Mitsubishi Electric KA50 Installation manual

Mitsubishi Electric KA50 Installation manual
Air-Conditioners
SEZ-KA35, KA50, KA60, KA71VA
INSTALLATION MANUAL
FOR INSTALLER
For safe and correct use, please read this manual and outdoor unit installation manual thoroughly before
installing the air-conditioner unit.
English
E°XEIPI¢IO O¢H°IøN E°KATA™TA™H™
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POUR L’INSTALLATEUR
∂ÏÏËÓÈο
PER L’INSTALLATORE
°π∞ ∞À∆√¡ ¶√À ∫∞¡∂π ∆∏¡ ∂°∫∞∆∞™∆∞™∏
Contents
1.
2.
3.
4.
5.
Safety precautions ...................................................................................
Selecting the installation location .............................................................
Installation diagram & Accessories ..........................................................
Indoor unit installation ..............................................................................
Refrigerant piping work ............................................................................
2
2
3
4
4
6.
7.
8.
9.
10.
Drainage piping work ............................................................................... 6
Electrical work .......................................................................................... 6
Air filter installation ................................................................................... 9
Duct work ............................................................................................... 11
Test run .................................................................................................. 11
1. Safety precautions
•
•
•
•
Please report to or take consent by the supply authority before connection
to the system.
Be sure to read “Safety precautions” before installing the air conditioner.
Be sure to observe the cautions specified here as they include important
items related to safety.
The indications and meanings are as follows.
Warning:
Could lead to death, serious injury, etc.
Warning:
• Do not install it by yourself (customer).
Incomplete installation could cause injury due to fire, electric shock, the unit
falling or leakage of water. Consult the dealer from whom you purchased the
unit or special installer.
• Install the unit securely in a place which can bear the weight of the unit.
When installed in an insufficient strong place, the unit could fall causing injured.
• Use the specified wires to connect the indoor and outdoor units securely and
attach the wires firmly to the terminal board connecting sections so the stress
of the wires is not applied to the sections.
Incomplete connecting and fixing could cause fire.
• Do not use intermediate connection of the power cord or the extension cord
and do not connect many devices to one AC outlet.
It could cause a fire or an electric shock due to defective contact, defective
insulation, exceeding the permissible current, etc.
• Check that the refrigerant gas does not leak after installation has completed.
Caution:
• Perform grounding.
Do not connect the ground wire to a gas pipe, water pipe arrester or telephone
ground wire. Defective grounding could cause an electric shock.
• Do not install the unit in a place where an inflammable gas leaks.
If gas leaks and accumulates in the area surrounding the unit, it could cause
an explosion.
• Install a ground leakage breaker depending on the installation place (where it
is humid).
If a ground leakage breaker is not installed, it could cause an electric shock.
Caution:
Could lead to serious injury in particular environments when operated incorrectly.
• After reading this manual, be sure to keep it together with the instruction
manual in a handy place on the customer’s site.
: Indicates a part which must be grounded.
Warning:
Carefully read the labels affixed to the main unit.
• Perform the installation securely referring to the installation manual.
Incomplete installation could cause a personal injury due to fire, electric shock,
the unit falling or leakage of water.
• Perform electrical work according to the installation manual and be sure to
use an exclusive circuit.
If the capacity of the power circuit is insufficient or there is incomplete electrical work, it could result in a fire or an electric shock.
• Attach the electrical part cover to the indoor unit and the service panel to the
outdoor unit securely.
If the electrical part cover in the indoor unit and/or the service panel in the
outdoor unit are not attached securely, it could result in a fire or an electric
shock due to dust, water, etc.
• Be sure to use the part provided or specified parts for the installation work.
The use of defective parts could cause an injury or leakage of water due to a
fire, an electric shock, the unit falling, etc.
• Ventilate the room if refrigerant leaks during operation.
If the refrigerant comes in contact with a flame, poisonous gases will be released.
• Perform the drainage/piping work securely according to the installation
manual.
If there is a defect in the drainage/piping work, water could drop from the unit
and household goods could be wet and damaged.
• Fasten a flare nut with a torque wrench as specified in this manual.
When fastened too tight, a flare nut may broken after a long period and cause
a leakage of refrigerant.
2. Selecting the installation location
2.1. Indoor unit
•
•
•
•
Where airflow is not blocked.
Where cool air spreads over the entire room.
