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10.2.4 Connect the Cable to the Indoor Unit
1 The inside and outside connecting cable can be connected without removing the front grille.
2 Connecting cable between indoor unit and outdoor unit shall be approved polychloroprene sheathed 4x
1.5mm
2
flexible cords, type designation 245 IEC 57 or heavier cord.
Ensure the color of wires of outdoor unit and the terminal numbers are the same to the indoor’s
respectively.
Earth lead wire shall be longer than the other lead wires as shown in the figure for the electrical safety
in case of the slipping out of the cord from the anchorage.
Secure the cable onto the board with the holder (clamper).
3 Wire stripping and connecting requirement.
10.3 Outdoor Unit
10.3.1 Install the Outdoor Unit
• After selecting the best location, start installation according to indoor/outdoor unit installation diagram.
1 Fix the unit on concrete or rigid frame firmly and horizontally by bolt nut (ø10 mm).
2 When installing at roof, please consider strong wind and earthquake.
Please fasten the installation stand firmly with bolt or nails.
10.3.2 Connecting the Piping
10.3.2.1 Connecting the piping to indoor unit
Please make flare after inserting flare nut (locate at joint portion, of tube assembly) onto the copper pipe. (In case of
using long piping)
Connect the piping
• Align the center of piping and sufficiently tighten the flare nut with fingers.
• Further tighten the flare nut with torque wrench in specified torque as stated in the table.
Connecting the piping to outdoor unit
Decide piping length and then cut by using pipe cutter. Remove burrs from cut edge. Make flare after inserting the
flare nut (locate at valve) onto the copper pipe. Align center of piping to valves and then tighten with torque wrench to
the specified torque as stated in the table.
A B C D
570 103.9 13.5 320
Caution : Do not over tighten, over
tightening cause gas leakage
Piping size Torque
6.35mm (1/4”) 18 N• m (1.8kgf•m)
9.52mm (3/8") 42 N• m (4.2kgf•m)
12.70mm (1/2") 55 N• m (5.5kgf•m)
B
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