Lux Products P621U operating instructions Heat / 1-COOL, Heat Pump System

5, 6 WIRES		2-HEAT / 1-COOL, HEAT PUMP SYSTEM
			WITH AUX AND EMERGENCY HEAT
** Use “O” or “B”
						CUSTOMER INSTALLED Y-W1 Jumper Wire
Terminals, Never Both		Factory RH-RC Jumper Wire Installed
O	B	G	Y	RC	RH		W1	A	W2	C

#8

O

16

REVERSING

VALVE

FAN

G

F

Y	R	W2	C
Y1	RC	W3	X
6	V	W	B*

SYSTEM COMMON

SYSTEM 24V	HEAT PUMP	AUX / EMERG.
TRANSFORMER		HEAT

O P T I O N A L

NOTE: THE BLACK TERMINAL LETTERS ARE TYPICAL, GRAY TERMINAL LETTERS ARE BRAND SPECIFIC