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AERMEC SGE250, Installation Manual

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AERMEC SGE250 Installation Manual Download Page 27

27

FITTING THE CONNECTION PIPE

Outdoor unit

Indoor unit

GAS line

LIQUID line

Condensate discharge

Siphon

OUTDOOR UNIT BELOW AND INDOOR UNIT 
ABOVE
In this case it is necessary to install a siphon 
(F) every 10 metres of height difference on 
the suction piping (C) in order to block the 
outflow of refrigerant and thereby to avoid 
liquid returning to the compressor. The 
connection pipes must be insulated. The 
maximum height difference between the 
indoor unit and the outdoor unit must not 
exceed the values indicated in the table.

WARNING
Wrap pipe insulating material around the joint 
on the indoor unit and secure it with plastic 
straps to avoid condensate forming at the joints.

OUTDOOR UNIT ABOVE AND INDOOR UNIT 
BELOW
In this case, provision must be made on the 
suction piping (C) for siphons (F) every 3 
metres of height difference. The purpose of 
these siphons is to enable oil to be returned 
to the compressor. The connection pipes must 
be insulated. The maximum height difference 
between the indoor unit and the outdoor unit 
must not exceed the values indicated in the 
table.

Summary of Contents for SGE250

Page 1: ... t i o n m a n u a l T r a n s l a t i o n f r o m o r i g i n a l EN 2 1 1 0 5 2 9 9 7 8 6 _ 0 2 Q OUTDOOR UNITS C o o l i n g c a p a c i t y 2 7 7 5 8 6 k W H e a t i n g c a p a c i t y 2 9 3 6 0 0 k W S G E 2 5 0 3 5 0 5 0 0 7 0 0 50Hz ...

Page 2: ......

Page 3: ...mous with Safety Quality and Reliability The data may undergo modifications considered necessary for the improvement of the product at any time and without the obligation for any notice thereof Thank you once again AERMEC S p A This marking indicates that this product should not be disposed with other household wastes throughout the EU To prevent possible harm to the environment or human health fr...

Page 4: ...t Réfrigérant R32 R32 Kältemittel Refrigerante R32 Raffreddamento e riscaldamento Cooling and heating Refroidissement et chauffage Kühlung und Heizung Frío y calor Wi Fi Wi Fi Wi Fi Wi Fi Wi Fi Depuratore d aria Cold Plasma Air Purifiers Cold Plasma Purificateur d air Cold Plasma Luftreiniger Cold Plasma Purificador de aire Cold Plasma ...

Page 5: ...R UNIT INSTALLATION 22 CONDENSATE DISCHARGE 25 COOLING CONNECTIONS 26 CREATING THE REFRIGERANT LINES 28 NOTES FOR THE CONSTRUCTION OF REFRIGERANT LINES 30 CREATING A VACUUM AND TOPPING UP THE REFRIGERANT GAS CHARGE 31 LEAK DETECTOR 34 ELECTRICAL CONNECTIONS 35 CHECKS ON ELECTRICAL DEVICES 36 ELECTRICAL WIRING BETWEEN THE INDOOR AND OUTDOOR UNIT 37 WIRING DIAGRAMS 38 OPERATING TEST 40 CHECKS TO BE ...

Page 6: ...TECHNICIANS OR QUALIFIED PERSONNEL Please follow the steps below 1 Turn off the unit and disconnect it from the electrical power supply 2 Drain the refrigerant gas 3 Extract the remaining gas 4 Clean with Nitrogen N2 5 Ensure that there are not naked flames 6 The refrigerant must be recycled in the special tanks FILLING R32 REFRIGERANT GAS THESE PROCEDURES MAY ONLY BE FOLLOWED BY SPECIALISED TECHN...

Page 7: ...tion for using the flammable refrigerant The unit must be installed in a room that is larger than the minimum room area Maintenance must be done in a room that is larger than the minimum room area Check whether the maintenance area is well ventilated The continuous ventilation status should be kept during the operation The unit can be repaired only with the method suggested by the manufacturer WAR...

