Lennox 19V30 - Page 13

13
Unused wires
Single wire
to terminal “C”.
Indoor Unit Controller
PureAir S
Figure 12. Communicating Indoor Unit and PureAir S
Wire Jumper required between ON and RED terminals.
ACC1 is always low-stage for single- and two-stage
ventilators.
LOW
ON
RED
YEL
GRN
HI
COM
NO
NC
BLK
HRV/ERV
Terminal Block
COM
CLOSE
Fresh Air Damper
2-Wire Control
(Normally Open)
ACC1
ACC2
MAG-MOUNT
SMART HUB
ACC1
ACC2
MAG-MOUNT
SMART HUB
Wire jumper required between ACC 1 and R terminals.
-
COMMBUS
A B
+
-
COMMBUS
A B
+
Figure 13. iComfort S30 with Ventilation
(Fresh Air Damper, ERV and HRV)