Samsung AM FN1DEH Series User manual

Cassette Type Series
Slim 1 Way cassette : AM✴✴✴FN1DEH✴
AM✴✴✴JN1DEH✴
2 Way cassette : AM✴✴✴FN2DEH✴
4 Way cassette : AM✴✴✴FN4DEH✴
Air Conditioner
installation manual
imagine the possibilities
Thank you for purchasing this Samsung product.
DB68-03862A-08

2
Contents
Safety Precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Accessories . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Selecting the Installation Location . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Indoor Unit Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .13
Purging the Unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .14
Connecting the Refrigerant Pipe . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .15
Cutting/Flaring the Pipes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Performing Leak Test & Insulation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Drain pipe and Drain Hose Installation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .21
Wiring Work . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .24
Setting an indoor unit address and installation option. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .30
Final Checks and User Tips . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .43
Providing information for user . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43
Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .44
Instruction for packing and unpacking the unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47
Technical Specications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48

3
ENGLISH
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 qualied
personnel.
• Verify that the air conditioner is not installed in an easily accessible area.
General information
XCarefully 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.
XFor maximum safety, installers should always carefully read the following warnings.
XStore 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.
XThis manual explains how to install an indoor unit with a split system with two SAMSUNG units. The use of other
types of units with dierent 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.
XThe 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.
XThe 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.
XDo not use the units if damaged. If problems occur, switch the unit o and disconnect it from the power supply.
XIn 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.
XAlways remember to inspect the unit, electric connections, refrigerant tubes and protections regularly. These
operations should be performed by qualied personnel only.
XThe unit contains moving parts, which should always be kept out of the reach of children.
XDo not attempt to repair, move, alter or reinstall the unit. If performed by unauthorized personnel, these operations
may cause electric shocks or res.
XDo not place containers with liquids or other objects on the unit.
XAll the materials used for the manufacture and packaging of the air conditioner are recyclable.
XThe packing material and exhaust batteries of the remote control(optional) must be disposed of in accordance with
current laws.
XThe 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.

4
Safety Precautions
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.
XUpon 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.)
XAfter completing the installation, always carry out a functional test and provide the instructions on how to operate
the air conditioner to the user.
XDo 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.
XThe 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.
XOur 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, scaolding or any other
means of elevation won’t be considered in-warranty and charged to end user.
Power supply line, fuse or circuit breaker
XAlways make sure that the power supply is compliant with current safety standards. Always install the air
conditioner in compliance with current local safety standards.
XAlways verify that a suitable grounding connection is available.
XVerify that the voltage and frequency of the power supply comply with the specications and that the installed
power is sucient to ensure the operation of any other domestic appliance connected to the same electric lines.
XAlways verify that the cut-o and protection switches are suitably dimensioned.
XVerify that the air conditioner is connected to the power supply in accordance with the instructions provided in the
wiring diagram included in the manual.
XAlways verify that electric connections (cable entry, section of leads, protections…) are compliant with the electric
specications 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.
XBe sure not to perform power cable modication, extension wiring, and multiple wire connection.
- It may cause electric shock or re due to poor connection, poor insulation, or current limit override.
- When extension wiring is required due to power line damage, refer to “How to connect your extended power
cables”in the installation manual.

5
ENGLISH
• 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

6
Accessories
The following accessories are supplied with the indoor unit.
The type and quantity may dier depending on the specications.
AM****N1DEH*
Dimension gauge Installation template Insulation drain Flexible hose Rubber Installation manual
AM***FN2DEH*
Dimension gauge Installation
template Insulation drain Flexible hose Rubber Installation manual
AM***FN4DEH*
Dimension gauge Installation
template Insulation pipe Cable-tie Drain hose Installation manual Clamp
Selecting the Installation Location
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 sucient 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)
• Rigid wall without vibration.
• Where it is not exposed to direct sunshine.
• Where the air lter can be removed and cleaned easily.
• As a rule, the unit cannot be installed at a height of less than 2.5 m.
• It is possible to install the unit at a height of between 2.2~2.5m from the ground, if the unit has a duct
with a well dened length (300mm or more) to avoid fan motor blower contact.
• If you install the cassette or duct 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.
CAUTION

