Mitsubishi Electric MSZ-GC22VA -E2 Installation manual

Required Tools for Installation
Phillips screwdriver
PPKH[DJRQDOZUHQFK
Level
Flare tool for R410A
Scale
Gauge manifold for R410A
Utility knife or scissors
Vacuum pump for R410A
65 mm hole saw
Charge hose for R410A
Torque wrench
Pipe cutter with reamer
Wrench (or spanner)
ENGLISH
SG79Y762H04
Model names are indicated in 1-3.
When installing multi units, refer to
the installation manual of the multi
unit for outdoor unit installation.
SPLIT-TYPE AIR CONDITIONERS
INSTALLATION MANUAL
1. BEFORE INSTALLATION
1-1. THE FOLLOWING SHOULD ALWAYS BE OBSERVED FOR SAFETY
• Be sure to read “THE FOLLOWING SHOULD ALWAYS BE OBSERVED FOR SAFETY” before installing the air conditioner.
‡ %HVXUHWRREVHUYHWKHZDUQLQJVDQGFDXWLRQVVSHFL¿HGKHUHDVWKH\LQFOXGHLPSRUWDQWLWHPVUHODWHGWRVDIHW\
• After reading this manual, be sure to keep it together with the OPERATING INSTRUCTIONS for future reference.
WARNING
N Do not install the unit by yourself (user).
Incomplete installation could cause fire or electric
shock, injury due to the unit falling, or leakage of water.
Consult the dealer from whom you purchased the unit
RUDTXDOL¿HGLQVWDOOHU
N Perform the installation securely referring to the
installation manual.
Incomplete installation could cause fire or electric
shock, injury due to the unit falling, or leakage of water.
N Install the unit securely in a place which can bear
the weight of the unit.
If the installation location cannot bear the weight of the
unit, the unit could fall causing injury.
N Perform electrical work according to the installation
manual and be sure to use an exclusive circuit. Do
not connect other electrical appliances to the circuit.
,IWKHFDSDFLW\RIWKHSRZHUFLUFXLWLVLQVXI¿FLHQWRUWKHUH
LV LQFRPSOHWH HOHFWULFDO ZRUN LW FRXOG UHVXOW LQ D ¿UH RU
an electric shock.
N Do not damage the wires by applying excessive
pressure with parts or screws.
'DPDJHGZLUHVFRXOGFDXVH¿UH
N Be sure to cut off the main power in case of setting
up the indoor P.C. board or wiring works.
Failure to do so could cause electric shock.
N 8VHWKHVSHFL¿HGZLUHVWRFRQQHFWWKHLQGRRUDQG
RXWGRRUXQLWVVHFXUHO\DQGDWWDFKWKHZLUHV¿UPO\
to the terminal block connecting sections so the
stress of the wires is not applied to the sections.
,QFRPSOHWHFRQQHFWLQJDQGVHFXULQJFRXOGFDXVH¿UH
N 'RQRWLQVWDOOWKHXQLWLQDSODFHZKHUHLQÀDPPDEOH
gas may leak.
If gas leaks and accumulates in the area around the
XQLWLWFRXOGFDXVHDQH[SORVLRQ
(Could lead to death, serious injury, etc.)
N Do not use intermediate connection of the power
cord or the extension cord and do not connect
many devices to one AC outlet.
,WFRXOG FDXVHD¿UHRUDQHOHFWULFVKRFNGXHWRGHIHFWLYHFRQWDFWGHIHFWLYHLQVXODWLRQH[FHHGLQJWKHSHUPLVsible current, etc.
N %HVXUHWRXVHWKHSDUWVSURYLGHGRUVSHFL¿HGSDUWV
for the installation work.
The use of defective parts could cause an injury or leakDJH RI ZDWHU GXH WR D ¿UH DQ HOHFWULF VKRFN WKH XQLW
falling, etc.
N When plugging the power supply plug into the
outlet, make sure that there is no dust, clogging,
or loose parts in both the outlet and the plug. Make
sure that the power supply plug is pushed completely into the outlet.
If there is dust, clogging, or loose parts on the power
supply plug or the outlet, it could cause electric shock or
¿UH,IORRVHSDUWVDUHIRXQGRQWKHSRZHUVXSSO\SOXJ
replace it.
N Attach the electrical cover to the indoor unit and the
service panel to the outdoor unit securely.
If the electrical cover of the indoor unit and/or the service panel of the outdoor unit are not attached securely,
LWFRXOGUHVXOWLQD¿UHRUDQHOHFWULFVKRFNGXHWRGXVW
water, etc.
