Related Manuals for Fujitsu AOYG 14 KBTA2
Summary of Contents for Fujitsu AOYG 14 KBTA2
- Page 1 Installatiehandleiding MULTISPLIT-2 AIRCOHEATER Binnenunit AOYG 14 KBTA2 AOYG 18 KBTA2 Voor gebruik door de professional. Te bewaren door de gebruiker voor toekomstig gebruik.
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Page 2: Table Of Contents
AIR CONDITIONER INSTALLATION MANUAL OUTDOOR UNIT PART No. 9319205281-04 [Original instructions] For authorized service personnel only. WARNING • Installation of this product must be done by experienced service technicians or professional installers only in accordance with this manual. Installation by nonprofes- sional or improper installation of the product may cause serious accidents such as injury, water leakage, electric shock, or fire. If the product is installed in disregard of the instructions in this manual, it will void the manufacturer’s warranty. • To avoid getting an electric shock, never touch the electrical components soon after the power supply has been turned off. After turning off the power, always wait 10 minutes or more before you touch the electrical components. • Do not turn on the power until all work has been completed. Turning on the power before the work is completed can cause serious accidents such as electric shock or fire. • If refrigerant leaks while work is being carried out, ventilate the area. If the refrigerant comes in contact with a flame, it produces a toxic gas. • Installation must be performed in accordance with regulations, codes, or standards for electrical wiring and equipment in each country, region, or the installation place. • Do not use this equipment with air or any other unspecified refrigerant in the refriger- Contents ant lines. Excess pressure can cause a rupture. 1. SAFETY PRECAUTIONS ............... 1 • During installation, make sure that the refrigerant pipe is attached firmly before you run the compressor. 2. PRODUCT SPECIFICATION ..............3 Do not operate the compressor under the condition of refrigerant piping not attached 2.1. Installation tools . - Page 3 Precautions for using R32 refrigerant 2-7. Checks to the refrigeration equipment • Where electrical components are being changed, they shall be fit for the purpose The basic installation work procedures are the same as conventional refrigerant (R410A, and to the correct specification. R22) models. • At all times the manufacturer’s maintenance and service guidelines shall be followed. However, pay careful attention to the following points: • If in doubt consult the manufacturer’s technical department for assistance. • The following checks shall be applied to installations using flammable refrigerants. - T he charge size is in accordance with the room size within which the refrigerant WARNING containing parts are installed. • Since the working pressure is 1.6 times higher than that of refrigerant R22 models, - T he ventilation machinery and outlets are operating adequately and are not some of the piping and installation and service tools are special. (See “2.1. Installation obstructed. tools”.) - I f an indirect refrigerating circuit is being used, the secondary circuit shall be Especially, when replacing a refrigerant R22 model with a new refrigerant R32 model, checked for the presence of refrigerant. always replace the conventional piping and flare nuts with the R32 and R410A piping - M arking to the equipment continues to be visible and legible. Markings and signs and flare nuts on the outdoor unit side.
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Page 4: Product Specification
CAUTION 12. Recovery • When removing refrigerant from a system, either for servicing or decommissioning, 8. Removal and evacuation it is recommended good practice that all refrigerants are removed safely. • When breaking into the refrigerant circuit to make repairs – or for any other • When transferring refrigerant into cylinders, ensure that only appropriate refrigerant purpose –conventional procedures shall be used. recovery cylinders are employed. However, it is important that best practice is followed since flammability is a • Ensure that the correct number of cylinders for holding the total system charge are consideration. available. The following procedure shall be adhered to: • All cylinders to be used are designated for the recovered refrigerant and labelled • remove refrigerant for that refrigerant (i.e. special cylinders for the recovery of refrigerant). • purge the circuit with inert gas • Cylinders shall be complete with pressure relief valve and associated shut-off • evacuate valves in good working order. • purge again with inert gas • Empty recovery cylinders are evacuated and, if possible, cooled before recovery • open the circuit by cutting or brazing occurs. • The refrigerant charge shall be recovered into the correct recovery cylinders. • The recovery equipment shall be in good working order with a set of instructions • The system shall be “flushed” with OFN to render the unit safe. -
Page 5: Accessories
