Samsung IDH4400A User manual

AIR CONDITIONER CONTENTS
1. Product Specifications
2. Installation
3. Operating Instructions
4. Troubleshooting
5. Disassembly and Reassembly
6. Exploded Views and Parts List
7. Schematic Diagrams
SERVICE Manual
DUCT TYPE AIR CONDITIONER
(Cool)
IDH4400A
DH44ZA1(A2)
INDOOR UNIT
ADH4400G
DH44ZA1(A2)
TYPE OUTDOOR UNIT
UDH4400G
DH44ZAX
1-00216A(1)-CO 5/19/01 10:04 AM Page 2

1. Product Specifications
1-1 Table of Specifications
Samsung Electronics 1-1
IDH4400G / DH44ZA1(A2)
UDH4400G / DH44ZAX
45,000
13,200
54,900
16,100
3ø 380-415V~ 50Hz
4.8
5.3
8.5
9.2
940
880
850
790
36
34
32
30
49
48
47
Wave fin coil
3 x 14 x 1.7(900mm)
Siroco
211
390
1,110
650
70/78
900
500
90
65
propeller
114
scroll
ZR61KC-TFD
MODEL
Capacity
Power supply
Power input
Running current
Indoor
unit
Outdoor
unit
INDOOR UNIT
OUTDOOR UNIT
Cooling
Heating
Cooling
Heating
Cooling
Heating
Fan speed
(at 0mmAq)
Air
circulation
Noise Level
(Sound
pressure)
Heat
exchanger
Fan
Dimensions
Weight
Fan speed
Air circulation (Hi)
Sound pressure level
Fan
Compressor
H.H
Hi
Med
Low
H.H
Hi
Med
Low
Hi
Med
Low
type
row x stages x fin pitch
type
motor output
H
W
D
kg
Hi
Low
type
motor output
type
model
Btu/h
W
Btu/h
W
kW
kW
A
A
r.p.m
r.p.m
r.p.m
r.p.m
m3/min
m3/min
m3/min
m3/min
dB(A)
dB(A)
dB(A)
W
mm
mm
mm
Net/Gross
r.p.m.
r.p.m.
m3/min
dB(A)
W
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1-2 Samsung Electronics
Product Specifications
IDH4400G / DH44ZA1(A2)
UDH4400G / DH44ZAX
3.79
Internal
wave fin coil
2 x 48 x 1.7(935/915)
1.122
Capillary
4,000
1,240 x 930 x 385
123/133
27/19
20/15
35/24
7/6
9.52(3/8”)
19.05(3/4”)
Flare
Max. 25
Max. 50
MODEL
Outdoor
unit
Condition
Piping
INDOOR UNIT
OUTDOOR UNIT
Compressor
Heat
exchanger
Refrigerant
Dimensions
Weight
Indoor unit
Outdoor unit
Pipe O.D.
size
Connection method
Between
motor output
protection
type
row x stages x fin pitch
face area
control
(R22)Charge
(H x W x D)
kg
Cool(DB/WB)
Heat(DB/WB)
Cool(DB/WB)
Heat(DB/WB)
Liquid
Gas
Height
Pipe length
kW
m2
g
mm
Net/Gross
˚C
˚C
˚C
˚C
mm(inch)
mm(inch)
m
m
Notice : This model is tested under the external static pressure of 14mmAq
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1-2 Dimensions
• Indoor unit
Samsung Electronics 1-3
1023
Inspection area
1200mm
Inspection area
1200mm
1042(Space of suspension bolts)
698(Space of suspension bolts)
650(Outer dimensions)
Electrical
component box
131
157
936 x 321(Dimension of outlet duct flange)
936 x 321(Dimension of inlet duct flange)
1110(Outer Dimensions)
Pipe connection port
(Liquid pipe:ø9.52mm, Gas pipe:ø19.05mm)
Drain pipe connection port
(Out diameter:ø27.2mm)
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1-4 Samsung Electronics
• Outdoor Unit
Product Specifications
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930
840
385
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2. Installation
2-1 Wiring diagram
Samsung Electronics 2-1
SW2
SW1
CN7
CN9
Receiver &
Display Unit
(Optional)
CN20 Connector
Rotary
Digital
Switch
Jumper
Wire
Transmitter
(Optional)
Float Switch
Drain Pump
(Optional)
Wired
Remote
Controller
(Optional)
DIP Switch
MAIN PCB SUB PCB
220-240V~,
50Hz
Float Switch Power
Communication
Earth
Ventilator
Motor
The following electrical characteristics must be respected.