Page 8: ...the air conditioner is connected to the power supply or to a power socket with the correct voltage and frequency Using power supplies with the incorrect voltage and frequency could damage the unit and consequently risk starting a fire The voltage must be stable without major fluctuations Install on a solid surface which can bear the weight of the air conditioner Check the support is securely insta...

Page 9: ...act with the refrigerant pipes as they could reach high temperatures and moving parts such as the fans If the units are installed in a location exposed to electromagnetic interference shielded twisted pair cables must be used for the communication connections between the units To avoid communication errors between the units ensure that the communication line cables are correctly connected to their...

Page 10: ... a suitable air exchange The wired panel must be connected to the unit before powering on the unit Failure to do so will prevent the wired panel from operating PRECAUTIONS FOR USE Ensure the equipment is not used by children or disabled people without suitable supervision also note that the unit should not be used by children as a toy Only use the remote control to adjust the air flow do not force...

Page 11: ...ice and provide the following information that is available on the characteristics plate 1 Name of the unit model version serial number and date of production 2 Error code explaining what happened before and after the error warning DISCLAIMER AERMEC DOES NOT ASSUME ANY RESPONSIBILITY FOR DAMAGES TO THE UNIT OR WARRANTY LOSS IN CASE 1 The unit is used improperly 2 Attempts to modify alter or repair...

Page 12: ...XX Frequenza Nominale Rated Frequency XXX Refrigerante Refrigerant XXX Peso Weight Potenza Assorbita Nominale Rated Power Input XXX XXX MADE IN CHINA XXXXXXXXX AERMEC S p A VIA ROMA 966 BEVILACQUA VR ITALY Solo Unita Interna Indoor Unit only XXX XXX XXX XXXX XX XX Data di Produzione Manufactured Date Sample label RECEIVING THE PRODUCT Packaging label Placed on the packaging displays the data ident...

Page 13: ...performances Heatingcapacity kW 0 82 1 08 3 10 1 61 Heatinginputpower kW 0 12 0 10 0 78 0 30 Maximumheatingperformances Heatingcapacity kW 3 37 4 22 5 85 7 91 Heatinginputpower kW 1 20 1 68 2 00 2 75 Heatinginputcurrent A 3 2 4 2 5 6 7 0 Seasonalefficiency temperateclimate SCOP 4 00 4 00 4 00 4 00 Efficiencyenergyclass 3 A A A A Annualpowerconsumption kWh annum 910 945 1435 1818 Seasonalefficiency...

Page 14: ...r Type type Inverterrotary Refrigerant type R32 R32 R32 R32 Refrigerantcharge kg 0 55 0 55 1 08 1 42 Potentialglobalheating GWP 675kgCO2eq EquivalentCO2 t 0 37 0 37 0 73 0 96 Indoorunit SGE250W SGE350W SGE500W SGE700W Outdoorunit SGE250 SGE350 SGE500 SGE700 Electricdata Ratedpowerinput 1 kW 2 2 2 2 2 5 2 5 Ratedcurrentinput 1 A 10 0 10 0 13 0 15 5 Refrigerationpipework Diameterofliquidrefrigerantc...

Page 15: ...onic valve WARNING The safety devices can block the unit if used outside the operating limits OPERATING LIMITS New R32 ecological refrigerant gas with low GWP Operating mode cooling heating dehumidification automatic and fan only Particularly quiet operation Microproccessor control Auto restart function Self diagnosis function Air filter easily removed and cleaned Easy installation and maintenance...

Page 16: ...50 SGE350 SGE500 SGE700 A mm 720 720 805 890 B mm 270 270 330 342 C mm 495 495 554 673 D mm 835 835 915 995 E mm 300 300 370 398 F mm 540 540 615 740 Netweight kg 23 23 33 43 Weightfortransport kg 25 25 35 46 B A C D E F Carton Box Example ...

