Hitachi YUTAKI Serie Installations- Und Betriebshandbuch Seite 101

REFRIGERANT AND WATER PIPING
YUTAKI S80 Domestic hot water tank accessory (DHWS(200/260)S-2.7H2E)
Model
DHWS(200/260)S-2.7H2E
Heating coil pipes (Factory-supplied with the DHW tank accessory (DHWS(200/260)S-2.7H2E))
The domestic hot water tank accessory for combination with YUTAKI S80 indoor unit is factory-supplied with two flexible water
pipes for the connection between the indoor unit and the heating coil of the domestic hot water tank, when the DHW tank is installed
integrated above the indoor unit.
(1")
Flexible water pipe kit (ATW-FWP-02) - For domestic hot water tank installed beside the indoor unit
For DHW tank beside the indoor unit (both right or left side), the heating coil pipes factory-supplied with the DHW tank accessory
are not required. In this case, the dedicated HITACHI flexible water pipe kit (ATW-FWP-02 accessory) is needed. This kit is provided
with the following items:
- 4 flexible water pipes:
Š 2 pipes to connect to the indoor unit (3-way valve and T-branch)
Š 2 pipes to connect to the heating coil inlet/outlet connections of the DHW tank accessory (DHWS(200/260)S-2.7H2E).
- 9 gaskets (2 gaskets for each flexible water pipe end and 1 spare gasket).
3 extension cables (1 for the tank's electric heater, 1 for the tank's thermistor and 1 for the unit controller).
-
Flexible water
pipes
Gaskets
It is necessary to identify the function of each water pipe.
89 PMML0335A rev.1 - 04/2016
Heating coil connection
Inlet connection
G 1" (male)
Heating coil inlet
connection
FRONT SIDE
Item
200 mm
(1")
(x2)
Outlet connection
G 1" (male)
DHW outlet
(Hot water from the tank)
DHW inlet
(Cold water to the tank)
Heating coil outlet
connection
Heating coil pipes
One pipe for the connection between 3-way valve connection and heating
coil inlet connection of the tank.
The other one for the connection between T-branch connection and
heating coil outlet connection of the tank.
DHW connection
Inlet connection Outlet connection
G 3/4" (male) G 3/4" (male)
Connection
Extension
cables
(inches)