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Mini

VRF

Cooling Only System

User Manual

and keep it for further reference.

VEC027N432U

VEC034N432U

VEC042N432U

VEC048N432U

VEC055N432U

VEC060N432U

Содержание VRF VEC027N432U

Страница 1: ...Mini VRF Cooling Only System User Manual and keep it for further reference VEC027N432U VEC034N432U VEC042N432U VEC048N432U VEC055N432U VEC060N432U...

Страница 2: ...perly select the model according to actual using environment otherwise it may impact the using convenience 4 This product has gone through strict inspection and operational test before leaving the fac...

Страница 3: ...turer 3 After verification the defect of product is directly caused by corrosive gas 4 After verification defects are due to improper operation during transportation of product 5 Operate repair mainta...

Страница 4: ...e 7 4 2 Connection Pipe 8 4 3 Installation of Connection Pipe 12 4 4 Disassembly of Compressor Feet 16 4 5 Vacuum Pumping Refrigerant Adding 16 4 6 Electric Wiring 18 5 Check Items after Installation...

Страница 5: ...ne Installation should be performed by distributor or qualified technicians Do not install the product by yourself Improper installation may result in water leakage electric shock or fire hazard Befor...

Страница 6: ...for at least 5 minutes Otherwise oil return of the compressor will be affected Children are not allowed to operate the air conditioner Do not operate the air conditioner with wet hands Please turn off...

Страница 7: ...without supervision Install units according to national wiring codes If the supply cord is damaged it must be replaced by the manufacturer or its service agent or a similarly qualified person in order...

Страница 8: ...del Min sets of connectable IDUs Max sets of connectable IDUs VEC027N432U 2 4 VEC034N432U 2 5 VEC042N432U 2 6 VEC048N432U 2 8 VEC055N432U 2 9 VEC060N432U 2 10 3 Can be connected to various indoor unit...

Страница 9: ...s to be followed Improper operation might lead to personal injury or property damage Select a location which is strong enough to hold unit s weight so that unit can stand still and erect The installat...

Страница 10: ...ping Work Requirements Refer to the table below for piping work requirements R410A Refrigerant System Outer diameter mm inch Wall thickness mm 6 35 1 4 0 8 9 52 3 8 0 8 12 70 1 2 0 8 15 9 5 8 1 0 19 0...

Страница 11: ...Multi VRF System 7 4 1 Dimension of Outdoor Unit and Mounting Hole Unit Outline and Installation Dimension mm Fig 4 1 1 Unit mm Model A B C D E VEC048N432U VEC055N432U VEC060N432U 900 340 1345 572 37...

Страница 12: ...branch joint is adopted to connect indoor and outdoor units Connecting method is shown in the figure below NOTE Equivalent length of one Y type branch is 0 5m Piping parameters of VEC027N432U VEC034N...

Страница 13: ...2U 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 bra...

Страница 14: ...sion of outdoor connection pipe Basic module Pipe dimension Gas pipe mm Liquid pipe mm VEC027N432U 15 9 9 52 VEC034N432U 15 9 9 52 VEC042N432U 15 9 9 52 VEC048N432U 15 9 9 52 VEC055N432U 19 05 9 52 VE...

Страница 15: ...indoor branches according to the capacity of downstream indoor units if the capacity exceeds that of the outdoor unit capacity of outdoor unit prevails Fig 4 2 5 1 Total capacity of downstream indoor...

Страница 16: ...nnection pipe between indoor and outdoor units Please strictly follow the requirements for welding process Rosin joint or pin hole is not allowed 3 Radius of bending parts should be over 200mm Note th...

Страница 17: ...nut is twisted forcibly 3 Use torque wrench to twist on the flared nut tightly until the wrench gives out a click sound Hold the wrench and make it at right angle to the pipe as in Fig 4 3 4 2 4 Use s...

Страница 18: ...front right or rear side Fig 4 3 5 1 Fig 4 3 5 2 4 3 6 Installation of Y type Branch 1 Y type Branch Fig 4 3 6 1 2 Y type branch has several pipe sections with different dimension which facilitates t...

Страница 19: ...shall be able bear the pipe temperature For heat pump unit liquid pipe should bear 70 C or above and gas pipe should bear 120 C or above For cooling only unit both liquid pipe and gas pipe should bear...

Страница 20: ...are fitted to outdoor unit s compressor feet before unit leaves factory See Fig 4 4 1 Fig 4 4 1 When installing the unit metal pieces for transportation must be removed Then fasten the binding nuts a...

Страница 21: ...led liquid pipe Record the amount of additional refrigerant for convenience of after sales service 2 Calculation of the amount of additional refrigerant Calculation method of the quantity of additiona...

Страница 22: ...4 11 0 022 4 2 0 3 2 084kg 4 6 Electric Wiring 4 6 1 Notices for Wiring 1 Install units according to national wiring codes 2 Use air conditioner specialized power supply and make sure that it is consi...

Страница 23: ...ts 1 Air conditioner belongs to class I electrical appliance so it must be securely grounded 2 The yellow green wire inside the unit is a ground wire Do not cut it off or secure it with tapping screws...

Страница 24: ...ker is based on the working condition where ambient temperature of circuit breaker is 40 C If working condition changes please adjust the specification according to national standard 4 6 3 Engineering...

Страница 25: ...rectly Unit may have malfunction or components may get damaged Unit is securely grounded or not Electrical leakage Power cord meets the required specification Unit may have malfunction or components m...

Страница 26: ...normally preheated If yes start test operation Otherwise compressor might be damaged 5 2 2 Test Operation and Debugging Description of test operation procedures and main board display of ODU Descripti...

Страница 27: ...des 06 the other blinking will display the related error code After errors are eliminated system will start next step automatically If power is off during troubleshooting then restart debugging from p...

Страница 28: ...status of valves 10 oC Display circularly Valves status is normal Unit will display as in the left for 2s and then start next step 12_ Confirm debugging startup 12 AP Display circularly Ready for uni...

Страница 29: ...essure value is 15 8 C 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 40 480PLS 7 Compressor...

Страница 30: ...Connect the power Remote controller s power is not enough Replace new battery Remote controller is out of the control range Control range is within 8m Unit runs but stops immediately Air inlet or air...

Страница 31: ...of error indication combine division symbol and content symbol to check the corresponding error Indoor Error Code Content Error Code Content L0 Malfunction of IDU uniform d1 Indoor PCB is poor L1 Pro...

Страница 32: ...uniform P3 Reset protection of driving module of compressor H3 Reset protection of driving module of fan P4 Drive PFC protection of compressor H4 Drive PFC protection of fan P5 Over current protectio...

Страница 33: ...r Code Content Error Code Content A0 Unit waiting for debugging AP Debugging confirmation when starting up the unit A1 Inquiry of compressor operation parameters AU Long distance emergency stop A2 Ref...

Страница 34: ...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 the rust fr...

Страница 35: ......

Страница 36: ...9 N 7 2 1 2 C 2 0 0 F 3 3 2 0 0 1 333 2...

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