Daikin RXB-C Installation Manual
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Daikin RXB-C Installation Manual

R410a split series
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Table of Contents

INSTALLATION
MANUAL
R410A Split Series
Models
RXB20C2V1B
RXB25C2V1B
RXB35C2V1B
ARXB25C2V1B
ARXB35C2V1B

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Summary of Contents for Daikin RXB-C

  • Page 1 INSTALLATION MANUAL R410A Split Series Models RXB20C2V1B RXB25C2V1B RXB35C2V1B ARXB25C2V1B ARXB35C2V1B...
  • Page 2 3P363628-6F...

  • Page 3: Safety Precautions

    Safety Precautions • Read these Safety Precautions carefully to ensure correct installation. • This manual classifies the precautions into WARNING and CAUTION. Be sure to follow all the precautions below: they are all important for ensuring safety. WARNING ..Failure to follow any of WARNING is likely to result in such grave consequences as death or serious injury. CAUTION ..Failure to follow any of CAUTION may result in grave consequences in some cases.

  • Page 4: Precautions For Selecting The Location

    • Make sure to provide for adequate measures in order to prevent that the outdoor unit be used as a shelter by small animals. Small animals making contact with electrical parts can cause malfunctions, smoke or fire. Please instruct the customer to keep the area around the unit clean. •...

  • Page 5: Outdoor Unit Installation Drawings

    Outdoor Unit Installation Drawings Wrap the insulation pipe with the finishing tape from bottom to top. Max. allowable length Min. allowable length 1.5m Max. allowable height Additional refrigerant required for refrigerant 20g/m pipe exceeding 10m in length. Gas pipe O.D. 9.5mm Liquid pipe O.D.

  • Page 6: Precautions On Installation

    Installation Guidelines • Where a wall or other obstacle is in the path of outdoor unit’s intake or exhaust airflow, follow the installation guidelines below. • For any of the below installation patterns, the wall height on the exhaust side should be 1200mm or less. Wall facing one side Walls facing two sides More than 50...

  • Page 7: Flaring The Pipe End

    Outdoor Unit Installation Flaring the pipe end. 1) Cut the pipe end with a pipe cutter. (Cut exactly at right angles.) Remove burrs 2) Remove burrs with the cut surface facing downward so that the chips do not enter the pipe. Flaring Set exactly at the position shown below.

  • Page 8: Purging Air And Checking Gas Leakage

    Outdoor Unit Installation Purging air and checking gas leakage. • When piping work is completed, it is necessary to purge the air and check for gas leakage. WARNING 1) Do not mix any substance other than the specified refrigerant (R410A) into the refrigeration cycle. 2) When refrigerant gas leaks occur, ventilate the room as soon and as much as possible.

  • Page 9: Refrigerant Piping Work

    Outdoor Unit Installation Refilling the refrigerant. Check the type of refrigerant to be used on the machine nameplate. Precautions when adding R410A Fill from the liquid pipe in liquid form. It is a mixed refrigerant, so adding it in gas form may cause the refrigerant composition to change, preventing normal operation. 1) Before filling, check whether the cylinder has a siphon attached or not.

  • Page 10: Pump Down Operation

    Pump Down Operation In order to protect the environment, be sure to pump down when relocating or disposing of the unit. 1) Remove the valve cap from liquid stop valve and gas stop valve. Hexagonal 2) Carry out forced cooling operation. wrench Liquid 3) After five to ten minutes, close the liquid stop valve with a hexagonal wrench.
  • Page 11 Wiring WARNING 1) Do not use tapped wires, stranded wires, extension cords, or starburst connections, as they may cause overheating, electrical shock, or fire. 2) Do not use locally purchased electrical parts inside the product. (Do not branch the power for the drain pump, etc., from the terminal block.) Doing so may cause electric shock or fire.
  • Page 12 CAUTION When connecting the connecting wires to the terminal board using a single core wire, be sure to perform curling. Problems with the work may cause heat and fires. Excessive strip length Strip wire end may cause electrical shock or leakage. to this point.

  • Page 13: Test Run And Final Check

    Test Run and Final Check Trial operation and testing. 1-1 Measure the supply voltage and make sure that it falls in the specified range. 1-2 Trial operation should be carried out in either cooling or heating mode.  For heat pump •...
  • Page 16 3P341265-6G 2014.10...

This manual is also suitable for:

Arxb-cRxb20c2v1bRxb25c2v1bRxb35c2v1bArxb25c2v1bArxb35c2v1b

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