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Fujitsu AOU48RLXFZ1 Installation Manual

Outdoor unit
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AIR CONDITIONER
OUTDOOR UNIT
INSTALLATION MANUAL
For authorized personnel only.
Contents
1. SAFETY PRECAUTIONS ................................. 2
2.2. Special tools for R410A .............................. 4
2.3. Accessories ............................................. 4
2.4. Optional parts .......................................... 5
2.5. Operating range ....................................... 5
2.6. System configuration ................................. 6
3.2. Drain installation ....................................... 8
3.3. Installation dimensions .............................. 8
3.4. Transportation of the unit ........................ 10
3.5. Installation of the unit .............................. 10
5.1. Opening a knockout hole ........................ 13
5.2. Separation tube connection ..................... 14
6.2. Knockout hole ....................................... 18
6.3. Electrical requirement .............................. 18
6.4. Unit wiring ............................................. 19
6.5. Wiring method ....................................... 20
6.6. Connecting of wiring .............................. 21
7.1. Sealing test .......................................... 22
7.2. Vaccum process .................................... 23
7.3. Additional charging ................................. 24
7.5. Installing insulation ................................. 26
7.6. Filling with putty .................................... 26
8.1. Field setting switches .............................. 27
8.2. Function settings .................................... 28
9.1. Check run ............................................. 30
9.2. TEST RUN .......................................... 33
10.1. Fitting cable (option parts) ........................ 35
10.2. External input ....................................... 35
10.3. External output ....................................... 37
11.1. Normal operation mode ........................... 38
11.2. Error display mode ................................. 38
PART No. 9379069342-02
.................. 25

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  Summary of Contents for Fujitsu AOU48RLXFZ1

  • Page 1: Table Of Contents

    AIR CONDITIONER OUTDOOR UNIT INSTALLATION MANUAL For authorized personnel only. Contents 6.4. Unit wiring ……………………………………… 19 1. SAFETY PRECAUTIONS …………………………… 2 6.5. Wiring method ………………………………… 20 2. ABOUT THE PRODUCT 6.6. Connecting of wiring ………………………… 21 2.1. Precautions for using R410A refrigerant ……… 4 7.
  • Page 2: Safety Precautions

    SAFETY PRECAUTIONS This installation manual describes how to install the outdoor unit only. To install the indoor unit, refer to the installation manual included with the indoor unit. IMPORTANT! Please Read Before Starting When Transporting This air conditioning system meets strict safety and operating standards. As the installer or service person, it is an important part of your job to Be careful when picking up and moving the indoor and outdoor units.
  • Page 3 DANGER Never touch electrical components immediately after the power supply has been turned off. Electrical shock may occur. After turning off the power, always wait 10 minutes or more before touching electrical components. WARNING 1 Do not use this equipment with air or any other unspecified refrigerant in the refrigerant lines. Excess pressure can cause a rupture. 2 During installation, make sure that the refrigerant pipe is attached firmly before you run the compressor.
  • Page 4: About The Product

    ABOUT THE PRODUCT 21 11 Precautions for using R410A refrigerant WARNING The basic installation work procedures are the same as conventional refrigerant models. However, pay careful attention to the following points: 1 Since the working pressure is 1.6 times higher than that of conventional refrigerant (R22) models, some of the piping and installation and service tools are special.
  • Page 5: Optional Parts

    21 41 Optional parts CAUTION The following parts are optional parts specific to R410A refrigerant. Do not use parts other than those listed below. Refer to the installation manual for the Branch box and the Separation tubes. Parts name Model name Separation tube UTP-SX248A Primary UTP-PU03A Branch box Secondary UTP-PU03B External connect kit UTY-XWZXZ3...
  • Page 6: System Configuration

