Samsung AM***MXWA Series Installation Manual
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Samsung AM***MXWA Series Installation Manual

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DB68-07306A-01
Air Conditioner
installation manual
imagine
the possibilities
Thank you for purchasing this Samsung product.
DVM S WATER-GEO
AM✴✴✴MXWA Series
AM✴✴✴KXWA Series

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Summary of Contents for Samsung AM***MXWA Series

  • Page 1 DVM S WATER-GEO AM✴✴✴MXWA Series AM✴✴✴KXWA Series Air Conditioner installation manual imagine the possibilities Thank you for purchasing this Samsung product. DB68-07306A-01...

  • Page 2: Table Of Contents

    Appendix . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 106 For information on Samsung’s environmental commitments and product specific regulatory obligations e . g . REACH visit: samsung .

  • Page 3: Safety Precautions

    Safety precautions Before installing an air conditioner, please read this manual thoroughly to ensure that you know how to safely and efficiently install a new appliance . ❋ ❋ DVM S WATER-GEO air conditioner uses R-410A refrigerant . - When using R-410A, moisture or foreign substances may affect the capacity and reliability of the product . Safety precautions must be taken when installing the refrigerant pipe .
  • Page 4 Safety precautions Neatly arrange the wires in the electrical parts to make sure that electrical cover is closed securely without any gaps. f If the cover is not properly closed, heat may be generate on the electrical terminal and cause electric shock or fire . Make sure to use the provided or specified parts with the specified tools for installation.
  • Page 5 CAUTION SIGNS Perform the drainage/piping work securely according to the installation manual. f If not, water could drop from the unit and household goods could get wet and damaged . Fasten a flare nut with a torque wrench as specified in this installation manual. f When fastened too tight, a flare nut may break after a long period of time and cause refrigerant leakage .

  • Page 6: Preparing For Installation

    Preparing for installation Outdoor unit classification Classification Small chassis large chassis Appearance Models AM080/100/120MXWA✴ AM200MXWA✴/AM300KXWA✴ Packaging material disposition • Safely store or dispose the packaging materials . CAUTION - Sharp metals such as nails or wooden material packaging that may break into pieces become a cause for personal injury .
  • Page 7 Outdoor unit combination f Make sure to use an indoor unit that is compatible with DVM S WATER-GEO . f Indoor units can be connected within the range indicated in following table . f If the total capacity of the connected indoor units exceeds the indicated maximum capacity, cooling and heating capacity of the indoor unit may decrease .
  • Page 8 Preparing for installation Model name for combination AM340MXWANR2 AM360MXWANR2 AM380MXWANR2 AM400MXWANR2 AM420MXWANR2 Number of individual outdoor units AM080MXWANR AM100MXWANR Combined outdoor unit AM120MXWANR AM200MXWANR Cooling (kW) 95 . 2 100 . 8 106 . 4 112 . 0 117 . 6 Rated capacity Heating (kW) 107 .
  • Page 9 Model name for combination AM480MXWANR1 AM500MXWANR1 AM520MXWANR1 AM540MXWANR1 AM580MXWANR1 Number of individual outdoor units AM080MXWANR AM100MXWANR Combined outdoor unit AM120MXWANR AM200MXWANR AM300KXWANR 134 . 4 140 . 0 145 . 6 151 . 2 162 . 4 Cooling (kW) Rated capacity Heating (kW) 151 .
  • Page 10 Preparing for installation Moving the outdoor unit f Select the moving path in advance . f Be sure that moving path can support weight of the outdoor unit . f Do not slant the product more than 30˚ when carrying it . (Do not lay the product down in sideways . ) f Surface of the heat exchanger is sharp .

  • Page 11: Selecting Installation Location

    Selecting installation location Decide the installation location regarding the following condition and obtain user’s approval . Standard installation condition f Heat source water containing foreign substances can cause condenser and pipe corrosion as well as water scale . Therefore, make sure that water source meets the standard of cooling water quality for refrigerating and air conditioning equipment .

  • Page 12: Space Requirement For Installation

    Space requirement for installation Minimum space requirement for installation f Secure minimum installation space as shown in the following figures, considering service area and path for people etc . - If the installation space is narrow, installer or other worker may get injured during work and may also cause problem to the product .
  • Page 13 Module or continuous installation (Unit : mm) Outdoor unit Outdoor unit Service space Service space Front side Front side <Top view> Model name of outdoor unit AM080/100/120MXWA✴✴ AM200MXWA✴✴/AM300KXWA✴✴ 1100 • If the outdoor unit is needed to be installed close to the walls unavoidably, prevent the vibration from being transferred to the walls with cushioning materials etc .

