Connection Between The Flexible Water Pipes Kit (Atw-Fwp-01) And The Heating Coil Pipes - Hitachi YUTAKI S80 Series Installation And Operation Manual

INSTALLATION
C A U T I O N
• It is recommended to place the tank at indoor unit's right
side in order to keep a certain space at the indoor unit's
left side (looking from the front) for easy servicing. Refer
to the Service space section for more information.
• Bear in mind that the tank is very heavy; therefore use at least
two people when lifting it.
• Take care with the connected flexible water pipes and with the
tank cutting parts.
7.5.9 Connection between the flexible water
pipes kit (ATW-FWP-01) and the heating
coil pipes
1 Connect the flexible water pipes of the kit (connected to the
heating coil inlet and outlet of the tank) with the heating coil
pipes (connected to the 3-way valve and T-branch in the in-
door unit).
1.1)
1.2)
N O T E
For more distance between the indoor unit and the DHW tank, it is
necessary to provide extra flexible water pipes (field supplied). In
this case, take into account the maximum electrical wiring length.
If electrical wiring length needs to be increased consult your HI-
TACHI dealer.
43 PMML0291A rev.2 - 09/2014
These are examples of the piping connection position depending
on the tank's position and the selected outlet hole for the flexible
water piping.
Tank at the right side of the indoor unit
Back outlet
Tank at the left side of the indoor unit
Back outlet
I M P O R TA N T N O T E
It is recommended to install two shut-off valves with a drain valve
between the flexible water pipes of the kit and the heating coil
pipes, in order to make easier the service works and draining
procedure.
Upper outlet
Upper outlet