Daikin RXS20K3V1B Installation Manual

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Service manual (131 pages)

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Page 1 Split-Baureihe R410A Manuel dinstallation Français Série split R410A Montagehandleiding Nederlands R410A Split-systeem Models Manual de instalación Español Serie Split R410A RXS20K3V1B RKS20J2V1B RXS25K3V1B RKS25J2V1B Manuale dinstallazione Italiano Serie Multiambienti R410A RXS20K2V1B RKS35J2V1B Εγχειρίδιο εγκατάστασης RXS25K2V1B Eλληνικά διαιρού ενης σειράς R410A RXS35K2V1B Manual de Instalação...
Page 2 3SB64564-12E...
Page 3 3SB65451-3...
Page 4 3SB65451-4...
Page 5 3SB65451-14D...
Page 6 3SB65451-18F...
Page 8: Safety Precautions
Safety Precautions • The precautions described herein are classified as WARNING and CAUTION. They both contain important informa- tion regarding safety. Be sure to observe all precautions without fail. • Meaning of WARNING and CAUTION notices WARNING ..Failure to follow these instructions properly may result in personal injury or loss of life. CAUTION ..Failure to observe these instructions properly may result in property damage or personal injury, which may be serious depending on the circumstances. • The safety marks shown in this manual have the following meanings: Be sure to follow the instructions.
Page 9: Precautions For Selecting The Location
Accessories Accessories supplied with the outdoor unit: Installation manual Refrigerant charge label Drain plug (heat pump models) There is on the bottom packing case. Multilingual fluorinated greenhouse gases label Precautions for Selecting the Location 1) Choose a place solid enough to bear the weight and vibration of the unit, where the operation noise will not be amplified. 2) Choose a location where the hot air discharged from the unit or the operation noise will not cause a nuisance to the neighbours of the user. 3) Avoid places near a bedroom and the like, so that the operation noise will cause no trouble. 4) There must be sufficient spaces for carrying the unit into and out of the site. 5) There must be sufficient space for air passage and no obstructions around the air inlet and the air outlet. 6) The site must be free from the possibility of flammable gas leakage in a nearby place. 7) Install units, power cords and inter-unit wire at least 3m away from television and radio sets. This is to prevent interference to images and sounds. (Noises may be heard even if they are more than 3m away depending on radio wave conditions.) 8) In coastal areas or other places with salty atmosphere of sulfate gas, corrosion may shorten the life of the air conditioner. 9) Since drain flows out of the outdoor unit, do not place under the unit anything which must be kept away from moisture. NOTE Cannot be installed hanging from ceiling or stacked. CAUTION When operating the air conditioner in a low outdoor ambient tempera- ture, be sure to follow the instructions described below. • To prevent exposure to wind, install the outdoor unit with its suction Construct a large canopy. side facing the wall. Construct a pedestal. • Never install the outdoor unit at a site where the suction side may be exposed directly to wind. • To prevent exposure to wind, it is recommended to install a baffle Install the unit high enough off the plate on the air discharge side of the outdoor unit.
Page 10: Outdoor Unit Installation Drawings
Outdoor Unit Installation Drawings Max. allowable piping length Min. allowable piping length 1.5m Max. allowable piping height Wrap the insulation pipe with Additional refrigerant the ﬁnishing tape from bottom 20g/m required for refrigerant pipe to top. exceeding 10m in length. Gas pipe O.D.
Page 11: Precautions On Installation
Installation Guidelines • Where a wall or other obstacle is in the path of outdoor unit’s inlet or outlet airflow, follow the installation guidelines below. • For any of the below installation patterns, the wall height on the outlet side should be 1200mm or less. Walls facing two sides Wall facing one side More than 50 More than 100 More than 150 Direction More of air than 100 1200 or less More than 50 More than 50 Top view Side view Walls facing three sides More than 150 More than 300...
Page 12: Refrigerant Piping Work
Outdoor Unit Installation Flaring the pipe end (Cut exactly at 1) Cut the pipe end with a pipe cutter. right angles.) Remove burrs. 2) Remove burrs with the cut surface facing Flaring downward so that the chips do not enter the pipe. Set exactly at the position shown below. 3) Put the flare nut on the pipe. Flare tool for R410A Conventional ﬂare tool 4) Flare the pipe. Clutch-type Clutch-type (Rigid-type) Wing-nut type (Imperial-type) 5) Check that the flaring is properly made.
Page 13 4-1 Caution on pipe handling 1) Protect the open end of the pipe against dust and moisture. Wall Be sure to 2) All pipe bends should be as gentle as possible. Use a pipe bender place a cap. for bending. Rain If no ﬂare cap is available, cover the ﬂare mouth with tape to keep dirt or water out. 4-2 Selection of copper and heat insulation materials When using commercial copper pipes and fittings, observe the following: 1) Insulation material: Polyethylene foam Heat transfer rate: 0.041 to 0.052W/mK (0.035 to 0.045kcal/mh°C)
