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CAUTION

When handling PC board, static electricity charged in the body may cause 
malfunction of the PC board. Follow the cautions below:

• Establish an earth (ground) for the RB units , indoor units, outdoor units and 

peripheral devices.

•  Cut power (breaker) off.
•  Touch metal part of the RB units, indoor units and outdoor units for more than 

10 seconds to discharge static electricity charged in the body.

•  Do not touch terminals of parts and patterns implemented on PC board.

7.2. Electrical requirement

Voltage rating

230 V

Operating range

198 to 264 V

• Select the power cable type and size in accordance with relevant local and national 

regulations.

• Speci

fi

 cations for local wiring power cord and branch wiring are in compliance with 

local code.

• Max. wire length: Set a length so that the voltage drop is less than 2%. Increase the 

wire diameter when the wire length is long.

Breaker should be installed at every refrigerant system. Do not use a breaker in a 
different refrigerant system.
Refer to the table for the breaker speci

fi

 cations of each installation condition. Perform 

the power crossover wiring within the range of the same refrigerant system. When the 
crossover wiring is done, make a connection for RB units to satisfy conditions A and B 
below.

A. Current breaker requirements

Model

MCA

MFA

UTP-RX01AH

0.13 A

20 A

UTP-RX01BH

0.19 A

UTP-RX01CH

0.26 A

MCA: Minimum Circuit Ampacity
MFA: Maximum Fuse Ampacity

When the power crossover wiring is done, make it so that the total of the MCA of the 
connected RB units and indoor units does not exceed the 15 A. For indoor unit MCA, 
refer to the indoor unit installation manual.
If the capacity of connected RB units and indoor units exceeds the upper limit, either 
add breakers or use a breaker with a greater capacity.

B. Earth leakage breaker requirements

Breaker capacity

Connectable RB units and indoor units

30 mA, 0.1 sec or less

44 or less *

100 mA, 0.1 sec or less

45 to 148

* If the total number of units connected to the breaker exceeds 44, either add a 30mA 

breaker, or use breakers with a greater capacity.

7.2.1. Cable speci

fi

 cations

Follow the speci

fi

 cations below for the power supply and transmission cable.

Recommended 

cable size 

(mm

2

)

Cable type

Remark

Power supply 
cable

2.5

Type60245 
IEC57 or 
equivalent

1ø 50 Hz 198 to 264 V 
2 Cable + earth (ground)

Transmission 
cable

0.33

LONWORKS 
compatible 
cable

22 AWG LEVEL 4 
(NEMA) non-polar 2 
core, twisted pair solid 
core diameter 0.65 mm

7.3. Wiring

7.3.1. Power supply cable

Keep the ground cable longer than the other cables.

20 mm

Power supply cable

30 mm

Earth (Ground)

cable

(1) Use ring terminals with insulating sleeves as shown in the 

fi

 gure below to connect 

to the terminal block.

(2) Securely clamp the ring terminals to the cables using an appropriate tool so that the 

cables do not come loose.

(3) Use the speci

fi

 ed cables, connect them securely, and fasten them so that there is 

no stress placed on the terminals.

(4) Use an appropriate screwdriver to tighten the terminal screws.

  Do not use a screwdriver that is too small, otherwise, the screw heads may be 

damaged and prevent the screws from being properly tightened.

(5) Do not tighten the terminal screws too much, otherwise, the screws may break.

(6) See the table for the terminal screw tightening torques.

(7) Please do not 

fi

 x 2 power supply cables with 1 screw.

Strip 10 mm

Sleeve

Screw with spe-
cial washer

Screw with 
special washer

Ring terminal

Cable

Cable

Terminal block

Ring terminal

Ring 
terminal

 

WARNING

Use ring terminals and tighten the terminal screws to the specified torques, 
otherwise, abnormal overheating may be produced and possibly cause heavy 
damage inside the unit.

Tightening torque

M4 screw 
(Power supply / L, N, GND)

1.2 to 1.8 N·m 

(12 to 18 kgf·cm)

7.3.2. Transmission cable

30 mm

40 mm

Shielded cable 
(no 

fi

 lm)

GOOD

PROHIBITED

Different diameter

Connect to 1 side

 

WARNING

Tighten the terminal screws to the specified torques, otherwise, abnormal 
overheating may be produced and possibly cause heavy damage inside the unit.

Tightening torque

M3 screw 
(Transmission / X1, X2) 

0.5 to 0.6 N·m 

(5 to 6 kgf·cm)

 

CAUTION

To peel the 

fi

 lm from the lead cable, use a dedicated tool that will not damage the 

conductor cable.

When installing a screw on the terminal block, do not cut the cable by 
overtightening the screw. On the other hand, an under tightened screw can cause 
faulty contact, which will lead to a communication failure.

