operation. The compressor (outdoor unit) and ventilators
(indoor and outdoor units) start operating and test run for cooling operation
begins. Immediately after performing the test run for cooling operation, set the
RXWGRRUVHUYLFHVZLWFK6:SXPSGRZQVZLWFKIURP2))WR21
'RQRWFRQWLQXHWRRSHUDWHIRUDORQJWLPHZLWKWKHVZLWFK6:VHWWR21
Make sure to switch it to OFF after pump down is completed.
6Fully close the gas stop valve when the pressure reading on the gauge drops
7.1 - 0.0 PSIG (approximately 0.5 - 0.0 kgf/cm2)
7Set SW3-1 to OFF to stop the air conditioner operation. (Set the outdoor ser-
YLFHVZLWFK6:IURP21WR2))
8Turn off the power supply (circuit breaker).
* If too much refrigerant has been added to the air conditioner system, the
pressure may not drop to 7.1 PSIG (0.5 kgf/cm2). If this occurs, use a refriger-
ant collecting device to collect all of the refrigerant in the system, and then
recharge the system with the correct amount of refrigerant after the indoor and
outdoor units have been relocated.
Warning:
When pumping down the refrigerant, stop the compressor before discon-
necting the refrigerant pipes. The compressor may burst and cause injury if
any foreign substance, such as air, enters the system.
17
9. Special Functions
ADistant control board
BRelay circuit
CExternal output adapter (PAC-SA88HA-E)
DOutdoor unit control board
ELamp power supply
FProcure locally
GMax. 10 m (32 ft)
L1: Error display lamp
L2: Compressor operation lamp
X, Y: Relay (Coil standard of 0.9W or less for DC 12V)
X, Y: Relay (DC1mA)
ARemote control panel
BRelay circuit
C([WHUQDOLQSXWDGDSWHU3$&6&1$(
DOutdoor unit control board
ERelay power supply
FProcure locally
GMax. 10 m (32 ft)
21 OFF
SW1 Heating Cooling
SW2 Validity of SW1 Invalidity of SW1
The silent mode and the demand control are selected by switching the DIP switch 9-2 on outdoor controller board.
It is possible to set it to the following power consumption (compared with ratings) by setting SW1, 2.
Outdoor controller board DIP SW9-2 SW1 SW2 Function
Silent mode OFF 21 – Silent mode operation
Demand control 21 OFF OFF 1RUPDO
21 OFF 75 %
21 21 50 %
OFF 21 0 % (Stop)
ARemote control panel
BRelay circuit
C([WHUQDOLQSXWDGDSWHU3$&6&1$(
DOutdoor unit control board
ERelay power supply
FProcure locally
GMax. 10 m (32 ft)
CN51
X
5
4
3
Y
~Y
X
L1
L2
CN3N
X
Y
SW1
SW2
1
2
3
~
Y
X
CN3D
X
Y
SW1
SW2
1
2
3
~
Y
X
9.1. OUTDOOR UNIT INPUT/OUTPUT CONNECTOR
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6LOHQW0RGH'HPDQG&RQWURO&1'
18
Index
1. Consignes de sécurité
ŹAvant d’installer le climatiseur, lire attentivement toutes les “Consignes
de sécurité”.
ŹVeuillez consulter ou obtenir la permission votre compagnie d’électricité
avant de connecter votre système.
Une fois l’installation terminée, expliquer les “Consignes de sécurité”, l’utilisation et
l’entretien de l’appareil au client conformément aux informations du mode d’emploi
et effectuer l’essai de fonctionnement en continu pour garantir un fonctionnement
normal. Le manuel d’installation et le mode d’emploi doivent être fournis à l’utilisateur
qui doit les conserver. Ces manuels doivent également être transmis aux nouveaux
utilisateurs.
: Indique un élément qui doit être mis à la terre.
Avertissement:
Prendre soin de lire les étiquettes se trouvant sur l’appareil principal.
Avertissement:
/’appareil ne doit pas rtre installé par l’utilisateur. Contacter un revendeur
ou un technicien agréé pour installer l’appareil. Si l’appareil n’est pas
correctement installé, des fuites d’eau, des chocs électriques ou des incendies
peuvent se produire.
Pour l’installation, respecter les instructions du manuel d’installation et
utiliser des outils et des composants de tuyau spécialement conçus pour
une utilisation avec le réfrigérant R410A.
