Wiring Terminal Designations; Power Options; Conventional Terminals; Heat Pump Terminals - Honeywell FocusPRO 5000 Series Installation Instructions Manual

Power options

Keep wires in this
shaded area

Wiring terminal designations

Shaded areas below apply only to

Conventional Terminals:

Rc 24VAC power from cooling
transformer
R 24VAC power from heating
transformer
W Heat relay (stage 1)
W2 Heat relay (stage 2)
Y Compressor contactor (stage 1)
Y2 Compressor contactor (stage 2)
G Fan relay
C 24VAC common. For 2 transformer
systems, use common wire from
cooling transformer.
TH5110D
TH5220D
Y2 W2 G W
TH5320U
Y2 W2 G
Remove factory-
installed jumper
only for two-
transformer
systems.
Rc
R
Y
C
W
G
C Y R Rc
W C Y R Rc
Connect
(optional if batteries are installed).
TH5320U/TH5220D

Heat Pump Terminals:

Rc 24VAC power from cooling
transformer
R 24VAC power from heating
transformer
O/B Changeover valve
Y Compressor contactor
Y2 Compressor contactor (stage 2)
-TH5320U
G Fan relay
Aux/E Auxiliary/Emergency heat relay
L Sends output when set to Em. Heat
C 24VAC common
TH5110D
TH5220D
L
TH5320U
L
2
Insert batteries for primary
or backup power.
for primary AC power
C
or as otherwise noted.
only
Rc
R
Y
C
O/B
G
O
Aux
G C Y R
B /
E
O
Y2 Aux G C Y
B /
E
MCR29371A
M29370
Rc
R Rc