EZ Zone/Meridian
22
Upgrade
036-21423-001 Rev. A (0602)
Figure 10: New Meridian Bypass Damper Wiring
ANALOG
INPUTS
+V
+V
1
2
3
4
5
6
7
8
G
G
PRESSURE
SENSOR
+5V
SIG
GND
TB12
OUT6
OUT7
BYPASS
OPEN
BYPASS
CLOSE
Feedback
Gnd
Open
Close
Actuator Wiring
Interface
24 VAC
V4
V3
REC
CLOSE
OPEN
K1
K2
NETWORK
SH
R
T
NE5090
FDBK
GND
OPEN
CLOSE
Feedback (Bk)
Ground (Wh)
Open (Yl)
Close (Gr)
Actuator Interface
Wiring
Figure 9: Existing EZ Zone Bypass Damper Wiring
The EZ Zone Master Con-
troller has two double pole
terminal blocks for the by-
pass actuator connections.
These terminal blocks must
be tied together by an exter-
nal jumper. In addition, the
feedback connection from the
actuator must be terminated
on the other side of the con-
troller .
The Meridian Zone Manager
wiring has been simplified.
There is only one terminal
block with connections
clearly marked for ease of
installation. The actuator
“feedback” connection is
now terminated at the same
location as all the connec-
tions. Jumpers are no longer
required since the commons
are tied together within the
circuit board.
Bypass Damper Connections