/a pression du réfrigérant R410A du système +)C est 1,fois supérieure jcelle
des réfrigérants traditionnels. Si des composants de tuyau non adaptés au
réfrigérant R410A sont utilisés et si l’appareil n’est pas correctement installé,
les tuyaux peuvent éclater et provoquer des dommages ou des blessures.
Des fuites d’eau, des chocs électriques et des incendies peuvent également
se produire.
/’appareil doit rtre installé conformément aux instructions pour réduire les
risques de dommages liés jdes tremblements de terre, des typhons ou des
vents violents. Une installation incorrecte peut entraîner la chute de l’appareil
et provoquer des dommages ou des blessures.
/’appareil doit rtre solidement installé sur une structure pouvant supporter
son poids. Si l’appareil est ¿xé sur une structure instable, il risque de tomber
et de provoquer des dommages ou des blessures.
Si le climatiseur est installé dans une petite pièce, certaines mesures doivent
rtre prises pour éviter que la concentration de réfrigérant ne dépasse le seuil
de sécurité en cas de fuite. Consulter un revendeur pour obtenir les mesures
adéquates et ainsi éviter de dépasser la concentration autorisée. En cas de
fuite de réfrigérant et de dépassement du seuil de concentration, des risques
liés au manque d’oxygène dans la pièce peuvent survenir.
Aérer la pièce en cas de fuite de réfrigérant lors de l’utilisation. /e contact du
réfrigérant avec une Àamme peut provoquer des émanations de gaz toxiques.
7outes les installations électriques doivent rtre effectuées par un technicien
qualifié conformément aux réglementations locales et aux instructions
fournies dans ce manuel. /es appareils doivent rtre alimentés par des lignes
électriques adaptées. Utiliser la tension correcte et des coupe-circuits. Des
lignes électriques de capacité insuf¿sante ou des installations électriques
incorrectes peuvent provoquer un choc électrique ou un incendie.
Veiller jrelier les cordons d’alimentation et les ¿ls de raccordement des
appareils intérieurs, des appareils extérieurs et des boîtiers de dérivation
directement sur les appareils (sans raccordement intermédiaire).
/es raccordements intermédiaires peuvent engendrer des erreurs de
communication si de l’eau s’in¿ltre dans les cordons et les ¿ls et provoquent
une isolation insuf¿sante de la mise jla terre ou un mauvais contact électrique
au niveau du point de raccordement intermédiaire.
(Si un raccordement intermédiaire s’avère nécessaire, veiller jprendre des
mesures pour éviter que de l’eau ne s’in¿ltre dans les cordons et les ¿ls.)
Utiliser le cuivre phosphoreux C10, pour des tuyaux sans soudure en cuivre
et en alliage de cuivre, pour raccorder les tuyaux de réfrigérant. Si les tuyaux
ne sont pas correctement raccordés, la mise jla terre de l’appareil ne sera
pas conforme et des chocs électriques peuvent se produire.
1’utiliser que les ckbles spéci¿és pour les raccordements. /es raccordements
doivent rtre réalisés correctement sans tension sur les bornes. 1e Mamais
effectuer de Monction sur les ckbles (sauf en cas d’indications contraires). /e
non respect de cette consigne peut entraîner une surchauffe ou un incendie.
/e couvercle du bloc de sortie de l’appareil extérieur doit rtre solidement ¿xé. S’il
n’est pas correctement installé et si des poussières et de l’humidité s’in¿ltrent
dans l’appareil, un choc électrique ou un incendie peut se produire.
/ors de l’installation, du déplacement ou de l’entretien de l’appareil extérieur,
n’utilisez que le réfrigérant spéci¿é (R410A) pour remplir les tuyaux de réfrigérant.
1e pas le mélanger avec un autre réfrigérant et faire le vide d’air dans les tuyaux.
Si du réfrigérant est mélangé avec de l’air, cela peut provoquer des pointes de pression
dans les tuyaux de réfrigérant et entraîner une explosion et d’autres risques.
/’utilisation d’un réfrigérant différent de celui spéci¿é pour le climatiseur
peut entraîner des défaillances mécaniques, des dysfonctionnements du
système ou une panne de l’appareil. Dans le pire des cas, cela peut entraîner
un obstacle jla mise en sécurité du produit.
