INSTALLATION MANUAL
VRF
ENGLSI
H
Thanks for choossing our product.
Please, read carefully this manual
before using the product
V4+R
| x2 | x3 | x4
GIA2528WD2RN1TC | GIA28010WD2RN1TC | GIA33512WD2RN1TC
GIA40014WD2RN1TC | GIA45016WD2RN1TC
Page 1: ...N MANUAL VRF ENGLSIH Thanks for choossing our product Please read carefully this manual before using the product V4 R x2 x3 x4 GIA2528WD2RN1TC GIA28010WD2RN1TC GIA33512WD2RN1TC GIA40014WD2RN1TC GIA450...
Page 2: ...0 2 2 Installation of Outdoor Unit 70 2 3 Installation of MS equipment 76 3 Refrigerant Pipe Engineering 77 3 1 Refrigerant Pipe Processing 77 3 2 Air Tight Test 88 3 3 Vacuum Drying 90 3 4 Recharge o...
Page 3: ...n Drop height Indoor unit outdoor unit drop height Outdoor unit up 50m Outdoor unit down 50m Indoor unit to indoor unit drop height 15m Note 1 All branches must be purchased from Midea otherwise syste...
Page 4: ...main pipe L1 E g The main pipe L1 in the above drawing Please refer to the following table Model The Max equivalent length of tubing 90m The Max equivalent length of tubing 90m Suction Gas pipe High...
Page 5: ...22 2 12 7 FQZHN 03S 460 A 660 28 6 22 2 15 9 FQZHN 03S 660 A 920 34 9 28 6 19 1 FQZHN 04S 920 A 1100 41 3 31 8 19 1 FQZHN 04S 1 1 2 3 Selection of the indoor auxiliary pipe and auxiliary branch E g T...
Page 6: ...pipe indoor branch Total capacity of indoor units 100W Range Pipe dimension Suction Discharge Liquid Branch L2 B N1 N2 N3 N4 310 230 A 330 22 2 19 1 12 7 FQZHN 02S L3 N1 N2 172 166 A 230 22 2 19 1 9 5...
Page 7: ...of indoor units under 1 MS Main Pipe dimension gas Liquid Range Branch Pipe dimension gas Liquid MS 1 15 9 9 5 A 45 12 7 6 4 FQZHN 01C A 56 15 9 9 5 2 15 9 9 5 A 45 12 7 6 4 FQZHN 01C A 56 15 9 9 5 3...
Page 8: ...31 8 OD 28 6 ID 28 6 ID 19 1 ID 22 2 OD 28 6 ID 19 1 ID 22 2 OD 28 6 ID 15 9 0D 34 9 ID 34 9 ID 38 1 ID 34 9 ID 31 8 ID 31 8 0D 31 8 ID 25 4 0D 31 8 ID 31 8 ID 25 4 ID 31 8 0D 34 9 ID 31 8 ID 38 1 ID...
Page 9: ...5 ID 9 5 Insufficient refrigerant Over heated running Compressor fault Filth blockage of refrigerant pipe Leakage of refrigerant pipe Product of the chemical reaction between ice or water of throttli...
Page 10: ...tdoor unit Avoid short circuit ventilation and ensure sufficient maintenance space Installing outdoor unit Avoid short circuit ventilation and ensure sufficient maintenance space Air tightness test Ch...
Page 11: ...ply of one system into the same circuit 1 3 5 6 It is suggested to use 3 core shielded wire as signal wire between indoor and outdoor units multi core wire is unavailable Pay attention to the consiste...
Page 12: ...est following operation parameters of the system including indoor units and outdoor units parameters 1 4 Installation Preparation 1 4 1 Installation tools and instruments All the necessary tools shoul...
Page 13: ...ng thus to ensure smooth construction operation 1 4 4 Training of installation team Establish sound training mechanisms Service engineers are required to train installation team managers work supervis...
Page 14: ...f purchase for more information Excessive refrigerant in a closed ambient can lead to oxygen deficiency 4 Use the attached accessories parts and specified parts for installation otherwise it will caus...
Page 15: ...e to install an earth leakage breaker may result in electric shocks 3 Connect the outdoor unit wires and then connect the indoor unit wires You are not allowed to connect the air conditioner with the...
