Operating Instructions

Chapter 3 – Point Database
18
Siemens Industry, Inc. Owner's Manual 125-5094
Building Technologies 2015-11-04
Descriptor
Address
1
Application
Description
at the controller board.
VERT WIDTH2 66 2941, 2942 Defines the overall width of the vertical sash wired to sash 2
at the controller board.
VSASH HGHT1 67 2941, 2942
Defines the overall height of the vertical sash wired to sash 1
at the controller board.
VSASH HGHT2 68 2941, 2942
Defines the overall height of the vertical sash wired to sash 2
at the controller board.
TRACK HEIGHT 69 2941, 2942 Measurement, in inches (cm), of the vertical track in a multi-
vertical sash fume hood.
BYPASS HGHT 70 2941, 2942 The height of the bypass opening of the fume hood.
BYPASS OPEN 71 2941, 2942 The effective bypass area in percent.
FAIL AREA 72 2941, 2942 When a sash sensor fails, the controller controls to the face
area defined by this point.
EXTERNAL A 73 2941, 2942
When AI 3 is used to input an external face area, the value is
displayed here.
MAX EXT AREA 74 2941, 2942 Scaling for the external face area Analog Input (AI 3) point.
MIN EXTVOLTS 75 2941, 2942 Minimum voltage value for external face area input range
(typically 0.0V or 1.0V).
CAL EXH VLV 78 2942 YES or NO point used to calibrate EXH AO3 to the
associated flow rate.
STARTUP DI4 78 2940 Determines if DI4 is used to change the STARTUP MODE.
EXH VLV STAT 79 2942 PASS or FAIL point used to indicate if the last calibration
attempt passed.
EXH MAX 80 2941, 2942, 2900 Maximum flow setpoint allowed. EXH MAX will override the
FVEL STPT if the calculated FLOW STPT is greater than
EXH MAX.
EXH HI STPT 80 2940 The high flow setpoint used in EXH STPT.
EXH MIN 81 2941, 2942, 2900 Minimum flow setpoint allowed. EXH MIN will override the
FVEL STPT if the calculated FLOW STPT is less than EXH
MIN.
EXH LO STPT 81 2940 The low flow setpoint used in EXH STPT.
FVEL STPT 83 2941, 2942 The face velocity setpoint in feet per minute (m/s) that is
maintained by the Fume Hood Controller. Valid values: 0
through 225 ft/min (0-1.2954 m/s).
OCC FV SET 84 2941, 2942 The face velocity setpoint during occupied operation.
UNOC FV SET 85 2941, 2942 The face velocity setpoint during unoccupied operation.
OCC LOW FV 86 2941, 2942 (Optional) The low face velocity setpoint during occupied
operation.
OCC HIGH FV 87 2941, 2942 (Optional) The high face velocity setpoint during occupied
operation.
OCC DELAY 88 2941, 2942 This point delays the OCC.UNOCC function, a user defined
number of seconds, when the controller is in UNATTN mode.
EXH SIG AO2 89 2940, 2941, 2942 Indicates the exhaust flow setpoint. The output is 1 to 10
Vdc, which corresponds to 0 to AO2 RANGE.
AO2 89 2900 Spare analog output is a 9 to 10 Vdc output.