Layout example for the indoor units and outdoor unit. 2.2. Accessories OUTDOOR UNIT : 18 TYPE Power Source Power cable WARNING Unit B 230V~50Hz 7-14 • For installation purposes, be sure to use the parts supplied by the manufacturer or Circuit breaker Connection other prescribed parts. The use of non-prescribed parts can cause serious accidents cable such as the unit falling, water leakage, electric shock, or fire. • The following installation parts are supplied. Use them as required. • Keep the Installation Manual in a safe place and do not discard any other accessories until the installation work has been completed. Outdoor unit Name and shape Q’ty Description Refrigerant pipe Installation Manual This manual Unit A 7-14 Indoor unit ● Connectable indoor unit capacity type CAUTION • The total capacity of the indoor units connected must be between 14,000 and 26,000BTU. -
Page 6: Electrical Requirements
● Connectable indoor unit capacity type ● Heat insulation around connection pipes requirements CAUTION CAUTION • The total capacity of the indoor units connected must be between 14,000 and • Install heat insulation around both the gas and liquid pipes. Failure to do so may 21,000BTU. cause water leaks. • Be sure to check the connecting pattern in technical manual when installed since • Use heat insulation with heat resistance above 120 °C. (Reverse cycle model only) connection pattern is specified in it. Operation cannot be guaranteed if connected by • In addition, if the humidity level at the installation location of the refrigerant piping is a method not specified in it. It can cause the fault of the product. expected to exceed 70%, install heat insulation around the refrigerant piping. If the • Please connect to both of indoor unit and outdoor unit certainly. expected humidity level is 70-80%, use heat insulation that is 15 mm or thicker and if the expected humidity exceeds 80%, use heat insulation that is 20 mm or thicker. • If heat insulation is used that is not as thick as specified, condensation may form on • To install an indoor unit, refer to the installation Manual included with the indoor unit. the surface of the insulation. Outdoor port Connectable model name • In addition, use heat insulation with heat conductivity of 0.045 W/(m·K) or less 7-12... -
Page 7: Additional Charge Amount
CAUTION 2.5. Additional charge amount • Install the indoor unit, outdoor unit, power supply cable, connection cable, and remote controller cable at least 1 m away from a television or radio receivers. The purpose of CAUTION this is to prevent TV reception interference or radio noise. (Even if they are installed more than 1 m apart, you could still receive noise under some signal conditions.) • When adding refrigerant, add the refrigerant from the charging port at the completion of work. Branch switch and circuit breaker Refrigerant suitable for a total piping length of 20 m is charged in the outdoor unit at the 1 m or more factory. 1m or more When the piping is longer than 20 m, additional charging is necessary. For the additional amount, see the table below. Branch switch and 20 m 30 m Rate Total piping length circuit breaker None 200 g 20 g/m 14 type Additional refrigerant None 200 g 20 g/m 18 type • If children under 10 years old may approach the unit, take preventive measures so that they cannot reach the unit. -
Page 8: Mounting The Unit
When an obstruction in the upper space (Unit : mm) ■ Outdoor unit installation When the upper space is open (Unit : mm) (1) Obstacles at rear and above • Up to 3 units can be installed side by side. (1) Obstacles at rear only (2) Obstacles at rear and sides • When 4 units or more are arranged in a line, provide the space as shown below. Max. 300 100 or more 100 or more 100 or more 1,500 or more 250 or more (3) Obstacles at front (4) Obstacles at front and rear 1,500 or more 200 or more (Unit : mm) ■ Outdoor units installation multi-row 100 or more 600 or more (1) Single parallel unit arrangement... -
Page 9: Removing And Replacing Part
Bottom side Bottom side 580 mm Drain pipe mounting place Since the drain water flows out of the outdoor unit during heating operation, install the drain pipe and connect it to a commercial 16 mm hose. (Reverse cycle model only) Fix securely with bolts on a solid block. (Use 4 sets of commercially available M10 bolt, When installing the drain pipe, plug all the holes other than the drain pipe mounting hole nut and washer.) in the bottom of the outdoor unit with putty so there is no water leakage. (Reverse cycle model only) Bolt Drain pipe mounting hole Nut Block Base of the outdoor unit Drain pipe CAUTION 3.5. Pipe installation • Do not install the outdoor unit in two-stage where the drain water could freeze. Oth- erwise the drainage from the upper unit may form ice and cause a malfunction of the CAUTION lower unit. • When the outdoor temperature is 0 °C or less, do not use the accessory drain pipe. • Do not use mineral oil on a flared part. Prevent mineral oil from getting into the sys- If the drain pipe is used, the drain water in the pipe may freeze in extremely cold tem as this would reduce the lifetime of the units. climate. • While welding the pipes, be sure to blow dry nitrogen gas through them. • If the unit is installed in a region that is exposed to • The maximum lengths of this product are shown in the table. If the units are further high winds, freezing conditions, freezing rain, snow apart than this, correct operation cannot be guaranteed. -
Page 10: Sealing Test
