Samsung AM MXVAFC Series Installation Manual
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Samsung AM MXVAFC Series Installation Manual

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DVM S
AM✴✴✴MXVAFC Series
AM✴✴✴MXVAJC Series

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Summary of Contents for Samsung AM MXVAFC Series

  • Page 1 DVM S AM✴✴✴MXVAFC Series AM✴✴✴MXVAJC Series Air Conditioner installation manual imagine the possibilities Thank you for purchasing this Samsung product.

  • Page 2: Table Of Contents

    Contents Safety precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 Preparing for installation .

  • Page 3: Safety Precautions

    ❋ ❋ Generally, system air conditioners should not be relocated after installation . But when it has to be relocated for inevitable reasons, please contact Samsung’s qualified dealers for system air conditioners . • Hazards or unsafe practices that may result in severe personal injury or death .
  • Page 4 Safety precautions Check the following before installation and service work. f Before welding, remove dangerous and inflammable things that may cause an explosion and fire around the work . f Before welding, remove the refrigerant from inside the pipe or the product . - If you perform welding while refrigerant is in the pipe, it may increase the pressure of the refrigerant and cause the pipe to burst .
  • Page 5 CAUTION SIGNS Do not install the drain pipe directly to the bottom part of the outdoor unit and built a proper drainage so that water drains out smoothly. If not, pipe may freeze or bursts during winter time and cause damage to the product or water leakage.

