Air conditioner Installation manual MN4PKH Thank you for purchasing this Samsung air conditioner. Before operating this unit, please read this manual carefully and retain it for future reference.
Page 2
Contents Safety Information Installation Procedure Step 1 Checking and preparing accessories Step 2 Choosing the installation location Step 3 Optional: Insulating the body of the indoor unit Step 4 Installing the indoor unit Step 5 Purging inert gas from the indoor unit Step 6 Cutting and flaring the pipes Step 7 Connecting the assembly pipes to the refrigerant pipes Step 8 Performing the gas leak test...
This manual explains how to install an indoor unit with a IMPORTANT: When installing the unit, always remember split system with two SAMSUNG units. The use of other to connect first the refrigerant tubes, then the electrical types of units with different control systems may damage lines.
Safety Information Do not use the air conditioner in environments with Be sure not to perform power cable modification, hazardous substances or close to equipment that extension wiring, and multiple wire connection. release free flames to avoid the occurrence of fires, –...
Installation Procedure Step 1 Checking and preparing Step 2 Choosing the installation accessories location The following accessories are supplied with the indoor unit. The type and quantity may differ, depending on the Installation location requirements specifications. There must be no obstacles near the air inlet and outlet.
Model AC071MN4PKH AC090MN4PKH AC100MN4PKH AC120MN4PKH AC140MN4PKH Chassis Small Large Large+ Net dimension (W 947 X 947 X 281 947 X 947 X 365 947 X 947 X 365 947 X 947 X 365 947 X 947 X 365 × D × H) Net weight 20.2...
The components of the indoor unit must be reachable 360 cassette type and removable under safe conditions for people and <S> AC071MN4PKH 2610 x 130 the unit. (947 x 947 x 281) Do not hold the discharge while carrying the indoor...
Page 9
2 Perform the following steps to install inspection holes 4 Install the suspension bolts, depending on the ceiling in accordance with the panel type. type. a For the recessed installation of the square panel. Install an inspection hole to the direction of Ceiling support connection parts of the refrigerant pipe and the drain hose.
Installation Procedure 7 Adjust the unit to the appropriate position, taking into Step 6 Cutting and flaring the pipes account the installation area for the front panel. 1 Make sure that you have the required tools available: Place the pattern sheet on the indoor unit. pipe cutter, reamer, flaring tool, and pipe holder.
5 Check that the flaring is correct, referring to the Outer Diameter (mm) illustrations below for examples of incorrect flaring. Ø6.35 14 to 18 Ø9.52 34 to 42 Ø12.70 49 to 61 Ø15.88 68 to 82 Ø19.05 100 to 120 Damaged Cracked Uneven...
Installation Procedure Step 8 Performing the gas leak test CAUTION To identify potential gas leaks on the indoor unit, inspect Be sure to wrap insulation tightly without any gaps. the connection area of each refrigerant pipe using a leak detector for R-410A. 3 Finish wrapping insulating tape around the rest of the pipes leading to the outdoor unit.
Insulation type (heating/cooling) Standard High humidity Pipe Pipe size Remarks (Less than 30°C, 85%) (Over 30°C, 85%) EPDM, NBR Ø6.35 to Ø9.52 Liquid pipe Ø12.7 to Ø19.05 Ø6.35 The internal Ø9.52 temperature is Ø12.70 higher than 120°C. Gas pipe Ø15.88 Ø19.05 When installing insulation in the places and Step 10 Installing the drain hose and...
Page 14
Installation Procedure 5 Push the drain hose up to insulation when connecting If it is necessary to increase the height of the drain the drain hose to drain socket. pipe, install the drain pipe straight within 300 mm from the drain hose port. If it is raised higher than 550 mm, there may be water leaks.
Install horizontally. Step 11 Performing the drainage test 1 Do a leak test at the connection part of the flexible hose and the drian pipe: Be horizontal a Connect a general hose to the connection part of the flexible hose of the indoor unit, and pour in some water.
Installation Procedure CAUTION CAUTION Always remember to connect the air conditioner to Only in the Cool mode, you can check the correct the grounding system before performing the electric operation of the drain pump. connections. Use a crimp ring terminal at the end of When the electric cable connection has not been each wire.
Page 17
Wiring terminals) 3 phase Indoor power supply Power supply Max/Min(V) Indoor power cable ±10% 220 to 240V, 50 Hz 0.75 to 1.5 mm², 3 wires Indoor unit Communication cable 0.75 to 1.5 mm², 2 wires Outdoor unit 1(L) 2(N) L1(R) L2(S) L3(T) Communication: M3.5 screw...
Installation Procedure 3 Insert both sides of core wire of the power cable into Step 13 Optional: Extending the the connection sleeve. power cable Method 1: Push the core wire into the sleeve from 1 Prepare the following tools. both sides. Method 2: Twist the wire cores together and push Tools Spec...
Page 19
5 Wrap it with the insulation tape twice or more and Step 14 Setting the indoor unit position your contraction tube in the middle of the addresses and the installation options insulation tape. You cannot set both of the indoor unit addresses and Three or more layers of insulation are required.
