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BACNet Flow CoNtroller
FILTER CALIBRATION
Via BACnet
The steps below require the BFC to be configured and set up on a BACnet front-end system.
For further information on BFC BACnet setup, see Networking & Setup section.
STEP 1: Ensure that BACnet point AV2 – Filter Runtime is being pulled in (see table below).
STEP 2: Write a value of 0 to AV2 – Filter Runtime. This will initiate a calibration cycle. The current unit pressure (AI5) will be
automatically be copied to the Filter Calibrated Pressure (AV5). This process takes approximately 2 minutes.
Note:
Filter loading can subsequently be monitored using BACnet point: AV1 – Filter Load (from 0% clean to 100% loaded).
Object
Name
AI5
Unit Pressure
AV1
Filter Load
AV2
Filter Runtime
AV3
Motor Runtime
AV4
Airflow
Filter Calibrated
AV5
Pressure
Filter Trip
AV6
Pressure
Filter Loading
AV7
Trip Point
Units
Default
Range
in. w.g.
Dynamic
Dynamic
%
0
0-100%
Hours
0
0-99999
Hours
0
0-99999
cfm
N/A
0-9999
in. w.g.
N/A
Dynamic
in. w.g.
0
Dynamic
Numeric
1.5
1-3
Description
Current differential pressure measured across the filter
Current percent of filter loading based on new, clean filter
pressure drop
Current number of hours on filter since last reset. Enter
value of zero after filter has been replaced and calibrated.
Current number of hours on motor since last reset
Current airflow
Unit pressure when filter was calibrated
Filter trip pressure
Set filter loading trip point
priceindustries.com | BACNet FLow CoNtroLLer - Manual
R/W
R
R
R/W
R
R
R
R
R/W
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