Samsung MH080FXCA4A User manual

ENGLISH
ESPAÑOL
FRANÇAIS
E S F DB98-29160A(1)
Duct Type Series
MH✴✴✴FECA
INSTALLATION
MANUAL
Free Joint Multi Air Conditioner
(Cooling and Heating)
MH***FEEA IM_E_26174 5/11/06 4:23 PM Page 31

Safety Precautions
The following safety precautions must be taken when using your air conditioner.
◆The unit should not be installed by the user. Ask the dealer or authorized
company to install the units except room air conditioners for the U.S.A and
Canada area.
◆If the unit is installed improperly, water leakage, electric shock or fire may
result.
◆Mount with the lowest moving parts at least 2.5 m above the floor or grade
level. (If applicable)
◆The manufacturer does not assume responsibility for accidents or injury
caused by an incorrectly installed air conditioner. If you are unsure about
installation, contact an installation specialist.
◆When installing the built-in type air conditioner, keep all electrical cables
such as the power cable and the connection cord in pipe, ducts, cable
channels e.t.c to protect them against liquids, outside impacts and so on.
◆This appliance is not accessible to the general public. This appliance
should be installed according to the provided installation instruction.
WARNING
INSTALLING THE UNIT
◆If the power cord of this air conditioner is damaged, it must be replaced by
the manufacturer, its service agent or similarly qualified persons in order to
avoid a hazard.
◆The unit must be plugged into an independent circuit if applicable or
connect the power cable to the auxiliary circuit breaker. An all pole
disconnection from the power supply must be incorporated in the fixed
wiring with a contact opening of >9.84 ft.
◆Do not use an extension cord with this product.
◆If the unit is equipped with a power supply cord and a plug, the plug must
be accessible after installation.
◆The air conditioner must be installed in accordance with national wiring
regulations and safety regulations wherever applicable.
POWER SUPPLY LINE,
FUSE OR CIRCUIT
BREAKER
• Risk of electric shock can cause injury or death. • Disconnect all remote
electric power supplies before servicing, installing or cleaning.
• This must be done by the manufacturer or its service agent or a similar
qualified person in order to avoid a hazard.
E-2
MH***FEEA IM_E_26174 5/11/06 4:23 PM Page 2

E-3
ENGLISH
◆PREPARING THE INSTALLATION
■Deciding on Where to Install the Air Conditioner .......................................... 4
■Air Conditioner and Accessories ................................................................... 7
◆INSTALLING THE INDOOR UNIT
■Deciding on Where to Install the Indoor Unit ............................................... 8
■Indoor Unit Installation ................................................................................. 11
■Purging the Unit ........................................................................................... 12
■Connecting the Refrigerant Pipe ................................................................... 13
■Cutting/Flaring the Pipes............................................................................... 14
■Performing Leak Test & Insulation ................................................................ 15
■Drain Pipe and Drain Hose Installation ........................................................ 16
■Connecting the Connection Cord ................................................................. 18
■Increasing Fan Speed .................................................................................. 20
■Assigning Address to Indoor Unit ................................................................. 21
■Additional Functions ..................................................................................... 22
■Filter Replacement (Optional) ...................................................................... 23
■Drain pump Installation(Optional) ................................................................ 25
◆COMPLETING THE INSTALLATION
■Placing the Indoor Unit in Position ............................................................... 27
■Troubleshooting ............................................................................................ 28
Contents
MH***FEEA IM_E_26174 5/11/06 4:23 PM Page 3

