FD
12
SECTION 4: START UP
4.1 PRE-START CHECK
Check that all power cables are correctly connected and all terminals are fastly fixed.
The voltage at the phase R S T clamps must be the one indicated on the unit label ± 5% tolerance. If this
should not happen, please, contact our Factory.
Caution: before proceeding to start up, check that all the cover panel be
located in the proper position and locked with fastening screws.
4.2 START UP
Before to proceed to start up, close electrical line main switch (not supplied with the unit): the green led (line)
will be lit up.
All the units are provided with microprocessor control that manages all the various functions of the unit.
To start the unit, activate humidity switch by rotating the knob or by pressing the instrument keyboard,
depending on the type of instrument installed): the green light (
WORKING
) will be
ON
.
For temporary stop (night-time, weekend, etc.) never break the power supply and strictly
follow the procedures illustrated at paragraph 4.6.
4.3 SIGNALLING LEDS PANEL
Units are provided with signalling light panel that indicates unit
operational status. Below is reported a brief description of their meaning.
Electrical supply RED Light (POWER):
indicates that unit is properly electrically supplied.
Compressor RED Light (WORKING):
indicates humidistat call and running compressor status.
Alarm GREEN Light (ALARM):
indicates the unit alarm status.
Defrost Light (RED):
indicates that the defrost cycle is on.