Page 20
Installation Procedure 2 Set the option values. SEG1 SEG2 SEG3 SEG4 SEG5 SEG6 CAUTION SEG7 SEG8 SEG9 SEG10 SEG11 SEG12 The total number of available options are 24: SEG1 to SEG24. Because SEG1, SEG7, SEG13, and SEG19 are the page SEG13 SEG14 SEG15...
Page 21
Steps Remote control display b Set the SEG5 value by rotating the Wheel clockwise until the value you want to set appears on the remote control display. SEG5 When you rotate the Wheel, values appear in the following order: (Mode) button. Dry and On appear on the remote control display. 4 Press the 5 Set the SEG6 and SEG8 values: a Set the SEG6 value by rotating the Wheel...
Page 22
Installation Procedure Steps Remote control display 9 Set the SEG11 and SEG12 values: a Set the SEG11 value by rotating the Wheel counterclockwise until the value you want to set appears on the remote control display. SEG11 b Set the SEG12 value by rotating the Wheel clockwise until the value you want to set appears on the remote control display.
Page 23
Steps Remote control display 14 Press the (Mode) button. Dry and Off appear on the remote control display. 15 Set the SEG18 and SEG20 values: a Set the SEG18 value by rotating the Wheel counterclockwise until the value you want to set appears on the remote control display.
Page 24
Installation Procedure Steps Remote control display b Set the SEG24 value by rotating the Wheel clockwise until the value you want to set appears on the remote control display. SEG24 When you rotate the Wheel, values appear in the following order: 3 Check whether the option values that you have set are MR-EC00 and MR-EH00 remote controls correct by pressing the...
Page 25
2 Set the option values. SEG1 SEG2 SEG3 SEG4 SEG5 SEG6 CAUTION SEG7 SEG8 SEG9 SEG10 SEG11 SEG12 The total number of available options are 24: SEG1 to SEG24. Because SEG1, SEG7, SEG13, and SEG19 are the page SEG13 SEG14 SEG15 SEG16 SEG17...
Page 26
Installation Procedure Steps Remote control display 3 Set the SEG4 and SEG5 values: a Set the SEG4 value by pressing the (Low Fan) button repeatedly until the value you want to set appears on the remote control display. SEG4 b Set the SEG5 value by pressing the (High Fan) button repeatedly until the value you want to set appears on the remote control display.
Page 27
Steps Remote control display b Set the SEG10 value by pressing the (High Fan) button repeatedly until the value you want to set appears on the remote control display. SEG10 When you press the (Low Fan) or (High Fan) button, values appear in the following order: 8 Press the (Mode) button.
Page 28
Installation Procedure Steps Remote control display 12 Press the (Mode) button. Cool and Off appear on the remote control display. 13 Set the SEG16 and SEG17 values: a Set the SEG16 value by pressing the (Low Fan) button repeatedly until the value you want to set appears on the remote control display.
Page 29
Steps Remote control display b Set the SEG22 value by pressing the (High Fan) button repeatedly until the value you want to set appears on the remote control display. SEG22 When you press the (Low Fan) or (High Fan) button, values appear in the following order: 18 Press the (Mode) button.
Page 30
Installation Procedure 2 Set an address for each indoor unit using the remote Setting the indoor unit addresses control, according to your air conditioning system plan, by referring to the following table and by Option No. for an indoor unit address: following the steps in Common steps for setting the 0AXXXX-1XXXXX-2XXXXX-3XXXXX addresses and options on page 19.
Page 31
1 Make sure that the power is supplied to the indoor CAUTION unit. If the indoor unit is not plugged in, it must include a power supply. The main address must be set to a value in the range 0 to 14. If you set other values, communication error will occur.
Page 32
Installation Procedure Option SEG7 SEG8 SEG9 SEG10 SEG11 SEG12 Function Page Use of drain pump Indication Details Indication Details Disuse Reserved Reserved Reserved Reserved Indication and details Use with 3 minute delay Option SEG13 SEG14 SEG15 SEG16 SEG17 SEG18 Setting the output Maximum filter Function Page...
Even if you set the Use of drain pump (SEG8) option to 0, it is automatically set to 2 (the drain pump is used with 3 minute delay). If you set the Maximum filter usage time (SEG18) option to a value other than 2 and 6, it is automatically set to 2 (1000 hours).
Page 34
Optional: Installing DPM (Digital fixed in place. Packaged Multi) NOTE Only AC071MN4PKH, AC100MN4PKH and AC120MN4PKH models are available to install DPM. When installing DPM, you should set "DPM setting" to the outdoor unit. You do not need to set the address manually for the indoor unit.
Troubleshooting Indoor unit display indications Condition Ice blue Yellow green Blue Power reset (blinking once every 2 seconds) In the defrost operation (blinking once every 10 seconds) Open or short circuit error of the indoor-temperature sensor Error of the outdoor unit Communication error between the indoor and outdoor units Open or short circuit error of a sensor (evaporator-in, evaporator-out, or discharge sensor) in the indoor unit...