Ducted Installation Manual

ManualsBrandsFujitsu ManualsCooling24k BTU Cooling + Heating - Mid-Static Concealed Duct Air Conditioning System - 17.5 SEER

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NOTES:

This manual describes how to install the air conditioner described above.

Handling and installation shall only be done by professionals as outlined in this

manual.

• Installation must be performed in accordance with the requirement of NEC (National Electri-

cal Code) and CEC (Canadian Electrical Code) by authorized personnel only.

• All products are manufactured to metric units and tolerances. United States customary

units are provided for reference only. In cases where exact dimensions and tolerances are

required, always refer to metric units.

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 efficiently.

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 danger, 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.

CAUTION:

This symbol refers to a hazard or unsafe practice which can result in

personal injury and the potential for product or property damage.

• Hazard alerting symbols

: Electrical : Safety/alert

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 certified

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 SYSTEM.

• 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

earthing (grounding) can cause accidental injury or death.

• Earth (Ground) 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

dripping and water damage to walls and ﬂ oors.

...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.

AIR CONDITIONER

INDOOR UNIT (Duct type)

INSTALLATION MANUAL

PART No. 9381386246

For authorized service personnel only.

Contents

1. SAFETY PRECAUTIONS ……………………………………………… 1

1.1. IMPORTANT! Please read before starting ………………………1

1.2. Special precautions …………………………………………………1

2. PRODUCT SPECIFICATION …………………………………………… 2

2.1. Precautions for using R410A refrigerant …………………………2

2.2. Installation tools …………………………………………………… 2

2.3. Accessories ………………………………………………………… 2

2.4. Pipe requirement …………………………………………………… 3

2.5. Electrical requirement ……………………………………………… 3

2.6. Optional parts ……………………………………………………… 3

2.7. Selecting the pipe material ………………………………………… 3

3. INSTALLATION WORK ………………………………………………… 4

3.1. Selecting an installation location ………………………………… 4

3.2. Installation dimension ……………………………………………… 4

3.3. Installing the unit …………………………………………………… 4

3.4. Intake duct connection …………………………………………… 5

3.5. Drain installation …………………………………………………… 6

3.6. Pipe installation …………………………………………………… 7

3.7. Fresh air intake ……………………………………………………… 8

3.8. Electrical wiring …………………………………………………… 8

3.9. Remote controller installation ……………………………………… 9

4. OPTIONAL INSTALLATION WORK ………………………………… 10

4.1. Optional kit installation ………………………………………… 10

4.2. External input and output ……………………………………… 10

4.3. Remote sensor ………………………………………………… 11

5. REMOTE CONTROL INSTALLATION ……………………………… 11

5.1. Group control …………………………………………………… 11

5.2. Multiple remote control ………………………………………… 11

5.3. DIP switch 101 setting …………………………………………… 11

6. FUNCTION SETTING ………………………………………………… 12

6.1. Function details ………………………………………………… 12

6.2. Static pressure …………………………………………………… 13

7. CHECK LIST …………………………………………………………… 13

8. TEST RUN ……………………………………………………………… 13

8.1. Check items ……………………………………………………… 13

8.2. Operation method ……………………………………………… 14

9. FINISHING ……………………………………………………………… 14

10. CUSTOMER GUIDANCE ……………………………………………… 14

11. ERROR CODES ……………………………………………………… 14

9381386246_IM.indb 19381386246_IM.indb 1 12/18/2018 4:09:44 PM12/18/2018 4:09:44 PM

Summary of content (15 pages)

