5121835-TIM-J-1118
36
Johnson Controls Ducted Systems
H
C
COM
24 VAC common/0-10 VDC negative for the
supply air humidity sensor
Connects through circuit trace to 24V~ IN pin COM
R
24V~
24 VAC hot supplied for the indoor air quality
sensor
Connects through circuit trace to 24V~ IN pin HOT
IN5
IAQ
0-10 VDC positive input from the Indoor Air
Quality sensor
IAQRange parameter sets the CO2 parts per million measured
by the indoor air quality sensor when it outputs 10 VDC; IAQ
parameter reports input status (0-5000ppm). Used for demand
ventilation functions if the NetIAQ parameter indicates ?Unrel.
C
COM
24 VAC common/0-10 VDC negative for the
indoor air quality sensor
Connects through circuit trace to 24V~ IN pin COM
R
24V~
24 VAC hot supplied for the outdoor air quality
sensor
Connects through circuit trace to 24V~ IN pin HOT
IN6
OAQ
0-10 VDC positive input from the Outdoor Air
Quality sensor
OAQRange parameter sets the CO2 parts per million measured
by the outdoor air quality sensor when it outputs 10 VDC; OAQ
parameter reports input status (0-5000ppm). Used for demand
ventilation function when DVent-Mode selection is Diff between
IAQ and OAQ and the NetOAQ parameter indicates ?Unrel.
C
COM
24 VAC common/0-10 VDC negative for the
outdoor air quality sensor
Connects through circuit trace to 24V~ IN pin COM
R
24V~
24 VAC hot supplied for the air monitoring
station sensor
Connects through circuit trace to 24V~ IN pin HOT
IN7
FR AIR
0-10 VDC positive input from the air monitoring
station sensor
MOA-Range parameter sets the cubic feet per minute/liters per
second measured by the air monitoring station sensor when it
outputs 10 VDC; Fr Air parameter reports input status (0-
50000CFM/23595lps). Used for economizer minimum position
reset in speed-controlled indoor blower applications.
C
COM
24 VAC common/0-10 VDC negative for the air
monitoring station sensor
Connects through circuit trace to 24V~ IN pin COM
R
24V~
24 VAC hot supplied for the building pressure
sensor
Connects through circuit trace to 24V~ IN pin HOT
IN8
BLDG
PRES
0-5 VDC positive input from the Building
Pressure sensor
BldgPres parameter reports input status (-.250-.250”/w/-.062-
.062kPa). Used for modulating power exhaust functions when
ExFType selection is Modulating Damper or Variable Frequency
Fan.
C
COM
24 VAC common/0-5 VDC negative for the
building pressure sensor
Connects through circuit trace to 24V~ IN pin COM
Smart Equipment™ economizer board - analog inputs (continued)
Location
Board
label
Cover
label
Description
Function and comments
Smart Equipment™ economizer board - LED details
Location
Board
label
Cover
label
Description
Function and comments
B
POWER
POWER Green UCB power indicator
Lit indicates 24 VAC is present at 24V~ IN
COM
and
HOT
pins
FAULT
FAULT
Red networking error and firmware error
indicator
1/10th second on/off flashing indicates a networking error
(polarity, addressing, etc.) or a firmware error (likely correctable
with re-loading from USB flash drive)
SA BUS
SA BUS
Green UCB SA bus communication
transmission indicator
Lit/flickering indicates UCB-to-economizer board SA bus
communication is currently active, off indicates the economizer
board is awaiting SA bus communication
