Outdoor Installation Manual
ENGLISH
FRANÇAIS
UH070CAV1
UH105CAV
UH140CAV
ESPAÑOL
INSTALLATION
MANUAL
System Air Conditioner
(Cooling and Heating)
E S F DB98-29516A(3)
Air Marketing Group LLC
141 Kinderkamack Rd, Park Ridge, NJ 07656 Tel: 201-782-1782 Fax: 201-782-1783 Web: www.amgair.com Email: info@amgair.com
Safety Precautions
(Carefully follow the precautions listed below because they are essential to guarantee the safety of the equipment.)
WARNING
• Always disconnect the air conditioner from the power supply before servicing it or
accessing its internal components.
• Verify that installation and testing operations are performed by qualified personnel.
• Verify that the air conditioner is not installed in an easily accessible area.
GENERAL INFORMATION
 Carefully read the content of this manual before installing the air conditioner and store the manual in a safe place in order to be
able to use it as reference after installation.
 For maximum safety, installers should always carefully read the following warnings.
 Store the operation and installation manual in a safe location and remember to hand it over to the new owner if the
air conditioner is sold or transferred.
 This manual explains how to install an indoor unit with a split system with two SAMSUNG units. The use of other types of units
with different control systems may damage the units and invalidate the warranty. The manufacturer shall not be responsible for
damages arising from the use of non compliant units.
 The manufacturer shall not be responsible for damage originating from unauthorized changes or the improper connection of
electric and requirements set forth in the “Operating limits” table, included in the manual, shall immediately invalidate the warranty.
 The air conditioner should be used only for the applications for which it has been designed: the indoor unit is not suitable to be
installed in areas used for laundry.
 Do not use the units if damaged. If problems occur, switch the unit off and disconnect it from the power supply.
 In order to prevent electric shocks, fires or injuries, always stop the unit, disable the protection switch and contact SAMSUNG’s
technical support if the unit produces smoke, if the power cable is hot or damaged or if the unit is very noisy.
 Always remember to inspect the unit, electric connections, refrigerant tubes and protections regularly. These operations should be
performed by qualified personnel only.
 The unit contains moving parts, which should always be kept out of the reach of children.
 Do not attempt to repair, move, alter or reinstall the unit. If performed by unauthorized personnel, these operations may cause
electric shocks or fires.
 Do not place containers with liquids or other objects on the unit.
 All the materials used for the manufacture and packaging of the air conditioner are recyclable.
 The packing material and exhaust batteries of the remote control(optional) must be disposed of in accordance with current laws.
 The air conditioner contains a refrigerant that has to be disposed of as special waste. At the end of its life cycle, the air conditioner
must be disposed of in authorized centers or returned to the retailer so that it can be disposed of correctly and safely.
INSTALLING THE UNIT
IMPORTANT: When installing the unit, always remember to connect first the refrigerant tubes, then the electrical lines.
Always disassemble the electric lines before the refrigerant tubes.
 Upon receipt, inspect the product to verify that it has not been damaged during transport. If the product appears damaged,
DO NOT INSTALL it and immediately report the damage to the carrier or retailer (if the installer or the authorized technician has
collected the material from the retailer.)
 After completing the installation, always carry out a functional test and provide the instructions on how to operate
the air conditioner to the user.
 Do not use the air conditioner in environments with hazardous substances or close to equipment that release free flames to avoid
the occurrence of fires, explosions or injuries.
POWER SUPPLY LINE, FUSE OR CIRCUIT BREAKER
 Always make sure that the power supply is compliant with current safety standards. Always install the air conditioner in compliance
with current local safety standards.
 Always verify that a suitable grounding connection is available.
 Verify that the voltage and frequency of the power supply comply with the specifications and that the installed power is sufficient
to ensure the operation of any other domestic appliance connected to the same electric lines.
 Always verify that the cut-off and protection switches are suitably dimensioned.
 Verify that the air conditioner is connected to the power supply in accordance with the instructions provided in the wiring
diagram included in the manual.
 Always verify that electric connections (cable entry, section of leads, protections…) are compliant with the electric specifications
and with the instructions provided in the wiring scheme. Always verify that all connections comply with the standards applicable
to the installation of air conditioners.