Deciding on Where to Install the Air Conditioner
When deciding on the location of the air conditioner with the owner, the following restrictions
must be taken into account.
General
Do NOT install the air conditioner in a location where it will come into contact with the following elements:
◆Combustible gases
◆Saline air
◆Machine oil
◆Sulphide gas
◆Special environmental conditions
If you must install the unit in such conditions, first consult your dealer.
Indoor Unit
◆There must be no obstacles near the air inlet and outlet.
◆Install the indoor unit on a surface that can support its weight.
◆Choose a position that enables the piping and cables to be easily connected to the outdoor unit and the
recommended length of 23 ft to be respected.
◆Leave enough clearance beneath the indoor unit to enable the filters to be removed without hindrance.
◆Maintain sufficient clearance around the indoor unit, as indicated in the diagram on the page opposite.
◆Make sure that the water dripping from the drain hose runs away correctly and safely.
◆You have just purchased a Free Joint Multi air conditioner and it has been installed by
your installation specialist.
◆This device must be installed according to the national electrical rules.
◆Max input power & current is measured according to IEC standard and input power &
current is measured according to ISO standard.
CC
CCAA AAUU UUTT TTII IIOO OONN NN
PREPARING THE INSTALLATION
E-4
MH***FEEA IM_E_26174 5/11/06 4:23 PM Page 4

PREPARING THE INSTALLATION
E-5
ENGLISH
◗ Piping length and the height
Dimension
Composition
1 Room max
length
65.6 ft
A, B
2 Room total max
length
98.4 ft
A + B
Max height between
indoor units
24.6 ft
(h)
Max height between
indoor unit & outdoor unit
49.2 ft
(H)
11.8 inch
minimum
23.6 inch
minimum
23.6 inch
minimum
11.8 inch
minimum
Main power switch
(h) (H)
AB
1, 208-230, 60
Indoor unit Outdoor unit Power supply
Ø, V, Hz
MH050FXCA2A
026/035 026/035
Liquid
1/4”
Gas
3/8”
Unit Outside diameter
MH050FXCA2A
◗ Piping outside diameter
MH***FEEA IM_E_26174 5/11/06 4:23 PM Page 5

PREPARING THE INSTALLATION
E-6
Deciding on Where to Install the Air Conditioner (Continued)
◗ Piping length and the height
Dimension
Composition
1 Room max
length
82 ft
A, B, C, D
4 Room total max
length
229.7 ft
A + B + C + D
Max height between
indoor units
24.6 ft
(h)
Max height between
indoor unit & outdoor unit
49.2 ft
(H)
11.8 inch
minimum
23.6 inch
minimum
23.6 inch
minimum
11.8 inch
minimum
Main power switch
(h) (H)
A B C D
MH080FXCA4A
1, 208-230, 60
Indoor unit Outdoor unit Power supply
Ø, V, Hz
MH080FXCA4A
026/035/052
✴✴ 026/035✴✴
✴✴ 052✴✴
Liquid
1/4”
1/4”
Gas
3/8”
1/2”
Unit Outside diameter
◗ Piping outside diameter
MH***FEEA IM_E_26174 5/11/06 4:23 PM Page 6

INSTALLING THE INDOOR UNIT
E-7
ENGLISH
Air Conditioner and Accessories
Accessories in the Indoor Unit Case
◆The following accessories are supplied with the indoor unit.
Pattern Sheet Insulation A Insulation B Insulation C
Flexible hose
Drain pipe holder Insulation D Insulation cover
band E
Grommet
Installation manual
Cable-Tie
User’s manual
MH***FEEA IM_E_26174 5/11/06 4:23 PM Page 7

PREPARING THE INSTALLATION
E-8
Deciding on Where to Install the Indoor Unit
Indoor Unit
e
rom
r
o 0.2 inch
e
rom
ro
0.2 inch
There must be no obstacles near the air inlet and outlet.
Install the indoor unit on a ceiling that can support its weight.
Maintain sufficient clearance around the indoor unit.
Make sure that the water dripping from the drain hose runs away correctly
and safely.
The indoor unit must be installed in this way, that they are out of public
access. (Not touchable by the users)
After connecting a chamber, insulate the connection part between the indoor
unit and the chamber with t10 or thicker insulation. Otherwise, there can be
air leak or dew from the connection part.
Space Requirements for Indoor Unit
Inhaling from the back : 59.1 inch x 23.6 inch or more
Inhaling from the bottom : 59.1 inch x 31.5 inch or more
(Refer to page 8)
You must have 0.2 inch or more space between the ceiling and the
bottom of indoor unit. Otherwise, the noise from the vibration of indoor
unit may bother the user.
When the ceiling is under construction, the hole for check-up must be
made to take service, clean and repair the unit.
MH***FEEA IM_E_26174 5/11/06 4:23 PM Page 8
59.1 inch
59.1 inch
59.1 inch
59.1 inch