Where it is not exposed to direct sunshine.
At a distance 1 m or more away from your TV and radio (to prevent picture from
being distorted or noise from being generated).
• In a place as far away as possible from fluorescent and incandescent lights (so the
infrared remote control can operate the air conditioner normally).
2
• Where the air filter can be removed and replaced easily.
Warning:
Mount the indoor unit into a ceiling strong enough to withstand the weight of
the unit.
3. Installation diagram & Accessories
A
■ SEZ-KA35/KA50/KA60/KA71VA
Air inlet (rear side) dimensions
42
930
J
H
215
240
12.5 120
(mm)
Air inlet (bottom side) dimensions
G
J
7×100=700
955
24-ø2.9 holes
450
150
2
77
39
77.5 100
215
7×100=700
955
J
24-ø2.9 holes
600
50
150
1
930
J
25
51
240
120
1016
I
12.5
29
5027
25
PLATE (A)
77.5 100
700
350
1000
680
5
3
38
60
(10) 50
6
40
50
100
7×100=700
880
9×2-ø2.9 holes
9
0
1070
3
20 or more
B
32.5
F
5
D
20
25
94 60
2×2-ø2.9 holes
7
A
C
100
75 170
1100
A
2
270
30
25
(10) 50
108
(1070)
3
8
350
E
2
Fig. 3-1
3.1. Indoor unit (Fig. 3-1)
1
2
3
5
6
7
8
9
0
A
Air inlet (rear side) *Select the either back side or bottom side
Electrical parts box
Suspension bolt pitch
Access door
Service space (It is necessary to maintain a working service area from the ceiling.)
Air inlet (bottom side) *Select the either back side or bottom side
Suspension bolt M10 or 3/8 (procure locally)
Air outlet duct flange
Air outlet
Refrigerant pipe (gas)
B
C
D
E
F
G
H
I
J
Refrigerant pipe (liquid)
Wiring entry
Terminal block
Drain plug R1
Air outlet duct flange
In case of bottom side suction, mount the PLATE (A) on the rear side.
After installation, remove the transportation support PLATE (B).
PLATE (B) × 2
Inlet size
A
B
3.2. Checking the indoor unit accessories (Fig. 3-2)
1
3
Check that the indoor unit is equipped with the following parts and accessories:
A Refrigerant pipe parts
1 Pipe cover (for refrigerant piping joint)
Small diameter × 1
Large diameter × 1
2 Bands for temporary tightening of pipe cover × 4
2
B Remote controller parts
3 Parts contained in the cardboard box × 1
Check the contents and read the explanations provided.
C
4
C Air filter parts
4 Parts contained in the bag × 1
Check the contents and read the explanations provided.
Refrigerant and drainage pipe sizes
Model
SEZ-KA35VA SEZ-KA50VA SEZ-KA60VA SEZ-KA71VA
Refrigerant Liquid OD ø6.35 (1/4") OD ø6.35 (1/4") OD ø6.35 (1/4")
pipe
Gas
Drainage pipe
OD ø9.52(3/8")
OD ø12.7 (1/2")
OD ø9.52 (3/8")
OD ø15.88 (5/8") OD ø15.88 (5/8")
Hard PVC pipe : OD ø26 (1")
Fig. 3-2
3
4. Indoor unit installation
4.1. Suspension Structure (Give site of suspension
strong structure.)
35
0
4.1.1. Wooden structure (Fig. 4-1)
• Select tie beam (one-story houses) or second-floor girder (two-story houses) as
reinforcement member.
• Use sturdy beams of at least 6 cm square for beam pitch of 90 cm or less or of at
least 9 cm square for beam pitch of 90-180 cm.
70
10
A
B
A
B
C
D
C D
Fig. 4-1
Ceiling
Rafter
Beam
Roof beam
4.1.2. Ferroconcrete structures (Fig. 4-2)
Secure the suspension bolts using the method shown, or use steel or wooden hangers, etc. to install the suspension bolts.
G
E Use inserts rated at 100-150 kg each (procure locally)
F Suspension bolts M10 (3/8") (procure locally)
G Steel reinforcing rod
4.1.3. Installing the suspension bolts
E
• Check the pitch of the suspension bolts.
• Use the ø10 (3/8") suspension bolts (×4, procure locally).
• Adhere strictly to the length of the suspension bolts.