MODEL
Power
Sub switch
Fuse
Min. size of electric Wires
from/to the indoor/outdoor unit
Size of electric
input wires 20m or less
50m or less
ADH4400G / DH44ZA1(A2)
3Ø, 380-415V~, 50Hz
30A
30A
◆ The power cables are not
supplied with the air conditioner.
The user should purchase them separately.
◆ When connecting the cables to the
main power, you should connect each
cable(L1, L2 & L3) properly.
H07RN-F, 4G, 1.25mm2
H07RN-F, 3G, 2.5mm2
H07RN-F, 3G, 4.0mm2
Note
MAIN POWER
3ø, 380-415V~,
50Hz
MAIN POWER
Drain Pump
Indoor Unit
Outdoor Unit
Centralized
Controller
(Optional)
Cable Specifications
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Samsung Electronics
2-2
Accessories
1. Disassemble the wired remote controller by
using two grooves on the top of it.
2. Secure the rear cover of the wired remote
controller on the wall with two screws.
3. Connect the R1, R2 and R3 terminals in the
wired remote controller to the R1, R2 and R3
terminals on the electrical component box each.
Note : Cable Specifications
4. Reassemble the wired remote controller.
Size of cables
Max. length of electric wires from
the indoor unit to the wired remote
controller
0.3mm2~0.75mm2
100m
Cable type Double-insulation, 3G
Wired
Remote
Controller
Wired Remote
Controller(1)
Cable-Tie(2) Cable Clamp(5) M4 X 16 Tapped
Screw(7)
Caution :
• Do Not keep the wired remote controller cables with a
220V cable because the remote controller cables have
low voltage.
• Do Not input 220V power to the R1, R2 and R3 in the
wired remote controller.
Caution :
• The optional kits must be installed by an installation
specialist.
• Before installing the optional kits, ensure that you have
turned off the main power.
• All optional kits cables should be installed according to
the national wiring rules and you must install them in the
wall not to be touched by users.
2-2 Wired Remote Controller Installation
2-00216A(1)-PR 5/19/01 10:04 AM Page 2-2

Samsung Electronics 2-3
2-3 Wireless Remote Controller Installation
Accessories
1. Remove the receiver & display unit cover by
using the tab on the bottom of it.
2. Open the receiver & display unit.
3. Connect the end of the connector wire to the
receiver & display unit and connect the other
end of the wire to the electrical component box
as shown in figure.
4. Close the receiver & display unit.
5. Secure the receiver & display unit on the wall
with two screws.
6. Reassemble the receiver & display unit cover.
Caution :
•Do NOT keep the receiver & display unit cables with a
220V cable because the remote controller cables have
low voltage.
Caution :
•The optional kits must be installed by an installation specialist.
•Before installing the optional kits, ensure that you have turned
off the main power.
•All optional kits cables should be installed according to the
national wiring rules and you must install them in the wall not
to be touched by users.
Wireless Remote
Controller(1)
Wire Kit
Length : 10m
Battery(2) M4 X 16 Tapped
Screw(2) Remote Controller Holder(1)
Receiver &
Display Unit(1)
Cable-Tie(2) Cable Clamp(5) M4 X 16 Tapped
Screw(7)
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2-4 Samsung Electronics
Accessories
1. Open the centralized controller
cover by using two grooves on
the top of it.
2. Secure the rear cover of the centralized
controller on the wall with two screws.
