Page 5 - English; Safety Precautions; WARNING; CAUTION
1 ■ English Safety Precautions • The precautions described herein are classified as WARNING and CAUTION. They both contain important informa- tion regarding safety. Be sure to observe all precautions without fail. • Meaning of WARNING and CAUTION notices WARNING .... Failure to follow these instruct...
Page 6 - Accessories
■ English 2 Accessories Accessories supplied with the outdoor unit: Precautions for Selecting the Location 1) Choose a place solid enough to bear the weight and vibration of the unit, where the operation noise will not be amplified.2) Choose a location where the hot air discharged from the unit or t...
Page 7 - Installation Drawings
3 ■ English Indoor/Outdoor Unit Installation Drawings For installation of the indoor units, refer to the installation manual which was provided with the units.(The diagram shows a wall-mounted indoor unit.) CAUTION • Do not connect the embedded branch piping and the outdoor unit when only carrying o...
Page 8 - Installation
■ English 4 Installation • Install the unit horizontally.• The unit may be installed directly on a concrete verandah or a solid place if drainage is good.• If the vibration may possibly be transmitted to the building, use a vibration-proof rubber (field supply). 1. Connections (connection port) Inst...
Page 9 - Outdoor Unit Installation Guideline; Wall facing one side
5 ■ English Outdoor Unit Installation Guideline • Where a wall or other obstacle is in the path of outdoor unit’s inlet or outlet 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. Selecting a ...
Page 10 - Refrigerant Piping Work; Installing outdoor unit; Refrigerant piping
■ English 6 Refrigerant Piping Work 1. Installing outdoor unit 1) When installing the outdoor unit, refer to “Precautions for Selecting the Location” on page 2 and the “Indoor/Outdoor Unit Installation Drawings” on page 3. 2) If drain work is necessary, follow the procedures below. 2. Drain work (on...
Page 11 - Purging air and checking gas leakage
7 ■ English Refrigerant Piping Work 4. Purging air and checking gas leakage WARNING • Do not mix any substance other than the specified refrigerant (R410A) into the refrigeration cycle.• When refrigerant gas leaks occur, ventilate the room as soon and as much as possible.• R410A, as well as other re...
Page 12 - Refilling the refrigerant; Charging with refrigerant; Important information regarding the refrigerant used
■ English 8 5. Refilling the refrigerant Check the type of refrigerant to be used on the machine nameplate. Precautions when adding R410AFill from the gas pipe in liquid form. It is a mixed refrigerant, so adding it in gas form may cause the refrigerant composition to change, preventing normal opera...
Page 13 - Precautions for Laying Refrigerant Piping
9 ■ English Refrigerant Piping Work Precautions for Laying Refrigerant Piping • Cautions on pipe handling 1) Protect the open end of the pipe against dust and moisture.2) All pipe bends should be as gentle as possible. Use a pipe bender for bending. • Selection of copper and heat insulation material...
Page 14 - Pump Down Operation; Forced cooling operation
■ English 10 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 caps on the liquid and the gas stop valves at the pipes for rooms A and B. 2) Run the unit on forced cooling. (Refer to the below.)3) After 5 to 10...
Page 15 - Wiring
11 ■ English Wiring WARNING • Do not use tapped wires, stranded wires ( CAUTION 1)), extension cords, or starburst connections, as they may cause over- heating, electrical shock, or fire. • Do not use locally purchased electrical parts inside the product. (Do not branch the power for the drain pump,...
Page 16 - Maximum Power Input Limitation Setting
■ English 12 Maximum Power Input Limitation Setting WARNING Always shut off the power supply breaker before starting. • The Maximum Power Input Limitation needs to be set when the unit is installed.• This function limits the power input of the unit to 1700W.• It is recommended for locations with low...
Page 17 - ECONO Mode Prohibition Setting
13 ■ English ECONO Mode Prohibition Setting WARNING Always shut off the power supply breaker before starting. • This setting disables the input control signal from the remote controller.• Use this setting when you wish to block reception of input controls (cooling/heating) from indoor unit remote co...
Page 18 - Trial Operation and Testing; Trial operation and testing
■ English 14 Trial Operation and Testing • Before starting the test run, measure the voltage at the primary side of the safety breaker. • Check that all liquid and gas stop valves are fully open.• Check that piping and wiring all match. 1. Trial operation and testing 1) To test cooling, set for the ...