Haier 1UH071N1ERG Installation Manual Download Page 20 | Manualshive

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When installing MAXI SPLIT Series(1UH105N1ERG/1UH125P1ERG/1UH125P1ERK/1UH140P1ERG/1UH140P1ERK),Please

refer to the table below concerning the pipe lengths , heights and sizes.

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Summary of Contents for 1UH071N1ERG

Page 1: ...14 15 15 17 Contents English Definitions Safety considerations Before installation Selecting installation site Precautions on installation Refrigerant pipe size and allowable pipe length Refrigerant piping Leak test andvacuum drying Charging refrigerant Pump down operation Electrical wiring work Test operation This product must only be installed or serviced by qualified personnel Please read this ...

Page 2: ... product see unit name plate C additional refrigerant amount charged in the field D total refrigerant charge E outdoor unit F refrigerant cylinder and manifold for charging IMPORTANT INFORMATION REGA RDING THE REFRIGERANT USED Haier Industrial Park Qianwangang Road Eco Tech Development Zone Qingdao 266555 Shandong P R C A B C D kg kg kg R410A WARNING If the supply cord is damaged it must be replac...

Page 3: ...hat those voltages are 50V DC or less 1 Definitions 2 Safety considerations 1 1 Meaning of warnings and symbols Warnings in this manual are classified according to their severity and probability of occurrence DANGER Indicates an imminently hazardous situation which if not avoided will result in death or serious injury WARNING Indicates a potentially hazardous situation which if not avoided could r...

Page 4: ...ire Make sure that all wiring is secure using the specified wires and ensuring that external forces do not act on the terminal connections or wires Incomplete connection or fixing may cause a fire When wiring between the indoor and outdoor units and wiring the power supply form the wires so that the fronstside panel can be securely fastened If the frontside panel is not in place overheating of the...

Page 5: ... mixed into the system Tight Read 9 Precautions on refrigerant piping on page 10 carefully and follow these procedures correctly Since R410Ais a mixed refrigerant the required additional refrigerant must be charged in its liquid state If the refrigerant is in state of gas its composition changes and the system will not work properly The connected indoor units must be indoor units designed exclusiv...

Page 6: ...t causes short circuit suction of discharge air and this may have the following consequences Deterioration of the operational capacity Frequent frost acceleration in heating operation Disruption of operation due to rise of high pressure When a strong wind blows continuously on the face of the unit the fan can start rotating very fast until it breaks Refer to the figures for installation of this un...

Page 7: ...g pitch1 B leg pitch2 C Front grill air outlet side D Drain hole E Bottom frame F Knock out hole for piping line C D E F 349 174 A 600 174 80 27 37 99 276 367 70 90 450 B 405 410 2 1 5 4 2 6 Fix the outdoor unit to the foundation bolts using nuts with resin washers 1 as shown in the figure Height of barriers is below that of outdoor unit Back and side Above 150 Above 300 Above 200 Front and back A...

Page 8: ...ndard Make sure the drain works properly In regions where buildups of snow can be expected the accumulation and freezing of snow in the space between the heat exchanger and external plate may lower operating efficiency After punching the knock out hole the application of repair type paint on the surface around the edge sections is recommended to prevent rust 5 3 Drain pipe disposal Piping an other...

Page 9: ... ones for HFC type refrigerant may be used Vacuum Pump Vacuum drying May be used if a reverse flow check adaptor is attached Refrigerant Recovery Equipment Recovery of refrigerant May be used if designed for use with R410A Flare Tool Flare machining of piping Chages have been made in the flare machining dimension Refer to the next page Tools Materials Use Notes Vacuum Pump with a Check Valve Vacuu...

Page 10: ...tightness If a clutch type flare tool is used to machine flares on units that use R410A make the protruding part of the pipe between 1 0 and 1 5mm Copper pipe gauge for adjusting the length of pipe protrusion is useful Size mm Radial Thickness mm Size inch Type Type O pipes Type 1 2H or Hpipes 6 2 Piping Materials Types of Copper Pipes Reference Using this table as a reference choose pipes that me...