  • Page 14: Accessories

    Accessories Accessories f You must keep following accessories until the installation is finished . f Hand over the installation manual to the customer after finishing the installation . Name Installation manual Installation check card Packing socket Quantity Image ❋ ❋ Models with packing socket : AM080,100,120MXWA✴✴, AM300KXWA✴✴ ❋...

  • Page 15: Base Construction And Installation Of The Outdoor Unit

    Base construction and installation of the outdoor unit • Make sure to remove the wooden pallet before installing the outdoor unit . If you do not remove the wooden pallet, there is risk of fire during welding the pipes . If the outdoor unit is installed with wooden pallet on, and WARNING it was used for long period time, wooden palette may break and cause electrical hazard or high pressure may damage the pipes .
  • Page 16 Base construction and installation of the outdoor unit Foundation Draining Ditch Over 150 mm <When installing on the ground> Outdoor unit installation Foundation (or H beam Outdoor unit or anti-vibration frame) Anchor bolt Base ground 20 mm Anti-vibration pad nut, Spring washer Foundation (or H beam or anti- vibration frame) Over A + 10~20 mm...

  • Page 17: Drain Pipe Installation

    Drain pipe installation Installing the drain pipe f Attach the drain pipe to the drain socket (PT1/2) located on the bottom of the product . Drain socket (PT 1/2) Single installation Outdoor unit Open to air Drain socket Slope over 1/50 Module installation Outdoor unit Outdoor unit...
  • Page 18 Drain pipe installation cautions regarding connecting the anchor bolt f Use the rubber washer to prevent the anchor bolt from corroding . CAUTION Rubber washer f Anchor bolt specifications Diameter of Anchor length Sleeve length Insertion Fastening Size the bore (a) depth torque 14 mm...

