Siemens SQK33.00, SQU83, SQL33.0 User Manual

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SQK33.00

Electric actuators for
butterfly valves

with 90° angle of rotation

• SQK33.00 Operating voltage AC 230 V

• SQL33.0... Operating voltage AC 230 V

• SQL83.00 Operating voltage AC 24 V

• 3-position control signal

• 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

SQK33.00
SQL33.0...
SQL83...

SQL33.00
SQL83.00

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Use

CM1N4506en

07.06.2004

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.
The actuators can be fitted with additional auxiliary switches and potentiometers

Siemens Building Technologies

HVAC Products

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Functions

If the actuator is driven by a 3-position signal from the controller, it generates a rotary
motion which is transferred to the valve (butterfly, slipper valve, three-port or four-port
mixing valve).

Direction of rotation of the actuator on delivery:

• Voltage at Y1 = Clockwise rotation

• Voltage at Y2 = Anti-clockwise rotation

• No voltage = No rotation; actuator fixed in relevant position

The direction of rotation can be reversed if required.

Extending the actuator
functions

• The SQK33.00 actuator can be fitted with an auxiliary switch

• The SQL… actuators can be fitted with an auxiliary switch, a dual auxiliary switch or

an auxiliary switch and a 1000-ohm potentiometer.

If an auxiliary switch and/or potentiometer are fitted, the electrical wiring must take
account of this. Refer to the wiring diagram under the actuator cover and see also the
"Commissioning" and "Connection diagrams" sections in this data sheet.

Types

Type Operating Control Run-time Space for Accessory function
voltage signal for 90° at 50 Hz accessories

SQK33.00

SQL33.00

SQL33.03
SQL83.00

AC 230 V 3-position 125 s 1 x ASC9.5 only 1 auxiliary switch

AC 230 V 125 s 1 x ASC9.5 or 1 auxiliary switch

AC 230 V 3-position 30 s 1 x ASC9.4 or 1 dual auxiliary switch

AC 24 V 125 s 1 x ASZ7.4 1 auxiliary switch and 1000 Ω potentiometer

Mounting kits

ASK31 For slipper valves, type VBF21 … (DN65 ... DN150), Series 01
ASK32 For slipper valves, type VB… / VC (DN¾"... DN1½") Series 02

or VBF21... (DN40 / 50)

ASK33 For butterfly valves, type VKF41… (DN40 ... DN200), K1i... (¾”...1¼”)
ASK40 For slipper valves from other manufacturers, see data sheet N4291
ASK41 For slipper valves from other manufacturers, see data sheet N4291

Accessories

ASC9.5 1 auxiliary switch
ASC9.4 1 dual auxiliary switch
ASZ7.4 1 auxiliary switch and one 1000-ohm potentiometer

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Ordering

The actuator, slipper valve or butterfly valve, mounting kit and accessories must be
ordered separately.
When ordering, please specify the quantity, product name and type code.

Example:

1 actuator, type SQL33.03, 1 mounting kit, type ASK31 and
1 auxiliary switch with ASZ7.4 potentiometer

Delivery

The actuator, valve or butterfly valve, ASK.. mounting kit and accessories are packed
separately and are not delivered fully assembled.

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HVAC Products 07.06.2004

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Equipment combinations

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.

PN class Data

Valves

SQK33.00 SQL33.00

sheet

Actuators

SQL83.00

Nominal size (DN)

Three-port slipper valves

VBF21...

VBI31...

VBG31...

Other

(Mixing)

(40 ... 50) PN6 N4241 40 / 50 40 / 50 40 / 50

(65 ...150) PN6 N4241 --- 65 ...150 65 ...150

(¾”...1½”) PN10 N4232 ¾”...1½” ¾”...1½” ¾”...1½”

(¾”...1½”) PN10 N4233 ¾”...1½” ¾”...1½” ¾”...1½”

PN6... --- ¾”...1½” ¾”... 2" ¾”... 2"

makes

Four-port valves

VCI31...

Other

(Mixing)

(¾”...1½”) PN10 N4252 ¾”...1½” ¾”...1½” ¾”...1½”

PN6... --- ¾”...1½” ¾”... ¾”... 2"

makes

Butterfly valves

K1i...

VKF41...

(¾”...1¼”) PN6 N4111 ¾”...1¼” ¾”...1¼” ---

(40 ... 200) PN16 N4131 40 40 ... 200 40 ... 200

*) Mounting kits ASK40 and ASK41 for non-Siemens actuators: refer to data sheet N42291

SQL33.03 Mounting

kits

ASK32

ASK31

ASK32

ASK32

ASK40 *)

ASK41 *)

ASK32

ASK40 *)

ASK41 *)

ASK33

ASK33

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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 non­Siemens 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").