F
Fig. 4-2
c
a
4.2. Suspending the unit (Fig. 4-3)
e
Direct suspension method:
Raise the unit and line it up with the suspension bolts, then secure it using both
nuts.
b
d
a
b
c
d
e
Air outlet
Air intake (selecting the either back side or bottom side.)
Washer (procure locally)
Nuts (procure locally)
Suspension bolts (procure locally)
b
Fig. 4-3
4.3. Transportation support removal (Fig. 4-4)
After installation, completely remove the transportation support because this part
should only be used during transportation.
A 3 screws
B Transportation support
A
B
A
Fig. 4-4
5. Refrigerant piping work
1
SEZ-KA35:ø6.35
SEZ-KA50:ø6.35
SEZ-KA60:ø6.35
SEZ-KA71:ø9.52
5.1. Refrigerant pipe (Fig. 5-1)
Piping preparation
2
SEZ-KA35:ø9.52
SEZ-KA50:ø12.7
SEZ-KA60:ø15.88
SEZ-KA71:ø15.88
• Refrigerant pipes of 3, 5, 7, 10 and 15 m are available as optional items.
(1) Table below shows the specifications of pipes commercially available.
1 Indoor unit
2 Outdoor unit
Fig. 5-1
Model
Pipe
SEZKA35VA
For liquid
For gas
For liquid
For gas
For liquid
For gas
For liquid
For gas
SEZKA50VA
SEZKA60VA
SEZKA71VA
Outside diameter
mm
inch
6.35
9.52
6.35
12.7
6.35
15.88
9.52
15.88
1/4
3/8
1/4
1/2
1/4
5/8
3/8
5/8
Min. wall
thickness
Insulation
thickness
Insulation
material
0.8 mm
0.8 mm
0.8 mm
0.8 mm
0.8 mm
1.0 mm
0.8 mm
1.0 mm
8 mm
8 mm
8 mm
8 mm
8 mm
8 mm
8 mm
8 mm
Heat resisting
foam plastic
0.045 specific
gravity
(2) Ensure that the 2 refrigerant pipes are well insulated to prevent condensation.
(3) Refrigerant pipe bending radius must be 10 cm or more.
Caution:
Using careful insulation of specified thickness. Excessive thickness prevents
storage behind the indoor unit and smaller thickness causes dew drippage.
4
5. Refrigerant piping work
b
a
c
d
90°
e
a
b
c
d
e
f
f
Copper tubes
Good
No good
Tilted
Uneven
Burred
Fig. 5-2
• Main cause of gas leakage is defect in flaring work.
Carry out correct flaring work in the following procedure.
5.2.1. Pipe cutting (Fig. 5-2)
• Using a pipe cutter cut the copper tube correctly.
5.2.2. Burrs removal (Fig. 5-3)
b
a
5.2. Flaring work
a
b
c
d
c
d
Burr
Copper tube/pipe
Spare reamer
Pipe cutter
• Completely remove all burrs from the cut cross section of pipe/tube.
• Put the end of the copper tube/pipe to downward direction as you remove burrs in
order to avoid burrs drop in the tubing.
Fig. 5-3
5.2.3. Putting nut on (Fig. 5-4)
a
a Flare nut
b Copper tube
• Remove flare nuts attached to indoor and outdoor unit, then put them on pipe/tube
having completed burr removal.
(not possible to put them on after flaring work)
b
Fig. 5-4
a
A
a
b
c
d
e
e
b
d
b
c
c
Flaring tool
Die
Copper tube
Flare nut
Yoke
5.2.4. Flaring work (Fig. 5-5)
• Carry out flaring work using flaring tool as shown at the right.
Pipe diameter
(mm)
Fig. 5-5
6.35
9.52
12.7
15.88
Dimension
A (mm)
When the tool for R410A is used
Clutch type
0 - 0.5
0 - 0.5
0 - 0.5
0 - 0.5
+0
B -0.4 (mm)
9.1
13.2
16.6
19.7
Firmly hold copper tube in a die in the dimension shown in the table at above.
a B
5.2.5. Check (Fig. 5-6)
b
d
e
f
g
• Compare the flared work with a figure in right side hand.
• If flare is noted to be defective, cut off the flared section and do flaring work again.
h
a
b
c
d
e
c
i
Fig. 5-6
Smooth all around
Inside is shining without any scratches
Even length all around
Too much
Tilted
f
g
h
i
Scratch on flared plane
Cracked
Uneven
Bad examples
5.3. Pipe connection (Fig.5-7)
• Apply a thin coat of refrigeration oil on the seat surface of pipe.
