■ Use the following method when using round crimp-styleterminals.3 21BB12 3CAUTION■ In case the use of stranded conductor wires isunavoidable for one reason or another, make sure toinstall round crimp-style terminals on the tip.Place the round crimp-style terminal on the wire up to thecovered part and fasten the terminal with the appropriatetool.1 Round crimp-style terminal2 Screw3 Flat washer4 Pull the connected wire and make sure that it does notdisconnect. Then fix the wires in place in the wire clamp. Seealso "Notes to observe" on page 13.Notes to observe2 11 Stranded conductor wire2 Round crimp-style terminal■ When connecting the connection wires to the terminalboard using a single core wire, be sure to performcurling.Observe the notes mentioned below when wiring to the power supplyterminal board.Not executing the connections properly may cause heatand fire.Strip the wire at terminal block:1 Strip wire end to this point2 Excessive strip length may cause electrical shockor leakage.12■ When cables are routed from the unit, a protection sleevefor the conduits (PG-insertions) can be inserted.3AB312 4 5■■1 Communication wiring2 Power supply cable3 Conduit plateUse the specified wire type and connect it securely.Shape wires so that the service panel and cable cover fitsecurely (refer to "5.1. Opening the unit" on page 3).1 Wire2 Bush3 Nut4 Frame5 HoseA InsideB OutsideWhen you do not use a wire conduit, be sure to protectthe wires with vinyl tubes to prevent the edge of the holefrom cutting the wires.■ Follow the electric wiring diagram for electrical wiringworks.■ Form the wires and fix the cover firmly so that the covermay be fit in properly.■ For field wiring use appropriate wire conduits accordingto the applicable legislation.■ Refer to the installation manual attached to the indoorunit for wiring of indoor unit, etc.Installation manual13ERLQ018~030BAVJUOutdoor unit for air to water heat pump4PW62590-1 – 07.2010
14. START-UP AND CONFIGURATION15. TEST OPERATIONATTENTIONIt is important that all information in this chapter is readsequentially by the installer and that the system isconfigured as applicable.DANGER: ELECTRICAL SHOCKSee "4. General safety precautions" on page 3.14.1. Pre-operation checksAfter the installation of the unit, first check the following items. Onceall below checks are fulfilled, the unit must be closed, only then canthe unit be powered up.1 InstallationCheck that the unit is properly installed, to avoid abnormalnoises and vibrations when starting up the unit.2 Electrical wiring■ Field wiringBe sure that the field wiring has been carried out accordingto the instructions described in the chapter "13. Electricwiring work" on page 11, according to the wiring diagramsand according to the applicable legislation.■ Power supply voltageCheck the power supply voltage on the local supply panel.The voltage must correspond to the voltage on theidentification label of the unit.■ Ground wiringBe sure that the ground wires have been connected properlyand that the ground terminals are tightened.■ Insulation test of the main power circuitUsing a mega tester for 500 V, check that the insulationresistance of 2 MΩ or more is attained by applying a voltageof 500 V DC between power terminals and ground. Neveruse the mega tester for the transmission wiring.■ Fuses, circuit breakers, or protection devicesCheck that the fuses, circuit breakers, or the locally installedprotection devices are of the size and type specified in thechapter "13. Electric wiring work" on page 11. Be sure thatneither a fuse nor a protection device has been bypassed.■ Internal wiringVisually check the switch box and the inside of the unit onloose connections or damaged electrical components.3 Refrigerant piping■ Pipe size and pipe insulationBe sure that correct pipe sizes are installed and that theinsulation work is properly executed.■ Stop valvesBe sure that the stop valves are open on both liquid and gasside.4 Internal unit■ Damaged equipmentCheck the inside of the unit on damaged components orsqueezed pipes.■ Refrigerant leakCheck the inside of the unit on refrigerant leakage. If there isa refrigerant leak, call your local dealer. Do not touch anyrefrigerant which has leaked out of refrigerant pipingconnections. This may result in frostbite.■ Oil leakCheck the compressor for oil leakage. If there is an oil leak,call your local dealer.■ Air inlet/outletCheck that the air inlet and outlet of the unit is not obstructedby paper sheets, cardboard, or any other material.WARNING■ During tests never pressurize the appliances with apressure higher than the maximum allowablepressure (as indicated on the nameplate of the unit).■ If refrigerant gas leaks, ventilate the area immediately.Toxic gas may be produced if refrigerant gas comesinto contact with fire.■ Never directly touch any accidental leakingrefrigerant. This could result in severe wounds causedby frostbite.DANGER: DO NOT TOUCH PIPING AND INTERNALPARTSSee "4. General safety precautions" on page 3.15.1. Test run recommendationsAfter installation, the installer is obliged to verify correct operation.Therefore a test run must be performed according to the proceduresdescribed below.15.2. Maintenance and testing logbookProvide a logbook and machine card.In accordance with the applicable legislation, it may be necessary toprovide a logbook with the equipment containing at least: info onmaintenance, repair work, results of tests, stand-by periods, ….Also, at least, following information shall be provided at an accessibleplace of the system:■ instructions for shutting down the system in case of anemergency■ name and address of fire department, police and hospital■ name, address and day and night telephone numbers forobtaining service.NOTENOTEDANGER: ELECTRICAL SHOCKSee "4. General safety precautions" on page 3.Note that during the first running period of the unit,required power input may be higher. This phenomenonoriginates from the compressor that requires a 50 hourrun elapse before reaching smooth operation andstable power consumption. Reason is that the movingparts are made out of iron and that it takes some timeto smooth the surfaces that make contact.To protect the compressor, be sure to turn on thepower supply 6 hours before starting operation.ERLQ018~030BAVJUOutdoor unit for air to water heat pump4PW62590-1 – 07.2010Installation manual14