11.3 Outdoor Unit
11.3.1Install the Outdoor Unit
•After selecting the best location, start installation to Indoor/Outdoor Unit Installation Diagram. 1 Fix the unit on concrete or rigid frame firmly and horizontally by bolt nut (ø10mm).
2 When installing at roof, please consider strong wind and earthquake. Please fasten the installation stand firmly with bolt or nails.
A B
C
Model | A | B | C | D |
C18***, C24*** | 612.5 mm | 131 mm | 19 mm | 383 mm |
D
11.3.2Connecting the Piping
11.3.2.1Connecting the piping to indoor
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.
11.3.2.2Connecting the piping to outdoor
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.
Spanner or Wrench
Torque wrench
CAUTION
Do not overtighten, overtightening may cause gas leakage.
Piping size |
| Torque |
(6.35 mm) 1/4” | [18 | N•m (1.8 kgf.m)] |
(9.52 mm) 3/8” | [42 | N•m (4.3 kgf.m)] |
(12.7 mm) 1/2” | [55 | N•m (5.6 kgf.m)] |
(15.88 mm) 5/8” | [65 | N•m (6.6 kgf.m)] |
(19.05 mm) 3/4” | [100 | N•m (10.2 kgf.m)] |
25