Lennox PRODIGY2.0 - Page 138

138
Parameter 358
Algorithm Y for Input Sources 7-15:
0- Hysteresis loop
• On when input > = set point
1
• Off when input < set point
1
- dead-band percentage (P 363)
1- Window
• On when input is in range > = setpoint
1
and < = set point
1
+ dead-band percentage (P 363)
2- Delayed-on
 Timer (P 364 seconds) is started when input is > set point (output
remains off)
 Timer continues to run until: Input is < set point – dead_band (P
363) (delayed – on aborted)
 Or timer expires (output goes on)
 Output continues on until input < set point – dead-band.
3- Delayed-off
 On when input is > set point
1
.
 Off when input is < set point
1
– dead-band percentage (P 363) for >
P364 seconds.
 Output goes on when input > setpoint
 Timer is started when input is < set point - deadband
 Timer continues to run until: Input is > set point (output continues
on, delayed–off aborted) or timer expires (output goes off).
Inversion Z:
0 - Output not inverted.
1 - Output inverted
NOTE: P indicates parameter.
1
Indicates that the set point could be parameters 359, 360, 361 or
362.
setpoint
1
+
P 363
OFFOFF
setpoint
1
ON
Windowed
Delayed-On
Delay
P364
Delayed-Off
OFF
ON
Hysteresis Loop
setpoint
1
setpoint
1
P 363
OFF
ON
setpoint
1
setpoint
1
P 363
Delay
P364
OFF
ON
setpoint
1
setpoint
1
P 363
Figure 37. Algorithm Y for Input Sources 7 - 15 (Parameter 358)