Page 2 - Contents; Safety Information
2 English Contents Safety Information 3 Safety Information 3 Installation Procedure 5 Step 1 Checking and preparing accessories 5 Step 2 Choosing the installation location 5 Step 3 Optional: Insulating the body of the indoor unit 8 Step 4 Installing the indoor unit 8 Step 5 Purging inert gas from th...
Page 3 - English; ty Inf; General information; WARNING; Do not pierce or burn.; Installing the unit; WARNING
3 English Safe ty Inf ormation WARNING ŷ Hazards or unsafe practices that may result in severe personal injury or death. CAUTION ŷ Hazards or unsafe practices that may result in minor personal injury or property damage. ŷ Carefully follow the precautions listed below because they are essential to gu...
Page 4 - Do not install the air conditioner in following places.; Always verify that a suitable grounding connection is available.; CAUTION; Make sure that you earth the cables.
4 English Safe ty Inf ormation Safety Information ŷ Do not install the product in a place where thermohygrostat is needed (such as server room, machinery room, computer room, etc.) Those places do not provide guaranteed operation condition of the product therefore performance can be poor in these pl...
Page 5 - Installation Procedure; Step 2 Choosing the installation location; Installation location requirements
5 Installation Pr ocedur e English Installation Procedure Step 1 Checking and preparing accessories The following accessories are supplied with the indoor unit. The type and quantity may differ, depending on the specifications. Insulation pipe Cable-tie Drain hose Installation manual Clamp User manu...
Page 7 - For the recessed installation of the circular panel; Spacing requirements
7 Installation Pr ocedur e English ŷ The circular panel is by default available in exposed installation. ŷ Make inspection holes on the ceiling for easier installation and maintenance, as shown in the following table. (The size of an inspection hole must be at least 450 mm x 450 mm.) ŷ A suspended c...
Page 8 - Step 4 Installing the indoor unit; NOTE
8 Installation Procedure Installation Pr ocedur e English ŷ Do not hold the discharge while carrying the indoor unit to avoid the possibility of breakage. ŷ You must hold the hanger plate on the corner and carry the indoor unit. Step 3 Optional: Insulating the body of the indoor unit If you install ...
Page 9 - For the recessed installation of the square panel.; You must install all of the suspension rods.
9 Installation Pr ocedur e English 2 Perform the following steps to install inspection holes in accordance with the panel type. a For the recessed installation of the square panel. ŷ Install an inspection hole to the direction of connection parts of the refrigerant pipe and the drain hose. (1 point)...
Page 10 - Place the pattern sheet on the indoor unit.; Step 6 Cutting and flaring the pipes; Slide a flare nut on to the pipe and modify the flare.
10 Installation Procedure Installation Pr ocedur e English 7 Adjust the unit to the appropriate position, taking into account the installation area for the front panel. ŷ Place the pattern sheet on the indoor unit. ŷ Adjust the space between the ceiling and the indoor unit by using a dimension gauge...
Page 11 - There are two refrigerant pipes of different diameters :
11 Installation Pr ocedur e English 5 Check that the flaring is correct, referring to the illustrations below for examples of incorrect flaring. Correct Inclined Damaged Surface Cracked Uneven Thickness Step 7 Connecting the assembly pipes to the refrigerant pipes There are two refrigerant pipes of ...
Page 12 - Step 8 Performing the gas leak test; Be sure to wrap insulation tightly without any gaps.; Select the insulation of the refrigerant pipe.
12 Installation Procedure Installation Pr ocedur e English Step 8 Performing the gas leak test To identify potential gas leaks on the indoor unit, inspect the connection area of each refrigerant pipe using a leak detector for R-410A. Before recreating the vacuum and recirculating the refrigerant gas...
Page 13 - Tighten the metal clamp as shown in the picture.
13 Installation Pr ocedur e English Pipe Pipe size (mm) Insulation type (heating/cooling) Remarks Standard (Less than 30°C, 85%) High humidity (Over 30°C, 85%) EPDM, NBR (mm) Liquid pipe Ø6.35 to Ø9.52 9t 9t The internal temperature is higher than 120°C. Ø12.7 to Ø19.05 13t 13t Gas pipe Ø6.35 13t 19...
Page 14 - Install air ventilation to drain condensation smoothly.
14 Installation Procedure Installation Pr ocedur e English CAUTION Check that the indoor unit is level with the ceiling by using the leveller. ŷ Install air ventilation to drain condensation smoothly. Air ventilation Ceiling ŷ If it is necessary to increase the height of the drain pipe, install the ...
Page 15 - Step 11 Performing the drainage test; Cool
15 Installation Pr ocedur e English ŷ Max. allowable bending angle. Indoor unit Max. 30˚ NOTE ŷ If a concentrated drain pipe is installed, refer to the figure below. Centralized horizontal drain pipe (more than 1/100 slope) Main drain pipe Full thread bolt hanger 1000 to 1500 mm 300 to 550 mm 200 mm...
Page 16 - Reassemble the control box cover.
16 Installation Procedure Installation Pr ocedur e English CAUTION ŷ When the float switch is not detected due to insufficient water on the drain pan, the drain pump will not work. ŷ If the power supply is directly connected to the L and N terminals, communication error message might appear. ŷ After...
Page 17 - – Do not remove the fuses with power on.
