Lux Products TX500U Installation And Operating Instructions Manual page 13

5, 6 WIRES
Factory RH-RC Jumper Wire REMOVED
O B G
AIR
FAN
CONDITIONER
NOTE: THE BLACK TERMINAL LETTERS ARE TYPICAL, GRAY TERMINAL LETTERS ARE BRAND SPECIFIC
1-STAGE HEATING AND 1-STAGE COOLING
WITH TWO SEPARATE 24V TRANSFORMERS
Y RC RH
G Y RC
F Y1 R
6 V
SYSTEM COMMON
COOL 24V
TRANSFORMER
W1 A W2
RH W
R W1
V 4
HEAT 24V
HEATER
TRANSFORMER
#6
C
C
X
B*
O
P
T
I
O
N
A
L