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Installation guide/Quick start
Liquid Level Switch
Type LLS 4000 / LLS 4000U
Warning! This is a Class A device.
This device may cause radio
interference in residential areas.
In case of interference, the operator
may be required to take
appropriate measures.
This instrument has to be mounted
on a metallic tank.
The device is intended to be used in
industrial areas.
Fig. 1
BSV
BSV
Fig. 2
© Danfoss | Climate solutions | 2022.06
SVA
SVA
SVA
SFA
+DSV
SCA-X
FIA
SNV
RT
260A
SNV
SNV
SVA
M12 male Electrical
connector
Heat sink (insulation allowed, if media temperature
is less than ambient temperature)
Hexagon 32 mm
Process connection
G ¾" or ¾" NPT
Liquid sensing part
SVA
AKS 4100
SVA
LLG
LLS 4000
LLG
LLS 4000
SNV
SVA
SCA-X
FIA
BSV
SNV
RT
260A
SNV
SVA
EKE
347
GD
ICF 25-6-5A
REG
SVA
SVA
BSV
SVA
SNV
QDV
15
SNV
AN317523977313en-000402 | 1
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Summary of Contents for Danfoss LLS 4000
- Page 1 Installation guide/Quick start Liquid Level Switch Type LLS 4000 / LLS 4000U Warning! This is a Class A device. This device may cause radio interference in residential areas. M12 male Electrical In case of interference, the operator connector may be required to take appropriate measures.
- Page 2 LLS 4000 Alu-gasket G ¾” 32 mm Teflon (PTFE) tape 25 mm 1 in min. LLS 4000U 45 mm 1.8 in NPT ¾” max. Clean joining surfaces Fig. 6 2 | AN317523977313en-000402 © Danfoss | Climate solutions | 2022.06...
- Page 3 White Black Danfoss M12 cables 034G2201, straight M12 cable female x 2 meter 034G2200, straight M12 cable female x 8 meter Cables not included with LLS 4000/4000U Relay: 30 V DC 24 V DC +/- 25% 200 mA Fig. 7...
- Page 4 Not recommended in these applications because 1) A High Level Alarm may not be registered at a power failure 2) A Low Level Alarm may not be registered at a power failure 4 | AN317523977313en-000402 © Danfoss | Climate solutions | 2022.06...
- Page 5 Note: R410A (HFC) -50 °C – +61 °C (-58 °F – +142 °F) For other medias and mixed medias, please contact Danfoss. R513A (HFC) -50 °C – +83 °C (-58 °F – +181 °F) R1234ze(E) (HFO)* -50 °C – +85 °C (-58 °F – +185 °F) PAO (Oil)** Max 5000 cP and +120 °C (Max 5000 cP and +248 °F)
- Page 6 M12x1 M12x1 3/4 NPT G3/4 19,5 0.77 LLS 4000 (mm) LLS 4000U (in) Fig. 10 6 | AN317523977313en-000402 © Danfoss | Climate solutions | 2022.06...
- Page 7 Always download or update to latest App version. Devices with Firmware PV01 (see product label) must be Firmware updated to latest firmware before configuration. Please contact Danfoss. Configuration LLS______ Configurable Pin code: 0000 © Danfoss | Climate solutions | 2022.06 AN317523977313en-000402 | 7...
- Page 8 - If media detection or non-detection by the level switch could generate a hazard the SIL version and specific instructions described in the safety manual (periodic proof test) should be used. The SIL safety manual can be downloaded from Danfoss web site or by scanning the QR code below.