Samsung UH140GAMC User manual

ENGLISH
INSTALLATION
MANUAL
System Air Conditioner (Cooling and Heating)
E S F I P D G R DB98-26328A(2)
ESPAÑOLFRANÇAISITALIANOPORTUGUÊSDEUTSCH
EΛΛHNIKA
RUSSIAN
UH140GAMC
UH105GAMC

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2
Safety Precautions
The following safety precautions must be taken when using your air conditioner.
WARNING
 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.
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 wir-
ing with a contact opening of >3mm.
  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 simi-
lar qualified person in order to avoid a hazard.

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 Preparation for outdoor unit installation ............................................................... 5
 Air Conditioner and Accessories .......................................................................... 5
 Deciding where to install the outdoor unit ........................................................... 6
 Outdoor unit installation ....................................................................................... 9
 Connecting the cable ........................................................................................... 10
 Connecting the refrigerant pipe ........................................................................... 15
 Connecting up and removing air in the circuit ..................................................... 16
 Cutting / Flaring the pipes .................................................................................... 17
 Performing leak tests ........................................................................................... 18
 Connecting the drain hose to the outdoor unit .................................................... 18
 Insulation .............................................................................................................. 18
 Using stop valve .................................................................................................. 19
 Adding refrigerant /collecting refrigerant ............................................................... 20
 Checking correct grounding ................................................................................. 22
 Setting up option switches ................................................................................... 23
 Testing operations ............................................................................................... 25
 Troubleshooting ................................................................................................... 27
 Parts list ............................................................................................................... 28
Contents

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4
Type of
outdoor unit
Design
Model
A
Type of
outdoor unit
A
UH140GAMC
B
UH105GAMC

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Preparation for outdoor unit installation
Moving the Outdoor Unit by Wire Rope
Fasten the outdoor unit by two 8m or longer wire ropes as
shown at the figure. To prevent from damage or scratches,
insert a piece of cloth between the outdoor unit and rope,
then move the unit.
Plate protection cloth
Wire rope
Air Conditioner and Accessories
The following accessories are supplied with the air conditioner.
The type and quantity may differ depending on the specifications.

Refrigeration pipes and their insulating materials,
power cables are not supplied.
Note
Flare Nuts 3/8"
Rubber Bracket Wire
Drain Plug
Cap Drain A
Installation manual
UH105/140GAMC

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6
Deciding where to install the outdoor unit
  If the outdoor unit is installed at a height, ensure that its base is firmly fixed
in position.
  Make sure that the water dripping from the drain hose runs away correctly
and safely.
Outdoor Unit
  The outdoor unit must not be placed on its side or upside down, as the
compressor lubrication oil will run into the cooling circuit and seriously
damage the unit.
  Choose a location that is dry and sunny, but not exposed to direct sunlight
or strong winds.
  Do not block any passageways or thoroughfares.
  Choose a location where the noise of the air conditioner when running and
the discharged air do not disturb any neighbours.
  Choose a position that enables the pipes and cables to be easily connected
to the indoor unit.
  Install the outdoor unit on a flat, stable surface that can support its weight
and does not generate any unnecessary noise and vibration.
  Position the outdoor unit so that the air flow is directed towards the open
area.
  Maintain sufficient clearance around the outdoor unit, especially from a
radio, computer, stereo system, etc.
Fuse
Outdoor Unit
1.5m or more
Indoor Unit Remote Controller
1m or more
1m or more
1.5m or more
1.5m or more
1.5m or more
Fuse
Stereo
 You have just purchased a system air conditioner and it has
been installed by your installation specialist.
This device must be installed according to the national elec
trical rules.

You have just purchased a system air conditioner and it has
been installed by your installation specialist.

This device must be installed according to the national elec
trical rules.

been installed by your installation specialist.

trical rules.
CAUTION

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Deciding where to install the outdoor unit
150 or more
 When the air outlet is opposite the wall
1500 or more
 When the air outlet is towards the wall
200 or more
150 or more 600 or more
 When 3 sides of the outdoor unit are
blocked by the wall
1500 or more
2000 or more
 The upper part of the outdoor unit and
the air outlet is towards the wall
500 or more
300 or more
 The upper part of the outdoor unit and
the air outlet is opposite the wall
1500 or more 300 or more
 When front and rear side of the outdoor
unit is towards the wall
Unit : mm
Space Requirements for Outdoor Unit
When installing 1 outdoor unit

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8
Deciding on where to install the outdoor unit (Continued)
Unit : mm
1500 or more
 When the air outlet is towards the wall
200 or more
300 or more
1500 or more 600 or more 3000 or more 200 or more3000 or more
600 or more 600 or more
200 or more1500 or more
600 or more 600 or more
600 or more
 When 3 sides of the outdoor unit are blocked by the wall
 When front and rear side of the outdoor unit is towards the wall
 When front and rear side of the outdoor unit is towards the wall
When installing more than 1 outdoor unit

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Outdoor unit installation
Fix the outdoor unit with anchor bolts.

