Table 11 - Humidity Sensor Output; Table 12 - Co Sensor Output - York J Series Manual

Humidity Temperature Sensor – Outside, Return
and UnderFloor (MIT)
The humidity/temperature sensor is a combination sen-
sor that will output a 0 to 5 volt DC voltage in response
to a the relative humidity sensed. The humidity sensor
is used in conjunction with the economizer function.
The combination sensor also has a temperature sensor
that senses the outdoor air temperature and has the same
TABLE 11 – HUMIDITY SENSOR OUTPUT
% RELATIVE HUMIDITY
5
10
15
20
25
30
35
40
45
50
CO Sensor
2
The CO sensor is used in conjunction with the Demand
2
Ventilation option. The demand for ventilation is deter-
mined by comparing the level of CO
to the Demand Ventilation Setpoint. The CO
the building is measured by the CO
TABLE 12 – CO SENSOR OUTPUT
2
PPM CO
2
200
400
600
800
1000
1200
1400
1600
1800
2000
2200
2400
2600
JOHNSON CONTROLS
HUMIDITY SENSOR OUTPUT TABLE
OUTPUT VOLTAGE - VDC
0.25
0.50
0.75
1.00
1.25
1.50
1.75
2.00
2.25
2.50
in the building
2
level in
2
sensor and outputs
2
CO OUTPUT TABLE
2
OUTPUT VOLTAGE - VDC
0.40
0.80
1.20
1.60
2.00
2.40
2.80
3.20
3.60
4.00
4.40
4.80
5.20
resistance value of a "stand-alone" outdoor sensor. The
resistance value for a specific outdoor temperature is
shown in Table 8. Note that the combination humid-
ity/temperature sensor has four terminals – two for the
humidity sensor and two for the temperature sensor.
% RELATIVE HUMIDITY
55
60
65
70
75
80
85
90
95
100
0 to 10 volts DC based on the level of carbon dioxide
sensed. The unit controller then modulates the outside
air dampers to bring the level of CO
the DC output for a given CO
PPM CO
2
2800
3000
3200
3400
3600
3800
4000
4200
4400
4600
4800
5000
FORM 100.50-NOM7 (808)
OUTPUT VOLTAGE - VDC
2.75
3.00
3.25
3.50
3.75
4.00
4.25
4.50
4.75
5.00
. Table 12 illustrates
2
level.
2
OUTPUT VOLTAGE - VDC
5.60
6.00
6.40
6.80
7.20
7.60
8.00
8.40
8.80
9.20
9.60
10.00
73
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