Protection Devices; Se-B1 Or Se-B3; Se-B2 Or Se-B3; Differential Oil Pressure Switch Delta-Pii (Option) - Bitzer 2KES-05 Instructions De Service

Information
Manual reset of compressor protection devices
must not be changed to automatic reset by us-
ing external measures!

5.4 Protection devices

All protective functions listed can also be assumed by
the compressor module CM-RC-01 (motor temperature,
CIC) or connected to it (Delta PII, OLC-K1, HP, LP, oil
heater). For further information, see Technical Informa-
tion KT-230 and brochure KP-104.
NOTICE
!
!
Potential failure of the compressor protection
device and the motor due to improper connec-
tion and/or faulty operation!
The terminals M1-M2 or T1-T2 on the com-
pressor and B1-B2 on the protection device as
well as its two orange cables must not come
into contact with the control voltage or operating
voltage!
5.4.1

SE-B1 or SE-B3

Standard for:
• 2KES-05(Y) .. 2FES-3(Y)
• 2EES-2(Y) .. 2CES-4(Y)
• 4FES-3(Y) .. 4BES-9(Y)
• 4VE(S)-6Y .. 4NE(S)-20(Y)
• 2DES-3.F1Y
• 4FE-5.F1Y .. 4CE-6.F1Y
• 4DE-7.F3Y .. 4CE-9.F3Y
• 4VE-7.F3Y .. 4NE-20.F4Y
• 4FDC-5Y .. 4CDC-9Y
• 4VDC-10Y .. 4NDC-20Y
5.4.2

SE-B2 or SE-B3

Standard for:
• 4JE-13Y .. 4FE-35(Y)
• 6JE-22Y .. 6FE-50(Y)
• 8GE-50(Y) .. 8FE-70(Y)
Both protection devices are permanently incorporated
in the terminal box. The instrument leads for the motor
temperature sensor are wired. For further connections,
see Technical Information KT-122 or KT-210 and
KT-220.
20
5.4.3

Differential oil pressure switch Delta-PII (option)

for the following compressors equipped with oil pump,
incl. the respective tandem compressors:
• 4VE-6Y .. 4NE-20(Y)
• 4JE-13Y .. 4FE-35(Y)
• 6JE-22Y .. 6FE-50(Y)
• 8GE-50(Y) .. 8FE-70(Y)
• 4FE-5.F1Y .. 4CE-6.F1Y
• 4DE-7.F3Y .. 4CE-9.F3Y
• 4VE-7.F3Y .. 4NE-20.F4Y
For the electrical connection and information on func-
tion testing, see Technical Information KT-170.
5.4.4 Opto-electronic oil level monitoring OLC-K1
(option)
for the following compressors equipped with centrifugal
lubrication, incl. the respective tandem compressors:
• 4FES-3(Y) .. 4BES-9(Y)
• 4VES-6Y .. 4NES-20(Y)
• 4FDC-5Y .. 4CDC-9Y
• 4VDC-10Y .. 4NDC-20Y
For the electrical connection and information on func-
tion testing, see Technical Information KT-180.
5.4.5

Discharge gas temperature sensor

Option for:
• 4FES-3(Y) .. 4BES-9(Y)
• 4VE(S)-6Y .. 4NE(S)-20(Y)
• 4JE-13Y .. 4FE-35(Y)
• 6JE-22Y .. 6FE-50(Y)
• 8GE-50(Y) .. 8FE-70(Y)
• 4FE-5.F1Y .. 4CE-6.F1Y
• 4DE-7.F3Y .. 4CE-9.F3Y
• 4VE-7.F3Y .. 4NE-20.F4Y
• 4FDC-5Y .. 4CDC-9Y
• 4VDC-10Y .. 4NDC-20Y
can be retrofitted.
• Screw the sensor element into the HP connection,
see chapter Connection diagrams of single com-
pressors, page 12.
KB-104-7