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Air Marketing Group LLC
141 Kinderkamack Rd, Park Ridge, NJ 07656 Tel: 201-782-1782 Fax: 201-782-1783 Web: www.amgair.com Email: info@amgair.com
ENGLISH
Contents

















Preparation for outdoor unit installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Deciding on where to install the outdoor unit . . . . . . . . . . . . . . . . . . . . . . . . . 6
Outdoor unit installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Connecting the cable . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Connecting the refrigerant pipe . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Connecting up and removing air in the circuit . . . . . . . . . . . . . . . . . . . . . . . . 14
Cutting / Flaring the pipes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Performing leak tests . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Connecting the drain hose to the outdoor unit . . . . . . . . . . . . . . . . . . . . . . . 16
Insulation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Using stop valve . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Adding refrigerant . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Transmitter Installation (Optional) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
Pump down Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Checking correct grounding . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
Testing operations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
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Air Marketing Group LLC
141 Kinderkamack Rd, Park Ridge, NJ 07656 Tel: 201-782-1782 Fax: 201-782-1783 Web: www.amgair.com Email: info@amgair.com
Preparation for outdoor unit installation
The air conditioner uses R410A refrigerant.
Type A : UH105CAV/UH140CAV
403
427
4- 12
690
 Heat pump
966
1,036
1,162
1,128
375
78
932
Type B : UH070CAV1
610
12
364
50
17.6
 Heat pump
796.5
312.6
880
52.9
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ENGLISH
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.
Wire rope
Plate protection
cloth
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Air Marketing Group LLC
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Deciding on where to install the outdoor unit
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.
Indoor Unit
Remote Control
Stereo
1m or m
ore
1m or more
Fuse
ore
1.5m or m
Fuse
re
mo e
or
r
m r mo
1.5
o
m
1.5
1.5m
re
or mo
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.
CAUTION
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 electrical rules.
With an outdoor unit having net weight upper then 60kg, we suggest do
not install it suspended on wall, but considering floor standing one.
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141 Kinderkamack Rd, Park Ridge, NJ 07656 Tel: 201-782-1782 Fax: 201-782-1783 Web: www.amgair.com Email: info@amgair.com
ENGLISH
Space Requirements for Outdoor Unit
When installing 1 outdoor unit
2000 or more
600 or more
 When 3 sides of the outdoor unit are
blocked by the wall
1500 or more
300 or more
 The upper part of the outdoor unit and
the air outlet is towards the wall
300 or more
300 or more
600 or more
 When the air outlet is towards the wall
1500 or more
300 or more
 When the air outlet is opposite the wall
1500 or more
300 or more
Unit : mm
 The upper part of the outdoor unit
and the air outlet is opposite the wall
 When front and rear side of the outdoor
unit is towards the wall
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Air Marketing Group LLC
141 Kinderkamack Rd, Park Ridge, NJ 07656 Tel: 201-782-1782 Fax: 201-782-1783 Web: www.amgair.com Email: info@amgair.com
Deciding on where to install the outdoor unit (Continued)
When installing more than 1 outdoor unit
1500 or more
Unit : mm
300 or more
 When the air outlet is towards the wall
300 or more
600 or more
600 or more
600 or more
600 or more
600 or more
1500 or more
300 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
1500 or more
600 or more
3000 or more
3000 or more
300 or more
 When front and rear side of the outdoor unit is towards the wall
CAUTION
Our units must be installed in compliance with the spaces indicated
in the installation manual to ensure either accessibility from both
sides or ability to perform routine maintenance and repairs. The
units’ components must be accessible and that can be disassembled
in conditions of complete safety either for people or things.
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Air Marketing Group LLC
141 Kinderkamack Rd, Park Ridge, NJ 07656 Tel: 201-782-1782 Fax: 201-782-1783 Web: www.amgair.com Email: info@amgair.com
ENGLISH
Outdoor unit installation
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).
Fix the outdoor unit with anchor bolts.
Note
The anchor bolt must be 20mm or higher from the base surface.
���
���
403
427
373
690
���
930
���
Type A
Type B
���
Unit : mm
Anchor bolt hole
Anchor bolt hole
CAUTION
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.
Outdoor
Unit
Outdoor Unit Support
Outdoor Unit
Support
����
Anchor bolt
OUTDOOR UNIT INSTALLED ON THE WALL BY RACK
- Ensure the wall will be able to suspend the weight of rack and outdoor unit;
- Install the rack close to the column as much as possible;
- Install proper grommet in order to reduce noise and residual vibration transferred by outdoor unit towards wall.
