Lux Products P621U Thermostat User Manual


 
NOTE: THE BLACK TERMINAL LETTERS ARE TYPICAL, GRAY TERMINAL LETTERS ARE BRAND SPECIFIC
O
XF
G
Y1
6
Y
B*
RC
V
R
W1 A W2O B CG Y RC RH
SINGLE-STAGE HEAT PUMP SYSTEM
WITH NO AUX OR EMERGENCY HEAT
#7
C
FAN
SYSTEM 24V
TRANSFORMER
SYSTEM COMMON
4, 5 WIRES
O
P
T
I
O
N
A
L
HEAT PUMP
REVERSING
VALVE
** Use “O” or “B”
Terminals, Never Both
CUSTOMER INSTALLED Y-W1 Jumper Wire
Factory RH-RC Jumper Wire Installed
15