  • Page 6: Preparing For Installation

    Safety precautions Changes in DVM S (inverter) compare to conventional models that has to noted when installing f For optimal distribution of the refrigerant, you must use Y-joint as branch joint for connecting outdoor units . (To not use T-joint) f You cannot operate normally if you do not complete the trial operation through outdoor unit key mode .
  • Page 7 Outdoor unit combination f Make sure to use an indoor unit that is compatible with DVM S . 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 capacity of the indoor unit may decrease .
  • Page 8 Preparing for installation Model name for combination AM180MXVAFC/AZ AM200MXVAFC/AZ AM220MXVAFC1AZ AM240MXVAFC1AZ AM260MXVAFC1AZ Number of individual outdoor units AM080MXVAFC AM100MXVAFC AM120MXVAFC Combined outdoor unit AM140MXVAFC AM160MXVAFC AM180MXVAFC AM200MXVAFC Cooling (kW) 50 . 4 56 . 0 61 . 6 67 . 2 73 .
  • Page 9 Model name for combination AM380MXVAFC1AZ AM400MXVAFC1AZ AM420MXVAFC1AZ AM440MXVAFC1AZ AM460MXVAFC1AZ Number of individual outdoor units AM080MXVAFC AM100MXVAFC AM120MXVAFC Combined outdoor unit AM140MXVAFC AM160MXVAFC AM180MXVAFC AM200MXVAFC Cooling (kW) 106 . 4 112 . 0 117 . 6 123 . 2 129 . 6 Nominal capacity Cooling (Btu/h) 363 100...
  • Page 10 Preparing for installation Model name for combination AM580MXVAFC1AZ AM600MXVAFC1AZ AM620MXVAFC1AZ AM640MXVAFC1AZ Number of individual outdoor units AM080MXVAFC AM100MXVAFC AM120MXVAFC Combined outdoor unit AM140MXVAFC AM160MXVAFC AM180MXVAFC AM200MXVAFC Cooling (kW) 162 . 4 168 . 0 173 . 6 179 . 2 Nominal capacity Cooling (Btu/h) 554 200...
  • Page 11 Model name for combination AM740MXVAFC1AZ AM760MXVAFC1AZ AM780MXVAFC1AZ AM800MXVAFC1AZ Number of individual outdoor units AM080MXVAFC AM100MXVAFC AM120MXVAFC Combined outdoor unit AM140MXVAFC AM160MXVAFC AM180MXVAFC AM200MXVAFC Cooling (kW) 208 . 0 213 . 0 218 . 4 224 . 0 Nominal capacity Cooling (Btu/h) 709 800 726 800 745 300...
  • Page 12 Preparing for installation Model name for combination AM180MXVAFCAAZ AM200MXVAFCAAZ AM220MXVAFC3AZ AM240MXVAFC3AZ AM260MXVAFC3AZ Number of individual outdoor units AM080MXVAFC AM100MXVAFC AM120MXVAFC Combined outdoor unit AM140MXVAFC AM160MXVAFC AM180MXVAFC AM200MXVAFC Cooling (kW) 50 . 4 56 . 0 61 . 6 67 . 2 73 .
  • Page 13 Model name for combination AM380MXVAFC3AZ AM400MXVAFC3AZ AM420MXVAFC3AZ AM440MXVAFC3AZ AM460MXVAFC3AZ Number of individual outdoor units AM080MXVAFC AM100MXVAFC AM120MXVAFC Combined outdoor unit AM140MXVAFC AM160MXVAFC AM180MXVAFC AM200MXVAFC Cooling (kW) 106 . 4 112 . 0 117 . 6 123 . 2 129 . 6 Nominal capacity Cooling (Btu/h) 363 100...
  • Page 14 Preparing for installation Model name for combination AM580MXVAFC3AZ AM600MXVAFC3AZ AM620MXVAFC3AZ AM640MXVAFC3AZ Number of individual outdoor units AM080MXVAFC AM100MXVAFC AM120MXVAFC Combined outdoor unit AM140MXVAFC AM160MXVAFC AM180MXVAFC AM200MXVAFC Cooling (kW) 162 . 4 168 . 0 173 . 6 179 . 2 Nominal capacity Cooling (Btu/h) 554 200...
