The message “hdP” appears when the dew point temperature is too high.
7 . 5
P r o g r a m m i n g a n d u s e o f t h e k e y p a d
7.5.1
Unit ON-OFF
The unit can be switched on and off from the keypad by pressing key
for 1 second; OFF status (stand-by) is confirmed
by a display message.
In addition, the unit can also be switched on and off by a digital input, if configured. If the unit is switched on from a digital
input it can be switched off from the keypad.
Digital input OFF status is shown on the display by means of a lit decimal point “OF.F”. When the unit is in “OF.F” status
the ON-OFF key is inhibited. In the transition to ON from a digital input, the unit returns to the prior “OF.F” status unless the
value of “controller On-off command” is changed from the supervision system.
7.5.2
Condensate discharge key
The yellow condensate discharge key provides the facility to activate (if condensate discharge is set as timer controlled) the
condensate discharge valve in manual mode.
In addition, if parameter H1 is set to 3, discharge time (H4) can be reprogrammed, i.e. the discharge time becomes equal to
the time for which the yellow key is pressed; in this case the flashing red discharge icon is displayed.
7.5.3
Controller programming
The instrument has 2 programming levels; the first (U= USER) concerns parameters that can normally be changed by the
user. The second level (S= SERVICE) concerns the SERVICE parameters, which are password protected.
To access the “S” parameters hold down the
key for more than 2 seconds and less than 5 seconds, then enter the
required password (a flashing “0” will be displayed). All the parameters are visible and editable in this menu, including the
“U” parameters. To quit parameters display mode and save your changes, hold down
for 5 seconds. If no keys are
pressed for more than 60 seconds the system will automatically quit parameters programming mode. The changes already
made are saved automatically.
1. Access by pressing
for 5 s.
2. Select the parameter with
,
.
3. Press
to display the value.
4. Edit the value with
,
.
5. Press
to save the new value and go to the next
parameter.
press 5 sec. for level “U”
press 2 sec. for “S” level password