Base Surface
Designed to cut off
residual vibration from
outdoor unit to rack. (not
supplied with product)
Soft rubber designed to cut
off vibration from rack to wall.
(not supplied with product)
E-9
Air Marketing Group LLC
141 Kinderkamack Rd, Park Ridge, NJ 07656 Tel: 201-782-1782 Fax: 201-782-1783 Web: www.amgair.com Email: info@amgair.com
Connecting the cable
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.
 Be sure to run the power supply cable and the communication cable through
electrical conduit as seen in the picture .
Protect the power and communication cable using the protection tube indi
vidually.
Make a knockout hole.
After making a knockout hole ,apply rust resisting paint around the hole.
  Secure the cable tube to the outdoor knockout using the CD connector and
bushing.
UH105/140CAV
UH070CAV1
Conduit
CAUTION
Conduit
During the unit installation make first refrigerant connections and then
electrical connections. If unit is uninstalled first disconnect electrical
cables, then refrigerant connections.
Connect the air conditioner to grounding system before performing the
electrical connection.
Example of Air Conditioner System
Power cable
Communication cable
When using ELB for 1 phase
Outdoor Unit
Communication cable
Power cable
Grounding
Indoor Unit
 If an outdoor unit is installed in a place in danger of an electric leak or submergence, you must install the ELB.
Power Cable Specifications
Outdoor
UH070CAV1
UH105CAV
UH140CAV
power cable
MAX. LENGTH
inch²(mm²),wires
ft(m)
Type GL
Power supply
0.007inch²(4mm²), 2
1Φ, 208-230V~/60Hz
0.013inch²(4mm²), 2
A
30
<32.8 ft(10m)
0.019inch²(6mm²), 2
30
40
 The power cable is not supplied with air conditioner.
 For power cable, use the grade H07RN-F or H05RN-F materials.
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ENGLISH
Wiring Diagram of Power Cable
When using ELB for 1 phase
Power Supply
MCCB
 Outdoor unit
Electrical component box
ELB
MCCB
Communication
cable
Connection cord
Cable
clamp
Main power cable
Indoor Unit
CAUTION
You should connect the power cable into the power cable terminal and
fasten it with a 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 protected, stopped and the error mode indicates.
 To protect the product from water and possible shock, you should keep the
power cable and the connection cord of the indoor and outdoor units in the
iron pipe.
 Ensure that main supply connection is made through a switch that disconnects
all poles, with contact gap of a least 0.118 inch(3 mm).
 Must keep the cable in a protection tube.
 Keep distances of 1.968 inch(50 mm) or more between power cable and communication cable.
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Connecting the cable (Continued)
Wiring Diagram of Connection Cord
Indoor Unit
1(L) 2(N) VC VC
F1 F2 V1 V2 F3 F4
Outdoor Unit
F1
F2 1(L) 2(N)
L
N
Outdoor Unit
Note
Ground wire for the indoor unit and outdoor unit connection
cable must be clamped to a soft
copper tin-plated eyelet terminal with M4 screw hole(NOT
SUPPLIED WITH UNIT ACCESSORIES).
Connecting the Power Terminal




Connect the cables to the terminal board using the compressed ring terminal.
Connect the rated cables only.
Connect using a driver which is able to apply the rated torque to the screws.
If the terminal is loose, fire may occur caused by arc.
If the terminal is connected too firmly, the terminal may be damaged.
Tightening Torque (ft.lb (kgf • cm))
M3
0.43(5.9)
1 phase, 208-230V~
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ENGLISH
Connecting the refrigerant pipe
Refrigerant Piping System
L1
H
L0
Pipe length or height
Refrigerant piping system table
Max. allowable
length
Allowable
height length
Actual pipe
length
Actual pipe
length
L0 + H + L1
H
UH070CAV1
UH105CAV
UH140CAV
164.04ft(50m) or less 246.06ft(75m) or less
98.43ft(30m) or less
98.43ft(30m) or less
 Minimum pipe length: equal or more than 9.84ft(3m).
Make at least one round:
It will reduce noise and vibration
The appearance of the unit may be different from the diagram depending on the model.
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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 either reduce cooling/heating
capacity or lead to a malfuction. Refrigerant for air purging is not charged in
the outdoor unit. Use Vacuum Pump as shown at the right figure.