N When installing or relocating the unit, make sure
WKDWQRVXEVWDQFHRWKHUWKDQWKHVSHFL¿HGUHIULJHUant (R410A) enters the refrigerant circuit.
Any presence of foreign substance such as air can
FDXVHDEQRUPDOSUHVVXUHULVHRUDQH[SORVLRQ
N Do not discharge the refrigerant into the atmosphere. If refrigerant leaks during installation, ventilate the room.
CAUTION
,I UHIULJHUDQW FRPHV LQ FRQWDFW ZLWK D ¿UH KDUPIXO JDV
could be generated.
N Check that the refrigerant gas does not leak after
installation has been completed.
If refrigerant gas leaks indoors, and comes into contact
ZLWKWKHÀDPHRIDIDQKHDWHUVSDFHKHDWHUVWRYHHWF
harmful substances will be generated.
N Use appropriate tools and piping materials for
installation.
The pressure of R410A is 1.6 times more than R22.
Not using appropriate tools or materials and incomplete
installation could cause the pipes to burst or injury.
N When pumping down the refrigerant, stop the compressor before disconnecting the refrigerant pipes.
If the refrigerant pipes are disconnected while the compressor is running and the stop valve is open, air could
be drawn in and the pressure in the refrigeration cycle
could become abnormally high. This could cause the
pipes to burst or injury.
N When installing the unit, securely connect the refrigerant pipes before starting the compressor.
If the compressor is started before the refrigerant pipes
are connected and when the stop valve is open, air
could be drawn in and the pressure in the refrigeration
cycle could become abnormally high. This could cause
the pipes to burst or injury.
N )DVWHQDÀDUHQXWZLWKDWRUTXHZUHQFKDVVSHFL¿HG
in this manual.
,IIDVWHQHGWRRWLJKWDÀDUHQXWPD\EUHDNDIWHUDORQJ
period and cause refrigerant leakage.
N The unit shall be installed in accordance with national wiring regulations.
(Could lead to serious injury in particular environments when operated incorrectly.)
N Perform the drainage/piping work securely accord- N Do not install the outdoor unit where small animals
N Earth the unit correctly.
ing to the installation manual.
may live.
Do not connect the earth to a gas pipe, water pipe, lightIf there is defect in the drainage/piping work, water
If small animals enter and touch the electric parts inside
ning rod or telephone earth. Defective earthing could
could drop from the unit, soaking and damaging housethe unit, it could cause a malfunction, smoke emission,
cause electric shock.
hold goods.
RU ¿UH $OVR DGYLVH XVHU WR NHHS WKH DUHD DURXQG WKH
N Install an earth leakage breaker depending on the
unit clean.
installation place.
N 'RQRWWRXFKWKHDLULQOHWRUWKHDOXPLQXP¿QVRI
If an earth leakage breaker is not installed, it could
the outdoor unit.
cause electric shock.
This could cause injury.
1-2. SELECTING THE INSTALLATION LOCATION
INDOOR UNIT
‡ :KHUHDLUÀRZLVQRWEORFNHG
• Where cool air spreads over the entire room.
• Rigid wall without vibration.
‡ :KHUHLWLVQRWH[SRVHGWRGLUHFWVXQVKLQH
• Where easily drained.
• At a distance 1 m or more away from your TV and radio.
Operation of the air conditioner may interfere with radio
RU79UHFHSWLRQ$QDPSOL¿HUPD\EHUHTXLUHGIRUWKHDIfected device.
‡ ,QDSODFHDVIDUDZD\DVSRVVLEOHIURPÀXRUHVFHQWDQG
incandescent lights (so the infrared remote control can
operate the air conditioner normally).
‡ :KHUHWKHDLU¿OWHUFDQEHUHPRYHGDQGUHSODFHGHDVLO\
REMOTE CONTROLLER
• Where it is easy to operate and easily visible.
• Where children cannot touch it.
‡ 6HOHFWDSRVLWLRQDERXWPDERYHWKHÀRRUDQGFKHFN
that signals from the remote controller are surely received by the indoor unit from that position (‘beep’ or
‘beep beep’ receiving tone sounds). After that, attach remote controller holder to a pillar or wall and install wireless remote controller.
Note:
Note:
,QURRPVZKHUHLQYHUWHUW\SHÀXRUHVFHQWODPSVDUHXVHG
It is advisable to make a piping loop near outdoor unit so as
the signal from the wireless remote controller may not be
to reduce vibration transmitted from there.
received.
Note:
OUTDOOR UNIT
When operating the air conditioner in low outside tempera‡ :KHUHLWLVQRWH[SRVHGWRVWURQJZLQG
ture, be sure to follow the instructions described below.
