Lux Products TX500U Installation And Operating Instructions Manual page 15

5, 6 WIRES
** Use "O" or "B"
Terminals, Never Both
O B
O
REVERSING
FAN
VALVE
NOTE: THE BLACK TERMINAL LETTERS ARE TYPICAL, GRAY TERMINAL LETTERS ARE BRAND SPECIFIC
2-HEAT / 1-COOL, HEAT PUMP SYSTEM
WITH AUX AND EMERGENCY HEAT
Factory RH-RC Jumper Wire Installed
G Y RC
G Y R
F Y1 RC
6 V
SYSTEM COMMON
SYSTEM 24V
TRANSFORMER
CUSTOMER INSTALLED Y-W1 Jumper Wire
RH W1 A
HEAT PUMP
#8
W2 C
W2 C
W3 X
W B*
O
P
T
I
O
N
A
L
AUX / EMERG.
HEAT