Lux Products 52126 User Manual
10
X
B*
C
RH
V
R
W1
4
W
A
W1
A
W2
O
B
C
G
Y
RC
RH
HOT WATER HEATING ONLY
(WITH A 3-WIRE ZONE VALVE)
Factory RH-RC Jumper Wire Installed
#2
3, 4 WIRES
NOTE: THE BLACK TERMINAL LETTERS ARE TYPICAL, GRAY TERMINAL LETTERS ARE BRAND SPECIFIC
SYSTEM 24V
TRANSFORMER
SYSTEM COMMON
OPEN = Heat On
CLOSE = Heat Off
CLOSE = Heat Off
3-WIRE ZONE VALVE
OPEN
CLOSE
O
P
P
T
I
O
N
A
N
A
L