Lennox 11U61 Setup And Installation Manual page 28

iComfort Wi‐Fi
Outdoor Unit
RSBus
Minimum wire size is 18
gauge
BEST PRACTICES! Keep all communication wiring as far away from house electric­
al wiring and large electrical appliances as possible (15' [5m] recommended).
Figure 21. Thermostat Wire Termination in Communicating System (Electrical Noise)
507428-01
Note: iComfort Wi‐Fi
®
Single wire to
terminal C
Unused wires
®
Flex thermostat does not require shielded cable wiring.
®
iComfort Wi‐Fi
Equipment Interface
Module
Maximum total length of all connections on the RSBus is limit­
ed to 1500 ft. (450 m). Max. length between components is
300 ft. (90 m).
28
iComfort Wi‐Fi
Flex Thermostat
Single wire to
terminal C
Unused wires
®