Daikin RXYQ72TTJU Installation Manual

Also see for RXYQ120TTJU: Operation manual Engineering data

Contents

Daikin RXYQ72TTJU Installation Manual Manual pdf 21 page image

183P362438-1B E nglish8 3 2 How to use the stop valveOpening the stop valve1 Remove the valve cover.2 Insert a hexagon wrench into the stop valve and turn the stop valvecounterclockwise.3 When the stop valve cannot be turned any further, stop turning.The valve is now open.To fully open the f3/4 or f1 gas line stop valve, turn the hexagonalwrench until a torque between 19.9-24.3 ft•lbf (27-33 N•m) is achieved.Inadequate torque may cause leakage of refrigerant and breakage ofthe stop valve cap.1234NOTEPay attention that mentioned torque range is applicable for openingf3/4 and f1 gas line stop valves only.Closing the stop valve1 Remove the valve cover.2 Insert a hexagon wrench into the stop valve and turn the stop valveclockwise.3 When the stop valve cannot be turned any further, stop turning.The valve is now closed.Closing directionLiquid side Gas side8 3 3 Cautions on handling the stop valve cover• The stop valve cover is sealed where indicated by the arrow. Takecare not to damage it.• After handling the stop valve, make sure to tighten the stop valvecover securely. For the tightening torque, refer to the table below.• Check for refrigerant leaks after tightening the stop valve cover.8 3 4 Cautions on handling the service port• Always use a charge hose equipped with a valve depressor pin,since the service port is a Schrader type valve.• After handling the service port, make sure to tighten the serviceport cover securely. For the tightening torque, refer to the tablebelow.• Check for refrigerant leaks after tightening the service port cover.8 3 5 Tightening torquesStopvalvesizeTightening torque (Turn clockwise to close)Shaft (valve body) Cap(valve cover) Service portf3/8 3.98-4.87 ft•lbf(5.4-6.6 N•m) Hexagonalwrench4 mm9.95-12.17 ft•lbf(13.5-16.5 N•m) 8.48-10.3ft•lbf(11.5-13.9N•m)f1/2 5.97-7.30 ft•lbf(8.1-9.9 N•m)13.3-16.2 ft•lbf(18.0-22.0 N•m)f3/4 19.9-24.3 ft•lbf(27.0-33.0 N•m)Hexagonalwrench8 mm16.6-20.3 ft•lbf(22.5-27.5 N•m)f19 Field wiringNOTE• All field wiring and components must be installed by a licensed elec-trician and must comply with relevant local and national regulations.• Be sure to use a dedicated power circuit. Never use a power supplyshared by another appliance.• Never install a phase-advancing capacitor. As this unit is equippedwith an inverter, installing a phase-advancing capacitor will not onlydeteriorate power factor improvement effect, but also may causecapacitor 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 local and nationalregulations.• This machine includes an inverter device. Connect ground andleave charge to eliminate the impact on other devices by reducingnoise generated from the inverter device and to prevent leaked cur-rent from being charged in the outer shell of the product.• Do not connect the ground wire to gas pipes, sewage pipes, light-ning rods, or telephone ground wires.Gas pipes can explode or catch fire if there is a gas leak.Sewage pipes: no grounding effect is possible if hard plastic pipingis used.Telephone ground wires and lightning rods are dangerous whenstruck by lightning due to abnormal rise in electrical potential in thegrounding.• This equipment can be installed with a Ground-Fault Circuit Breaker(GFCI). Although this is a recognized measure for additional protec-tion, with the grounding system in North America, a dedicated GFCIis not necessary.• Electrical wiring must be done in accordance with the wiring dia-grams and the description herein.• Do not operate until refrigerant piping work is completed. Operatingthe unit before completing piping work could cause the compressorto break.• Never remove a thermistor, sensor or similar parts when connectingpower wiring and transmission wiring.(If operated with a thermistor, sensor or similar parts removed, thecompressor may be broken down.)• Never connect the power supply in reverse-phase.The unit cannot operate normally in reverse-phase.If you connect in reverse-phase, replace 2 of the 3 phases.• Make sure the electrical imbalance ratio is no greater than 2%. If it islarger than this, the unit’s lifespan will be reduced.