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Samsung AC BNZDCH Series Installation Manual

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Air conditioner
Installation manual
AC***BNZDCH
• Thank you for purchasing this Samsung air conditioner.
• Before operating this unit, please read this manual carefully and retain it for future reference.
DB68-11271A-02_IM_CAC Universal AHU Indoor_AA_EN_.indd 1
2022-09-15 오전 9:53:13

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  • Page 1 Air conditioner Installation manual AC***BNZDCH • Thank you for purchasing this Samsung air conditioner. • Before operating this unit, please read this manual carefully and retain it for future reference. DB68-11271A-02_IM_CAC Universal AHU Indoor_AA_EN_.indd 1 2022-09-15 오전 9:53:13...

  • Page 2: Table Of Contents

    Contents Safety Precautions Safety Precautions Installation General Information Product Inspection Accessories Selecting the installation location Indoor unit installation Refrigerant piping Performing leak test & insulation Additional refrigerant Drain pipe installation Water leakage test Drain pipe insulation Wiring Work Wire Diagram Selecting motor speed Blower CFM tables Connecting the External Floating switch...

  • Page 3: Safety Precautions

    ▶ This manual explains how to install an indoor unit with a split system with SAMSUNG units. The use of other types of units with different 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.
  • Page 4 Safety Precautions ▶ After completing the installation, always carry out a functional test and provide the instructions on how to operate the air conditioner to the user. ▶ Do not use the air conditioner in environments with hazardous substances or close to equipment that release free flames to avoid the occurrence of fires, explosions or injuries.

  • Page 5: Installation

    These models may be used with or without electric heat. ‐ Only use electric heat that is designed for this unit and provided by Samsung. ‐ The direct drive, five speed constant torque motors provide a selection of air volume to match the application.

  • Page 6: Product Inspection

    There are no shipping or spacer brackets which need to be removed before startup. See local Distributor for more information. Samsung assumes no liability for freight damage. Also check to be sure all accessories such as heater kits, and coils are available. Installation of these accessories should be accomplished before the air handler is set in place or the connecting of the wiring, electric heat, ducts or piping.
  • Page 7 Dimensions LEFT SIDE FRONT RIGHT SIDE BOTTOMs DIMENSIONAL DATA MULTI-POSITION AIR HANDLER MODEL AC012BNZDCH inch 17.50 43.00 21.00 15.50 12.50 13.50 11.00 6.75 16.75 14.00 11.00 8.50 2.00 4.00 2.00 AC018BNZDCH mm 444.50 1092.20 533.40 393.70 317.50 342.90 279.40 171.45 425.45 355.60 279.40 215.90 50.80 101.60 50.80 AC024BNZDCH inch 21.00 48.00 21.00 19.00...

  • Page 8: Indoor Unit Installation

    Indoor unit installation Refrigerant pipe work must be done before installing the indoor unit. Location Access for servicing is an important factor in the location of any air handler. Provide a minimum of 30 inches in front of the appliance for access to the control box, heating elements, blower and air filters. This access may be provided by a closet door or by locating the appliance so that a wall or partition is not less than 30 inches from the front access panel.
  • Page 9 This appliance is approved for zero (0) inches clearance to combustible material on any part of the air handler exterior casing and the inlet or outlet ducts providing NO electric heater is being used. There is a one (1) inch clearance on the supply plenum and supply air duct when an electric heater is installed in the appliance.
  • Page 10 Indoor unit installation Return air requirements Closet Wall Typical Closet Installations Provisions shall be made to permit the air in the rooms and the living spaces to return to the air handler. Failure to comply may cause a reduction in the amount of return air available to the blower, causing reduced air flow resulting in improper heating and cooling of the living space.
  • Page 11 Arrangement: Unit is shipped from the factory arranged to be installed in an upflow or horizontal left (right to left air flow) position. Horizontal left means when the unit is laid on its side and you are facing the unit, the supply air opening is to the left and the return opening is to the right.
  • Page 12 Indoor unit installation Horizontal application Horizontal applications will normally be used in an attic or crawl space. This type of installation requires supply air plenum or duct to be connected to the supply collar and a return air plenum or duct be attached to the unit inlet collar. The supply ducts will be connected to the supply air plenum and routed through the attic to a register in each room.
  • Page 13 Closet installation Prior to installing the air handler make sure holes are cut into the floor for refrigerant tubing, drain line, electrical wiring, and control wiring. 1. Remove the top shipping cover and corner posts. 2. Remove the bottom shipping cover. Remove the blower and control box access panel (door).

  • Page 14: Refrigerant Piping

    Refrigerant piping Air Handlers with DX type evaporator coils require liquid and suction piping sized in accordance with condensing unit manufacturer’s instructions. The evaporator coils have sweat copper connections. Refrigerant lines should be soldered with silver solder or high temperature brazing alloy. DRY NITROGEN MUST BE FLOWED THROUGH REFRIGERANT LINES DURING SOLDERING OPERATION.

