S Plan Applications - Navien NCB-20LHWE Installation & Operation Manual

9.3 S Plan Applications

9.3.1 S Plan with 230 V Two Channel Device
Junction box
CH HW HW
CH
ON
ON OFF
OFF
Programmer
Use a junction box to make wiring connections. The junction box is not included in the product.
Note
CAUTION
Before connecting devices to the terminals of the terminal blocks 1 and 2, refer to 8. Connecting Electrical Supplies and ensure that the
Room Stat
Cylinder Stat
1 2 3 4 5
L
N
230 VAC
Room Stat
L Call
Call
6 7 8 9 10
Gray
Motor
NO
Brown
M
NC
Blue
COM
Green/Yellow
Orange
230 VAC 3 port diverter
valve
Output
L E N COM DHW CH
(N) (L) (L)
Gray
Motor
NO NC
Brown
M
Blue
COM
Green/Yellow
Wiring Examples for Different Applications
Cylinder Temp.
Sensor
Orange
43