‡ :KHUHDLUÀRZLVJRRGDQGGXVWOHVV
• Where rain or direct sunlight can be avoided as much as • Never install the outdoor unit in a place where its air
possible.
LQOHWRXWOHWVLGHPD\EHH[SRVHGGLUHFWO\WRZLQG
• Where neighbours are not annoyed by operation sound ‡ 7R SUHYHQW H[SRVXUH WR ZLQG LQVWDOO WKH RXWGRRU XQLW
or hot air.
with its air inlet side facing the wall.
• Where rigid wall or support is available to prevent the • 7RSUHYHQWH[SRVXUHWRZLQGLWLVUHFRPPHQGHGWRLQVWDOO
increase of operation sound or vibration.
DEDIÀHERDUGRQWKHDLURXWOHWVLGHRIWKHRXWGRRUXQLW
• Where there is no risk of combustible gas leakage.
• When installing the unit at a high level, be sure to secure Avoid the following places for installation where air conditioner trouble is liable to occur.
the unit legs.
• Where it is at least 3 m away from the antenna of TV set ‡ :KHUHÀDPPDEOHJDVFRXOGOHDN
or radio. Operation of the air conditioner may interfere with • Where there is much machine oil.
radio or TV reception in areas where reception is weak. • Salty places such as the seaside.
$QDPSOL¿HUPD\EHUHTXLUHGIRUWKHDIIHFWHGGHYLFH
‡ :KHUHVXO¿GHJDVLVJHQHUDWHGVXFKDVDKRWVSULQJ
• Install the unit horizontally.
• Please install it in an area not affected by snowfall or • Where there is high-frequency or wireless equipment.
blowing snow. In areas with heavy snow, please install a
FDQRS\DSHGHVWDODQGRUVRPHEDIÀHERDUGV
1-3. SPECIFICATIONS
:LUHVSHFL¿FDWLRQV
Power supply *1
Model
MSZ-GC22VA
MSZ-GC25VA
MSZ-GC35VA
Rated
Frequency
Voltage
230 V
50 Hz
Breaker
capacity
Power supply
Indoor/outdoor
connecting wire
10 A
3-core
1.0 mm2
4-core
1.0 mm2
*1 Connect to the power switch which has a gap of 3 mm or
more when open to interrupt the source power phase. (When
the power switch is shut off, it must interrupt all phases.)
*2 Use wires in conformity with design 60245 IEC 57.
*3 Never use pipes with thickness less than specified. The
SUHVVXUHUHVLVWDQFHZLOOEHLQVXI¿FLHQW
Pipe size
(thickness *3, *4)
Gas
Liquid
ø9.52 mm ø6.35 mm
(0.8 mm) (0.8 mm)
Pipe length and height difference
Insulation
Refrigerant
0D[SLSH 0D[KHLJKW 0D[QXPEHU
length
difference of bends *5, *6 adjustment A *7 thickness *8, *9
20 m
12 m
10
30 g/m
8 mm
Additional refrigerant = A × (pipe length (m) - 5)
*4 Use a copper pipe or a copper-alloy seamless pipe.
*5 Be careful not to crush or bend the pipe during pipe bending. *8 Insulation material : Heat resisting foam plastic 0.045
VSHFL¿FJUDYLW\
*6 Refrigerant pipe bending radius must be 100 mm or more.
,I SLSH OHQJWK H[FHHGV P DGGLWLRQDO UHIULJHUDQW 5$ %HVXUHWRXVHWKHLQVXODWLRQRIVSHFL¿HGWKLFNQHVV([FHVsive thickness may cause incorrect installation of the indoor
charge is required. (No additional charge is required for
pipe length less than 7 m.)
XQLWDQGLQVXI¿FLHQWWKLFNQHVVPD\FDXVHGHZGULSSDJH
1-4. INSTALLATION DIAGRAM
(1) Installation plate
(2)
1
,QVWDOODWLRQSODWH¿[LQJVFUHZ
4 × 25 mm
5
(3) Remote controller holder
(4)
Be sure to use wall hole
Indoor unit
sleeve (C) to prevent
indoor/outdoor connecting
wire (A) from contacting
Wall hole
metal parts in the wall and sleeve (C)
to prevent damage by
rodents in case the wall is
hollow.
80 mm
or mo
re
)L[LQJVFUHZIRU × 16 mm
(Black)
Felt tape
(For left or left-rear piping)
1
)L[WKHSLSHWRZDOO
ZLWKSLSH¿[LQJ
band (E).
