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DC Inverter Multi VRF System   

35 

Content 

  symbol 

Division  
symbol 

Debugging   C 

Communication 

malfunction 

between IDU 

and the 

receiving lamp 

plate 

Overflow 

distribution 

of IP 

address 

 

 

 

Status  

Long-distance 

emergency 

stop 

Emergency 

stop of 

operation 

Limit 

operation 

 

 

 

Summary of Contents for V5BV-36WMAK

Page 1: ...s Manual Heat Pump Applicable Models V5BV 36WMAK V5BV 48WMAK V5BV 60WMAK z Please read this owner s manual carefully before operation and retain it for future reference z Specifications illustrations...

Page 2: ...technician as soon as possible 1 Nameplate model cooling capacity product code manufacture date 2 Malfunction status detail description of conditions before and after malfunction occurs 6 All units ha...

Page 3: ...18 4 5 Vacuum Pumping Refrigerant Adding 19 4 6 Electric Wiring 21 5 Check Items after Installation and Test Operation 25 5 1 Check Items after Installation 25 5 2 Test operation and debugging 25 6 Co...

Page 4: ...turned off before you remove the refrigerant piping This may cause abnormal pressure in the refrigerant cycle that leads to compressor damage or personal injury 11 When installing the air conditioner...

Page 5: ...in one night This is may cause damage to the compressor 32 Volatile liquid like paint thinner or gasoline will damage the appearance of air conditioner Please use soft dry cloth or damp cloth with mi...

Page 6: ...Multi VRF System 3 2 Product Introduction This equipment uses inverter compressor technology This allows the compressor to modulate at a range of 15 100 2 1 Names of Main Parts V5BV 36WMAK V5BV 48WMAK...

Page 7: ...d be within 50 135 of that of the outdoor unit Model Min sets of connectable IDUs Max sets of connectable IDUS V5BV 36WMAK 2 7 V5BV 48WMAK 2 8 V5BV 60WMAK 2 13 Outdoor DC Inverter Multi VRF System uni...

Page 8: ...for Outdoor Unit No Name Appearance Qty Remark 1 User Manual 1 2 Wiring match with resistance 1 Must be connected to the last IDU of communication connection 3 Corrugated pipe 1 V5BV 36WMAK V5BV 48WM...

Page 9: ...t should be mounted securely to withstand high wind potential for your location 1 If possible do not install the unit where it will be exposed to direct sunlight If necessary install a blind that does...

Page 10: ...ing Work Requirements Refer to the table below for piping work requirements R410A Refrigerant System Outer diameter mm inch Wall thickness mm inch 6 35 1 4 0 8 1 32 9 52 3 8 0 8 1 32 12 7 1 2 0 8 1 32...

Page 11: ...only Please refer to actual products 4 1 Dimension of Outdoor Unit and Mounting Hole Unit Outline and Installation Dimension Fig 3 Unit mm inch Model A B C D E V5BV 36WMAK V5BV 48WMAK 900 35 3 8 340...

Page 12: ...DC Inverter Multi VRF System 9 4 2 Connection Pipe 4 2 1 Schematic Diagram of Piping Connection Fig 4...

Page 13: ...0 5m 1 1 2 feet Fig 5 Allowable Length and Height Difference of Connection Pipe Piping parameters of V5BV 36WMAK V5BV 48WMAK V5BV 60WMAK Allowable value Fitting pipe m feet Total length of fitting pip...

Page 14: ...ed by the dimension of outdoor connection pipe Fig 6 Dimension of outdoor connection pipe Basic module Pipe dimension Gas pipe mm inch Liquid pipe mm inch V5BV 36WMAK 15 9 5 8 9 52 3 8 V5BV 48WMAK 15...

Page 15: ...FQ04 4 2 5 Dimension of Pipe between Indoor Branches Select pipe between indoor branches according to the capacity of downstream indoor units if the capacity exceeds that of the outdoor unit capacity...

Page 16: ...ll be enlarged 4 3 Installation of Connection Pipe 1 Observe the following during pipe connection Connection pipe should be as short as possible Height difference between indoor and outdoor units shou...

Page 17: ...t or stretched it will weaken making it more likely to break Do not bend or stretch the bend for over 3 times 4 For best results cut insulation before bending as shown in Fig 12 Bend pipe as needed an...

Page 18: ...n pipe do not pull on the pipe or pipe joints in case the capillary tube or other tubes have cracks and cause leakage Fig 13 Fig 14 Pipe Diameter Tightening Torque 6mm 1 4inch 15 30N m 11 22ft lb 9 5m...

Page 19: ...ipe 1 and straight pipe 2 Install connection pipe 1 and connection pipe 2 to the corresponding position and then seal the apertures with welding rod First weld the liquid side connection pipe and then...

Page 20: ...120 248 or even higher temperature The foam attached to the branch is not considered as insulating material 4 3 6 Thermal Insulation for Pipeline 1 For multi VRF system every copper pipe should be la...

