Samsung NCAC 4 Installation Manual
2
Preparation for installation ............................................................................................................................................................................................... 3
Deciding on where to install the indoor unit ........................................................................................................................................................... 4
Indoor unit installation ....................................................................................................................................................................................................... 7
Purging the unit ..................................................................................................................................................................................................................... 8
Connecting the refrigerant pipe .................................................................................................................................................................................... 8
Cutting/Flaring the pipes .................................................................................................................................................................................................. 9
Performing leak test & insulation ............................................................................................................................................................................... 10
Drainpipe and drain hose installation ...................................................................................................................................................................... 11
Connecting the connection cord ............................................................................................................................................................................... 13
Setting an indoor unit address and installation option ..................................................................................................................................... 14
Troubleshooting ................................................................................................................................................................................................................. 21
Contents
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 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
dierent 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.
This product has been determined to be in compliance with the Low Voltage Directive (2006/95/EC), the Electromagnetic
Compatibility Directive (2004/108/EC) and the Machinery Directive (2006/42/EC) of the European Union.
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 o and disconnect it from the power supply.
In order to prevent electric shocks, res 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 qualied 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 res.
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 controller(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 rst 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 ames to avoid
the occurrence of res, explosions or injuries.
WARNING
3
ENGLISH
When deciding on the location of the air conditioner with the owner, the following restrictions must be taken into account.
Our units should be installed in compliance with the spaces shown in the installation manual, to ensure accessibility from both
sides and allow repairs or maintenance operations to be carried out. The unit’s components should be accessible and easy to
disassemble without endangering people and objects.
For this reason, when provisions of the installation manual are not complied with, the cost required to access and repair the units
(in SAFETY CONDITIONS, as set out in prevailing regulations) with harnesses, ladders, scaolding or any other elevation system will
NOT be considered part of the warranty and will be charged to the end customer.
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 specications and that the installed power is sucient
to ensure the operation of any other domestic appliance connected to the same electric lines.
Always verify that the cut-o 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 specications
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.
Devices disconnected from the power supply should be completely disconnected in the condition of overvoltage category.
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, rst consult your dealer.
Avoid installing the air conditioner :
◆
In areas where it is exposed to direct sunlight. Close to heat sources.
◆
In damp areas or locations where it could come into contact with water. (for example rooms used for laundry)
◆
In areas where curtains and furniture could aect the supply and discharge of air.
◆
Without leaving the required minimum space around the unit. (as shown in the drawing)
◆
In scarcely ventilated areas.
◆
On surfaces that are unable to support the weight of the unit without deforming, breaking or causing vibrations
during the use of the air conditioner.
◆
In a position that does not enable the condensate drainage pipe to be correctly installed. (at the end of the
installation. It is always essential to check the eciency of the drainage system)
General
Preparation for installation
◆ Make sure that you earth the cables.
- Do not connect the earth wire to the gas pipe, water pipe, lighting rod or telephone wire. If earthing is not
complete, electric shock or re may occur.
◆ Install the circuit breaker.
- If the circuit breaker is not installed, electric shock or re may occur.
◆ Make sure that the condensed water dripping from the drain hose runs out properly and safely.
◆ Install the power cable and communication cable of the indoor and outdoor unit at least 1m away from the electric appliance.
◆ Install the indoor unit away from lighting apparatus using the ballast.
- If you use the wireless remote control, reception error may occur due to the ballast of the lighting apparatus.
◆ Do not install the air conditioner in following places.
- Place where there is mineral oil or arsenic acid. Resin parts ame and the accessories may drop or water may
leak. The capacity of the heat exchanger may reduce or the air conditioner may be out of order.
- The place where corrosive gas such as sulfurous acid gas generates from the vent pipe or air outlet.
The copper pipe or connection pipe may corrode and refrigerant may leak.
- The place where there is a machine that generates electromagnetic waves. The air conditioner may not operate
normally due to control system.
- The place where there is a danger of existing combustible gas, carbon ber or ammable dust.
The place where thinner or gasoline is handled. Gas may leak and it may cause re.
CAUTION
4
Deciding on where to install the indoor unit
Preparation for installation
◆ The following accessories are supplied with the indoor unit.
The type and quantity may dier depending on the specications.
