Navien LCB700-21RS Installation & Operation Manual page 47

9.5.3 Connecting the 3 Port Diverter Valve
The boiler is designed to be connected to a 3 port diverter valve. The valve cables are connected to the terminals 1 (L) and 2 (N) of the
CONM3 in the AC application part. It only operates when there is an operating signal from the cylinder stat or CH thermostat.
CH
(N.C)
9.5.4 Connecting the 3 Way Valve (Type C Contact)
The boiler is designed to be connected to a 3 way valve (Type C Contact). The valve cables are connected to the terminals DHW, CH and N
of the CONM2 in the AC application part. It only operates when there is an operating signal from the cylinder stat or CH thermostat.
DHW
N
CH
Application
Brown
Blue
DHW
(N.O)
Application
AC
Part
AC
Part
Connecting Electrical Supplies 47