INSTALLING THE INDOOR UNIT
E-9
ENGLISH
938.4 Suspension position
1000 or more
Unit : mm
8✕100=800
860 Air outlet duct flange
477 Suspension position
600
28
28
900
Service space
Inspection hole
22-ø3.2 Hole
All around
Discharge side
182
246
333
OD32
30.5
199
151.6
18
100
72.5 55
115.5
145.5
Suction side
11.9
71 100 10
3✕256=768
Drawing of the indoor unit
✴✴ 026/035 ✴✴
1
2
3
4
5
6
7
8
Liquid pipe connection
Gas pipe connection
Drain pipe connection
Drain pipe connection (Option drain pump)
Power supply/Communicaion connection
Power supply connection
Air discharge grille flange
Air inlet grille flange
ø6.35 (1/4”)
ø9.52 (3/8”)
VP25 (OD ø32, ID ø25)
VP25 (OD ø32, ID ø25)
M8-M10
No. Name Remark
MH***FEEA IM_E_26174 5/11/06 4:23 PM Page 9

E-10
Deciding on Where to Install the Indoor Unit (continued)
INSTALLING THE INDOOR UNIT
1138 Suspension position
1000 oder mehr
Unit : mm
10*100=1000
1060 Air outlet duct flange
477 Suspension position
600
28
28
1100
Service raum
Inspection hole
26-ø3.2 Loch
All around
Discharge side
182
246
333
OD32
30.5
199
151.6 18
100
72.5 55
115.5
144.5
Suction side
12.9
71 100 10
3✕322=966
✴✴052✴✴
1
2
3
4
5
6
7
8
Liquid pipe connection
Gas pipe connection
Drain pipe connection
Drain pipe connection (Option drain pump)
Power supply/Communicaion connection
Power supply connection
Air discharge grille flange
Hook
ø6.35 (1/4”)
ø12.70 (1/2”)
VP25 (OD ø32, ID ø25)
VP25 (OD ø32, ID ø25)
3.8”or M10
No. Name Description
MH***FEEA IM_E_26174 5/11/06 4:23 PM Page 10

E-11
ENGLISH
INSTALLING THE INDOOR UNIT
Indoor Unit Installation
It is recommended to install the Y-joint before installing the indoor unit.
◆Ensure that the ceiling is strong enough to support
the weight of the indoor unit.
Before hanging the unit, test the strength of each
attached suspension bolt.
◆If the length of suspension bolt is more than 1.5m,
it is required to prevent vibration.
CC
CCAA AAUU UUTT TTII IIOO OONN NN
Y ou must install the suspension bolts more than
I four when installing the indoor unit.
CC
CCAA AAUU UUTT TTII IIOO OONN NN
Concrete
Suspension bolt(M8)-field supply
Hole in anchor
Hole in plug
Insert
Ceiling support
Rubber
Drain hose port
When the drain hose is installed to the right.
0.4 inch
Carefully remove the indoor unit from the packing case.
Place the pattern sheet on the ceiling at the spot where you want to install
the indoor unit.
1
2
Insert bolt anchors. Use existing ceiling supports or construct a suitable
support as shown in figure.
3
Install the suspension bolts depending on the ceiling type.
4
Screw eight nuts to the suspension bolts making space for hanging the
indoor unit. Make sure you have space for hanging the indoor unit.
5
Hang the indoor unit to the suspension bolts between two nuts.
6
Screw the nuts to suspend the unit.
7
Adjust level of the unit by using measurement plate for all 4 sides.
8
Since the diagram is made of paper, it may shrink or stretch
slightly due to temperature or humidity. For this reason, before
drilling the holes maintain the correct dimensions between the
markings; refer to pages 9~10.
NN
NNoo oott ttee ee
For proper drainage of condensate, give a 0.12 inch slant to the
left or right side of the unit which will be connected with the
drain hose, as shown in the figure. Make a tilt when you wish
to install the drain pump, too.
NN
NNoo oott ttee ee
Piping must be laid and connected inside the ceiling when sus-
pending the unit. If the ceiling is already constructed, lay the
piping into position for connection to the unit before placing the
unit inside the ceiling.
NN
NNoo oott ttee ee
MH***FEEA IM_E_26174 5/11/06 4:23 PM Page 11