9366249047-03_IM.indb   Sec1:7

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2015/3/10   14:27:48

2015/3/10   14:27:48

Summary of Contents for Airstage UTP-RX01AH

Page 1: ...NSTALLAZIONE UNITÀ REFRIGERANTE SECONDARIA A uso esclusivo del personale tecnico autorizzato Ελληνικά Português ΕΓΧΕΙΡΙΔΙΟ ΕΓΚΑΤΑΣΤΑΣΗΣ ΜΟΝΆΔΑ ΔΙΑΚΛΆΔΩΣΗΣ ΨΥΚΤΙΚΟΎ Μόνο για εξουσιοδοτημένο τεχνικό προσωπικό MANUAL DE INSTALAÇÃO UNIDADE DE DERIVAÇÃO DE REFRIGERANTE Apenas para técnicos autorizados Русский Türkçe РУКОВОДСТВО ПО УСТАНОВКЕ МОДУЛЬ ВЕТКИ ОХЛАЖДЕНИЯ Только для авторизованного обслуживающ...

Page 2: ...rectly grounded and the supply line must be equipped with a dif ferential breaker in order to protect the persons The units are not explosion proof and therefore should not be installed in explosive atmosphere Do not turn on the power until all installation work is complete This unit contains no user serviceable parts Always consult authorized service per sonnel to repairs When moving consult auth...

Page 3: ...or connectable indoor units refer to the catalogue or the Design Technical manual 4 PIPING SPECIFICATIONS For details of piping specifications refer to the outdoor unit installation manual 5 INSTALLATION WORK 5 1 Selecting an installation location WARNING Take into consideration whether the place you install the main unit can fully with stand its weight For hanger bolts use embedded inserts or emb...

Page 4: ...33 18 22 147 172 298 147 89 Unit mm Top side A B C 198 155 124 206 48 75 198 268 30 Indoor unit side Outdoor unit side 400 400 100 Unit mm service access Service access A C B Outdoor unit side 500 or more 500 or more 20 or more 20 or more Ceiling hanging Installation limit Unit mm 5 2 2 Wall hanging 333 18 15 198 268 198 7 Unit mm service space grille 20 or more Installation limit 20 or more 300 o...

Page 5: ... Control box Control box cover Cable clamp 6 Change the control box attachment position 7 Attach the cable clamp ac cessory Thereafter put the cable in the cable clamp 8 Fix the control box position 4 screws 9 Attach Cover B to Cover A 1 screw 10 Attach Cover A 4 screws 11 Attach the control box cover 2 screws 5 7 Installation of the unit WARNING Perform installation in a location which can proper...

Page 6: ... ø12 7 1 2 Reducer 5 6 7 1 8 0 9 0 ø15 88 5 8 Reducer ø12 7 1 2 ø15 88 5 8 Reducer 11 2 12 5 14 0 ø19 05 3 4 ø12 7 1 2 ø19 05 3 4 18 0 ø19 05 3 4 ø15 88 5 8 Reducer ø19 05 3 4 Table 3 Connection pipe selection for when 2 to 8 indoor units are connected Total capacity of indoor unit kW Suction gas pipe mm in Discharge gas pipe mm in Gas pipe mm in 4 4 to 11 1 ø15 88 5 8 Reducer ø12 7 1 2 ø15 88 5 8...

Page 7: ...n Locally purchased Cable tie Locally purchased RB Unit 7 ELECTRICAL WIRING 7 1 Safety precautions for electrical wiring WARNING Electrical work must be performed in accordance with this Manual by a person certified under the national or regional regulations Be sure to use a dedicated circuit for the unit An insufficient power supply circuit or improperly performed electrical work can cause seriou...

Page 8: ...ly and transmission cable Recommended cable size mm2 Cable type Remark Power supply cable 2 5 Type60245 IEC57 or equivalent 1ø 50 Hz 198 to 264 V 2 Cable earth ground Transmission cable 0 33 LONWORKS compatible cable 22 AWG LEVEL 4 NEMA non polar 2 core twisted pair solid core diameter 0 65 mm 7 3 Wiring 7 3 1 Power supply cable Keep the ground cable longer than the other cables 20 mm Power supply...

Page 9: ...cable cannot be used to connect indoor units belonging to different RB groups GOOD PROHIBITED Refrigerant pipe RB group 1 RB group 1 RB group 2 RB group 2 Transmission line Transmission line L N L N L N L N L N L N Crossover wiring of power supply RB unit RB unit Pull box Power supply Power supply Power supply Breaker Power supply 230V 1ø 50Hz RB unit RB unit Power supply GOOD PROHIBITED Transmiss...

Page 10: ...ddress Manual address setting Setting example 2 RB AD 10 RB AD 1 Automatic address setting Set this switch to 00 at factory setting 0 to 63 Refrigerant circuit address Manual address setting Setting example 63 REF AD 10 REF AD 1 Automatic address setting Set this switch to 00 at factory setting 0 to 99 For details of automatic address setting please refer to the outdoor unit installation manual 8 ...

Page 11: ...OOLING HEATING PRIORITY FUNCTION Edge input only Connector Input signal Command CNA01 or CNA02 OFF ON Heating priority ON OFF Cooling priority CNA01 or CNA02 Priority mode Heating On Off Cooling 10 TEST RUN 10 1 Test run using Outdoor unit PC board Refer to the Installation Manual for the outdoor unit to perform the test run using the outdoor unit 10 2 Test run using Remote Controller Refer to the...

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