Page 2 - English; Contents; Installation 3; Indoor Unit Installation 9
2 English Contents Installation 3 Safety Information on Installation 3Preparation 5 Step 1.1 Choosing the installation locationStep 1.2 Checking and preparing accessories and toolsStep 1.3 Drilling a hole through the wallStep 1.4 Taping the pipes, cables, and drain hose Indoor Unit Installation 9 St...
Page 3 - General information; Safety Information on Installation; Installation
3 English Installation Carefully follow the precautions listed below because they are essential to guarantee the safety of both the air conditioner and the workers. • Always disconnect the air conditioner from the power supply before servicing it or accessing its internal components. • Verify that i...
Page 4 - breaker
4 English Installation fires, explosions or injuries. • Our units must be installed in compliance with the spaces indicated in the installation manual to ensure either accessibility from both sides or ability to perform routine maintenance and repairs. The units’ components must be accessible and th...
Page 5 - Overview of installation location requirements; CAUTION; Comply with the length and height limits; When installing 1 outdoor unit; Preparation
5 English Installation Step 1.1 Choosing the installation location If using a multi system, install as described in the installation manual supplied with the outdoor unit. Overview of installation location requirements CAUTION CAUTION • Comply with the length and height limits described in the figur...
Page 6 - Accessories
6 English Installation When installing more than 1 outdoor unit (5 cases) (Unit: mm) 1500 600 3000 200 3000 300 1500 600 600 1500 300 300 600 600 600 500 300 500 300 CAUTION • If the outdoor unit is installed with any insufficient clearance, it may generate sound and affect the whole product. • Be s...
Page 7 - NOTE; Tools
7 English Installation If using a multi system, refer to the manual supplied with the outdoor unit. Optional accessories Insulated assembly pipe, Ø 6.35 mm (1) Insulated assembly pipe, Ø 9.52 mm (1) **09******* **12******* Insulated assembly pipe, Ø 12.70 mm (1) **18******* Insulated assembly pipe, ...
Page 8 - Step 1.3 Drilling a hole through the
8 English Installation Step 1.3 Drilling a hole through the wall Before fixing the installation plate to a wall and then fixing the indoor unit to the installation plate, a window frame, or a gypsum board, you must determine the position of a hole (with 65 mm inner diameter) through which the pipe b...
Page 9 - Step 2.1 Disassembling the cover; Step 2.2 Disassembling the; Indoor Unit Installation
9 English Installation Please scan this QR code for detail video of indoor unit installation. Step 2.1 Disassembling the cover panel 1 Remove the cap screws, then the screws. Cap screw Screw Phillips screwdriver Flat-head screwdriver 2 Unlock the side hooks ( , ), then centre hooks ( ). Then unlock ...
Page 11 - WARNING; Connect the wires firmly so that wires cannot be; power cable; • The compression dimension should be 8.0.
11 English Installation WARNING • Connect the wires firmly so that wires cannot be pulled out easily. (If they are loose, it could cause burn-out of the wires.) Step 2.4 Optional: Extending the power cable 1 Prepare the following tools. Tools Spec Shape Crimping pliers MH-14 Connection sleeve (mm) 2...
Page 12 - Make sure that the connection parts are not exposed; Step 2.5 Installing and connecting
12 English Installation CAUTION • Make sure that the connection parts are not exposed to outside. • Be sure to use insulation tape and a contraction tube made of approved reinforced insulating materials that have the same level of withstand voltage with the power cable. (Comply with the local regula...
Page 13 - direction of the drain hose
13 English Installation Step 2.7 Optional: Changing the direction of the drain hose Pour water in the direction of arrow. <Front view> <Side view> Direction of the drained water Drain pan outlet Rubber cap CAUTION • Make sure that the indoor unit is in upright position when you pour wate...
Page 15 - When fixing the indoor unit on a wall; When fixing the indoor unit on a window frame
15 English Installation CAUTION • If you need a pipe longer than specified in piping codes and standards, you must add refrigerant to the pipe. Otherwise, the indoor unit may freeze. • While removing burrs, put the pipe face down to make sure that the burrs do not get in to the pipe. Liquid service ...
Page 16 - When fixing the indoor unit on a gypsum board; Step 2.12 Assembling the cover panel
16 English Installation When fixing the indoor unit on a gypsum board 1 Use stud finder to find out locations of the studs. 2 Fix the plate hanger on two studs. CAUTION • If you fix the indoor unit on a gypsum board, use only specified anchor bolts on reference positions. Otherwise, the gypsum surro...
Page 17 - Step 3.1 Fixing the outdoor unit in; Step 3.2 Connecting the power; Outdoor Unit Installation
17 English Installation If using a multi system, install as described in the installation manual supplied with the outdoor unit. Step 3.1 Fixing the outdoor unit in place X Y Rubber leg 1 Place the outdoor unit as directed on the top of the unit to let the discharged air out properly. 2 Fix the outd...
Page 18 - Step 3.3 Evacuating the air
18 English Installation Control box Remove the screw for the control box cover Remove the gas and liquid service port caps For connecting the refrigerant pipes Gas service port <Low pressure> Liquid service port <High pressure> Connect the gas and liquid refrigerant pipes Step 3.3 Evacua...
Page 19 - Step 3.4 Adding refrigerant; regulation regarding the refrigerant
19 English Installation 3 Open the valve of the low pressure side of manifold gauge anticlockwise. 4 Evacuate the air in the connected pipes using the vacuum pump for about 15 minutes. • Make sure that pressure gauge shows -0.1 MPa (-76 cmHg, 5 torr) after about 10 minutes. This procedure is very im...
Page 20 - a Factory refrigerant charge of the product: see; The filled-out label must be adhered in the
20 English Installation Refrigerant type GWP value R-410A 2088 • GWP=Global Warming Potential • Calculating tCO 2 e : kg x GWP / 1000 Unit Kg tCO 2 e ① , a ② , b ①+② , c NOTE a Factory refrigerant charge of the product: see unit name plate b Additional refrigerant amount charged in the field (Refer ...
Page 21 - Installation Inspection; Step 4.1 Performing the gas leak tests
21 English Installation Installation Inspection Step 4.1 Performing the gas leak tests 1 Before inspecting the leakage, use a torque wrench to close the cap for the stop valve. (Comply with a tightening torque for each size of the diameter, and tighten the cap firmly to prevent any leakage.) Tighten...
Page 22 - Error indicator
22 English Installation When error occurs, take necessary measures by referring to the following table. For more information on necessary measures for errors, refer to the service manual. Error indicator Error Measures for the installer to take Display LED Display LED 1 LED 2 LED 3 / / Communication...
Page 23 - Step 4.3 Performing final check and trial; Pumping down for removing the product
23 English Installation Step 4.3 Performing final check and trial operation 1 Check the following: • Strength of the installation site • Tightness of pipe connection to detect gas leak • Electric wiring connection • Heat-resistant insulation of the pipe • Drainage • Grounding conductor connection • ...
Page 24 - Only for multi system
24 English Installation Only for multi system (Wried remote controller, central remote controller etc.) 1 Turn the power off and take off the cover panel of the indoor unit. 1 2 2 Attach the Sub PCB to the Case Sub PCB. 3 Assemble the Case Sub PCB to the indoor unit. Sub PCB Case Sub PCB 4 Find the ...