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HVAC Products 07.06.2004

Accessory ASC9.5

Accessory ASC9.4

Accessory ASZ7.4

1 auxiliary switch

for SQK33.00,
SQL33.0...
SQL83.00

1 dual auxiliary switch

for SQL33.0...
SQL83.00

1 auxiliary switch and
1 1000-ohm potentiometer

for SQL33.0...
SQL83.00

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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4554Z04

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4554Z06

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4554Z05

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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".

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

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be observed at all times.

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.

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HVAC Products 07.06.2004

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Mounting

Orientation

Commissioning

Mode of operation

Rotary switch for
mode selection

Note

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).

90°

90°

4362Z01

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.

For automatic operation, the rotary switch must be set to "AUTO".

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Reversing the
direction of rotation

"AUTO" = Automatic operation "MAN" = Manual operation

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").
The wiring for the OPEN and CLOSE control signal is not affected.

As supplied Direction of rotation reversed

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Siemens Building Technologies Electric actuators for butterfly valves CM1N4506en
HVAC Products 07.06.2004

Setting the angle of
rotation

Maintenance

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).

Warning !

Disposal

Warranty

Technical data

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.
If necessary, disconnect electrical connections from terminals.

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.

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.

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Power supply Rated voltage

SQK33.00, SQL33.00, SQL33.03
SQL83.00

AC 230 V ± 15 %

AC 24 V ± 20 %
Rated frequency 50 / 60 Hz
Control signal 3-position
Power consumption *)

SQK33.00
SQL33.00, SQL83.00
SQL33.0...

3 VA

4 VA

6.5 VA

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Operating data Run-time for rotation through 90° at 50 Hz at 60 Hz
SQK33.00, SQL33.00

SQL83.00
SQL33.03

Angle of rotation

Factory setting
Adjustment range

125 s
125 s

30 s

90° ± 2°

70° ...180°

105 s
105 s

25 s

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Torque *) Nominal torque Starting torque
SQK33.00

SQL33.03
SQL33.00, SQL83.00

End switch

Switching capacity
Switching differential

5 Nm

10 Nm

12.5 Nm

AC 250 V, 6 (2) A
Approx. 1°

10 Nm
12 Nm
25 Nm

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Materials Housing base and console Die-cast aluminium
Cover Plastic

Dimensions / Weight Dimensions See “Dimensions”
Cable glands ∅ 20,5 (M20) (4x)
Weight

SQK33.00
SQL33.00, SQL83.00
SQL33.03, SQL35.00, SQL85.00

1.25 kg

1.35 kg

1.40 kg

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Ambient conditions Max. admissible temperature of medium in

assembled valve
Operation
– Environmental conditions
– Temperature
– Humidity
Transport
– Environmental conditions
– Temperature
– Humidity
Storage
– Environmental conditions
– Temperature
– Humidity

> 120 °C
To IEC 721-3-3
Class 3K5
–15 ... +55 °C
5 ... 95 % rh
To IEC 721-2-3
Class 3K2
– 30 ... +65 °C
< 95 % rh
To IEC 721-1-3
Class 3K1
–15 ... +55 °C
0 ... 95 % rh

Industry standards Meets the requirements for CE marking in

EMC Directive
Low Voltage Directive

89/336/EEC
73/23/EEC

Housing protection standard IP44 to IEC529 / DIN40050

Accessories ASC9.5 Auxiliary switch
ASC9.4

Switching capacity

Switching differential
ASZ7.4
Switching capacity

Switching differential
Change in resistance

Dual auxiliary switch
AC 250 V,
10 A resistive / 3 A inductive
Approx. 1°
Auxiliary switch with potentiometer
AC 250 V,
10 A resistive / 3 A inductive
Approx. 1°
0 ... 90° corresponding to

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0 ...1000 ohm

*) These values apply at nominal voltage, at an ambient temperature of 20°C and at the
specified nominal running time

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Siemens Building Technologies Electric actuators for butterfly valves CM1N4506en
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Connection diagrams

SQL83.00

Dimensions

SQK33.00

SQL33.0... / SQL83.00

Overall height of valve
and actuator

SQK33.00 SQL33.00, SQL33.03

Cm1 End switch
Cm2 End switch
c1 1 auxiliary switch ASC9.5 or
c1, c2 1 dual auxiliary switch ASC9.4
or
c1, 1000Ω 1 installable module ASZ7.4
(1 auxiliary switch and
1 potentiometer)

All dimensions in mm

Installation height H*
for actuator with mounting kit
ASK31 162 mm
ASK32 132 mm

∅ 20,5 (M20)

ASK33 162 mm

Installation height H*
for actuator with mounting kit
ASK31 188 mm
ASK32 158 mm
ASK33 188 mm

∅ 20,5 (M20)

= 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

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Siemens Building Technologies Electric actuators for butterfly valves CM1N4506en
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 2004 Siemens Building Technologies Ltd. Subject to technical alteration