Carrier 42HQE009 Installation Manual

Contents

42HQE009/012/018/022-38YE009/012/018/022GB - 8Refrigerant piping connectionFlaring• Cut a pipe with a pipe cutter.• Insert a flare nut into a pipe and flare the pipe.Outer diam. A (mm)(mm) Max. Min.Ø 6.35 1.3 0.7Ø 9.53 1.6 1.0Ø 12.7 1.8 1.0Ø 15.88 2.4 2.2Tightening Connection• Align pipes to be connected.• Sufficiently tighten the flare nut with fingers, and then tighten itwith a spanner and torque wrench as shown.CAUTION• Excessive torque can break nut depending on installationconditions.Outer diam. Tightening torque Additional tightening(N.cm) torque (N.cm)Ø 6.35 1570 1960(160kgf.cm) (200kgf.cm)Ø 9.53 2940 3430(300kgf.cm) (350kgf.cm)Ø 12.7 2940 4410(300kgf.cm) (450kgf.cm)Ø 15.88 7360 7850(750kgf.cm) (800kgf.cm)Outdoor unit installation90°C Oblique Roughness BurrAWiring connection1. Remove the electric parts cover from the outdoor unit.2. Connect the connective cables to the terminals as identifiedwith their respective matched numbers on the terminal block ofindoor and outdoor units.3. To prevent the ingress of water, from a loop of the connectivecable as illustrated in the installation diagram of indoor andoutdoor units.4. Insulate unused cords (conductors) with PVC-tape. Processthem so they do not touch any electrical or metal parts.CAUTION:Wrong wiring connections may cause some electrical parts tomalfunction. A disconnection device having an air gap contactseparation in all active conductors should be incorporated in thefixed wiring according to the National Wiring Regulation. All wiringmust comply with local and national electrical codes and beinstalled by qualified and skilled electrician. Cover ScrewTerminal block of outdoor unit38YE009/012/018Terminal block of outdoor unit38YE022 Wire-holding Board Connective cable(1, 2, 3, 4, 5)CDU signal wire(7, 8)10 cm 40 cmConnective cable(Cooling & heating type)

/ 11

Related manuals for Carrier 38YE012