    21 61 System configuration • 2 to 8 indoor units can be connected. • The total capacity of the indoor units connected must be between 38,400 and 62,400BTU. Ex. Eight indoor units: 7,000+7,000+7,000+7,000+7,000+7,000+7,000+12,000=61,000BTU → OK • I f the total capacity of the connected indoor units exceeds 62,400BTU, an error will be displayed and the units will be not operate. For the installation method of Branch box and indoor units, refer to the installation manuals that come with them. Indoor unit Branch box (Secondary2) Indoor unit When installing just 1 branch box, be sure to Breaker2 use the primary unit.
  • Page 7: Installation Work

    INSTALLATION WORK Please obtain the approval of the customer when selecting the location of installation and installing the unit. 31 11 Selecting an installation location WARNING • Securely install the outdoor unit at a location that can withstand the weight of the unit. Otherwise, the outdoor unit may fall and cause injury.
  • Page 8: Drain Installation

    31 21 Drain installation (Unit:mm(in.)) CAUTION Drain cap mounting hole Drain pipe mounting • Perform drain work in accordance with this hole Manual, and ensure that the drain water is properly drained. If the drain work is not carried out correctly, water may drip down from the unit, wetting the furniture.
  • Page 9 31 31 11 Single outdoor unit installation When the upward area is open (Unit:mm(in.)) (1) Obstacles at rear only (2) Obstacles at rear and (3) Obstacles at front only (4) Obstacles at front and rear only sides only 150(5-29/32) 1000(39-3/8) or more 1000(39-3/8) more 150(5-29/32) 200(7-7/8)
  • Page 10: Transportation Of The Unit

    31 31 31 Outdoor units installation in multi row (Unit: mm(in.)) (1) Single parallel unit arrangement (2) Multiple parallel unit arrangement 150(5-29/32) 500(19-11/16) 2000(78-3/4) or more 3000(118-1/8) or more 600(23-5/8) 600(23-5/8) 1000(39-3/8) 1500(59-1/16) 31 41 Transportation of the unit WARNING •...
  • Page 11: System Configuration

    • Do not install directly on the ground, this may result in equipment failure. 2” (5 cm) or over CAUTION In areas with heavy snowfall , where intake and outlet of the outdoor unit can become blocked by snow. It is recommended that unit be installed under a canopy or elevated on a high stand. Failure to do so will result in poor heating performance and/or premature failure of equipment.
  • Page 12 Pipe material Thicknesses of Annealed Copper Pipes (R410A) It is necessary to use seamless copper pipes and it is Pipe outside diameter Thickness desirable that the amount of residual oil is less than (mm (in.)) (mm (in.)) 40mg/10m (0.004oz/100ft). Do not use copper pipes 6.35 (1/4) 0.80 (0.032) having a collapsed, deformed or discolored portion...
  • Page 13: Pipe Installation

    PIPE INSTALLATION 51 11 Opening a knockout hole CAUTION • Be careful not to deform or scratch the panel while opening the knockout holes. • To protect the piping insulation after opening a knockout hole, remove any burrs from the edge of the hole. It is recommended to apply rust prevention paint to the edge of the hole.
  • Page 14: Separation Tube Connection

    51 21 Separation tube connection CAUTION • Use genuine separation tubes for the refrigerant piping branches. Separation tubes may be used for piping between the outdoor unit and branch box. • Select number of separation tubes and purchase it before starting the installation work. •...
  • Page 15 51 31 11 Flaring • Use special pipe cutter and flare tool exclusive Check if [L] is flared uniformly and is not cracked or scratched. for R410A. (1) Cut the connection pipe to the necessary length with a pipe cutter. (2) Hold the pipe downward so that the cuttings Pipe will not enter the pipe and remove any burrs. (3) Insert the flare nut (always use the flare nut Pipe outside Dimension A (mm (in1))
  • Page 16 CAUTION • Hold the torque wrench at its grip, keeping it in a right angle with the pipe, in order to tighten the flare nut correctly. • Outer panel may be distorted if fastened only with a wrench. Be sure to fix the elementary part with a holding wrench (spanner) and fasten with a torque wrench (refer to below diagram). Do not apply force to the blank cap of the valve or hang a wrench, etc., on the cap. If blank cap is broken, it may cause leakage of refrigerant. Blank cap Flare nut Flare nut...
  • Page 17: Electrical Wiring

