Indoor Unit - Hitachi YUTAKI S80 Serie Manuel D'instructions

INSTALLATION
7 Run the cables together with the flexible pipes. Fix them with
plastic bands.
• Connect the extension cables to the correct terminal, as
shown in the picture. For more information refer to wiring
diagram.
Unit controller connection cable
OK
Electric heater connection cable
Thermistor connection cable
19 PMML0344B rev.2 - 01/2021
8 Levelling procedure

Indoor unit

Follow the same procedure explained in
unit alone (Without tank)
Installation and operation manual.
Domestic hot water tank
If it is necessary, adjust the height of the mounting foot as follows:
?
• All the procedure must be done before filling the water tank.
• Adjust only the necessary mounting foot of the DHW tank with the
foot locknuts and when the tank is in the final position (moving the
DHWT after levelling can make it uneven again).
• Start with all four feet screwed in as far as possible (factory supplied
position).
• Use two or more people for levelling procedure.
Follow the process:
Extension wires
1 Loosen the locknut of the mounting feet which needs to be
extended (using a wrench).
2 Turn the mounting foot to extend the height (use the
hexagon or slot designed for this purpose in the shaft end).
3 When the mounting foot is in his end position, lock the
locknut. It may be necessary holding the foot to keep it from
turning while tightening the locknut. Use for this purpose the
hexagon or slot in the shaft end.
If it is needed to proceed with the levelling procedure with
a second foot (process 1 to 3), never work over one foot
at same time. When finish, all 4 locknut must be tightened
firmly.
Hexagon and slot
for help in the
foot adjustment
process
Threaded shaft
Weld nut
Locknut
3(A)
4(B)
30(N)
}
Adjust the
31(L)
foot's height
as needed
(2 options)
5
6
on the
YUTAKI S80 indoor unit
N O T E
Washer
Foot
7 mm
Hold the foot
shaft to keep
it from turning
(2 options)
10 mm
Extend
Take in
Installation of indoor
Loosen locknut
17 mm
Lock the foot
turning the
locknut