  • Page 15: Performing Leak Test & Insulation

    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 595 PSI (4.1MPa). LEAK TEST WITH R-410A (after opening valves) Before opening valves, discharge all the nitrogen in the system and create vacuum.
  • Page 16 Performing leak test & insulation 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 86 °F(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.

  • Page 17: Additional Refrigerant

    Additional refrigerant • System refrigerant volume is based on linear feet of liquid line pipe and indoor equipment model/quantity. • Refer to the outdoor unit installation manuals for information regarding refrigerant volume for system components. English DB68-11271A-02_IM_CAC Universal AHU Indoor_AA_EN_.indd 17 2022-09-15 오전...

  • Page 18: Drain Pipe Installation

    Drain pipe installation The air handler “A” coil drain pan has two ¾” NPT (Φ19.05mm) female primary and two secondary connections (left or right hand). The horizontal pan has two ¾” NPT (Φ19.05mm) female, one primary and one secondary. Piping from each fitting used is to have 2 inch (50.8mm) minimum trap and each run in such a manner as to provide enough slope for adequate drainage to a visible area.

  • Page 19: Water Leakage Test

    Water leakage test 1. Pour water into the condensate pan. 2. Make sure that draining is done properly by checking end of the drain pipe. 3. If water leakage occurs, make sure the indoor unit is level. Also verify the drain pipe is installed with a downward slope away from the indoor unit.

  • Page 20: Wiring Work

    Wiring Work • For personal safety be sure to turn the electrical power “OFF” at the main entrance (Home Circuit Breaker Box) and at the unit control box circuit breakers before attempting any service or WARNING maintenance operations. Homeowners should never attempt to perform any maintenance which requires opening the air handler control box door.
  • Page 21 Between Indoor and Outdoor Connection cable Specifications(Common in use) Indoor Power supply Communication Cable Power Supply Max/Min(V) Indoor Power cable 0.0039in ↑,3wires 0.0012 inch ↑, 2 wires 208~230V/60Hz ±10% (2.5mm ↑,3wires) (0.75mm ↑, 2 wires) • Selecting wire size must comply with local and national code. •...
  • Page 22 Wiring Work Single circuit line wiring connections If an accessory heat kit is installed, power must enter the unit on the top or the top-left side of the unit as shown below (A). CAUTION 1. Before wiring work, you must turn off all power source. 2.
  • Page 23 Swing the hinged control plate outward exposing the back side of the control box. Remove the screws holding the electric heat kit block off plate. Save the screws. 8. Carefully pass the accessory heating element through the rectangular opening in the discharge of the air handler and secure the heating element with the screws from step 8.
  • Page 24 Wiring Work 16. Connect the green (ground) wire to the ground lug to the left of the accessory heat kit breakers and tighten the ground lug screw. Make sure to leave extra slack in the ground wire to allow service to the unit without disconnecting the ground wire. If the heat kit requires 2 circuits (dual circuit) , both circuit ground wires must be connected to a ground lug (dual circuit kits have two individual ground lugs).
  • Page 25 Power supply connections If the air handler has been installed prior to installing the electric heaters or if an older unit is being replaced, the supply power wires must be checked to make sure the wires are the proper sizes to handle the current load for the heaters. Refer to table below for correct wire size.
  • Page 26 Wiring Work Communication wiring connections • Communication wires connect through side of air handler. • Use an approved connector at the cabinet of the unit to prevent pulling or shorting of control wires. • Control wire must be rated for 600V minimum. •...
  • Page 27 • Select the power cable in accordance with relevant local and national regulations. • Wire size must comply with local and national code. CAUTION • Power supply cords of parts of appliances for outdoor use shall not be lighter than polychloroprene sheathed flexible cord.

  • Page 28: Wire Diagram

    Wire Diagram Wire Diagram AC012BNZDCH, AC018BNZDCH, AC024BNZDCH, AC030BNZDCH, AC036BNZDCH, AC042BNZDCH, AC048BNZDCH 28 English DB68-11271A-02_IM_CAC Universal AHU Indoor_AA_EN_.indd 28 2022-09-15 오전 9:53:23...

  • Page 29: Selecting Motor Speed

    Selecting motor speed Selecting the Constant Torque Blower Speed This air handler uses a Constant Torque high efficiency motor. This motor operates on 240 VAC. The motor speed taps are 24 VAC, 0.03 amps, 60 Hz, 1 PH. The speed taps can be adjusted according to installation needs. Table 4 shows the motor lead connection labeling and the connection denitions.