  • Page 15 Model name for combination AM740MXVAFC3AZ AM760MXVAFC3AZ AM780MXVAFC3AZ AM800MXVAFC3AZ Number of individual outdoor units AM080MXVAFC AM100MXVAFC AM120MXVAFC Combined outdoor unit AM140MXVAFC AM160MXVAFC AM180MXVAFC AM200MXVAFC Cooling (kW) 208 . 0 213 . 0 218 . 4 224 . 0 Nominal capacity Cooling (Btu/h) 709 800 726 800 745 300...
  • Page 16 Preparing for installation Model name for combination AM180MXVAFC/AZ AM200MXVAFC/AZ AM220MXVAFC/AZ AM240MXVAFC/AZ AM260MXVAFC/AZ Number of individual outdoor units AM080MXVAFC AM100MXVAFC AM120MXVAFC AM140MXVAFC AM160MXVAFC Combined outdoor unit AM180MXVAFC AM200MXVAFC AM220MXVAFC AM240MXVAFC AM260MXVAFC Cooling (kW) 50 . 4 56 . 0 61 . 6 67 .
  • Page 17 Model name for combination AM380MXVAFC2AZ AM400MXVAFC2AZ AM420MXVAFC2AZ AM440MXVAFC2AZ AM460MXVAFC2AZ Number of individual outdoor units AM080MXVAFC AM100MXVAFC AM120MXVAFC AM140MXVAFC AM160MXVAFC Combined outdoor unit AM180MXVAFC AM200MXVAFC AM220MXVAFC AM240MXVAFC AM260MXVAFC Cooling (kW) 106 . 4 112 . 8 117 . 8 123 . 2 128 .
  • Page 18 Preparing for installation Model name for combination AM580MXVAFC2AZ AM600MXVAFC2AZ AM620MXVAFC2AZ AM640MXVAFC2AZ Number of individual outdoor units AM080MXVAFC AM100MXVAFC AM120MXVAFC AM140MXVAFC AM160MXVAFC Combined outdoor unit AM180MXVAFC AM200MXVAFC AM220MXVAFC AM240MXVAFC AM260MXVAFC Cooling (kW) 162 . 4 168 . 0 173 . 6 179 .
  • Page 19 Model name for combination AM740MXVAFC2AZ AM760MXVAFC2AZ AM780MXVAFC2AZ AM800MXVAFC2AZ Number of individual outdoor units AM080MXVAFC AM100MXVAFC AM120MXVAFC AM140MXVAFC AM160MXVAFC Combined outdoor unit AM180MXVAFC AM200MXVAFC AM220MXVAFC AM240MXVAFC AM260MXVAFC Cooling (kW) 207 . 2 212 . 8 218 . 4 224 . 0 Nominal capacity Cooling (Btu/h) 707 000...
  • Page 20 Preparing for installation Model name for combination AM180MXVAJC/AZ AM200MXVAJC/AZ AM220MXVAJC/AZ AM240MXVAJC/AZ AM260MXVAJC/AZ Number of individual outdoor units AM080MXVAJC AM100MXVAJC AM120MXVAJC AM140MXVAJC AM160MXVAJC AM180MXVAJC Combined outdoor unit AM200MXVAJC AM220MXVAJC AM240MXVAJC AM260MXVAJC AM280MXVAJC AM300MXVAJC Cooling (kW) 50 . 4 56 . 0 61 .
  • Page 21 Model name for combination AM380MXVAJC2AZ AM400MXVAJC2AZ AM420MXVAJC2AZ AM440MXVAJC2AZ AM460MXVAJC2AZ Number of individual outdoor units AM080MXVAJC AM100MXVAJC AM120MXVAJC AM140MXVAJC AM160MXVAJC AM180MXVAJC Combined outdoor unit AM200MXVAJC AM220MXVAJC AM240MXVAJC AM260MXVAJC AM280MXVAJC AM300MXVAJC Cooling (kW) 106 . 6 112 . 0 117 . 6 123 .
  • Page 22 Preparing for installation Model name for combination AM580MXVAJC2AZ AM600MXVAJC2AZ AM620MXVAJC2AZ AM640MXVAJC2AZ Number of individual outdoor units AM080MXVAJC AM100MXVAJC AM120MXVAJC AM140MXVAJC AM160MXVAJC AM180MXVAJC Combined outdoor unit AM200MXVAJC AM220MXVAJC AM240MXVAJC AM260MXVAJC AM280MXVAJC AM300MXVAJC Cooling (kW) 162 . 6 168 . 0 173 . 8 179 .
  • Page 23 Model name for combination AM740MXVAJC2AZ AM760MXVAJC2AZ AM780MXVAJC2AZ AM800MXVAJC2AZ Number of individual outdoor units AM080MXVAJC AM100MXVAJC AM120MXVAJC AM140MXVAJC AM160MXVAJC AM180MXVAJC Combined outdoor unit AM200MXVAJC AM220MXVAJC AM240MXVAJC AM260MXVAJC AM280MXVAJC AM300MXVAJC Cooling (kW) 207 . 2 213 . 0 218 . 4 224 . 2 Nominal capacity Cooling (Btu/h) 707 000...
  • Page 24 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 25: Selecting Installation Location

