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INSTALLATION MANUAL

LREQ5B7Y1
LREQ6B7Y1
LREQ8B7Y1
LREQ10B7Y1
LREQ12B7Y1
LREQ15B7Y1
LREQ20B7Y1

Air cooled refrigeration condensing unit

4PWEN74302-1D.book Page 1 Thursday, April 27, 2017 9:01 PM

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Summary of Contents for LREQ-BY1

Page 1: ...INSTALLATION MANUAL LREQ5B7Y1 LREQ6B7Y1 LREQ8B7Y1 LREQ10B7Y1 LREQ12B7Y1 LREQ15B7Y1 LREQ20B7Y1 Air cooled refrigeration condensing unit 4PWEN74302 1D book Page 1 Thursday April 27 2017 9 01 PM...

Page 2: ...det fremkommer i den Tekniske Konstruksjonsfilen D og gjennom positiv bed mmelse av E Anvendt modul F G Risikokategori H Se ogs neste side 13 jotka on esitetty asiakirjassa A ja jotka B on hyv ksynyt...

Page 3: ...peratuur M C Jahutusaine N Surve turvaseadme seadistus P bar Tootmisnumber ja tootmisaasta vaadake mudeli andmeplaati 21 PS K bar TS TSmin L C TSmax PS M C N P bar 22 Maksimalus leistinas sl gis PS K...

Page 4: ...lectric shocks or fire When installing the unit in a small room take measures so that the refrigerant may not exceed the limiting concentration in the event of refrigerant leakage Contact your dealer...

Page 5: ...connected indoor unit to know the climate class EN60335 2 89 EMC CHARACTERISTICS This system is a class A product In a domestic environment this product may cause radio interference in which case the...

Page 6: ...d on the size specified by the solenoid valve and mechanical thermostatic expansion valve being used Route the path to the indoor unit heat exchanger so that the flow of refrigerant is from top to bot...

Page 7: ...l height on the suction side no higher than 500 mm Wall height for sides no limit If the height is exceeded the above calculate h1 and h2 shown in the figure below and add h1 2 to the service space of...

Page 8: ...be attached attach it to the whole face of the base The height of the base should be at least 150 mm from the floor Secure the unit to its base using foundation bolts Use four commercially available M...

Page 9: ...adverse influence of residual substances such as the oxidation of refrigerant oil and the generation of scale is considered If the indoor unit or outdoor unit is disconnected from the piping for a lo...

Page 10: ...is required at 5 m intervals from outdoor unit d1 e B d2 C c D1 F E f D2 A b a Outdoor unit Showcase Unit cooler Gas piping Liquid piping H Refrigerant piping size Unit mm Outdoor unit side Piping siz...

Page 11: ...yer 6 5 Connecting the refrigerant piping CAUTION In addition to gas and liquid shutoff valves this unit has a maintenance shutoff valve see diagram below Do not operate the maintenance shutoff valve...

Page 12: ...proceed with connection of the field piping 1 Service port 2 Stop valve 3 Point of pipe cutting just above brazing point or above marking A Pinched piping B Pinched piping CAUTION Precautions when con...

Page 13: ...the screw thread Do not apply a screw lock agent for flare nut use to the sealing part Be sure to tighten the cap securely after the work Refer to Operation Method of Shutoff Valves on page 9 for the...

Page 14: ...effect but also may cause capacitor abnormal heating accident due to high frequency waves Only proceed with wiring work after blocking off all power Always ground wires in accordance with relevant lo...

Page 15: ...aker 14 Earth leakage circuit breaker 15 Panel 16 Run input 17 Earth 18 OFF Normal mode ON Low noise mode Note Use conduit for power supply wiring Make sure the weak electric wiring i e for the remote...

Page 16: ...provided that the system impedance Zsys is less than or equal to Zmax and EN IEC61000 3 12 2 provided that the short circuit power Ssc is greater than or equal to the minimum Ssc value at the interfac...

Page 17: ...arth wire may not contact sufficiently and the earthing effect of the wire may be lost Do not finish strand wire with solder 7 4 Procedure for wiring inside units Referring to the following figure sec...

Page 18: ...s no decrease in the pressure over a period of 24 hours If there is a decrease in the pressure check for and repair leaks Vacuum drying Operate the vacuum pump for more than three hours from the servi...

Page 19: ...7 2 Make sure insulation work is done See 8 2 Thermal insulation work on page 15 3 Make sure there is no faulty refrigerant piping See 6 REFRIGERANT PIPING on page 6 9 CHECKS AFTER WORK COMPLETION Mak...

Page 20: ...peration switch of the outdoor unit after the speci fied amount of refrigerant is replenished To prevent liquid compression e Caution Fully open the shutoff valves on the gas and liquid sides promptly...

Page 21: ...ion code items can be displayed on the condensing unit 1 Make sure that the LED H1P is off If the LED is on press the MODE button BS1 once 2 Press the MODE button BS1 once The LED H1P starts blinking...

Page 22: ...3 7 10 Calculate the amount of all refrigerant in this system 8 Table 1 Capacity and amount of refrigerant of the indoor unit Show case and Blower coil Note 1 Case of showcase the condition of capaci...

Page 23: ...4PWEN74302 1D book Page 1 Thursday April 27 2017 9 01 PM...

Page 24: ...4PW74302 1D 2016 11 Copyright 2012 Daikin 4PW74302 1 D 0000000L 4PWEN74302 1D book Page 1 Thursday April 27 2017 9 01 PM...

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