Temperature adjustment control algorithm
Use the
or
button key to change the control algorithm for
heating
, air conditioning
or both
(2P = two
points On/Off; PI = PWM proportional-integral; FAN = fan coil with
speed control On/Off) based on the type of operation and the
control logic set in the previous screens. To confirm your choice
and move on to the next parameter, press the
button key within
30 seconds.
The displayed screens depend on the type of control algorithm of the temperature adjustment
system that was enabled in the previous screen:
•
two points ON-OFF
•
PWM proportional-integral
•
fan coil with ON-OFF speed control
TWO POINTS ON-OFF
The operating principle manages the temperature adjustment system with two thresholds (hysteresis
cycle), used to distinguish the ON or OFF status of the system.
In heating mode, when the detected temperature is lower than the “set-point -
heat
” value, the
device activates the heating system by sending the relative command to the actuator that manages
it; when the detected temperature reaches the fixed set-point value, the device deactivates the
heating system.
H
EATING
In air-conditioning mode, when the detected temperature is higher than the “set-point +
cond
” value, the device activates the air-conditioning system by sending the relative command
to the actuator that manages it; when the detected temperature reaches the fixed set-point value,
the device deactivates the air-conditioning system.
A
IR
-
CONDITIONING
To avoid the continuous switchovers of the solenoid valve, after an OFF-ON-OFF sequence, the
next ON command can only be sent after at least 2 minutes have elapsed.
USER INSTRUCTIONS
E
N
G
L
I
S
H
21
T
T
set point
set point
heat
cond
Summary of Contents for Chorus GW 10 764
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