• For connection first align the center, then tighten the first 3 to 4 turns of flare nut.
• Use tightening torque table below as a guideline for indoor unit side union joint section,
and tighten using two wrenches. Excessive tightening damages the flare section.
Copper pipe O.D.
(mm)
ø6.35
ø9.52
ø12.7
ø15.88
Fig. 5-7
g
f c b
h
a
d
e
c
i
c e
a
b
c
d
e
b
f
g
h
i
Indoor unit (main unit)
1 Pipe cover
2 Band
Flare joint
Refrigerant pipe and insulating material (must be supplied locally)
Position the pipe cover so that the end
is in firm contact with the main unit.
Fasten it so that there is no clearance.
Allow no clearance
Separator sheet
Cut off the remainder band
Flare nut O.D.
(mm)
17
22
26
29
Tightening torque
(N·m)
14 - 18
34 - 42
49 - 61
68 - 82
Warning:
Be careful of flying flare nut! (Internally pressurized)
Remove the flare nut as follows:
1. Loosen the nut until you hear a hissing noise.
2. Do not remove the nut until the gas has been completely released (i.e., hissing noise stops).
3. Check that the gas has been completely released, and then remove the nut.
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.
Refrigerant pipe insulation (Fig. 5-8)
(1) Peel the separator sheet off the accompanying pipe cover, and wrap it around the
refrigerant pipe, making sure that the side which is slit faces upwards.
(2) Be sure to fix both ends of the pipe cover using an attachment band (ensure that
the band’s joint faces upwards).
(3) Stick vinyl tape on the joint positions.
Fig. 5-8
5
6. Drainage piping work
6.1. Drainage pipe connection (Fig. 6-1)
Indoor unit’s drainage pipe
H2 H1
• The drainage pipe should be arranged so that the discharge end is lower than the
other end, as shown in the figure opposite.
• Place the trap outside the unit.
• After connecting the drainage pipe, make sure that water is discharged properly
and that there are no leaks.
A
A Drainage piping connection 1 RP male.
B Trap
Outdoor unit drainage pipe connection
B
When drainage piping is necessary, use the drain pan (supplied as an option).
H1 : 50 mm or more
H2 : 1/2 H1 or more
Fig. 6-1
7. Electrical work
7.1. Precautions (Fig. 7-1)
(1) SEZ-KA35, KA50, KA60, KA71VA
Electrical specification
Power supply
(1 phase ~/N, 230V,
50Hz)
A
S1
S2
S3
Input capacity Main Switch/Fuse (A)
SEZ-KA35
SEZ-KA50
SEZ-KA60
SEZ-KA71
10
20
20
20
12
• The compressor will not operate unless the power supply phase connection is correct.
• Grounding protection with a no-fuse breaker (earth leakage breaker [ELB]) is usually installed for D.
• The connection wiring between the outdoor and indoor units can be extended up to
a maximum of 50 meters, and the total extension including the crossover wiring
between rooms is a maximum of 80 m.
B
S1 S2 S3
C
A
B
C
D
E
D
A switch with at least 3.5 mm contact separation in each pole shall be provided by the
air conditioner installation.
* Label each breaker according to purpose (heater, unit etc.).
Indoor unit
Outdoor unit
Wired remote controller
Main switch/fuse
Grounding
For Power supply
D
For Power
supply
A
B
E
A
C
Fig. 7-1
6
A
7. Electrical work
1
4
5
7.2. Indoor wire connection (Fig. 7-2)
Work procedure
1.Remove 2 screws to detach the electric component cover.
2.Route each cable through the wiring intake into the electric component box. (Procure power cable and in-out connecting cable locally and use remote control cable
supplied with the unit.)
3.Securely connect the power cable and the in-out connecting cable and the remote
control cable to the terminal blocks.
4.Secure the cables with clamps inside the electric component box.
5.Attach the electric component cover as it was.
• Fix power supply cable and indoor/outdoor cable to control box by using buffer
bushing for tensile force. (PG connection or the like.)
2
Warning:
• Attach the electrical part cover securely. If it is attached incorrectly, it could
result in a fire, electric shock due to dust, water, etc.