Page 11: ...sting pipes must be cleaned or replaced after removing the air conditioning units to be replaced 3 Prepare the flare connections for higher pressure See paragraph 6 2 The stem cap is sealed where indicated by the arrow Take care not to damage it After handling the stop valve make sure tighten the stem cap securely For the tightening torque refer to the table below Check for refrigerant leaks after...

Page 12: ...sing a 6mm drill 4x After knocking out the knock out hole it is recommended to apply repair paint to the edge and the surrounding end surfaces to prevent rusting When passing electrical wiring through the knock out holes remove any burrs from the know out holes and wrap the wiring with protective tape to prevent damage If there is any possibility that small animals enter the system through the kno...

Page 13: ...rants Use a vacuum pump to evacuate the installation No additional refrigerant is provided for air purging Make sure that the gas stop valve and liquid stop valve are firmly closed before performing the leak test or vacuum drying NOTICE The leak test must satisfy specification EN378 2 1 Vacuum leak test 1 1 Evacuate the system from the liquid and gas piping to 100 7 kPa 5 Torr 1 2 Once reached tur...

Page 14: ...ts indicated on the figures below opened The location is depending on mode type Fill using a cylinder with a siphon attached Charge the liquid refrigerant with the cylinder in up side down position Fill using a cylinder with a siphon attached Charge the liquid refrigerant with the cylinder in upright position This product contains fluorinated greenhouse gases covered by the Kyoto Protocol Do not v...

Page 15: ... 2 Push the BS4 pumping down operation button on the PC board of the outdoor unit 8 seconds Never leave the outdoor unit unattended with oopened front panel when power supply is on In case the stop valve on the liquid side is not securely closed during compressor operation during compressor operation pumping down operation cannot be executed Compressor and outdoor fan will start operation automati...

Page 16: ...e side Secure the electrical wiring with cable ties as shown in the figure in 11 2 for single split or 12 3 for maxi split Make sure no external pressure is applied to the terminal connectors When installing the earth leakage circuit breaker make sure that it is compatible with the inverter resistant to high frequency electrical noise to avoid unnecessary opening of the earth leakage circuit break...

Page 17: ... units connected in series correct Are any of the wiring attachment screws loose Is the insulation resistance at leaset 1 Use a 500V mege tester when measuring insulation Do not use a mega tester for low voltage circuits Extra refrigerant Is the size of the piping appropriate Is the insulation material for the piping attached securely Are both the liquid and gas pipes insulated Are the stop valves...

Page 18: ...l block Outdoor unit S R N T N L 1 2 3 1 2 3 1 2 3 1 2 3 Note 1 The master is the indoor unit which connect to a wired controller others are slaves please purchase wired controller separately for MAXI system 2 For one MAXI split system there is only one master 3 For the MAXI system with 2 to 3 indoor units the wiring method is the same with the diagram on the left except for the indor units quanti...

Page 19: ...20 45 P 30 L 20 45 P 30 L 20 45 P 30 L 20 45 P 30 L 20 45 P 30 L P 20 30 L P 20 30 Charge g P m P 0 P L1 L2 P L1 L2 L3 P L1 L2 L3 L4 __ L P 20 45 L P 20 45 __ L P 20 30 L P 20 30 P 20 30 L L P 20 45 Single Split Twin Triple Quadruple 1UH105 1UH125 1UH140 Example 2 1UH125 Remark a L is the main pipe length of liquid pipe P is the sum length of branch liquid pipes b The piping length L P means the s...

Page 20: ...20 60 80 80 60 80 80 80 80 When installing MAXI SPLIT Series 1UH105N1ERG 1UH125P1ERG 1UH125P1ERK 1UH140P1ERG 1UH140P1ERK Please refer to the table below concerning the pipe lengths heights and sizes ...

Page 21: ...draining pipes follow the instructions in the manual and make sure that they properly drain water so as to avoid dew condensation If not installed properly they may cause water leaks and damage the furnishings Do not spray water on the air conditioners or immerse the air conditioners in water Water on the unit presents a risk of electric shock Periodically check the platform on which is placed for...

Page 22: ...22 12 6 Failure diagnosis ...

Page 23: ......

Page 24: ...Address Haier Industrial Park Qianwangang Road Eco Tech Development Zone Qingdao 266555 Shandong P R C Contacts TEL 86 532 88936943 FAX 86 532 8893 6999 Website www haier com ...

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