Page 16: ...MCAC VTSM 2011 09 Installation Unit Installation 77 regulation of National Electric Standard Remark Failure to observe a caution may result in injury or damage to the equipment...
Page 17: ...keep is available keep a large enough maintenance hole typically 400x400mm 7 Avoid short circuit ventilation Purpose Ensure sufficient heat exchange of indoor unit and good air conditioning effect Ris...
Page 18: ...emark The key points to make basement 1 The master unit s basement must be made on the solid concrete ground Refer to the structure diagram to make concrete basement in detail or make after field meas...
Page 19: ...wer than the surrounding obstacle Refer to the layout used when the outdoor unit is higher than the surrounding obstacle However to avoid cross connection of the outdoor hot air from affecting the hea...
Page 20: ...e installed to prevent snow See the figure below defective facilities may cause malfunction Please lift the bracket higher and install snow shed at the air inlet and air outlet 2 2 7 Mount the air def...
Page 21: ...tallation 2 2 7 1 Installation of GIA 2528WD1RN1TB and GIA 28010WD1RN1TB Schedule 1 Schedule 2 Note Before install the air deflector please ensuring the mesh enclosure has been took off otherwise the...
Page 22: ...he outdoor unit with the highest cooling capacity shall be set to master unit while others shall be set to slave units The following takes a system with outdoor units of 26HP 10HP 8HP 8HP as an exampl...
Page 23: ...will be modes conflict 4 Please install the MS at the places where do not have highly request for noise such as the corridor or washroom and so on 5 The MS must be installed horizontally 6 There shall...
Page 24: ...urpose of cleansing copper pipe Remove the lube industrial oil used during the processing of the copper pipe attached to the inner wall of the copper pipe The ingredients of such lube are different fr...
Page 25: ...n and shrinkage of the pipe it is usually required to conduct local fixing beside the wall through holes of the branch pipe and end pipe 3 1 1 4 Requirements for installing branch pipe subassembly Whe...
Page 26: ...copper pipe 3 1 2 1 Pipe carriage and storage 1 Avoid the pipe from bending or deforming during the carriage 2 Seal the openings of the copper pipe with end cover or adhesive tape during the storage...
Page 27: ...to enter into the pipe 2 When the copper pipe goes outside the wall ensure that no rain water can enter the pipe particularly when the pipe is placed upright 3 Before completing the pipe connection s...
Page 28: ...so as to avoid scratch at the opening to be sealed during flaring 2 Operation procedure 1 Use a scraper to remove the inner spurs When doing so keep the opening of the pipe downwards to avoid copper c...
Page 29: ...anner 5 Before conducting opening bell mouthed install pipe onto the flaring nut 6 Use proper torque to tighten the flaring nut Pipe Diameter Torque Legend kgf cm N cm 1 4 6 35 144 176 1420 1720 3 8 9...
Page 30: ...save material no joint is needed 2 Caution 1 When bending a copper pipe ensure that there is no twinkle or deformation on the inner side of the pipe 2 When using a spring bender ensure that the bender...
Page 31: ...oxides will block the refrigerant system which will lead to all kinds of malfunctions such as burn out the compressor poor cooling efficiency To avoid these problems charge nitrogen continuously into...
Page 32: ...ressure of the charged nitrogen to be about 0 2kg cm 4 Select a proper position for charging nitrogen 5 Ensure that the nitrogen passes through the welding spots 6 If the pipeline between the position...
Page 33: ...f the remaining solid impurity and moisture in pipeline could not be eliminated effectively serious malfunctions shall happen such as ice blockage dirt blockage and compressor being jammed 3 1 5 2 Pro...
Page 34: ...n see vacuum drying of GIATSU refrigerant piping in detail 3 Shut down nitrogen main valve 4 Repeat above operations to the connected copper pipe of all indoor units 5 Sequence of flushing when pipeli...
Page 35: ...ide piping Note It must not be allowed to charge nitrogen through ball valve after connecting low pressure side piping with ball valve that is pressurizing ball valve directly is not allowed otherwise...
Page 36: ...1 kgf cm2 You can find out whether the pressure drops or not by comparing the modification value with pressurization value 3 General ways for searching leak source Conduct detection through three phas...
