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3.2 Combinations

Indoor unit

The IT SKT 260 indoor unit can be combined with

the AT SKT 520-1060 outdoor units.

Fig. 10: Indoor unit

The following combinations of outdoor units can be

selected:

SKT 520 - Combination with 2 indoor units

Combination

Indoor units

2.6 kW

For more, see the next page.

SKT 790 - Combination with 3 indoor units

Combination

Indoor units

2.6 kW

lll

SKT 1060 - Combination with 4 indoor units

Combination

Indoor units

2.6 kW

llll

Operation

The compressor in the outdoor unit is operated by

means of regulating the control board in the out-

door unit. The chapter on "Regulation" in the

manual for the outdoor unit must therefore be

observed.

Help save on energy consumption in stand-by

mode! If the device, system or component is not

in use, we recommend disconnecting the power

supply. Components with a safety function is

excluded from our recommendation!

REMKO series SKT

Содержание SKT 1060 AT

Страница 1: ...Assembly and operating instructions Read the instructions prior to performing any task REMKO series SKT Multisplit outdoor unit SKT 520 SKT 790 SKT 1060 0175 2018 09 Edition 1 en_GB...

Страница 2: ...g inal Read these operating instructions carefully before commis sioning using this device These instructions are an integral part of the system and must always be kept near or on the device Subject t...

Страница 3: ...Operation 16 5 Installation instructions for qualified personnel 17 5 1 Important notes prior to installation 17 5 2 Wall openings 18 5 3 Installation materials 18 5 4 Selection of installation locat...

Страница 4: ...iew of the unit SKT 520 AT 54 14 2 Spare parts list for SKT 520 AT 55 14 3 Exploded view of the unit SKT 790 AT 56 14 4 Spare parts list for SKT 790 AT 57 14 5 Exploded view of the unit SKT 1060 AT 58...

Страница 5: ...ded may be fatal or cause serious injury WARNING This combination of symbol and signal word warns of a potentially hazardous situation which if not avoided may be fatal or cause serious injury CAUTION...

Страница 6: ...alls or floors n Mobile units must be set up securely on suit able surfaces and in an upright position Sta tionary units must be permanently installed for operation n The units and components should n...

Страница 7: ...otection and recycling Disposal of packaging All products are packed for transport in environ mentally friendly materials Make a valuable contri bution to reducing waste and sustaining raw mate rials...

Страница 8: ...supply V Ph Hz 230 1 50 Electr rated power consumption cooling 1 kW 1 75 2 47 3 89 Electrical rated power consumption heating 2 kW 1 50 2 27 3 00 Elec power consumption max kW 2 30 3 30 4 60 Electric...

Страница 9: ...1640791 1641060 1 Air intake temperature TK 27 C FK 19 C outside temperature TK 35 C FK 24 C max air flow volume 5 m pipe length 2 Air intake temperature TK 20 C outside temperature TK 7 C FK 6 C max...

Страница 10: ...We reserve the right to modify the dimensions and design as part of the ongoing technical development process A B C D E SKT 520 800 554 333 514 340 SKT 790 845 702 363 540 350 SKT 1060 946 810 410 673...

Страница 11: ...n kW 3 04 3 21 3 46 4 05 5 57 6 34 Power consumption in kW 1 30 1 32 1 35 1 41 1 54 1 57 COP 2 33 2 43 2 56 2 88 3 61 4 04 Cooling capacity SKT 520 0 00 0 50 1 00 1 50 2 00 2 50 3 00 3 50 4 00 4 50 5...

Страница 12: ...21 9 34 Power consumption in kW 1 92 1 94 1 99 2 07 2 27 2 31 COP 2 34 2 43 2 56 2 88 3 61 4 05 Cooling capacity SKT 790 0 00 0 50 1 00 1 50 2 00 2 50 3 00 3 50 4 00 4 50 5 00 5 50 6 00 6 50 7 00 7 5...

Страница 13: ...92 8 10 11 14 12 68 Power consumption in kW 2 53 2 57 2 63 2 74 3 00 3 05 COP 2 40 2 50 2 64 2 96 3 71 4 16 Cooling capacity SKT 1060 0 00 0 50 1 00 1 50 2 00 2 50 3 00 3 50 4 00 4 50 5 00 5 50 6 00 6...

Страница 14: ...d remote control The outdoor unit consists of a cycle with a compressor fin condenser three electronic expansion valves and a condenser fan The outdoor unit can be combined with REMKO indoor units fro...

Страница 15: ...Outdoor unit 3 Condensate drainage line 4 Condenser fan 5 Power supply 6 Shut off valves 7 Suction pipes 8 Injection pipes 9 Control lines The connection between the indoor unit indoor areas Ba Bb Bc...

Страница 16: ...Indoor units 2 6 kW 1 lll SKT 1060 Combination with 4 indoor units Combination Indoor units 2 6 kW 1 llll 4 Operation The compressor in the outdoor unit is operated by means of regulating the control...

