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DC Inverter Multi VRF System User Manual

If the ODU is totally surrounded by walls, please refer to the following figures for space

dimension:

≥

350mm

≥

350mm

≥

200mm

≥

2000mm

Shockproof

material

≥

200mm

≥

200mm

≥

2000mm

Wall

Fig.2

3.3 Piping Work Requirements

Refer to the table below for piping work requirements:

R410A

Refrigerant System

Outer diameter (mm/inch)

Wall thickness(mm)

Φ6.35(1/4)

≥

0.8

Φ9.52(3/8)

≥

0.8

Φ12.70(1/2)

≥

0.8

Φ15.9(5/8)

≥

1.0

Φ19.05(3/4)

≥

1.0

Содержание CHV-5S120NK

Страница 1: ...hank you for choosing Air Conditioners please read this owner s manual carefully before operation and retain it for future reference C H reserves the right to interpret this manual which will be subject to any change due to product improvement without further notice Air Conditioners Owner s Manual ...

Страница 2: ...at this manual is kept by direct operators and maintainers 5 In case of malfunction please examine the following items and contact our authorized service centers as soon as possible Nameplate model cooling capacity product code ex factory date Malfunction status detail description of conditions before and after malfunction occurs 6 All units have been strictly tested and proved to be qualified bef...

Страница 3: ...essor Feet 15 4 6 Vacuum Pumping Refrigerant Adding 15 4 7 Electric Wiring 17 5 Check Items after Installation and Test Operation 18 5 1 Check Items after Installation 18 5 2 Test operation and debugging 18 6 Common Malfunctions and Troubleshooting 22 7 Error Indication 23 8 Function Setting of Outdoor Unit 25 8 1 ODU Quiet Function 25 8 2 Cool Heat Function 26 8 3 Forced Defrosting 27 8 4 Restore...

Страница 4: ...on the nameplate And also take care of the power safety Installation should be conducted by dealer or qualified personnel Please do not attempt to install the unit by yourself Improper handling may result in water leakage electric shock or fire disaster etc Be sure to use the exclusive accessory and part to prevent the water leakage electric shock and fire accidents Before using the unit please ch...

Страница 5: ...nt or gas will damage the unit appearance Only use soft cloth with a little neutral detergent to clean the outer casing of unit Open the door and window and keep good ventilation in the room to avoid oxygen deficit when the gas oil supplied heating equipment is used Turn off the unit after it runs at least five minutes otherwise it will influence oil return of the compressor Do not operate this un...

Страница 6: ...160NK Air Outlet Air Outlet Fig 1 NO Name Fan Motor Fan blade Electric box assembly Gas pipe valve Liquid pipe valve 2 2 Combinations of Indoor and Outdoor Units 1 See below the number of indoor units that can be connected to the outdoor unit 2 The total capacity of indoor units should be within 50 135 of that of the outdoor unit Model Min sets of connectable IDUs Max sets of connectable ODUs CHV ...

Страница 7: ...resistance 1 Must be connected to the last IDU of communication connection 3 Corrugated pipe 1 3 2 Installation Site Forbidden Items It indicates that improper operation might lead to human casualty or sever injury Items need to be followed It indicates that improper operation might lead to personal injury or property damage Install the unit at a place where is adequate to withstand the weight of ...

Страница 8: ... space dimension 350mm 350mm 200mm 2000mm Shockproof material 200mm 200mm 2000mm Wall Wall Wall Wall Fig 2 3 3 Piping Work Requirements Refer to the table below for piping work requirements R410A Refrigerant System Outer diameter mm inch Wall thickness mm Φ6 35 1 4 0 8 Φ9 52 3 8 0 8 Φ12 70 1 2 0 8 Φ15 9 5 8 1 0 Φ19 05 3 4 1 0 ...

Страница 9: ...hics here are only for reference Please refer to actual products Unspecified dimensions are all in mm 4 1 Dimension of Outdoor Unit and Mounting Hole Unit Outline and Installation Dimension mm A D B C E Fig 3 Mode A B C D E CHV 5S120NK CHV 5S140NK CHV 5S160NK 900 340 1345 572 378 ...

