Navien NaviLink, User Manual, Page: 17 / 44

17
English
NPE/NHB Cascade System
A
B
C
CH1 CH2 CH3
NU LTI SW
FLOW SW EXIT INPUT
TEMPER
ATURE SENSOR
LP SW
OUT DOOR
DH W T
ANK
0~10V IN
0~10V OUT
(+)
(-)
(+)
(-)
SYSTEM SUPPLY
SYSTEM RETURN
R W
T/S ZONE 1 T/S ZONE 2 T/S ZONE 3
C R W C R W C
R
W
C
T/
S D HW
3.LWCO
2.AC24VL
1.AC24VN
NFB(commercial) Cascade System
A
C
CH1 CH2 CH3
CNK1
B
Connecting to a cascade system
You can remotely control and monitor cascade systems by connecting
them to NaviLink communication channels (CH1–CH3). To connect the
NaviLink to a cascade system, a Navien Ready-Link cable (optional) and
NaviLink cable should be connected.
1
Connect the RS-485 connector of the NaviLink cable to a
communication channel port.
2
Connect the 5-pin connector of the NaviLink cable to connector A of
the Navien Ready-Link cable.
3
Connect the connector B of the Navien Ready-Link cable to the J6
port on the right side of the main unit panel or to the CNK1 port of
the controller.
4
Connect connector C of the Navien Ready-Link cable to another
Navien Ready-Link cable connected to a sub unit.