Before Starting - Bühler technologies ELK Serie Guía Rápida

ELK
Adjust the motor circuit breaker according to the nominal
value specified on the type plate of the motor. Operation out-
side the specified mains voltage and frequency range limits is
prohibited.
Take appropriate measures to protect energised parts from
being touched by persons and/or interference from foreign
objects.
The operator of the equipment is responsible for ensuring
lightning protection.
Connect the protective earth of the motor to the protective
earth on site. Protective earth per DIN VDE 0100 must be con-
nected to the marked earth lead terminal.
4.4.1 Electrical connection temperature switch TSA
(accessory)
The temperature switch TSA is installed in a cooling circuit
with an oil/air cooler ELK as a typical application. Through
reaching the switching temperature the fan-motor is
switched-on and the oil will be cooled. After falling under the
hysteresis the motor shuts off.
If the cooling matrix has an optional temperature contact
type TSA, the maximum values (see below) must not be ex-
ceeded. If connecting it to a relay, a free wheel circuit has to be
added. Carry out the connection according to the following
specifications (numbering inside the connector):
Terminal 1 – 2 Contacts
Terminal 3 Not used
Terminal PE Protective earth
Temperature T50 switching
switch TSA
temperature
T60
T70
max. voltage
max. switching
current
switching function
Hysteresis
protection class
10 Bühler Technologies GmbH
Example wiring with temperature switch
F1 Fuse
F2 Fuse
F3 Fuse
H1 Mains switch
Relay, circuit breaker and protecting devices are not part of
the delivery.
5 Operation and control
Danger due to rotating fan
Injuries to the hand may occur. Do not reach into the safety
guard!
50 °C
The device must not be operated beyond its specifications.
60 °C
70 °C
230 V AC/D
Abrupt flow variation can lead to pressure peaks that may
damage the cooler matrix. Make sure that the specifications
2 A, contact load
are not exceeded in this case!
max. 100 VA
NC
approx. 10 °C

5.1 Before starting

• Check that all parts are free of damage, especially the
IP 65
cooling element and fan guard. Do not put a damaged
device into operation.
• Check if the two warning labels (rotating parts) on the
cooler's housing are fitted.
• Check the correct connections of oil and power circuits ac-
cording to chapter „Installation and connection".
• Make sure that all valves or other parts in the cooling cir-
cuit, which have to be opened, are opened.
WARNING
NOTICE
NOTICE
K1 Relay
K2 Circuit breaker
S1 Protecting device
S2 Protecting device
BX350034 ◦ 08/2022