506
4
SQL33.00
SQL83.00
SQK33.00
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SQK33.00
SQL33.0...
SQL83...
Electric actuators for
butterfly valves
with 90° angle of rotation
• SQK33.00
• SQL33.0... Operating voltage AC 230 V
• SQL83.00 Operating voltage AC 24 V
• 3-position control signal
Operating voltage AC 230 V
• Auxiliary switch and potentiometer for additional functions
• Nominal angle of rotation 90°
• Reversible electric motor
• For mounting on butterfly valves and slipper valves with ASK… mounting kit
• With manual adjuster and position indicator
Use
For use in heating, ventilation and air conditioning systems to operate Siemens butterfly
valves and three-port and four-port slipper valves (mixing valves), types K1i…,
VKF41…, VB… and VC... (see "Equipment combinations") and valves from other
manufacturers.
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The actuators can be fitted with additional auxiliary switches and potentiometers
Siemens Building Technologies
HVAC Products
CM1N4506en
07.06.2004
Equipment combinations
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The table below shows which actuators may be used with which slipper valves and
butterfly valves, and indicates the appropriate mounting kits in each case.
Actuators
PN class
Data
sheet
SQK33.00
SQL33.00
SQL83.00
SQL33.03 Mounting
kits
Valves
Nominal size (DN)
Three-port slipper valves
VBF21...
(Mixing)
(40 ... 50)
(65 ...150)
(¾”...1½”)
(¾”...1½”)
PN6
N4241
N4241
N4232
N4233
---
40 / 50
---
40 / 50
65 ...150
¾”...1½”
¾”...1½”
¾”... 2"
40 / 50
65 ...150
¾”...1½”
¾”...1½”
¾”... 2"
ASK32
PN6
ASK31
VBI31...
VBG31...
Other
PN10
PN10
PN6...
¾”...1½”
¾”...1½”
¾”...1½”
ASK32
ASK32
ASK40 *)
ASK41 *)
makes
Four-port valves
(Mixing)
VCI31...
Other
(¾”...1½”)
PN10
N4252
---
¾”...1½”
¾”...1½”
¾”...1½”
¾”...
¾”...1½”
¾”... 2"
ASK32
PN6...
ASK40 *)
ASK41 *)
makes
Butterfly valves
K1i...
(¾”...1¼”)
PN6
N4111
N4131
¾”...1¼”
40
¾”...1¼”
---
ASK33
ASK33
VKF41...
(40 ... 200)
PN16
40 ... 200
40 ... 200
*) Mounting kits ASK40 and ASK41 for non-Siemens actuators: refer to data sheet N42291
Mechanical design
The electric actuators require no maintenance. They have a reversible synchronous
motor and reduction gears with self-lubricating sinter bearings. The housing base and
the console are die-cast aluminium, and the cover is plastic.
"AUTO" and "MANUAL" modes can be selected with a rotary switch on the housing
base. When the switch is set to "MANUAL", the actuator and valve can be operated
with a manual lever. For manual operation, the angle of rotation is mechanically limited
by an end-stop.
The actuators supplied have a 90° angle of rotation suitable for the Siemens valves.
During automatic operation, rotation is limited by two built-in end-switches. For non-
Siemens valves, the angle of rotation in the range 70° to 180° can be selected by
repositioning the switching cams.
The direction of operation of the actuator can be reversed (refer to "Commissioning").
3/8
Siemens Building Technologies
HVAC Products
Electric actuators for butterfly valves
CM1N4506en
07.06.2004
Rotary "AUTO" / "MAN" switch
Manual lever
Console (e.g. ASK31 mounting kit)
Terminal strip
Dual end-switch (always factory fitted)
Connector for reversal of direction of rotation
(only with SQK33.00, SQL33.0…, SQL83.00)
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Accessory ASC9.5
Accessory ASC9.4
1 auxiliary switch
for SQK33.00,
SQL33.0...
SQL83.00
1 dual auxiliary switch
for SQL33.0...
SQL83.00
Accessory ASZ7.4
1 auxiliary switch and
1 1000-ohm potentiometer
for SQL33.0...
SQL83.00
Engineering
• Butterfly valves: see data sheets N4100 … N4199.
• Three-port and four-port slipper valves: see data sheets N4200 … N4299.
• Admissible ambient temperatures, see "Technical data".
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Electrical installation
The actuators must be electrically connected in accordance with local regulations and
with the connection diagrams.
Regulations and requirements to ensure the safety of people and property must
be observed at all times.
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If additional functions are to be controlled by the actuator, the ASC9.. (auxiliary switch)
or ASZ7.5 (auxiliary switch / potentiometer) must be fitted. The relevant switching
point(s) and zero-ohm position must be noted in the plant documentation.
4/8
Siemens Building Technologies
HVAC Products
Electric actuators for butterfly valves
CM1N4506en
07.06.2004
Mounting
Mounting instructions are enclosed with the mounting kit.
The valve, actuator and mounting kit are packed separately. The valve and actuator
can be assembled easily on site. There is no need for special tools or calibration.
Take care to install the valve the right way up. Refer to the mounting instructions for the
valve concerned (butterfly or slipper valves).
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Orientation
90°
90°
Commissioning
When commissioning the complete motorised valve, consisting of actuator, mounting kit
and (butterfly or slipper) valve, check the wiring and test the functions. This also
applies to any additional components fitted (e.g. auxiliary switch or potentiometer).
Siemens slipper valves up to DN50 can be commissioned without an actuator being
fitted. In this case, the flow rate must be adjusted manually with the standard manual
adjuster fitted to the valve.
