24
SETTING AND ADJUSTMENT
Selecting the power supply of the fans
WARNING! Before establishing the electrical
connection, make sure that the power supply is
off. Also ensure that it is not possible to
reconnect the power during the operation.
WARNING! In the case of a unit with ducts, the
load loss from the exhaust duct must be less than
100 Pa.
To reach the head required by the system for conditioners
with fans carrying a CE marking, the input voltage percentage
can be adjusted from the user terminal (A).
To select the voltage percentage to be applied, carry out
the following procedures:
•
on the user terminal press the PRG button;
•
using the UP or DOWN key select SERVICE MENU
and confirm using the ENTER key;
•
enter the password (see the envelope attached to the
manual);
•
using the UP or DOWN key select HARDWARE
SETTING and confirm using the ENTER key;
•
using the UP or DOWN key select EVAPORATING FAN
and confirm using the ENTER key;
•
set the amount and confirm using the ENTER key.
A2
A4
A5
A6
A7
A1
A3
UNITS WITH CENTRIFUGAL FANS
Nominal fan regulation (to have the nominal airflow with ESP=20Pa)
In the following table the maximum pressure available
(expressed in Pa) for each voltage level of the transformer is
indicated. The values are given for the maximum air flow
(expressed in m3/h).
UNIT
WITHOUT
ELECTRICAL
HEATERS
UNIT
WITH
ELECTRICAL
HEATERS
Nominal
speed
@20Pa
Minimum
speed
@20Pa
Nominal
speed
@20Pa
Minimum
speed
@20Pa
Model
EU4
Eu4
+Post
EU4
Eu4
+Post
EU4
Eu4
+Post
EU4
Eu4
+Post
[%]
[%]
[%]
[%]
[%]
[%]
[%]
[%]
SDAC
Ͳ
SDWC
151
75
75
48
48
75
75
48
48
251
82
82
48
48
83
83
48
48
331
69
69
46
46
70
70
50
50
351
80
80
46
46
80
80
50
50
501
100
100
62
62
100
100
65
65
601
SUAC
Ͳ
SUWC
151
75
75
48
48
75
75
48
48
251
82
82
48
48
83
83
48
48
331
69
69
46
46
70
70
50
50
351
80
80
46
46
80
80
50
50
501
99
99
62
62
100
100
65
65
601