7
ENGLISH
Space Requirements for Indoor Unit
AM✴✴✴FN1DEH✴/AM✴✴✴JN1DEH✴/AM✴✴✴FN2DEH✴
1500 mm or more
1500 mm or more
1500 mm or more
1500 mm or more
AM✴✴✴FN4DEH✴
1500 mm or more
1500 mm or more
1500 mm or more
1500 mm or more
• 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).
• 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.
CAUTION

8
Selecting the Installation Location
Insulation Guide
2 Way cassette
(Unit : mm)
A
EC
B
D
880
570
185
Thickness: more than 10mm
Indoor unit A B C D E
5.2~7.2kw
(890x230x575) 880x185 880x185 570x185 570x185 880x570
• Insulate the end of the pipe and some curved area by using separate insulator.

9
ENGLISH
Dimension of the indoor unit
AM✴✴✴FN1DEH✴
(Unit : mm)
249
(Ceiling opening)
1150 (Suspension position)
440
(Suspension position)
1035.8 (Ceiling opening)
Drain hole
Celling
21 77
50
52
85
970
13540
1198
500
25 150
410
No. Name Description
1Liquid pipe connection ø6.35
2Gas pipe connection ø12.70
3Drain pipe connection OD ø32, ID ø26
4Power supply connection -
5Air discharge grille -
6Air suction grille -

10
Selecting the Installation Location
AM✴✴✴JN1DEH✴
(Unit : mm)
350
(Ceiling opening)
1380 (Suspension position)
470
(Suspension position)
1260 (Ceiling opening)
Celling
50
90
1200
138
42
1410
500 23 155
450
No. Name Description
1Liquid pipe connection AM056JN1✴✴✴✴ : ø6.35 (1/4”)
AM071JN1✴✴✴✴ : ø9.52 (3/8”)
2Gas pipe connection AM056JN1✴✴✴✴ : ø12.70 (1/2”)
AM071JN1✴✴✴✴ : ø15.88 (5/8”)
3Drain pipe connection OD ø32, ID ø26
4Power supply connection -
5Air discharge grille -
6Air suction grille -

11
ENGLISH
AM✴✴✴FN2DEH✴
(Unit : mm)
157
650
725
493
890
117
180
25 136.5
230
575
1030
919
No. Name Description
1Liquid pipe connection ✴✴056✴✴ : ø6.35
✴✴071✴✴ : ø9.52
2Gas pipe connection ✴✴056✴✴ : ø12.7
✴✴071✴✴ : ø15.88
3Drain pipe connection VP25 (OD ø32, ID ø25)
4Power supply connection -
5Air discharge grille -
6Air suction grille -

12
Selecting the Installation Location
AM✴✴✴FN4DEH✴
(Unit : mm)
AB
950
55 840
55 840 55
370
346
185
950
890~910 (Celling opening)
890~910 (Celling opening)
735 (Suspension position)
735 (Suspension position)
120
45
164
216
86
96
330 240
270
300
Sub duct connection
MODEL
✴✴045✴✴
✴✴056✴✴
✴✴071✴✴
✴✴090✴✴ ✴✴112✴✴ ✴✴128✴✴
✴✴140✴✴
Amm 204 204 246 288
Bmm 253 253 295 337
Liquid pipe connection ø6.35 ø9.52
Gas pipe connection ø12.7 ø15.88
Drain Hose connection mm OD : ø32.0, ID : ø26.5

13
ENGLISH
Indoor Unit Installation
It is recommended to install the Y-joint before installing the indoor unit.
1. Place the pattern sheet on the ceiling at the spot where you want to
install the indoor unit.
NOTE
• 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.
2. Insert bolt anchors, use existing ceiling supports or construct a suitable
support as shown in gure. Concrete
Suspension bolt (ø9.52 or M10)
Hole in anchor
Hole in plug
Insert
3. Install the suspension bolts depending on the ceiling type.
• 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.
• If this is not possible, create an opening on the false
ceiling in order to be able to use it to perform the required
operations on the indoor unit.
CAUTION
Ceiling support
4. Screw eight nuts to the suspension bolts making space for hanging the
indoor unit.
• You must install the suspension bolts more than four when
installing the indoor unit.
CAUTION
Nut
Washer
Rubber
Fasten the nut
5. Check the level of the indoor unit by using a leveler.
• A tilt of the indoor unit may cause malfunction of a built-in oat switch
and water leaks.
Level