1’utiliser que les accessoires agréés par 0itsubishi Electric et contacter un
revendeur ou un technicien agréé pour les installer. Si les accessoires ne
sont pas correctement installés, une fuite d’eau, un choc électrique ou un
incendie peut se produire.
1e pas changer l’appareil. Consulter un revendeur en cas de réparations. Si
les modi¿cations ou réparations ne sont pas correctement effectuées, une
fuite d’eau, un choc électrique ou un incendie peut se produire.
/’utilisateur ne doit Mamais essayer de réparer ou de déplacer l’appareil.
Si l’appareil n’est pas correctement installé, des fuites d’eau, des chocs
électriques ou des incendies peuvent se produire. Si le climatiseur doit rtre
réparé ou déplacé, contacter un revendeur ou un technicien agréé.
Une fois l’installation terminée, véri¿er les éventuelles fuites de réfrigérant.
Si le réfrigérant fuit dans la pièce et entre en contact avec la Àamme d’un
chauffage ou d’une cuisinière, des gaz toxiques peuvent se dégager.
1.1. Avant l’installation
Précaution:
1e pas utiliser l’appareil dans un environnement inhabituel. Si le climatiseur
est installé dans des endroits exposés jla vapeur, jl’huile volatile (notamment
l’huile de machine), au gaz sulfurique, june forte teneur en sel, par exemple,
jla mer, ou dans des endroits ol’appareil sera recouvert de neige, les
performances peuvent considérablement diminuer et les pièces internes de
l’appareil rtre endommagées.
1e pas installer l’appareil dans des endroits odes gaz de combustion peuvent
s’échapper, se dégager ou s’accumuler. /’accumulation de gaz de combustion
autour de l’appareil peut provoquer un incendie ou une explosion.
Avertissement:
Précautions jsuivre pour éviter tout danger de blessure ou de décès de
l’utilisateur.
Précaution:
Décrit les précautions qui doivent rtre prises pour éviter d’endommager
l’appareil.
/’appareil extérieur produit de la condensation lors du fonctionnement du
chauffage. Prévoir un système de drainage autour de l’appareil extérieur au
cas ola condensation provoquerait des dommages.
/ors de l’installation de l’appareil dans un h{pital ou un centre de communica-
tions, se préparer au bruit et aux interférences électroniques. /es inverseurs,
les appareils électroménagers, les équipements médicaux haute fréquence et
de communications radio peuvent provoquer un dysfonctionnement ou une
défaillance du climatiseur. /e climatiseur peut également endommager les
équipements médicaux et de communications, perturbant ainsi les soins et
réduisant la qualité d’af¿chage des écrans.
1.. Avant l’installation (déplacement)
Précaution:
7ransporter les appareils avec précaution. /’appareil doit rtre transporté par
deux personnes ou plus, car il pèse 0 Ng, 44 lbs minimum. Portez des gants
de protection pour sortir l’appareil de son emballage et pour le déplacer, car
vous risquez de vous blesser les mains sur les ergots ou les arrtes des autres
pièces.
Veiller jéliminer le matériel d’emballage en toute sécurité. /e matériel
d’emballage (clous et autres pièces en métal ou en bois) peut provoquer des
blessures.
/a base et les ¿xations de l’appareil extérieur doivent rtre véri¿ées régu-
lièrement pour éviter qu’elles ne se desserrent, se ¿ssurent ou subissent
d’autres dommages. Si ces défauts ne sont pas corrigés, l’appareil peut
tomber et provoquer des dommages ou des blessures.
1e pas nettoyer le climatiseur jl’eau au risque de provoquer un choc électrique.
Serrer les écrous évasés, conformément aux spéci¿cations, jl’aide d’une
clé dynamométrique. Si les écrous sont trop serrés, ils peuvent se casser
après un certain temps et provoquer une fuite de réfrigérant.
Véri¿cation des pièces livrées
Outre le présent manuel, les éléments suivants sont livrés avec l’appareil extérieur.
Ils servent à mettre à la terre les bornes S des blocs de sortie de transmission
TB3, TB7. Pour plus de détails à ce sujet, voir “7. Installations électriques”. Fil de terre (u2)
1. Consignes de sécurité............................................ 18
2. Pièces et schéma d’installation ..................................... 19
3. Emplacement d’installation ........................................ 20
4. Installation de l’appareil extérieur ................................... 22
5. Installation de la tuyauterie du réfrigérant ............................. 22
6. Mise en place du tuyau d’écoulement ................................ 26
7. Installations électriques ........................................... 26
8.Marched’essai ................................................. 32
9. Fonctions spéciales.............................................. 33
19
.1. Avant l’installation ()ig. -1)
Ce manuel d’installation ne traite que de l’installation d’un appareil extérieur.
