Lennox FLEXAIR FAC Series - Control Terminal Connection

• 55 •
pLan
connection
Master/Slave
CUSTOMER CONNECTIONS
J1 J2
U1 U3 U2
GND
G
G0
J3
U4
+Vdc
U5
+5VR
GND
J4
U6
+Vdc
U7
+5VR
GND
J6
GND
Y3 Y1 Y2
J5
U8
+Vdc
U9
+5VR
GND
U10
J7
DI1 DI3 DI2 DI4
GND
J8
J25
DI7H DI7C
DI7 DI8
DI8H
J26
Y4
U11
Y5
GND
U12
GND
DI9
DI10
DI9C
J24
NO8 C8
J12
J28
C11 NO12 NO11 NO13 C11
21
J23
NO7 C7
J22
NO6 C6
J21
C2 V-IN
J20
Out5 C2
J19
Out4 C2
J18
Out3 C2
J17
Out2 C2
J16
NC1 C1 NO1
J27
NO9 NC9 C9 NO10 C10 NC10
J15
GND Tx/Rx + Tx/Rx -
J14
GND + -
J11
GND + -
J29
J10
BMS card
J9
GND + - Vout +
J13
WHITE BROWN
Bus
Bus
4
3
24V.E
24V.F
R2
GND
24V
GND
RX+
RX-
4770703R
LOCAL DISPLAY
MULTI UNITS
V+
GND
T-
T+
MAINTENANCE DISPLAY
1243
0123456
321 321
J14J15
24Vac
Application Guide /FLEXAIR-AGU-1505-E
10. ELECTRICAL DATA
10.2- CONTROL TERMINAL CONNECTION
Customer connections