  • Page 19: Refrigerant Pipe Installation

    Refrigerant pipe installation • When installing, make sure there is no leakage . When collecting the refrigerant, stop the compressor first before removing the connection pipe . If the refrigerant pipe is not properly connected and the compressor is working WARNING with the service valve open, the pipe sucks the air in which makes the pressure inside of the refrigerant cycle abnormally high which may lead to explosion and injury .
  • Page 20 Refrigerant pipe installation Selecting refrigerant pipe Y-joint Increase the main pipe size f Install the refrigerant pipe according to main pipe size of each outdoor unit capacity . f When the pipe length (including elbow) between the outdoor unit and the farthest indoor unit exceeds 90m, the size of the pipe (main pipe) connecting the outdoor unit to the first branch joint must be increased by one grade .
  • Page 21 Maximum pipe length within 90m Maximum pipe length over 90m Outdoor unit capacity (kW) (Cooling) Liquid pipe (mm) Gas pipe (mm) Liquid pipe (mm) Gas pipe (mm) 72 . 8  kW ~ 84 . 0  kW Ø 34 . 9 2 Ø...
  • Page 22 Refrigerant pipe installation Size of the pipe between the branch joint and the indoor unit Make a selection according to outdoor unit capacity . Pipe size (O.D. mm) Indoor unit capacity (kW) Liquid pipe Gas pipe 6 . 0  kW and below Ø...
  • Page 23 22 . 4 kW 22 . 4 kW 56 . 0 kW Ex . ) 100 . 8 kW Pipe size (mm) Outdoor unit Low pressure gas High pressure capacity (kW) Liquid pipe pipe gas pipe 22 . 4 9 . 5 2 19 .
  • Page 24 Refrigerant pipe installation Size of the pipe between branch joints (B) Select the pipe size according to the sum of indoor unit capacity which will be connected after the branch . ❋ Ú However, if the size of the pipe between branch joints (B) is bigger than the size of the pipe connected to the outdoor unit (A), apply the pipe size (A) .
  • Page 25 Branch joint f Branch joint between outdoor units (C) Classification Model name Specification (kW) MXJ-TA3419M 134 . 4  kW and below liquid/low pressure Y-joint (C) MXJ-TA4122M 140 . 0  kW and over MXJ-TA3100M 134 . 4  kW and below High pressure Y-joint (C) MXJ-TA3800M 140 .
  • Page 26 Refrigerant pipe installation Additional refrigerant 56 . 0 kW 20 HP 61 . 6 kW 12 HP 10 HP Ø15 . 8 8 (5 m) Ø9 . 5 2 (1 m) Ø12 . 7 0 (5 m) 7 . 1 kW Ø15 .
  • Page 27 Refrigerant pipe installation f Basic amount of refrigerant inside the outdoor unit (kg) - Amount of additional refrigerant has to be calculated based on the sum of all liquid pipe lengths . Classification AM080MXWA✴✴ AM100MXWA✴✴ AM120MXWA✴✴ AM200MXWA✴✴ AM300KXWA✴✴ 5 . 5 5 .
  • Page 28 Refrigerant pipe installation capacity (kW) 1000 1 .5 1 .7 2 .2 2 .8 3 .2 3 .6 4 .5 5 .6 6 7 .1 8 .2 9 9.3 11 .2 12 .8 14 16 18 22 22 .4 28 32 50 Model MSP duct (with drain pump)
  • Page 29 f Method to calculate the total amount of additional refrigerant - Amount of additional refrigerant depends on the pipe length (ⓐ) - Amount of additional refrigerant for each indoor unit (ⓑ) = ∑(Amount of additional refrigerant for each connected indoor unit) ❇ Refer to the table - Total amount of additional refrigerant = ⓐ+ⓑ...
  • Page 30 Refrigerant pipe installation Amount of Total amount Unit amount of Number of units additional of additional Model name of refrigerant (kg/EA) Classification refrigerant (kg) refrigerant (kg) indoor unit ① ② ①×② ∑(①×②) 4way cassette 0 . 4 5 2 . 2 5 (AM071Fn4DEH✴) 4way cassette 0 .
  • Page 31 Keeping refrigerant pipe To prevent foreign materials or water from entering the pipe, storing method and sealing method (especially during installation)is very important . Apply correct sealing method depending on the environment . Exposure place Exposure time Sealing type longer than one month Pipe pinch Outdoor Shorter than one month...
  • Page 32 Refrigerant pipe installation Cutting or flaring the pipes 1 . Make sure that you prepared the required tools . f Pipe cutter, Deburring tool, flaring tool and pipe holder, etc . 2 . If you want to shorten the pipe, cut it with a pipe cutter ensuring that the cut edge remains at 90° with the side of the pipe .
  • Page 33 Connecting the flared pipes f Check if the flaring is properly done according to the standard size . f Align the center of the piping and tighten the flare nut with your hands . Then, tighten the flare nut with torque wrench in a direction of the arrow indicated in below illustration .