Outdoor unit
A
C
1
Connect each assembly pipe to the appropriate valve on the outdoor unit and
tighten the flare nut.
B
D
2
Referring to the illustration opposite, tighten the flare nut on section B first
manually and then with a torque wrench, applying the following torque.
Outer Diameter
6.35 mm(1/4”)
9.52 mm(3/8”)
12.70 mm(1/2”)
15.88 mm(5/8”)
19.05 mm(3/4”)
3
Torque ( ft.lb )
13.2
31.0
40.6
48.0
73.6
Connect the charging hose of low pressure side of manifold gauge to the
packed valve having a service port as shown at the figure.
 ake the electrical connection and leave the system into
CAUTION M
“stand by mode”. Do not turn on the system.
This is necessary to speed up vacuum operation
(full OPEN position of Electronic Expansion Valve - EEV -).
Vacuum
pump
4
Open the valve of the low pressure side of manifold gauge counterclockwise.
5
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 shows -0.1MPa(-76cmHg) after about
10 minutes.
This procedure is very important to avoid a gas leak.
 Turn off the vacuum pump.
 Remove the hose of the low pressure side of manifold gauge.
6
Set valve cork of both liquid side and gas side of packed valve to the open position.
7
Mount the valve stem nuts and the service port cap to the valve, and tighten
them at the torque of 13.3ft.lb(183kgf.cm) with a torque wrench.
8
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.
 The designs and shape are subject to
change according to the model.
Stem cap
A
(gas)
Valve stem
B
(liquid)
CAUTION
 Connect the indoor and outdoor units using pipes with flared connections (not
supplied). For the lines, use insulated, unwelded, degreased and deoxidized
copper pipe,(Cu DHP type to ISO 1337), suitable for operating pressures of at
least 4200kPa and for a burst pressure of at least 20700kPa.
Copper pipe for hydro-sanitary applications is completely unsuitable.
 For sizing and limits (height difference, line length, max. bends,
refrigerant charge, etc.) see “Connecting refrigerant pipe section”.
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Cutting/Flaring the pipes
1
Make sure that you have the required tools available.
(pipe cutter, reamer, flaring tool and pipe holder)
2
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.
Oblique
Rough
Burr
3
To prevent any gas from leaking out, remove all burrs at the cut edge of the
pipe, using aa reamer.
4
Slide a flare nut on to the pipe and modify the flare.
Depth (A)
Outer Diameter (D)
6.35 mm(1/4”)
9.52 mm(3/8”)
12.70 mm(1/2”)
15.88 mm(5/8”)
19.05 mm(3/4”)
5
Check that the flaring is correct, referring to the illustrations below for
examples of incorrect flaring.
Inclined
6
0.051 inch
0.070 inch
0.078 inch
0.086 inch
0.086 inch
Damaged Surface
Cracked
Uneven Thickness
Align the pipes and tighten the flare nuts first manually and then with a
torque wrench, applying the following torque.
Valve
Flare nut
Wrench(inch)
1/4"
3/8"
1/2"
5/8"
3/4"
0.67
0.87
1.02
1.14
1.42
Valve cap
Pressure port cap
ft.lb Wrench(inch) ft.lb Wrench(inch)
ft.lb
13.2
31.0
40.6
48.0
73.6
0.91
0.91
1.14
1.14
1.5
14.8
14.8
29.5
29.5
29.5
0.7
0.7
0.7
0.7
0.7
11.8~13.3
11.8~13.3
11.8~13.3
11.8~13.3
11.8~13.3
Valve needle
ft.lb
Wrench(inch)
Allen(hex.) 0.2
Allen(hex.) 0.2
Allen(hex.) 0.2
Allen(hex.) 0.2
Allen(hex.) 0.2
6.64
6.64
9.59
9.59
9.59
Pressure port
ft.lb
Wrench(inch)
-
0.25
0.25
0.25
0.25
0.25
CAUTION
In case of welding the pipe, you must weld with nitrogen gas blowing.
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Performing leak tests
LEAK TEST WITH NITROGEN (before opening valves)
In order to detect basic refrigerant leaks, before recreating the vacuum
and recirculating the R410A, it’s responsable of installer to pressurize the whole
system with nitrogen (using a cylinder with pressure reducer) at a pressure
above 30 bar (gauge).
A
B
 The designs and shape are subject to
change according to the model.
