Samsung MCU-Y6NEE Installation Manual Download Page 21

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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

• Connect the power cable using the compressed ring terminal.

MCU

Indoor unit

MCU

• Communication cables are connected as shown above when installing MCU.
• When installing electricity and wires of MCU, please proceed the work refering to the installation manual of the

HR outdoor unit.

How to set up



Set the rotary switch located at outdoor unit PCB to match the number of connected indoor units (8).



Set the rotary switch located at outdoor unit PCB to match the number of connected MCU (2).



When installing more than 2 MCUs, set each rotary switch of MCU differently.



Set rotary switch located at MCU PCB to match indoor unit address.



Set the DIP switch of MCU to “OFF” position for the indoor units that is not connected.

Setting the

number of

Indoor Unit

Outdoor Unit

PCB

MCU PCB

Indoor unit address

MCU address

Indoor unit address

Indoor unit

Setting the

number of

MCU

MCU address

















MCU-Y6NEE_IM_E 33933A(1).indd 21

2011-06-28 오후 5:48:50

Summary of Contents for MCU-Y6NEE

Page 1: ...2 E MCU 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 MCU Y6NEE_IM_E 33933A 2 indd 25 2011 07 15 오전 10 31 19 ...

Page 2: ...y precautions 3 Preparing the installation 5 Space requirements 7 Installing the unit 8 Refrigerant piping works 11 Wiring works 17 Commisioning 23 Contents MCU Y6NEE_IM_E 33933A 1 indd 2 2011 06 28 오후 5 48 12 ...

Page 3: ...out the safety precautions below before installing or fixing the unit Before welding the unit you must remove all the hazardous materials around the unit that may cause an explosion and a fire When refrigerant is in the product or the pipe before welding the unit you must remove the refrigerant If you weld the unit when there is refrigerant inside the increased pressure of refrigerant may explode ...

Page 4: ...e so that frost does not generate If the draining work is done incompletely property damage may occur due to a leakage Install the power cable and communication cable of MCU at least 1m away from the electric appliances and at least 2m away from the lightning rod However you may hear a noise 1 meter away from the unit depending on the condition of the electric wave Install MCU away from lighting a...

Page 5: ... Shape Name Insulation forpipe Insulation forbase Installationmanual Patternsheet Cabletie Shape Outerdiameter mm Minimumthickness mm Material ø6 35 0 7 C1220T O ø9 52 0 7 ø12 70 0 8 ø15 88 1 0 ø19 05 0 9 C1220T 1 2H or C1220T H ø22 23 0 9 ø25 40 1 0 ø28 58 1 1 ø31 75 1 1 ø38 10 1 35 ø44 45 1 6 ø50 80 2 0 Accessories Make sure to use C1220T 1 2H Semi hard material for pipes larger than Ø19 05mm In...

Page 6: ...to indoor unit Liquid pipe connected to indoor unit Side view of MCU OutdoorUnit RD HRXGA MCU MCU Y6NEE MCU Y4NEE MCU Y4NEE1 IndoorUnit AVXC AVXW AVXT AVXD ND200 220 280 MCUKit Model Description MCU Y6NEE Below 6 indoor units below 46 4kW MCU Y4NEE Below 4 indoor units below 46 4kW MCU Y4NEE1 Below 2 large capacity ducts below 46 4kW MCU Y6NEE_IM_E 33933A 1 indd 6 2011 06 28 오후 5 48 13 ...

Page 7: ...installed and the interior walls should have a high soundproof ability Bricks Concretes Cement The ceiling where MCU is installed should be coated with qualityTex that has a good soundproof function Minimize the size of the hole between the walls and the pipe connection After the installation block the gap to prevent noise from leaking Living area Living area Living area Bulkhead Living area Hallw...

Page 8: ...x Ceiling concrete MCU 1 5m or less 1 5m or less Pipe hanger Refrigerant pipe Do not install the MCU to close to the ceilingTex minimum 50mm 0 25mormore MCU 400mm or more 700mm or more 400mm or more 500mm or more 1 MCU specification Model MCU Y6NEE MCU Y4NEE MCU Y4NEE1 The exterior of MCU Number of connectable indoor units Up to 6 units Up to 4 units Up to 2 units Only for large capacity duct 20 0...

Page 9: ...s depending on the ceiling type Ceiling support 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 ...

Page 10: ...talling MCU use the pattern sheet for installation that is provided with the product When brazing the high low pressure gas pipe protect the product with the flame proof sheet Protect with wet towel when brazing 6 How to connetY connector In case of connecting one indoor withY Connector to MCU Y Connector must be connected in series Good Example of connection No Good Example of connection Indoor 1...

Page 11: ...iping length Outdoor Outdoor unit Piping Equivalent piping 200m below 220m below Using MCU only a b c d e f g 200 m 220m Equivalent pipe length Y joint 0 5m Header 1m MCU 1m UsingY joint and MCU a g m 200 m 220 m Total piping 1000m below Using MCU only a b c d e f g 1000 m UsingY joint and MCU a b c d e f g p h i j k m n 1000 m Piping 10 m below r 10 s 10 t 10 m Equivalent piping 13 m below r 13 s...