3. Secure the transmitter
with four spacer supports
into the electrical
component box.
4. Connect the cable from the PCB and to the
transmitter.
And connect another cable from the O1, O2
terminals and to the transmitter as shown in
figure.
5. Connect the O1 and O2 terminals of the
centralized controller to the O1 and O2
terminals on the electrical component box as
shown in figure.
Note : Cable Specifications
6. Connect the power cables.
Note : Cable Specifications
7. Reassemble the centralized controller.
2-4 Centralized Controller Installation
Size of cables 0.75mm2~1.25mm2
Cable type Double-insulation, 2G
Centralized
Controller(1) Cable-Tie(2) Cable Clamp(5) M4 X 16 Tapped Screw(7)
Transmitter(1) Spacer Support(4) Cable-Tie(2) M4 X 16 Tapped
Screw(7)
Electrical component box
Transmitter
Size of cables
Max. length of electric wires from the
indoor unit to the centralized controller
0.75mm2~1.25mm2
1km
Cable type Double-insulation,
2G(Shield Cable)
Centralized
Controller
Caution :
•The optional kits must be installed by an installation
specialist.
•Before installing the optional kits, ensure that you have
turned off the main power.
•All optional kits cables should be installed according to
the national wiring rules and you must install them in the
wall not to be touched by users.
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2-5 Air Filter Installation
1. Remove the air inlet duct flange.
2. Attach the air filter kit to the air inlet side of
indoor unit.
3. To clean the air filter, remove the fixing bracket
on the base of air filter kit, then pull out the
filter.
Note: Setting Up Filter Cleaning Cycle
• Adjust the DIP switch(SW2) in the main PCB to
the desired position referring the table below.
Samsung Electronics 2-5
Switch No.
4
Switch Position
ON
OFF
Filter Cleaning Cycle
1,000 hours
2,000 hours
Caution :
•The optional kits must be installed by an installation
specialist.
•Before installing the optional kits, ensure that you have
turned off the main power.
•The optional air filter has to be cleaned only by an
authorized person or service agent.
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2-6 Samsung Electronics
Care must be taken when installing the drain hose for
the indoor unit to ensure that any condensate water is
correctly drained outside.
1. Open the side of indoor unit.
2. Screw the drain pump with two screws.
Note : When installing the drain pump, leave a 7mm
space between the bottom of the drain pan and
the drain pump.
3. Connect the drain hose to the drain socket.
4. Connect the cable to the electrical component
box as shown in figure.
5. Adjust the DIP switch(SW2) on the main PCB
according to the table below.
Note : Wrap the drain tube outlet with an insulating
materials.
2-6 Drain Pump Installation
Switch No.
2
3
Switch Position
ON
ON
Drain pump
Float
switch
Drain pump
Drain pump hose
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Samsung Electronics 2-7
2-7 Group Control Installation
* You should adjust the option switches in the electrical component box or on the PCB of the wired remote controller.
* Before setting up the option switches, always make sure that you have turned off the main power.
* After adjusting the options, you should supply the power. Otherwise, the options will not be applied.
2-7-1. With Wired Remote Controller
A user can operate up to sixteen air conditioners by using the wired remote controller In this case, the air conditioner can
be controlled by only one wired remote controller connected to the indoor unit and cannot be controlled by the others.
1. Connect the R1, R2 and R3 terminals in the wired remote
controller to the R1, R2 and R3 terminals in any indoor unit
“A” each.
2. Connect the R1 and R3 terminals in the indoor unit “A” to the
R1 and R3 terminals in another indoor unit “B”.
3. Connect the R1 and R3 terminals of “B” to any indoor unit
“C” and connect the others as the same way.
4. Remove the CN20 connectors on the sub PCBs except the unit
connected with remote controller(Adress “0”).
5. Remove the CN20 connectors on the sub PCBs except the unit
connected with remote controller(Address “0”).
6. Adjust the DIP switch No. 2 in the wired remote controller to
“ON” position.
