Page 2 - English; gl; Safety Precautions; DANGER
■ English 1 En gl is h Safety Precautions • Read these Safety Precautions carefully to ensure correct installation.• This manual classifies the precautions into DANGER, WARNING and CAUTION. Be sure to follow all the precautions below: they are all important for ensuring safety. DANGER ..........Indi...
Page 3 - • Before choosing the installation site, obtain user approval.; WARNING; • Be sure to install a ground fault circuit interrupter breaker.; CAUTION; • Do not touch the heat exchanger fins.; • Be very careful about product transportation.
2 ■ English Safety Precautions Accessories – , Choosing an Installation Site • Before choosing the installation site, obtain user approval. 1. Indoor unit • The indoor unit should be sited in a place where: 1) the restrictions on installation specified in the indoor unit installation drawings are me...
Page 4 - Preparation before Installation; Removing and installing front panel; Removing and installing front grille; • Removal method; When there is no work space because the unit is close to ceiling; • Installation method; How to set the different addresses
■ English 3 En gl is h Preparation before Installation 1. Removing and installing front panel • Removal method Hook fingers on the tabs on the left and right of the main body, and open until the panel stops. Slide the front panel sideways to disengage the rotating shaft. Then pull the front panel to...
Page 5 - Indoor Unit Installation Drawings
4 ■ English Indoor Unit Installation Drawings 3/16” × 5/8” (M4 × 16mm) Service lid Opening service lid Service lid is opening/closing type. Opening method 1) Remove the service lid screws.2) Pull out the service lid diagonally down in the direction of the arrow. 3) Pull down. Wrap the insulation pip...
Page 6 - Indoor Unit Installation; Installing the mounting plate; Recommended mounting plate retention spots and dimensions
■ English 5 En gl is h Indoor Unit Installation 1. Installing the mounting plate • The mounting plate should be installed on a wall which can support the weight of the indoor unit. 1) Temporarily secure the mounting plate to the wall, make sure that the plate is completely level, and mark the boring...
Page 7 - Boring a wall hole and installing wall embedded pipe; Installing indoor unit
6 ■ English Indoor Unit Installation 2. Boring a wall hole and installing wall embedded pipe • For walls containing metal frame or metal board, be sure to use a wall embedded pipe and wall cover in the feed-through hole to prevent possible heat, electrical shock, or fire. • Be sure to caulk the gaps...
Page 8 - How to replace the drain plug and drain hose
■ English 7 En gl is h 3-2. Left-side, left-back, or left-bottom piping 1) Attach the drain hose to the underside of the refrigerant pipes with adhesive vinyl tape. 2) Be sure to connect the drain hose to the drain port in place of a drain plug. 3) Shape the refrigerant pipes along the pipe path mar...
Page 9 - Wiring; When connecting to a wired remote controller; -3. Remove the cover from the indoor unit electrical
8 ■ English Indoor Unit Installation 4. Wiring 1) As shown in the illustration, insert the wires including the ground wire into the conduit and secure them with lock nut onto the conduit mounting plate. 2) Strip wire ends (9/16 inch (15mm)).3) Match wire colors with terminal numbers on indoor and ou...
Page 10 - Cut-outs for the connection cords
■ English 9 En gl is h 5-5. Prepare the accessory (separate product) [Figure 2]. 1) Remove the cover from the accessory (separate product).2) Insert the connection cord into connector “S21” (white) in the accessory (separate product).3) Route each of the connection cords through the cut-outs in the ...
Page 11 - Drain piping; Refrigerant Piping Work; Flaring the pipe end
10 ■ English Indoor Unit Installation 6. Drain piping 1) Connect the drain hose, as described right. 2) Remove the air filters and pour some water into the drain pan to check the water flows smoothly. 3) If drain hose extension or embedded drain piping is required, use appropriate parts that match t...
Page 12 - Refrigerant piping; -2. Selection of copper and heat insulation materials
■ English 11 En gl is h 2. Refrigerant piping CAUTION • Use the flare nut fixed to the main unit. (To prevent cracking of the flare nut by aged deterioration.)• To prevent gas leakage, apply refrigeration oil only to the inner surface of the flare. (Use refrigeration oil for R410A.)• Use torque wren...
Page 13 - Trial Operation and Testing; Trial operation and testing; such as fin movement, are working properly.; Test items; Trial operation from remote controller
12 ■ English Trial Operation and Testing 1. 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. For Heat pump • In cooling mode, select the lowest programmable te...