Electric circuit components (Fig. 3)
The electric control and monitoring panel are built into the unit. A door can be opened to access the following components from
the outside: the user interface terminal with
LCD
display and the main disconnector.
a. the main components are:
1:
Main disconnector
2:
Controller with
LCD
display
3:
Compressor contactor
4:
Wiring board with protective fuses
5:
Transformer to power the board and controller
6:
Mains filter
7:
Condenser starts comp starting condenser for
mod. 30-38
(only for models with single-phase power
supply)
8:
User terminal board
9:
Condenser fan
(1 for mod. 16-19-24-30 and 2 for mod. 38-42-50)
10:
Phase monitoring and sequence device
(only for
models with threephase power supply)
11:
Auxiliary contact (only for mod. 16-19-24)
b. The monitoring section includes:
-
Controller with
LCD
display
-
Functions associated with the digital outputs
-
Compressor control
-
Cycle reversing valve (
only for IP units
)
-
Electric antifreeze heater on plate-type heat exchanger
-
Water circulating pump control
-
General remote alarm
- Functions associated with the analog outputs:
-
Infinite fan regulation
- Functions associated with the analog inputs:
-
Water inlet and outlet temperature
-
Coil temperature
The main functions of the monitoring system are:
-
Water temperature regulation
-
Compressor operating hour count
(display protected by a
PASSWORD
to be used by the
assistance service only)
-
Compressor start-up settings
-
Parameter entry via the keyboard
- Functions associated with the digital inputs:
-
High and low pressure
-
Differential pressure switch on wet side
-
Remote ON/OFF command
-
Remote controlled S/W (
only for IP units
)
GENERAL SPECIFICATIONS
7
ENGLISH
ENGLISH
1
10
4
3
6
5
8
7
11
2
9
NON IN
VISTA
Fig.3
HIDDEN
FROM
VIEW