Note : You cannot install the centralized controller when the wired
remote controller for a group has already been installed.
Caution :
When connecting the cables, you must keep these :
• The R1 terminals must be connected to the R1s.
• The R3 terminals must be connected to the R3s.
• Do not connect the R2 terminals to anywhere.
•If you connect R2 terminals, the PCB will be damaged.
0
1
2
3
4
5
6
7
One
Two
Three
Four
Five
Six
Seven
Eight
8
9
A
B
C
D
E
F
Nine
Ten
Eleven
Twelve
Thirteen
Fourteen
Fifteen
Sixteen
Switch No. Number of
indoor unit(s) Switch No. Number of indoor unit(s)
Unit A
Unit B
Unit C
CN20
Connector
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2-8 Samsung Electronics
Product Specifications
2-7-2. With Centralized Controller
A user can turn on/off up to sixteen air conditioners by using the centralized controller.
In this case, the user can turn on/off all air conditioners or a specific air conditioner connected with the centralized
controller. And each air conditioner can be controlled by its own remote controller(s) depending on the setting.
1. Connect the O1 and O2 terminals in the centralized controller to
the O1 and O2 terminals in the indoor unit “A”.
2. Connect the O1 and O2 terminals in the indoor unit “A” to the
O1 and O2 terminals in another indoor unit “B”.
3. Connect the O1 and O2 terminals of “B” to any indoor unit “C”
and connect the others as the same way.
4. Adjust the DIP switch(DS01) in the centralized controller to the
desired position referring to the table below.
5. Adjust the rotary switch on the transmitter to the desired position
referring to the table on page 2-11.
Note : You cannot install the centralized controller when the wired remote
controller for a group has already been installed.
OFF
Switch
Position
OFF
OFF
OFF
OFF
OFF
OFF
OFF
ON
OFF
ON
OFF
The air conditioner is operated by the controller
adjusted last among the wired remote controller,
wireless remote controller and centralized controller.
A user can use wired/wireless remote controller when
the centralized controller is switched on.
And he/she cannot use the remote controller(s) when
the centralized controller is switched off.
The air conditioner(s) can be controlled by only the
centralized controller. The user cannot use the
wired/wireless remote controller in this case.
Switch
No. 1234 Meaning
Centralized
Controller
Unit A Unit B Unit C
Centralized
Controller
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Samsung Electronics 2-9
IMPORTANT : Before setting up the option switches, always make sure that you have turned off the main power.
Main PCB in the Indoor Unit
0
1
2
3
4
5
6
7
One
Two
Three
Four
Five
Six
Seven
Eight
8
9
A
B
C
D
E
F
Nine
Ten
Eleven
Twelve
Thirteen
Fourteen
Fifteen
Sixteen
Turn the arrow to the desired position referring to the table below.
Switch No. Number of
indoor unit(s) Switch No. Number of indoor unit(s)
Rotary Switch(SW1)
A user can operate up to sixteen air conditioners by using the wired remote
controller. Before controlling more than one air conditioner, you should
connect the air conditioner each other. And you must assign addresses to the
air conditioners. For further details on connecting air conditioners.
If the user would like to controller only one air conditioner, make sure that
the arrow is at “0” position.
1
2
3
4
5
Ventilator Fan
Drain Pump
Float Switch
Filter Cleaning Cycle
Indoor Fan Motor Speed
Not installed
Installed
Installed
1,000 hours
Normal
Installed
Not installed
Not installed
2,000 hours
High speed
Adjust the switch to the desired position referring to the table below.
Switch
No. Option Item Switch Position
ON OFF
Optionally
supplied
Not supplied
Note
DIP Switch(SW2)
Caution :
• If you do not adjust the switch when not installing the drain pump, "✳9" error
will occurs. If this happens, adjust the No.2 and No.3 switches to the "OFF"
position.
2-8 Setting Up Option Switches
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2-10 Samsung Electronics
Setting Up Option Switches (Cont.)