• Use the specified indoor/outdoor unit connecting wire to connect the indoor
and outdoor units and fix the wire to the terminal bed securely so that no
stress is applied to the connecting section of the terminal bed. Incomplete
connection or fixing of the wire could result in a fire.
0
4
• The wiring configuration of the indoor unit’s fan motor is for a 50 Hz power
supply. The wiring must be reconfigured if a 60 Hz power supply is used.
Refer to the wiring diagram for details.
3
6
9
7
8
5
1
2
3
4
5
6
7
8
9
0
Entry for wired remote controller cable
Entry for Indoor-Outdoor connecting cable
Cable clamp
Remote controller terminal
Indoor/Outdoor unit connecting terminal
To wired remote controller
To outdoor unit
Indoor controller
Power board
Earth cable
Fig. 7-2
Indoor terminal block
1 2
2
Earth wire (green/yellow)
4
5
1
Indoor/outdoor unit
connecting wire
3-core 1.5 mm2 or more
6
3
L N
Outdoor terminal block
7
Power supply cord
Fig. 7-3
• Perform wiring as shown in the diagram to the lower left. (Procure the cable locally). (Fig. 7-3)
Make sure to use cables of the correct polarity only.
1 Connecting cable
Cable 3-core 1.5 mm2, in conformity with Design 245 IEC 57.
2 Indoor terminal block
3 Outdoor terminal block
4 Always install an earth wire (1-core 1.5 mm2) longer than other cables
5 Remote controller cable (non-polar)
Cable 2-core 0.3 mm2
The 10 m wire is attached in the remote controller accessory. Max. 500 m
6 Wired remote controller
7 Power supply cord
Caution:
• Use care not to make miswiring.
• Firmly tighten the terminal screws to prevent them from loosening.
• After tightening, pull the wires lightly to confirm that they do not move.
7
7. Electrical work
B
7.3. Remote controller
A
7.3.1. For wired remote controller
30
1) Installing procedures
(1) Select an installing position for the remote controller. (Fig. 7-4)
The temperature sensors are located on both remote controller and indoor unit.
s Procure the following parts locally:
Two piece switch box
Thin copper conduit tube
Lock nuts and bushings
30
30
83.5
46
C
A
E
F
I
G
H
120
C
D
Fig. 7-4
B-1.
B-2.
B
H
H
I
J
I
A Remote controller profile
B Required clearances surrounding the remote controller
C Installation pitch
(2) Seal the service entrance for the remote controller cord with putty to prevent
possible invasion of dew drops, water, cockroaches or worms. (Fig. 7-5)
A For installation in the switch box:
B For direct installation on the wall select one of the following:
• Prepare a hole through the wall to pass the remote controller cord (in order to run
the remote controller cord from the back), then seal the hole with putty.
• Run the remote controller cord through the cutout in the upper case, then seal the
cutout notch with putty similarly as above.
B-1. To lead the remote controller cord from the back of the controller:
B-2. To run the remote controller cord through the upper portion:
(3) For direct installation on the wall
C
D
E
F
Fig. 7-5
G
H
I
J
Wall
Conduit
Lock nut
Bushing
Switch box
Remote controller cord
Seal with putty
Wood screw
2) Connecting procedures (Fig. 7-6)
1 Connect the remote controller cord to the terminal block.
A
A To the terminal block on the indoor unit
B TB6 (No polarity)
2 Set the dip switch No.1 shown below when using two remote controller’s for the
same group.
C Dip switches
B
3) Function selection of remote controller
If two remote controllers are connected, set one to “Main” and the other to “Sub”. For
setting procedures, refer to “Function selection of remote controller” in the operation
manual for the indoor unit.
Fig. 7-6
7.4. Function settings
AB
TB6
7.4.1 Function setting on the unit (Selecting the unit functions)
2
3 4
1
⁄
2
⁄
3
⁄
4
⁄
1
TEMP.
F
E
G
MENU
BACK
PAR-21MAA
MONITOR/SET
ON/OFF
ON/OFF
FILTER
DAY
CLOCK
A
Mode number
Setting number
Refrigerant address
Unit number
1) AUTO RESTART FUNCTION
Indoor controller board
This model is equipped with the AUTO RESTART FUNCTION.
(the DIP switch on the indoor controller board)
When the indoor unit is controlled with the remote controller, the operation mode, set
temperature, and the fan speed are memorized by the indoor controller board. The
auto restart function sets to work the moment the power has restored after power
failure, then, the unit will restart automatically.
