Daikin RXS15LVJU Installation Manual
R410a split series
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Also See for RXS15LVJU:
- Service manual (414 pages) ,
- Removal procedure (36 pages) ,
- Engineering data (206 pages)
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Summary of Contents for Daikin RXS15LVJU
- Page 1 INSTALLATION MANUAL R410A Split Series Installation manual English R410A Split series Manuel dinstallation Français Série split R410A Manual de instalación Español Serie Split R410A Models RXS15LVJU RXS18LVJU...
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Page 2: Safety Precautions
Safety Precautions • Read these Safety Precautions carefully to ensure correct installation. • This manual classifies the precautions into DANGER, WARNING and CAUTION. Be sure to follow all the precautions below: they are all important for ensuring safety. DANGER ..Indicates an imminently hazardous situation which, if not avoided, will result in death or serious injury. WARNING ..Failure to follow any of WARNING is likely to result in such grave consequences as death or serious injury. - Page 3 Safety Precautions WARNING • After connecting all wires be sure to shape the cables so that they do not put undue stress on the electrical covers, panels or terminals. Install covers over the wires. Incomplete cover installation may cause terminal overheating, electrical shock, fire or equipment damage. • When installing or relocating the system, be sure to keep the refrigerant circuit free from all substances other than the specified refrigerant (R410A), such as air. (Any presence of air or other foreign substance in the refrigerant circuit causes an abnormal pressure rise which may result in rupture, resulting in injury.) • During pump-down, stop the compressor before removing the refrigerant piping. If the compressor is still running and the stop valve is open during pump-down, air will be sucked in when the refrigerant piping is removed, causing abnormally high pressure which could lead to equipment damage or and personal injury. • During installation, attach the refrigerant piping securely before running the compressor. If the refrigerant pipes are not attached and the stop valve is open during pump-down, air will be sucked in when the compressor is run, causing abnormally high pressure which could lead to equipment damage and personal injury. • Be sure to install a ground fault circuit interrupter breaker. Failure to install a ground fault circuit interrupter breaker may result in electrically shocks, or fire personal injury. CAUTION • Do not install the air conditioner where gas leakage would be exposed to open flames. If the gas leaks and builds up around the unit, it may catch fire. • Establish drain piping according to the instructions of this manual. Inadequate piping may cause water damage. • Tighten the flare nut according to the specified torque. A torque wrench should be used. If the flare nut is tightened too much, the flare nut may crack over time and cause refrigerant leakage. • Do not touch the heat exchanger fins. Improper handling may result in injury. • Be very careful about product transportation. Some products use PP bands for packaging. Do not use any PP bands for a means of transportation. It is dangerous. • Make sure to provide for adequate measures in order to prevent that the outdoor unit be used as a shelter by small animals. Small animals making contact with electrical parts can cause malfunctions, smoke or fire. Please instruct the customer to keep the area around the unit clean. • The temperature of refrigerant circuit will be high, please keep the inter-unit wire away from copper pipes that are not thermally insulated. • Electrical work must be performed in accordance with the NEC/CEC by authorized personnel only. Accessories Accessories supplied with the outdoor unit: Drain plug Installation manual The drain plug is located in the bottom of the packing case.
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Page 4: Precautions For Selecting The Location
Precautions for Selecting the Location 1) Choose a place solid enough to bear the weight and vibration of the unit, where the operation sounds will not be amplified. 2) Choose a location where the hot air discharged from the unit or the operation sounds will not disturb the neighbors of the user. 3) Avoid installing near bedrooms so that operation sounds will not be a problem. 4) There must be sufficient space 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 10ft (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 10ft (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 anything under the unit 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 temperature, be sure to follow the instructions described below. Construct a large canopy. • To prevent exposure to wind, install the outdoor unit with its suction Construct a pedestal. side facing the wall. • Never install the outdoor unit at a site where the suction side may be exposed directly to wind. Install the unit high enough off the • To prevent exposure to wind, it is recommended to install a baffle ground to prevent burying in snow. -
Page 5: Outdoor Unit Installation Drawings
Outdoor Unit Installation Drawings Max. allowable piping length 98.4ft (30m) Min. allowable piping length 4.92ft (1.5m) Max. allowable piping height 65.6ft (20m) Additional refrigerant required for refrigerant 0.21oz/ft (20g/m) pipe exceeding 32.8ft (10m) in length. Gas pipe O.D. 1/2 inch (12.7mm) Wrap the insulation pipe with the finishing Liquid pipe... -
Page 6: 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 47-1/4 inch (1200mm) or less. Wall facing one side Walls facing two sides More than More than 3-15/16 (100) 13-3/4 (350) More than 13-3/4 (350) More than 3-15/16 (100) 47-1/4 (1200) or less More than More than 1-15/16 (50) 1-15/16 (50) Side view Top view Walls facing three sides... -
Page 7: Refrigerant Piping
Outdoor Unit Installation Flaring the pipe end (Cut exactly at 1) Cut the pipe end with a pipe cutter. Remove burrs. right angles.) 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 8: Purging Air And Checking Gas Leakage
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 leakage. • If using additional refrigerant, perform air purging from the refrigerant pipes Compound Pressure meter and indoor unit using a vacuum pump, then charge additional refrigerant. pressure gauge • Use a hexagonal wrench (3/16 inch (4mm)) to operate the stop valve rod. Gauge • All refrigerant pipe joints should be tightened with a torque wrench at the manifold specified tightening torque. High-pressure Liquid valve Valve caps stop Low-pressure valve valve Charging hoses stop Service port Vacuum pump valve 1) Connect projection side of charging hose (which comes from gauge manifold) to gas stop valve’s service port. -
Page 9: Refrigerant Piping Work
Outdoor Unit Installation 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 Turn the cylinder upside-down Stand the cylinder upright when when filling. -
Page 10: 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 2) Carry out forced cooling operation. 3) After 5 to 10 minutes, close the liquid stop valve with a Close hexagonal wrench. 4) After 2 to 3 minutes, close the gas stop valve and stop forced cooling operation. Liquid stop valve Forced cooling operation Gas stop valve Valve cap ■... - Page 11 Wiring <Work before wiring> A protection plate is fixed for protection from the high-voltage section. Before staring wiring work, dismount the protection plate by removing the 2 screws and dismount the conduit mounting cover by removing the 2 screws. <Method of mounting conduit> 1) Pass wires through the conduit and secure them with a lock nut. 2) After completing the work, reattach the conduit mounting cover and the protection plate to its original position. Power supply Protection plate terminal block Shape wires so that the protection plate and conduit mounting plate fit securely. Screw Lock nut Conduit mounting plate Conduit 1/2 inch (21.3mm) Observe the notes mentioned following when wiring to the power supply terminal board. Precautions to be taken for power supply wiring.
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Page 12: Facility Setting (Cooling At Low Outdoor Temperature)
Facility Setting (cooling at low outdoor temperature) This function is designed for facilities such as equipment or computer rooms. It is never to be used in a residence or office where people occupy the space. ■ Cutting jumper 6 (J6) on the circuit board will expand the operation range down to 14°F (–10°C). However it will stop if the outdoor temperature drops below –0.4°F (–18°C) and start back up once the temperature rises again. 1) Remove the 3 screws on the side and remove the top plate of the outdoor unit. 2) Remove the drip proof cover. -
Page 13: 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 (78°F to 82°F (26°C to 28°C) in cooling mode, 68°F to 75°F (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 fin 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 grounded. - Page 14 Two-dimensional bar code is a code for manufacturing. 3P296778-1 M11B087 (1111) HT...