Страница 17: ...pen the shut off valves on the refrigerant piping after installation is complete n Seal off open refrigerant piping with suitable caps or adhesive strips to prevent the infiltra tion of moisture and n...

Страница 18: ...s However it can also be used in the upper wall area min 1 75m above the floor Outdoor unit The outdoor unit is designed for horizontal installa tion on a base in outdoor areas The installation site m...

Страница 19: ...ed level of snow to prevent snow from entering the outdoor unit An optional wall bracket is available as an accessory 20 cm 1 Fig 13 Minimum clearance to snow 1 Snow Installation inside buildings n En...

Страница 20: ...600 D 150 E 600 All measurements in mm 5 6 Oil return measures If the outdoor unit is installed at a higher level than the indoor unit suitable oil return measures must be taken Usually an oil pump be...

Страница 21: ...uctural parts approved to support the static load refer to the installa tion instructions for the brackets 4 Ensure that structure borne sound is not transferred to parts of the building Use vibra tio...

Страница 22: ...al lines and refrigerant piping The con nections of the individual circuits must not be mixed up Mixing up the assignment of control lines and refrigerant piping can have fatal con sequences compresso...

Страница 23: ...l pres sure of min 10 mbar is used to remove all of the air and empty the pipes Any moisture present in the pipes will also be removed NOTICE A vacuum of at least 20 mbar must be pro duced The time re...

Страница 24: ...on If the temperature falls below the dew point con densation will form on the finned condenser during heating mode A condensate tray should be installed on the underside of the unit to drain any cond...

Страница 25: ...m ponent and indoor unit n Details concerning the electrical protection of the system are provided in the technical data Observe the required diameters n If the outdoor unit is installed on a roof ens...

Страница 26: ...lectrical wiring of the cable shown on the SKT 790 AT as an example 1 Power supply 2 Strain relief 3 Control line for indoor unit A 4 Control line for indoor unit C 5 Control line for indoor unit B RE...

Страница 27: ...h the IT SKT 260 indoor units 1 L A N A S A 1 L N 1 L B N B S B 1 L C N C S C 1 L D N D S D SKT 520 AT SKT 790 AT 1 L 1 1 2 N S SKT 1060 AT 1 L 1 1 2 N S A A 1 1 L 1 1 2 N S A 1 L 1 1 2 N S A Fig 23 E...

Страница 28: ...ins cable for outdoor unit 230 V 1 50 Hz IT Connection for indoor units 1 2 1 Compressor 2 Fan motor condenser 3 Four way valve 4 Crankcase heating 5 Condensate tray heating 6 Temperature probe for co...

Страница 29: ...50 Hz IT Connection for indoor units 1 3 1 Compressor 2 Fan motor condenser 3 Transformer 4 Four way valve 5 Crankcase heating 6 Condensate tray heating 7 Temperature probe for condenser outlet T3 8 T...

Страница 30: ...1 50 Hz IT Connection for indoor units 1 4 1 Compressor 2 Fan motor condenser 3 Transformer 4 Four way valve 5 Crankcase heating 6 Condensate tray heating 7 Temperature probe for condenser outlet T3...

Страница 31: ...A functional check should be performed to verify its correct function and identify any unusual operating behaviour prior to handing it over to the operator This check is dependent on the installed ind...

Страница 32: ...Proceed as previously described for all other cooling cycles Final tasks n Use the remote control to set the target tem perature to the required value n Re install all disassembled parts n Familiarise...

Страница 33: ...2 Operating mode coded Standby 0 Recirculation mode 1 Cooling mode 2 Heating mode 3 Force mode for test purposes 4 Defrosting 5 3 Indoor unit A connected load The load is displayed in HP If no unit is...

Страница 34: ...emp of evaporator centre for ind unit D T2D 31 Temp of evaporator centre for ind unit E T2E 32 Temperature of condenser outlet T3 33 Temperature of condenser air inlet T4 34 Hot gas temperature in com...

Страница 35: ...ay Temperature C 10 35 40 11 40 45 12 45 50 13 50 55 14 55 60 15 60 65 16 65 70 5 Air inlet temperature probe Display Temperature C 15 7 5 20 5 0 25 2 5 30 0 35 2 5 40 5 0 45 7 5 50 10 0 55 12 5 60 15...

Страница 36: ...Does a restart occur after around 5 minutes Schedule longer wait times Operational temperature range too low exceeded Are the fans on the units still working Observe temperature ranges Over voltage or...

Страница 37: ...r unit air inlet temperature probe faulty E5 Over voltage or under voltage error E8 Condenser fan speed control sensor not working F1 Temperature of suction pipe for indoor unit A faulty F2 Temperatur...

Страница 38: ...cannot communicate with the inverter board YES Is an LED still illuminated on the inverter board NO YES Check the electrical con nection between the inverter board and the con trol board Is this corre...

