Produkt-Datenblatt Electromotoric actuators SFP

Produkt-Datenblatt Electromotoric actuators SFP
4
Elctromotoric Actuators
for small valves VVP47.., VXP47.., VMP47..
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865
SFP21/18
SFP71/18
SFP21/18 AC 230 V operating voltage, 2-position control signal
SFP71/18 AC 24 V operating voltage, 2-position control signal
135 N positioning force
Spring return
Manual adjustment
For direct mounting with union nut (no tools required)
Integral 1.8 m connecting cable
Auxiliary switch, type ASC2.1/18 (optional)
Use
The SFP21/18 and SFP71/18 actuators are used in conjunction with zone valves
VVP47.., VXP47.. and VMP47.., primarily in heating, ventilation, air conditioning and
refrigeration systems for water-based control of low-temperature hot water and cooling
water. The SFP.. actuators together with the 3-port valves VXP47.. are suitable for low
leakage change over applications.
Functions
The electric actuator requires an on/off controller (thermostat) to control the valve. If the
temperature of the medium deviates from the set-point, the controller output signal
causes the actuator to drive the valve open. When the temperature of the medium
reaches the set-point, the control signal is cut off and the valve closes again.
CA1N4865en
20.04.2011
Siemens Building Technologies
HVAC Products
Type summary
Accessories
Prod. no.
Operating voltage
SFP21/18
AC 230 V
SFP71/18
AC 24 V
Prod. no.
Description
ASC2.1/18
Auxiliary switch
open/closed
Positioning time
Control signal
Connecting cable
10 s
2-position
1.8 m
Switching point
Switching capacity
Connecting cable
At approx. 50% stroke
AC 250 V / 3(2) A
1.8 m
Ordering
Example:
Product number
Stock number
Designation
Quantity
SFP71/18
SFP71/18
Electromotoric Actuators
2
ASC2.1/18
ASC2.1/18
Auxiliary Switch
1
Delivery
Actuators, valves and accessories are supplied separately. The actuator is supplied
with the AL50 ring.
Rev. no.
See overview
Equipment combinations
Type code
Valve type
kvs
3
[m /h]
VVP47..
2-port valves
0.25...4.0
VXP47..
3-port valves
0.25...4.0
VMP47..
3-port valves with T-bypass
0.25...2.5
PN class
Data sheet
PN16
4847
Technical design / Mechanical design
The valve is opened electrically by the actuator and closed by spring force.
It incorporates a synchronous motor, a gear mechanism and a return spring.
The electric motor is overload-resistant and anti-locking, so that continuous operation is
possible. The maximum stroke is limited mechanically. The closing motion, by contrast,
includes an overrun for the gear mechanism. This protects the gear mechanism from
mechanical shock and increases service life.
The valve is connected by an 1.8 m cable, which is an integral part of the actuator.
Accessories
ASC2.1/18
auxiliary switch
The optional auxiliary switch can be fitted to the actuator
with two screws.
It switches at a stroke of approx. 50 %.
• Valve actuator de-energized:
→ Auxiliary switch open
• Voltage applied to valve actuator:
→ Auxiliary switch closed (50 ... 100 % stroke)
• Manual adjuster locked into position
(approx. 90 % stroke):
→ Auxiliary switch closed
01468
See "Technical data" for further information on the auxiliary switch, page 5.
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Siemens Building Technologies
HVAC Products
Elctromotoric Actuators
CA1N4865en
20.04.2011
Notes
Engineering
The admissible temperatures (see "Technical data", page 5) must be observed.
Electrical connection
• The actuator may be operated only with alternating current (AC 230 V for SFP21/18
and AC 24V for SFP71/18)
Caution
• Phase cut and pulse-width-modulated signals are not suitable.
• Recommended number of opening/closing operations: approx. 50 per day, with
200 heating or cooling days
Mounting
Orientation
Mounting instructions are enclosed with the packaging. Mount ring AL50 prior to
mounting the actuator onto V..P47.. valves.
85°
85°
Commissioning
• Check the wiring.
• Check the functioning of the actuator and of the auxiliary switch, if fitted.
Operating
The valve can be opened manually by use of a lever on the actuator. When the valve is
approximately 90% open this locks into position. When electrical operation is resumed,
the locking mechanism is released automatically.
Manual adjustment
Opening the valve manually
Locking the lever into position at a
valve opening of approx. 90%
01600
01602
Releasing the lever manually
01601
Rotate lever as far as the mechanical stop, and release.
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Siemens Building Technologies
HVAC Products
Elctromotoric Actuators
CA1N4865en
20.04.2011
Maintenance
• The actuators require no maintenance.
