Fujitsu AIRSTAGE AOUH36KWAH4 Installation Manual
Fujitsu AIRSTAGE AOUH36KWAH4 Installation Manual

Fujitsu AIRSTAGE AOUH36KWAH4 Installation Manual

Outdoor unit

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AIR CONDITIONER
OUTDOOR UNIT
Contents
1. SAFETY PRECAUTIONS ....................................................................... 1
1.1. IMPORTANT! Please read before starting ................................... 1
1.2. Special precautions ..................................................................... 1
1.3. Precautions for using R32 refrigerant .......................................... 2
2. PRODUCT SPECIFICATION ................................................................. 4
2.1. Installation tools ........................................................................... 4
2.2. Accessories ................................................................................. 5
2.3. Pipe requirements ....................................................................... 5
2.4. Electrical requirements ................................................................ 7
2.5. Additional charge amount ............................................................ 7
2.6. Operable conditions of temperature ............................................ 7
3. INSTALLATION WORK .......................................................................... 7
3.1. Installation dimensions ................................................................ 8
3.2. Transporting the unit .................................................................... 9
3.3. Mounting the unit ......................................................................... 9
3.4. Removing and replacing part ..................................................... 10
3.5. Drain installation ........................................................................ 10
3.6. Pipe installation ......................................................................... 10
3.7. Sealing test ................................................................................ 11
3.8. Vacuum process ........................................................................ 12
3.9. Additional charging .................................................................... 12
3.10. Electrical wiring ........................................................................ 12
4. HOW TO OPERATE DISPLAY UNIT .................................................... 16
4.1. Various setting methods ............................................................ 16
4.2. Outdoor unit low noise operation function ................................. 16
4.3. Changing the current limit function ............................................ 17
5. CHECK RUN ........................................................................................ 17
5.3. Operating procedure for check run ............................................ 17
5.4. Check run judgment failure display ........................................... 19
5.5. Re-display check run results ..................................................... 19
5.6. Automatic wiring correction memory reset ................................. 19
6. TEST RUN ............................................................................................ 19
6.1. TEST RUN method .................................................................... 19
7. ERROR CODE ..................................................................................... 20
7.1. In the event of an error .............................................................. 20
7.2. Error location display ................................................................. 20
7.3. Error code display ...................................................................... 20
8. PUMP DOWN ....................................................................................... 20
9. FINISHING ........................................................................................... 21
9.1. Installing insulation .................................................................... 21
10. CUSTOMER GUIDANCE ................................................................... 21
Installation must be performed in accordance with the requirement of NEC and CEC by
authorized personnel only.
INSTALLATION MANUAL

1. SAFETY PRECAUTIONS

1.1. IMPORTANT! Please read before starting

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 install or service the
system so it operates safely and effi ciently.
For safe installation and trouble-free operation, you must:
• Carefully read this instruction booklet before beginning.
• Follow each installation or repair step exactly as shown.
• Observe all local, state, and national electrical codes.
• Pay close attention to all warning and caution notices given in this manual.
WARNING:
This symbol refers to a hazard or unsafe practice which can result in
severe personal injury or death.
This symbol refers to a hazard or unsafe practice which can result in
CAUTION:
personal injury and the potential for product or property damage.
• Hazard alerting symbols
Electrical
If Necessary, Get Help
These instructions are all you need for most installation sites and maintenance conditions.
If you require help for a special problem, contact our sales/service outlet or your certifi ed
dealer for additional instructions.
In Case of Improper Installation
The manufacturer shall in no way be responsible for improper installation or maintenance
service, including failure to follow the instructions in this document.

