INSTRUCTION MANUAL
UG30 CONTROL
mP30-UG30 - Rev. 1.5 - Date: 18-03-2004
EN
19 (44)
UNIT START-UP CONDITIONS
In order for the unit to be Started-up it is necessary that there are no active alarms, that the control programme
receives power and that one of the following conditions is verified:
•
Check that the yellow light of key
is lighted (control powered up);
•
Check if the red light of key
is OFF (no alarm activated);
•
The operator must have pressed key
ON
OFF
so that the green light on the key is lighted and the fan symbol
appears on the display;
•
if the remote input was selected (USER parameter
HE=1
), digital input
ID1
must be in the closed contact
position. The words
on the display refer to the status of the conditioner.
•
if the supervisor is connected and the unit is configured (see USER parameters
Ho
and
HP
), the unit must be
enabled by the supervisor;
•
If using daily or weekly hour bands, they must enable power up of the control;
SWITCHING THE UNIT ON AND OFF
The unit can be switched ON in one of the following modes:
Local MODE from keyboard
: the unit is commanded by the
ON
OFF
push-button (when first pressed, the unit starts,
and when pressed again, it stops.
Start-up can be delayed by a time period equal to the value of the USER
HG
parameter.
In Direct expansion units, the control commands the compressor to start so that the starting and stopping cycles are
not too close. Compressor start-up can be delayed with respect to pressure of the ON/OFF key (also see parameter
FACTORY
c7
).
The unit’s current status is stored in the memory; when power is restored, the unit returns to its status before power
failure, and restarts if it had been running.
GLb
G
ENERAL INFORMATION
Minimum
Maximum
Measurement
unit
Default
HG
Delayed start up. During this phase all unit components remain off.
0
300
sec
0
Com
C
OMPRESSOR
Minimum
Maximum
Measurement
unit
Default
C7
Compressor start-up delayed by start-up of fan.
0
300
sec
60
The stop of the unit’s fan is delayed with respect to pressure of the ON/OFF push-button by a time period equal to
FACTORY parameter
Fd
(default = 10 seconds). While the unit is OFF, the
symbol flashes on the display.
Fan
FANS
Minimum
Maximum
Measurement
unit
Default
Fd
Fan switch-off delay (FACTORY).
0
900
sec
10
Automatic MODE
: the control is configured so that the unit is started and stopped as follows:
1. a remote ON/OFF contact (the symbol “ ” appears on the display);
2. a supervision system (possible only in units equipped with a
serial circuit
);
3. programmable hour bands (only in units equipped with a
clock circuit
).