Sub PCB in the Indoor Unit
PCB in the wired remote controller
Unit A
(Address 0)
Unit B
(Address 1)
Unit C
(Address 2)
CN20 Connector
CN20 Connector
Remove the CN20 connector in the sub PCB, if necessary, referring to the
table below. (This procedure is needed only when the user would like to
control a group by using the wired remote controller.)
Note : ◆Up to 16 air conditioners can be controlled with one wired remote
controller.
Note : ◆If the user does not want to control a group, do not remove the
CN20 Connector.
0
1 - F
Connected
Removed
Address Situation of the CN20 Connector
Adjust the DIP switch to the desired position referring to the table below.
Dip Switch(DS01)
1
2
3
4
Type of unit
Basic specification
Using wireless remote controller
Number of air conditioner(s) controlled
by the wired remote controller
Cooling only
-
Can be used
Group
controlling
Heat pump
O
Cannot be used
One indoor unit
controlling
Switch
No. Option Item Switch Position
ON OFF
2-00216A(1)-PR 5/19/01 10:05 AM Page 2-10

Samsung Electronics 2-11
Installation
Centralized Controller
Transmitter
Original Position of Option Switches
DIP Switch(DS01)
OFF
Switch
Position
OFF
OFF
OFF
OFF
OFF
OFF
OFF
ON
OFF
ON
OFF
The air conditioner is operated by the controller
adjusted last among the wired remote controller,
wireless remote controller and centralized controller.
A user can use wired/wireless remote controller when
the centralized controller is switched on.
And he/she cannot use the remote controller(s) when
the centralized controller is switched off.
The air conditioner(s) can be controlled by only the
centralized controller. The user cannot use the
wired/wireless remote controller in this case.
Adjust the DIP switch to the desired position referring to the table below.
Switch
No. 1234 Meaning
Note : You cannot install the centralized controller
when the wired remote controller for a group
has already been installed.
Rotary Switch(DS01)
A user can turn on/off up to sixteen air conditioners by using the centralized controller. To use the controller,
you must assign addresses to the air conditioners. For further details on connecting air conditioners.
If the user would like to controller only one air conditioner, make sure that the arrow is at “0” position.
0
1
2
3
4
5
6
7
One
Two
Three
Four
Five
Six
Seven
Eight
8
9
A
B
C
D
E
F
Nine
Ten
Eleven
Twelve
Thirteen
Fourteen
Fifteen
Sixteen
Turn the arrow to the desired position referring to the table below.
Switch No. Number of
indoor unit(s) Switch No. Number of indoor unit(s)
Note : Before setting up the options, always make sure that you
have switched off the main power.
Note : After adjusting the options, you should supply the power.
Otherwise, the options will not be applied.
The option switches are preset by the manufacturer. Refer to the table below, if necessary.
Main PCB in the
indoor unit
Sub PCB in the indoor unit
Wired Remote Controller
Centralized Controller
Transmitter
Rotary Switch(SW1)
DIP Switch(SW2)
Jumper Wire(SW05)
CN20 Connector
DIP Switch(DS01)
DIP Switch(DS01)
Rotary Switch(DS01)
0
ON
SHORT
Connected
OFF
OFF
0
Option Place Component No. State
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2-12 Samsung Electronics
MEMO
2-00216A(1)-PR 5/19/01 10:05 AM Page 2-12

3. Operating Instructions
3-1 Example of Single unit Operation
Samsung Electronics 3-1
1 chamber wired, wireless remote controller single operation and 1 chamber wireless remote controller +
wired remote controller combination control
Wired Remote Controller Option Switch
Indoor unit
Receiver
& display
unit
Wireless
remote
controller
Outdoor unit
Indoor unit
Wired
remote
controller
Outdoor unit
Indoor unit
Receiver
& display
unit
Wireless
remote
controller
Wired remote
controller
Outdoor unit
Example of 1 chamber single operation
(wired or wireless remote controller) Example of 1 chamber single operation (wireless + wired remote controller)
1. Put off the power.
2. For the combined use of wireless remote
controller and wireless remote controller, put on
the option switch 4 of wired remote controller.