Page 14 Outdoor Unit Installation Purging air and checking gas leakage WARNING • Do not mix any substance other than the specified refrigerant (R410A) into the refrigeration cycle. • When refrigerant gas leaks occur, ventilate the room as soon and as much as possible. • R410A, as well as other refrigerants, should always be recovered and never be released directly into the environment. • Use a vacuum pump for R410A exclusively. Using the same vacuum pump for different refrigerants may damage the vacuum pump or the unit. • When piping work is completed, it is necessary to purge the air and check for gas Compound Pressure pressure gauge metre leakage. Gauge • If using additional refrigerant, perform air purging from the refrigerant pipes and manifold indoor unit using a vacuum pump, then charge additional refrigerant. Liquid stop • Use a hexagonal wrench (4mm) to operate the stop valve rod. valve Valve caps High- • All refrigerant pipe joints should be tightened with a torque wrench at the specified Low-pressure pressure valve tightening torque. valve Charging hoses Vacuum pump Service port Gas stop valve...
Page 15: Standby Electricity Saving
Refilling the refrigerant Check the type of refrigerant to be used on the machine nameplate. Precautions when adding R410A Fill from the gas pipe in liquid form. It is a mixed refrigerant, so adding it in gas form may cause the refrigerant composition to change, preventing normal operation. 1) Before filling, check whether the cylinder has a siphon attached or not. (It should have something like “liquid filling siphon attached” displayed on it.) Filling a cylinder with an attached siphon Filling other cylinders Stand the cylinder upright when ﬁlling. Turn the cylinder upside-down when ﬁlling. There is a siphon pipe inside, so the cylinder need not be upside-down to ﬁll with liquid.
Page 16: Pump Down Operation
Pump Down Operation In order to protect the environment, be sure to pump down when relocating or disposing of the unit. 1) Remove the valve cap from liquid stop valve and gas stop valve. Hexagonal wrench Liquid 2) Carry out forced cooling operation. stop valve 3) After 5 to 10 minutes, close the liquid stop valve with a hexagonal wrench. Close 4) After 2 to 3 minutes, close the gas stop valve and stop forced cooling operation. stop valve Valve cap Service port Forced cooling operation ■...
Page 17 Wiring WARNING • Do not use tapped wires, stranded wires, extension cords, or starburst connections, as they may cause overheating, electrical shock, or fire. • Do not use locally purchased electrical parts inside the product. (Do not branch the power for the drain pump, etc., from the terminal block.) Doing so may cause electric shock or fire. • Be sure to install an earth leak detector. (One that can handle higher harmonics.) (This unit uses an inverter, which means that it must be used an earth leak detector capable handling harmonics in order to prevent malfunctioning of the earth leak detector itself.) • Use an all-pole disconnection type breaker with at least 3mm between the contact point gaps. • Do not connect the power wire to the indoor unit. Doing so may cause electric shock or fire. • Do not turn on the safety breaker until all work is completed. 1) Strip the insulation from the wire (20mm). Firmly ﬁx the wires with Outdoor unit the terminal screws. 2) Connect the connection wires between the Power supply wire Inter-unit wire 1 2 3 indoor and outdoor units so that the terminal 3-core 2.5mm² or more 4-core 1.5mm² or more numbers match. Tighten the terminal screws H05RN H05RN...
Page 18: Trial Operation And Testing
Trial Operation and Testing Trial operation and testing 1-1 Measure the supply voltage and make sure that it falls in the specified range. 1-2 Trial operation should be carried out in either cooling or heating mode. • In cooling mode, select the lowest programmable temperature; in heating mode, select the highest programmable temperature. 1) Trial operation may be disabled in either mode depending on the room temperature. 2) After trial operation is complete, set the temperature to a normal level (26°C to 28°C in cooling mode, 20°C to 24°C in heating mode). 3) For protection, the system disables restart operation for 3 minutes after it is turned off. 1-3 Carry out the test operation in accordance with the operation manual to ensure that all functions and parts, such as louver movement, are working properly. • The air conditioner requires a small amount of power in its standby mode. If the system is not to be used for some time after installation, shut off the circuit breaker to eliminate unnecessary power consumption. • If the circuit breaker trips to shut off the power to the air conditioner, the system will restore the original operation mode when the circuit breaker is opened again. Test items Test items Symptom Check Indoor and outdoor units are installed properly on solid bases. Fall, vibration, noise Incomplete cooling/heating No refrigerant gas leaks. function Refrigerant gas and liquid pipes and indoor drain hose extension are Water leakage thermally insulated. Draining line is properly installed. Water leakage System is properly earthed. Electrical leakage The specified wires are used for inter-unit wiring. Inoperative or burn damage Incomplete cooling/heating Indoor or outdoor unit’s air inlet or outlet has clear path of air.
Page 19 Two-dimensional bar code is a code for manufacturing. 3P297037-2D M12B067A (1210) HT...

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Daikin RXS20K3V1B Installation Manual

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