Purging the Unit
To prevent dirt or foreign objects from getting into the pipes
during installation, do NOT remove the pinch pipe completely
until you are ready to connect the piping.
NN
NNoo oott ttee ee
On delivery, the indoor unit is loaded with refrigerant gas.
All this gas must therefore be purged before connecting
the assembly piping.
To purge the inert gas, proceed as follows.
Unscrew the pinch pipe at the end of each refrigerant pipe.
Result: All inert gas escapes from the indoor unit.
E-12
INSTALLING THE INDOOR UNIT
❊ The designs and shape are subject to change
according to the model.
MH***FEEA IM_E_26174 5/11/06 4:23 PM Page 12

Connecting the Refrigerant Pipe
There are two refrigerant pipes of different diameters:
◆
A smaller one for the liquid refrigerant
◆
A larger one for the gas refrigerant
◆
The inside of copper tube must be clean & has no dust.
The connection procedure for the refrigerant pipes varies according to
the exit position of the pipes from the indoor unit, as seen when facing
the indoor in the “A” side.
◆
Liquid refrigerant port
◆
Gas refrigerant port
◆
Drain hose port
Remove the pinch pipe on the pipes and connect the assembly pipes to
each pipe, tightening the nuts, first manually and then with a torque
wrench, a spanner applying the following torque.
1
Must use insulator which is thick enough to cover the refrigerant tube to
protect the condensate water on the outside of pipe falling onto the floor
and the efficiency of the unit will be better.
2
Cut off any excess foam insulation.
3
Be sure that there must be no crack or wave on the bended area.
4
It would be necessary to double the insulation thickness(0.4 inch or more)
to prevent condensation even on the insulator when if the installed area is
warm and humid.
5
If the pipes must be shortened refer to page 14.
NN
NNoo oott ttee ee
Outer Diameter Torque
1/4 inch 10.1~12.3 ft.lb
3/8 inch 18.1~20.3 ft.lb
1/2 inch 27.5~30.4 ft.lb
5/8 inch 31.8~34.7 ft.lb
E-13
ENGLISH
INSTALLING THE INDOOR UNIT
Gas refrigerant port
Drain hose port
A
Refrigerant oil
❊ The designs and shape are subject to change
according to the model.
Torque wrench
Flare nut
Union
Spanner
Liquid
refrigerant port
MH***FEEA IM_E_26174 5/11/06 4:23 PM Page 13

Cutting/Flaring the Pipes
Outer Diameter Torque
1/4 inch 10.1~12.3 ft.lb
3/8 inch 18.1~20.3 ft.lb
1/2 inch 27.5~30.4 ft.lb
5/8 inch 31.8~34.7 ft.lb
Make sure that you have the required tools available (pipe cutter, reamer,
flaring tool and pipe holder).
1
If you wish to shorten the pipes, cut it with a pipe cutter, taking care to ensure
that the cut edge remains at a 90° angle with the side of the pipe. Refer to the
illustrations below for examples of edges cut correctly and incorrectly.
2
To prevent any gas from leaking out, remove all burrs at the cut edge of the
pipe, using a reamer.
3
Slide a flare nut on to the pipe and modify the flare.
4
Check that the flaring is correct, referring to the illustrations below for
examples of incorrect flaring.
5
Align the pipes and tighten the flare nuts first manually and then with
a torque wrench, applying the following torque.
6
Outer Diameter (D) Depth (A)
1/4 inch
3/8 inch
1/2 inch
5/8 inch
0.05 inch
0.07 inch
0.08 inch
0.09 inch
90O
Oblique Rough Burr
Inclined Damaged Surface Cracked Uneven Thickness
CC
CCAA AAUU UUTT TTII IIOO OONN NN
In case of welding the pipe, you must weld with nitrogen
gas blowing.
E-14
INSTALLING THE INDOOR UNIT
MH***FEEA IM_E_26174 5/11/06 4:23 PM Page 14