• In the event of a fault, the actuator can be replaced without removing the valve. The
operating voltage must be switched off during this process.
• The actuators cannot be repaired.
Disposal
The device contains electrical and electronic components and must not be disposed of
together with domestic waste. This applies in particular to the PCB.
Legislation may demand special handling of certain components, or it may be sensible
from an ecological point of view.
Current local legislation must be observed.
Warranty
The technical data given for these applications is valid only when the valves are
used with the actuators described under "Equipment combinations", page 2.
The use of type SFP.. actuators with third-party valves invalidates any warranty
offered by Siemens Building Technologies / HVAC Products.
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Siemens Building Technologies
HVAC Products
Elctromotoric Actuators
CA1N4865en
20.04.2011
Technical data
Power supply
Operating voltage
Voltage tolerance
SFP21/18
SFP71/18
AC 230 V
± 15%
AC 24 V
± 20%
Frequency
50 Hz
Max. power consumption
9.8 VA
Fuse protection for incoming cable
Control
Operating data
Max. 3 A (external)
Control signal
On/off via temperature controller
Phase cut and pulse-width-modulated signals
are not suitable.
Opening/closing operations
Recommended number: approx. 10 000 / year
(equivalent to approx. 50 per day)
Position with de-energized actuator
2-port valve (VVP47..)
3-port valve (VXP47.. and VMP47..)
A → AB closed
A → AB closed, B → AB open
Positioning time
Opened by motor: 10 s
Closed by spring: 30…50 s
Nominal stroke
2.5 mm
Positioning force
135 N
Manual adjustment
0...90 %
Admissible temperature of
medium in the connected valve:
Electrical connection
Connecting cable (integral)
Norms and Standards
CE–conformity
to EMC directive
1...110 °C
2-core, 1.8 mm
18 AWG (0.96 mm2)
2004/108/EC
Immunity EN 61000-6-2
Emissions EN 61000-6-3
Low Voltage Directive
2006/95/EC
Electrical safety EN 60730-1
Industrial 3)
Residential
Protection class to
EN 60730, Section 2.7 Class II
to EN 60730, 2
Housing protection
Upright to horizontal
IP30 to EN 60529
Environmental compatibility
Dimensions / Weight
Class III
Pollution degree
Dimensions
Weight
without auxiliary switch
with auxiliary switch
ISO 14001 (Environment)
ISO 9001 (Quality)
SN 36350 (Environmentally compatible products)
RL 2002/95/EG (RoHS)
See "Dimensions", page 6
0.585 kg
0.692 kg
0.585 kg
0.692 kg
Materials
Base-plate
Housing
Housing colors
Base and cover
Light gray, RAL7035
Auxiliary switch (optional)
Switch type
Changeover contact
Switching point
Switching capacity
Connecting cable
Die-cast aluminum
Polycarbonate
at approx. 50 % stroke
AC 250 V 3 A resistive
2 A inductive
3-core, 1.8 mm
2
18 AWG (0.96 mm )
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Siemens Building Technologies
HVAC Products
Elctromotoric Actuators
CA1N4865en
20.04.2011
General ambient conditions
Operation
EN 60721-3-3
Environmental conditions
Transport
EN 60721-3-2
Storage
EN 60721-3-2
Class 3K3
Class 2K3
Class 2K3
Temperature
+1 ... +50 °C
–25 ... +70 °C
–5 ... +50 °C
Humidity
5 ... 85 %rh
< 95 %rh
5 ... 95 %rh
Connecting cable
Cable
SFP21/18
AC 230 V
Cable color
Connection
Operating voltage
2-core
SFP71/18
AC 24 V
Cable color
Connection
Brown
L
Red
G
Blue
N
Black
G0
Auxil. switch ASC2.1/18
Black / Red
Input
Black / Red
Input
(optional)
Black / Blue
N/C contact
Black / Blue
N/C contact
3-core
Black / Pink
N/O contact
Black / Pink
N/O contact
Dimensions
All dimensions in mm
Actuators without
auxiliary switch
SFP21/18, SFP71/18
01466
58
79,7
80
01467
112
Actuators with
auxiliary switches
SFP21/18, SFP71/18
with ASC2.1/18
106
01687
58
79,7
01688
112
Revision numbers
Product number
SFP21/18
Valid from rev. no.
H
6/6
 2009-2011 Siemens Switzerland Ltd.
Siemens Building Technologies
HVAC Products
Elctromotoric Actuators
Product number
SFP71/18
Valid from rev. no.
H
Subject to change
CA1N4865en
20.04.2011
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