■ Flare connection 3.6. Sealing test CAUTION • Be sure to install the pipe against the port on the indoor unit and the outdoor unit WARNING correctly. If the centering is improper, the flare nut cannot be tightened smoothly. • Before operating the compressor, install the pipes and securely connect them. If the flare nut is forced to turn, the threads will be damaged. Otherwise, if the pipes are not installed and if the valves are open when the compres- • Do not remove the flare nut from the outdoor unit pipe until immediately before sor operates, air could enter the refrigeration cycle. If this happens, the pressure in the connecting the connection pipe. refrigeration cycle will become abnormally high and cause damage or injury. • After installing the piping, make sure that the connection pipes do not touch the • After the installation, make sure there is no refrigerant leakage. If the refrigerant compressor or outer panel. If the pipes touch the compressor or outer panel, they will leaks into the room and becomes exposed to a source of fire such as a fan heater, vibrate and produce noise. stove, or burner, it produces a toxic gas. • Do not subject the pipes to strong shocks during the sealing test. It can rupture the (1) Detach the caps and plugs from the pipes. pipes and cause serious injury. (2) Center the pipe against the port on the outdoor unit, and then turn the flare nut by hand. CAUTION • Do not block the walls and the ceiling until the sealing test and the charging of the To prevent gas leakage, coat the flare refrigerant gas have been completed. surface with alkylbenzene oil (HAB). -
Page 11: Additional Charging
(6) Discharge the nitrogen gas and starting removing the gas with a vacuum pump. Charge the refrigerant following the instruction in “2.5. Additional charge amount”. (7) Open the valve of the gauge manifold fully. (8) Operate the vacuum pump and start pump down. CAUTION (9) Check that the compound pressure gauge reads -0.1 MPa (76 cmHg), operate the • After vacuuming the system, add refrigerant. vacuum pump for 30 minutes or more in each valve. • Do not reuse recovered refrigerant. (10) At the end of pump down, close the valve of the gauge manifold fully and stop the • When charging the refrigerant R32, always use an electronic scales for refrigerant vacuum pump. charging (to measure the refrigerant by weight). Adding more refrigerant than the (11) Disconnect the charge hose from the 3-way valve charging port. specified amount will cause a malfunction. (12) Remove the blank caps, and fully open the spindles of the 2-way and 3-way valves • When charging the refrigerant, take into account the slight change in the composi- with a hexagon wrench. tion of the gas and liquid phases, and always charge from the liquid phase side [torque: 6 to 7 N·m (60 to 70 kgf·cm)]. whose composition is stable. (13) Tighten the blank caps and charging port cap of the 2-way valve and 3-way valve to • Check if the steel cylinder has a siphon installed or not before filling. (There is an the specified torque. indication “with siphon for filling liquid” on the steel cylinder.) Filling method for cylinder with siphon Tightening torque 6.35 mm (1/4 in.) 20 to 25 N·m (200 to 250 kgf·cm) - Page 12 ■ Connection diagrams CAUTION • The primary power supply capacity is for the air conditioner itself, and does not include the concurrent use of other devices. Power cable Connection cable • If the electrical power is inadequate, contact your electric power company. • Install a breaker in a location that is not exposed to high temperatures. 230V If the temperature surrounding the breaker is too high, the amperage at which the 50 Hz · 1ø breaker cuts out may decrease. POWER • When using an earth leakage breaker that has been designed solely for ground fault Connection cable protection, be sure to install a fuse-equipped switch or circuit breaker. Earth (Ground) • This system uses an inverter, which means that it must be used an earth leakage breaker that can handle harmonics in order to prevent malfunctioning of the earth leakage breaker itself. • Do not use crossover power supply wiring for the outdoor unit. ■ Outdoor unit • If the temperature surrounding the breaker is too high, the amperage at which the breaker cuts out may decrease. • When the electrical switchboard is installed outdoors, place it under lock and key so that it is not easily accessible. • Start wiring work after closing branch switch and over current breaker. (1) Switch cover removal • Transmission cable between indoor unit and outdoor unit is 230 V.
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Page 13: Test Run
4. TEST RUN The test run method may be different for each indoor unit that is connected. Refer to the installation Manual included with each indoor unit. CAUTION • Always turn on the power 12 hours prior to the start of the operation in order to ensure compressor protection. 4.1. Make a TEST RUN in accordance with the installation Manual for the indoor unit 4. 1. 1. CHECK ITEMS ● INDOOR UNIT (1) Is operation of each button on the remote controller normal? (2) Does each lamp light normally? (3) Do the air flow-direction louver operate normally? (4) Is the drain normal? (5) Is there any abnormal noise and vibration during operation? ●...