Performing Leak Test & Insulation
To check for gas leaks on the indoor unit, check the connection part
of each refrigerant pipe by using a leak detector.
Once you have checked that there are no leaks in the system,
you can insulate the piping and hose.
To avoid condensation problems, place T13.0 or thicker Acrylonitrile
Butadien Rubber separately around each refrigerant pipe.
1
Wind insulating tape around the pipes.
2
Finish wrapping insulating tape around the rest of the pipes leading to the
outdoor unit.
3
Always make the seam of pipes face upwards.
NN
NNoo oott ttee ee
Leak Test
Insulation
Insulation
cover pipe
Be sure to overlap
the insulation
Indoor Unit
CC
CCAA AAUU UUTT TTII IIOO OONN NN
Must fit tightly against
body without any gap.
No gap
NBR(T13.0 or thicker)
E-15
ENGLISH
INSTALLING THE INDOOR UNIT
❊ The designs and shape are subject to change
according to the model.
MH***FEEA IM_E_26174 5/11/06 4:23 PM Page 15

Drain Pipe and Drain Hose Installation
E-16
INSTALLING THE INDOOR UNIT
Care must be taken when installing the drain hose for the indoor unit
to ensure that any condensate water is correctly drained outside. The
drain hose can be installed to the right or left side of the base pan.
Install the drain hose as short as possible.
1
Insulate the drain hose and then fix it as a picture.
2
◆Give a 0.12 inch slant to the drain hose for proper drainage of
condensate.
◆Secure the drain hose with the cable-tie not to be separated
from the unit.
◆The drain pump connection port is used when using a drain
pump.
NN
NNoo oott ttee ee
◆Assemble flexible hose with clamps between indoor unit and
drain pipe.
◆Flexible hose clamps should be assembled tightly to prevent
being loosen. If it is loosen, it may cause water drops.
NN
NNoo oott ttee ee
Insert the flexible hose to the drain hose port.1
Fix the flexible hose to the indoor unit with the supplied cable clamp
securely.
(Use the screwdriver to fix the flexible hose securely.)
NN
NNoo oott ttee ee
Install the drain hose so that its length can be as short as possible.
Internal diameter of the drain hose should be the same or slightly bigger
than the external diameter of the drain hose port.
◆ Inner diameter of the drain hose
2
Wrap the drain hose with the insulation drain as shown in figure and secure it.
3
◆Give a slightly slant to the drain hose for proper drainage of
condensate.
◆Fix the flexible hose to the PVC with the supplied cable tie
securely.
NN
NNoo oott ttee ee
1.26 inch(Inner diameter)
Flexible hose
Insulator
Clamp
Cable-tie
✴✴026/035✴✴
✴✴052✴✴
Cable-Tie
Insulation drain hose
Insulation cover drain
Indoor
Unit
CC
CCAA AAUU UUTT TTII IIOO OONN NN
Must fit tightly against
body without any gap.
Cable Clamp
MH***FEEA IM_E_26174 5/11/06 4:23 PM Page 16

E-17
ENGLISH
INSTALLING THE INDOOR UNIT
Prepare a little water about 5 liter.
Open the cover of water supply intake by turning and pulling the cover.
1
Pour water into the the indoor unit as shown in figure.
2
Confirm that the water flows out through the drain hose.
3
Testing the drainage
Water supply intake
If you do not pour water inside the water supply intake,
water may spill from the indoor unit.
NN
NNoo oott ttee ee
Reassemble the cover of water supply intake.
4
✴✴026/035✴✴
✴✴052✴✴
CC
CCAA AAUU UUTT TTII IIOO OONN NN
When not installing the drain pump
Do not give the hose upward gradient after
the connection port.
This will cause water to flow backwards when
the unit is stopped, resulting in water leaks.
Do not apply force to the piping on the unit side
when connecting the drain hose. The hose should
not be allowed to hang loose from its connection to
the unit. Fasten the hose to a wall, frame or other
support as close to the unit as possible.
Upward gradient
Support pieces
Ceiling
Ceiling
0.79 inch or more
21.65 inch or less
Ceiling
Flexible hose
1/100 or more
When installing the drain pump ( 026/035 )
When installing a flexible hose, the difference of
pivot of a drain hose port and a drain hose must
be within 0.79 inch. If the difference of each pivot
is more than 0.79 inch, or a flexible hose is bent
steeply, a flexible hose may leak.
29.5 inch or less
Ceiling
When installing the drain pump ( 052 )
If it is necessary to increase the height of the
drain hose somewhat, the portion directly after
29.5 inch. If it is raised higher than 29.5 inch,
there can be water leaks.
MH***FEEA IM_E_26174 5/11/06 4:23 PM Page 17