3LSH¿[LQJEDQG
(E)
)L[LQJVFUHZ
(F)
1
7 mm or more
(8) Drain socket
PARTS TO BE PROVIDED
AT YOUR SITE
Indoor/outdoor unit connecting wire* 1
([WHQVLRQSLSH
1
Wall hole sleeve
1
Wall hole cover
1
3LSH¿[LQJEDQG
2 to 5
)L[LQJVFUHZIRU(îPP
2 to 5
Piping tape
1
Putty
1
Basically open 100 mm or more
without any obstruction in front
and on both sides of the unit.
1 or 2
(J) Refrigeration oil
(K) Power supply cord*
Outdoor unit installation (GC25/GC35)
After the leak test, apply
insulating material tightly
so that there is no gap.
<Outdoor unit>
Drain hose
(I) (or soft PVC hose, 15 mm inner
dia. or hard PVC pipe VP16)
Seal the wall hole
gap with putty (H).
2
2
1
(A)
(B)
(C)
(D)
(E)
(F)
(G)
(H)
Wall hole cover (D)
Cut off the
H[WUDOHQJWK
80 mm
or mo
re
1
(5) Battery (AAA) for (6)
(6) Wireless remote controller
(7)
63 mm or more/
115 mm or more for
left and left back piping (using spacer)
ACCESSORIES
Check the following parts before installation.
<Indoor unit>
1
1
Open two sides of
left, right, or rear
side.
* Note:
Place indoor/outdoor unit connecting wire (A)
and power supply cord (K) at least 1 m away
from the TV antenna wire.
mm
100more
or
100
m
or m
orem
)
C35
mm
/200
100more
or
25/G
(GC
350
or m
m
orem
Units should be installed by licensed contractor Appearance of the outdoor unit may differ from some
models.
according to local code requirements.
When the piping is to be
attached to a wall containing metals (tin plated) or
metal netting, use a chemically treated wooden piece
20 mm or thicker between
the wall and the piping or
wrap 7 to 8 turns of insulation vinyl tape around the
piping.
7RXVHH[LVWLQJSLSLQJSHUform COOL operation for
30 minutes and pump down
before removing the old air
FRQGLWLRQHU5HPDNHÀDUH
according to the dimension
for new refrigerant.
Air inlet
Air outlet
4-10 mm × 16/21 mm slot
Drain piping for outdoor unit
• Provide drain piping before indoor
and outdoor piping connection.
• Connect drain hose (I) I.D.15 mm
as shown in the illustration.
• Make sure to provide drain piping with a downhill grade for easy
GUDLQÀRZ
Note:
Do not use drain socket (8) in cold
regions. Drain may freeze and make
the fan stop.
(8)
(I)
2. INDOOR UNIT INSTALLATION
2-1. FIXING OF INSTALLATION PLATE
‡ )LQGDVWUXFWXUDOPDWHULDOVXFKDVDVWXGLQWKHZDOODQG¿[LQVWDOODWLRQSODWHKRUL]RQWDOO\ZLWK¿[LQJVFUHZV
‡ 7R SUHYHQW LQVWDOODWLRQ SODWH IURP YLEUDWLQJ EH VXUH WR LQVWDOO WKH ¿[LQJ VFUHZV LQ
WKH KROHV LQGLFDWHG LQ WKH LOOXVWUDWLRQ )RU DGGHG VXSSRUW ¿[LQJ VFUHZV PD\ DOVR EH
installed in other holes.
• When bolts recessed in the concrete wall are to be utilized, secure installation plate (1)
using 11 × 20 · 11 × 26 oval hole (450 mm pitch).
• If the recessed bolt is too long, change it for a shorter one available in the market.
Terminal block
Wall
2-2. WALL HOLE DRILLING
VA clamp
1) Determine the wall hole position.
2) Drill a dia. 65 mm hole. The outdoor side should be
5 to 7 mm lower than the indoor side.
3) Insert wall hole sleeve (C).
Ceiling
Bind the line to the center hole.
Installation plate (1)
5) Firmly tighten the terminal screws to prevent them from loosening. After tightening, pull
WKHZLUHVOLJKWO\WRFRQ¿UPWKDWWKH\GRQRWPRYH
6) Secure indoor/outdoor unit connecting wire (A) and the earth wire with the VA clamp.
Never fail to hook the left claw of the VA clamp. Attach the VA clamp securely.
