Danfoss LLS 4000, LLS 4000U Installation guide

Installation guide/Quick start

Liquid Level Switch

Type LLS 4000 / LLS 4000U

Warning! This is a Class A device. This device may cause radio

148R9650

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.

M12 male Electrical

148R9650

connector

Heat sink (do not cover)

Hexagon 32 mm

Process connection

Mechanical part Electronic part

G ¾” or ¾” NPT

Fig. 1

BSV

SVA

SFA

+DSV

SVA

FIA

SNV

SCA-X

Liquid sensing part

SVA

SNV

RT

260A

SNV

BSV

LLG

LLS 4000

SVA

AKS 4100

LLG

SCA-X

SNV

SVA

260A

EKE

347

ICF 25-6-5A

FIA

SNV

RT

SNV

SVA

BSV

SNV

SVA

GD

REG

QDV

15

SVA

Fig. 2

LLS 4000

45°

Weld connector G ¾”

LLS 4000U Weld connector NPT ¾”

Note:

Horizontal installation Recommended

Weld connector Clean for particles

uninterrupted hole size no reduction

Fig. 4

Note: Vertical or inclined installation not recommended:

Risk of Gas Pockets

Fig. 3 Fig. 5

Torque (LLS 4000 only): 10 Nm/7.4 lb ft pre-tightening + 45 degrees clockwise rotation

Fig. 6

LLS 4000

LLS 4000U

Clean joining surfaces

Alu-gasket

G ¾”

Teﬂon (PTFE) tape

NPT ¾”

32 mm

max

45 mm

1.8 in

min

25 mm

1 in

Cable with M12 female connector

1

Color code M12 cable

Fig. 7

4

3

Black

Relay: 30 V DC 200 mA

Hand-tighten clockwise

3

Red

2

Green

White

Black

1

2

3

4

Danfoss M12 cables

Green

- White

+ Red

034G7073, M12 cable female x 2 meter 034G7074, M12 cable female x 8 meter Cables not included with LLS 4000/4000U

24 V DC +/- 25%

1

2

Note: Fasten the wire approx. 100 mm from the LLS

Fig. 8