Indoor unit
Space requirements for indoor unit
Accessories
◆
There must be no obstacles near the air inlet and outlet.
◆
Install the indoor unit on a ceiling that can support its weight.
◆
Maintain sucient 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)
• If you install the cassette type indoor unit on the ceiling with humidity over 80%, you must apply extra 10mm of
polyethylene foam or other insulation with similar material on the body of the indoor unit.
Pattern sheet (1) Thermal insulation
sponge A(1)
Thermal insulation
sponge B (1)
Thermal insulation
sponge C (1)
Flexible hose clamp (1)
Flexible hose (1) Cable-tie(6) user manual (1) Installation (1)
manual
1500mm or more
1500mm or more
1500mm or more
1500mm or more
CAUTION
5
ENGLISH
• The 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).
❈The appearance of the unit maybe dierent from the picture depending on the model.
• Do not hold the discharge while carrying the indoor unit to avoid the possibility of breakage. You must hold the
hanger plate on the corner and carry the indoor unit.
C mm 297
Net dimension mm 575*250*575
Required space for an indoor unit installation
Obstruction
20mm
17mm
1500mm
or more
‘C’ mm
1500mm or more
A C
BD
E
A B C D E
400x190 400x190 400x190 400x190 550x550
Thickness: more than 10mm
◆
Insulate the end of the pipe and some curved area by using separate insulator.
◆
Insulate the discharge and suction part at the same time when you insulate connection duct.
CAUTION
6
AA
47.5 575
120
224
205
160
69
295
250
300
200
47.5
47.5 575 47.5
165
249
269
43
Deciding on where to install the indoor unit
Unit : mm
MODEL
✴✴026✴✴/✴✴035✴✴
Net dimension mm 575*250*575
Net weight kg 12.0
Liquid pipe connection 1/4"
Gas pipe connection 3/8"
Drain Hose connection mm OD : Ф25 , ID : Ф20
Drawing of the indoor unit
500 (Suspension position)
585~630 (Ceiling opening)
585~630 (Ceiling opening)
500 (Suspension position)
670
670
Sub duct connection
7
AA
ENGLISH
Indoor unit installation
Ceiling support
Pad stopper
Bracket
Ceiling
17mm
20mm
Indoor unit
Gauge of
Dimensions
Concrete
Suspension bolt(M8)-field supply
Hole in anchor
Hole in plug
Insert
When deciding on the location of the air conditioner with the owner, the following restrictions must be taken into account.
1. Determine the position of the pipe and drain hose hole as seen in the
picture and drill the hole with an inner diameter of 65mm so that it slants
slightly downwards.
2. Insert bolt anchors, use existing ceiling supports or construct a suitable
support as shown in gure.
3. Install the suspension bolts depending on the ceiling type.
4. Screw eight nuts to the suspension bolts making space for hanging the
indoor unit.
5. Hang the indoor unit to the suspension bolts between two nuts.
6. Screw the nuts to suspend the unit. Cut a pad stopper and place it on the
bracket at this time.
7. Adjust the unit to the appropriate position considering the installation area
for the front panel.
1) Place the pattern sheet on the indoor unit.
2) Adjust a space between the ceiling and the indoor unit by using the gauge
of dimensions.
3) Fix the indoor unit securely after adjusting level of the unit by using a
leveler.
4) Remove the pattern sheet, connect the other cables and install the front
panel.
• Since the diagram is made of paper, it may shrink or stretch slightly
due to temperature or humidity. For this reason, before drilling the
holes maintain the correct dimensions between the markings.
• Piping must be laid and connected inside the ceiling when
suspending the unit. If the ceiling is already constructed, lay the
piping into position for connection to the unit before placing the unit
inside the ceiling.
• Ensure that the ceiling is strong enough to support the weight of the
indoor unit. Before hanging the unit,
test the strength of each attached suspension bolt.
• If the length of suspension bolt is more than 1.5m, it is required to
prevent vibration.
• The distance between a suspension bolt and the top of bracket (in
indoor unit) not exceed 25mm(between indoor pipe and hanger
plate).
• You must install all the suspension rods.
• It is important to leave sucient space in the false ceiling to allow
access for maintenance or repairs to the drainage pipe connection,
the refrigerant pipe connection, or to remove the unit if necessary.
CAUTION
CAUTION
NOTE
NOTE
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