  • Page 30: Blower Cfm Tables

    Blower CFM tables Blower CFM tables AC012BNZDCH HP : 1/3 Default motor taps : High/Mid/Low = 4/3/2. Motor Tap P(inwg) Motor Tap P(inwg) 0.25 0.25 0.25 0.25 0.25 Q (CFM) 30 English DB68-11271A-02_IM_CAC Universal AHU Indoor_AA_EN_.indd 30 2022-09-15 오전 9:53:23...
  • Page 31 AC018BNZDCH HP : 1/3 Default motor taps : High/Mid/Low = 4/3/2. Motor Tap P(inwg) Motor Tap P(inwg) Q (CFM) English DB68-11271A-02_IM_CAC Universal AHU Indoor_AA_EN_.indd 31 2022-09-15 오전 9:53:23...
  • Page 32 Blower CFM tables AC024BNZDCH HP : 1/3 Default motor taps : High/Mid/Low = 4/3/2. Motor Tap P(inwg) Motor Tap P(inwg) 1000 Q (CFM) 32 English DB68-11271A-02_IM_CAC Universal AHU Indoor_AA_EN_.indd 32 2022-09-15 오전 9:53:23...
  • Page 33 AC030BNZDCH HP : 1/2 Default motor taps : High/Mid/Low = 4/3/2. Motor Tap P(inwg) Motor Tap P(inwg) 1130 1103 1074 1042 1009 1198 1168 1138 1108 1077 1045 1012 1065 1039 1010 1000 1200 1400 Q (CFM) English DB68-11271A-02_IM_CAC Universal AHU Indoor_AA_EN_.indd 33 2022-09-15 오전...
  • Page 34 Blower CFM tables AC036BNZDCH HP : 1/2Default motor taps:High / Mid /Low = 4/3/2. Motor Tap P(inwg) Motor Tap P(inwg) 1354 1331 1306 1279 1250 1218 1184 1147 1108 1067 1507 1492 1469 1439 1402 1358 1306 1246 1180 1106 1171 1144 1115...
  • Page 35 AC042BNZDCH HP : 1/2Default motor taps:High / Mid /Low = 4/3/2. Motor Tap P(inwg) Motor Tap P(inwg) 1331 1561 1187 1502 1054 1444 1385 1328 1270 1212 1155 1098 1041 1406 1641 1301 1599 1201 1554 1106 1508 1016 1460 1410 1358 1304...
  • Page 36 Blower CFM tables AC048BNZDCH HP : 3/4Default motor taps:High / Mid /Low = 4/3/2. Motor Tap P(inwg) Motor Tap P(inwg) 1422 1650 1308 1619 1200 1585 1097 1547 1001 1507 1463 1416 1365 1312 1255 1486 1764 1407 1742 1329 1716 1254 1686...

  • Page 37: Connecting The External Floating Switch

    3. Set SEG8 for the Install option (02 mode) to '1' or '2'. (Refer to "Setting an indoor unit installation option") • The External Floating switch is not sold separately by Samsung. NOTE English DB68-11271A-02_IM_CAC Universal AHU Indoor_AA_EN_.indd 37...

  • Page 38: Emergency Temperature Output (Eto) Function

    Emergency Temperature Output (ETO) function Emergency Temperature Output (ETO) function Emergency Temperature Output (ETO) function (for the multi system, this function is not supported.) • In order to deploy the ETO function, the MIM-B14, an external contact interface module, must be installed in each indoor unit.
  • Page 39 ETO operation specifications 1. Main indoor unit ‐ Based on the external contact control settings, the main indoor unit decides whether to generate output when an error (indoor unit stop) occurs. ‐ Based on the ETO settings, the main indoor unit decides whether to generate output according to the temperature and time conditions.
  • Page 40 Installation Procedure Setting the indoor unit addresses and the installation options with wireless remote controller You cannot set both of the indoor unit addresses and the installation options in a batch: set both of them respectively. Receiver & display unit must be connected to the indoor 2.
  • Page 41 Take the steps presented in the following table: Steps Remote control display 1. Set the SEG2 and SEG3 values: a. Set the SEG2 value by pressing the (Low Fan) button repeatedly until the value you want to set appears on the remote control display. SEG2 b.
  • Page 42 Installation Procedure Steps Remote control display 5. Set the SEG6 and SEG8 values: a. Set the SEG6 value by pressing the (Low Fan) button repeatedly until the value you want to set appears on the remote control display. SEG6 b. Set the SEG8 value by pressing the (High Fan) button repeatedly until the value you want to set appears on the remote control display.
  • Page 43 Steps Remote control display 9. Set the SEG11 and SEG12 values: a. Set the SEG11 value by pressing the (Low Fan) button repeatedly until the value you want to set appears on the remote control display. SEG11 b. Set the SEG12 value by pressing the (High Fan) button repeatedly until the value you want to set appears on the remote control display.
  • Page 44 Installation Procedure Steps 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. SEG16 b. Set the SEG17 value by pressing the (High Fan) button repeatedly until the value you want to set appears on the remote control display.
  • Page 45 Steps Remote control display 17. Set the SEG21 and SEG22 values: a. Set the SEG21 value by pressing the (Low Fan) button repeatedly until the value you want to set appears on the remote control display. SEG21 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.
  • Page 46 Installation Procedure 3. Check whether the option values that you have set are correct by pressing the (Mode) button repeatedly [SEG2, SEG3] [SEG6, SEG8] [SEG9, SEG10] [SEG11, SEG12] [SEG4, SEG5] [SEG14, SEG15] [SEG16, SEG17] [SEG18, SEG20] [SEG21, SEG22] [SEG23, SEG24] 4.