)L[LQJVFUHZ
Outdoor
side
63 mm or more
115 mm or more for left and left
back piping (using spacer)
Lead wire
Level
Indoor/outdoor unit connecting wire (A)
80 mm or
more
80 mm or
more
Wall
Wall
• Make earth wire a little longer than
others. (More than 60 mm)
‡ )RUIXWXUHVHUYLFLQJJLYHH[WUDOHQJWK
to the connecting wires.
Indoor terminal block
Earth wire
(green/yellow)
Indoor/outdoor unit
connecting wire (A)
)L[LQJVFUHZ
Align the plumb
line with the
mark .
Insert
the
scale. *
Align the
scale with
the line. *
Center of dia.
65 mm hole
Plumb
* Same for left hole.
Outdoor terminal block
2-3. CONNECTING WIRES FOR INDOOR UNIT
You can connect indoor/outdoor lead wire without removing the front panel.
1) Open the front panel.
2) Remove VA clamp.
3) Pass indoor/outdoor unit connecting wire (A) from the back of the indoor unit and process the end of the wire.
/RRVHQWHUPLQDOVFUHZDQGFRQQHFW¿UVWWKHHDUWKZLUHWKHQLQGRRURXWGRRUXQLWFRQQHFWLQJZLUH$WRWKHWHUPLQDOEORFN%HFDUHIXOQRWWRPDNHPLVZLULQJ)L[WKHZLUH
WRWKHWHUPLQDOEORFNVHFXUHO\VRWKDWQRSDUWRILWVFRUHLVDSSHDUHGDQGQRH[WHUQDO
force is conveyed to the connecting section of the terminal block.
2-4. PIPE FORMING AND DRAIN PIPING
Pipe Forming
• Place the drain hose below the refrigerant piping.
• Make sure that the drain hose is not heaved or snaked.
• Do not pull the hose when applying the tape.
• When the drain hose passes the room, be sure to wrap
insulation material (obtainable at a store) around it.
Liquid pipe
Gas pipe
Indoor/outdoor unit
connecting wire (A)
Felt tape (7)
Piping tape (G)
Rear, right, or downward piping
Cut off in case of
1) Put the refrigerant piping and the drain hose
right piping.
together, then firmly apply piping tape (G)
from the end.
Cut off in case of
2) Insert the piping and the drain hose into the
downward piping.
wall hole sleeve (C), and hook the upper part
of the indoor unit on the installation plate (1).
3) Check if the indoor unit is hooked securely on the installation plate (1) by moving
the unit to left and right.
4) Thrust the lower part of the indoor unit into the installation plate (1).
Drain Piping
‡ ,IWKHH[WHQVLRQGUDLQKRVHKDVWRSDVVWKURXJKDURRPEHVXUHWRZUDSLWZLWKFRPmercially sold insulation.
‡ 7KHGUDLQKRVHVKRXOGSRLQWGRZQZDUGIRUHDV\GUDLQÀRZ)LJ
• If the drain hose provided with the indoor unit is too short, connect it with drain hose (I)
that should be provided at your site. (Fig. 2)
• When connecting the drain hose to the hard vinyl chloride pipe, be sure to insert it
securely into the pipe. (Fig. 3)
Drain hose
Drain
hose
Downward
slope
Hard vinyl chloride
pipe I.D. 30 mm
70 cm or
more
Soft hose
I.D. 15 mm
Insert
securely
Different
diameter joint
Fig. 1
Fig. 2
Fig. 3
Do not make drain piping as shown below.
Accumulated
drain water
Do not raise
Tip of drain
hose dipped
in water
Air
Water
leakage
Water
leakage
Waving
Water
leakage
At least
50 mm
gap
Ditch
Left or left-rear piping
Note:
Be sure to reattach the drain
hose and the drain cap in case
of left or left-rear piping.
Otherwise, it could cause drops
of water to drip down from the
drain hose.
Cut off in case of left
piping.
Piping tape (G)
Felt tape (7)
Drain cap
Drain cap
1) Put the refrigerant piping and the drain hose together,
WKHQ¿UPO\DSSO\IHOWWDSHIURPWKHHQG
Felt tape (7) overlap width should be 1/3 the tape
width. Use a bandage stopper at the end of felt tape (7).
2) Pull out the drain cap at the rear right of the indoor unit.
Fig. 1
(Fig. 1)
‡ +ROGWKHFRQYH[VHFWLRQDWWKHHQGDQGSXOOWKH
drain cap.
3) Pull out the drain hose at the rear left of the indoor unit.
(Fig. 2)
Drain hose
• Hold the claw marked by the arrows and pull out the
Fig. 2
drain hose forward.
4) Put the drain cap into the section to which the drain
hose is to be attached at the rear of the indoor unit.
