Figure 28A Erv Manual Mode "M" Terminal; Figure 28B Erv Mod. Mode "P" Terminal; Manual 2100-597G - Bard I30A1DA Installation Instructions Manual

ERV "MANUAL MODE" JUMPER PIN ON "M" Terminal
ERV CFM
450
425
400
375
350
325
300
275
250
225
200
175
150

Manual 2100-597G

Page 52 of 68
FIGURE 28A
ERV "Manual Mode" Jumper Pin on "M" Terminal
To adjust the airflow ventilation rate (NO CO
FLOW INDEX (Light
CONTROL/NON-MODULATING) , determine the "FLOW
Blink Code)
INDEX" needed for the intake and exhaust blowers for
100
89
1.> Locate two 0-10Vdc Motor Control Boards in control panel
83
76
2.> On intake Motor Control Board, observing "GREEN STATUS
LIGHT", turn manual adjust potentiometer (with a small phillips-head
59
screwdriver) "CCW" to increase "FLOW INDEX" or CW to reduce
"FLOW INDEX" to match desired setting. (NOTE: After long pause,
50
the green status light will blink long-blinks for the "TEN COUNT" of
the "FLOW RATE INDEX", which then is immediately followed by
40
fast blinks which indicate the second digit. For example, a Flow
32
Index of 23 would be two long blinks, followed by three fast
25
12
3.> On exhaust Motor Control Board, observing "GREEN STATUS
LIGHT", turn manual adjust potentiometer (with a small phillips-head
9
screwdriver) "CCW" to increase "FLOW INDEX" or CW to reduce
"FLOW INDEX" to match desired setting. (Same GREEN STATUS
4
1
FIGURE 28B
ERV "MODULATING MODE" JUMPER PIN ON "P" TERMINAL
ERV " Modulating Mode" Jumper Pin on "P" Terminal
Vdc Signal
CFM from CO2
Control
10
450
425 8.87
400 8.31
After determining the air volume
375 7.61
rates needed for the intended
350 6.73
325 5.91
immediately to the left will allow
300 5.15
the programming of CO
output voltages in correlation to
275 4.58
the CO
250 4.06
when Bard Part # 8403-067 CO
225 2.91
200 2.57
175 2.24
1.74
150
125 0.96
0.77
100
the CFM required.
blinks of the "GREEN STATUS LIGHT".)
LIGHT blink (refer to Step #2))
application (Maximum &
Minimum), the table
control
2
levels to be controlled
2
2
Control is applied.
ERV "MODULATIN
2
CFM
450
425
400
375
350
325
300
275
250
225
200
175
150
125
100
Vdc Signal
from CO2
Control
10
8.87
8.31
7.61
6.73
5.91
5.15
4.58
4.06
2.91
2.57
2.24
1.74
0.96
0.77