Manual 2100-549Q
Page
43 of 69
FIGURE 25A
CRV “Manual Mode” Jumper Pin on “M” Terminal
FIGURE 25B
CRV “Modulating Mode” Jumper Pin on “P” Terminal
CFM
FLOW INDEX
(Light Blink Code)
525
100
500
92
475
85
450
79
425
72
400
66
375
59
350
53
325
46
300
40
275
33
250
27
225
20
200
14
175
7
150
1
To adjust the airflow ventilation rate (NO CO
2
CONTROL/NON-
MODULATING), determine the "FLOW INDEX" needed for the intake
and exhaust blowers for the required CFM. Use a small phillips-head
screwdriver to make adjustments.
1. Locate two (2) 0-10Vdc motor control boards in control panel.
2. On
intake
motor control board, observing "GREEN STATUS LIGHT",
turn manual adjust potentiometer counterclockwise to increase
"FLOW INDEX" or clockwise to reduce "FLOW INDEX" to match
desired setting. (NOTE: After long pause, the green status light will
blink long-blinks for the "TEN COUNT" of the "FLOW RATE INDEX",
which then is immediately followed by fast blinks which indicate
the second digit. For example, a Flow Index of 23 would be two long
blinks, followed by 3 fast blinks of the green status light.)
3. On
exhaust
motor control board, observing "GREEN STATUS LIGHT",
turn manual adjust potentiometer counterclockwise to increase
"FLOW INDEX" or clockwise to reduce "FLOW INDEX" to match
desired setting. (See NOTE in Step 2.)
CFM
Vdc Signal from
CO
2
Control
525
10
500
9.4
475
8.8
450
8.2
425
7.6
400
7
375
6.4
350
5.8
325
5.2
300
4.6
275
4
250
3.4
225
2.8
200
2.2
175
1.6
150
1
After determining the air volume rates needed for the intended
application (maximum and minimum), use this table to program CO
2
control output voltages in correlation to the CO
2
levels needed when Bard
CO
2
Control 8403-067 is applied.