1.2. Special precautions

When Wiring
ELECTRICAL SHOCK CAN CAUSE SEVERE PERSONAL INJURY OR DEATH. ONLY A
QUALIFIED, EXPERIENCED ELECTRICIAN SHOULD ATTEMPT TO WIRE THIS SYS-
TEM.
• Do not supply power to the unit until all wiring and tubing are completed or reconnected
and checked.
• Highly dangerous electrical voltages are used in this system. Carefully refer to the wir-
ing diagram and these instructions when wiring. Improper connections and inadequate
grounding (earthing) can cause accidental injury or death.
• Ground (earth) the unit following local electrical codes.
• Connect all wiring tightly. Loose wiring may cause overheating at connection points and
a possible fi re hazard.
When Transporting
Be careful when picking up and moving the indoor and outdoor units. Get a partner to
help, and bend your knees when lifting to reduce strain on your back. Sharp edges or thin
aluminum fi ns on the air conditioner can cut your fi ngers.
When Installing...
...In a Ceiling or Wall
Make sure the ceiling/wall is strong enough to hold the unit's weight. It may be necessary
to construct a strong wood or metal frame to provide added support
...In a Room
Properly insulate any tubing run inside a room to prevent "sweating" that can cause drip-
ping and water damage to walls and fl oors.
...In Moist or Uneven Locations
Use a raised concrete pad or concrete blocks to provide a solid, level foundation for the
outdoor unit. This prevents water damage and abnormal vibration.
...In an Area with High Winds
Securely anchor the outdoor unit down with bolts and a metal frame.
Provide a suitable air baffl e.
...In a Snowy Area (for Heat Pump-type Systems)
Install the outdoor unit on a raised platform that is higher than drifting snow.
PART No. 9379113397-02
For authorized service personnel only.
Safety/alert
.
En-1

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Summary of Contents for Fujitsu AIRSTAGE AOUH36KWAH4

  • Page 1: Table Of Contents

    INSTALLATION MANUAL AIR CONDITIONER OUTDOOR UNIT PART No. 9379113397-02 For authorized service personnel only. 1. SAFETY PRECAUTIONS 1.1. IMPORTANT! Please read before starting 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 install or service the system so it operates safely and effi...
  • Page 2: Precautions For Using R32 Refrigerant

    When Connecting Refrigerant Tubing CAUTION • Keep all tubing runs as short as possible. • Use the fl are method for connecting tubing. • For the air conditioner to work appropriately, install it as written in this manual. • Apply refrigerant lubricant to the matching surfaces of the fl are and union tubes before •...
  • Page 3 CAUTION 2-8 Checks to electrical devices • Repair and maintenance to electrical components shall include initial safety checks 1 General and component inspection procedures. 1-1 Installation • If a fault exists that could compromise safety, then no electrical supply shall be con- •...
  • Page 4: Product Specification

    Explanation of symbols displayed on the indoor unit or outdoor unit. CAUTION This symbol shows that this product 9 Charging procedures uses a low burning velocity material. If WARNING • In addition to conventional charging procedures, the following requirements shall be the refrigerant is leaked and exposed followed.
  • Page 5: Accessories

    ■ Protection of pipes 2.2. Accessories • Protect the pipes to prevent the entry of moisture and dust. WARNING • Especially, pay attention when passing the pipes through a hole or connecting the end of a pipe to the outdoor unit. •...
  • Page 6: Limitation Of Refrigerant Piping Length

    ■ • To install an indoor unit, refer to the installation manual included with the indoor unit. Limitation of refrigerant piping length Outdoor port CAUTION Capacity indoor unit Standard port size [in (mm)] • The total maximum pipe lengths and height diff erence of this product are shown in 1/4 (6.35) / 3/8 (9.52) 7 - 9 the table.
  • Page 7: Electrical Requirements

    Refrigerant suitable for a total piping length of 165 ft. (50 m) is charged in the outdoor unit 2.4. Electrical requirements at the factory. When the piping is longer than 165 ft. (50 m) , additional charging is necessary. For the additional amount, refer to the following table. WARNING Additional charge amount •...
  • Page 8: Installation Dimensions

