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

4.4.3 Individual 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
• C1 buffer tank depicted in the picture is C1 circuit for YUTAKI CASCADE CONTROLLER.
• C1 buffer tank is managed by means YUTAKI CASCADE CONTROLLER unit without thermostat.
• Each C2 circuit of each YUTAKI Sub unit is assigned to a specific household.
• Each C2 mixing kit of each YUTAKI Sub unit guarantees C2 water temperature at each
household.
• Each C2 circuit can have a wired or Wireless thermostat which is connected to each Sub unit.
• Each C2 circuit can have an Outdoor OTC Temperature by Outdoor unit or Wired Sensor
accessory.
YUTAKI
1
YUTAKI
2
YUTAKI
n
Example for illustrative purpose
PMEN0581 rev.2 - 04/2023
YCC YCC
DHW ATW-YCC-03
E.HEATER
3WV DHW
TDHW
H-LINK
Vmix
Vmix
TWO3
C1
BUFFER TANK
BUFFER TANK
Vmix
CIRCUIT 2 - YUTAKI 1
SPACE HEATING/COOLING
TWO2
WP2
WP2 TWO2
CIRCUIT 2 - YUTAKI 2
SPACE HEATING/COOLING
CIRCUIT 2 - YUTAKI n
SPACE HEATING/COOLING
TWO2
WP2
PC-ARFH2E wired
to YUTAKI 1
PC-ARFH2E wired
to YUTAKI 2
PC-ARFH2E wired
to YUTAKI n
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