Страница 10: ...ipe between ODU and the first indoor branch Outdoor connection pipe Branchs of IDUs Connection pipe between indoor branch and IDUs Connection pipe between indoor branch and IDUs Connection pipe between indoor branch and IDUs IDU 1 IDU 2 IDU 3 Connection pipe of indoor branchs Connection pipe of indoor branchs Connection pipe of indoor branchs Fig 4 ...

Страница 11: ...eader equals to 1 0m L1 L2 L3 Outdoor Indoor Intdoor Intdoor Intdoor st Fig 5 Allowable Length and Height Difference of Connection Pipe Piping parameters of CHV 5S120NK CHV 5S140NK and CHV 5S160NK Allowable value Fitting pipe Total length actual length of fitting pipe 300m L1 L2 L3 a b c d Length of farthest fitting pipe m Actual length 120m L1 L2 L3 d Equivalent length 150m From the 1st branch to...

Страница 12: ...Gas pipe mm Liquid pipe mm CHV 5S120NK Φ15 9 Φ9 52 Flared joint CHV 5S140NK Φ15 9 Φ9 52 CHV 5S160NK Φ19 05 Φ9 52 4 2 4 Selection of Indoor Branches Select indoor branches according to the total capacity of downstream indoor units Outdoor Indoor Indoor branches Fig 7 R410A Refrigerant system Total capacity of downstream indoor units C kW Model Y type branch C 20 0 CH020N 4 2 5 Dimension of Pipe bet...

Страница 13: ...nd IDU Dimension of pipe between indoor branch and IDU should be consistent with the dimension of indoor pipe Outdoor Indoor Indoor branches Pipe between indoor branch and IDU Fig 9 Rated capacity of IDU C kW Gas pipe mm Liquid pipe mm C 2 8 Φ9 52 Φ6 35 2 8 C 5 0 Φ12 7 Φ6 35 5 0 C 14 0 Φ15 9 Φ9 52 14 0 C 16 0 Φ19 05 Φ9 52 16 0 C 28 0 Φ22 2 Φ9 52 Note If the distance between IDU and its nearest bra...

Страница 14: ...est positions of the vertical pipe 4 3 4 Making of the Oil Loop A R C Fig 10 Oil Loop To prevent pipeline damage during pipe bending please check the following table for the size of oil return bend A R C mm inch mm mm Φ19 05 3 4 34 105 4 4 Installation of the Connection Pipe 4 4 1 Precautions for the Installation of Connection Pipe 1 Conform to the following principles during pipe connection Conne...

Страница 15: ...posed When bending is done wrap the pipe with insulating layer and then secure it with adhesive tape 4 4 3 Indoor Pipe Connection 1 Remove pipe cover and pipe plug 2 Direct the flared part of copper pipe to the center of screwed joint Twist on the flared nut tightly by hand as in Fig 14 Make sure indoor pipe is correctly connected Improper location of the center will prevent flared nut from being ...

Страница 16: ...s pipe Liquid pipe Flared nut Fig 16 4 4 6 Installation of Y type Branch 1 Y type Branch Outdoor Field supplied Field supplied to other branches or IDUs type branch Inlet Outlet 1 Outlet 2 Fig 17 2 Y type branch has several pipe sections with different dimension which facilitates to match with various copper pipes Use pipe cutter to cut in the middle of the pipe section that is of proper dimension...

Страница 17: ...ear 120 or above foaming polyethylene bear 100 or above Joints of indoor and outdoor unit should be wrapped with insulating material and leave no gap between pipe and wall See Fig 19 Thermal insulating layer is required to be wrapped at this part Thermal insulating pipe No gap Fig 19 Thermal insulating material of branches should be the same as that of the pipeline The attached foam of branches ca...

Страница 18: ...g on compressor will shake abnormally and unit s operating life will be shortened 4 6 Vacuum Pumping Refrigerant Adding 4 6 1 Vacuum Pumping 1 Outdoor unit has been charged with refrigerant before delivery Field installed connection pipe needs to be charged with additional refrigerant 2 Confirm whether outdoor liquid and gas valves are closed 3 Use vacuum pump to withdraw the air inside indoor uni...

Страница 19: ...d pipe that is within 20m doesn t need to be added with refrigerant First confirm that there is no leakage from the system When compressor is not working charge additional R410a with specific amount to the unit through the filling opening of the liquid pipe valve of the outdoor unit If required amount cannot be quickly filled due to pressure increase of the pipe then set the unit in cooling startu...