(Fig. 3)
• Insert not sharp-edged tools such as screwdrivers
Drain cap
into the hole at the end of the cap and insert the cap
fully into the drain pan.
Fig. 3
5) Insert the drain hose fully into the drain pan at the rear
Drain hose
right of the indoor unit. (Fig. 4)
• Check if the hose is hooked securely to the projection of its inserting part at the drain pan.
Fig. 4
6) Insert the drain hose into wall hole sleeve (C), and
hook the upper part of indoor unit on installation plate
(1). Then, move the indoor unit completely to the left in
order to make placing the piping in the back space of
the unit easier.
&XWRXWDSLHFHRIFDUGERDUGIURPWKHVKLSSLQJER[UROO
Fig. 5
it up, hook it onto the back rib, and use it as a spacer
to lift the indoor unit. (Fig. 5)
&RQQHFWWKHUHIULJHUDQWSLSLQJZLWKWKHH[WHQVLRQSLSH%
9) Thrust the lower part of the indoor unit into the installation plate (1).
3. OUTDOOR UNIT INSTALLATION
3-1. CONNECTING WIRES FOR OUTDOOR UNIT
1) Open the service panel.
2) Loosen terminal screw, and connect indoor/outdoor unit connecting wire (A) from
WKHLQGRRUXQLWFRUUHFWO\RQWKHWHUPLQDOEORFN%HFDUHIXOQRWWRPDNHPLVZLULQJ)L[
the wire to the terminal block securely so that no part of its core is appeared, and no
H[WHUQDOIRUFHLVFRQYH\HGWRWKHFRQQHFWLQJVHFWLRQRIWKHWHUPLQDOEORFN
3) Firmly tighten the terminal screws to prevent them from loosening. After tightening,
SXOOWKHZLUHVOLJKWO\WRFRQ¿UPWKDWWKH\GRQRWPRYH
4) Connect power supply cord (K).
)L[LQGRRURXWGRRUXQLWFRQQHFWLQJZLUH$DQGSRZHUVXSSO\FRUG.ZLWKWKHFRUG
clamp.
6) Close the service panel securely.
Terminal block
• Make earth wire a little longer
than others. (More than 35 mm)
‡ )RU IXWXUH VHUYLFLQJ JLYH H[WUD
length to the connecting wires.
Power supply cord (K)
Lead wire
Cord clamp
3-2. FLARING WORK
1) Cut the copper pipe correctly with pipe cutter.
Copper
(Fig. 1, 2)
pipe
2) Completely remove all burrs from the cut cross section of pipe. (Fig. 3)
Fig. 1
• Put the end of the copper pipe to downward direction as you remove burrs in order to avoid to let
burrs drop in the piping.
No good
Good
3) Remove flare nuts attached to indoor and outdoor
units, then put them on pipe having completed burr
removal. (Not possible to put them on after flaring
work.)
4) Flaring work (Fig. 4, 5). Firmly hold copper pipe in
Tilted Uneven Burred
the dimension shown in the table. Select A mm from
Fig. 2
the table according to the tool you use.
5) Check
‡ &RPSDUHWKHÀDUHGZRUNZLWK)LJ
‡ ,IÀDUHLVQRWHGWREHGHIHFWLYHFXWRIIWKHÀDUHGVHFWLRQDQGGRÀDULQJZRUN
again.
Flaring tool
Burr
Copper pipe
Spare reamer
Pipe cutter
Clutch type
Fig. 3
Wing nut type
Fig. 4
Copper pipe
Smooth all
around
Inside is shining without any
scratches.
Die
Flare nut
Pipe diameter
(mm)
ø 6.35 (1/4”)
ø 9.52 (3/8”)
ø12.7 (1/2”)
ø15.88 (5/8”)
Fig. 5
Even length
all around
A (mm)
Nut Clutch type Clutch type
(mm)
tool
tool
for R410A
for R22
17
22
0 to 0.5
1.0 to 1.5
26
29
Fig. 6
Tightening torque
Wing nut
type tool
for R22
N•m
13.7 to 17.7
34.3 to 41.2
49.0 to 56.4
2.0 to 2.5
73.5 to 78.4
1.5 to 2.0
kgf•cm
140 to 180
350 to 420
500 to 575
750 to 800
3-3. PIPE CONNECTION
‡ )DVWHQÀDUHQXWZLWKDWRUTXHZUHQFKDVVSHFL¿HGLQWKHWDEOH
‡ :KHQ IDVWHQHG WRR WLJKW ÀDUH QXW PD\ EUDNH DIWHU D ORQJ SHULRG DQG FDXVH UHIULJHUDQW
leakage.