LEAK TEST WITH R410A (after opening valves)
Before opening valves, discharge all the nitrogen into the system and create
vacuum. After opening valves check leaks using a leak detector for
refrigerant R410A.
Once you have completed all the connections, check for possible leaks using
leak detector specifically designed for HFC refrigerants.
To check for gas leaks on the...
Then, using a leak detector,
check the...
Outdoor unit
Valves on sections A and B.
Connecting the drain hose to the outdoor unit
When using the air conditioner in the heating mode, ice may accumulate .
During de-icing (defrost operation), the condensed water must be drained off
safely. Consequently, you must install a drain hose on the outdoor unit,
following the instructions below.
1.97inch(50mm)
1
Make space more than 1.97inch(50mm) between the bottom of the outdoor
unit and the ground for installation of the drain hose, as shown in figure.
2
Insert the drain plug into the hole on the underside of the outdoor unit.
3
Connect the drain hose to the drain plug.
4
Ensure that the drained water runs off correctly and safely.
1.18inch(30mm)
Insulation
No gap
Once you have checked that there are no leaks in the system, you can insulate
the piping and hose.
1
NBR(T0.511inch or thicker)
To avoid condensation problems, place an insulator around each
refrigerant pipe.
Note
 When insulate the pipe, be sure to overlap the insulation.
 You have to use more than 248°F(120°C) insulation(T0.511inch(13
mm) or thicker Acrylonitrile Butadien Rubber) for the gas refrigerant pipe.
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141 Kinderkamack Rd, Park Ridge, NJ 07656 Tel: 201-782-1782 Fax: 201-782-1783 Web: www.amgair.com Email: info@amgair.com
ENGLISH
Using stop valve
To Open the Stop Valve
1
2
3
Cap
Open the cap and turn the stop valve counterclockwise by using a hexagonal
wrench.
Turn it until the axis is stopped.
Note
 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.
Service
port
Axis
Sealing point
Tighten the cap securely.
To Close the Stop Valve
1
Remove the cap.
2
Turn the stop valve clockwise by using a hexagonal wrench.
3
Tighten the axis until the valve reached the sealing point.
4
Tighten the cap securely.
CAUTION
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.
E-17
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141 Kinderkamack Rd, Park Ridge, NJ 07656 Tel: 201-782-1782 Fax: 201-782-1783 Web: www.amgair.com Email: info@amgair.com
Adding 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 19.
1
Check that the stop valve is closed entirely.
2
Charge the refrigerant through the service port of liquid stop valve.
Note
Do not charge the refrigerant through the gas side service port.
3
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.
Note
If necessary, refer to the pressure table classified by outdoor
temperature.
Outdoor unit
Gas side stop valve(service port)
Liquid side stop valve(service port)
Ref.
Indoor unit
Balance
1
Vacuum pump
Important information regulation regarding the
refrigerant used
Refrigerant type
GWP value
R410A
1975
 GWP=Global Warming Potential
Contains fluorinated greenhouse gases
covered by the Kyoto Protocol.
Indoor unit

d
a
= (
= (
b
E-18
) lb
) lb

c
CAUTION Inform user if system contains 6.6lb(3kg) or more of fluorinated greenhouse gases. In this case, it has to be checked for leakage at least once
every
12 months, according to regulation n°842/2006. This activity has to be
covered by qualified personnel only.
In case situation above (6.6lb(3kg) or more of R-410A), installer (or recognised person which has responsability for final check) has to provide a
maintenance book, with all the information recorded according to
REGULATION (EC) N° 842/2006 OF THE EUROPEAN PARLIAMENT AND OF
THE COUNCIL of 17 May 2006 on certain fluorinated greenhouse gases.
Please fill in with indelible ink,
Outdoor unit
+ = (
This product contains fluorinated greenhouse gases covered by the Kyoto
Protocol. Do not vent gases into the atmosphere.
) lb
- the factory refrigerant charge of the product,
- the additional refrigerant amount charged in the field and
- + the total refrigerant charge.
on the refrigerant charge label supplied with the product.
Note a. Factory refrigerant charge of the product: see unit name plate
b. Additional refrigerant amount charged in the field
(Refer to the above information for the quantity of refrigerant
replenishment.)
c. Total refrigerant charge
d. Refrigerant cylinder and manifold for charging
 The filled-out label must be adhered in the proximity of the product
charging port (e.g. onto the inside of the stop valve cover).
