USER INSTRUCTIONS
24
Temperature adjustment control algorithm
Use the
or
button key to modify the control algorithm for
heating
, cooling
, or both
(2P = two points
ON/OFF; PI = PWM proportional-integral; FAN = fan coil with speed
control ON/OFF) depending on the type of operation and the control
logic set on the previous screens. To confirm your choice and
move on to the next parameter, press the
button key within 30
seconds.
The screens that can be visualised will depend on the type of temperature adjustment control
algorithm enabled on 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 “setpoint -
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 setpoint value, the device deactivates the
heating system.
H
EATING
In cooling mode, when the measured temperature is higher than the “se
cond
” value,
the device activates the cooling system by sending the relative command to the actuator that
manages it; when the measured temperature reaches the fixed setpoint value, the device
deactivates the cooling system.
C
OOLING
To avoid continuous solenoid valve switchovers, after an OFF-ON-OFF sequence the next ON
command can only be sent after at least 2 minutes have elapsed.
T
T
setpoint
setpoint
heat
cond
Summary of Contents for Chorus GW 10 764H
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