User Manual

ManualsBrandsSiemens ManualsTEVA (BC4)Zone valve on/off VVI46../2, VXI46../2

2-port zone valves

3-port zone valves

ACVATIX™

2-port and 3-port zone

valves, PN16

VVI46../2

VXI46../2

ith on/off characteristics

• Hot-pressed brass valve body

• DN 15, DN 20 and DN 25

• k

2…5 m

• Internally threaded connections Rp to ISO 7-1

• Combined with electromotoric actuators, type SUA.., SSA31.04, SFA.. and

electrothermal actuators STA..

Use

• For use in ventilation and air-conditioning systems for water-side terminal unit

control in closed circuits, e.g. for induction units, fan-coil units, small reheaters

and small re-coolers.

- 2-pipe systems with 1 heat exchanger for heating and cooling

- 4-pipe systems with 2 separate heat exchangers for heating and cooling

• In closed-circuit zone heating systems, for example:

- Separate floors in a building

- Apartments

- Individual rooms

A6V10421629_en--_e

2018-04-17

Building Technologies

Summary of content (8 pages)

PAGE 1
s 2-port zone valves 3-port zone valves ACVATIX™ 2-port and 3-port zone valves, PN16 VVI46../2 VXI46../2 With on/off characteristics • • • • • Hot-pressed brass valve body DN 15, DN 20 and DN 25 kvs 2…5 m3/h Internally threaded connections Rp to ISO 7-1 Combined with electromotoric actuators, type SUA.., SSA31.04, SFA.. and electrothermal actuators STA.. Use • For use in ventilation and air-conditioning systems for water-side terminal unit control in closed circuits, e.g.
PAGE 2
Type summary Type DN Stock number Connections PN class kvs A→AB 3 [m /h] VVI46.15/2 1) S55249-V106 15 2.15 16 25 Internally threaded Rp DN Connections PN class VVI46.20/2 S55249-V107 20 VVI46.25/2 S55249-V108 Type Stock number VXI46.15/2 S55249-V109 15 VXI46.20/2 S55249-V110 20 VXI46.25/2 S55249-V111 25 VXI46.25T/2 S55249-V112 25 3.5 5.0 Internally threaded Rp 16 kvs 1) kvs 1) ABA ABB [m /h] 3 [m /h] 2.15 1.5 3.5 2.5 5.0 3.5 5.5 4.
PAGE 3
∆ps = Maximum permissible differential pressure at which the motorized valve will close securely against the pressure (close off pressure) Actuator overview Actuator Positioning Operating voltage time Data sheet SUA21/3 AC 230 V 3-wire on/off 1) (SPST ) 10 s 170 N A6V10446174 SSA31.04 AC 230 V 3-position or SPDT 43 s 160 N N4860 SFA21/18 AC 230 V SFA71/18 AC 24 V 2-position 10 s 200 N N4863 STA23.. AC 230 V 2-position 210 s 100 N N4884 STA73..
PAGE 4
∆p v100 = Differential pressure across the fully open valve and the valve's control pat h A → AB (2-port valves), AB → A (3-port diverting valves) by a volume flow 100 ∆p max 100 = Volume flow through the fully open valve (H 100) = Maximum permissible differential pressure across the valve's control path, valid for the entire actuating range of the motorized valve 100 kPa = 1 bar ≈ 10 mWC 3 1 m /h = 0.278 l/s water at 20 °C Engineering notes Refer to Mounting notes and Commissioning notes.
PAGE 5
AL50 supporting ring The AL50 supporting ring must be put into position before mounting the actuator SFA.. and SUA.. onto the valve. SIEMENS A 6V10421629Z01 kvs5.0 XYYMMA Commissioning notes Manual adjustment In the straight-through control path A → AB, respectively AB → A the valve is opened by a return spring. The straight-through path can be closed manually with the manual adjustment button. With 3-port valves, this method can be used to open bypass B to 70%. (exception: VXI46.
PAGE 6
Technical data Functional data PN class PN 16 to EN 12266-1 Permissible operating pressure 1600 kPa (16 bar) Valve characteristic The valves are for ON/OFF control, but also can be operated by modulating DC 0…10 V and 3-position actuators. Leakage rate 2-port valve: Path A → AB 3-port valve: Path AB → A Bypass AB → B Bypass A → B VXI46.25T/2 Standards To DIN EN 1349 0…0.05% 0…0.05% Max. 2…5% 0…0.
PAGE 7
Dimensions 2-port valves 3-port valves VVI46../2 VXI46../2 Valve type A AB B Rp [inch] H [mm] H1 [mm] H2 [mm] L1 [mm] L2 [mm] [kg] kg VVI46.15/2 15 Rp ½ 31 45.2 48 60 30 0.27 VVI46.20/2 20 Rp ¾ 31 45.2 48 65 32.5 0.30 VVI46.25/2 25 Rp 1 31 45.2 48 84 45 0.54 Valve type DN Rp AB A DN H H1 [inch] [mm] [mm] H2 L1 [mm] [mm] L2 L3 kg [mm] [mm] [kg] VXI46.15/2 15 Rp ½ 31 45.2 48 60 30 30 0.33 VXI46.20/2 20 Rp ¾ 31 45.2 48 65 32.5 32.
PAGE 8
Published by: Siemens Switzerland Ltd. Building Technologies Division International Headquarters Theilerstrasse 1a CH-6300 Zug Switzerland Tel. +41 58-724 24 24 www.siemens.