Page 2 - CONTENTS; WIRING EXAMPLE AND HOW TO SET; SAFETY CONSIDERATIONS; Read these
VRV SYSTEM Inverter Air Conditioners Installation manual English 1 CONTENTS 1. SAFETY CONSIDERATIONS .......................................... 1 2. BEFORE INSTALLATION ................................................ 3 3. SELECTING INSTALLATION SITE.................................. 4 4. PREPARATIO...
Page 3 - English
2 English • Before touching electrical parts, turn off the unit. • Be sure to install a ground fault circuit interrupter if one is not already available. This helps prevent electrical shocks or fire. • Securely fasten the outside unit terminal cover (panel). If the terminal cover/panel is not instal...
Page 4 - BEFORE INSTALLATION; • When moving the unit while removing it from the carton; PRECAUTIONS; Thin
English 3 2. BEFORE INSTALLATION • When moving the unit while removing it from the carton box, be sure to lift it by holding on to the four lifting lugs without exerting any pressure on other parts, especially, the refrigerant piping, drain piping, flanges and other resin parts. • Be sure to check t...
Page 5 - SELECTING INSTALLATION SITE
4 English 2-3 OPTIONAL ACCESSORIES • These is one type of remote controller: wired. NOTE • If you wish to use a remote controller that is different from the above, select a suitable remote controller after consulting catalogs and technical materials. FOR THE FOLLOWING ITEMS, TAKE SPECIAL CARE DURING...
Page 6 - CAUTION; PREPARATIONS BEFORE INSTALLATION
English 5 CAUTION • Install the indoor and outdoor units, power supply wiring and connecting wires at least 3.3 ft away from televisions or radios in order to prevent image interference or noise.(Depending on the radio waves, a distance of 3.3 ft may not be sufficient enough to eliminate the noise.)...
Page 7 - INDOOR UNIT INSTALLATION
6 English (2) Mount the canvas ducts to the air outlet and inlet so that the vibration of the air conditioner will not be transmitted to the duct or ceiling. Apply a sound-absorbing material (insula-tion material) to the inner wall of the duct and vibration insu-lation rubber to the hanging bolts (r...
Page 8 - REFRIGERANT PIPING WORK; Torque wrench
English 7 CAUTION • Use the level and check that the unit is installed horizontally. (4-directions) • In the case of using a vinyl tube in place of the level, put the both edges of the vinyl tube in close contact with the bottom of the product to make levelness adjustment.If the unit is installed at...
Page 9 - DRAIN PIPING WORK; Heat insulation procedure for gas piping
8 English Table 2 (2) On completion of installation work, check that there is no gas leakage . (3) Refer to the illustration on the right-hand side and be sure to perform heat insulation work on the piping joints after gas leakage checks. (Refer to Fig. 6) • Use the insulation for fitting (4) and (5...
Page 10 - a downward slope of at least
English 9 CAUTION • The drain piping will be clogged with water and water leakage may result if the water is accumulated in the drain piping. • Conduct drain-up piping work if the gradient is insuffi- cient. • Attach a support bracket at 3.3 to 4.9 ft intervals for the prevention of piping deflectio...
Page 11 - DUCT WORK; Plastic water container
10 English The drainage can be checked with the water level change in the drain pan through the water inlet. CAUTION • Do not touch the drain pump. Otherwise, an electric shock may be received. • Do not impose external force on the float switch. Otherwise, a failure may result. 5. On completion of t...
Page 12 - ELECTRIC WIRING WORK; GENERAL INSTRUCTIONS; NOTE
English 11 9. ELECTRIC WIRING WORK 9-1 GENERAL INSTRUCTIONS • All field supplied parts and materials and electric works must conform to local codes. • Use copper wire only.• For electric wiring work, refer to also “Wiring diagram” attached to the control box lid. • For remote controller wiring detai...
Page 13 - Low-voltage wiring inlet; PROHIBITED; Power supply wiring
12 English (2) Lay the wires in the control box through the wire inlet on the side of the control box. CAUTION • Do not lay the remote controller wiring or transmission wiring along with the power supply wiring or other electric wiring in the same route. Separate the remote controller wiring and tra...
Page 14 - Wire through holes
English 13 (4) Put the control box lid, and wrap the wire sealing material (Small) (10) around the conduit so as to block the wire through holes. CAUTION • After all the wiring connections are done, fill in any gaps in the through holes with putty or insulation (procured locally) to pre-vent small a...
Page 15 - Input A
14 English No. 3 system: When including BS unit [ PRECAUTIONS ] 1. Make sure that the ground fault circuit interrupter is designed to protect the air conditioner from ground faults, overloads, and short-circuiting. 2. The remote controller wiring (P1 and P2) and transmission wiring (F1 and F2) have ...