Daikin REYQ8PY1B Installation Manual

Also see for VRV III REYQ10PY1B: Operation manual Service manual

Contents

Daikin REYQ8PY1B Installation Manual Manual pdf 15 page image

9 English7. FIELD WIRINGCaution• All field wiring and components must be installed by a licensedelectrician and must comply with relevant local and nationalregulations.• Be sure to use a dedicated power circuit. Never use a power sup-ply shared 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 andnational regulations.• This machine includes an inverter device. Connect earth andleave charge to eliminate the impact on other devices by reducingnoise generated from the inverter device and to prevent leakedcurrent from being charged in the outer hull 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 pip-ing is used.Telephone ground wires and lightning rods : dangerous whenstruck by lightning due to abnormal rise in electrical potential inthe grounding.• Be sure to install an earth leakage circuit breaker.This unit uses an inverter, so install the earth leakage circuitbreaker that be capable of handling high harmonics in order toprevent malfunctioning of the earth leakage circuit breaker itself.• Earth leakage circuit breaker which are especially for protectingground-faults should be used in conjunction with main switch orfuse for use with wiring.Note• 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.(If operated before complete the piping work, the compressor maybe broken down.)• Never remove thermistor, sensor or etc. when connecting powerwiring and transmission wiring.(If operated with thermistor, sensor or etc. removed, the compres-sor may be broken down.)• This product have reversed phase protection detector that onlyworks when the power is turned on. If there exists black out or thepower goes on and off which the product is operating, attach areversed phase protection circuit locally. Running the product inreversed phase may break the compressor and other parts.• Attach the power wire securely. Introducing power with a missingN-phase or with a mistaken N-phase will break the unit.• Never connect the power supply in reversed phase.The unit can not operate normally in reversed phase.If you connect in reversed phase, replace two of the three phases.• Make sure the electrical unbalance ratio is no greater than 2%. Ifit is larger than this, the unit’s lifespan will be reduced.If the ratio exceeds 4%, the unit will shut down and an malfunctioncode will be displayed on the indoor remote controller.• Connect the wire securely using designated wire and fix it withattached clamp without applying external pressure on the termi-nal parts (terminal for power wiring, terminal for transmission wir-ing and earth terminal).• If there exists the possibility of reversed phase, lose phase,momentary blackout or the power goes on and off while the prod-uct is operating, attach a reversed phase protection circuit locally.Running the product in reversed phase may break the compres-sor and other parts.7-1 Power circuit, safety device and cablerequirements• A power circuit (see the following table) must be provided for con-nection of the unit. This circuit must be protected with the requiredsafety devices, i.e. a main switch, a slow blow fuse on each phaseand an earth leakage circuit breaker.• When using residual current operated circuit breakers, be sure touse a high-speed type (0.1 second or less) 200mA rated residualoperating current.• Use copper conductors only.• Use insulated wire for the power cord.• Select the power supply cable type and size in accordance withrelevant local and national regulations.• Specifications for local wiring are in compliance with IEC60245.• Use wire type H05VV when protected pipes are used.Use wire type H07RN-F when protected pipes are not used.7-2 Wiring Connection Example for Whole System(Refer to figure 17)1. Power supply2. Main switch3. Earth leakage circuit breaker4. Fuse5. Outdoor unit6. COOL/HEAT selector7. Remote controller8. Indoor unit9. BS unitNote• Make sure the weak electric wiring (i.e. for the remote controller,between units, etc.) and the power wiring do not pass near eachother, keeping them at least 50 mm apart.Proximity may cause electrical interference, malfunctions, andbreakage.• Be sure to connect the power wiring to the power wiring terminalblock and secure it as described in “7-5 Power Wiring Connec-tion Procedure”.• Transmission wiring should be secured as described in “7-4Transmission Wiring Connection Procedure”.• Secure wiring with clamp such as insulation lock ties to avoid con-tact with piping.• Shape the wires to prevent the structure such as the EL. COMPO.BOX lid deforming. And close the cover firmly.• All field wiring is to be procured on site.7-3 Leading wire Procedure• The power wiring and ground wiring are passed out from thepower wiring hole on the sides, the front (knock hole) or the bot-tom frame (knock hole) .• The transmission wiring is passed out from the wiring hole (knockhole) on the front of the unit or from a piping hole.(Refer to figure 18)1. Electrical wiring diagram2. On the back of the EL .COMPO. BOX (1) lid.3. Power wiring, ground wiring (inside conduit)4. (When the wiring is routed out through the side panel.)5. Transmission wiring6. Pipe opening7. Conduit8. For power wiring and ground wiring9. Through cover10. Cut off the shaded zones before use.11. Burr12. Knockout hole13. For transmission wiring14. EL. COMPO. BOX (1)15. EL. COMPO. BOX (2)Note• Open the knock holes with a hammer or the like.• After knocking out the holes, we recommend you remove anyburrs and paint them using the repair paint to prevent rusting.(Refer to figure 18)• When passing wiring through the knock holes, remove burrsaround the knock holes and protect the wiring with protectivetape. (Refer to figure 18)• If small animals might enter the unit, block off any gaps (hatchingparts in figure 18) with material (field supply).Phase andfrequency Voltage Minimumcircuit amp. Recom-mended fusesREYQ8PY1 φ 3, 50Hz 380-415V 17.1A 20AREYQ10PY1 φ 3, 50Hz 380-415V 22.1A 25AREYQ12PY1 φ 3, 50Hz 380-415V 22.3A 25AREYQ14PY1 φ 3, 50Hz 380-415V 32.8A 40AREYQ16PY1 φ 3, 50Hz 380-415V 33.0A 40A