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 B22B4 B8 B12 B16 B20 B24 B26
B1 B5 B9 B13 B17 B21B3 B7 B11 B15 B19 B23 B25
B14 : 2way2 (L2)
B13 : 2way2 (L1)
B12 : Live(L)
B9 : 2way1 (L1)
B10 : 2way1 (L2)
B11 : Neutral(N)
L2L1N L2L1N
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
Normally Close Type
Normally Open Type
Not energized
Not energized
Heating/
cooling zone
Heating/
cooling zone
Heating/
cooling zone
Heating/
cooling zone
Supply SupplySupply 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.
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