  • Page 34 Refrigerant pipe installation Pipe installation for an outdoor unit 1 . Please read the following instructions to connect the refrigerant pipe to an outdoor unit . - For H/P System, connect liquid and gas pipes to an indoor unit . - For HR System, connect liquid and high/low pressure gas pipes to a MCU .
  • Page 35 1 . Connect refrigerant pipes between outdoor units . f To connect pipes between outdoor units, branch joints (that needs to be purchased separate) must be installed . ❋ ❋ for optimal distribution of the refrigerant, you must use Y-joint for connecting outdoor units. (do not use t-joint) f When outdoor units are installed in module, there are no restrictions on the order of installation .
  • Page 36 Refrigerant pipe installation Caution Correct installation Incorrect installation 200~300 mm When the piping 1 m or less length between 2 m or more outdoor unit and the branch joint exceeds 2 m, install a vertical trap as show in 2 m or more the figure .
  • Page 37 Examples of refrigerant pipe installation 1 . Using Y-joint 2 . Using distribution header 1 . Using Y-joint ENGLISH-37...
  • Page 38 Refrigerant pipe installation Allowable length of the refrigerant pipe and the installation examples Classification Single Installation Module installation Outdoor unit Outdoor unit Branch joint Branch joint Installing only with Y-joint Indoor unit Indoor unit Outdoor unit Outdoor unit Branch joint Distribution header Distribution header Branch joint...
  • Page 39 Classification Example Remarks Installing only with a+b+c+d+e+f+g+p ≤ Y-joint 170 (190) m Equivalent length Actual pipe 170 m and Installing with length below (190 a+b+h ≤ 170 (190) m, • Y-joint: 0 . 5 m Y-joint and (Equivalent m and a+i+k ≤...
  • Page 40 Refrigerant pipe installation note 1) Required condition Classification Condition Example 45 m ≤ b+c+d+e+f+g+p ≤ 90 m: Size of the First branch joint ~ branch pipe (b, c, d, e, f, g) must be increased by Farthest Indoor unit one grade If the size of the main pipe (pipe that connects between the outdoor unit ~ first branch joint) was not increased by one grade: a+(b+c+d+e+f+g)×2...
  • Page 41 Classification Installation with Y-joint Installing with MCU only Cooling Only Indoor Unit (Connecting Only low Pressure Gas Pipe / liquid Pipe note3 Installing with MCU and Y-joint Classification Example Remarks Installing only with Equivalent length Actual pipe a+g+j ≤ 170 m (190 m) 170 m or • Y-joint: 0 .
  • Page 42 Refrigerant pipe installation Classification Example Remarks Outdoor unit ~ 50 m /40 m H1 ≤ 50 m / 40 m Indoor unit note 1) Indoor unit ~ 40 m or less H2 ≤ 40 m Maximum Indoor unit allowable Pipe length height 15 m or less H3 ≤...
  • Page 43 Installing the branch joints Branch joints must be installed ‘horizontally’ or ‘vertically’ . Horizontal installation Vertical installation • Cut the connection part of the branch joint or the provided socket, according to the diameter of the connection pipe, before connecting them . NOTE Over 10~15mm • Install the branch joint within ±15°...
  • Page 44 Refrigerant pipe installation Installing the distribution header 1 . Select the reducer that fits the diameter of the pipe . Socket Provided item Pipe * Socket Pipe* Pipe* Pipe* To indoor unit To indoor unit To outdoor unit To outdoor unit Socket Socket <Gas side>...
  • Page 45 Install the distribution header horizontally . f Install the distribution header horizontally so that its ports do not face down . Socket Distribution header Horizon line Below ±10° Pipe (Separately purchased item) Horizon line Horizon line Below ±15° < Liquid side > Horizon line Below ±15°...
  • Page 46 Refrigerant pipe installation Installing the branch joint between outdoor units Installation of outdoor joints low pressure gas pipe Branch joint between outdoor units must High pressure gas pipe not be installed in vertical position . liquid pipe ❋ ❋ For HR System, connect liquid pipe, high pressure gas pipe and low pressure gas pipe . ❋...
  • Page 47 Installing the MCU MCU specification Model MCU-S6NEK2N MCU-S4NEK3N MCU-S2NEK2N MCU-S1NEK1N Exterior of MCU number of connectable indoor Up to 8 units Up to 8 units Up to 8 units Up to 8 units units at one port The maximum capacity of the 16 kW 16 kW 16 kW...

