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installation manual

Be  sure  to  be  in  conformity  with  the  local,  national  and 

international laws and regulations.

Read "PRECAUTIONS" carefully before installation.

The  following  precautions  include  important  safty  items. 

Observe them and never forget.

Keep this manual with the owner's manual in a handy place 

for future reference.

1.    PRECAUTIONS

The safty precautions listed here are divided into two categories. In 

either case, important safty information is listed which must be read 

carefully.

After  completing  the  installation,  make  sure  that  the  unit  operates 

properly during the start-up operation. Please instruct the customer 

on  how  to  operate  the  unit  and  keep  it  maintained.Also,  inform 

customers that they should store this installation manual along with 

the owner's manual for future reference.  

Be  sure  only  trained  and  qualified  service  personnel  to 

install, repair or service the equipment.

Improper  installation,  repair,  and  maintenance  may  result  in 

electric  shocks,  short-circuit,  leaks,  fire  or  other  damage  to 

the equipment.

Failure to observe a warning may result in death.

Failure  to  observe  a  caution  may  result  in  injury  or 

damage to the equipment.

CONTENTS

PAGE

PRECAUTIONS.......................................................................................1

INSTALLATION  INFORMATION................................................................2

ATTACHED  FITTINGS.............................................................................2

INDOOR  UNIT  INSTALLATION.................................................................3

INSTALL  THE  CONNECTING  PIPE..........................................................5

CONNECT  THE  DRAIN  PIPE...................................................................6

WIRING.................................................................................................7

CONTROL  OPERATION............................................................................9

THE EXPLAIN OF THE DISPLAY PANEL.................................................10

TEST  OPERATION.................................................................................11

Install according to this installation instructions strictly. 

If  installation  is  defective,  it  will  cause  water  leakage, 

electrical shock and fire.

When installing the unit in a small room, take measures 

against to keep refrigerant concentration from exceeding 

allowable safety limits in the event of refrigerant leakage.

 

Contact  the  place  of  purchase  for  more  information. 

Excessive refrigerant in a closed ambient can lead to oxygen 

deficiency.

Use  the  attached  accessories  parts  and  specified  parts 

for installation. 

otherwise,  it  will  cause  the  set  to  fall,  water  leakage, 

electrical shock and fire.

Install  at  a  strong  and  firm  location  which  is  able  to 

withstand the set' s weight. 

If  the  strength  is  not  enough  or  installation  is  not  properly 

done, the set will drop to cause injury.

The appliance shall not be installed in the laundry.

Before obtaining access to terminals, all supply circuits 

must be disconnected.

The  appliance  must  be  positioned  so  that  the  plug  is 

accessible.

The enclosure of the appliance shall be marked by word, 

or by symbols, with the direction of the fluid flow.

For  electrical  work,  follow  the  local  national  wiring 

standard, regulation and this installation instructions. An 

independent circuit and single outlet must be used. 

If  electrical  circuit  capacity  is  not  enough  or  defect  in 

electrical work, it will cause electrical shock fire.

Use  the  specified  cable  and  connect  tightly  and  clamp 

the cable so that no external force will be acted on the 

terminal.

 

If connection or fixing is not perfect, it will cause heat-up or 

fire at the connection.

Wiring routing must be properly arranged so that control 

board cover is fixed properly. 

If  control  board  cover  is  not  fixed  perfectly,  it  will  cause 

heat-up  at  connection  point  of  terminal,  fire  or  electrical 

shock.

If the supply cord is damaged, it must be replaced by the 

manufacture or its service agent or a similarly qualified 

person in order to avoid a hazard.

An  all-pole  disconnection  switch  having  a  contact 

separation  of  at  least  3mm  in  all  poles  should  be 

connected in fixed wiring.

When carrying out piping connection, take care not to let 

air substances go into refrigeration cycle. 

Otherwise,  it  will  cause  lower  capacity,  abnormal  high 

pressure in the refrigeration cycle, explosion and injury.

Do not modify the length of the power supply cord or use 

of extension cord, and do not share the single outlet with 

other electrical appliances. 

Otherwise, it will cause fire or electrical shock.

Carry out the specified installation work after taking into 

account strong winds, typhoons or earthquakes.

Improper installation work may result in the equipment falling 

and causing accidents.

CAUTION

WARNING

WARNING

Summary of Contents for OTEC IEFC-D Series

Page 1: ...IEFC D Series Floor Ceiling Installation Manual...

Page 2: ...the set to fall water leakage electrical shock and fire Install at a strong and firm location which is able to withstand the set s weight If the strength is not enough or installation is not properly...

Page 3: ...radio waves a distance of 1 meter may not be sufficient enough to eliminate the noise The appliance is not intended for use by young children or infirm persons without supervision Don t install the a...

Page 4: ...T2 9x10 C H CAUTION 4 INDOOR UNIT INSTALLATION NOTE This manual is subject to changes due to technological improvement without further notices 4 1 The units may be mounted vertically provided that the...

Page 5: ...g arm on the hanging screw bolt Refer to Fig 4 11 Prepare the mounting bolts on the unit Refer to Fig 4 12 Screw nut Washer Hanging screw bolt Hanging arm Fig 4 11 20 25mm Fig 4 6 Fig 4 7 1 Fix the ho...

Page 6: ...hanging arm by sliding backward Securely tighten the mounting bolts on both sides Table 4 2 4 5 Material and size of the piping 5 1 The Procedure of Connecting Pipes 5 1 1 Measure the necessary length...

Page 7: ...ly flow 5 Be sure of no leakage by checking it with leak detector or soap water 6 Cover the joint of the connecting pipe to the indoor unit with the soundproof insulating sheath fittings and bind it w...

Page 8: ...Connect the indoor unit to power only after the refrigerant has been vacuumed 9 Don t connect the power wire to the signal wire connection end 7 1 The specification of power CAUTION A disconnection de...

Page 9: ...f the outdoor unit two screws Connect the cables of the indoor unit to the outdoor unit s terminal block according to the numbers To prevent water from entering make an electrical coil with the connec...

Page 10: ...e Check the following items according to the manual If there is any fault troubleshoot by referring to the section Fault and Troubleshooting in the manual Indoor Unit The wired remote controller switc...

Page 11: ...o restart function SW6 Definition SW7 Definition RESERVED RESERVED Unit state Display output Digital display panels Unit state Digital display Standby Shutting down Operation indicator flashes slowly...

Page 12: ...OMEGAIECS Round Flow Ceiling Cassette Technical Manual info otecvrf com www otecvrf com info omegavrf com www omegavrf com IECSJ3A IM1D0622...

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