Page 37: ...f vacuum pump is over 0 02mmHg Highlights of R410A system After the vacuum process of R410A refrigerant circulation is over vacuum pump stops running and the lubricant in vacuum pump shall flow back t...
Page 38: ...the effect of vacuum drying but this method could not achieve drying thoroughly when there is too much moisture Therefore special attention shall be drawn to prevent the entering of water and the form...
Page 39: ...nnector 4 The charging method is different Recharge into the outdoor unit with liquid phase 5 The different leak detector 3 4 2 Calculating the recharged refrigerant volume Calculate the recharged ref...
Page 40: ...ages of incorrect connection 1 Interfere drainage 2 The side of branch pipe with large quantity of fluid volume will flow to the side with small quantity thus leading to the water backwards of branch...
Page 41: ...plate of indoor unit and powering on 4 All joints shall be firm particularly PVC pipe 5 The drainage pipe is not allowed to turn to adverse slope horizontal and bending 6 Dimension of drainage pipe sh...
Page 42: ...eter of piping reference value mm Inner diameter of piping mm Permitted displacement l h Remark Slope 1 50 Slope 1 100 PVC25 19 20 39 27 Reference value could not used for confluence pipe PVC32 27 25...
Page 43: ...mmediately place down inclined otherwise it will cause error operation of switch at water pump The connecting method is shown as follows Note Air outlet could not be installed on the lifting part othe...
Page 44: ...l 3 minutes later If drainage pipe have not been distributed properly over back flow water shall cause the flashing of alarm indicator at remote controlled receiving board and even water shall run ove...
Page 45: ...materials Inner insulation material should be no burning or burning retardant with rating B1 and no harm to people s body 5 The permitting deviation to outer diameter or long edge of duct when no more...
Page 46: ...e no more than 4m when diameter or edge length is less than or equal to 400mm while the gap should be no more than 3m when diameter or edge length is more than 400mm 2 If duct is installed vertically...
Page 47: ...re it is necessary to carry out insulation otherwise it shall reduce the performance of unit and burn compressor 2 Gas pipe temperature is very low during cooling If insulation is not enough it shall...
Page 48: ...at last paste joint with glue Highlights of insulation repairing 1 Repaired length of insulation insulation tube with filled gap shall be 5 10cm longer than the length of gap under natural status 2 Sl...
Page 49: ...bracket of duct should be set up to the outside of insulation layer and insert bed timber between bracket and duct 5 Thickness of insulation layer 1 As for the inlet and outlet duct installed in room...
Page 50: ...requirements below 1 Voltage lose of wire shall meet the requirement of terminal voltage for normal operation and startup 2 The wiring current carrying capacity determined by installed method and envi...
Page 51: ...hts of control line RS 485 communication 1 The control line should be shielded wire Using other wiring shall create signal interference thus leading to error operation 2 Single end to shield net of sh...
Page 52: ...mpressor 6 Turn on gas pipe stop valve liquid pipe stop valve oil balance valve and gas balance valve totally If the above valves do not be turned on totally the unit should be damaged 7 Check whether...
Page 53: ...d confirm that operation of single unit is normal through trial operation After confirm it is normal conduct operation of the whole system i e Commissioning of GIATSU system 2 Commissioning is carried...
Page 54: ...me Address Tel Supplier Delivery date dd mm yy Installation section Principal Commissioning section Principal Remark recharged refrigeration quantity to system kg Name of refrigerant R22 R407C R410A I...
Page 55: ...t Cooling Unit No 1 No 2 No 3 Run Voltage V Total current of run A Operation current of compressor A High pressure pressure Kg cm 2 Low pressure pressure Kg cm 2 Inlet air temperature C Outlet air tem...
Page 56: ...unit operation mode 0 12 T4 ambient temp Actual Value 26 Indoor unit quantity Actual Value 13 Discharge temp of inverter compressor Actual Value 27 The last malfunction code E P H if no malfunction d...
Page 57: ...C Industria 13 l Pol gono Industrial El Pedregar 08160 Montmel Barcelona Spain Phone 0034 93 390 42 20 Fax 0034 93 390 42 05 info giatsu com www giatsu com...
