Indoor Air Content Sensor Settings - Honeywell Design and Application Technical Reference Manual

Section 8- W6215, W7215 And W7460 Economizer Modules

Indoor Air Content Sensor Settings

24VAC
Hot
24VAC
Com
+
2-10V
OUT
–
Free
Cool
Alarm
Unit
Control
Exhaust
Fan
Indoor
Fan
The DCV input can be any sensor with a 2 to
10 Vdc output such as the Honeywell C7242,
C7232 or C7632 carbon dioxide (CO
The sensor is supplied with preset
configurations that can be used if they meet
63-8594-02 Honeywell Economizers
ECONOMIZER
MODULE WITH
DCV SENSOR INPUT
24VAC
TR1
TR Hot
Com
B C
+
A D
So
+
Sr
5
1 2
Mininum
Position 3 4
SENSOR OUTPUT
T T1
Open
P P1 DCV SENSOR
Free Cooling
Maximum INPUT ON
Position
TEMINALS
Q Q1
Close
AQ
AQ AND AQ1
6V
+
AQ1
–
2V 10V
ISI
SD1
SD
Set Pt
AC AC1
ISI
6V 0A1
0A
2V
100%
OSI
Set Pt
OSI
6V
2V 10V
DCV
Set Pt
)sensor.
2
74
C7242 INDOOR
AIR CONTENT
CO2 SENSOR
ROOM CONCENTRATION CARBON
IN VOLTS DC DIOXIDE IN PARTS PER MILLION
0 500
650
1
800
2
950
3
1100
4
1250
5
6 1400
7 1550
8 1700
9 1850
10 2000
the application requirements. The output chart
illustrated on the right side of this page is the
Analog 1 configuration of startpoint and
throttling range for a linear output.
M23925A