Indoor unit connection
Connect both liquid and gas pipings to indoor unit.
• Apply a thin coat of refrigeration oil (J) on the seat surface of pipe.
‡ )RUFRQQHFWLRQ¿UVWDOLJQWKHFHQWHUWKHQWLJKWHQWKH¿UVWWRWXUQVRIÀDUHQXW
• Use tightening torque table below as a guideline for indoor unit side union joint section,
DQGWLJKWHQXVLQJWZRZUHQFKHV([FHVVLYHWLJKWHQLQJGDPDJHVWKHÀDUHVHFWLRQ
Outdoor unit connection
Connect pipes to stop valve pipe joint of the outdoor unit in the
same manner applied for indoor unit.
• For tightening, use a torque wrench or spanner and use the
same tightening torque applied for indoor unit.
3-4. INSULATION AND TAPING
1) Cover piping joints with pipe cover.
2) For outdoor unit side, surely insulate every piping including
valves.
3) Using piping tape (G), apply taping starting from the entry of outdoor unit.
• Stop the end of piping tape (G) with tape (with adhesive agent attached).
• When piping have to be arranged through above ceiling, closet or where the temperature and humidity are high, wind additional commercially sold insulation to prevent
condensation.
4. PURGING PROCEDURES, LEAK TEST, AND TEST RUN
4-1. PURGING PROCEDURES AND LEAK TEST
4-2. TEST RUN
1) Remove service port cap of stop valve on the side of the outdoor unit gas pipe. (The
stop valve will not work in its initial state fresh out of the factory, totally closed with cap
on.)
2) Connect gauge manifold valve and vacuum pump to service port of stop valve on the
gas pipe side of the outdoor unit.
1) Insert power supply plug into the power outlet and/or
turn on the breaker. Check that all LED lamps are not
lit. If they are blinking, check that the horizontal vane
is installed correctly. Refer to operating instructions for
details.
2) Press the E.O. SW once for COOL, and twice for HEAT
operation. Test run will be performed for 30 minutes. If
the upper lamp of the operation indicator blinks every 0.5
seconds, inspect the indoor/outdoor unit connecting wire
(A) for mis-wiring. After the test run, emergency mode
(set temperature 24ºC) will start.
3) To stop operation, press the E.O. SW several times until
all LED lamps turn off. Refer to operating instructions for
details.
Compound pressure gauge
*4 to 5 turns
Stop valve cap
(Torque 19.6 to
29.4 N•m, 200
WRNJIƒFP
*Close
*Open
–0.101 MPa (for R410A)
(–760 mmHg)
Pressure gauge
(for R410A)
Stop valve
for LIQUID
Gauge manifold valve
(for R410A)
Handle
Low
Handle High
+H[DJRQDOZUHQFK
Charge hose
(for R410A)
Stop valve for
GAS
Service port cap
(Torque 13.7 to
17.7 N•m, 140 to
180 kgf•cm)
Adapter for preventing the back
ÀRZ
Vacuum pump (or the vacuum
pump with the function to
SUHYHQWWKHEDFNÀRZ
Precautions when using the control valve When attaching the control valve
to the service port, valve core may
GHIRUPRUORRVHQLIH[FHVVSUHVVXUH
is applied. This may cause gas leak.
Service port
A
Control valve
Open
Charge hose
Close
Body
When attaching the control valve to
the service port, make sure that the
valve core is in closed position, and
then tighten part A. Do not tighten
part A or turn the body when valve
core is in open position.
3) Run the vacuum pump. (Vacuumize for more than 15 minutes.)
4) Check the vacuum with gauge manifold valve, then close gauge manifold valve, and
stop the vacuum pump.
5) Leave as it is for one or two minutes. Make sure pointer gauge manifold valve remains
LQWKHVDPHSRVLWLRQ&RQ¿UPWKDWSUHVVXUHJDXJHVKRZV±0SD>*DXJH@±
mmHg).
6) Remove gauge manifold valve quickly from service port of stop valve.
7) After refrigerant pipes are connected and evacuated, fully open all stop valves on both
sides of gas pipe and liquid pipe. Operating without fully opening lowers the performance and this causes trouble.
8) Refer to 1-3., and charge the prescribed amount of refrigerant if needed. Be sure to
charge slowly with liquid refrigerant. Otherwise, composition of the refrigerant in the
system may be changed and affect performance of the air conditioner.
9) Tighten cap of service port to obtain the initial status.
