Manual 2100-760
Page
13 of 17
FIGURE 8
CRV Control Board Wiring
3
1
2
5
4
6
UNIT LOW VOLTAGE
BR
OW
N/
W
HI
TE
TERMINAL STRIP
OPTIONAL
YE
LL
OW
/W
HI
TE
OPTIONAL
PUR
PLE
OPTIONAL
WHEN
INDOOR FAN IS ON
MODULATING CO2 CONTROL
*A -
RE
D/
W
HI
TE
CONTROL
FDBK
24V
COM
KEY
ON/OFF CO2 CONTROL
*B -
*C
B
E
O1
4056-261 A
C
Y1
Y
*D
W1
R G
*C - SINGLE-STAGE UNIT
*D -
FIELD JUMPER FOR
CONSTANT VENTILATION
BLACK/WHITE
BROWN/WHITE
ORANGE
BROWN/WHITE
RELAY
BLACK/WHITE
56
30
0
CRV-CONTROL BOARD
60
-
Damper Motor
RED
BLACK
BROWN
*A
CO2 Sensor
90
*A
OPTIONAL CO2 CONTROL
*B
55
+
REQUIRED FIELD WIRING FOR
CO2 VENTILATION OPERATION.
IN *B CONFIGURATION FOR MODULATING
PANEL UNLESS A CO2 SENSOR IS INSTALLED
GRAY WIRE IS DEAD-ENDED IN CONTROL
59
56
57
*UNUSED-
TAPE OFF*
WHITE
57
L
W2
GR
AY
NC
NO
1
CO
M
49
MOVE THIS BROWN/WHITE WIRE
FROM COM TO NC IF JUMPER IS USED
BETWEEN 01 AND G.
