Operating Instructions

Application 2500: VAV Cooling Only
Siemens Building Technologies, Inc. 3-11
Table 3-2. Point Database for Application 2500.
Point
Number
Descriptor Factory
Default
(SI Units)
Eng.
Units
(SI Units)
Slope
(SI Units)
Intercept
(SI Units)
On Text Off Text
{35} AIR VOLUME 0
(0.0)
CFM
(LPS)
4
(1.8876)
0 – –
36 FLOW COEFF 1.0 – 0.01 0.0 – –
{40} AI 4 74.0
(23.495556)
DEG F
(DEG C)
0.5
(0.28)
37.5
(3.055556)
– –
{41} DO 1 OFF – – – ON OFF
{42} DO 2 OFF – – – ON OFF
{43} DO 3 OFF – – – ON OFF
{44} DO 4 OFF – – – ON OFF
{48} DMPR COMD 0.0 PCT 0.4 0.0 – –
{49} DMPR POS 0.0 PCT 0.4 0.0 – –
51 MTR1 TIMING 95 SEC 1 0 – –
{52} MTR2 COMD 0.0 PCT 0.4 0.0 – –
{53} MTR2 POS 0.0 PCT 0.4 0.0 – –
55 MTR2 TIMING 130 SEC 1 0 – –
56 DMPR ROT
ANG
90 – 1 0 – –
58 MTR SETUP 1 – 1 0 – –
59 DO DIR. REV 0 – 1 0 – –
63 CLG P GAIN 20.0 (36.0) – 0.25 (0.45) 0.0 – –
64 CLG I GAIN 0.01
(0.018)
– 0.001
(0.0018)
0.0 – –
65 CLG D GAIN 0 (0.0) – 2 (3.6) 0 – –
66 CLG BIAS 0.0 PCT 0.4 0.0 – –
71 FLOW P GAIN 0.0 – 0.05 0.0 – –
72 FLOW I GAIN 0.01 – 0.001 0.0 – –
73 FLOW D GAIN 0 – 2 0 – –
74 FLOW BIAS 50.0 PCT 0.4 0.0 – –
{75} FLOW 0.0 PCT 0.25 0.0 – –
{76} CTL FLOW MIN 220
(103.818)
CFM
(LPS)
4
(1.8876)
0 – –
1. Points not listed are not used in this application
2. A single value in a column means that the value is the same in English units and in SI units.
3. Point numbers that appear in brackets { } may be unbundled at the field panel.
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