Se reporter au manuel d’installation propre jchaque appareil lors de l’ins-
tallation d’appareils intérieurs et du boîtier de dérivation.
Toutes modi¿cations structurelles requises pour l’installation doivent être conformes
au code du bâtiment local en vigueur.
Ce schéma vise à montrer la con¿guration des accessoires.
Dans le cadre d’une installation réelle, l’appareil extérieur doit être tourné de 180°.
Les appareils doivent être installés par des fournisseurs quali¿és conformément
à la réglementation locale.
Remarque :
/es dimensions indiquées au-dessus des Àèches sont indispensables pour garantir
les performances du climatiseur. Installer l’appareil dans un emplacement aussi
spacieux que possible pour faciliter son entretien ou ses réparations ultérieurement.
Pièces jacheter localement
Fil de raccordement du boîtier de dérivation/de l’appareil extérieur
(3 conducteurs) 1
Tuyau d’extension 1
Manchon d’ouverture murale 1
Gaine d’ouverture murale 1
Bande de ¿xation de tuyau (la quantité dépend de la longueur du tuyau.)
2 à 7
9is de ¿xation pour 4 × 20 mm (13/16")
(la quantité dépend de la longueur du tuyau.) 2 à 7
Ruban adhésif de tuyauterie 1
Mastic 1
Huile réfrigérante 1
Cordon d’alimentation (2 conducteurs, se reporter à la section 7.3. Mise
en place des câbles de transmission.) 1
1.3. Avant l’installation électrique
Précaution:
Veiller jinstaller des coupe-circuits. Dans le cas contraire, un choc élec-
trique peut se produire.
I0P2R7A17
S’assurer que le disMoncteur de fuite de courant est compatible avec les
harmoniques les plus élevées.
Veiller jtouMours utiliser un disMoncteur de fuite de courant compatible avec
les harmoniques les plus élevées car cet appareil est équipé d’un inverseur.
/’utilisation d’un disMoncteur inapproprié peut provoquer un dysfonction-
nement de l’onduleur.
Pour les lignes électriques, utiliser des ckbles standard de capacité suf¿sante.
Dans le cas contraire, un court-circuit, une surchauffe ou un incendie peut se
produire.
/ors de l’installation des lignes électriques, ne pas mettre les ckbles sous
tension. Si les connexions sont desserrées, les ckbles peuvent se rompre et
provoquer une surchauffe ou un incendie.
Veiller jmettre l’appareil jla terre. 1e pas relier le ¿l de terre aux conduites
de gaz ou d’eau, aux paratonnerres ou aux lignes de terre téléphoniques. Une
mise jla terre incorrecte de l’appareil peut provoquer un choc électrique.
Utiliser des coupe-circuits (disMoncteur de fuite jla terre, interrupteur d’iso-
lement (fusible %) et disMoncteur jboîtier moulé) jla capacité spéci¿ée. Si
la capacité du coupe-circuit est supérieure jcelle spéci¿ée, une défaillance
ou un incendie peut se produire.
1.4. Avant la marche d’essai
Précaution:
Activer l’interrupteur principal au moins 1heures avant la mise en fonctionne-
ment de l’appareil. /’utilisation de l’appareil Muste après sa mise sous tension
peut endommager sérieusement les pièces internes. /aisser l’interrupteur
activé pendant la période d’utilisation.
Avant d’utiliser l’appareil, véri¿er que tous les panneaux, toutes les protec-
tions et les autres pièces de sécurité sont correctement installés. /es pièces
tournantes, chaudes ou jhaute tension peuvent provoquer des blessures.
1e pas toucher les interrupteurs les mains humides au risque de provoquer
un choc électrique.
1e pas toucher les tuyaux de réfrigérant les mains nues lors de l’utilisation.
/es tuyaux de réfrigérant sont chauds ou froids en fonction de l’état du réfri-
gérant qu’ils contiennent. Toucher les tuyaux peut provoquer des brûlures
ou des gelures.