Note
For automatic operation, the rotary switch must be set to "AUTO".
Mode of operation
Rotary switch for
mode selection
"AUTO" = Automatic operation
"MAN" = Manual operation
Reversing the
The actuators are factory-set to rotate in a clockwise direction (as seen from the front).
The direction of rotation can be reversed by repositioning a connector located under the
cover (see "Mechanical design").
direction of rotation
The wiring for the OPEN and CLOSE control signal is not affected.
As supplied
Direction of rotation reversed
5/8
Siemens Building Technologies
HVAC Products
Electric actuators for butterfly valves
CM1N4506en
07.06.2004
Setting the angle of
rotation
The angle of rotation is factory-set to 90°. However, the angle can be changed to
between 70° and 180°. This may be necessary when using non-Siemens valves.
Special notes on this subject will be found in the mounting instructions for the ASK40
and ASK41 (mounting kits for non-Siemens valves).
Maintenance
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The actuators require no maintenance.
When servicing the valve and/or actuator: switch OFF the pump and power
supply, close the main shut-off valve in the pipework, release pressure in the
pipes and allow them to cool down completely.
Warning !
If necessary, disconnect electrical connections from terminals.
Disposal
The device may 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 in conjunction with the
Siemens valves (butterfly and slipper valves) and third-party valves for use with the
ASK40 / ASK41, as described under "Compatibility". The use of third-party valves
other than those recommended by Siemens invalidates the warranty.
Technical data
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Power supply
Rated voltage
SQK33.00, SQL33.00, SQL33.03
SQL83.00
AC 230 V ± 15 %
AC 24 V ± 20 %
50 / 60 Hz
Rated frequency
Control signal
3-position
Power consumption *)
SQK33.00
3 VA
SQL33.00, SQL83.00
SQL33.0...
4 VA
6.5 VA
Operating data
Run-time for rotation through 90°
SQK33.00, SQL33.00
SQL83.00
at 50 Hz
125 s
125 s
30 s
at 60 Hz
105 s
105 s
SQL33.03
25 s
Angle of rotation
Factory setting
90° ± 2°
Adjustment range
70° ...180°
6/8
Siemens Building Technologies
HVAC Products
Electric actuators for butterfly valves
CM1N4506en
07.06.2004
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Torque *)
Nominal torque
5 Nm
Starting torque
10 Nm
SQK33.00
SQL33.03
10 Nm
12 Nm
SQL33.00, SQL83.00
End switch
12.5 Nm
25 Nm
Switching capacity
Switching differential
AC 250 V, 6 (2) A
Approx. 1°
Materials
Housing base and console
Cover
Die-cast aluminium
Plastic
Dimensions / Weight
Dimensions
See “Dimensions”
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Cable glands
∅ 20,5 (M20) (4x)
Weight
SQK33.00
1.25 kg
1.35 kg
1.40 kg
SQL33.00, SQL83.00
SQL33.03, SQL35.00, SQL85.00
Ambient conditions
Max. admissible temperature of medium in
assembled valve
Operation
> 120 °C
To IEC 721-3-3
Class 3K5
– Environmental conditions
– Temperature
–15 ... +55 °C
5 ... 95 % rh
To IEC 721-2-3
Class 3K2
– Humidity
Transport
– Environmental conditions
– Temperature
– 30 ... +65 °C
< 95 % rh
– Humidity
Storage
To IEC 721-1-3
Class 3K1
– Environmental conditions
– Temperature
–15 ... +55 °C
0 ... 95 % rh
– Humidity
Industry standards
Accessories
Meets the requirements for CE marking in
EMC Directive
89/336/EEC
73/23/EEC
Low Voltage Directive
Housing protection standard
IP44 to IEC529 / DIN40050
ASC9.5
Auxiliary switch
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ASC9.4
Dual auxiliary switch
AC 250 V,
Switching capacity
10 A resistive / 3 A inductive
Approx. 1°
Switching differential
ASZ7.4
Auxiliary switch with potentiometer
AC 250 V,
Switching capacity
10 A resistive / 3 A inductive
Approx. 1°
Switching differential
Change in resistance
0 ... 90° corresponding to
0 ...1000 ohm
*) These values apply at nominal voltage, at an ambient temperature of 20°C and at the
specified nominal running time
7/8
Siemens Building Technologies
HVAC Products
Electric actuators for butterfly valves
CM1N4506en
07.06.2004
Connection diagrams
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SQK33.00
SQL33.00, SQL33.03
Cm1
Cm2
c1
End switch
SQL83.00
End switch
1 auxiliary switch ASC9.5 or
1 dual auxiliary switch ASC9.4
or
c1, c2
c1, 1000Ω 1 installable module ASZ7.4
(1 auxiliary switch and
1 potentiometer)
Dimensions
SQK33.00
All dimensions in mm
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Installation height H*
for actuator with mounting kit
ASK31
ASK32
ASK33
162 mm
132 mm
162 mm
SQL33.0... / SQL83.00
Installation height H*
for actuator with mounting kit
ASK31
ASK32
ASK33
188 mm
158 mm
188 mm
Overall height of valve
and actuator
= Installation height of slipper or butterfly valve from the middle of the pipe
+ Installation height H* of the actuator with mounting kit
+ Minimum clearance from ceiling or wall for mounting, connection,
operation, service etc.
∆
>100 mm
∆ ∆ >200 mm
2004 Siemens Building Technologies Ltd.
Subject to technical alteration
8/8
Siemens Building Technologies
HVAC Products
Electric actuators for butterfly valves
CM1N4506en
07.06.2004
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