Smart Equipment™ Economizer Board; Se-Eco1001-0 Economizer Controller - York ZR Series Installation Manual

Smart Equipment™ economizer board
A
H
Figure 27: SE-ECO1001-0 economizer controller
The following tables describe the details of the economizer board. See Figure 27 for connection locations.
Smart Equipment™ economizer board - analog inputs
Board Cover
Location
label label
C
COM
IN2
ECOFB
A
R
24V~
C
COM
IN1
MAT
R
24V~
IN3
OAH
H
C
COM
R
24V~
IN4
SAH
Johnson Controls Ducted Systems
B C
Description
24 VAC common/0-10 VDC negative for
economizer actuator position feedback
0-10 VDC positive input from economizer
actuator position feedback
24 VAC hot supplied for economizer actuator
position feedback
Mixed air temperature sensor input from 10KΩ
@ 77°F, Type III negative temperature
coefficient thermistor
24 VAC hot supplied for the outdoor air
humidity sensor
0-10 VDC positive input from the Outdoor Air
Humidity sensor
24 VAC common/0-10 VDC negative for the
outdoor air humidity sensor
24 VAC hot supplied for the supply air humidity
sensor
0-10 VDC positive input from the Supply Air
Humidity sensor
D E
Connects through circuit trace to 24V~ IN pin COM
The EconDampPos parameter reports input status (0-100%).
Used to meet California Title 24 requirements for economizer
actuator position feedback.
Connects through circuit trace to 24V~ IN pin HOT
The MAT parameter reports input status (°F/°C), 3.65 VDC
reading MAT (+) to COM (−) with open circuit. Read-only use in
current control revision.
Connects through circuit trace to 24V~ IN pin HOT
OAH parameter reports input status (0-100%H). Used in outdoor
air enthalpy calculation for dual enthalpy economizer free cooling
changeover.
Connects through circuit trace to 24V~ IN pin COM
Connects through circuit trace to 24V~ IN pin HOT
SAH parameter reports input status (0-100%H). Unused in
current control revision.
5167531-YIM-J-1019
F
G
Function and comments
35