A la ¿n de l’utilisation de l’appareil, attendre au moins cinq minutes avant de
désactiver l’interrupteur principal. Dans le cas contraire, une fuite d’eau ou
une défaillance peut se produire.
1.5. Utilisation de climatiseurs utilisant le réfrigérant R410A
Précaution
Utiliser le cuivre phosphoreux C10, pour des tuyaux sans soudure en cuivre
et en alliage de cuivre, pour raccorder les tuyaux de réfrigérant. Véri¿er que
l’intérieur des tuyaux est propre et dépourvu de tout agent nocif tel que des
composés sulfuriques, des oxydants, des débris ou des saletés. Utiliser des
tuyaux d’épaisseur spéci¿ée. (Se reporter jla page ). Respecter les instruc-
tions suivantes en cas de réutilisation de tuyaux de réfrigérant R existants.
-
Remplacer les écrous évasés existants et évaser de nouveau les sections évasées.
- 1e pas utiliser de tuyaux ¿ns. (Se reporter à la page 22)
StocNer jl’intérieur les tuyaux jutiliser pendant l’installation et couvrir les
deux extrémités Musqu’au processus de brasage. (/aisser les Moints de coude,
etc. dans leur emballage.) /’in¿ltration de poussières, de débris ou d’humidité
dans les tuyaux de réfrigérant peut affecter la qualité de l’huile ou endommager
le compresseur.
Appliquer une petite quantité d’huile ester, éther ou alNylbenzène comme huile
réfrigérante sur les sections évasées. /e mélange d’huile minérale et d’huile
réfrigérante peut affecter la qualité de l’huile.
1e pas utiliser un réfrigérant autre que le réfrigérant R410A. Si c’est le cas, le
chlore peut affecter la qualité de l’huile.
Utiliser les outils suivants spécialement conçus pour une utilisation avec le
réfrigérant R410A. /es outils suivants sont nécessaires pour utiliser le réfri-
gérant R410A. En cas de questions, contacter le revendeur le plus proche.
Outils (pour R410A)
Collecteur jauge Outil d’évasement
Tuyau de charge Jauge de réglage de la taille
Détecteur de fuite de gaz Adaptateur pour pompe à vide
Clé dynamométrique
Echelle électronique de charge de réfrigérant
Veiller jutiliser les outils adaptés. /’in¿ltration de poussières, de débris ou d’humi-
dité dans les tuyaux de réfrigérant peut affecter la qualité de l’huile réfrigérante.
1e pas utiliser un cylindre de charge. /’utilisation d’un cylindre de charge peut
modi¿er la composition du réfrigérant et réduire son ef¿cacité.
1. Consignes de sécurité
. Pièces et schéma d’installation
)ig. -1
Boîtier de dérivation
Type à 5 embranchements
Type à 3 embranchements
Appareil extérieur
20
3.1. Tuyaux de réfrigérant
Se reporter à la section 5.2. Longueur de tuyau et différence de hauteur.
3.. Sélection de l’emplacement d’installation de l’appa-
reil extérieur
Eviter les endroits exposés au rayonnement solaire direct ou à d’autres sources de
chaleur.
Sélectionner un endroit ole bruit de l’appareil n’incommodera pas le voisinage.
Sélectionner un endroit permettant un accès facile des câbles et tuyaux à la source
d’alimentation et à l’appareil intérieur.
Eviter les endroits exposés à des risques de fuite, d’échappement ou d’accumulation
de gaz.
Ne pas oublier que des gouttes d’eau peuvent couler de l’appareil lors de son utilisation.
Sélectionner un endroit de niveau pouvant supporter le poids et les vibrations de
l’appareil.
Eviter les endroits ol’appareil peut être recouvert de neige. Dans les zones oles
chutes de neige importantes sont prévisibles, certaines précautions (par ex., relever
l’emplacement d’installation ou installer une hotte sur l’arrivée d’air) doivent être prises
pour éviter que la neige ne bloque l’arrivée d’air ou ne tombe directement dessus. La
circulation de l’air risque de diminuer et d’entraîner un dysfonctionnement.
Eviter les endroits exposés à l’huile, à la vapeur ou au gaz sulfurique.
Utiliser les poignées de transport (quatre emplacements à gauche, à droite, à l’avant
et à l’arrière) de l’appareil extérieur pour le déplacer. Transporter l’appareil par le
bas peut provoquer des pincements aux mains ou aux doigts.
