75
ACCESSORIES INSTALLATION
ENGLISH
2
nd
Circuit
The 2
nd
circuit is a function that can separately control the circuit1 requiring high temperature and
the circuit 2 requiring medium temperature, you need to prepare a separate Mix Kit.
The mix kit must be installed in the circuit 2.
※ Heating circuits that are not designed for carrying cooling water must be blocked by the
2-way-valve.
[Install Guide Mixing circuit Cooling]
[Install Guide Mixing circuit Heating]
Circuit 2
Circuit 1
Floor (35°C)
Convector
(FCU, 45 °C)
Radiator (45 °C) Radiator (55 °C)
Floor (35 °C)
x x x x
Convector (FCU, 45 °C)
○ x x x
Radiator (45 °C)
○ ○ x x
Radiator (55 °C)
○ ○ ○ x
Circuit 2
Circuit 1
Floor (18 °C)
Convector
(FCU, 5 °C)
Floor (18 °C)
x x
Convector (FCU, 5 °C)
○ x
NOTE
Circuit 1 = Direct circuit : Zone where the water temperature is highest when heating
Circuit 2 = Mixing circuit : The other zone
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