Page 17: ...17 TECHNICAL DIMENSIONS SGE250 SGE350 SGE500 mm mm ...

Page 18: ...18 SGE700 mm ...

Page 19: ...e well ventilated so that the outdoor unit can take in and discharge sufficient quantities of air Ensure that there are no obstacles near the outdoor unit s air inlets or outlets Remove any obstacles which may be blocking the intake or discharge of air The site of the installation must be sufficiently solid to bear the weight of the outdoor unit and it must also be able to absorb any vibrations an...

Page 20: ...to fall and lead to accidents If the unit needs to be moved to another place con sult your local retailer or the After Sales Service be forehand this should only be carried out by Person nel with specific technical skills To ensure good drainage the condensate discharge pipes must be correctly installed following the instal lation instructions Adopt the most suitable measures to avoid heat dispers...

Page 21: ...on is wired in compliance with the laws and standards in force and with the in structions in this manual To protect the unit against short circuits fit a ther momagnetic isolator switch to the power line with a minimum contact gap of 3mm on both poles Check the earth cable is connected to the earthing system of the building itself For the power supply use undamaged cables with a section that is su...

Page 22: ... HOLES B D Air inlet Air outlet Air inlet A B D 3 cm Outdoor unit Distance A mm Distance B mm SGE250 452 255 SGE350 452 255 SGE500 514 340 SGE700 540 350 Air inlet Air inlet Air outlet If you install the unit on the ground or on a concrete platform 1 Mark the locations of the four expansion bolts 2 Prepare holes for the expansion bolts 3 Place a nut at the end of each expansion bolt 4 Hammer the e...

Page 23: ...ical wiring and remove it 3 Unscrew the cable clamp under the terminal block and place it laterally 4 Connect the cable according to the wiring diagram and screw the U lug of each cable firmly to the corresponding terminal 5 After checking that each connection is secure wrap the cables to prevent rainwater from flowing into the terminal 6 Using the cable clamp secure the cable to the unit Screw th...

Page 24: ... 4 0 8 70 75 1 The tubes must be positioned along the wall trying to hide them as much as possible The tube folding radius is 10 cm 2 If the outdoor unit is higher than the hole in the wall make a U curve in the tube before it enters the room to prevent any rain from getting in U CURVE CONDENSATE DISCHARGE WALL Tighten the nut with a torque wrench referring to the following section STEP 5 ...

Page 25: ...ensate drain fitting is not equipped with a rubber seal B proceed as follows 1 Insert the condensate drain connection into the hole in the base tray of the unit The fitting will snap into place 2 Connect the condensate drain hose not supplied to the condensate drain connection to redirect the water from the unit when in heating mode IF THE OUTDOOR UNIT IS INSTALLED ABOVE THE INDOOR UNIT The pipe m...

Page 26: ...igerant gas to add according to the models for each additional metre of piping The pipe wall must be at least 0 8mm thick and the pipe must be able to withstand a pressure of 6 0 MPa The longer the connection pipe the lower the level of efficiency REFRIGERANT PIPES Indoor units SGE250W SGE350W SGE500W SGE700W Outdoor units SGE250 SGE350 SGE500 SGE700 Refrigerationpipework Maximumrefrigeranttube le...

Page 27: ...een the indoor unit and the outdoor unit must not exceed the values indicated in the table WARNING Wrap pipe insulating material around the joint on the indoor unit and secure it with plastic straps to avoid condensate forming at the joints OUTDOOR UNIT ABOVE AND INDOOR UNIT BELOW In this case provision must be made on the suction piping C for siphons F every 3 metres of height difference The purp...

Page 28: ...ngs on the outdoor unit 3 You are advised to avoid bending the refrigerant lines with a radius of less than 100mm so as not to crush the pipe section 4 If the difference in height between the indoor unit and the outdoor unit exceeds 3 metres H1 H2 and the outdoor unit is positioned above the indoor unit it is recommended to provide a siphon or a loop on the gas pipe to facilitate the return of lub...

