Control Parameters - Lennox Prodigy 2.0 Application Manual

15. Control Parameters

See Appendix A.
16. Diagnostics
See Appendix B.
17. Networking the Controllers
A network control panel and Network Control Panel PC software can be used to schedule building operation for any M2 or
M3 Unit Controller on the same daisy-chained L Connection
The network control panel is an L Connection direct digital controller used on units which are not equipped with an M3 Unit
Controller. The Building Controller (BC) is used to control building functions such as lights and signs. Use L connection
specific network cable and daisy chain as shown in figure 26.
Up to 31 controllers can be daisy chained on a single L Connection network. Any combination of M1, M2, M3, NTC, and BC
controller can be used (see figure 25).
Up to 31
Controllers
NON M3
NTC
BASED HVAC
SYS BUS TERMINAL
BLOCK ON LENNOX
CONTROLLERS IMC
(M1-1 TO M1-6 L
SERIES)
- G +
SHIELD
CONNECT + TERMINAL OF NCP TO + TERMINALS ON ALL CONTROLLERS.
1
CONNECT - TERMINAL OF NCP TO - TERMINALS ON ALL CONTROLLERS.
SHIELD
2
3 DO NOT CONNECT THE CABLE SHIELD TO THE "G" TERMINAL ON M1-6 AND OLDER
Figure 26. L Connection
Signs
Fans
BC
Lights
Figure 25. L Connection Network
SYS BUS TERMINAL
BLOCK ON LENNOX
CONTROLLERS IMC (M1-7,
M1-8, NTC, BC AND ZONE
CONTROLLERS)
- S +
SHIELD
®
Network Daisy-Chain Communication Wiring
®
network.
M1
M3 M2
S-BUS TERMINAL
BLOCK ON LENNOX
PRODIGY M2 OR M3
CONTROLLER
ENERGENCE
- S +
SERIES
Page 72
PC CONVERTER
ETHERNET
CONVERTER
Network Manager
Network Control
Panel
M1
CONTINUE WIRING TYP.
TO LAST CONTROLLER
ON NETWORK
SHIELD
Cable type - twisted pair
with shield, 22 awg minim­
um, Belden #88761 or
#8761 (Lennox 27M19,
94L63, 68M35).
PC
LAN