SW3
CHECK TEST
OPERATION
CLEAR
B
1
2 3 4
C
D
5 ON
OFF
Power failure automatic recovery
4
OFF : Not available
ON : Available (Initial setting)
* When the power supply returns, the air conditioner will start 3 minutes later.
1
1
Fig. 7-7
8
2
2) Other functions
For wired remote controller only (Fig. 7-7)
Changing the power voltage setting
• Be sure to change the power voltage setting depending on the voltage used.
1 Go to the function setting mode.
Switch OFF the remote controller.
Press the A and B buttons simultaneously and hold them for at least 2
seconds. FUNCTION will start to flash.
2 Use the C button to set the refrigerant address (3) to 00.
3 Press D and [--] will start to flash in the unit number (4) display.
4 Use the C button to set the unit number (4) to 00.
5 Press the E MODE button to designate the refrigerant address/unit number. [--]
will flash in the mode number (1) display momentarily.
6 Press the F buttons to set the mode number (1) to 04.
7 Press the G button and the current set setting number (2) will flash.
Use the F button to switch the setting number in response to the power supply
voltage to be used.
Power supply voltage
240 V
: setting number = 1
220 V, 230 V : setting number = 2
8 Press the MODE button E and mode and the setting number (1) and (2) will
change to being on constantly and the contents of the setting can be confirmed.
9 Press the FILTER A and TEST RUN B buttons simultaneously for at least two
seconds. The function selection screen will disappear momentarily and the air
conditioner OFF display will appear.
7. Electrical work
Function table
Select unit number 00
Mode
Power failure automatic recovery*1
(AUTO RESTART FUNCTION)
Indoor temperature detecting
Settings
Not available
Available
Indoor unit operating average
Set by indoor unit’s remote controller
Remote controller’s internal sensor
Not Supported
Supported (indoor unit is not equipped with outdoor-air intake)
Supported (indoor unit is equipped with outdoor-air intake)
240 V
220 V, 230 V
Energy saving cycle automatically enabled
Energy saving cycle automatically disabled
LOSSNAY connectivity
Power voltage
Auto mode (only for PUHZ)
Select unit numbers 01 to 03 or all units (AL [wired remote controller]/07 [wireless remote controller])
Mode
Settings
Filter sign
100 Hr
2500 Hr
No filter sign indicator
Fan speed
Standard (PLH/PLA)/Silent (PCH/PCA)
High ceiling 1 (PLH/PLA)/Standard (PCH/PCA)
High ceiling 2 (PLH/PLA)/High ceiling (PCH/PCA)
No. of air outlets
4 directions
3 directions
2 directions
Installed options (high-performance filter)
Not supported
Supported
Up/down vane setting
No vanes
Equipped with vanes (vanes angle setup 1)
Equipped with vanes (vanes angle setup 2)
Energy saving air flow
Disabled
(Heating mode)
Enabled
Mode no.
01
02
03
04
05
Mode no.
07
08
09
10
11
12
Setting no. Initial setting
1
*1
2
*1
1
2
3
1
2
3
1
2
1
2
Setting
Setting no. Initial setting
1
2
3
1
2
–
3
1
2
–
3
1
–
2
–
1
2
–
3
1
–
2
–
Setting
*1 For this model, mode no. 1 cannot be set using the remote controller. Set this mode using DIP switch SW3-1 of the indoor controller board.
8. Air filter installation
1
8.1. Confirmation of enclosed parts (Fig. 8-1)
2
• Please ensure all the parts shown below are present before starting installation.
Cut out
3
4
5
1
2
3
4
5
6
Filter × 1
Filter rail × 1
Filter rail × 1
ST. screw (4 × 10) × 14
Clamp × 2
Seal × 2
Hole
Cut out
6
Fig. 8-1
8.2. Filter rail installation (Rear air intake) (Fig. 8-2)
2
A
1
B
3
■ Please select air intake direction A or B
1. Transportation support remove (Throw away).
2. Please attach filter rail 2 as per the diagram (screw × 6).
Please connect rails 2 3 carefully.
3. Please attach filter rail 3 as per the diagram (screw × 6).
Please connect rails 2 3 carefully.
4. Seal 6
Upright position here.
