Samsung NJ***1HXCA, NJ***MHXCA Installation Manual
Air Conditioner
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Contents
General information
Safety precaution .............................................................................................................................................................................................. 2
Deciding on where to install the air conditioner ................................................................................................................................ 4
Indoor/outdoor unit installation drawings ...........................................................................................................................................5
Air conditioner and accessories .................................................................................................................................................................. 7
Deciding on where to install the indoor unit .......................................................................................................................................8
Indoor unit installation .................................................................................................................................................................................11
Purging the unit ...............................................................................................................................................................................................12
Connecting the refrigerant pipe ..............................................................................................................................................................13
Cutting/aring the pipes .............................................................................................................................................................................14
Performing leak test & insulation .............................................................................................................................................................15
Drainpipe and drain hose installation ...................................................................................................................................................16
Connecting the connection cord .............................................................................................................................................................18
Wiring wired remote control (optional) ................................................................................................................................................19
Assigning address to indoor unit .............................................................................................................................................................20
Additional functions ......................................................................................................................................................................................21
Installing the safety net & air blocking kits ..........................................................................................................................................22
Troubleshooting ..............................................................................................................................................................................................23
Safety precautions
(Carefully follow the precautions listed below because they are essential to guarantee the safety of the equipment.)
• Always disconnect the air conditioner from the power supply before servicing it or
WARNING
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 air conditioner is compliant with the requirements of the Low Voltage Directive (72/23/EEC), the EMC Directive
(89/336/EEC), and the Directive on pressurized equipment (97/23/EEC).
The manufacturer shall not be responsible for damage originating from unauthorized changes or the improper connection
of electric and hydraulic lines. Failure to comply with these instructions or to comply with the 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.
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.
2
Safety precautions
General information
installinG the unit
Power suPPly line, fuse or circuit breaker
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.
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.
To prevent injury when accidentally touching the indoor unit fan, install the indoor unit at least 2.5m(8'-2 7/16") above the floor.
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.
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.
For this reason, where it is not observed as indicated into the Installation Manual, the cost necessary to reach and repair
the unit (in safety, as required by current regulations in force) with slings, trucks, scaffolding or any other means of
elevation won’t be considered in-warranty and charged to end user.
ENGLISH
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.
3
A
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 7.5m(24'-7 1/4") 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.
4
A
Indoor/outdoor unit installation drawings
MH050FXCA2A
◆ Piping outside diameter
Indoor unit Outdoor unit Power supply Ø, V, Hz
NJ
1HXCA
TTT
NJ030MHXCA
NJ035MHXCA
MH050FXCA2A cannot be connected to the following indoor unit combination. - NJ052MHXCA
MH050FXCA2A 1, 208-230, 60
Unit
026/030/035
TT
TT
3m(9'-10 1/18") as minimum pipe length. It will reduce noise and
vibration. If just one indoor unit is connected this value must be
increased up to 7.5m(24'-7 1/4").
Outside diameter
Liquid Gas
1/4" 3/8"
ENGLISH
(h)
600mm(23 5/8")
300mm(11 13/16")
minimum
600mm(23 5/8")
minimum
minimum
A B
300mm(11 13/16")
minimum
Main power switch
◆ Piping length and the helght
1 Room max
length
Dimension 20m(65'-7 3/8") 30m(98'-5 1/8") 15m(49'-2 9/16") 7.5m(24'-7 1/4")
Composition A, B A+B (H) (h)
System can work with one indoor unit connected, but it is recommended that the total number of indoor unit suggested by
manufacturer are connected to obtain the maximum performance.
2 Room total max
length
Max height between
indoor unit & outdoor unit
Max height between
indoor units
(H)
The appearance of the unit may be different from the diagram depending on the model.
Make at least one round :
It will reduce noise and vibration
5
A Indoor/outdoor unit installation drawings
MH080FXCA4A
◆ Piping outside diameter
Indoor unit Outdoor unit Power supply Ø, V, Hz
026/030/035/052TTMH080FXCA4A 1, 208-230, 60
TT
3m(9'-10 1/18") as minimum pipe length. It will reduce noise and
vibration. If just one indoor unit is connected this value must be
increased up to 7.5m(24'-7 1/4").
300mm(11 13/16")
minimum
600mm(23 5/8")
minimum
300mm(11 13/16")
minimum
A B
Unit
026/030/035
TT
TT
052
TT
TT
Outside diameter
Liquid Gas
1/4"
3/8"
1/2"
C D
(h)
(H)
600mm(23 5/8")
minimum
◆ Piping length and the helght
1 Room max
length
Dimension 25m(82'-1/4") 70m(229'-7 7/8") 15m(49'-2 9/16") 7.5m(24'-7 1/4")
Composition A, B, C, D A+B+C+D (H) (h)
System can work with one indoor unit connected, but it is recommended that the total number of indoor unit suggested by
manufacturer are connected to obtain the maximum performance.
The appearance of the unit may be different from the diagram depending on the model.
6
Main power switch
4 Room total max
length
Max height between
indoor unit & outdoor unit
Make at least one round :
It will reduce noise and vibration
Max height between
indoor units
Air conditioner and accessories
Accessories in the indoor unit case
The following accessories are supplied with the indoor unit.
The type and quantity may differ depending on the specifications.
◆ NJTTT1HXCA
Pattern sheet Flexible hose Insulation drain Rubber
Installation Manual Insulation cover band Insulation Cable-tie
◆ NJTTTMHXCA
Pattern sheet Insulation cover band Insulation pipe
Insulation drain
hose
ENGLISH
Cable-tie
Flexible hose M4x12 tapped screw Pad stopper Installation manual
Safety net M4x12 tapped screw
7
ADeciding on where to install the indoor unit
Indoor Unit
◆ 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)
Space Requirements for Indoor Unit
◆ NJTTT1HXCA
1500mm(59") or more
1500mm(59") or more
◆ NJTTTMHXCA
1500mm(59") or more
1500mm(59") or more
1500mm(59") or more
1500mm(59") or more
1500mm(59") or more
1500mm(59") or more
T
he units must be installed according to distances declared, in order to permit accessibility from each side, either to
guarantee correct operation of maintenance or repairing products. The unit’s parts must be reachable and removable
completely under safety condition (for people or things).
8
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