Samsung MCU-S4NEE2N - Manuals

Page 2 - Contents

2 Safety precautions ..........................................................................................................................................................................................................................3 Preparing the installation ...................................

Page 3 - FOR INSTALLATION; WARNING; Safety precautions

3 The safety information and precautions below must be kept for the safety of users and installers. Before installing an air conditioner, please read this manual thoroughly to ensure that you know how to safely and efficiently install a new appliance. J DVM S air conditioner uses R-410A refrigerant....

Page 4 - CAUTION

4 Safety precautions FOR INSTALLATION WARNING Make sure to connect wires thoroughly and fix them firmly so that no outer pressure of the wires would put on the terminal block. X If the terminal is loose, it may generate heat and cause a ﬁre. Supplied power should be more or less than 2% of the rated...

Page 5 - Preparing the installation

5 Accessories Please check if items below are included in installation accessories. Name Insulation (for pipe) Insulation (for base) Installation manual Pattern sheet Cable tie Pipe socket Drain socket Shape Name Y-connector [Ø9.52mm(3/8") ,Ø15.88mm(5/8") (Except MCU-S2NEK1N)] Shape Selectin...

Page 6 - MCU indoor/outdoor unit compatible table

6 Preparing the installation MCU indoor/outdoor unit compatible table Before installing MCU, refer to the compatible table below and find the model before installation. Outer diameter AM ✴✴✴✴ X ✴✴✴✴ MCU MCU-S6NEE1NMCU-S4NEE1NMCU-S4NEE2NMCU-S2NEK1N MCU AM ✴✴✴✴ N ✴✴✴✴ MCU Kit Model Description MCU-S6N...

Page 7 - Space requirements

7 1. Since refrigerant noise can be generated during the MCU operation, do not install the unit on the ceiling of the places that requires silence such as bedrooms, libraries, hospitals and offices etc. 2. Do not install the MCU in the ceiling of the living area. Otherwise, noise generated from the ...

Page 10 - Installing the unit

10 Installing the unit 4) Cautions about MCU installation. X When fixing the unit at the upper place using suspension bolts, use a nut and washer to vertically fasten the unit. X There are four spots to fix the suspension bolts. Make sure every spot is fixed. X The upper and the lower side of MCU is...

Page 11 - Method and cautions on brazing the pipe; Keeping refrigerant pipe clean and dry; Brazing the pipe; Method and cautions on refrigerant pipe insulation; Refrigerant piping works

11 Method and cautions on brazing the pipe Keeping refrigerant pipe clean and dry X To prevent foreign materials or water from entering the pipe, it is important to keep the refrigerant pipe clean, dry and sealed during installation. Exposure place Exposure time Sealing type Outside exposure Longer ...

Page 13 - Draining form; Without the drain pump; Wiring works; Installing the circuit breaker and wires

13 Draining form X In a standard condition, drain installation is not required X In a high humidity condition, drain installation is required High humidity condition: Indoor temperature of 30°C, relative humidity of 85% within MCU installation space Without the drain pump 1. Install horizontal drain...

Page 15 - Installing the wire

15 Installing the wire X Supply the 220-240V/208-230V power to L1, L2 of MCU separately with outdoor unit. X Connect the communication cable from the outdoor unit to F1, F2 of MCU. X Power Line and communication line must be connected as shown in drawing. Case 1 Case 2 Indoor Unit Indoor Unit 220-24...

Page 16 - Setting address and option; PCB Layout

16 Wiring works X Choose the compressed socket based on the cross-section of the connecting wire. Silver solder Nominal dimensions for cable [mm2 (inch2)] 1.5 (0.002) 2.5 (0.003) 4 (0.006) Nominal dimensions for screw [mm (inch)] 4 (0.157) 4 (0.157) 4 (0.157) 4 (0.157) 4 (0.157) B Standard dimension...

Page 17 - Setting MCU address; Connecting indoor with Y-Connector to MCU

17 Setting MCU address X Set the rotary switch of the indoor unit ADDRESS on the MCU PCB same as the ADDRESS of connected indoor unit. X When installing more than 2 MCU, set each rotary switch for MCU ADDRESS properly. 0123 4 5 6 7 8 9A BC D E F Outdoor Unit PCB MCU PCB MCU PCB Setting the number of...

Page 18 - Setting MCU option

18 Wiring works Setting MCU option DIP switch for indoor unit setting (ON:Use, OFF:Not use) Rotary switch for MCU ADDRESS Rotary switch for Indoor unit ADDRESS X Address on the rotary switch at the MCU PCB and the rotary switch on the indoor unit must be same. X When installing more than 2 MCU’s set...

Page 20 - K4 Switch (Electronic Valve Manual Control)

20 Wiring works K4 Switch (Electronic Valve Manual Control) X According to the push time of K4 Switch, A_C, A_H, …, F_C, F_H, Liquid bypass solenoid valve opens in order. X In Electronic Valve Manual Control mode, valve operates by K4 Push time irrespective of indoor operation mode. X In Electronic ...

Page 21 - Commisioning

21 J After installing MCU, check those items below. If you find something unfulfilled, refer to the manual to complete it. Item Check 1. If the gas leaking test has been completed or not. 2. If MCU has been fixed securely enough to avoid the danger of vibration and falling or not. 3. The Insulation ...

Page 22 - Possible combination of indoor unit

22 (unit : A) Capacity (kBtu) Model 6 7.5 9 9.5 12 15 18 20 24 27 30 36 48 54 60 72 76.8 96 1way cassette (AM 777 FN1DC 7 ) 0.23 0.25 0.28 4way cassette S(600x600) (AM 777 FNNDC 7 ) 0.17 0.19 0.27 0.3 4way cassette S(AM 777 FN4DC 7 ) 0.25 0.25 0.25 0.3 0.5 0.56 0.75 Floor Standing Unit (AM 777 JNFD ...

Page 23 - Memo