Connecting the Connection Cord
The indoor unit is powered from the outdoor unit via the connection cord.
Remove the screw on the electrical component box and remove the cover
plate.
1
Route the connection cord through the side of the indoor unit and connect
the cable to terminals; refer to the figure below.
2
Route the other end of the cable to the outdoor unit through the ceiling &
the hole on the wall.
3
Reassemble the electrical component box cover, carefully tightening the
screw.
4
Between Indoor and Outdoor Connection Cord
Specifications
208-230V~
/60Hz
±10%
2.0mm2
(H07RN-F,
3G)
Ø1.6mm
(2 wires)
0.75~
1.25mm2
(H07RN-F,
2 wires)
0.75~
1.25mm2
(2 wires)
Power Supply (Single Phase)
Power Supply Max/Min(V) Connection Wire
Earth Cable
Communication
Cable
Home
server
CC
CCAA AAUU UUTT TTII IIOO OONN NN
Keep the power cable and the connection cord in a steel pipe to
protect them against liquids, outside impacts and so on.
E-18
INSTALLING THE INDOOR UNIT
MH***FEEA IM_E_26174 5/11/06 4:23 PM Page 18

1(L) 2(N)
1(L) 2(N)
Vc Vc Vw Vw F1 F2 V1 V2 F3 F4
V2
V1
Receiver &
Display Unit
(Optional)
Float Switch
Drain Pump
(Optional)
COM2
(F3, F4)
CN51 BLK
CN31 RED
Wired Remote
Controlle
MAIN PCB
Indoor Unit
Wiring and Communication Cable Connection
Connect the power cable, which is connected with the outdoor unit and supplied by another source,
making sure that the power cable terminal should not be changed.
The F3 and F4 communication cable may be cross-connected, however, it is recommended that they
are connected to the corresponding F3 and F4 terminal.
E-19
ENGLISH
Between Indoor
and Outdoor
Communication
Terminal
Indoor
Power
Terminal
Outdoor Unit
INSTALLING THE INDOOR UNIT
CN33 BLU
CN74 YEL
MH***FEEA IM_E_26174 5/11/06 4:23 PM Page 19

INSTALLING THE INDOOR UNIT
E-20
Increasing Fan Speed
External Static Pressure
If external static pressure is too great(due to long extension of ducts, for
example), the air flow volume may drop too low at each air outlet. This
problem can be solved by increasing the fan speed using the following
procedure.
Remove the screw on the electrical component box and remove the
cover plate.
1
Adjust the DIP switch(SW05) on the main PCB to the “OFF”position.
2
Re-install the cover plate and join the removed screw.
3
Switch No.
K3
Switch Position
ON
OFF
Function
Normal speed
High speed
External Static Pressure (mmAq) 1.0
015201-14021C
-200001-300000
015201-14023E
-200001-300000 015201-140390
-200001-300000 015203-1403F9
-200001-300000
015201-16025F
-200001-300000
011224-1940D5
-200001-300000
015201-160370
-200001-300000
011224-1940E6
-200001-300000
015203-160183
-200001-300000
011224-1940F7
-200001-300000
015203-1603CE
-200001-300000
011224-194208
-200001-300000
2.0 3.0 4.0
MH026FECA
MH035FECA
MH052FECA
K1 K2 K3 K4
SW05
❊ 2.0mmAq is the basic model of this product.
Refer to the table above depending on the installation environment.
MH***FEEA IM_E_26174 5/11/06 4:23 PM Page 20