14
Indoor Unit Installation
6. Adjust the height of the indoor unit by using the jigs.
• You should adjust the jigs and the pattern sheet to t the cutting dimensions of ceiling.
• Noise may occur if you do not adjust the location of the indoor unit according to location of the jigs during
installation.
- Adjust the location of the indoor unit according to the jigs.
• Make sure that the indoor unit is installed at a level if the indoor unit slants too much, there can be water leaks.
AM✴✴✴FN1DEH✴/AM✴✴✴JN1DEH✴AM✴✴✴FN2DEH✴
Side view
Air inlet
Jig
Air outlet Ceiling
15 mm 15 mm
45 mm 45 mm
Ceiling Ceiling
AM✴✴✴FN4DEH✴
Indoor unit
Jig
17 mm
17 mm
Ceiling
• When installing the indoor unit, make sure that it
is not installed too closely to the one side of the
opening on the ceiling.
7. Tighten the upper part nuts.
8. Remove the jigs after installing the indoor unit.
Purging the Unit
From factory the unit is supplied and set with a pre-charge of nitrogen gas (insert gas). Therefore, all insert gas must be
purged before connecting the assembly piping.
Unscrew the pinch pipe at the end of each refrigerant pipe.
Result: All inert gas escapes from the indoor unit.
NOTE
• To prevent dirt or foreign objects from getting into the
pipes during installation, do NOT remove the pinch pipe
completely until you are ready to connect the piping.
Gas refrigerant
port
Liquid refraigerant port
The designs and shape are subject to change
according to the model.

15
ENGLISH
Connecting the Refrigerant Pipe
There are two refrigerant pipes of diering diameters:
• A smaller one for the liquid refrigerant
• A larger one for the gas refrigerant
• The inside of copper pipe must be clean & has no dust.
1. Before connecting the reprigerant pipe, open the cover side.
Refrigerant oil
2. Remove the pinch pipe on the pipes and connect the assembly pipes
to each pipe, tightening the nuts, rst manually and then with a torque
wrench, a spanner applying the following torque.
Outer Diameter (mm)
Torque
kgf•cm N•m
6.35 140~180 14~18
9.52 350~430 34~42
12.70 500~620 49~61
15.88 690~830 68~82
NOTE
• Must apply refrigerant oil on the aring area to prevent a
leak.
Torque wrench
Flare nut
Union
Spanner
3. Be sure that there must be no crack or kink on the bended area.
Cover side
The designs and shape are subject to change
according to the model.
• Connect the indoor and outdoor units using pipes with ared 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 dierence, line length, max. bends, refrigerant charge, etc.) see the
outdoor unit installation manual.
• All refrigerant connection must be accessible, in order to permit either unit maintenance or removing
it completely.
CAUTION

16
Cutting/Flaring the Pipes
1. Make sure that you prepared the required tools. (pipe cutter, reamer, aring tool and pipe holder)
2. If you want to shorten the pipe, cut it using a pipe cutter ensuring that
the cut edge remains at 90° with the side of the pipe. There are some
examples of correctly and incorrectly cut edges below.
90° Oblique Rough Burr
3. To prevent a gas leak, remove all burrs at the cut edge of the pipe using a reamer.
4. Carry out aring work using aring tool as shown below.
Flaring tool
Clutch type Wing nut type
A
Die
Copper pipe
Yoke
Die
Copper
pipe
Flare nut
Outer diameter [D (mm)]
Depth [A (mm)]
Flare tool for R-410A
clutch type
Conventional are tool
Clutch type Wing nut type
6.35 0~0.5 1.0~1.5 1.5~2.0
9.52 0~0.5 1.0~1.5 1.5~2.0
12.70 0~0.5 1.0~1.5 1.5~2.0
15.88 0~0.5 1.0~1.5 1.5~2.0

17
ENGLISH
5. Check if you ared the pipe correctly. There are some examples of ncorrectly ared pipes below.
InclinedCorrect Damaged Surface Cracked Uneven Thickness
6. Align the pipes and tighten the are nuts rst manually and then with
a torque wrench, applying the following torque.
Outer diameter
(D, mm)
Connection Torque Flare
dimension
(A, mm)
Flare shape
(mm)
kgf•cm N•m
6.35 140~180 14~18 8.70~9.10 R 0.4~0.8
90° ±2°
45° ±2°
9.52 350~430 34~42 12.80~13.20
12.70 500~620 49~61 16.20~16.60
15.88 690~830 68~82 19.30~19.70
• In case of needing brazing, you must work with Nitrogen gas blowing.
CAUTION

