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Kelvinator KSE362HPCA Installation Manual
Also see for KCT27036A: Installation manualUser manual
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14 electrical connection Kelvinator heat pump hot water systemElectrical wiringThe heat pump hot water system must be installed inaccordance with the AS/NZS 3000 wiring rules, the localelectrical authority regulations and any other applicablestandards. The pipe work, storage tank and heat pump areto be properly connected to the earthing system of thepremises in accordance with AS/NZS 3000. The fixed wiringmust be protected by insulating sleeving with the appropriatetemperature rating and a means for disconnection must beincorporated into the wiring.The heat pump hot water system has the capability to bewired on a standard continuous power supply or with anadditional off-peak supply if this is available at the premises.The heat pump requires a continuous power supply in bothconditions in order to power the electronics that control theheat pump, to ensure it has freeze protection and to allowthe auxiliary heating boost function to operate at any timeof the day. The continuous supply cable must be capable ofhandling the current required to power the 3.6kW element inthe storage tank.warningIn order to avoid a hazard due to inadvertent resetting ofthe heat pump's protective cut-outs, the continuous supplymust not be supplied through an external switching devicesuch as a timer, or connected to a circuit that is regularlyswitched on and off by the utility.If an off-peak power supply is connected to the heat pump,it will only operate its automatic heating function when theoff-peak power supply becomes available. The heat pumphas been designed to operate on extended off-peak which isavailable up to 18 hours of the day compared to the standardoff-peak which is available only 8 hours. The off-peak powersupply cable must be capable of handling the current requiredto operate the 1.95kW compressor circuit of the heat pump.Note: Please refer to the AS/NZS 3008 standard for the currentcarrying capacity of the cables to be used to ensure that theyare capable of handling the current draw of the heat pump inthe conditions that they are to be installed in.When the cables are run externally, they are to be installedin conduit in order to provide mechanical protection. Therecommended size of the conduit to the heat pump is 25mmdue to the number and size of the cables required to connectto the hot water system. A junction box or tee piece will needto be installed in order for one conduit to go to the heat pumpand one to the storage tank. The storage tank has provisionfor a 20mm conduit adapter and a 25mm to 20mm reducermay need to be installed at the junction box or tee piece. It isrecommended that an isolator be installed that can disconnecteach power supply to the heat pump simultaneously, to assistin maintenance and shut down of the hot water system, thishowever, is not mandatory.Depending on the wiring configuration, two or three cables willbe wired to the heat pump. The power supply cable(s) will berun from the switchboard to the heat pump whilst the storagetank heater cable will be run between the storage tank and theheat pump. All cables will need to pass through a junction box,tee piece or isolator in order to branch off to their separatelocations. If this heat pump hot water system is replacing anexisting electric hot water system, a power supply cable mayalready be available for use. An additional active wire may needto be run from the switchboard as required in order to give theheat pump a continuous or an off-peak power supply.For safety reasons it is recommended that the wiring of theheat pump and storage tank be completed first before thecables are wired to the switchboard. If you are replacing anexisting electric hot water system and re-using the existingcable, ensure that the power supply to this cable is isolated ordisconnected at the switchboard.Wiring the heat pumpAll cables are to be passed through the cable clamp insidethe terminal box and the clamp securely fastened so that ifthe conduit or cables are pulled, no stress is placed on theterminal connections.For safety reasons, all earths are to be connected first andwired to the G terminal.The continuous power supply input and the storage tankheater output cables must both be capable of handling thecurrent draw of the 3.6kW element. The active wire of thecontinuous supply input must be wired to the “HL” terminaland the neutral wire to the HN terminal.The active wire of the storage tank heater output cable is to bewired to the L1 terminal and the neutral wire to theN1 terminal.Electrical connection***XP10XS10T5 XT2redredbluewhiteblackblacktemp sensorin water tankplease connect with theattached T5 temp. sensorFor installation on continuous onlyphase, install jumper leads betweencompressor supply input andcontinuous supply input terminalsas per diagram.N2 compressor circuit supply input 220-240V~ 50HzL2 connect to off-peak or continuous supplyG common earth terminalHN continuous supply inputHL 220-240V~ 50HzN1 heater line outputL114 electrical connection Kelvinator heat pump hot water systems |
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