  • Page 48: Electrical Wiring Work

    Electrical wiring work Model MCU-S6NEK2N MCU-S4NEK3N MCU-S2NEK2N MCU-S1NEK1N Under 16 . 0 kW indoor unit : Don’t use Y-connector This unit is only 16 . 0 kW ~ 28 . 0 kW indoor unit : Use Y-connector at the Gas & liquid line connectable for one port under 16 Kw In case of using Y-connector, it is only connectable for port combination at below...
  • Page 49 Specification of the circuit breaker and power cable Single Capacity (HP) Model AM080MXWAnR 16 . 1 20 . 0 AM100MXWAnR 16 . 1 20 . 0 AM120MXWAnR 20 . 0 25 . 0 AM200MXWAnR 31 . 8 40 . 0 AM300KXWAnR 48 .
  • Page 50 Electrical wiring work Module (Premium compact type) Capacity Model AM080MXWANR AM100MXWANR AM120MXWANR AM200MXWANR AM300KXWANR (HP) AM380MXWAnR1 64 . 1 AM400MXWAnR1 64 . 1 AM420MXWAnR1 AM460MXWAnR1 80 . 2 AM480MXWAnR1 80 . 2 AM500MXWAnR1 79 . 8 AM520MXWAnR1 84 . 1 AM540MXWAnR1 AM580MXWAnR1 95 .
  • Page 51 • This device is intended for the connection to a power supply system with a maximum permissible system impedance shown in the table (on the left page) at the interface point (power service box) of the user’s supply . NOTE • The user must ensure that this device is connected only to a power supply system which fulfills the requirement above .
  • Page 52 Electrical wiring work Power and communication cable configuration f Main power and the ground cable must be withdrawn through the knock-out hole on the bottom-right or right side of the cabinet . f Withdraw the communication cable from the designated knock-out hole on the bottom-right side of the front part . f Install the power and communication cable using separate cable protection tube .
  • Page 53 Power wiring diagram Supplying 3 phase 4 wires (380-415 V~) 3 phase 4 wires (380 ~ 415 V) Main outdoor Sub outdoor Sub outdoor MCCB+ unit unit 1 unit 2 ElCB Main outdoor unit Sub outdoor unit Main outdoor unit Sub outdoor unit Communication cable (Outdoor unit Single phase 2 wires...
  • Page 54 Electrical wiring work Selecting solderless ring terminal f Select a solderless ring terminal for a power cable according to the nominal dimensions for cable . f Apply insulation coating to the connection part of the solderless ring terminal and the power cable . Silver solder Nominal dimensions for cable (mm Nominal dimensions for screw (mm)
  • Page 55 Connecting the power terminal f Connect the cables to the terminal board with solderless ring terminals . f Properly connect the cables by using certified and rated cables and make sure to fix them properly so that external force is not applied to the terminal . f Use a driver and wrench that can apply the rated torque when tightening the screws on the terminal board .
  • Page 56 Electrical wiring work Examples of how to use the cable striper <Cable striper> 1 . Adjust the blade position by coin . (Controller is at the bottom side of the tool . ) Fix the blade position according to the outer sheath thickness of the power cable . 2 .
  • Page 57 Fixing the ground cable f Connect the ground cable to the grounding hole inside the power supply box . Withdrawing the power cable f Through the cable withdrawing hole, penetrate the knock out hole on the side and connect the protection tube (for power cable) up to the power box .
  • Page 58 Electrical wiring work Connecting the MCU (MCU-S6NEE1N, MCU-S4NEE1N, MCU-S4NEE2N) Example 1 Outdoor Indoor unit Indoor unit MCCB unit 220-240 V~ Example 2 Indoor unit Indoor unit Indoor unit Outdoor MCCB unit 220-240 V~ Power must be supplied to the MCU separately from the outdoor unit . Connect the communication cable of the outdoor unit (F1, F2) to the communication cable of the MCU (F1, F2) • Power cable connection should be done with the solderless ring terminal .
  • Page 59 Connecting the MCU (MCU-S6NEK2N, MCU-S4NEK3N, MCU-S2NEK2N, MCU-S1NEK1N) Example MCCB Indoor unit Indoor unit Outdoor unit MCCB 220-240 V~ Power must be supplied to the MCU separately from the outdoor unit . Connect the communication cable of the outdoor unit (F1, F2) to the communication cable of the MCU (F1, F2) • Power cable connection should be done with the solderless ring terminal .
  • Page 60 Electrical wiring work Grounding work Grounding must be done by a qualified installer for your safety . Grounding the power cable f The standard of grounding may vary according to the rated voltage and installation place of the air conditioner . f Ground the power cable according to the following table .

  • Page 61: Air Tightness Test And Vacuum Drying

    Air tightness test and vacuum drying Air tightness test f Use tools for R-410A to prevent the inflow of foreign substances and resist against the internal pressure . f Do not remove the core of filling port . f Use nitrogen gas for air tightness test as shown in the illustration . Manifold gage Filling port liquid pipe...
  • Page 62 Air tightness test and vacuum drying Vacuum drying pipes and indoor units f Use tools for R-410A to prevent the inflow of foreign substances and resist against the internal pressure . f Use vacuum pump that allows vacuuming under -100 . 7 kPa (5 Torr) . f Use the vacuum pump with the check valve to prevent pump oil from flowing backward while the vacuum pump is stopped .

  • Page 63: Pipe Insulation

    Pipe insulation Insulating the refrigerant pipes and branch joints f Check for gas leakage before completing (the hose and pipe insulation) and if there is no sign of leakage, make sure to insulate the pipes and hoses . f Use EPDM material insulator that meets the following conditions . Test item Unit Standard...
  • Page 64 Pipe insulation Insulate the refrigerant pipe f Make sure to insulate the refrigerant pipe, branch joint, distribution header, and the connection part of the pipes . f If you insulate the pipes, condensed water will not fall from the pipes . f Check if there are any cracks on the insulation at the bent part of the pipe .
  • Page 65 Insulate the distribution header f Fix the distribution header with a cable tie and cover the connected part . Insulation f Insulate the distribution header and the welded part and wrap the connected part with an adhesive insulation tape to prevent dew formation . Adhesive insulation tape Insulate after welding a stopper Insulate the refrigerant...
  • Page 66 Pipe insulation Insulating the pipe located inside of the outdoor unit f With a pipe insulator, insulate the pipe up to whole service valve located inside of the outdoor unit . f Seal the gap between the outdoor unit pipe and the insulator . Rainwater and dewdrops may soak through the gap between the pipe and the insulation of the outdoor unit installed on the outside .