Air Marketing Group LLC
141 Kinderkamack Rd, Park Ridge, NJ 07656 Tel: 201-782-1782 Fax: 201-782-1783 Web: www.amgair.com Email: info@amgair.com
ENGLISH
How to Calculate the Quantity of Adding Refrigerant
If you have used more than “P”, add "Q" of refrigerant for extra meter.
(For maximum piping length and height, refer to page 13)
The quantity of additional refrigerant is variable according to the installation
situation. Thus, make sure the outdoor unit situation before adding
refrigerant. This operation can only be performed by a qualified refrigeration
specialist.
Model
“Q”(R410A)
“P”
UH070CAV1
0.32oz/ft (30g/m)
16.4ft(5.0m)
UH105CAV
0.43oz/ft (40g/m)
24.6 ft(7.5m)
UH140CAV
0.43 oz/ft (40g/m)
24.6 ft(7.5m)
i.e. 1 indoor unit
Piping length
“a”
Additional charging amount
UH070CAV1
UH105CAV/UH140CAV
16.4ft(5.0m)
-
-
24.6 ft(7.5m)
2.65oz(75g)
-
31.17ft(9.5m)
4.76oz(135g)
2.82 oz(80g)
E-19
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141 Kinderkamack Rd, Park Ridge, NJ 07656 Tel: 201-782-1782 Fax: 201-782-1783 Web: www.amgair.com Email: info@amgair.com
Transmitter Installation (Optional)
Accessories
485 Communication
Cable
DC Power Cable
(12V)
Installation Manual
Case
Cable-tie
DC Power Cable
(5V)
Communication
Cable
Main PCB
Sub PCB
�� �� �� ��
Transmitter
1
Fix the case at with bolts on the side of the control box in the outdoor unit.
(See the picture)
2
Attach the transmitter PCB to the case in the control box in the outdoor
unit, then connect the power and the communication cable between the
transmitter and the outdoor unit; refer to the figure of page 20.
3
If you install a transmitter to an outdoor unit, every indoor unit which is
connected to an outdoor unit can be controlled simultaneously.
4
Each outdoor unit connected to the same centralized controller has its
own transmitter.
UH105/140CAV
Transmitter
Plate Control Low
UH070CAV1
Terminal
side
Transmitter
Bolts spec.
M4
7seg. LED
Display side
7seg. LED
Display side
Bolts spec. M4
Fix the case with bolts
(Control Box in the outdoor unit)
E-20
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141 Kinderkamack Rd, Park Ridge, NJ 07656 Tel: 201-782-1782 Fax: 201-782-1783 Web: www.amgair.com Email: info@amgair.com
ENGLISH
Pump down Procedure
Pump down will be carried out when an evaporator is replaced or when the
unit is relocated in another area.
1
Remove the cap from the low pressure side.
2
Turn the low pressure side valve clockwise to close and connect a pressure
gauge (low pressure side) to the service valve, and open the valve again.
3
Set the unit to cool operation mode. (Check if the compressor is operating.)
4
Turn the high pressure side valve counter clockwise to close.
5
When the pressure gauge indicates “0” turn the low pressure side valve counter
clockwise to close.
6
Stop operation of the air conditioner.
7
Close the each cap of valve.
Note
Low pressure side
(Gas side)
High pressure side
(Liquide side)
Relocation of the air conditioner
 Refer to this procedure when the unit is relocated.
 Carry out the pump down procedure (refer to the details of ‘pump
down’).
 Remove the power cord.
 Disconnect the assembly cable from the indoor and outdoor units.
 Remove the flare nut connecting the indoor unit and the pipe.
 At this time, cover the pipe of the indoor unit and the other pipe using
a cap or vinyl plug to avoid foreign material entering.
 Disconnect the pipe connected to the outdoor unit.
At this time, cover the valve of the outdoor unit and the other pipe
using a cap or vinyl plug to avoid foreign material entering.
 Make sure you do not bend the connection pipes in the middle and
store together with the cables.
 Move the indoor and outdoor units to a new location.
 Remove the mounting plate for the indoor unit and move it to a new
location.
E-21
Air Marketing Group LLC
141 Kinderkamack Rd, Park Ridge, NJ 07656 Tel: 201-782-1782 Fax: 201-782-1783 Web: www.amgair.com Email: info@amgair.com
Checking correct grounding
If the power distribution circuit does not have a grounding or the grounding
does not comply with specifications, an grounding electrode must be installed.
