Common Heating/Cooling Household In Combination With Individual; Dhw Production (Ii) - Hitachi YUTAKI ATW-YCC-03 Installation And Operation Manual

4.4.6 Common Heating/Cooling household in combination with Individual

DHW production (II)

This installation is suitable in case that not such a high amount of DHW is demanded, or more than
one Sub unit is needed to heat one single tank.
DHW production or Space Heating/Cooling production is simultaneously. This means that YUTAKI
CASCADE CONTROLLER can operate for Space Heating/Cooling application and each configured
Sub can operate for DHW when needed. Each Circuit 2 will continue working by using Mixing kit
and accumulated water into C1 Buffer tank.
In this scenario, YUTAKI CASCADE CONTROLLER manage Space Heating/Cooling household and
YUTAKI DHW Production:
• C1 and C2 management is performed by means of YUTAKI CASCADE CONTROLLER.
• C1 and C2 can have wired/wireless/none thermostats or any combination option.
• Installer shall determine proper usage of collector systems.
YUTAKI
1
YUTAKI
2
YUTAKI
n
UP to 8
Example for illustrative purpose
PMEN0581 rev.2 - 04/2023
DHW
E.HEATER
DHW
3WV
TDHW
H-LINK
TWO3
C1
BUFFER TANK
YCC YCC
RECEIVER
ATW-YCC-03
ATW- RTU-07/08
CIRCUIT 1
SPACE HEATING/COOLING
CIRCUIT 2
SPACE HEATING/COOLING
4
PC-ARFH2E
Or
ATW- RTU-07/08
PC-ARFH2E
Or
ATW- RTU-06/09
34