A Control box
B Drain pan
C Air tight seal
Level with edge
A
C
4
C
Fig. 8-2
9
8. Air filter installation
A
8.3. Filter rail installation (Bottom air intake) (Fig. 8-3)
2
1. Transportation support remove (Throw away).
2. Please move the plate position. (Please use the screws removed.)
3. Please attach filter rail 2 as per the diagram (screw × 6).
Please connect rails 2 3 carefully.
4. Please attach filter rail 3 as per the diagram (screw × 6).
Please connect rails 2 3 carefully.
5. Clamp 5 (Attach the clamps 5 with screw × 2)
Upright position here.
6. Seal 6
Upright position here.
1
4
A Control box
C Air tight seal
Level with edge
5
4
5
A
3
C
C
6
Fig. 8-3
A
8.4. Filter installation points (Rear air intake) (Fig. 8-4)
E
1. Insert the filter into rail 2
2. Hook the filter onto rail 3
1
D
A
B
D
E
F
Control box
Drain pan
Filter
Rail 2
Rail 3
2
B
F
Fig. 8-4
8.5. Filter installation points (Bottom air intake)
(Fig. 8-5)
A
1. Insert the filter into rail 2
2. Hook the filter onto rail 3
3. Bend the clamp to hold the filter.
A
D
E
F
G
H
1
2
F
E
D
H
A
G
F
E
Fig. 8-5
10
Control box
Filter 1
Rail 2
Rail 3
Bend
Clamp 5
9. Duct work
In case of rear-side suction
B C
A
N
D O
Use the canvas duct for connecting the indoor unit and the duct. (Fig. 9-1)
Use fireproof material for the duct parts.
Make sure that the duct has sufficient heat insulation.
E
M
K
P
H
I
L
J
F
G
In case of bottom-side suction
E
Q
Fig. 9-1
A
B
C
D
E
F
G
H
I
J
K
L
M
N
O
P
Q
Electrical parts box
Canvas duct
Air outlet flange
Air outlet duct
Filter (Accessory)
Air outlet grille
Air intake grille
Ceiling
Drainage pan
Air intake
Air outlet
Allow clearance to avoid short cycling.
Indoor unit
Earth terminal
Earth cable
850 mm or more
Safety net (procured locally)
Notes:
• The fan and motor are dangerous if handled during operation. For this
reason, be sure to install the indoor unit at least 850 mm from the air intake
grill G.
If it is not possible to put more than 850 mm of distance between the air
intake grill and the indoor unit, install the safety net Q (locally procured).
• Connect the main body of the air conditioner and the duct so that their
potentials are equal.
• Connect an earth cable O from the air outlet flange C to the earth terminal
N. Then, connect another earth cable O from the earth terminal N to the
air outlet duct D.
• Be sure to install an air filter (procure locally) and an air outlet duct.
10.Test run
10.1. Before test run
s After completing installation and the wiring and piping of the indoor and
outdoor units, check for refrigerant leakage, looseness in the power supply
or control wiring, wrong polarity, and no disconnection of one phase in the
supply.
s Use a 500-volt megohmmeter to check that the resistance between the power
supply terminals and ground is at least 1.0 MΩ.
s Do not carry out this test on the control wiring (low voltage circuit) terminals.
Warning:
Do not use the air conditioner if the insulation resistance is less than 1.0 MΩ.
Insulation resistance
After installation or after the power source to the unit has been cut for an extended
period, the insulation resistance will drop below 1 MΩ due to refrigerant accumulating 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.
2. If the insulation resistance is below 1 MΩ, the compressor is faulty or the resistance 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.
• The insulation resistance drops due to accumulation of refrigerant in the compressor. The resistance will rise above 1 MΩ after the compressor is warmed
up for two to three hours.
(The time necessary to warm up the compressor varies according to atmospheric conditions and refrigerant accumulation.)
• To operate the compressor with refrigerant accumulated in the compressor,
the compressor must be warmed up at least 12 hours to prevent breakdown.
4. If the insulation resistance rises above 1 MΩ, the compressor is not faulty.
Caution:
• The compressor will not operate unless the power supply phase connection
is correct.
• Turn on the power at least 12 hours before starting operation.
- 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.
11
10.Test run
F E
C
D B
TEST RUN
COOL, HEAT
˚C
˚C
SIMPLE
TEMP.
