Bard I36H1 ERV Manual Mode Jumper PIN on M Terminal, ERV Modulating Mode Jumper PIN on P Terminal

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