York Meridian User Manual

EZ Zone/Meridian
Upgrade 23
036-21423-001 Rev. A (0602)
Honeywell Economizer Actuators
TR
T1
P
P1
24VAC
24VAC
Zone Manager
Wiring 2ZAI004700266 Actuator Interface Module Kit To Zone Manager (Basic & Plus Systems)
Installing Interface Module To Honeywell M7415 Or 7405 Actuator
Q769C1007 Interface Module
Warning:
!
An Isolation Transformer
Must Be Used For Connection To
Actuator Or Serious Damage Will
Result
+
TR1
T
-
A1
G
TB2
A2
G
OUTPUTS
ANALOG
A1
N.O.
CONTACTS
EXHAUST
AUX3
GND
GND
AUX2
AUX1
ANALOG
SAT
OAT
RAT
INPUTS
+12V
Honeywell Series M7415
Or M7405 Actuator
24 VAC
24 VAC
T1
T1
TR
TR
T
T
P
P1
TR1
TR1
SENSOR
SENSOR
MIN
POSN
M7415A1014
025-26250
M7415A1014
025-26250
24 VAC - Isolation Transformer
Honeywell M7415 Actuator
Without Interface Module
Honeywell M7415
Actuator With Q769C1007
Interface Module Installed
Place Interface Module On
Terminals P1 and P
Figure 11: Honeywell Economizer Actuators Wiring Information
When the HVAC units that are being upgraded to
the Meridian system are equipped with either the
Honeywell M7415 or M7405 economizer actua-
tors, an interface module and a isolation transformer
are required in order to connect and use the econo-
mizer outputs on the Meridian system. The inter-
face module converts the Honeywell actuator from
0-5VDC operation to 0-10VDC operation. An iso-
lation transformer is also required for this installa-
tion to prevent voltage feedback to the control sys-
tem. The 2ZAI004700266 Actuator Interface Mod-
ule kit is available from York. This kit includes both
the Interface Module and a 24VAC Isolation Trans-
former.
Warning: Both the interface module and a 24VAC
isolation transformer must be installed as shown
below when connecting to the Honeywell M7415
or M7405 actuator. Failure to install these com-
ponents as shown can result in serious damage to
the Meridian controller board.

York Meridian Specifications

General

Brand	York
Model	Meridian
Category	Control Systems
Language	English