The corresponding accessories are not supplied with the air conditioner.
1
Select an grounding electrode that complies with the specifications given in
the illustration.
2
Determine a suitable location for the grounding electrode:
 In damp hard soil rather than loose sandy or gravel soil that has a
higher grounding resistance
 Away from underground structures or facilities, such as gas pipes,
water pipes, telephone lines and underground cables
 At least two metres away from a lightening conductor grounding
electrode and its cable
Steel core
Carbon
plastic
Terminal M4
PVC-insulated green/
yellow wire
To grounding
screw
19.7inch(50cm)
Note
11.8inch(30cm)
The grounding wire for the telephone line cannot be used to
ground the air conditioner.
3
Finish wrapping insulating tape around the rest of the pipes leading to the
outdoor unit.
4
Install a green/yellow coloured grounding wire:
 If the grounding wire is too short, connect an extension lead, in a
mechanical way and wrapping it with insulating tape (do not bury
the connection)
 Secure the grounding wire in position with staples
Note
If the grounding electrode is installed in an area of heavy traffic,
its wire must be connected securely.
5
Carefully check the installation, by measuring the grounding resistance with a
ground resistance tester. If the resistance is above required level, drive the
electrode deeper into the ground or increase the number of grounding electrodes.
6
Connect the grounding wire to the electrical component box inside of the
outdoor unit.
E-22
Air Marketing Group LLC
141 Kinderkamack Rd, Park Ridge, NJ 07656 Tel: 201-782-1782 Fax: 201-782-1783 Web: www.amgair.com Email: info@amgair.com
ENGLISH
Testing operations
1
Check the power supply between the outdoor unit and the auxiliary circuit
breaker.
Single phase power supply: L, N
Rotary
Switch
����
2
3
4
����
DIP
Switch
Check the indoor unit.
2-1 Check that you have connected the power and communication
cables correctly. (If the power cable and communication cables one
mixed up or connected incorrectly, the PCB will be damaged.)
2-2 Check the thermistor sensor, drain pump/hose, and display are
connected correctly.
����
Press K1 & K2 on the outdoor unit PCB the system will follow this sequence:
K1 push one start Heating test mode  K1 push two test mode stop
K2 push one start Cooling test mode  K2 push two test mode stop
����
Note
 Rotary Switch must be adjusted to"0"position .
DIP Switch must be adjusted to "ON" position .
After 12 minutes of stationary condition check each indoor unit air treatment :
Cooling mode(indoor unit check)Inlet air temp. - Outlet air temp. :
From 50°F(10°C) to 53.6°F(12°C)
Heating mode(indoor unit check)Outlet air temp. - Inlet air temp. :
From 51.8°F(11°C) to 57.2°F(14°C)
In heating mode, the indoor fan motor can remain off to avoid cold air
blown into conditioned space.
Settings of PCB Display of the Outdoor unit
K1
K2
K3
DIS 1
K4
KEY
DIS 2
Display
CHECK
MODE
Function
RESET
DISPLAY
MODE
ITEM NO.
CURRENT DATA DISPLAY
K1
K2
K3
K4
1
Test operation at
heating mode
Test operation at
cooling mode
Reset
Displays Data
2
End
End
Number of
press times
-
-
E-23
Air Marketing Group LLC
141 Kinderkamack Rd, Park Ridge, NJ 07656 Tel: 201-782-1782 Fax: 201-782-1783 Web: www.amgair.com Email: info@amgair.com
Troubleshooting
The table below give indication about self diagnostic routine. Some of error code requires activities exclusively
for Authorized Service Center.
Outdoor unit
If an error occurs during the operation, it is displayed on the outdoor unit PCB.
