Lennox Harmony II Zone Control System

Page 26
Option 2 − Harmony Zone Control Center Field Wiring in Economizer
Applications with CB31MV Blower Coil Unit and Lennox Heat Pump
Figure 27
O
BLOWER COIL UNIT
J3 P4
13
2
1
12
3
6
7
GRAY
BLUE
PINK
RED
Y1
Y2
YELLOW
BLK
K20−2
K18−2
*K18
*K18 RELAY FIELD−PROVIDED
A
B
3
9
6
1
7
4
3
9
6
HP3
HP2
HP1
G21V
or GAS
NOTE - Remove Jumper
R to W2 & W3