18
Performing Leak Test & Insulation
Leak test
LEAK TEST WITH NITROGEN (before opening valves)
In order to detect basic refrigerant leaks, before recreating the vacuum and
recirculating the R-410A, it’s responsible of installer to pressurize the whole
system with nitrogen (using a pressure regulator) at a pressure above
4.1MPa (gauge).
LEAK TEST WITH R-410A (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 R-410A. The designs and shape are subject to change
according to the model.
Leak check
• Discharge all the nitrogen to create a vacuum and charge the system.
CAUTION
Insulation
Once you have checked that there are no leaks in the system, you can insulate the piping and hose.
1. To avoid condensation problems, place T13.0 or thicker Acrylonitrile
Butadien Rubber separately around each refrigerant pipe.
NOTE • Always make the seam of pipes face upwards.
No gap
NBR(T13.0 or thicker)
Insulation cover pipe
Indoor unit
Be sure to overlap
the insulation
Insulation pipe
• Must t tightly against
body without any gap.
CAUTION
2. Wind insulating tape around the pipes and drain hose avoiding to
compress the insulation too much.
3. Finish wrapping insulating tape around the rest of the pipes leading to
the outdoor unit.
4. The pipes and electrical cables connecting the indoor unit with the
outdoor unit must be xed to the wall with suitable ducts.
• All refrigerant connection must be accessible, in order to permit either unit maintenance or removing
it completely.
CAUTION

19
ENGLISH
5. Select the insulation of the refrigerant pipe.
• Insulate the gas side and liquid side pipe referring to the thickness according to the pipe size.
• Indoor temperature of 30°C and humidity of 85% is the standard condition.
If installing in a high humidity condition, use one grade thicker insulator by referring to the table below.
If installing in an unfavorable conditions, use thicker one.
• Insulator’s heat-resistance temperature should be more than 120°C.
Pipe Pipe size
Insulation Type (Heating/Cooling)
Remarks
Standard
[30°C, 85%]
High humidity
[30°C, over 85%]
EPDM, NBR
Liquid pipe Ø6.35 ~ Ø9.52 9t o
Internal temperature is
higher than 120°C
Ø12.7 ~ Ø50.80 13t o
Gas pipe
Ø6.35 13t 19t
Ø9.52~Ø25.40 19t 25t
Ø28.58~Ø44.45 32t
Ø50.80 25t 38t
• When installing insulation in places and conditions below, use the same insulation that is used for high humidity
conditions.
<Geological condition>
- High humidity places such as shoreline, hot spring, near lake or river, and ridge (when the part of the building is
covered by earth and sand.)
<Operation purpose condition>
- Restaurant ceiling, sauna, swimming pool etc.
<Building construction condition>
- The ceiling frequently exposed to moisture and cooling is not covered.
e.g. The pipe installed at a corridor of a dormitory and studio or near an exit that opens and closes frequently.
- The place where the pipe is installed is highly humid due to the lack of ventilation system.

20
Performing Leak Test & Insulation
Refrigerant pipe before EEV kit and MCU or without EEV kit and MCU
• You can contact the gas side and liquid side pipes but the pipes should
not be pressed.
• When contacting the gas side and gas side pipe, use 1 grade thicker
insulator.
Gas pipe
Liquid pipe
Insulation
Insulation
Refrigerant pipe after EEV kit and MCU
• Install the gas side and liquid side pipes, leave 10mm of space.
• When contacting the gas side and liquid side pipe, use 1 grade thicker
insulator.
Gas pipe
10mm10mm 10mm
Liquid pipe
• Install the insulation not to get wider and use the adhesives on the connection part of it to prevent
moisture from entering.
• Wind the refrigerant pipe with insulation tape if it is exposed to outside sunlight.
• Install the refrigerant pipe respecting that the insulation does not get thinner on the bent part or
hanger of pipe.
• Add the additional insulation if the insulation plate gets thinner.
Additional insulation
Hanger
Refrigerant pipe insulation
a×3
a
CAUTION