3.3. Dimensions extérieures (Appareil extérieur) ()ig. 3-1)
3.4.
Contraintes concernant l’installation d’un appareil inté-
rieur et d’un boîtier de raccordement
Les contraintes suivantes s’appliquent aux appareils intérieurs qui peuvent être
raccordés à cet appareil extérieur.
Les appareils intérieurs avec les numéros de modèle suivants peuvent être raccordés
: 06, 09, 12, 15, 18, 24, 30 et 36.
Pour le nombre d’appareils qui peuvent être raccordés, se reporter au Tableau 1
ci-dessous.
La capacité nominale totale (refroidissement) des appareils intérieurs raccordés (voir
Tableau 2) ne doit pas dépasser 130 % de la capacité de l’appareil extérieur (se
reporter à la plage de capacités des appareils raccordés au Tableau 1).
En outre, 2 boîtiers de raccordement peuvent être raccordés au maximum.
Tableau 1 : Nombre d’appareils pouvant être raccordés et plage de capacités des appa-
reils raccordés
Nom de modèle appareil
extérieur
Nombre d’appareils pou-
vant être raccordés
Plage de capacités des
appareils raccordés
MXZ-4C36 2-4 (3) appareils *1 *2 12–46 kBTU/h
MXZ-5C42 2-5 (4) appareils *1 *2 12–54 kBTU/h
MXZ-8C48 2-8 (6) appareils *1 *2 12–62 kBTU/h
*1 Le nombre entre parenthèses est le nombre maximum d'appareils qui peuvent
être raccordés lorsque 1 ou plusieurs appareils PLA-A·EA7 sont raccordés.
*2 Pour chaque boîtier de dérivation raccordé, lorsque 2 appareils de la série MVZ
sont raccordés, d'autres appareils intérieurs ne peuvent pas être raccordés. Pour
des raccordements autres que ceux spéci¿és ci-dessus, y compris les raccorde-
ments avec des appareils de la série MVZ, consultez un revendeur.
Tableau 2 : Capacité nominale (refroidissement) des appareils intérieurs
N° de modèle 06 09 12 15 18 24 30 36
Capacité nominale
(refroidissement) (kBTU/h) 6 9 12 15 18 24 30 36
Exemple: MXZ-8C48
MSZ-18 = 18
+
SEZ-12 = 12
+
SLZ-12 = 12
+
SEZ-09 = 9
+
SLZ-09 = 9
Dans les combinaisons dans lesquelles la capacité totale des appareils intérieurs
est supérieure à la capacité de l’appareil extérieur, la capacité de refroidissement de
chaque appareil intérieur sera réduite en dessous de sa capacité de refroidissement
nominale. Par conséquent, combiner des appareils intérieurs à un appareil extérieur
sans dépasser la capacité de ce dernier, si possible.
3.5. Ventilation et espace de service
Remarque :
/es dimensions ¿gurant jc{té des Àèches ci-dessus sont nécessaires pour
garantir les performances du climatiseur. Installez l'appareil dans un espace
le plus large possible pour faciliter les entretiens ou les réparations ultérieurs.
3.5.1. Installation jun endroit exposé au vent
Lors de l’installation de l’appareil extérieur sur un toit ou à d’autres endroits non
protégés du vent, diriger la sortie d’air de l’appareil vers le côté qui n’est pas
directement exposé aux vents forts. Le vent soufÀant dans la sortie d’air peut empêcher
l’air de circuler normalement et provoquer un dysfonctionnement.
Voici trois exemples de précautions à prendre.
1Positionner la sortie d’air vers le mur le plus proche et à environ 50 cm (19-11/16")
de celui-ci. (Fig. 3-2)
2Installer un guidage d’air optionnel si l’appareil est placé dans un endroit oles
vents violents d’un typhon par exemple pourraient s’engouffrer directement dans
la sortie d’air. (Fig. 3-3)
AGuidage d’air
3Placer l’appareil de sorte que la sortie d’air soufÀe dans la direction perpendiculaire
à celle des vents saisonniers, si celle-ci est connue. (Fig. 3-4)
BSens du vent
Capacité nominale totale
60 62 kBTU/h
3. Emplacement d’installation
)ig. 3-
)ig. 3-3
)ig. 3-4
B
)ig. 3-1
13
14-9/16
41-11/32
8-7/8 23-5/8
52-11/16
(pouce)
This manual suits for next models
3
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