    7 . Check the condition of the product periodically . - Check the installation site every 3 months and perform anti-corrosion treatment such as R-Pro supplied by SAMSUNG (Code : MOK-220SA) or commercial water repellent grease and wax, etc . , based on the product condition .
  • Page 26 Selecting installation location Outdoor unit Outdoor unit Sea breeze Outdoor unit Protection wall Outdoor unit Sea breeze Sea breeze Outdoor unit Protection wall should be constructed with a solid material that can block the sea breeze and the height and width of the wall should be 1 . 5 times larger than the size of the outdoor unit .

  • Page 27: Space Requirement For Installation

    Space requirement for installation f Space requirement was decided based on following conditions; Cooling mode, outdoor temperature of 35°C (95°F) . Larger space is required if the outdoor temperature is higher than 35°C (95°F) or if the place is heated easily by quantity of solar radiation .
  • Page 28 Space requirement for installation Module installation Unit: mm (inch) Over 300 (12) Height of the wall is Over 100 (4) Over 400 Over 400 Front side unlimited Over 100 (4) Front (16) (16) side Over 100 (4) <Case 1> <Case 2> Over 100 (4) Over 100 (4) Over 100 (4) Over 100 (4)

  • Page 29: 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 . Installation manual (1) Optional accessories f Following optional accessories are needed for connecting pipes between the indoor and outdoor units . Specification Classification Model Name...

  • Page 30: 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 31 Outdoor unit installation Base ground H beam or anti-vibration frame Over 200mm (8inch) Outdoor unit base mount and anchor bolt position Unit: mm (inch) Outdoor unit - Anti-vibration frame (4-Ø 12) Anti-vibration - Base ground (4-Ø 18) Unit: mm (inch) Classification Small type Large A type...
  • Page 32 Base construction and installation of the outdoor unit Examples of draining work f Construct the drainage ditch with reinforced concretes and make sure that water-proofing work is done . f For smooth draining of water, make sure to apply 1/50 slope . f Construct a drainage around the outdoor unit to prevent the water (from the outdoor unit) from stagnating, overflowing or freezing near the installation space .
  • Page 33 Cautions regarding on connecting the anchor bolt f Tighten the rubber washer to prevent the bolt connection part of the outdoor unit from corroding . CAUTION Rubber washer f Anchor specification Diameter of Anchor length Sleeve length Fastening Size Insert depth drill bit (a) torque Ø...
  • Page 34 Base construction and installation of the outdoor unit Caution for installing discharge duct f Static pressure of the discharge duct should be within the standard specification 78 . 4 5 Pa (0 . 3 15 W . G ) when CAUTION installing the duct .

  • Page 35: Installing The Wind/Snow Prevention Duct

    Installing the wind/snow prevention duct Installing the outdoor unit around the obstacles f It is necessary to install a wind/snow prevention duct(field supply) to direct exhaust from the fan horizontally, when it is difficult to provide a minimum space of 2m (6 . 5 6ft) between the air outlet and a nearby obstacle . Upper floor Discharged air Discharged air...
  • Page 36 Installing the wind/snow prevention duct Installing the outdoor unit in windy region f In windy regions such as near sea shores, protection wall or wind protection duct must be installed for normal operation of the outdoor unit . (Refer to the illustration of the snow prevention duct, for installing the wind protection duct . ) f Install the wind prevention duct with the consideration of major wind direction .