Page 29: ...Fig A Fig C Fig E Fig B Fig D Fig F 29 ...

Page 30: ... it enters the wall When using insulating tape the final wrap should half cover the first wrap of tape No gap IF THE OUTDOOR UNIT IS INSTALLED BELOW THE INDOOR UNIT The condensate discharge pipe must be positioned above ground level and the end section of the pipe must not be immersed in water All the pipes must be fixed to wall with brackets Wrap the pipes in tape from bottom to top All the pipes...

Page 31: ...hose to the HP side 11 Vacuum gauge 12 Leak detector 1 CONNECTING THE LOW PRESSURE HOSE AND CREATING THE VACUUM Using the service socket split systems normally have a single socket connect the hose to the service connection on the outdoor unit and to the inlet on the pressure gauge unit shut off using the blue valve marked LOW Blue hose 2 VAC 5 Connect the hose to the vacuum pump and to the inlet ...

Page 32: ... under the same conditions after a few minutes Close the yellow valve marked VAC Switch off the vacuum pump which must be fitted with a shut off valve 11 Check that the vacuum gauge does not show a drop in the vacuum level compared with when the pump was operating This operation also serves as a safety check to ensure that the hoses used are not worn and therefore leaking 12 CREATING A VACUUM ON T...

Page 33: ...de 17 LOW HIGH VAC REF 3 4 5 6 TOPPING UP THE REFRIGERANT GAS Depending on the length of the lines if the installation needs topping up with refrigerant gas proceed as follows Switch on the unit in Cooling mode Leave the LP hose connected to the pressure gauge unit The valve marked VAC should be kept closed Connect the cylinder of refrigerant gas to the hose connected to the pressure gauge unit co...

Page 34: ...sure switch cut out C D Flare nuts for indoor unit WARNING Avoid the use of detergents containing chlorine This could react with the refrigerant and corrode the copper piping 1 With leak detector Check whether there are leaks with the leak detector 2 With soapy water If the leak detector is not available use soapy water for detecting the leaks Apply soapy water on the suspected position and keep t...

Page 35: ...ge and frequency as indicated on the data plate Using power supplies with the incorrect voltage and frequency could damage the unit and consequently risk starting a fire The voltage must be stable without major fluctuations The available electric power should be sufficient to supply the air conditioner The power supply cable should be safe and secure in order to avoid damage caused by pulling out ...

Page 36: ...e power connection cable to extend or reduce the distance Electrical component repair and maintenance procedures must include initial safety checks and component inspection procedures If a defect is found that can generate safety risks the power supply must be interrupted until the problem is resolved If the problem cannot be solved immediately but it is necessary to keep the unit running an appro...

Page 37: ... supplied Not supplied H07RN F 3G1 5mm2 H07RN F 3G1 5mm2 H07RN F 3G2 5mm2 H07RN F 3G2 5mm2 Thermomagnetic switch Not supplied Not supplied Not supplied Not supplied 16A 16A 20A 25A INDOOR UNIT SGE250W SGE350W SGE500W SGE700W Connection cable between outdoor unit and indoor unit 1 Not supplied Not supplied Not supplied Not supplied H07RN F 5G1 5mm2 H07RN F 5G1 5mm2 H07RN F 5G1 5mm2 H07RN F 5G2 5mm2...

Page 38: ...SGE250 SGE350 SGE500 NOTE As the standby control needs the cross section area of cable connected to W 1 L 2 N must be selected to suit the maximum system current The maximum system current is equal to the sum of indoor unit and outdoor unit rated current NOTES This symbol indicates the element is optional the actual shape shall be prevail This symbol indicates theelement exist various locations CO...

