User manual SAMSUNG ND220HHXEA

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[. . . ] Duct Type Series BIG duct : NDHH Air Conditioner installation manual imagine the possibilities Thank you for purchasing this Samsung product. To receive more complete service, please register your product at www. samsung. com/register E DB98-33764A(1) Contents Safety Precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Accessories . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Selecting the Installation Location . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [. . . ] 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. Concrete Insert 2 Insert bolt anchors, use existing ceiling supports or construct a suitable support as shown in figure. Hole in anchor Hole in plug 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. Suspension bolt( 3/8" or M10) 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. 5 Hang the indoor unit to the suspension bolts between two nuts. Note Piping must be laid and connected inside the ceiling when suspending the unit. There are some examples of correctly and incorrectly cut edges below. Oblique Rough Burr 2 3 4 To prevent a gas leak, remove all burrs at the cut edge of the pipe using a reamer. Carry out flaring work using flaring tool as shown below. Flaring tool A York Die Die Clutch type Wing nut type Copper pipe Flare nut Copper pipe Outer diameter D(mm) 6. 35 9. 52 12. 70 15. 88 Flare tool for R410A clutch type 0~0. 5 0~0. 5 0~0. 5 0~0. 5 A(mm) Conventional flare tool Clutch type Wing nut type 1. 0~1. 5 1. 5~2. 0 1. 0~1. 5 1. 5~2. 0 1. 0~1. 5 1. 5~2. 0 1. 0~1. 5 1. 5~2. 0 5 Check if you flared the pipe correctly. There are some examples of incorrectly flared pipes below. Correct Inclined Damaged Surface Cracked Uneven Thickness 6 Align the pipes and tighten the flare nuts first manually and then with a torque wrench, applying the following torque. Outer diameter Connection Flare dimension (mm) Torque(kgf·cm) (mm) 6. 35 9. 52 12. 70 15. 88 145~175 333~407 505~615 630~769 8. 70~9. 10 16. 20~16. 60 19. 30~19. 70 90° ±2° Flare shape (mm) 45° ± 2° 12. 80~13. 20 R 0. 4~0. 8 In case of needing brazing, you must work with Nitrogen gas blowing. E-11 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 R410A, 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 R410A (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 R410A. Leak check Discharge all the nitrogen to create a vacuum and charge the system. Insulation Once you have checked that there are no leaks in the system, you can insulate the piping and hose. No gap 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. NBR(T13. 0 or thicker) 2 Insulation cover pipe Insulation pipe Indoor unit 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. Be sure to overlap the insulation Must fit tightly against body without any gap. 4 The pipes and electrical cables connecting the indoor unit with the outdoor unit must be fixed to the wall with suitable ducts. All refrigerant connection must be accessible, in order to permit either unit maintenance or removing it completely. E-12 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 install 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. Insulation's heat-resistance temperature should be more than 120. Pipe Pipe size Insulation Type(Heating/Cooling) Standard High humidity [30°C, 85%] [30°C, over85%] EPDM, NBR 9t 9t 13t 13t 13t 19t Remarks Liquid pipe Gas Pipe ø6. 35~ø9. 52 ø12. 70~ø50. 80 ø6. 35 ø9. 52 ø12. 70 ø15. 88 ø19. 05 ø22. 23 ø25. 40 ø28. 58 ø31. 75 ø38. 10 ø44. 45 ø50. 80 25t 19t Internal temperature is higher than 120°C 32t 25t 38t 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 Insulation 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 Liquid pipe Gas pipe thicker insulation. 10mm 10mm 10mm Install the insulation not to get wider and use the adhesives on the connection part of it to prevent moisture from entering. outside sunlight. Gas pipe Liquid pipe Wind the refrigerant pipe with insulation tape if it is exposed to 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 a a×3 Refrigerant pipe insulation E-13 Drain pipe and Drain hose Installation Care must be taken when installing the drain hose for the indoor unit to ensure that any condensate water is correctly drained outside. The drain hose can be installed to the right or left side of the base pan. 1 Unscrew the 4 tapped screws to remove the cover of the drain hose connection port. Drain hose connection port 2 Insert the flexible hose to the drain hose port. Note Fix the flexible hose to the indoor unit with the supplied cable clamp securely. [. . . ] Strength of the installation site Tightness of pipe connection to detect a gas leak Electric wiring connections Heat-resistant insulation of the pipe Drainage Earth conductor connection Correct operation (follow the steps below) After finishing the installation of the air conditioner, you should explain the following to the user. Refer to appropriate pages in the User's Manual. 1 2 3 4 5 6 How to start and stop the air conditioner How to select the modes and functions How to adjust the temperature and fan speed How to adjust the airflow direction How to set the timers How to clean and replace the filters When you complete the installation successfully, hand over the User's Manual and this Installation Manual to the user for storage in a handy and safe place. Note E-24 Troubleshooting Detection of errors If an error occurs during the operation, an LED flickers and the operation is stopped except the LED. If you re-operate the air conditioner, it operates normally at first, then detect an error again. LED Display on the receiver & display unit LED Display Indicators Concealed Type Abnormal conditions Operating Green Red Standard Type Power reset Error of temperature sensor in indoor unit (OPEN/SHORT) Error of heat exchanger sensor in indoor unit Error of heat exchanger OUT sensor in indoor unit Error of outlet temperature sensor in indoor unit (OPEN/SHORT): For heat pump models only Error of outdoor temperature sensor Error of COND sensor Error of DISCHARGE sensor 1. No communication for 2 minutes between indoor unit and outdoor unit (communication error for more than 2 minutes) 2. [. . . ]

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