Honeywell LKS 131 User manual

1 EN2C-0111SZ20 R0202
PRODUCT HANDBOOK
ACTUATOR
LKS 131
FOR AIR DAMPERS ON SINGLE, DUAL STAGE AND
MODULATING BURNERS
CONTENTS
GENERAL
Description ................................................................. 2
Features ...................................................................... 2
TECHNICAL DATA
Specification ............................................................... 3
Dimensional drawings ................................................ 4
INSTALLATION AND OPERATION
Installation and final checkout .................................... 5
Circuit diagrams ......................................................... 6
VARIOUS
Standards and approvals ........................................... 7
Ordering information .................................................. 7
Accessories ................................................................ 7
APPLICATION
The LKS 131 air damper actuator is designed to be fitted to
multi-stage or modulating oil and gas burners with fully
closed position.

EN2C-0111SZ20 R0202 2
A synchronous motor powers an output shaft and a backlash-
free cam shaft via a gear reducer.
The cam shaft operates limit and auxiliary switches. The
GENERAL
Electric actuator up to 0.6 Nm
• Drive times: 3 ... 38 sec.
• Variants: - clockwise or counter clockwise rotation
- with integrated electronic circuitry
- shaft version
DESCRIPTION
position at which one of the limit or auxiliary switches operates
can be adjusted steplessly within the operating range using
the associated cam disc. Spindle-driven cams, which can be
adjusted with a screwdriver, are available.
FEATURES
• Internal position indicator
• Easily adjustable limit and auxiliary switches
• Synchronous motor

3 EN2C-0111SZ20 R0202
Diagram Shaft Drive Load torque Holding Voltage Type Remarks
time torque
Nr. Nr. s Nm Nm V
S3 2 5 0,6 0,4 230 LKS 131-05 B 2-5 S3
S3.1 2 5 0,6 0,4 230 LKS 131-08 B 2-5 S3.1 Without plug
S6 2 5 0,6 0,4 230 LKS 131-09 B 2-5 S6 On/off movement only
S3 2 38 0,6 0,4 230 LKS 131-12 B 2-38 S3
S8 6 15 0,6 0,4 230 LKS 131-15 B 6-15 S8 Limit switch and potentiometer 1k
S5 6 15 0,6 0,4 230 LKS 131-16 B 6-15 S5
S20-2 6 38 0,6 0,4 230 LKS 131-17 B 6-38 S20-2 With special 8 mm shaft
S3 6 5 0,6 0,4 230 LKS 131-18 B 6-5 S3 With special 8 mm shaft
2) 3)
4)
6)
5)
7)
Technical Data
Housing
•impact-proof, heat-resistant synthetic material
Colour: black
Drive motor
•reversible synchronous motor
Switch point setting
•via stepless cam setting, spindle-driven cam with
superimposed scale
Position indicator
•via co-rotating scale (under the cover)
Connection system
•fixed cable connection with 9-pin plug
Gearing
•spur gearing, maintenance-free
Output shaft
•standard plastic, interior square 8 mm
Fitting and fastening
•Fastened from inside via tapped M 5 through-holes
PCBs
•for all electrical functions, increased conductor thickness
Mains voltage
•230 V -15% +10% or
110 V -15% +10%
Mains frequency
•50 Hz or 60 Hz
Safety class
•II VDE 0631
Power consumption
•approx. 9 VA
Duty cycle
•50% in 2 minutes
Interference suppression
•N (according to VDE 0785)
Actuating angle
•max. 90°
Mounting position
•any
Protection
•IP40, with appropriate design of the cable entries and
screw fastening (DIN 40050)
Cable connection
•via 9-pin AMP socket connector
1)
SPECIFICATION
TECHNICAL DATA
counter clockwise rotation
Type overview
Legend
1) when viewing from direction A (see dimensional drawing)
2) see “Circuit diagrams”
3) see “Dimensional drawing”
4) at 50 Hz for 90°
at 60 Hz, Drive times are about 20 % shorter
5) under nominal conditions
under extreme conditions (e.g. +60 °C, 230V -15%) the torques will be 25% lower
6) +10% -15%; 50...60Hz
at -15%; torque reduced by approx. 20% at undervoltage
7) Standard: Lever-operated cam

EN2C-0111SZ20 R0202 4
DIMENSIONAL DRAWING
8,5
47
62
100
60
D) Fixing hole
through-hole 5,3 mm inside dia
85
D25,2
6,5
1
14
8
cable output
Direction of rotation
•see “Type overview”
Torque and holding torque
•see “Type overview”
Drive times
•5, 15, 38 sec. for 90°
Limit and auxiliary switches
•max. 7
operation with adjustable cam discs, cams coloured in
normal way:
blue fully closed position
orange low load
red high load
black spare switches for additional functions
•switching voltage
AC 24....230 V
•switching capacity
with inductive loads 250 VA
Ambient temperature
•operation 0 ... +60°C
•transport and storage -20 ... +60°C
Condensation, icing and exposure to water not
permitted
Weight
• approx. 500 g
A

5 EN2C-0111SZ20 R0202
• The regulations and standards applicable in each
particular case must be observed.
• Installation and commissioning must only be
carried out by qualified technicians.
• Electrical wiring must comply with national and
local regulations.
• Always lay the burner ignition cable separately
and as remotely as possible from the device and
other cables.
• Carefully check all cabling and wiring prior to
commissioning.
• Disconnect the actuators completely from the
power supply when working close to terminals
and connections.
• Screw the housing cover securely in place to
provide shock-hazard protection on the actuator
and all electrical connections.
• Electromagnetic emissions must be checked on
a case by case basis.
INSTALLATION AND OPERATION
INSTALLATION AND FINAL CHECKOUT

EN2C-0111SZ20 R0202 6
CIRCUIT DIAGRAMS
S4
S3
S5 S6
S7 S8

7 EN2C-0111SZ20 R0202
LKS 131-09 B 2 - 38 S3
Circuit version
Drive time for 90°
5 s
15 s
38 s
Type of drive shaft
1Interior square 8 mm
2Interior square 8 mm or any angle
6Special shaft, e.g. round 6
Direction of rotation
Aclockwise
Bcounter-clockwise
Model
Series
Not for creation of new type
Conformity
• In accordance with EU Directives 73/23/EU
and 93/68/EU. Conforms to
EN 60730 – 1 : 1991 A1 and A11 : 1991
EN 60730 – 2 – 5 : 1991
ORDERING INFORMATION
Special versions with potentiometer on request
STANDARDS AND APPROVALS
ACCESSORIES
VARIOUS