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7. Electrical installation
Installer reference guide / Mono tank integrated type
115
To connect 2WAY VALVES (B9/B10/B11/B12/B13/B14)
• The UFH loops will be closed when the supply temperature (TW2) is reaching temperatures below 16 °C during cooling
operation. This control logic is to prevent condensation of moisture on the floor.
1
Make sure to wire the valves for the installation to the correct terminals, as two types are supported
(Normally Open - NO or Normally Closed type - NC).
2
Make sure what type is installed (NO or NC type).
B2
B6
B10
B14
B18
B22
B4
B8
B12
B16
B20
B24 B26
B1
B5
B9
B13
B17
B21
B3
B7
B11
B15
B19
B23 B25
B14 : 2way2 (L2)
B13 : 2way2 (L1)
B12 : Live(L)
B9 : 2way1 (L1)
B10 : 2way1 (L2)
B11 : Neutral(N)
L2
L1
N
L2
L1
N
※
Connection of 2 wires 2WAY VALVE
Normally
Closed type
Normally
Open type
N
L2
N L1 L2
N L1 L2
N L1 L2
N L1 L2
N L1
N
L2
N L1 L2
N L1 L2
N L1 L2
N L1 L2
N L1
Normally Close Type
Normally Open Type
Not energized
Not energized
Heating/
cooling zone
Heating/
cooling zone
Heating/
cooling zone
Heating/
cooling zone
Supply
Supply
Supply
Supply
2WAY VALVE
2WAY VALVE
Energized
Energized
Description
No. of wires
Min./Max. current
Thickness
Remark
Motorized 2WAY VALVE
control flow to the heating/
cooling zones
2+ground
10mA /50mA
>0.75mm2, H05RN-F or
HO7RH-F
Field supply
(220-240V~, Output)
CAUTION
• There are 2 types of 2WAY VALVE, Normally Open (NO) and Normally Closed (NC) type. Make sure to
connect the wires to the correct terminals of the terminal block. As per above mentioned wiring diagram
and illustrations.