PAGE 1
AIR CONDITIONER INDOOR UNIT (Duct type) INSTALLATION MANUAL PART No. 9381386246 • Installation must be performed in accordance with the requirement of NEC (National Electrical Code) and CEC (Canadian Electrical Code) by authorized personnel only. • All products are manufactured to metric units and tolerances. United States customary units are provided for reference only. In cases where exact dimensions and tolerances are required, always refer to metric units.
PAGE 2
When Connecting Refrigerant Tubing 2. PRODUCT SPECIFICATION • Keep all tubing runs as short as possible. • Use the flare method for connecting tubing. • Apply refrigerant lubricant to the matching surfaces of the flare and union tubes before connecting them, then tighten the nut with a torque wrench for a leak-free connection. • Check carefully for leaks before opening the refrigerant valves. 2. 1.
PAGE 3
Name and Shape Q’ty Description Operating Manual 2. 5. Electrical requirement The indoor unit is powered from the outdoor unit. Do not power indoor unit from separate power source. 1 WARNING Installation Manual (indoor unit) 1 Special nut A (large flange) 4 Special nut B (small flange) 4 (This book) For suspending the indoor unit from ceiling Standard for electrical wiring and equipment differs in each country or region.
PAGE 4
3. 2. Installation dimension 3. INSTALLATION WORK Unit: in (mm) WARNING • Do not turn on the power until all installation work is complete. • Carrying and installation of the unit should be performed by a sufficient number of people and with sufficient equipment that is adequate for the weight of the unit. Performing such work with an insufficient number of people or with inadequate equipment could result in dropping of the unit or personal injury.
PAGE 5
CAUTION CAUTION Confirm the directions of the air intake and outlet before installing the unit. The unit takes in air from the evaporator side, and expels it from the fan side. Fasten the unit securely with special nuts A and B so that the unit does not fall. 3. 3. 3. Leveling 3. 3. 1. Position the ceiling hole Base vertical direction leveling on the unit (right and left). Hanging bolt installation diagram.
PAGE 6
Drain hose insulation (Accessory) CAUTION • Make sure the drain water is properly drained. • To prevent people from touching the parts inside the unit, be sure to install grilles on the inlet and outlet ports. The grilles must be designed in such a way that cannot be removed without tools. • Set the appropriate external static pressure within the permissible range. (Refer to “6.
PAGE 7
GOOD Outlet airflow 3. 6. 1. Pipe connection • When the pipe is long, install supporters. ■ Flaring Supporter Drain pipe Arrange the drain pipe lower than this portion 60 to 79 in (1.5 to 2 m) PROHIBITED Rise Trap Use special pipe cutter and flare tool designed for R410A pipework. (1) Cut the connection pipe to the necessary length with a pipe cutter. (2) Hold the pipe downward so that cuttings will not enter the pipe and remove any burrs.
PAGE 8
3. 8. Electrical wiring CAUTION • Hold the torque wrench at its grip, keeping it in the right angle with the pipe, in order to tighten the flare nut correctly. • Tighten the flare nuts with a torque wrench using the specified tightening method. Otherwise, the flare nuts could break after a prolonged period, causing refrigerant to leak and generate a hazardous gas if the refrigerant comes into contact with a flame. Tighten with 2 wrenches.
PAGE 9
■ Connection cable 3. 8. 2. Connection cable preparation ■ Connection cable Keep the earth (ground) wire longer than the other wires. Conduit connector Earth (ground) wire Control line Power line ■ Remote controller cable For 2-wire type Conduit connector 1-3/16 in (30 mm) Earth (ground) Outdoor unit ■ Remote controller cable 3. 8. 3. How to connect wiring to the terminals. (1) Use ring terminals with insulating sleeves as shown in the figure below to connect to the terminal block.
PAGE 10
When function setting is "Operation/Stop" mode 2. 4. OPTIONAL INSTALLATION WORK Input signal 4. 1. Optional kit installation WARNING Regulation of cable differs from each locality, refer in accordance with local rules. Command OFF → ON Operation ON → OFF Stop (R.C. disabled) 4. 2. 2. External output • A twisted pair cable (22AWG) should be used. Maximum length of cable is 82 ft. (25 m).
PAGE 11
Example 4. 3. Remote sensor Remote sensor • Remove the existing connector and replace it with the remote sensor connector (ensure that the correct connector is used). • The original connector should be insulated to ensure that it does not come into contact with other electrical circuitry. If 4 indoor units are connected.
PAGE 12
■ Auto restart 6. FUNCTION SETTING Enable or disable automatic restart after a power interruption. To change the function settings, refer to the procedures described in the installation manual of the remote controller (wired type). The function settings are as follows. 40 6. 1. Function details ■ Filter sign Select appropriate intervals for displaying the filter sign on the indoor unit according to the estimated amount of dust in the air of the room.
PAGE 13
■ Switching functions for external output terminal b. Automatic airflow adjustment Functions of the external output terminal can be switched. (♦... Factory setting) Setting Value Setting Description 00 Operation status 01 to 08 Other status (Refer to the Design & technical manual.) Function Number 60 09 Error status 10 Fresh air control 11 Auxiliary heater CAUTION ♦ ■ Setting record • Record any changes to the settings in the following table.
PAGE 14
11. ERROR CODES 8. 2. Operation method Depending on your installation, choose from the following: ■ By the wireless remote controller (with [TEST RUN] button) • To start test run, press the [START/STOP] button and the [TEST RUN] button on the remote controller. • To end test run, press the remote controller [START/STOP] button. ■ By the IR receiver unit • To start test run, press the [MANUAL AUTO] button of the IR receiver for more than 10 seconds (forced cooling).
PAGE 15
Error display Error display Wired remote TIMER ECONOMY OPERATION controller lamp lamp lamp (green) Error code (orange) (green) Description (5) (3) Drain pump error (5) (4) Electric air cleaner reverse VDD error Wired remote TIMER ECONOMY OPERATION controller lamp lamp lamp (green) Error code (orange) (green) Description • Discharge pressure sensor error • Suction pressure sensor error • High pressure switch error (8) (6) (5) (9) (4) Trip detection Filter set error (7) Damper e