Страница 39: ...ween 220 and 240 V NO Correct the power supply YES YES Is voltage present between terminals P and N on the inverter board If the meas ured value is between 277 356 VDC SKT 520 AT or 277 410 VDC larger...

Страница 40: ...he connections YES Replace the control board NO Check the output voltage on the control board see annex Is voltage available to the output YES NO Replace the fan motor Check the DC motor the control u...

Страница 41: ...the high pressure probe s plug and measure the resistance The value should be 0 NO Replace the high pressure probe YES Switch the unit off YES Is the outside temperature higher than 50 C NO Is enough...

Страница 42: ...ould be 0 NO Replace the low pressure probe YES Switch the unit off YES Is the ambient temperature lower than 5 C or 15 C for units with a winter fan speed control NO Check that the valve is let ting...

Страница 43: ...and measure the total current consumption Is this within the specified range YES Check the cooling cycle Is this OK YES Switch the unit off YES Is the outside temperature higher than 50 C NO Clean the...

Страница 44: ...NO Check the electrical con nection between the heat gas line temperature probe and the control board Is this correctly implemented NO Establish the electrical con nection correctly YES YES Rectify t...

Страница 45: ...d Is it OK NO Establish the connection correctly YES YES Check the temperature probe s resistance for resistances see the table Is it OK YES NO Is the refrigerant temperature on the condenser outlet h...

Страница 46: ...ntrol board and the inverter board Is this OK NO Correct the connection Error recti fied YES Is the compressor s elec trical connection configured correctly NO NO Correct the connection Error recti fi...

Страница 47: ...ly Is the system running normally YES Are the power supply s cables fitted correctly Is the neutral wire correct NO NO Tighten the cable Error rectified YES Are all electrical connections in the elect...

Страница 48: ...ge 50 and on page 51 1 Fig 28 Check temperature probes 1 Multimeter Check compressor motor resistance values Use a multimeter to check the resistance values A A B B C C 1 Fig 29 Measurement of resista...

Страница 49: ...tmeter Normal resistance Red Black Multiple MOhm Red Black Multiple MOhm P N U N U V V W W Red Check the resistance values for the fan motor on the indoor unit Use a multimeter to check the resistance...

Страница 50: ...Resistance values for probes T1 T2 T3 T4 and T2B K Ohm K Ohm K Ohm K Ohm REMKO series SKT 50...

Страница 51: ...Resistance values for probe T5 K Ohm K Ohm K Ohm K Ohm 51...

Страница 52: ...t is recommended that you take out a mainte nance contract with an annual service from an appropriate specialist firm This enables you to ensure the operational reli ability of the plant at all times...

Страница 53: ...he electrical power supply to the unit 4 Cover the unit as far as possible with plastic foil in order to protect it from the influences of weather Permanent shutdown Ensure that units and components a...

Страница 54: ...the unit SKT 520 AT 1 2 19 20 7 8 18 24 17 16 13 14 10 5 6 11 3 9 4 15 12 22 21 25 23 Fig 32 Exploded view of the unit SKT 520 AT We reserve the right to modify the dimensions and design as part of t...

Страница 55: ...y valve 6 Electronic injection valve 7 Floor panel 8 Cover panel 9 Compressor 10 Heat gas probe 11 Shut off valve suction pipe 12 Side section left 13 Temperature probe for condenser outlet 14 Condens...

Страница 56: ...1 2 3 24 12 15 5 11 21 9 7 19 20 8 13 14 16 17 18 23 4 6 22 21 26 25 Fig 33 Exploded view of the unit SKT 790 AT We reserve the right to modify the dimensions and design as part of the ongoing technic...

Страница 57: ...y valve 6 Electronic injection valve 7 Floor panel 8 Cover panel 9 Compressor 10 Heat gas probe 11 Shut off valve suction pipe 12 Side section left 13 Temperature probe for condenser outlet 14 Condens...

Страница 58: ...4 25 24 26 22 23 13 15 14 18 20 19 21 27 9 10 8 12 11 6 5 7 28 16 17 29 Fig 34 Exploded view of the unit SKT 1060 AT We reserve the right to modify the dimensions and design as part of the ongoing te...

Страница 59: ...nic injection valve 9 Compressor 10 Liquid separator 11 Shut off valve suction pipe 12 Shut off valve injection pipe 13 Temperature probe for condenser outlet 14 Air inlet temperature probe 15 Tempera...

Страница 60: ...l return measures 20 Ordering spare parts 55 57 59 Outdoor unit board malfunction display 37 P Performance charts Cooling 11 12 13 Heating 11 12 13 Propellant in accordance with Kyoto Protocol 9 R Res...

Страница 61: ...61...

Страница 62: ...REMKO series SKT 62...

Страница 63: ......

Страница 64: ...t as advisers to our customers in air conditioning and heating technology SFlbCustomer Service Our equipment operates precisely and reliably However in the event of a fault REMKO customer service is q...

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