  • Page 67: Refrigerant Collection

    Refrigerant collection Collecting refrigerant (to a refrigerant container) You cannot collect the entire refrigerant in the system at once during pump down operation . Therefore you must collect additional refrigerant into the empty refrigerant container prior to pump down operation . 1 .

  • Page 68: Charging Refrigerant

    Charging refrigerant f The R-410A refrigerant is blended refrigerant . Add only liquid refrigerant . f Measure the quantity of the refrigerant according to the length of the liquid side pipe . Add quantity of the refrigerant using a scale . Important information regulation regarding the refrigerant used This product contains fluorinated greenhouse gases .
  • Page 69 Single installation f Open the manifold gauge valve connected to the liquid side service valve and add the liquid refrigerant . f If you cannot add the whole quantity of the refrigerant while the outdoor unit is stopped, open the gas side and liquid side service valve .

  • Page 70: Basic Segment Display

    Charging refrigerant Using service valve for gas f After charging the refrigerant, close all caps as shown in the illustration . f Tightening torque for the cap of refrigerant charging port 10~12 n·m f Tightening torque for the cap of control part 20~25 n·m Cap for the control part f Opening/closing torque for the valve - Over Ø...

  • Page 71: Setting Outdoor Unit Option Switch And Key Function

    Setting outdoor unit option switch and key function Setting outdoor unit option switches : A TYPE K21 K22 SW58 K21 K22 ❋ ❋ If you install HR products, you must match the address between the MCU and the indoor unit . Switch Setting Function...
  • Page 72 Setting outdoor unit option switch and key function Setting outdoor unit option switches : B TYPE f Setting outdoor install option Step Button Display Description Note Outdoor unit address Start Outdoor unit Step1 Setting required display Press (K1+K2) for Outdoor unit address 00: Main unit 2 seconds Unit address...
  • Page 73 Setting outdoor unit key function < A type > < B type > Installing and setting the option with tact switch and explanation of the functions Setting the option 1 . Press and hold K2 to enter the option setting . (Only available when the operation is stopped) - If you enter the option setting, display will show the following .
  • Page 74 Setting outdoor unit option switch and key function 4 . After selecting the function for options, press and hold the K2 switch for 2 seconds . Edited value of the option will be saved when entire segments blinks and tracking mode begins . • Edited option will not be saved if you do not end the option setting as explained in above instruction .
  • Page 75 Optional item Input unit SEG1 SEG2 SEG3 SEG4 Function of the option Remarks 100% (Factory default) 95 % 90 % 85 % 80 % When restriction option is 75 % Current restriction Individual set, cooling and heating rate 70 % performance may decrease .
  • Page 76 Setting outdoor unit option switch and key function Optional item Input unit SEG1 SEG2 SEG3 SEG4 Function of the option Remarks Disable (Factory default) Energy saving mode triggers Energy saving/ when the room temperature rapid cooling Energy saving mode reaches desired temperature Main setting while operating in cooling or...
  • Page 77 Optional item Input unit SEG1 SEG2 SEG3 SEG4 Function of the option Remarks Water Circulation Note 1) fluid flow setting Individual Anti-freeze solution 1 Circulation fluid flow setting (B type PBA) Anti-freeze solution 2 Disable This function is not applicable Disable Main for this model...
  • Page 78 Setting outdoor unit option switch and key function Setting key operation and checking the view mode with tact switch < A type > < B type > K1 (Number of KEY operation Display on segment press) Press and hold 1 Auto trial operation “K”...
  • Page 79 K2 (Number of press) KEY operation Display on segment 1 time Refrigerant charging in Cooling mode K - 5 - BlAnK - BlAnK 2 times Trial operation in Cooling mode K - 6 - BlAnK - BlAnK 3 times Pump down all units in Cooling mode K - 7 - BlAnK - BlAnK HR: Pipe connection inspection 4 times...
  • Page 80 Setting outdoor unit option switch and key function < A type > < B type > Display on segment K4 (Number of KEY operation press) SEG 1 SEG2, 3, 4 1 time Outdoor unit model AM120✴XW✴  Off, 1, 2 2 times Target frequency (Compressor 1) 120 Hz ...
  • Page 81 Display on segment K4 (Number of KEY operation press) SEG 1 SEG2, 3, 4 25 times Current frequency of the compressor 1 120 Hz  1,2,0 26 times Current frequency of the compressor 2 120 Hz  1,2,0 27 times Suction 2 temperature -42 °C ...

