Technical data

Water flow-rate (l/sec)
Kvs 3-way valve DN 1-1/4"
0,1
1
10
100
1 10 100
Pressure drop (KPa)
16
i-KI(R)_MTD_0011_0061_201307_EN HFC 410A
i-KI(R) MTD
1”¼ 3-WAY VALVE FOR DOMESTIC HOT WATER
PRODUCTION:
The 3-way valve deviates the flow of water to the domestic hot
water storage tank when the temperature read by probe BT8
falls below the set point.
The servomotor is also fitted with an auxiliary contact.
Contact closed when the valve is open and contact open when
the valve is closed. The 3-way selector valve for domestic hot
water production must have the following characteristics for cor-
rect heat pump operation:
- Voltage 230V AC, 50/60 Hz
- If valve rotation takes more than 10 s, the time can be set by
parameter.
- Delta P 500 kPa
- Fluid temperature 0°C to 90°C
- Pressure drop below 20 kPa.
In the total height of the valve (body + servo control) also take
into account 40 mm for the extension supplied with the kit,
required for correct insulation of the pipes.
L
S
BH
Dimensions - Valve body
Fittings inch 1”1/4 G
L mm 102,6
B mm 76,8
H mm 51,3
S mm 39,8
LP
H
L1
Dimensions - Servo control
Graph of valve pressure drop
L mm 131
L1 mm 156
H mm 75
P mm 70
Technical specifications - Valve body
Operating pressure
PN16 for water at 90°C.
PN20 for chilled water
Leaks None
Fluid temperature Water 0°C to 90°C
Angle of rotation 90°
Thread Gas UNI ISO 228
Valve body and fitting Brass OT58, UNI575/65
Stem Brass
Gasket PTFE seat, EPDM O-ring
Ball Chrome-plated brass
Weight 1,28 Kg
Technical specifications - Servomotor
Power supply 230VAC, +10% - 15%
Frequency 50Hz
Power consumption 4 VA
Travel time (open/close) 10s
Free auxiliary contact
(end travel)
230V - 1A (resistive)
Allowable operating
temperature
0 ... + 50 °C
Allowable transport and
storage temperature
- 10 ... + 80 °C
Allowable humidity Class G, DIN 40040
Index of protection IP 54
Connection cable 6 x1 mm
2
, 0.8 m long
Manual control manual open/close control
Weight 0,45 Kg