    ■ Outdoor unit installation CAUTION • Do not install the outdoor unit in the following areas: - Area with high salt content, such as at the seaside. It will deteriorate metal parts, When the upper space is open [Unit: in (mm)] causing the parts to fail or the unit to leak water.
  • Page 9: Transporting The Unit

    When an obstruction in the upper space [Unit: in (mm)] 3.3. Mounting the unit (1) Obstacles at rear and above • Install 4 anchor bolts at the locations indicated with arrows in the fi gure. • Up to 3 units can be installed side by side. •...
  • Page 10: Removing And Replacing Part

    [Unit: in (mm)] 3.4. Removing and replacing part Drain cap mounting hole ×3 ■ The switch cover and the terminal cover removal Drain pipe mounting hole ×1 (1) Remove the tapping screws. (2) Slide the switch cover downwards to release. ■...
  • Page 11: Flare Connection

    ■ Flare connection CAUTION • Hold the torque wrench at its grip, keeping it in a right angle with the pipe, in order to CAUTION tighten the fl are nut correctly. • Be sure to install the pipe against the port on the indoor unit and the outdoor unit cor- rectly.
  • Page 12: Vacuum Process

    3.8. Vacuum process 3.9. Additional charging CAUTION WARNING • Do not turn on the power unless all operations are complete. • When moving and installing the air conditioner, do not mix gas other than the speci- • If the system is not evacuated suffi ciently, its performance will drop. fi...
  • Page 13: Connection Diagrams

    ■ Connection diagrams CAUTION • The primary power supply capacity is for the air conditioner itself, and does not 45 model include the concurrent use of other devices. 1,2: Power line • If the electrical power is inadequate, contact your electric power company. 3: Control line •...
  • Page 14: Wiring Method

    ■ 36 model Wiring method 1,2: Power line (1) The switch cover and the terminal cover removal 3: Control line • Remove the fi xing screws. • Lift the switch cover upward, and then pull it outward to remove it. OUTDOOR UNIT INDOOR UNIT (Inter-unit)
  • Page 15 (7) As illustrated, draw out the power cable and the connection cable. (3) Fasten the power supply cable and the connection cable to the conduit holder using the lock nut. • Open the knock out holes with the tool so as not to transform conduit plate if necessary.
  • Page 16: How To Operate Display Unit

    ■ Description of display 4. HOW TO OPERATE DISPLAY UNIT LED display lamp Function or operation method 4.1. Various setting methods • Turns on when the power supply is ON (Including when error occurs). (1) POWER/MODE Green • Indicate the MODE by the number of fl ashes when the installation function is active.
  • Page 17: Changing The Current Limit Function

    4.3. Changing the current limit function 5.3. Operating procedure for check run CAUTION CAUTION • When the current limit function is working, cooling and heating capacity will decrease. • Initiate check run after more than 12 hours after the power source is connected. •...
  • Page 18 If the connection is correct [(Example) When 4 indoor units are connected] (b) Based on the results of step (a), record as follows. • After the number of connected units are displayed, the LED for each unit will light up •...
  • Page 19: Check Run Judgment Failure Display

    5.4. Check run judgment failure display 6. TEST RUN • If check run cannot be performed, the following is displayed. In this case, the check CAUTION run will stop. Check by using the cooling test run of the indoor unit. •...
  • Page 20: Error Code

    7. ERROR CODE Error code Error type • If an error occurs, the LED will light up to display the error location and the error code. 11.3 Serial communication error 11.4 Serial communication error during operation 7.1. In the event of an error 16.5 Communication error between controller and outdoor unit 22.1...
  • Page 21: Finishing

    (3) To start operation, press the [PUMP DOWN] switch*2 for 3 seconds or press after the 9. FINISHING power has been on for 3 min. TEST RUN / 9.1. Installing insulation PUMP DOWN *2: Push switch (SW1) • 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 During pump down, the LED (POWER/MODE) will fl...

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