  • Page 37: 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 works WARNING with the service valve open, the pipe inhales the air and it makes the pressure inside of the refrigerant cycle abnormally high which may lead to explosion and injury .
  • Page 38 Refrigerant pipe installation Selecting refrigerant pipe First branch 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 an outdoor unit and the farthest indoor unit exceeds 90m (295 . 2 8ft), you must increase the size of the pipe (main pipe) by one grade which connects between the outdoor unit to the first branch joint .
  • Page 39 Size of the pipe connected to the outdoor unit (A) Select the size of the pipe according to the below table . Main pipe length within 90 m (295 ft) Size Up (Main pipe length over 90 m (295 ft)) Outdoor unit capacity Liquid pipe Gas pipe Liquid pipe...
  • Page 40 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 . ❋ ❋ 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 41 33 . 6 kW 40 . 0 kW 61 . 6 kW (114 . 6 MBH) (136 . 5 MBH) (210 . 2 MBH) Size of the pipe between the branch joint and the indoor unit Make a selection according to outdoor unit capacity . Pipe size (O.D.
  • Page 42 Refrigerant pipe installation f Branch joint (E) Select a branch joint according to the sum of indoor unit capacity which will be connected after the branch . ❋ ❋ However, if the size of the pipe between branch joints (E) is bigger than the size of the pipe connected to the outdoor unit (D), apply the pipe size (D) .
  • Page 43 Basic type - additional refrigerant 56 . 0 kW (191 . 1 MBH) Ø12 . 7 0 (5 m) (Ø1/2" (16 . 4 ft)) 14 . 0 kW (47 . 8 MBH) Ø12 . 7 0 (5 m) (Ø1/2" (16 . 4 ft)) Ø6 .
  • Page 44 Refrigerant pipe installation Branch joint f Basic amount of refrigerant within the outdoor unit - Amount of additional refrigerant has to be calculated based on the sum of all liquid pipe length . Classification AM080✴✴✴ AM100✴✴✴ AM120MXVAJC AM120MXVAFC AM140✴✴✴ AM160✴✴✴ AM180✴✴✴ Basic type [kg (lb)] 5 .
  • Page 45 Capacity (MBH) 1000 12 15 18 19 20 24 27 28 30 32 36 38 42 48 54 60 72 76 96 110 170 Model Concealed Floor Standing 0 . 1 2 0 . 2 2 0 . 2 2 0 .
  • Page 46 Refrigerant pipe installation Unit amount of Amount of Total amount Number of units refrigerant [kg/EA additional of additional Model name of Classification (lb/EA)] refrigerant [kg (lb)] refrigerant [kg (lb)] indoor unit ① ② ①×② ∑(①×②) 4way cassette 0 . 4 5 (0 . 9 9) 1 .
  • Page 47 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 48 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 49 5 . Check that you flared the pipe correctly . f Refer to below illustrations for correct and incorrect examples of flared pipe . Correct Inclined Damaged Surface Cracked Uneven Thickness • If foreign matters or burrs are not removed after cutting pipe, refrigerant gas may leak . •...
  • Page 50 Refrigerant pipe installation Pipe installation for an outdoor unit 1 . Direction of the pipe Refrigerant pipe can be withdrawn from the front, left and right side . Take necessary method to install the pipes according to the condition of the installation site .
  • Page 51 2 . Connecting refrigerant pipe for outdoor unit Classification Front side connection Right/left (and bottom) side connection • First, remove the piping cover from the outdoor • Separate the knock-out hole at the bottom side unit . of the unit and install the pipe . •...
  • Page 52 Refrigerant pipe installation 3 . Pipe installation between the outdoor units f You will need branch joints, which is an optional accessory, for connecting in between outdoor units in order to combine outdoor units in module . ❋ ❋ For optimal distribution of the refrigerant, you must use Y-joint as branch joint for connecting outdoor units. (Do not use T-joint) f When you install the outdoor units in module, there is no restriction of installation order among outdoor units .
  • Page 53 Examples of refrigerant pipe installation 1 . Using Y-joint 2 . Using distribution header...
  • Page 54 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 Installing with...
  • Page 55 Classification Example Remarks 45m (148') b+c+d+e+f+g+p ≤ 45m (148'), i ≤ 45m (148') Maximum or less First branch joint allowable ~ Farthest Indoor Pipe length 45m~90m length after unit (148'~295') Required conditions must be satisfied branch joint Note 1) ❋ ❋ When AM is installed, H2 is 15 m or less .
  • Page 56 Refrigerant pipe installation Installing the branch joints Branch joints must be installed ‘horizontally’ or ‘vertically’ . Horizontal installation Vertical installation • For A~J type branch joints : Connect the branch joint to the connection pipe with the provided reducer . •...
  • Page 57 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 58 Refrigerant pipe installation 3 . Install the distribution header horizontally . f Install the distribution header horizontally so that its ports does not face down . Socket Distribution header Horizon line Below ±10° Pipe (Separately purchased item) Horizon line Horizon line Below ±15°...
  • Page 59 ❋ ❋ Use the attached reducer according to the selected pipe size . To other outdoor unit Pipe To other outdoor joint or outdoor unit Reducer Reducer Pipe To other outdoor joint or Y-joint of the main pipe <Liquid side> ❋...