 The anchor bolt must be 20mm or higher from the base surface.
Note
Anchor bolt hole
Type B
Type A
Anchor bolt hole
Unit : mm
The outdoor unit must be installed on a rigid and stable base to avoid any increase in the
noise level and vibration, particularly if the outdoor unit is to be installed in a location
exposed to strong winds or at a height, the unit must be fixed to an appropriate support(wall
or ground).
Piping
To prevent the unit against a wild animal or something, cover part after connecting the pipe.
Outdoor Unit Support
20mm
Anchor bolt
Outdoor
Unit
-->
Base
Surface
Outdoor Unit
Support
  Make a drain outlet around the base for outdoor unit drainage .
If the outdoor unit is installed on the roof , you have to check the
ceiling strength and waterproof the unit.

Make a drain outlet around the base for outdoor unit drainage .

If the outdoor unit is installed on the roof , you have to check the
ceiling strength and waterproof the unit.
ceiling strength and waterproof the unit.
CAUTION
<--
645
878
318 340
364
690
930
373 403
427

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Connecting the cable
Example of Air Conditioner System
1¾ 220V/60HZ
1
1
ELB
ELB
MCCB
MCCB
3
ELB MCCB
1
Outdoor Unit Communication Indoor Unit
Earth
When using ELBs for 3 phase and 1 phase
Connection cord
Indoor Unit
1¾ 220V/60HZ
1
1
ELB
ELB
MCCB
MCCB
3
ELB MCCB
1
Outdoor Unit Communication
Earth
Power cable
Communication cable
When using ELB for 1 phase
3¾ 380-415V~/50Hz
ELB
Outdoor Unit
When using ELB for 3 phase 4 wires
 If an outdoor unit is installed in a place in danger of an electric leak or submergence,
you must install the ELB.
Two electronic cables must be connected to the outdoor unit.
 The connection cord between indoor unit and outdoor unit.
 The power cable between outdoor unit and auxiliary circuit breaker.
 Specially for Russian and European market, before installation, the supply authority should be
consulted to determine the supply system impedance to ensure compliance.

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Connecting the cable
Power Cable Specifications
 For connection cord, use the grade H07RN-F or H05RN-F materials.
Between Indoor and Outdoor Connection Cord Specifications
 The power cable is not supplied with air conditioner.
 For power cable, use the grade H07RN-F or H05RN-F materials.
Type of
outdoor
unit
Power Supply
Earth
Cable
3 Phase Single Phase
Power
Supply
Max/Min
(V)
MCCB ELB
Power
Cable
Length
Power
Supply
Max/Min
(V)
MCCB ELB
Power
Cable
Length
A
380-415V~
/50HZ ±10%
Frame:
30A
Trip:
20A
20A
2.5mm2,
4 Wires
10m
or less
- - - - - -
Ø 1.6mm,
1 Wire
3.0mm2,
4 Wires
20m
or less
B
380-415V~
/50HZ ±10%
Frame:
30A
Trip:
20A
20A
2.0mm2,
4 Wires
10m
or less
- - - - - -
2.5mm2,
4 Wires
20m
or less
Power Supply (Single Phase)
Earth Cable Communication
Cable Home server
Power Supply Max/Min(V) Connection
Wire
220-240V~/50Hz ±10%
2.5mm2
2 wires
Ø 1.6mm
1 wire
0.75~
1.25mm2
2 wires
0.75~
1.25mm2
2 wires

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Connecting the cable (Continued)
Wiring Diagram of Power Cable
When using ELBs for 3 phase and 1 phase
(UH140/105GAMC)
B
MCCB
MCCB
ELB ELB
ELB ELB
MCCB MCCB
ELB
MCCB
(T)
MCCB
MCCB
ELB ELB
MCCB MCCB
Power Supply
Electrical component box
(originally manufactured)
 The diagram of 3 phases and 4 wires
Indoor Unit
Single
Phase
3 Phase
3 Wires
Communication
Cable
Connection cord 3 Phase Power Cable
(AC 380V)
Single
Phase
AC220V
Cable
clamp
A B
Main PCB
 The diagram of 3 phases and 3 wires(changed)
Communication
Cable
Connection cord 3 Phase Power Cable
(AC 380V)
Single
Phase
AC220V
Cable
clamp
A
Main PCB
The product is originally manufactured as 3 phases and 4 wires. To
change it into 3 phases and 3 wires, you must transfer A, B into L,
N terminal, which is supplied as a single phase power supply.
B