Page 21: ...2 Thermal insulating material of branches should be the same as that of the pipeline The attached foam of branches alone cannot be substituted for insulating material 4 3 7 Support and Protection of...

Page 22: ...ection pipe from the outdoor valve as shown below Fig 22 4 5 2 Adding Refrigerant 1 Refrigerant quantity of outdoor unit before delivery Model V5BV 36WMAK V5BV 48WMAK V5BV 60WMAK Refrigerant Qty kg lb...

Page 23: ...ue to pressure increase of the pipe set the unit in cooling startup and fill refrigerant from the low pressure check valve of the outdoor unit 3 Calculation example Fig 23 IDU No IDU IDU IDU IDU Model...

Page 24: ...al appliance so it must be securely grounded 7 The yellow green wire inside the unit is a ground wire Do not cut it off or secure it with tapping screws otherwise it will lead to electric shock 8 Powe...

Page 25: ...k check that power is turned off 2 Match the terminal block numbers and connection cord colors with those of the indoor unit Improper wiring may cause damage to the electric parts 3 Connect the connec...

Page 26: ...on wire Separate power supply for IDU and ODU Fig 27 Connection of power cord and communication wire for IDU and ODU 2 The wiring diagram for power cord and communication wire of outdoor unit Fig 27 T...

Page 27: ...0V 60Hz 70 70 42 1 Selection of circuit breaker and power cord in the above table is based upon unit s maximum power maximum current 2 Specification of power cord is based on the working condition whe...

Page 28: ...ed or not The refrigerant charging amount is not accurate Metal pieces on compressor feet are removed or not Compressor may get damaged 5 2 Test operation and debugging 1 After finishing the first ins...

Page 29: ...IDU db On 02 On OC On Allocation is finished 2s later next step starts 03_ Confirm the quantity of ODU db On 03 On 01 Blink System is confirming 1s later next step starts db On 03 On OC On System fini...

Page 30: ...it is started without 8 hours of preheat time db On 08 On OC On Compressor has been preheated for 8 hours 2s later next step starts 09_ Refrigerant judgments before startup db On 09 On U4 On System l...

Page 31: ...Compressor discharge temp When compressor starts discharge temp in cool mode is within 70 105 158 221 and at least 10 18 higher than the high pressure saturation temp As for temp in heat mode it is wi...

Page 32: ...mp for a same IDU in cool mode the inlet temp will be 1 7 2 13 lower than the outlet temp and 4 9 7 16 higher than the low pressure value For a same IDU in heat mode the inlet temp will be 10 20 18 36...

Page 33: ...r 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 sources in the room Reduce heat sources Filter is bl...

Page 34: ...r e sensor Malfunction of low pressure sensor Malfunction of discharge temperature sensor of compressor 1 J Over current protection of compressor 1 b Malfunction of outdoor ambient temperature sensor...

Page 35: ...ymbol 0 1 2 3 4 5 Status A Unit waiting for debugging Inquiry of compressor operation parameters Defrosting Oil return Online test n SE operation setting of system Setting of defrosting cycle K1 Setti...

Page 36: ...d separator Malfunction of outlet temp sensor of gas liquid separator Malfunction of heat exchanger temperature sensor Clock of system is abnormal P Drive IPM module protection of compressor Malfuncti...

Page 37: ...rter compressor AC current protection of inverter compressor H Drive current detection circuit malfunction of fan Low voltage protection of fan s drive DC bus bar Phase lacking of inverter fan Drive c...

Page 38: ...tent symbol Division symbol U b d n y Debugging C Communication malfunction between IDU and the receiving lamp plate Overflow distribution of IP address Status A Long distance emergency stop Emergency...

Page 39: ...rict requirements for noise It includes two modes smart night silent mode compulsory silent mode When unit enters function setting main board of outdoor unit will display as shown below LED1 LED2 LED3...

Page 40: ...1 LED2 LED3 Function code Display Current progress mode Display Current status Display A6 On nC On nC On A6 On nH On nH On A6 On nA On nA On A6 On nF On nF On This setting will be memorized by master...

Page 41: ...efaults and don t need project debugging then hold SW3 and SW8 on the main board of ODU for more than 10s then all LEDs will blink for 5s All settings are cleared out including the IP addresses and pr...

Page 42: ...nnection is reliable 3 Check whether batteries in the remote controller need replacing 4 Check whether air filter is properly installed 5 If unit has had power off for a long period of time it should...

Page 43: ...elp Warranty must be based on the following conditions 1 Product s initial startup must be performed by professional technicians 2 Only approved spare parts are used 3 All instructions of unit operati...

Page 44: ...Specifications illustrations subject to change without notice or incurring obligations O Fallon MO 12 15 Nortek Global HVAC LLC 2015 All Rights Reserved 546E 1215...

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