ON/OFF
MENU
BACK
ON/OFF
PAR-21MAA
A
FILTER
DAY
MONITOR/SET
CHECK TEST
OPERATION
CLOCK
HG
CLEAR
A ON/OFF button
B Test run display
C Indoor temperature liquid line temperature display
D ON/OFF lamp
E Power display
F Error code display
Test run remaining time display
G Set temperature button
H Mode selection button
I Fan speed button
M TEST button
10.2. Test run
The following 3 methods are available.
10.2.1. Using wired remote controller (Fig. 10-1)
1
2
3
4
5
6
7
8
I M
Fig. 10-1
B
10.3. Self-check
E D
10.3.1. Wired remote controller (Fig. 10-2)
ERROR CODE
B
E
ERROR CODE
TEMP.
Turn on the power at least 12 hours before the test run.
Press the [TEST] button twice. ➡ “TEST RUN” liquid crystal display
Press the [Mode selection] button. ➡ Make sure that wind is blown out.
Press the [Mode selection] button and switch to the cooling (or heating) mode.
➡ Make sure that cold (or warm) wind is blown out.
Press the [Fan speed] button. ➡ Make sure that the wind speed is switched.
Check operation of the outdoor unit fan.
Release test run by pressing the [ON/OFF] button. ➡ Stop
Register a telephone number.
The telephone number of the repair shop, sales office, etc., to contact if an error
occurs can be registered in the remote controller. The telephone number will be
displayed when an error occurs. For registration procedures, refer to the operation manual for the indoor unit.
ON/OFF
1
2
3
4
Turn on the power.
Press the [CHECK] button twice.
Set refrigerant address with [TEMP] button if system control is used.
Press the [ON/OFF] button to stop the self-check.
ERROR CODE
C
MENU
BACK
MONITOR/SET
PAR-21MAA
ON/OFF
FILTER
DAY
CLOCK
CHECK TEST
OPERATION
F
CLEAR
A
B
C
D
CHECK button
Refrigerant address
TEMP. button
IC: Indoor unit
OC: Outdoor unit
E Check code
F Unit address
A
Fig. 10-2
• For description of each check code, refer to the following table.
Check code
P1
P2
P9
E6, E7
P4
P5
PA
P6
EE
P8
E4, E5
Fb
E0, E3
E1, E2
E9
UP
U3, U4
UF
U2
U1, Ud
U5
U8
U6
U7
U9, UH
Others
Symptom
Intake sensor error
Pipe (TH2) sensor error
Pipe (TH5) sensor error
Indoor/outdoor unit communication error
Drain sensor error
Drain pump error
Forced compressor error
Freezing/Overheating safeguard operation
Communication error between indoor and outdoor units
Pipe temperature error
Remote controller signal receiving error
Indoor unit control system error (memory error, etc.)
Remote controller transmission error
Remote controller control board error
Indoor/outdoor unit communication error (Transmitting error) (Outdoor unit)
Compressor overcurrent interruption
Open/short of outdoor unit thermistors
Compressor overcurrent interruption (When compressor locked)
Abnormal high discharging temperature/49C worked/insufficient refrigerant
Abnormal high pressure (63H worked)/Overheating safeguard operation
Abnormal temperature of heat sink
Outdoor unit fan safeguard stop
Compressor overcurrent interruption/Abnormal of power module
Abnormality of super heat due to low discharge temperature
Abnormality such as overvoltage or voltage shortage and abnormal synchronous signal to main circuit/
Current sensor error
Other errors (Refer to the technical manual for the outdoor unit.)
Remark
For details, check the LED display
of the outdoor controller board.
*1 If the beeper does not sound again after the initial two beeps to confirm the self-check start signal was received and the OPERATION INDICATOR lamp does not come on,
there are no error records.
*2 If the beeper sounds three times continuously “beep, beep, beep (0.4 + 0.4 + 0.4 sec.)” after the initial two beeps to confirm the self-check start signal was received, the
specified refrigerant address is incorrect.
Check code displayed in the LCD.
12
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 73/23/ EEC
Electromagnetic Compatibility Directive 89/
336/ EEC
Please be sure to put the contact address/telephone number on
this manual before handing it to the customer.
HEAD OFFICE: MITSUBISHI DENKI BLDG., 2-2-3, MARUNOUCHI, CHIYODA-KU, TOKYO 100-8310, JAPAN
BG79U787H01
Printed in Thailand
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