Wiring Diagram - Navien NHB H Series Installation And Operation Manual

12.2 Wiring Diagram

128 Appendixes
Ground
Igniter
CNA1
CNR1
CNO1
CON1
Burner
CNI1 CND1 CNJ1
CNK1
CNT1 CNT2 CNT3 CNT4
DHW
SUPPLY RETURN OUTDOOR
TANK
Main Gas Valve2
Main Gas Valve1
Water Pressure Sensor
Zone
AC24V
Valve1
Zone
AC24V
Valve2
LWCO
Zone
AC24V
Valve3
AC24V
Cascade Line(RS-485)
*T/S_4(DHW)
T/S INPUT
AC24V
T/S INPUT
*T/S_1
AC24V
T/S INPUT
AC24V *T/S_2
T/S INPUT
AC24V *T/S_3