Page 3 - English; SAFETY PRECAUTIONS; WARNING
1 English 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 follo...
Page 4 - ACCESSORIES; Caution
English 2 ACCESSORIES CHOOSING A SITE • Before choosing the installation site, obtain user approval. Caution • When moving the unit during or after unpacking, make sure to lift it by holding its lifting lugs. Do not exert any pressure on other parts, especially the refrigerant piping, drain piping...
Page 5 - CHOOSING A SITE; PREPARATIONS BEFORE INSTALLATION
3 English CHOOSING A SITE Select the signal receiver mounting location according to the following conditions: • Install the signal receiver, which has a built-in temperature sensor, near the intake vent where there is convection of air and it can get an accurate reading of the room’s temperature...
Page 8 - OUTDOOR UNIT INSTALLATION; FLARING THE PIPE END; Warning; REFRIGERANT PIPING
English 6 OUTDOOR UNIT INSTALLATION Install as described in the installation manual supplied with the outdoor unit. REFRIGERANT PIPING WORK See the installation manual supplied with the outdoor unit. 1. FLARING THE PIPE END 1) Cut the pipe end with a pipe cutter.2) Remove burrs with the cut surfac...
Page 9 - REFRIGERANT PIPING WORK
7 English REFRIGERANT PIPING WORK 3) After the work is finished, make sure to check that there is no gas leak. 4) After checking for gas leaks, be sure to insulate the pipe connections. • Insulate using the insulation for fitting included with the liquid and gas pipes. Besides, make sure the insul...
Page 10 - DRAIN PIPING WORK
English 8 DRAIN PIPING WORK Caution Make sure all water is out before making the duct connection. Install the drain piping. • Make sure the drain works properly.• The diameter of the drain pipe should be greater than or equal to the diameter of the connecting pipe (vinyl tube; pipe size: 20mm; o...
Page 11 - INSTALLING THE DUCT
9 English INSTALLING THE DUCT Connect the duct supplied in the field. Air inlet side • Attach the duct and intake-side flange (field supply).• Connect the flange to the main unit with accessory screws (in 16, 20 or 24 positions).• Wrap the intake-side flange and duct connection area with aluminum ...
Page 12 - WIRING
English 10 WIRING See the installation manual supplied with the outdoor unit. HOW TO CONNECT WIRINGS. • Wire only after removing the control box lid as shown in the Fig. Caution • When clamping the wiring, use the included clamping material as shown in the Fig. to prevent outside pressure being ...
Page 13 - TRIAL OPERATION AND TESTING
11 English TRIAL OPERATION AND TESTING (1) Measure the supply voltage and make sure that it falls in the specified range.(2) Trial operation should be carried out in either cooling or heating mode. For Heat pump.In cooling mode, select the lowest programmable temperature; in heating mode, select...