  • Page 60: Electrical Wiring Work

    Electrical wiring work Specification of the circuit breaker and power cable Standard single (Cooling Only) Model AM080MXVAFC 26 . 0 AM100MXVAFC 32 . 2 AM120MXVAFC 35 . 0 AM140MXVAFC 45 . 4 AM160MXVAFC 51 . 2 AM180MXVAFC 56 . 2 AM200MXVAFC 65 .
  • Page 61 ❋ ❋ When installing outdoor units in module, select the power supply cable according to the sum of outdoor unit capacity . (Refer to the table for each model . ) ❋ ❋ Power Supply cords of parts of appliances for outdoor use shall not be lighter than polychloroprene sheathed flexible cord .
  • Page 62 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 63 Power wiring diagram 3 phase 3wires 208-230V MCCB+ MCCB+ MCCB+ ELCB ELCB ELCB Main unit Sub unit 1 Sub unit 2 Main unit Sub unit Single phase 2 Communication wires 208-230V cable (Outdoor unit ~ Outdoor unit) MCCB + Communication cable (Outdoor unit ~ ELCB Indoor unit)
  • Page 64 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 4/6 (0 .
  • Page 65 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 66 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 67 Fixing the power cable 3 phase 3wires 208-230V ELCB MCCB+ Sub unit communication cable • Do not let the power cable come into contact with the pipes inside the outdoor unit . If the power supply cable touches the pipes, the vibration of the compressor is transferred to the pipes and can damage the power supply CAUTION cables or pipes, creating the danger of fire or explosion .
  • Page 68 Electrical wiring work Fixing the ground cable f Connect the ground cable to the grounding hole inside the power supply box . Grounding Withdrawing the power cable f Withdrawing from the front side - Connect the power cable protection tube into the power supply box as shown picture .
  • Page 69 Installing the Solution device f When the number of indoor units installed with the outdoor unit is 16 or less Terminal block with indoor unit Terminal block with outdoor unit sub module Terminal block with solution device...
  • Page 70 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 71: 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 High pressure Low pressure side...
  • Page 72 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 73: 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 74 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 75 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 76 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 77: Charging Additional Refrigerant

    Charging additional refrigerant f R-410A refrigerant is blended refrigerant . Add refrigerant in liquid form only . (Make sure to use the refrigerant bomb in upright position) f Measure the quantity of the refrigerant according to the length of the liquid side pipe . Add fixed quantity of the refrigerant using a scale .
  • Page 78 Charging additional refrigerant • Open the gas side and liquid side service valve completely after charging the refrigerant . (If you operate the air conditioner with the service valve closed, the important parts may be damaged . ) CAUTION • Put on safety equipment when charging refrigerant . •...

  • Page 79: Basic Segment Display

    Basic segment display Step Display content Display SEG 1 SEG 2 SEG 3 SEG 4 At initial power input Checking segment display “8” “8” “8” “8” SEG 1 SEG 2 SEG 3 SEG 4 Number of communicated While setting communication units between indoor and outdoor unit Number of connected indoor units...

