FIGURE 25A

ERV “MANUAL MODE” JUMPER PIN ON “M” TERMINAL

 

 

To adjust the airflow ventilation rate (NO CO2

 

FLOW INDEX (Light

CONTROL/NON-MODULATING) , determine the "FLOW

ERV CFM

Blink Code)

INDEX" needed for the intake and exhaust blowers for

 

 

450

100

the CFM you require.

 

 

 

 

425

89

1.> Locate two 0-10Vdc Motor Control Boards in control panel

400

83

 

375

76

2.> On intake Motor Control Board, observing "GREEN STATUS

350

59

LIGHT", turn manual adjust potentiometer (with a small phillips-head

screwdriver) "CCW" to increase "FLOW INDEX" or CW to reduce

325

50

"FLOW INDEX" to match desired setting. (NOTE: After long pause,

the green status light will blink long-blinks for the "TEN COUNT" of

 

 

300

40

the "FLOW RATE INDEX", which then is immediately followed by

275

32

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".)

250

25

 

225

12

3.> On exhaust Motor Control Board, observing "GREEN STATUS

200

9

LIGHT", turn manual adjust potentiometer (with a small phillips-head

screwdriver) "CCW" to increase "FLOW INDEX" or CW to reduce

 

 

175

4

"FLOW INDEX" to match desired setting. (Same GREEN STATUS

150

1

LIGHT blink (refer to Step #5))

 

 

 

 

FIGURE 25B

ERV “MODULATING MODE” JUMPER PIN ON “P” TERMINAL

 

Vdc Signal

 

CFM

from CO2

 

 

Control

 

450

10

 

 

 

 

425

8.87

 

400

8.31

 

375

7.61

After determining the air volume

rates needed for the intended

350

6.73

application (Maximum &

325

5.91

Minimum), the table

immediately to the left will allow

300

5.15

for you to program your CO2

275

4.58

control output voltages in

 

250

4.06

correlation to the CO2 levels you

wish to control when Bard Part #

225

2.91

8403-067 CO2 Control is applied.

200

2.57

 

175

2.24

 

150

1.74

 

 

 

 

125

0.96

 

100

0.77

 

 

 

 

Manual

2100-549G

Page

43 of 59

Page 43
Image 43
Bard I60H1, I42H1D, I36H1D, I30H1 ERV Manual Mode Jumper PIN on M Terminal, ERV Modulating Mode Jumper PIN on P Terminal