Delta P Plus Control
4
Parameters Description
Setting
Range
Factory
Default
Units
Function
ALL
ALL - Combines differential pressure (Delta
P) based cleaning with downtime cleaning
ON/OFF selectable from keypad.
P 6
Mode Select
DTC
ALL
- -
DTC - Filters downtime cleaned only, not
based on filter Delta P.
DFF
DFF - Filter cleaning based on Delta P with
downtime cleaning not available.
P 7
Display Units
0 = in. w.g.
1 = daPa
0 - 1
0
- -
Selects units of measure for the
digital display.
P 8
Downtime Start
Relay
30 - 99
30
Seconds
Adjustable time lag between the pressure
dropping below the value set in parameter
P 11 and the start of downtime cleaning.
P 9
Downtime
Pressure Enable
Relay
30 - 99
30
Seconds
Adjustable time required to be above the
value set as the High Set Point (Hi) before
the downtime feature is enabled.
P 10
Downtime
Cleaning Time
1 - 999
10
Minutes
The amount of time the downtime cleaning
will continue once the time set in P 9
expires.*
P 11
Downtime Start
Pressure
0 - 9.6 (245) 0.3 (13)
In. Water
(daPa)
The falling pressure that triggers the
downtime cleaning sequence. **
P 12
Pressure Sensor
Input Filtering
0 - 2
1
- -
Sets the time used for Delta P value
averaging (0 = 250 ms, 1 = 2.5 sec, 2 = 10
sec).
P 13
Reset to Factory
Defaults
0 - 1
0
- -
0 = No Reset
1 = Reset
P 14
Zero Offset
0 - 1
0
- -
0 = No Operations
1 = Offset and Displayed Zero
P 15
Software Version
- -
- -
- -
P 16
Password
- -
- -
- -
Factory password, no user adjustable
items in subsequent parameters.
* If the downtime cleaning sequence is in progress and the pressure drop indicates a fan restart, the cleaning sequence will end.
** If P 11 is set as equal to or greater than the Lo value, the Lo value will automatically increase 0.2” above the P 11 value.
Summary of Contents for Delta P Plus
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