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at the speed set until reaching the 18
°C of the room.
8. 1 3.
FAN SPEED ADJUSTMENT
To select the speed at which the fan
must function in the case of request
(both humidistat and Booster) in any
functioning mode, using the
keys it is possible to select the three
fan speeds.
REMEMBER IT IS IMPORTANT TO SE-
LECT THE SLOWEST SPEED FOR OP-
TIMUM DEHUMIDIFICATION.
8. 1 3. 1 . terminal probes calibration
The temperature and humidity probes
present on the terminal can be calibra-
ted with a constant value (in positive
and in negative) over the entire measu-
rement range. This value id 5°C for the
temperature and 10% RH for humidity.
To do this, the relative parameter must
be modified (see table above).
The humidity probe also has an internal
algorithm based on humidity, tempera-
ture and calibration value of the tempe-
rature. This algorithm is not active by
default. To activate it use the relative
parameter (184), as in the previous
table. Use this algorithm in the case in
which the direct compensation by me-
ans of parameter is not sufficient.
8. 1 4.
DEFAULT CONFIGURATIONS
The following inputs and outputs are
set For the AIR-CONDITIONING version.
Parameter
Description
Coil Water Tempera-
Ch 3 B3 probe
type
ture (WS)
Evaporator Tempera-
Ch 4 B4 probe
type
ture (SE)
Fan 1 speed control
Ch Q1 output
type
(FAN1)
Fan 2 speed control
Ch Q2 output
type
(FAN2)
Fan 3 speed control
Ch Q3 output
(FAN3)
type
Compressor Control
Ch TR1 output
(CP)
type
Ch Analogue
ON/OFF Remote
signal output
type
Alarm (0.. 1 0V)
0-10V Y1
16
8. 1 5.
ERROR SYMBOLS
The error signals are divided into "Com-
munication errors" and "Alarm signals".
8. 1 5. 1 . Communication errors
The communication errors detect com-
and
munication errors between the termi-
nal and control.
They are shown on the display by "Er:"
followed by the error code described
below.
• Er:24 no control detected
• Er:25 no response after the initial
transmission of the parameters
• Er:26 no response from the control
with valid alignment parameters
• Er:27 loss of network control
• Er:29 incorrect alignment between
controls and relative expansions,
both in number and address
• Er:30
loss
between terminal and control
In the presence of these errors (Er:24...
Er29), check the machine hardware
settings (DIP switch) and the correct
connection of the terminal power sup-
ply cables (CE+ and CE-) and re-start
the machine.
In the case of "Er:30" on exiting the
programming of one or more parame-
ters, after machine re-start these may
have to be reprogrammed.
After programming, first switch the
machine off, wait 20 seconds to allow
the settings to be saved in the perma-
nent memory inside the control.
8. 1 5.2. Alarm signal
The alarm signals detect errors on the
probes present (if set) and on the set-
tings of the machine itself.
They are displayed on the screen by "E"
followed by the number of the control
that detected the error and the error
code itself, as described below.
"Ex:yy" with x that varies from 0 to 7,
indicates that the error with code yy
has been detected on the control with
address x (selected using selector
switches 1, 2 and 3 of the DIP switch
on the same control).
Error codes (yy):
• 02: water coil temperature probe
breakdown
• 12: terminal room temperature
probe breakdown
Example: The "E0:06" signal indicates
that an error has occurred on the room
temperature probe on the control devi-
ce with address 0 (code 06).
In the presence of these errors, check
that the probes configured (manually
or default settings) are present, con-
nected correctly and functioning. The
error disappears on connection or
replacement of the probe (even with
machine on and running) or on re-pro-
gramming of the parameter relative to
the output (changing the type of probe
or resetting the parameter, indicating
the absence of the probe).
of
communication
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