Hitachi YUTAKI ATW-YCC-03 Installation And Operation Manual page 11

INSTALLATION
7.2 INTRODUCTION
The YUTAKI CASCADE CONTROLLER is designed as an
extension of the hydraulic control of YUTAKI range to establish
a larger and efficient heating or cooling system.
When YUTAKI CASCADE CONTROLLER function is active,
system separate water generation (hot or cold) from water
distribution and consumption.
?
N O T E
Water generation and water distribution and consumption are generic
names, specific input and output distribution is explained below.
Water generation is performed on YUTAKI Sub units, and
water distribution and consumption is done on Main YUTAKI
CASCADE CONTROLLER unit.
Example for illustrative purpose
YUTAKI
1
YUTAKI
2
YUTAKI
3
YUTAKI
4
YUTAKI
5
YUTAKI
n
UP to 8
UP to 8
5 PMML0581 rev.1 - 02/2023 - 1000011627
ATW-YCC-03
H-LINK
HYDRAULIC
SEPARATOR
YUTAKI CASCADE CONTROLLER
• is a central control device capable to control Sub units that
produce hot or cool water.
• is capable to control up to 8 YUTAKI indoor units.
• allows to control the following heating indoor unit models:
- YUTAKI S (from 4 to 10 HP)
- YUTAKI S COMBI (from 4 to 6 HP)
- YUTAKI M (from 4 to 7HP)
- YUTAKI Hydrosplit + YUTAKI H (from 4 to7HP)
- YUTAKI Hydrosplit + YUTAKI H Combi (from 4-7 HP)
RECEIVER
ATW- RTU-07/08
DWH
CIRCUIT 2
SPACE HEATING/COOLING
PC-ARFH2E
Or
Or
ATW- RTU-07/08