  • Page 47: Installation Procedure

    Installation Procedure Setting the indoor unit option code with wired remote controller In order to set the indoor unit option code use the wired remote controller and follow the directions below. Data bit Page number Option Code 1 2 34 56 Main Menu 1 2 3 Sub-menu...
  • Page 48 Installation Procedure • Option code will not be applied if you don’t press the CAUTION • Setting indoor unit option code is only possible in Master wired remote controller. You can only check the indoor unit option code in Slave wired remote controller. •...
  • Page 49 Setting an indoor unit installation option with wired remote controller In order to check and set the indoor unit installation option code use the wired remote controller and follow the directions below. 1. Press the buttons at the same time for more than 3 seconds and then a Main menu will be displayed. 2.
  • Page 50 Installation Procedure • If you are using on or off controller, set RMC address. Option SEG1 SEG2 SEG3 SEG4 SEG5 SEG6 Function Page Mode Setting main address Indoor unit number Indoor unit number Indication Details Indication Details Indication Details Indication Details Indication Details No main Indication address...
  • Page 51 Setting the installation options in a batch Option No. for an indoor unit address: 02XXXX-1XXXXX-2XXXXX-3XXXXX Make sure that the power is supplied to the indoor unit. If the indoor unit is not plugged in, it must include a power supply. 1(L) 2(N) Set the installation options of indoor units, by referring to the following table and by following the steps in "Common steps for setting the addresses and options"...
  • Page 52 Installation Procedure Option SEG 1 SEG 2 SEG 3 SEG 4 SEG 5 SEG 6 Use of external room temperature sensor / Minimizing fan operation when thermostat Function Page Mode Central control is off Details Minimizing Use of external Indication operation Indication Details Indication Details room...
  • Page 53 Option SEG 7 SEG 8 SEG 9 SEG 10 SEG 11 SEG 12 Use of Hot auxiliary Controller variables for auxiliary Function Page Use of drain pump Use of Hot Coil heater heater Indication Details Indication Details Indication Details Indication Details Details Time Indication...
  • Page 54 Installation Procedure Option SEG 13 SEG 14 SEG 15 SEG 16 SEG 17 SEG 18 Setting the output Maximum filter Function Page Use of external control Buzzer control of extermal control usage time Indication Details Indication Details Indication Details Indication Details Indication Details Disuse On/Off...

  • Page 55: Final Checks And User Tips

    Final Checks and User Tips Do not install the electronic heater in the external supply duct connected to the AHU. CAUTION Electronic heater should not be installed. Discharge side Suction side Air Flow Indoor unit To complete the installation, perform the following checks and tests to ensure that the air conditioner operates correctly. Check the followings.

  • Page 56: Appendix

    Troubleshooting Troubleshooting • If an error occurs during the operation, one or more 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 &...
  • Page 57 Indicators Concealed Type Abnormal conditions Remarks GREEN Standard Type 1. No communication for 2 minutes between indoor units (Communication error for more than 2 minutes) 1. Indoor unit 2. Indoor unit receiving the communication error from error (Display outdoor unit is unrelated with operation) 3.
  • Page 58 Troubleshooting Wired remote controller If an error occurs, is displayed on the wired remote controller. If you would like to see an error code, press the Test button. Error mode Contents Error type Indoor unit communication error Communication error Duplicated address setting error Communication error No response error address from indoor unit Communication error...
  • Page 59 Error mode Contents Error type Cooling operation blocked Self diagnostic error Outdoor fan 1 error Self diagnostic error [Inverter] Compressor startup error Outdoor unit protection control error [Inverter] Total current error/PFC over current error Outdoor unit protection control error OLP Overheat and Comp. Stop Outdoor unit protection control error [Inverter] IPM over current error Outdoor unit protection control error...
  • Page 60 DB68-11271A-02_IM_CAC Universal AHU Indoor_AA_EN_.indd 60 2022-09-15 오전 9:53:35...

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