Safety Precautions • The precautions described herein are classified as WARNING and CAUTION. They both contain important information regarding safety. Be sure to observe all precautions without fail. • Meaning of WARNING and CAUTION notices WARNING..Failure to follow these instructions properly may result in personal injury or loss of life. CAUTION..Failure to observe these instructions properly may result in property damage or personal injury, which may be serious depending on the circumstances.
• 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. •...
Outdoor Unit Installation Drawings Max. allowable length Min. allowable length 1.5m Max. allowable height Additional refrigerant Wrap the insulation pipe with required for refrigerant the finishing tape from bottom 20g/m to top. pipe exceeding 10m in length. Gas pipe O.D. 9.5mm Liquid pipe O.D.
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 following 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...
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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.
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Outdoor Unit Installation Evacuating the air with a vacuum pump and checking gas leakage • When piping work is completed, it is necessary to evacuate the air with a vacuum pump 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.
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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.
Standby Electricity Saving The standby electricity saving function turns OFF power supply to the outdoor unit and sets the indoor unit into standby electricity saving mode, thus reducing the power consumption of the air conditioner. The standby electricity saving function works on the following indoor units. FTXL20G2V1B CAUTION The standby electricity saving function cannot be used for models other than the specified ones.
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.
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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.
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Wiring Wiring diagram Terminal strip Field wiring Connector Relay connector Connec ion Terminal Black Orange Blue Brown White Green Yellow Notes Refer to the nameplate for power requirements. IN CASE OF COOLING ONLY TYPE In case of cooling only type INDOOR Indoor OUTDOOR...
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. • In cooling mode, select the lowest programmable temperature; in heating mode, select the highest programmable temperature.