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2

Wired controller is standard.

The  air  conditioner  is  delivered  from  the  factory  without 
connecting pipes.

All  the  figures  in  the  manual  explain  only  the  general 
appearance  and  dimensions  of  the  unit.  The  air  conditioner 
you  purchased  may  not  be  completely  consistent  with  the 
appearance and functions listed in the figures. Please refer to 
the actual product.

CAUTION

2.1 Accessories

2.2 Locally Purchased Accessories

An insufficient power supply capacity or inappropriate installation 
may cause fire.

Use the specified cables for wiring connect the terminals 
securely fix. To prevent external forces applied to the 
terminals from affecting the terminals. 
Be sure to provide grounding.

Do not connect ground wires to gas pipes, water pipes, lightning 
rods or ground wires for telephone cables.

Conform to the regulations of the local electric company when 
wiring the power supply.

Inappropriate grounding may cause electric shock.

Do not install the air conditioner in a location subject to a risk 
of exposure to a combustible gas.

If a combustible gas leaks, and stays around the unit, a fire may 
occur.

6) Reamer
7) Gas leak detector
8) Tape measure
9) Thermometer
10) Mega-tester
11) Electro circuit tester
12) Hexagonal wrench
13) Flare tool
14) Pipe bender
15) Level vial
16) Metal saw
17) Gauge manifold (Charge hose:R410A special requirement)
18) Vacuum pump (Charge hose:R410A special requirement)
19) Torque wrench

20) Copper pipe gauge adjusting projection margin
21) Vacuum pump adapter

 Required tools for installation work

1) Philips screw driver
2) Hole core drill(65mm)
3) Spanner
4) Pipe cutter
5) Knife

2. OVERVIEW

6.4×0.8

53

Water 

discharge 

pipe PVC

Insulation 

casing

Model Piping Liquid side Gas side

Remarks

12.7×0.8

6.4×0.8

71

15.9×1.0

9.5×0.8

90/105

15.9×1.0

(Unit: mm)

Copper pipe 

This is used 

as the IDU’s 

drain pipe. 

The length is 

determined 

according to 

actual 

needs.

It is used to connect 

the IDU and ODU 

refrigerant systems. A 

soft copper tube (T2M) 

is recommended. The 

length is determined 

according to actual 

needs. 

The inner diameter 

should match the 

corresponding 

copper tube and 

rigid polyethylene 

plastic tube. The 

thickness is usually 

10mm (or above). If 

the pipe is used in 

a closed humid 

area, the thickness 

should be 

increased.

9.5×0.8

120/140/160

15.9×1.0

Installation Manual 

Installation instructions (Make sure you 

hand over to the user)

Brass nut

For use in the installation of 

connecting pipe (the quantity is one for 

models with a process pipe)

Ring clamp

For use in the installation of connecting 

pipes

Insulation piping

For insulation of piping connections

NAME

SHAPE

User Manual

Operating instructions (Make sure you 

hand over to the user)

Remote controller

Flexible hose tube

Soundproof / insulation sheath
Out-let pipe sheath

Tightening band

Bolt  M6

Nut      
Washer      

Sponge (250*250*10)

Sponge (60*100*5)

QUANTITY

1

1

1

1

2

2

4

2

1

5

1

8

8

1

1

Summary of Contents for OTEC IECS-D Series

Page 1: ......

Page 2: ...sconnection device which has at least 3mm separation distance in all pole and a residual current device RCD with the rating of above 10mA shall be incorporated in the fixed wiring according to the nat...

Page 3: ...requirement 18 Vacuum pump Charge hose R410A special requirement 19 Torque wrench 20 Copper pipe gauge adjusting projection margin 21 Vacuum pump adapter Required tools for installation work 1 Philip...

Page 4: ...ry if the location is not strong enough Carry out the specified installation works to prevent strong winds or earthquakes Improper installation may cause the unit to drop leading to accidents Before w...

Page 5: ...ling when necessary b Adjust the position of the unit and make sure that the gap with the ceiling is evenly spaced on all four sides of the unit and the base of the unit is 10 12 mm into the base of t...

Page 6: ...therwise it may cause water to leak Calibrate the levelness of the IDU using a spirit level or polyethylene tube filled with water The IDU is equipped with a built in drain pump and float switch Do no...

Page 7: ...ook Drainage pan hook Hook screw Phillips screwdriver Swing motor Foam at panel side Unit Ceiling Panel Panel bubble 1 Air outlet Air deflector Panel bubble 2 4 6 mm The plastic cover plate protruding...

Page 8: ...outdoor unit and the indoor unit may not exceed the allowable piping length In the case that the installation place is exposed to strong wind such as a seaside make sure the fan operating properly by...

Page 9: ...from becoming loose When the outlet of the water discharge pipe is higher than the pipe connection for water suction try to keep the water discharge pipe as vertical as possible and the water outlet c...

Page 10: ...nical surface of the connecting nut the refrigerant oil used must be compatible with the refrigerant of this model and screw it 3 to 4 turns with your hand to tighten it as shown in the Fig 3 9 When c...

Page 11: ...ge Refer to the following table to determine the tightening torque 1 Bend the pipe or drill a hole in the wall as needed The cross sectional area of the pipe bending deformation must not exceed 1 3 of...

Page 12: ...e or valve No power cable is attached to this equipment The user can select the power cable by reference to the stipulated power supply specifications No joint of wires is allowed Upon completion of w...

Page 13: ...ng issues before trial operation and the box for the confirmed items Perform the trial run only after the outdoor unit has been powered on for over 12 hours Check that all valves are opened before tri...

Page 14: ......

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