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Connecting the cable (Continued)
When using an ELB for 3 phase 4 wires (UH140/105GAMC)
Power Supply
Electrical component box
Indoor Unit
3 Phase
4 Wires
MCCB
ELB
MCCB
Communication
Cable
Connection cord 3 Phase 4 Wires
Power Cable
(AC 380V)
Cable
clamp
Main PCB
A B
You should connect the power cable into the power cable terminal and fasten it
with clamp.
The unbalanced power must be maintained within 2% of supply rating.
- If the power is unbalanced greatly, it may shorten the life of the condenser. If the
unbalanced power is exceeded over 4% of supply rating, the indoor unit is protect
ed, stopped and the error mode indicates.
To protect the product from water and possible shock, you should keep the power
cable and the connection core of the indoor and outdoor units in the iron pipe.
Connet the power cable to the auxiliary circuit breaker.
An all pole disconnection from the power supply must be incorporated in the fi xed
wiring(>=3mm).
When connecting cables, make the cable pass through the cable tube as shown at
the fi gure.
 Must keep the cable in a protection tube.
Keep distances of 50mm or more between power cable and communication
cable.
Communation cable
Connection cord
Power cable
Liquid refrigerant pipeGas refrigerant pipe
Cable tube
CAUTION

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Connecting the cable (Continued)
Wiring Diagram of Connection Cord
34
Indoor Unit
Outdoor Unit
Note:
1. Max. length of communication cable : 120m .
2. Whole length of cable : 240m .
3. Connect the
Connection Cord as seen in picture ,
and the torque of screw is 40~70
kgf•cm .

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Connecting the refrigerant pipe
- Max. length of communication cable : 120m
- Whole length of cable : 240m
L1
H
L0
Refrigerant Piping System
Refrigerant piping system table
Max. allowable length Actual pipe length
L0+ H+ L1
Allowable height length Actual pipe length
H
50m or less
30m or less
Pipe length or height
UH140/105GAMC

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Connecting up and removing air in the circuit
The air in the indoor unit and in the pipe must be purged. If air remains in the
refrigeration pipes, it will affect the compressor, reduce to cooling capacity and
could lead to a malfunction. Refrigerant for air purging is not charged in the
outdoor unit. Use Vacuum Pump as shown at the figure.
Connect each assembly pipe to the appropriate valve on the outdoor unit
and tighten the flare nut.
1
Outer Diameter Torque (kgf•cm)
6.35 mm (1/4") 140~170
9.52 mm (3/8") 250~280
12.70 mm (1/2") 380~420
15.88 mm (5/8") 440~480
19.05 mm (3/4") 990~1210
22.23 mm (7/8") 990~1210
Referring to the illustration opposite, tighten the flare nut on section B first
manually and then with a torque wrench, applying the following torque.
2
Connect the charging hose of low pressure side of manifold gauge to the
packed valve having a service port as shown at the figure.
3
Open the valve of the low pressure side of manifold gauge
counterclockwise.
4
Purge the air from the system using vacuum pump for about 10 minutes.
 Close the valve of the low pressure side of manifold gauge clockwise.
 Make sure that pressure gauge show -0.1MPa(-76cmHg) after about
10 minutes.
This procedure is very important in order to avoid gas leak.
 Turn off the vacuum pump.
 Remove the hose of the low pressure side of manifold gauge.
5
Set valve cork of both liquid side and gas side of packed valve to the
open position.
6
Mount the valve stem nuts and the service port cap to the valve, and
tighten them at the torque of 183kgf•cm with a torque wrench.
7
Check for gas leakage.
 At this time, especially check for gas leakage from the 3-way valve’s
stem nuts(A port), and from the service port cap.
8
Vacuum
pump
Outdoor unit Indoor unit
Gas pipe side
Liquid pipe side
A
B
C
D
B(liquid)
Valve stem

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Cutting / Flaring the pipes
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
Outer Diameter(D) Depth (A)
6.35 mm (1/4") 1.3mm
9.52 mm (3/8") 1.8mm
12.70 mm (1/2") 2.0mm
15.88 mm (5/8") 2.2mm
19.05 mm (3/4") 2.2mm
22.23 mm (7/8") 2.2mm
Slide a flare nut on to the pipe and modify the flare.
4
Outer Diameter Torque (kgf•cm)
6.35 mm (1/4") 140~170
9.52 mm (3/8") 250~280
12.70 mm (1/2") 380~420
15.88 mm (5/8") 440~480
19.05 mm (3/4") 990~1210
22.23 mm (7/8") 990~1210
Align the pipes and tighten the flare nuts first manually and then with
a torque wrench, applying the following torque.
6
Check that the flaring is correct, referring to the illustrations below for
examples of incorrect flaring.
5
90
O
Oblique Rough Burr
Inclined Damaged Surface Cracked Uneven Thickness
CAUTION
In case of welding the pipe, you must weld with nitrogen
gas blowing.