    ELECTRICAL WIRING 61 11 The precautions of electrical wiring WARNING • Wiring connections must be performed by a qualified person in accordance with specifications. The rated supply of this product is 60Hz, 208/230V. Use a voltage within the range of 187-264V. • Before connecting the wires, make sure the power supply is OFF. •...
  • Page 18: Knockout Hole

    61 21 Knockout hole CAUTION • Be careful not to deform or scratch the panel while opening the knockout holes. • When cables are routed from the unit, a protection sleeve for the conduits can be inserted at the knockout hole. •...
  • Page 19: Unit Wiring

    61 41 Unit wiring • When stripping off the coating of a lead wire, always use a special tool such as a wire stripper. If there is no special tool available, carefully strip the coating with a knife etc. How to connect wiring to the terminal Caution when wiring cable (1) Use crimp-type terminals with insulating sleeves as shown in the figure to connect to the terminal block.
  • Page 20: Wiring Method

    61 51 Wiring method The wiring example for Outdoor unit, Indoor units and Branch box is shown in figure. For other connections, refer to Design&Technical Manual. [Example 1] Single-phase Power supply cable 208/230V 60Hz Max.26.5A Breaker1 Breaker1: Eeath leakage breaker Breaker2: Circuit breaker (MOCP) Breaker2 Outdoor unit ※ Select the disconnect switch appropriately depending BRANCH BOX on the loads (total current value of connected units).
  • Page 21: Connecting Of Wiring

    61 61 Connecting of wiring (1) Remove the service covers and insulation sheet. And connect the wires to the terminal in accordance with the terminal nameplate. (Fig. A, Fig. B) (2) After connecting the wires, use binders to secure the wires. (Fig. B) •...
  • Page 22: Pipe Installation

    PIPE INSTALLATION II 71 11 Sealing test WARNING • Before operating the compressor, install the pipes and securely connect them. Otherwise, if the pipes are not installed and if the valves are open when the compressor operates, air could enter the refrigeration cycle. If this happens, the pressure in the refrigeration cycle will become abnormally high and cause damage or injury.
  • Page 23: Vaccum Process

    71 21 Vaccum process CAUTION • Perform a refrigerant leakage test (air tightness test) to check for leaks using nitrogen gas while all valves in the outdoor unit are closed. (Use the pressure indicated on the nameplate.) • Be sure to evacuate the refrigerant system using a vacuum pump. •...
  • Page 24: Additional Charging

    71 31 Additional charging CAUTION • Do not turn on the power unless all operations are complete. • Do not charge the system with a refrigerant other than R410A. • Do not reuse recovered refrigerant. • Use an electronic scale to measure the charging amount of refrigerant. Adding more refrigerant than the specified amount will cause a malfunction.
  • Page 25: Refrigerant Recovery Method

    71 41 Refrigerant recovery method ※ Please perform the refrigerant recovery MODE/EXIT : Press the “MODE/EXIT” button. according to the local law and rules. SELECT : Press the “SELECT” button. The refrigerant recovery of this type : Press the “ENTER” button. ENTER of equipment must be performed by a refrigerant recovery machine.
  • Page 26: Installing Insulation

    71 51 Installing insulation • Use an insulation on the refrigerant pipes to prevent condensation and dripping. • Determine the thickness of the insulation material by referring to Table A. Table A, Selection of insulation (for using an insulation material with equal heat transmission rate or below 01040 W/(m·k)) Insulation material Relative humidity Minimum thickness...
  • Page 27: Field Setting