  • Page 82: Setting The Mcu And Pipe Addresses (For Hr Only)

    Setting the MCU and Pipe Addresses (for HR Only) You can set the MCU address, the MCU ports to use, and the address for each MCU port connected to each indoor unit . It is for 2nd-generation MCU only . (MCU-S✴nEK2n,MCU-S4nEK3n,MCU-S1nEK1n) Setting the MCU address and the MCU ports to use You can set the MCU address and the MCU ports on the MCU PBA .
  • Page 83 Setting the Pipe Addresses Manually You can use the wired or wireless remote control or the S-nET Pro 2 to set the pipe addresses for each indoor unit . Setting by using the wired or wireless remote control (For how to operate the remote control buttons, see the remote control user manual.) 1 .
  • Page 84 Setting the MCU and Pipe Addresses (for HR Only) Setting the Pipe Addresses Automatically (Auto pipe pairing operation) You can use the Automatic pipe-address setting operation to automatically set the address of each MCU port that is connected to an indoor unit . If an MCU port is set incorrectly or a pipe between an MCU and an indoor unit is connected incorrectly, that indoor unit is indicated .
  • Page 85 ❋ ❋ Before running the Auto pipe pairing operation, be sure to close the front cabinet . If this operation is run with the front cabinet open, the product may be damaged and the pipe addresses cannot be correctly recognized . To run the Auto pipe pairing operation, take the following steps: 1 .

  • Page 86: Water Pipe Installation

    . Maintain appropriate concentration level of anti-freeze according to temperature of water inlet . note 2): Strict management of anti-freeze concentration level is required . Consult Samsung before application . note 3): When inlet water temperature is outside of limit, consult Samsung before application .
  • Page 87 1 . Refer to following table, for diameter of the outdoor unit connection part where water pipe will be connected . If you install outdoor units with different capacities, install a flow control valve to secure rated flow for each outdoor unit . Socket must be connected within below tightening torque .
  • Page 88 Water pipe installation Ball valve Auto air discharge valve (used as cleaning hole) Cleaning device Water outlet pipe Ground heat or Strainer for closed circuit outdoor unit Plate cooling tower type heat exchanger Water inlet pipe Strainer for pump Ball valve Outdoor unit (used as cleaning hole) Flushing pipe...

  • Page 89: External Contact Connection

    External contact connection Flow switch connection (Mandatory connection) f When flow switch is used, it will receive signal of the heat source water circulation and detects if there is any problem on water circulation before operating the outdoor unit . f When there is no contact signal input to the flow switch, it will be diagnosed as 'Problem with the heat source water circulation' and outdoor unit will stop operating to protect outdoor unit .

  • Page 90: Explanation Of Optional Functions

    Explanation of optional functions 2Way solenoid valve f When installing multiple number of outdoor units to a common water pipe, 2way valve will cut the cooling water supply to an outdoor unit that is not operating, so it will increase the overall efficiency of the system . 2Way solenoid valve will operate automatically depending on the operation status of the indoor and outdoor units .
  • Page 91 Wiring method for optional functions Installation example of AC 220-240 V, direct operation type 2way solenoid valve 2Way solenoid valve AC 220-240 V AC 220-240 V Relay 2Way solenoid valve Relay Controller PUMP OUT Flow switch PUMP F/B In PUMP/2Way solenoid valve controller (PBA) Caution for wiring Outdoor unit Internal part of outdoor unit...
  • Page 92 Explanation of optional functions Flow chart of outdoor unit external contact controller Indoor unite remote controller On 2Way solenoid valve On Pump On Flow switch On System stops System operation f Flow switch detector circuit must be detected for more than 30 seconds within 3 minutes after first operation signal output of the pump .

  • Page 93: Things To Check After Completing The Installation

    Things to check after completing the installation 1 . Before supplying the power, use DC 500 V insulation resistance tester to measure the power (3 phase: R, S, T/ 1 phase: l, n) terminal and insulation resistance between the outdoor unit groundings . - Measurement should be over 30MΩ...