Страница 20: ...e unit is a ground wire Do not cut it off or secure it with tapping screws otherwise it will lead to electric shock 3 Power supply must include secure grounding terminal Do not connect the ground wire to the following Water pipe Gas pipe Drain pipe Other places that are deemed as not secure by professional technicians 4 7 2 Wiring Diagram 1 Connection of power cord and communication wire Separate ...

Страница 21: ...e Power cord meets the required specification Unit may have malfunction or components may get damaged Is the air inlet outlet blocked Insufficient cooling heating capacity Length of refrigerant pipe and the charging amount of refrigerant are recorded or not The refrigerant charging amount is not accurate Binding pieces on compressor feet are removed or not Compressor may get damaged 5 2 Test opera...

Страница 22: ...ter next step starts 04_Confirm the quantity of IDU db On 04 On 01 80 Blink LED3 displays the quantity of indoor unit Confirm the number manually If the number is not consistent the display one cut off power of IDU and ODU and check whether communication wire of IDU is correctly connected After the check connect power and start debugging from progress 01 If the number is then correct press main bo...

Страница 23: ...main board s SW6 button and display shows db 09 OC Then check if the gas and liquid valves of ODU are completely open After confirmation press the SW6 button again Then compressor will start running for about 2min to inspect the status of valves db On 10 On OC On Valves status is normal Unit will display as in the left for 2s and then start next step 12_Confirm debugging startup db On 12 On AP Bli...

Страница 24: ...sure value is 15 8 6 Opening angle of thermal EXV PLS In cool mode the thermal electronic expansion valve remains 480PLS In heat mode the adjustable opening angle of EXV is 60 480PLS 7 Compressor s operating freq HZ Changes in 10Hz 80Hz 8 Compressor s operating current A When compressor works normally the current is no more than 18 4A 9 Compressor s IPM temp When ambient temp is below 35 IPM temp ...

Страница 25: ...t setting at remote controller or wired controller Door or window is open Close the door or window Direct sunshine Draw curtain or louver Too many people in the room Too many heat resources in the room Reduce heat resources Filter is blocked and dirty Clean the filter Note If problem cannot be solved after checking the above items please contact C H service center and describe the cases and models...

Страница 26: ...n of gas temperature sensor of sub cooler P malfunction of driving board of compressor uniform Driving board of compressor operates abnormally uniform Voltage protection of driving board power of compressor uniform Reset protection of driving module of compressor Drive PFC protection of compressor Over current protection of inverter compressor H Malfunction of driving board of fan uniform Driving ...

Страница 27: ...ing protection of inverter fan High voltage protection of fan s drive DC bus bar Debugging U Alarm because valve is abnormal Short circuit malfunction of IDU Malfunction of pipe line for ODU C Emergency status of compressor Emergency status of fan Rated capacity is too high Status A Heat pump function setting Quiet mode setting Vacuum pump mode IPLV test EU AA level EER test mode Heating n Inquiry...

Страница 28: ... be ready for function setting Default display of outdoor unit s main board is as below LED1 LED2 LED3 Function code Display Current progress Display Current status Display A7 Blink 00 Blink 00 Blink Then press SW1 button and SW2 button on the master unit to switch function codes of LED1 to select relevant functions Function setting includes outdoor silent mode setting A7 heating and cooling funct...

Страница 29: ...aster unit for 5min unit will exit and resume displaying the current status 8 2 Cool Heat Function This function can set operation modes and prevent mode collision that is caused by setting different modes for different indoor units It is especially suitable for hotels and other small business areas There are 3 levels for this setting Level A Mode Lock Control Upon entering this function setting m...

Страница 30: ... defrosting mode Once unit is under compulsory defrosting this mode can only be stopped when requirements for exit are met 8 4 Restore Factory Defaults 1 If you want to restore factory defaults hold SW8 button on the main board of ODU for more than 10s then all LEDs will blink for 3s Main board will cancel all setting including the IP addresses and project codes of IDU and ODU The mark for finishe...

Страница 31: ... Check whether outdoor unit is securely installed If there is any problem please contact C H authorized service center 9 4 Maintenance after Seasonal Use 1 Disconnect power of the entire system 2 Clean the air filter and outer case of indoor and outdoor units 3 Clean away the dust and obstacles on indoor and outdoor units 4 If outdoor unit has rust please apply some paint to it so as to prevent th...

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