3. Putting off the option switch 4 of wired remote
controller disables the control by wireless remote
controller.
4. Put on the power.
* In case of 1 chamber single operation (wireless remote controller+wired remote controller), both setting of wired remote controller
to MASTER/SLAVE is available.
<To use wired & wireless remote controller simultaneously >
DIP SWITCH NO
1
2
3
4
OPTION ITEM
Type of unit
Indoor unit control
Basic specification
Combined use of
wireless remote
controller
SW ON
Cooling only
Group control
-
Able to operate of wired
remote controller
(SLAVE MODE)
SW OFF
Heat pump
Indoor unit 1 chamber control
-
Disable to operate the
wireless remote controller
(MASTER MODE)
DEFAULT
OFF
OFF
Fixed to OFF
OFF
Caution :
• After resetting the option in the wired remote controller, be
sure to put the power on again so that the set option can
be applied.
2-00216A(1)-PR 5/19/01 10:05 AM Page 3-1

3-2 Samsung Electronics
3-2 Exampe of Group Control Operation
3-2-1 Group Control with wired remote controller
Indoor unit
"A" chamber
Receiver
& Display
unit
Wireless
remote
controller
Outdoor unit
Receiver
& Display
unit
Receiver
& Display
unit
Receiver
& Display
unit
Wired remote
controller
Indoor unit
"B" chamber "C" ~"N" chamber
Wireless
remote
controller
Outdoor unit
Wired remote
controller
"O" chamber
Wireless
remote
controller
Wired remote
controller
"P" chamber
Wireless
remote
controller
Wired remote
controller
Figure. 16 Chamber Group Control (Wireless remote controller + wired remote controller) System
• The 16 chamber remote controller operation by wired remote controller can be simultaneously performed
all for 16 chambers through setting the 16 chambers to one group through one wired remote controller.
• While operated in Group, the control by wireless remote controller installed in all chambers (“A” ~ “P”)
is disabled except the wired remote controller installed in the “A” chamber and the simultaneous use
with the option item, the centralized controller is also disabled.
1. Setting of indoor unit Main PCB
• Put off all of set power installed in each room.
• Remove the centralized controller if any is used
already.
1. Setting of indoor unit Main PCB
• Remove CN20 connector from main PCB of
Indoor unit except the one installed in “A” with
reference of the figure.
• Connect the communicating line from “A”
chamber to “P” chamber.(R1<->R1, R3<->R3)
• Connect the “R1”, “R2” and “R3” of indoor
terminal board installed to the “R1”,”R2”,”R3”
of wired remote controller, respectively.
• Adjust the address of rotary switch of indoor
unit PCB in “A” chamber to “0”.
• Adjust the address of rotary switch of indoor unit
PCB in “B” chamber to “1”. In such a way, adjust
the address of digital switch up to chamber “P”.
• Put on the set power installed in each chamber.
3-2-2 The group operation method by wired remote controller
2-00216A(1)-PR 5/19/01 10:05 AM Page 3-2

Samsung Electronics 3-3
Installation
2. Setting of wired remote controller
• Put off the set power where the wired remote controller is installed.
• Put on the option switch SW 2 of wired remote controller.
• Put on the set power where the wired remote controller is installed.
Caution :
• During the connection, connect the “R1” of indoor unit terminal board installed in each chamber with “R1”.
• During the connection, connect the “R3” of indoor unit terminal board installed in each chamber with “R3”.
• Do not connect the terminal R2 of indoor unit terminal board from “B” to “F” chamber except “A” chamber.
• The option item, centralized controller shall be removed since the simultaneous use with wired remote controller is disable
during the group control.
• Adjust the address of indoor unit rotary switch installed in each chamber so that it might not be duplicated.
Caution :
• The option can be applied when the power is put again after resetting the option of wired remote controller. Be sure to keep the
set power on/off after option setting.
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