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5. WIRING

 

WARNING

Before starting installation work, turn off the power of this unit and the 
connection destination. Do not turn on the power again until installation 
is completed. Otherwise, it will cause electric shock or 

fi

 re.

Use the accessories or speci

fi

 ed connection cable. Do not modify power 

supply cable and connection cables other than those speci

fi

 ed, do not 

use extension cables, and do not use independent branch wiring. It may 
cause electric shock or 

fi

 re.

Install the connection cables securely to the terminal block. Con

fi

 rm that 

external force is not applied to the cable. Use connection cables made 
of the speci

fi

 ed cable. If intermediate connection or insertion 

fi

 xing are 

imperfect, it will cause electric shock, 

fi

 re, etc.

When connecting the connection cable, route the cables so that the 
cover of this unit is securely 

fi

 xed. If the cover is imperfectly 

fi

 xed, it may 

cause 

fi

 re or overheating of the terminals.

Perform earth (ground) work positively. Do not connect the earth (ground) 
cable to a telephone cable, water pipe, or conductor rod.

Always fasten the outside covering of the connection cables with the 
cable clamp. (If the insulator is chafed, electric leakage may occur.)

Perform all wiring works so that the user does not touch the wiring. Do-
ing so will cause injury or electric shock.

If any cable is damaged, do not repair or modify it yourself. Improper 
work will cause electric shock or 

fi

 re.

 

CAUTION

Do not bind the remote controller cable and the external input cable 
together with or parallel to the power supply cable of the indoor and 
outdoor units. It may cause erroneous operation.

When performing wiring work, be careful not to damage the cable or 
injure yourself. Also, connect the connectors securely. Loose connectors 
will cause trouble, heating, 

fi

 re, or electric shock.

Install the indoor and outdoor units, power supply cable, connection 
cable and remote controller cable 1 m (40 in.) away from television and 
radio to avoid distorted images and noise. Otherwise, a malfunction 
could result.

Perform wiring so that water does not enter this unit along the external 
wiring. Always install a trap to the wiring or take other countermeasures. 
Otherwise it will cause trouble or electric shock or 

fi

 re.

Con

fi

 rm the name of each unit and name of each terminal block of the 

unit and connect the wiring in accordance with the directions given in the 
manual so that there is no incorrect wiring. Incorrect wiring will damage 
the electric parts and cause smoke and 

fi

 re.

When installing the connection cables near a source of electromagnetic 
waves, use shielded cable.
Otherwise, a breakdown or malfunction could result.

The terminal screws and earth (ground) screws have different shapes. 
Be sure to install the screws in the correct locations. If the screws are 
installed in the wrong locations, the circuit board could be damaged.

Maximum connectable number of remote controllers by cable size and the 
length.

Cable size

Max. connectable number of

remote

controllers

AWG

mm²

L* 

 100 m

100 m < L*

 250 m

250 m < L*

 500 m

VRF RAC VRF RAC VRF RAC

16

1.25

4

2

4

2

4

2

18

0.75 (1.25 > S* 

 0.75)

4

2

4

2

2

2

20

0.5 (0.75 > S* 

 0.5)

4

2

2

2

2

2

22

0.3 (0.5 > S* 

 0.3)

4

2

1

1

1

1

* L:  Total cable length, *S:  Cable size

4.  SELECTING AN INSTALLATION LOCATION

4. 1. 

Dimensions

This product is comprised of a body and cover.

Unit : mm (in.)

For M4x16mm 

screws

Hole pitch

30

(1-3/16)

30

(1-3/16)

25

(1)

25

(1)

Hole:  2 x 8 (1/16 x 5/16)

Hole:  2-Ø5 (3/16)

Hole:  2-Ø7 (1/4)

For code (   Ø5)

For code (> Ø5)

For code (   Ø7)

For code (> Ø7)

3-Ø4.5 (3/16)

98 (3-7/8)

117 (4-5/8)

2-Ø10 (3/13)

2-Ø8 (5/16)

121 (4-3/4)

140 (5-1/2)

10 (3/8)

43 (1-11/16)

For open case

4. 2. 

Speci

fi

 cations

Power consumption (W)

0.6

Temperature °C (°F)

Operating

0–46 (32–114)

Packaged

-10–60 (14–140)

Humidity (%)

Packaged

0–95 (RH); 
No condensation

Dimensions 
H x W x D  mm (in.)

43 × 117 × 140
(1-11/16 × 4-5/8 × 5-1/2)

Weight g (oz.)

