Cyberstat CY1201, User Manual, Page: 8 / 24

C
onve
ntional
H
ea
t/C
oo
l
8
Wiring option 3 for Conventional Heat and/or Cool system

Use external power supply if you do not have a C wire

Yellow and green wires are not required for a heat-only system

White wire is not required for a cool-only system
24 V AC adapter is
required if you do
not have a C wire.
If using an external
power supply, you
will have two wires
going to R terminal.
24 V AC hot
Heat
Cool
Fan
C R
O
/B/
W
1
Y
G
W2