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UTP-RU08AH
UTP-RU12AH
TM
INSTALLATION MANUAL
MANUEL D'INSTALLATION
UNITÉ DE DÉRIVATION DE RÉFRIGÉRANT
Pour les techniciens de service agréés uniquement.
MANUAL DE INSTALACIÓN
Solo para personal de mantenimiento autorizado.
For authorized service personnel only.
Unidad de derivación de refrigerante
PART NO. 9366247074-03
RB UNIT
Table of Contents
Related Manuals for Fujitsu AIRSTAGE UTP-RU08AH
Summary of Contents for Fujitsu AIRSTAGE UTP-RU08AH
- Page 1 INSTALLATION MANUAL RB UNIT For authorized service personnel only. MANUEL D’INSTALLATION UNITÉ DE DÉRIVATION DE RÉFRIGÉRANT Pour les techniciens de service agréés uniquement. MANUAL DE INSTALACIÓN Unidad de derivación de refrigerante Solo para personal de mantenimiento autorizado. UTP-RU08AH UTP-RU12AH PART NO. 9366247074-03...
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Page 2: Table Of Contents
INSTALLATION MANUAL 1.2. Special precautions PART NO. 9366247074-03 VRF system RB unit When Wiring Contents ELECTRICAL SHOCK CAN CAUSE SEVERE PERSONAL INJURY OR DEATH. ONLY A QUALIFIED, EXPERIENCED ELECTRICIAN SHOULD ATTEMPT TO WIRE THIS SYSTEM. 1. SAFETY PRECAUTIONS..................1 1.1. IMPORTANT! Please read before starting ............1 •... -
Page 3: About This Product
2.2. Special tools for R410A WARNING During installation, make sure that the refrigerant pipe is attached fi rmly before you run the compressor. WARNING Do not operate the compressor under the condition of refrigerant piping not attached To install a unit that uses the R410A refrigerant, use dedicated tools and piping properly with 2-way or 3-way valve open. -
Page 4: Optional Parts
2.5. About unit of the length Do not install this unit in the following areas: All Fujitsu General products are manufactured to metric units and tolerances. United • Area with high salt content, such as at the seaside. It will deteriorate metal parts, States customary units are provided for reference only. - Page 5 5.2.1. Ceiling hanging ■ UTP-RU08AH Be sure to install so that the top side faces up. ■ UTP-RU12AH a= 2-9/16 (65), b= 1-15/16 (50) c= 2-13/16 (72), d= 4-7/16 (113.5) 8-7/16 8-7/16 26 (660) (214.5) (214.5) [Unit: in (mm)] a= 2-9/16 (65), b= 1-15/16 (50) c= 2-13/16 (72), d= 4-7/16 (113.5) 8-7/16 8-7/16...
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Page 6: Hanger Bolt Installation
5.5.1. Removing the pinch pipe Service access [Unit: in (mm)] Melt the brazing fi ller metal on connecting part using a torch and remove the pinch pipe. ■ If using the R-side Rubber cap Branches that are not in use should be closed off with the closed-end pipe (accessories). -
Page 7: Selecting The Pipe Material
Type B) If connecting 2 or more indoor units downstream of the RB unit Table 4) RB unit pipe size Select the connection pipe from Table 1, based on the Outdoor unit side Indoor unit side total capacity of indoor units connected downstream. Outside diameter [in (mm)] Outside diameter [in (mm)] Suction gas pipe... -
Page 8: Pipe Connection
6.4.2. Installing cabinet insulation 6.3. Pipe connection If the relative humidity of the area may rise above 80%, install cabinet insulation (acces- 6.3.1. Brazing sories) in the following location: [Unit: in (mm)] CAUTION If air or different type of refrigerant enters the refrigeration cycle, the internal pres- sure in the refrigeration cycle will become abnormally high and prevent the unit from exerting its full performance. -
Page 9: Electrical Requirement
CAUTION 7.3. Wiring Ground (earth) the unit. • Before attaching the cable to terminal block. Do not connect the ground (earth) cable to a gas pipe, water pipe, lightning rod, or a telephone ground (earth) cable. 7.3.1. Power supply cable Improper grounding (earthing) may cause electric shock. - Page 10 (7) Please do not fi x 2 power supply cables with 1 screw. Ring terminal Sleeve Screw with spe- cial washer Screw with special washer Ring terminal Ring Cable terminal Cable Terminal block 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.
- Page 11 7.3.3 Wiring method The wiring example for RB units ,outdoor units and indoor units is shown in the fi gure. Breaker shall be located in sight from and readily accessible from all RB units. *1):Cooling only Breaker 1: Ground Fault Equipment Breaker (GFEB) Transmission Outdoor unit Breaker 2: Maximum Circuit Breaker (MAX.
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Page 12: Field Setting
7.3.4. Work procedure Detail M1 : Power supply cable (1) Remove the control box cover. (4 screws) Ground (Earth) Lock nut Wiring connecting port Lock nut Conduit connector (2) Connect the transmission cable to the transmission cable terminal. (3) Firmly attach the transmission cables using the accessory cable ties. RU08AH : Up to 9 locations, RU12AH : Up to 13 locations (4) Attach the conduit connector on the wiring connecting port. -
Page 13: Address Setting
9. EXTERNAL INPUT 8.2. Address setting (1) RB unit address When connecting multiple RB units to 1 refrigerant system, set the address at RB • RB unit can be switched cooling priority and heating priority by using RB AD SW. unit PC board terminal. -
Page 14: Cooling/Heating Priority Function
Apply voltage terminal (CNA02, CNA102, CNA202, CNA302) 10. MERGING 2 OR 4 BRANCHES When a power supply must be provided at the input device you want to connect, use • An indoor unit with a capacity exceeding 27,000 Btu/h can be connected by the Apply voltage terminal (CNA02, CNA102, CNA202, CNA302) merging 2 or 4 indoor-unit-side outlet branches. -
Page 15: Electrical Wiring
*1) Connection type 1 10.3. Electrical wiring RB unit 10.3.1 Wiring method Branch Branch Branch Branch D or H or L C or G or K B or F or J A or E or I ■ 2-branch merging Indoor unit Indoor unit Indoor unit Transmission... -
Page 16: Field Setting
10.4. Field setting 4-branches merging Branches that PC board DIP switch SET2 setting can be merged 10.4.1 Address setting • For the basic setting method, refer to "8.2. Address setting". Use the same setting value on branches branches Branches A to D •...