York EZ Zone User Manual

EZ Zone/Meridian
Upgrade 21
036-21423-001 Rev. A (0602)
Sensor Connections
Figure 8: New Meridian Zone Manager Sensor Wiring
ANALOG
INPUTS
+V
+V
1
2
3
4
5
6
7
8
G
G
PRESSURE
SENSOR
+5V
SIG
GND
TB12
Static
Pick-up
Static
Pressure
Sensor
Splice As
Required
LO HI
Red
Blk
Grn
Supply Air
Sensor
To Bypass
Actuator Feedback
+
+
+
+
R9
R10
C4
R8
AUX1
ANALOG
OUTPUTS
A2
G
TB5
TB4
TB3
A1
N.O.
CONTACTS
EXHAUST
GND
GND
AUX3
AUX2
D3
D4
D5
D6
D8
D2
PRESSURE
SENSOR JACK
+5V
R7
INPUTS
OAT
RAT
+12V
SAT
ANALOG
GND
SIG
TB1
PJ1
Return Air Temp.
Sensor
Supply Air Temp.
Sensor
Outdoor Air Temp.
Sensor
Static
Pick-up
Static
Pressure
Sensor
Splice As
Required
LO HI
Figure 7: Existing EZ Zone Master Controller Sensor Wiring
The EZ Zone Master Controller sensor connec-
tions are located on the right side of the board.
Only a supply air temperature sensor and the
bypass actuator feedback are connected here.
The Meridian Zone Manager includes terminals
for connecting the following sensors:
• Supply Air Temperature
• Return Air Temperature
• Outside Air Temperature
The terminals are marked SAT, RAT, and OAT
for ease of wiring. Auxiliary input terminals
AUX1, AUX2 and AUX3 are used for Econo-
mizer Disable, Dirty Filter Alarm and Forced
Occupied Mode. Bypass damper feedback has
been relocated (see next page).

York EZ Zone Specifications

General

Brand	York
Model	EZ Zone
Category	Controller
Language	English