  • Page 80: Setting Outdoor Unit Option Switch And Key Function

    Setting outdoor unit option switch and key function Setting outdoor unit option switches: A TYPE Switch Setting Function Remarks Setting can be done from the main outdoor unit Setting total number of installed indoor unit only (sub unit: setting is unnecessary) SW51 / SW52 SW51: Tens digit, SW52: Units digit...
  • Page 81 Setting outdoor unit option switches: B TYPE f Setting outdoor install option Step Button Display Description Note Start Outdoor unit address Outdoor unit Step1 Setting required display Outdoor unit address Press (K1+K2) 00: Main unit for 2 seconds Unit address K4 x 1 time 01: Sub1 unit Step2...
  • Page 82 Setting outdoor unit option switch and key function 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 83 Optional item Input unit SEG1 SEG2 SEG3 SEG4 Function of the option Remarks Disabled (Factory default) Emergency Set compressor 1 as E560 will occur when all operation for Individual malfunction state the compressors are set as compressor malfunction state . Set compressor 2 as malfunction malfunction state...
  • Page 84 Setting outdoor unit option switch and key function Optional item Input unit SEG1 SEG2 SEG3 SEG4 Function of the option Remarks Disabled (Factory default) LEVEL 1 / Auto Enables the silent mode for night- LEVEL 2 / Auto time in cooling mode (It operates automatically depending on the LEVEL 3 / Auto Silent mode...
  • Page 85 Optional item Input unit SEG1 SEG2 SEG3 SEG4 Function of the option Remarks Unused option Main Unused option Unused option by this model Unused option Main Unused option Unused option by this model Disabled (Factory default) Enabling this setting will command the air conditioner to cool faster at initial start-up .
  • Page 86 Setting outdoor unit option switch and key function Setting key operation and checking the view mode with tact switch (A Type) (B Type) K1 control KEY operation Display on segment Press and hold Auto trial operation “K” “K” “BLANK” “BLANK” 1 time K1 (Number of KEY operation...
  • Page 87 • After installing the product, be sure to perform leak tests on the piping connections . After pumping down refrigerant to inspect or relocate the outdoor unit, be sure to stop the compressor and then remove the WARNING connected pipes . - Do not operate the compressor while a valve is open due to refrigerant leakage from a pipe or an unconnected or incorrectly connected pipe .
  • Page 88 Setting outdoor unit option switch and key function (B Type) (A Type) Display on segment K4 (Number of KEY operation press) SEG 1 SEG2, 3, 4 1 time Outdoor unit model AM160MXVAFC  Off, 1, 6 2 times Order frequency (Compressor 1) 120 Hz ...
  • Page 89 K4 (Number of Display on segment press) Displayed content Press and hold page1 page2 the K4 to enter the setting 1 time Main version MAIN Version (ex . 1412) 2 times Hub version Version (ex . 1412) 3 times Inverter 1 version INV1 Version (ex .

  • Page 90: Things To Check After Completing The Installation

    Things to check after completing the installation 1 . Before supplying the power, use DC 600 V (AM✴✴✴✴XVAF✴) insulation resistance tester to measure the power (3 phase: R, S, T) terminal and the outdoor unit grounding . - Measurement should be over 30MΩ . 2 .
  • Page 91 • 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 cables? • Have you performed the earthing work 3 to the outdoor unit? Electrical wiring work •...

  • Page 92: Inspection And Test Operation

    Inspection and test operation Precautions before test operation • When the outdoor temperature is low, turn on the main power 6 hours before beginning the operation . CAUTION - If you start the operation immediately after turning on the main power, it may cause serious damage to the part within the product .
  • Page 93 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 . (UP Mode will be cleared automatically when auto trial mode is completed .

  • Page 94: Inspection And Trial Operation

    Inspection and trial operation Measure to take when E503 error occurs (When "inspection required" sign is appeared on result report of S-NET pro) No . Is the service valve of the outdoor unit Open the service valve of the outdoor unit opened? No .
  • Page 95 Measure to take when E505, E506 error occurs Eable vacuum mode on all outdoor units No . Is the service valve of the outdoor unit Open the service valve of the outdoor unit opened? Is the value on the pressure sensor of the installed outdoor unit satisfy the No .

  • Page 96: Automatic Refrigerant Amount Detection Function

    Automatic refrigerant amount detection function This function detects amount of refrigerant in the system through refrigerant amount detection operation Start times Input S-CHECKER signal Press the Tact switch "K2" 5 Satisfy the temperature condition Satisfy the temperature condition Check the amount of refrig er Check the amount of refrig er Check stability Check stability...
  • Page 97 • If the temperature is out of the guaranteed range below, exact result will not be obtained . - Indoor: 20~32 °C CAUTION - Outdoor: 5~43 °C • If the operation cycle is not stable, the operation of refrigerant amount check may be forcibly finished . •...
  • Page 98 DB68-08430A-01...

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