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Insulation
Before completing the installation (insulation of the hose and piping),
you must check that there are no gas leaks.
To check for gas leaks on the... Then, using a leak detector,
check the...
Outdoor unit Valves on sections A and B.
A
B
A
B
A
B
A
B
Performing leak tests
Connecting the drain hose to the outdoor unit
Once you have checked that there are no leaks in the system, you can insu-
late the piping and hose.
To avoid condensation problems, place an insulator around each
refrigerant pipe.
1
  When insulate the pipe, be sure to overlap the insulation.
  You have to use more than 120°C insulation(T13.0 or thicker
Acrylonitrile Butadien Rubber) for the gas refrigerant pipe.
Note
No gap
NBR(T13.0 or thicker)
When using the air conditioner in the heating mode, ice may accumu-
late. During de - icing, the condensed water must be drained off safely.
Consequently, you must install a drain hose on the outdoor unit, following the
instructions below.
Make space more than 50mm between the bottom of the outdoor unit
and the ground for installation of the drain hose, as shown in figure.
1
Insert the drain plug into the hole on the underside of the outdoor unit.
2
Connect the drain hose to the drain plug.
3
Ensure that the drained water runs off correctly and safely.
4
50mm min.
50mm min.
30mm

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E-19
Using stop valve
To Open the Stop Valve
To Close the Stop Valve
Open the cap and turn the stop valve counter clock wise by using a hexagonal
wrench.
1
Turn it until the axis is stopped.
2
Tighten the cap securely.
3
  Do not apply excessive force to the stop valve and always use
special instruments. Otherwise, the stopping box can be
damaged and the back sheet can leaks.
  If the watertight sheet leaks, turn the axis back by half, tighten
the stopping box, then check the leakage again. If there is no
leakage any more, tighten the axis entirely.
Note
Remove the cap.
1
Turn the stop valve clockwise by using a hexagonal wrench.
2
Tighten the cap securely.
4
Tighten the axis until the valve reached the sealing point.
3
When you use the service port, always use a charging hose ,too.
 Check the leakage of refrigerant gas after tightening the cap.
 Must use a spanner and wrench when you open/tighten the stop valve.

When you use the service port, always use a charging hose ,too.

Check the leakage of refrigerant gas after tightening the cap
.

Must use a spanner a
nd wrench when you open
/tighten the s
nd wrench when you open/tighten the snd wrench when you open
top valve.



CAUTION
Service
port
Axis Sealing
point
Cap

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20
Adding refrigerant/ Collecting refrigerant
The outdoor unit is loaded with sufficient refrigerant for the standard
piping. Thus, refrigerant must be added if the piping is lengthened.
This operation can only be performed by a qualified refrigeration
specialist. For quantity of adding refrigerant, refer to page 21.
Check that the stop valve is closed entirely.
1
Charge the refrigerant through the service port of liquid stop valve.
2
  Do not charge the refrigerant through the gas side service port.
Note
If you cannot charge the refrigerant according to the upper steps,
following these:
3-1 Open both liquid stop valve and gas stop valve.
3-2 Operate the air conditioner by pressing the K2 key on the outdoor
unit PCB.
3-3 About 30 minutes later, charge the refrigerant through the service
port of gas stop valve.
3
  If necessary, refer to the pressure table classified by outdoor
temperature.
Note
2
1
8
Ref.
Liquid side stop valve(service port)
Outdoor unit
Indoor unit
Balance Vacuum pump
Gas side stop valve(service port)
Adding refrigerant
Collecting refrigerant
According to the following orders when you want to collect refrigerant.
1. Collect refrigerant by pushing the K2 button on outdoor unit PCB three
times.
2. Fasten the gas side service valve after operating for three minutes.
3. When the outdoor PCB displays P3, compressor stops and you can fasten
the liquid stop service valve.
4. Collecting refrigerant finished.
  When the outdoor temperature is under 5 °C, you'd better not
to collect refrigerant, or it will damage the compressor.
Note