Proline Low-temperature Thermostats
YACE0072 / 21.08.07 Starting up 25
7 Starting up
7.1 Mains connection
Compare the rating on the nameplate (back of control head and behind the front panel) with the mains
voltage.
The device is according to EMC standard DIN EN 61326-1 Class B.
− Connect unit only to sockets with a protective earth conductor (PE).
− No liability is accepted for incorrect mains connections.
− Ensure that pump connectors without external loads are closed off.
− Ensure that the unit is filled according to Section 6.2.
7.2 Switching on
Check whether the main fuse switch at the back is in the "On =
–"
position.
Switch on the mains switch:
− The green LED for "Mains ON" is lit,
1 s
− an acoustic signal is emitted for about 1 second,
− it is quite normal if the refrigerating machine makes a rattling sound
for a few seconds.
− The unit starts its self-test. All display segments and symbols
appear for about 1 second.
− The momentary bath temperature is displayed,
− the pump starts provided "Standby" or "Manual start" (Ì Section
7.8.2) has not been programmed,
− all values are accepted whic
h were active before switch-off.
Check or set overtemperature cut-off point:
− The switching point is shown in the LED display on pressing the key
.
− Change overtemperature cut-off Ì Section 7.14.1 Overtemperature
protection and chec
king on page 91.
− If necessary, top up heat carrier liquid, this has been pumped out by
filling the external load.
Self-test
77(((
°C
EXT
Bath temperature
/1%21
°C
Overtemp. cut-off
8/
°C
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