18
Heat Mode and DHW Mode
14
16
15
17
18
19
5
6
9 10
11
----
12
8
13
4
1
2
3
7
13 13
6
Outdoors
Equipment room
Indoors
ODU
Hydro module
Water flow switch
Wired controller (Accessory)
Y-shaped filter (Accessory)
Check valve (Field supply)
Safety valve (Accessory)
Water pump (Field supply. For model selection,
see page 22.)
Drain valve (Field supply)
Water replenishing valve (Field supply)
Water collector (Field supply)
Water expansion tank (Field supply. For model
selection, see page 22.)
Terminals. The unit can connect to the floor heating
device FHL (25 °C-45 °C), fan coil FCU (45 °C-60 °C),
and radiator (60 °C-80 °C), which have different
temperature requirements.
Discharge valve (Field supply)
Water tank (Field supply)
Temperature sensor of the water tank (Accessory)
Tap (Field supply)
Water tank and water pump (Field supply)
One-way valve (Field supply)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
Terminals on the water system side can connect the fan coil (floor heating device/radiator) for heating or DHW. Water
heating requires the temperature sensor of the water tank provided among accessories to detect water tank
temperature. The hydro module controls the three-way valve to switch to HEAT DHW modes.
STATEMENT
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