Lennox Prodigy M2 Application Manual page 69

Control Parameter
No. Name Min.
B, C, D, & E BOXES
DO_Mode_
0.23 A133_(VAV 0
mode)
0
0
DO_SP_
0
0.24 A133_ 0
(VAV mode) 132
−.05
0
2
0
16
DO_DB_A133_ 2
0.25
1
(VAV mode)
64
0.01
0
Supply_Static-
30
0.26 Sensor_Low_
30
Alarm_Check
Control Value
Default Max.
Block 0 VAV, CAVB, & MSAV Parameters (continued)
0 127
127 255
5.0 10.0
996 2000
100 100
51 −31
0 0.5
2.5 5.0
13 255
.50 10.0
102 2000
13 100
8 162
416 8160
0.05 1.0
.25 5.0
40 101
40 101
17. Electronic Configure To Order (ECTO) Control Parameters
Units Description
A133 (w/DIP set to VAV) Digital Out Mode = X + 32*Y + 16*Z
Input source= X:
0− None. Output enables exhaust fan stage 2.
1− Compressor 1 duty cycle. (Compressor crankcase heater func-
tion.) On when OAT <= ECTO 0.24 and >= ECTO 0.25 seconds
have passed with compressor 1 off. Off when OAT > ECTO 0.24
+ 3 deg F (fixed deadband) or < ECTO 0.25 sec have passed
with compressor 1 off.
2− On when occupied.
3− On when blower on.
4− On when heating demand.
5− On when cooling demand.
6.− On when heating or cooling demand.
7− System RH (A55_P298_5 RH)
8− System IAQ. (A55_P298_3 IAQ)
9− System OAT (A55_P267_1/2 OAT)
10− AI1. (A133_P194−6).
11− AI2. (A133_P194−7).
12− AI3. (A133_P194−8).
13− AI4. (A133_P194−9).
14− AO1. (A133_P194−11).
15 AO2. (A133_P194−12).
Option
Algorithm Y for input sources 7−15:
0− Hysteresis loop
On when input >= ECTO 0.24
Off when input < ECTO 0.24−ECTO 0.25
1− Window
On when input is in range; >= ECTO 0.24
and <= ECTO 0.24 + ECTO 0.25
(Fixed 3−count hysteresis loop on rising
and falling edges of window.)
2− Delayed−on.
On when input is >= ECTO 0.24
for >= ECTO 0.25 seconds.
Off when input is < ECTO 0.24 − 3.
(Fixed 3−count hysteresis loop on edge.)
3− Delayed−off.
On when input is >= ECTO 0.24.
Off when input is < ECTO 0.24 − 3
for >= ECTO 0.25 seconds.
(Fixed 3−count hysteresis loop on edge.)
Inversion Z:
0 − Output not inverted.
1 − Output inverted.
Counts
R:Volts
I:ppm
P:% A133 (w/DIP set to VAV) digital output mode setpoint
Y:DegF
M:"w.c.
N:"w.c.
Counts
R:Volts
I:ppm
P:%
A133 (w/DIP set to VAV) digital output mode deadband or delay.
O:DegF
D:Sec.
L:"w.c.
N:"w.c.
Supply Static Pressure Sensor (A30) connected at (A133_P195_6)
Count (TB18_6) alarm threshold. Blower percent speed before checking
sensor after a 20 second delay. A value of 101 disables the low
P:%
threshold or open" alarm trap.
Page 69
ON
OFF
0.24
0.24−0.25
O
N
OFF
OFF
0.24 0.24+0.25
OFF
DELAY
0.24
DELAY
0.25
OFF
0.24
Graphs indicate output not
inverted. See figure 33.
table continued on next page
PRODIGYT M2 UNIT CONTROLLER
ON
0.25
ON