Page 12: ...it s capacity Pipesize O D mm Liquid Gas Highgas 15 0kWandbelow Ø9 52 Ø15 88 Ø15 88 Over15 0 23 2 kWandbelow Ø19 05 Over23 2 29 0 kWandbelow Ø22 23 Ø19 05 Over29 0 40 6 kWandbelow Ø12 70 Ø25 40 Ø22 23 Over40 6 46 4 kWandbelow Ø28 58 Over46 4 69 6 kWandbelow Ø15 88 Ø25 40 Over69 6 98 6kWandbelow Ø19 05 Ø31 75 Ø28 58 Over98 6 139 2kWandbelow Ø38 10 Ø31 75 Over139 2kW Ø22 23 Ø44 45 Ø38 10 Firstbranch...

Page 13: ...P 14HP 16HP 18HP 20HP Standard 5 0 5 0 5 0 7 0 7 0 8 5 8 5 Charge the additional refrigerant according to the indoor unit capacity The amount of the additional refrigerant charging for each indoor unit capacity 0 046kg kW The method to calculate the total amount of the refrigerant The amount of the refrigerant according to the pipe size and length ⓐ The amount of additional refrigerant charging fo...

Page 14: ...Pipe pinch Shorter than one month Taping Inside exposure Taping Brazing part Nitrogen gas 1 4 copper pipe Stop valve Taping Pressure regulator Flowmeter Insulation cover pipe Indoor unit Be sure to overlap the insulation Insulation pipe Method and cautions on refrigerant pipe insulation Make sure to check for gas leakage before completing the installation hose and pipe insulation and insulate hose...

Page 15: ...ndMCUorwithoutEEVkitandMCU 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 insulator 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 thicker insulation Gas pipe Liquid pipe Insul...

Page 16: ...t may cause water flow back to the unit 1 The drain pipe should be installed within 300mm to 550mm from the flexible hose and then lift down 20mm or more 2 Install horizontal drainpipe with a slope of 1 100 or more and fix it by hanger space of 1 0 1 5m 3 Install the air vent in the horizontal drainpipe to prevent water flow back to the indoor unit 4 The flexible hose should not be installed upwar...

Page 17: ...ore than 10 install the thicker wire Installing with 2 different sort wire T Coef 1 55 T Lk Distance among each indoor unit m Ak Power cable specification mm2 ik Running current of each unit A Coef 35 6 Lk ik 10 of input voltage V 1000 Ak n k 1 10 A Indoor unit10 20 m 10 m 0 m 9 A 1 A 100 m MCCB Indoor unit2 Indoor unit1 ELB ExampleofInstallation Total power cable length L 100 m Running current of...

Page 18: ... 0 45 AVXCM 028 036 056 071 0 50 0 50 0 52 0 55 AVXWV 022 028 036 056 071 0 13 0 18 0 19 0 30 0 30 AVXDS A 022 028 036 040 045 056 071 090 112 128 140 0 40 0 40 0 40 0 60 0 60 0 60 0 60 1 00 1 00 1 20 1 20 AVXDS P 071 090 112 128 140 0 96 0 96 0 96 1 13 1 24 AVXDU 056 071 090 112 128 140 1 10 1 25 1 30 1 17 1 62 1 86 ND HH 200 220 280 3 30 3 80 5 90 MCU Y6NEE_IM_E 33933A 1 indd 18 2011 06 28 오후 5 ...

Page 19: ...40V Supply separately Case 2 Indoor Unit Indoor Unit Outdoor Unit ELB MCCB 220 240V Supply separately Silver solder Norminal dimensionsfor cable mm2 Norminal dimensionsfor screw mm B D d1 E F L d2 t Standard dimension mm Allowance mm Standard dimension mm Allowance mm Standard dimension mm Allowance mm Min Min Max Standard dimension mm Allowance mm Min 1 5 4 6 6 0 2 3 4 0 3 0 2 1 7 0 2 4 1 6 16 4 ...

Page 20: ...tch for indoor unit ADDRESS Setting MCU address Set the rotary switch of the indoor unit ADDRESS on the MCU PCB same as the ADDRESS of connected indoor unit When installing more than 2 MCU set each rotary switch for MCU ADDRESS properly Indoor Unit Indoor Unit MCU PCB MCU PCB MCU PCB Y connector installation Setting the number of Indoor Unit Setting the number of MCU Indoor Unit ADDRESS Outdoor Un...

Page 21: ...he installation manual of the HR outdoor unit Howtosetup Set the rotary switch located at outdoor unit PCB to match the number of connected indoor units 8 Set the rotary switch located at outdoor unit PCB to match the number of connected MCU 2 When installing more than 2 MCUs set each rotary switch of MCU differently Set rotary switch located at MCU PCB to match indoor unit address Set the DIP swi...

Page 22: ...r solenoid valve C_C C_H C 14 On Off for solenoid valve D_C D_H D 15 On Off for solenoid valve E_C E_H E 16 On Off for solenoid valve F_C F_H F 17 On Off for liquid by pass solenoid valve G Blank 0 N Ex On 0 F F Ex Off 18 Version 8 A 2 0 Ex October 20 2008 8A 20 19 End of K1 display K2 Pushedtime DisplayContents Displaysegment Remarks 1 2 3 4 1 Indoor unit main address for matching with port A A 0...

Page 23: ...nual of the HR outdoor unit K4 Switch ElectronicValve Manual Control According to the push time of K4 Switch A_C A_H F_C F_H Liquid bypass solenoid valve opens in order In ElectronicValve Manual Control mode valve operates by K4 Push time irrespective of indoor operation mode In ElectronicValve Manual Control mode push K1 Switch makes DATA DISPLAY MODE to start and valves will operate following in...

Page 24: ...MCU Y6NEE_IM_E 33933A 1 indd 24 2011 06 28 오후 5 48 50 ...

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