    FIELD SETTING CAUTION Discharge the static electricity from your body before setting up the DIP switches. Never touch the terminals or the patterns on the parts that are mounted on the board. 81 11 Field setting switches Set the functions of an outdoor unit with the push buttons (SW931, SW932 and SW933) while observing the 7 seg. display (LED961 and LED962) on the printed circuit board.
  • Page 28: Function Settings

    81 21 Function settings Various functions can be set. Set when necessary. Perform settings after all indoor units have stopped operation. Refer to Table A for the items that can be set. Table1 A: List of Settings 7 seg Factory First 2 Last 2 Setting Item...
  • Page 29 Setting method Use the MODE/EXIT, SELECT, and ENTER buttons to configure settings according to the procedures below. 1: Function Setting 7 seg. display First 2 digits Last 2 digits MODE/EXIT : Press the “MODE/EXIT” button. MODE/EXIT : Press the “SELECT” button. SELECT : Press the “ENTER” button. ENTER (Blinking) SELECT (When [F3] to [F9] are displayed, continue to press the SELECT button until [F2] is displayed.) (Blinking) ENTER...
  • Page 30: Test Operation

    TEST OPERATION 91 11 Check run After performing the repairs, inspections etc., always carry out the Check run. Normal operation will not be possible without performing the Check run. 91 11 11 Things to confirm before starting the Check run. To ensure safety, check that the following work, inspections and operations have been completed.
  • Page 31: Operating Procedure For Check Run

    ● ○ 91 11 31 Operating procedure for Check run : On, : Blinking, : Off) (1) Turn power on to the outdoor unit, indoor units and branch boxes. After the displayed number of “8888.” has been turned off, press the “CHECK”...
  • Page 32 91 11 41 Error display ● ○ : On, : Blinking, : Off) Error display Error item Contents 7 seg. display LED lamp Indeterminable The external or room temperature is outside the oper- able range. The air conditioner will temporarily permit normal operation, but the Check run should be carried (blinking) out again at a later date when the temperatures are...
  • Page 33: Test Run

    91 21 TEST RUN 91 21 11 Pre-test run check items Before the test run, refer to the figure and check the following items. 1 Is check run performed? Test run doesn't operate if check run is not performed. (“FAIL” is displayed when operating the unit before the check run is done.) After checking that the above items are all in order, refer to “9.2.2.
  • Page 34 Perform test run for refrigerant system. You can set “cooling test run” or “heating test run” with the push-button switch on the outdoor unit print circuit board. Test run setting method Function settings First 2 digits Last 2 digits MODE/EXIT MODE/EXIT : Press the “MODE/EXIT”...
  • Page 35: Confirming The Operation Of Indoor Unit

    91 31 Confirming the operation of indoor unit Run the unit in a normal way, and confirm its operation. (Please end the check run first before confirmation) ① Cold air (or warm air) must be discharged from the indoor unit. ① ② The indoor unit operates normally when air direction or air volume adjustment button is pressed. ① Error code is displayed when operating the indoor unit with the remote controller before check run.
  • Page 36 101 21 21 Low noise mode (CN931) • T his features reduces the operating sound of the outdoor unit from the normal sound. The air conditioner is set to the “Low noise mode” Input Signal when closing the contact input of a commercial timer or ON/OFF switch to a connector on the outdoor control PC board.
  • Page 37: External Output

    101 31 External output 101 31 11 Wiring of connector When installing connection cable, specified part (optional parts) must be used. Circuit diagram example Output Connector Connected unit Outdoor unit Connection Error status CN951 (Field supply) control PC board cable Compressor status CN952 Connector * Make the distance from the PC board to the Power supply connected unit within 10m (33ft).
  • Page 38: Led Display

    LED Display You can determine the operating status by the lighting up and blinking of the LED lamp. Check the status using the table below. 111 11 Normal operation mode CODE DESCRIPTION Cooling Heating r During oil recovery operation d F During defrosting operation P C During power saving operation L n During low noise operation 111 21...