ActronAir Serene WRC-026AS Installation Manual

Page 165. Indoor Unit Installation Serene Wall Hung Split SystemInstallation OverviewWARNINGALL WIRING MUST PERFORMED STRICTLY INACCORDANCE WITH THE WIRING DIAGRAMLOCATED ON THE INSIDE OF THE INDOOR UNIT’ SWIRE COVER.1. Unscrew the cable clamp below the terminal block andplace it to the side.2. Facing the back of the unit, remove the plastic panel onthe bottom left-hand side.3. Feed the signal wire through this slot, from the back ofthe unit to the front.4. Facing the front of the unit, match the wire colors withthe labels on the terminal block, connect the u-lug andand firmly screw each wire to its correspondingterminal.CAUTIONDO NOT MIX UP MAINS POWER AND SIGNALWIRESThis is dangerous, and can cause the air conditioning unitto malfunction.1. After checking to make sure every connection issecure, use the cable clamp to fasten the signal cableto the unit. Screw the cable clamp down tightly.2. Replace the wire cover on the front of the unit, and theplastic panel on the back.NOTE ABOUT WIRINGTHE WIRING CONNECTION PROCESS MAY DIFFERSLIGHTLY BETWEEN UNITS.Step 7: Wrap piping and cablesBefore passing the piping, drain hose, and the signal cablethrough the wall hole, you must bundle them together tosave space, protect them, and insulate them.1. Bundle the drain hose, refrigerant pipes, and signalcable according to Fig. 5.15.Indoor UnitSpace behind unitRefrigerant pipingDrain hoseSignal wireInsulation tapeDRAIN HOSE MUST BE ON BOTTOMMake sure that the drain hose is at the bottom of thebundle. Putting the drain hose at the top of the bundlecan cause the drain pan to overflow, which can lead tofire or water damage.2. Using adhesive vinyl tape, attach the drain hose to theunderside of the refrigerant pipes.3. Using insulation tape, wrap the signal wire, refrigerantpipes, and drain hose tightly together. Double-checkthat all items are bundled in accordance with Fig. 4.19.DO NOT WRAP ENDS OF PIPINGWhen wrapping the bundle, keep the ends of the pipingunwrapped. You need to access them to test for leaksat the end of the installation process (refer to ElectricalChecks and Leak Checks section of this manual).Fig. 5.15