Page 39: ...PTIONAL OPTIONAL OPTIONAL OPTIONAL OPTIONAL OPTIONAL OPTIONAL OPTIONAL OPTIONAL NOTE As the standby control needs the cross section area of cable connected to W 1 L 2 N must be selected to suit the maximum system current The maximum system current is equal to the sum of indoor unit and outdoor unit rated current SGE700 WARNING for the correct installation it is essential to refer to the wiring dia...

Page 40: ... the connection and supply cables are correctly connected to the unit 4 Ensure that the gas and liquid pipe valves are open 5 Remove any dust and residue created during the installation operations Performing the test 1 Connect the unit to the power supply and press the ON OFF button on the remote control to start the test 2 Press the MODE button several times select COOL HEAT FAN etc and check tha...

Page 41: ...h could blow Has the unit been properly earthed Risk of electrocution Damage to components Do the section and type of electric cables respect the indications given in the manual Possible electrical operating faults or damage to components which could blow Are the air supply and delivery points on the indoor and outdoor units free of obstacles Poor performance Have the connection pipe length and re...

Page 42: ... NOTES Do not clean with hot water Do not dry the flame Do not operate the air conditioner without the air filter Do not use brushes or tools drives CHECK BEFORE STARTING Check to make sure that the inlet and outlet are not obstructed by objects on both units external and internal Check to make sure that the cable ground connection is connected and not damaged Check to make sure the air filter is ...

Page 43: ... owing to the expansion and subsequent contraction of its plastic parts The outdoor unit makes noises The outdoor unit makes different noises depending on the current operating mode Both the indoor unit and the outdoor unit make noises If the sound is similar to a low hiss during operation this is normal It is caused by the refrigerant gas flowing in the two units If the sound is a low hiss heard ...

Page 44: ...osed while the unit is working Excessive heat generated by sunlight Close the windows and curtains when it is very hot or the sun is shining very brightly Too many heat sources in the room people computers switched on electronic devices working etc Reduce the unnecessary heat sources Low refrigerant load owing to leakages or long term use Check if there are any refrigerant leakages and reload the ...

Page 45: ... windows are closed while the unit is working Low refrigerant load owing to leakages or long term use Check if there are any refrigerant leakages and reload the refrigerant if necessary Refer to the relative paragraph in this manual The indicator lights carry on flashing The unit might stop operating or carry on working safely If the indicator lights continue flashing or error codes appear wait ab...

Page 46: ...Evaporator coil temperature sensor T2 is in open circuit or has short circuited TS26 9 times OFF E7 EH0b Indoor PCB Display board communication error for some models TS27 7 times OFF EC Refrigerant leak detected TS28 1 time ON F0 Current overload protection TS29 2 times ON F1 Outdoor room temperature sensor T4 is in open circuit or has short circuited TS26 3 times ON F2 Condenser coil temperature ...

Page 47: ...door units mode conflict match with multi outdoor unit For other errors The display board may show a garbled code or a code undefined by the service manual Ensure that this code is not a temperature reading Troubleshooting Test the unit using the remote control If the unit does note respond to the remote the indoor PCB requires replacement If the unit responds the display board requires replacemen...

Page 48: ...t or has short circuited for free match indoor units TS26 6 times OFF EH 60 Indoor room temperature sensor T1 is in open circuit or has short circuited TS26 6 times OFF EH 61 Evaporator coil temperature sensor T2 is in open circuit or has short circuited TS26 12 times OFF EC 07 The outdoor fan speed is operating outside of the normal range for some models TS23 9 times OFF EH 0b Indoor PCB Display ...

Page 49: ...rotection ON ON TS31 6 Inverter compressor drive error OFF FLASH TS34 7 Inverter compressor drive error FLASH LIGHT TS34 8 Communication error between outdoor main chip and compressor driven chip FLASH FLASH TS19 ERROR DISPLAY FOR SOME OUTDOOR UNITS There are two LED lights a red and a green one welded in outdoor main board After power ON LED show different actions when encounter different problem...

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