Hitachi YUTAKI S80 Series Installation And Operation Manual page 39

INSTALLATION
4 Introduce from outside of the unit the kit pipe for heating coil
inlet (1600 mm tube length) (3/4") through the preferable out-
let cover hole and connect the elbow end to the 3-way valve
connection for heating coil inlet.
4.1)
4.2)
(Left side view)
39 PMML0291A rev.2 - 09/2014
3-way valve connection
for heating coil inlet
5 Introduce from outside of the unit the kit pipe for heating coil
outlet (1400 mm tube length) (3/4") through the preferable
outlet cover hole connect the elbow end to the T-branch con-
nection for heating coil outlet passing it over the suction com-
pressor and air purger's pipes.
5.1)
5.2)
Suction compressor pipe Air purger's pipe