17 Installation Pr ocedur e English Step 13 Optional: Installing DPM (Digital Packaged Multi) NOTE To find DPM allowable indoor unit models according to outdoor unit models, refer to outdoor installation manual. ŷ When installing DPM, you should set "DPM setting" to the outdoor unit. ŷ You d...
Page 18 - Wiring terminals) 3 phase
18 Installation Procedure Installation Pr ocedur e English Wiring terminals) 3 phase 1(L) 2(N) L1(R) L2(S) L3(T) N F1 F2 F1 F2 L N Indoor power Main power cable Communication cable Indoor unit Outdoor unit NOTE ŷ Insert the power and the communication cables to the cable insert hole, then arrange an...
Page 19 - Prepare the following tools.; Method 1
19 Installation Pr ocedur e English Step 15 Optional: Extending the power cable 1 Prepare the following tools. Tools Spec Shape Crimping pliers MH-14 Connection sleeve (mm) 20xØ6.5 (HxOD) Insulation tape Width 19 mm Contraction tube (mm) 70xØ8.0 (LxOD) 2 As shown in the figure, peel off the shields ...
Page 20 - Apply heat to the contraction tube to contract it.; – Incomplete wire connections can cause electric
20 Installation Procedure Installation Pr ocedur e English 5 Apply heat to the contraction tube to contract it. Method 1 Method 2 Contraction tube Contraction tube 6 Wrap it with the insulation tape twice or more and position your contraction tube in the middle of the insulation tape. Method 1 Metho...
Page 23 - Auto
23 Installation Pr ocedur e English Steps Remote control display 9 Set the SEG11 and SEG12 values: a Set the SEG11 value by rotating the Wheel counterclockwise until the value you want to set appears on the remote control display. SEG11 b Set the SEG12 value by rotating the Wheel clockwise until the...
Page 25 - Remote controls
25 Installation Pr ocedur e English 3 Check whether the option values that you have set are correct by pressing the (Mode) button repeatedly [SEG2, SEG3] [SEG11, SEG12] [SEG21, SEG22] [SEG4, SEG5] [SEG14, SEG15] [SEG23, SEG24] [SEG6, SEG8] [SEG16, SEG17] [SEG9, SEG10] [SEG18, SEG20] 4 Save the optio...
Page 27 - Dry
27 Installation Pr ocedur e English Steps Remote control display 3 Set the SEG4 and SEG5 values: a Set the SEG4 value by pressing the (Low Fan) button repeatedly until the value you want to set appears on the remote control display. SEG4 b Set the SEG5 value by pressing the (High Fan) button repeate...
Page 28 - Heat
28 Installation Procedure Installation Pr ocedur e English Steps Remote control display b Set the SEG10 value by pressing the (High Fan) button repeatedly until the value you want to set appears on the remote control display. When you press the (Low Fan) or (High Fan) button, values appear in the fo...
Page 31 - Common steps for setting the
31 Installation Pr ocedur e English Setting the indoor unit addresses Option No. for an indoor unit address: 0AXXXX-1XXXXX-2XXXXX-3XXXXX Before installing an indoor unit, be sure to set an address for the indoor unit by taking the following steps: 1 Make sure that the power is supplied to the indoor...
Page 32 - Setting the installation options in a batch; Common steps for setting the addresses and
32 Installation Procedure Installation Pr ocedur e English CAUTION ŷ The main address must be set to a value in the range 0 to 15. If you set other values, communication error will occur. ŷ If any of SEG5 and SEG6 is set to a value in the range A to F, the main address of the indoor unit does not ch...
Page 33 - Standard
33 Installation Pr ocedur e English Option SEG13 SEG14 SEG15 SEG16 SEG17 SEG18 Function Page Use of external control Setting the output of external control S-Plasma ion Buzzer control Maximum filter usage time Indication and details Indication Details Indication Details Indication Details Indication...
Page 34 - Example: When installing DPM (1 Outdoor unit with 4 indoor units); Changing the addresses and options individually; Common
34 Installation Procedure Installation Pr ocedur e English ŷ Even if you set the Use of drain pump (SEG8) option to 0, it is automatically set to 2 (the drain pump is used with 3 minute delay). Example: When installing DPM (1 Outdoor unit with 4 indoor units) Condition SEG14 Setting Result External ...
Page 35 - Emergency Temperature Output (ETO) function; Setting up the ETO; Main indoor unit
35 Installation Pr ocedur e English Installation Pr ocedur e Emergency Temperature Output (ETO) function CAUTION ŷ In order to deploy the ETO function, the MIM-B14, an external contact interface module, must be installed in each indoor unit. – The ETO is a concept of emergency operation of indoor un...
Page 36 - ETO operation specifications
36 Installation Procedure English Installation Pr ocedur e ETO operation specifications 1 Main indoor unit – Based on the external contact control settings, the main indoor unit decides whether to generate output when an error (indoor unit stop) occurs. – Based on the ETO settings, the main indoor u...
Page 37 - Appendix; Troubleshooting
37 English Appendix Troubleshooting Condition Indoor unit display indications Ice blue Yellow green Blue Red Power reset (blinking once every 2 seconds) X X X In the defrost operation (blinking once every 10 seconds) X X X Open or short circuit error of the indoor-temperature sensor X X X Error of t...