250 (9)

9374707157-02_IM.indb   2

9374707157-02_IM.indb   2

12/2/2016   5:22:44 PM

12/2/2016   5:22:44 PM

Summary of Contents for UTY-TERX

Page 1: ...ONTROLLER For authorized service personnel only 安装说明书 安装说明书 外部开关控制器 仅针对授权的专业维修人员 English 中 文 中 文 PART NO 9374707157 02 Original instructions UTY TERX 9374707157 02_IM indb i 9374707157 02_IM indb i 12 2 2016 5 22 43 PM 12 2 2016 5 22 43 PM ...

Page 2: ...ntive measures so that they cannot reach the unit CAUTION This mark indicates procedures which if improp erly performed might possibly result in personal harm to the user or damage to property Pay abundant care when transporting this unit because it is a precision device Improper transportation will cause trouble Do not touch the switches with sharp objects Doing so will cause injury trouble or el...

Page 3: ...er supply cable connection cable and remote controller cable 1 m 40 in away from television and radio to avoid distorted images and noise Otherwise a malfunction could result Perform wiring so that water does not enter this unit along the external wiring Always install a trap to the wiring or take other countermeasures Otherwise it will cause trouble or electric shock or fire Confirm the name of e...

Page 4: ...controller Y1 Y2 Y3 External input EXIN1 EXIN2 0 5 to 0 6 N m 4 4 to 5 3 lbf in 5 to 6 kgf cm 5 1 Wiring method Indoor unit VRF single multi Wired remote controller Wired remote controller cable This product External input cable Card key Window switch Connectable types of indoor unit and remote controller The wired remote controller shown in the table below can be connected The indoor unit that ca...

Page 5: ...e DIP switches Before opening the cover of this unit completely discharge static electric ity charged on your body Otherwise failure or malfunction could result Do not touch the circuit board and circuit board parts directly with your hands Otherwise injury or electric shock could result Tightening the mounting screws too tight will damage the body of this unit 6 1 Connecting the cables 1 Turn off...

Page 6: ...connection method is differ ent depending on each model Modify the remote controller cable as per below description and connect it For the details refer to the installation manual of the indoor unit to be used 1 When connecting to the connector Case 1 For non polar 2 wire Use a tool to cut off the terminal on the end of the remote controller cable and then remove the insulation from the cut end of...

Page 7: ...le is 50m 164 ft 9 CIRCUIT BOARD SETTING The circuit board has a rotary switch DIP switch and LED as shown below 1 About connections 1 1 2WIRE 3WIRE settings SET3 Remote controller 2WIRE 3WIRE switching SW Default 2WIRE Set matched with the connection method of the remote controller cable to be connected 1 2 Master settings SET 2 1 When setting the SET3 to 3WIRE DIP SW OFF ON SET 2 1 Master Slave ...

Page 8: ... Mode 1 SW104 1 1 Polarity setting SW104 3 4 DIP SW Setting OFF ON SW104 3 No function Fixed to OFF SW104 4 CH2 external switch detection condition ON OFF is SCENE3 OFF ON is SCENE4 OFF ON is SCENE3 ON OFF is SCENE4 Factory setting 2 Rotary switch setting EXIN Rotary switch setting value Setting SCENE3 SCENE4 0 Operation stop Operation Stop 1 Remote controller pro hibition all operation All operat...

Page 9: ... If operation mode is set to No change 2 the operation mode is not changed If this scene is run 1 If operation mode is COOL or DRY the set temperature will be changed to set temperature 1 2 If operation mode is HEAT the set temperature will be changed to set temperature 2 3 If operation mode is AUTO or fan the set temperature is not changed Remote controller prohibition all operation SW108 3 4 SCE...

Page 10: ...speed SW105 3 4 ON OFF Hi Operation mode SW106 1 2 ON OFF COOL All operation SW106 3 4 OFF OFF No change Set tempera ture 1 SW109 1 2 3 4 OFF OFF OFF ON 23 C 74 F Set tempera ture 2 SW110 1 2 3 4 OFF OFF OFF OFF No change 2 Example setting 2 When a window is opened operation stop remote controller opera tion prohibited return to original state when the window is closed For specifications where con...

Page 11: ...h settings method refer to the installation instruction sheet of each unit 3 Turn on the power for the VRF system or multi system or single model 4 Power will be supplied from the system to the convertor This product will be initialized and the power turned on LED1 green and LED2 orange will flash After initial setting is completed operation will be restarted auto matically LED1 green lights This ...

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