  • Page 94: Inspection And Test Operation

    Things to check after completing the installation • Have you checked if the drain pipes of the indoor and outdoor unit are connected together? Drain pipe work • Have you completed the drain test? • Is the drain pipe properly insulated? • Are the power cable and communication cable tightened firmly on the terminal board within the range of rated tightening torque? • Have you checked for cross-connection of the power and communication...
  • Page 95 Checklist before auto trial operation 1 . Check the power cable and communication cable of the indoor and outdoor unit . 2 . Supply power to the outdoor unit 6 hours before trial operation to pre-heat the crank case heater . 3 .
  • Page 96 Inspection and test operation Auto trial operation 1 . If the Auto Trial Operation is not completed, normal operation will be prohibited . - When the auto trial operation is not completed, UP (UnPrepared) will appear on the segment after the communication check and restrict compressor from operating .

  • Page 97: Inspection And Trial Operation

    Inspection and trial operation Measures to take when an E503 error occurs (When the “inspection required” message appears on the S-NET pro report) no . Is the service valve of the outdoor unit Open the service valve of the outdoor unit open? no .
  • Page 98 Inspection and trial operation Measure to take when E505, E506 error occurs Enable vacuum mode on all outdoor units no . Is the service valve of the outdoor unit Open the service valve of the outdoor unit open? Does the value on the pressure sensor of the installed outdoor unit no .

  • Page 99: Automatic Refrigerant Amount Checking Function

    Automatic refrigerant amount checking function This function detects the amount of refrigerant in the system Start Press the Tact switch "K2" 5 times Input S-CHECKER signal Satisfy the temperature condition Satisfy the temperature condition Check the amount of refrigerant Check the amount of refrigerant Check stability Check stability Connect S-net Pro...
  • Page 100 Automatic refrigerant amount checking function • When the temperature is outside of guaranteed range, you can not obtain an accurate result . - Indoor : 20~32 °C CAUTION - Water temperature : 15~40 °C • If the operation cycle is not stable, refrigerant amount detection operation may end . • Accuracy of the results may decrease if the product is not operated for a long period time before the refrigerant amount detection function operation is activated .

  • Page 101: Maintenance

    Maintenance Precautions on plate type heat exchanger maintenance ❋ ❋ Make sure to tell the user to keep this installation manual . 1 . When the product was not operated for long period of time, check the followings: - Check the water to see if the water quality is meets the standard . - Clean the strainer .
  • Page 102 Maintenance Recommended number of inspection for normal operation Side effects when Inspection list Inspection standard Number of inspection inadequate Have you set the electric conductivity value properly? Corrosion, water scale or Forced drainage Once a week Is electric conductivity sensor working properly? slime may occur Is auto valve working properly? Is cooling water corrupted or have floating...

  • Page 103: Cooling Water Management

    Cooling water management 1 . Standard of cooling water quality for air conditioning and the number of water quality inspection ❋ ❋ Make sure to comply the standard for water quality management . f Cooling water with high level of foreign substances can cause pipe corrosion or creation of water scale which effects the product's performance and lifespan .
  • Page 104 Cooling water management 2 . Operation range of water f When the flowrate of cooling water is out of the operation range, stop the outdoor unit and take care of the cause before re-start the operation (Operation range : 60~120% of the standard the flowrate of cooling water) Standard condition Section Flowrate of cooling water (L/min)
  • Page 105 3 . Ground heat exchanger circulation water (anti-freeze) usage standard (mandatory checklist) When using ground heat source, use anti-freeze to manage the freezing point . If you do not use anti-freeze, it will cause the pipes to freeze and burst . note that the manufacturer does not take responsibility for any damage caused . 1) All the circulating water (anti-freeze) and additives (corrosion inhibitor, bacteria inhibitor, foam inhibitors) must be used after consulting with the business ordering party or supervisor for its impact on environment, toxicity, corrosiveness, harmfulness to human and management plan .

  • Page 106: Appendix

    Appendix Model specification (Weight and dimension) Type Model Net weight Net dimension(W*H*D) AM080MXWAnR 160 . 0 kg 770*1000*545 mm AM100MXWAnR 160 . 0 kg 770*1000*545 mm Outdoor unit AM120MXWAnR 160 . 0 kg 770*1000*545 mm AM200MXWAnR 240 . 0 kg 1100*1000*545 mm AM300KXWAnR 282 .

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