2 . P ower su p p l y c a b les and t h e c a b les b etween I nterfa c e unit / F low tem p . c ontroller and outdoor unit s h all not b e lig h ter t h an p ol y c h loro p rene

3. B e sure to c onnec t th e c ab les b etween I nterfac e unit/ F low temp . c ontroller and outdoor unit direc tly to th e units ( no intermediate c onnec tions

are allowed) .

insulation to ground or a p oor elec tric al c ontac t .

( I f an intermediate c onnec tion is nec essary , b e sure to take measures to p rev ent water from entering th e c ab les.)

4 . I nstall an earth longer th an oth er c ab les.

5 . D o not c onstruc t a sy stem with a p ower sup p ly th at is turned O N and O F F freq uently .

W arning:

I n c ase of A - c ontrol wiring, th ere is h igh v oltage p otential on th e S 3 terminal c aused b y elec tric al c irc uit design th at h as no elec tric al insulation

b etween p ower line and c ommunic ation signal line. T h erefore, p lease turn off th e main p ower sup p ly wh en serv ic ing. A nd do not touc h th e S 1 , S 2 , S 3

terminals wh en th e p ower is energiz e d. I f isolator sh ould b e used b etween indoor unit and outdoor unit, p lease use 3- p ole ty p e.

OCH526C

S P E C I F I C A T I O N S

( p ower wiring sp ec ific ations)

)