Hitachi YUTAKI S Series Technical Catalogue page 109

8 Refrigerant and water piping
Space heating and DHW
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YUTAKI S / YUTAKI M
YUTAKI S and YUTAKI M are not factory-supplied ready for DHW operation, but they can be used for the production of
DHW if the following elements are installed:
• A domestic hot water tank (DHWT-(200/260)S-3.0H2E accessory) (8) has to be installed in combination with the
indoor unit.
• A 3-way valve (ATW-3WV-01 accessory) (9) must be connected at one point of the water outlet pipe of the
installation.
A T-branch (field supplied) (10) must be connected at one point of the water inlet pipe of the installation.
•
• Two water pipes (field supplied) (11). One pipe between 3-way valve and the heating coil inlet (3) of the DHW tank,
the other one between the T-branch and the heating coil outlet (4) of the DHW tank.
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YUTAKI S COMBI
YUTAKI S COMBI is factory-supplied ready for DHW operation (Fitted with DHW tank and 3-way valve). Only the
"Common" elements are required.
101 TCGB0123 rev.2 - 10/2019
Type Nº
1 Water inlet (Space heating)
2 Water outlet (Space heating)
3 Heating coil inlet
Piping
connections
4 Heating coil outlet
5 Water inlet (DHW)
6 Water outlet (DHW)
Shut-off valve (factory-supplied)
Factory
7 (Field-supplied for YUTAKI M
supplied
series)
Domestic hot water tank
8 DHWT-(200/300)S-3.0H2E
accessory
Accessories
3-way valve
9
(ATW-3WV-01 accessory)
10 T-branch
Field supplied
11 Heating coil pipes
Part name
8