10) Leak test
Emergency
operation switch
(E.O. SW)
Checking the remote (infrared) signal reception
Press the ON/OFF button on the remote controller (6) and check that an electronic sound
is heard from the indoor unit. Press the ON/OFF button again to turn the air conditioner
off.
• Once the compressor stops, the restart preventive device operates so the compressor
will not operate for 3 minutes to protect the air conditioner.
4-3. AUTO RESTART FUNCTION
This product is equipped with an auto restart function. When the power supply is stopped
during operation, such as during blackouts, the function automatically starts operation in
the previous setting once the power supply is resumed. (Refer to the operating instructions for details.)
Caution:
• After test run or remote signal reception check, turn off the unit with the E.O. SW or
the remote controller before turning off the power supply. Not doing so will cause the
unit to start operation automatically when power supply is resumed.
To the user
‡ $IWHULQVWDOOLQJWKHXQLWPDNHVXUHWRH[SODLQWKHXVHUDERXWDXWRUHVWDUWIXQFWLRQ
• If auto restart function is unnecessary, it can be deactivated. Consult the service
representative to deactivate the function. Refer to the service manual for details.
4-4. EXPLANATION TO THE USER
‡ 8VLQJWKH23(5$7,1*,16758&7,216H[SODLQWRWKHXVHUKRZWRXVHWKHDLUFRQGLWLRQHUKRZWRXVHWKHUHPRWHFRQWUROOHUKRZWRUHPRYHWKHDLU¿OWHUVKRZWRUHPRYH
or put the remote controller in the remote controller holder, how to clean, precautions
for operation, etc.)
• Recommend the user to read the OPERATING INSTRUCTIONS carefully.
5. RELOCATION AND MAINTENANCE
5-1. REMOVING AND INSTALLING THE PANEL ASSEMBLY
5-3. PUMPING DOWN
When relocating or disposing of the air conditioner, pump down the system following the
procedure below so that no refrigerant is released into the atmosphere.
1) Connect the gauge manifold valve to the service port of the stop valve on the gas pipe
side of the outdoor unit.
2) Fully close the stop valve on the liquid pipe side of the outdoor unit.
3) Close the stop valve on the gas pipe side of the outdoor unit almost completely so that
it can be easily closed fully when the pressure gauge shows 0 MPa [Gauge] (0 kgf/
cm2).
4) Start the emergency COOL operation.
To start the emergency operation in COOL mode, disconnect the power supply plug
and/or turn off the breaker. After 15 seconds, connect the power supply plug and/or
turn on the breaker, and then press the E.O. SW once. (The emergency COOL
operation can be performed continuously for up to 30 minutes.)
5) Fully close the stop valve on the gas pipe side of the outdoor unit when the pressure
JDXJHVKRZVWR03D>*DXJH@DSSUR[WRNJIFP2).
6) Stop the emergency COOL operation.
Press the E.O. SW twice to stop the operation.
Removal procedure
5HPRYHWKHVFUHZVZKLFK¿[WKHSDQHODVVHPbly.
2) Remove the panel assembly. Be sure to remove
LWVERWWRPHQG¿UVW
Installation procedure
1) Install the panel assembly following the removal
procedure in reverse.
2) Be sure to press the positions as indicated by the
arrows in order to attach the assembly completely
to the unit.
5-2. REMOVING THE INDOOR UNIT
Remove the bottom of the indoor unit from the installation
plate.
When releasing the corner part, release both left and right
bottom corner part of indoor unit and pull it downward and
IRUZDUGDVVKRZQLQWKH¿JXUHRQWKHULJKW
If the above method cannot be used
5HPRYHWKHIURQWSDQHO7KHQLQVHUWKH[DJRQDOZUHQFKHVLQWRWKHVTXDUHKROHVRQWKH
OHIWDQGULJKWVLGHVRIWKHXQLWDQGSXVKWKHPXSDVVKRZQLQWKHIROORZLQJ¿JXUH7KHERWtom of the indoor unit lowers and releases the hooks.
This product is designed and intended for use in the residential, commercial and
light-industrial environment.
The product at hand is based on
the following EU regulations:
• Low Voltage Directive 2006/95/EC
• Electromagnetic Compatibility Directive 2004/108/
EC
Push
Lower
Square hole
HEAD OFFICE: TOKYO BLDG., 2-7-3, MARUNOUCHI, CHIYODA-KU, TOKYO
100-8310, JAPAN
AUTHORIZED REPRESENTATIVE IN EU:
MITSUBISHI ELECTRIC EUROPE B.V.
HARMAN HOUSE, 1 GEORGE STREET, UXBRIDGE, MIDDLESEX UB8 1QQ, U.K.