Display
Content
Measure
Check the communication line for
indoor units, check the power supply
of the communication phase (DC)
Communication time-out
Check the communication line for
error between indoor/outindoor units, check the power supply
door unit 6-packet over error of the communication phase (DC)
Check the temp. sensor of the indoor
Indoor temperature sensor
unit room. Check the indoor PCB con(open/short error)
nector CN21(white)
Check the indoor unit drainage pipe
Indoor unit Eva In sensor
sensor.Check the indoor PCB connec(open/short)
tor CN21 (white)
Indoor unit Communication
Error
Product operation status
in case of error
Outdoor unit compressor/
Outdoor unit fan
Error type
Operation Off
Communication
Error
Operation-off
Communication
Error
Operation-off
Indoor Sensor
Error
Operation-off
Indoor Sensor
Error
Dismount of indoor unit Eva
In sensor
Check the drainage pipe has been dismounted
Operation-off
Indoor Sensor
Error
Secondary detection of
indoor floating switch
Check the indoor unit’s float sensorCheck the indoor PCB connector CN51
(black)
Operation-off
Self Diagnosys
Error
Indoor unit not connected
Check the indoor unit connection.
Check the indoor unit option
Operation-off
Communication
error
• Check the indoor unit connection
• Check the indoor unit option
Operation-off
Check the Main MICOM.Check the
inverter MICOM
-
Communication
error
Operation-off
Outdoor sensor
error
Operation-off
Outdoor sensor
error
Operation-off
Outdoor sensor
error
1min. Time out Comm.
(Display Board : Onboard :
Indoor ↔ Outdoor)
Communication error
between indoor/outdoor
unit INV and Main Micom (1
min.)
Outdoor temperature sensor
Outdoor temperature sensor error
error
Check the connection status of the
Outdoor temperature sensor
sensorCheck the sensor locationCheck
error
the resistance values of sensor
Check the connection status of the
[inverter] Emission temperasensorCheck the sensor locationCheck
ture sensor error
the resistance values of sensor
Communication
error
Excessive temperature emission
Not an error (discharge temp. control)
-
Outdoor unit
protection control error
Power cable connection
error
Check the status of power connection
Operation-off
Outdoor sensor
error
E-24
Air Marketing Group LLC
141 Kinderkamack Rd, Park Ridge, NJ 07656 Tel: 201-782-1782 Fax: 201-782-1783 Web: www.amgair.com Email: info@amgair.com
ENGLISH
Display
Content
Measure
Product operation status
in case of error
Outdoor unit compressor/
Outdoor unit fan
Non-connection error
of indoor and outdoor
Communication wire
(connected to the power
terminal)
Check the status of power connectionCheck the connection status of the
communication line
Operation Off
Self Diagnosys
Error
Operation-off
Self Diagnosys
Error
Outdoor fan 1 error
[inverter] Compressor
operation error
Discharge current error/
PFC over-current error
[inverter] IPM over current error
[inverter] Compressor
rotation error
Check the input power connection
statusCheck the connection status
between the motor and PCB in outdoor unit.Check the fuse of indoor/
outdoor units
Check the connection status of the
compressorCheck the resistance
between different phases in compressor
Check the input powerCheck refrigerant is filledCheck outdoor fan operates
normally
Check refrigerant is filled; Check the
connection status of compressor and
if it operates normally; Check for any
obstacles around indoor/outdoor units
Check the connection status of the
compressor;Check the resistance
between different phases in compressor
Error type
Operation-off
Outdoor unit protection control
error
Operation-off
Outdoor unit protection control
error
Operation-off
Outdoor unit protection control
error
Operation-off
Outdoor unit protection control
error
[inverter] Current sensor
error
Check PCB operates normally
Operation-off
Communication
error
[inverter] DC link voltage
sensor error
Check the connection of input power.
Check the status of RY21 and R2000 of
Inverter PCB
Operation-off
Outdoor unit protection control
error
[inverter] OTP error
Check PCB operates normally
Operation-off
Outdoor unit protection control
error
Outdoor fan 2 error
Check the connection status of input
powerCheck the connection status
of motor and outdoor PCB Check the
fuse of indoor/outdoor unit
Operation-off
Self Diagnosys
Error
Gas leakage error
Check refrigerant is filledCheck the
indoor EVA sensor
Operation-off
Self Diagnosys
Error
Inconsistent volume
Check the indoor unit’s option code
Operation-off
Outdoor unit protection control
error
E-25
Air Marketing Group LLC
141 Kinderkamack Rd, Park Ridge, NJ 07656 Tel: 201-782-1782 Fax: 201-782-1783 Web: www.amgair.com Email: info@amgair.com
Air Marketing Group LLC
141 Kinderkamack Rd, Park Ridge, NJ 07656 Tel: 201-782-1782 Fax: 201-782-1783 Web: www.amgair.com Email: info@amgair.com
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