Trane 4190 4100 User Manual

The Trane Company
3600 Pammel Creek Road
La Crosse, WI 54601-7589
© 2002 American Standard Inc. 3270 3361 Rev 1
®
CO
2
Demand-Controlled Ventilation Wall-Sensor
Ordering number: 4190 4100
The carbon-dioxide (CO
2
) sensor, shown in Figure 1,
is designed especially for demand-controlled
ventilation zone applications. The exceptional
stability and reliable performance come from
advanced silicon based Non-Dispersive InfraRed
(NDIR) technology.
Figure 1: CO2 demand-controlled ventilation sensor
Specifications
Table 1 shows the specifications of the CO
2
sensor.
Power supply requirements
CAUTION
AVOID EQUIPMENT DAMAGE!
Make sure that you connect the power wire only to
the 24V terminal. Connecting the power wire to the
output terminal may result in equipment damage.
The CO2 sensor is designed to operate with a
nominal 24 Vac supply. The power supply should
maintain the voltage between 20 to 26 Vac.
Use a 24 Vac power supply according to the following
guidelines. If more than one sensor is connected to
one 24 Vac transformer, a common loop is formed
and the risk of a short-circuit increases. To avoid
this, use a separate floating supply for each sensor,
as shown in Figure 2.
Figure 2: Separate ac power supplies
Table 1: Sensor specifications
Measuring range
0–2000 parts per million (ppm)
CO
2
Accuracy at 25°C
< ± [40 ppm CO
2
+ 3% of
reading] (includes repeatability
and calibration uncertainty)
Non-linearity < 1.0% full scale (FS)
Temperature
dependence of output
0.3% FS/°C
Long-term stability < 5.0% FS/5-years
Recommended
calibration interval
5 years
Response time 1 minute (0–63%)
Operating temperature From 59 to 95°F (15 to 35°C)
Storage temperature From –4 to 158°F (–20 to 70°C)
Humidity range 0–85% relative humidity (RH)
Thinner section for
cut-out
Output signals
(jumper selectable)
4–20 mA, 0–20 mA, 0–10 Vdc
Resolution of analog
outputs
10 ppm CO
2
Recommended external
load
Current output: max. 500 Ω
Voltage output: min. 1000 Ω
Power supply Nominal 24 Vac
Power consumption < 5 VA
Warm-up time < 15 minutes
Housing material ABS plastic
Mounting holes
For standard Asian, European,
and North American junction
boxes
Dimensions
4
1
/4 in. × 3
1
/8 in. × 1
7
/16 in.
(108 mm × 80 mm × 36 mm)
Table 1: Sensor specifications (Continued)

Trane 4190 4100 Specifications

General

Brand	Trane
Model	4190 4100
Category	Gas Detectors
Language	English

Summary

Sensor Specifications

Measuring Range

Specifies the CO2 measurement range in parts per million.

Accuracy at 25°C

Details the sensor's accuracy at a standard temperature.

Non-linearity

Defines the non-linearity of the sensor's output signal.

Temperature Dependence of Output

Indicates how output varies with temperature changes.

Long-Term Stability

Specifies the sensor's stability over a five-year period.

Recommended Calibration Interval

States the recommended frequency for sensor calibration.

Response Time

Defines the time it takes for the sensor to respond.

Operating Temperature Range

Specifies the acceptable temperature range for operation.

Storage Temperature Range

Specifies the acceptable temperature range for storage.

Humidity Range

Specifies the acceptable relative humidity range for operation.

Output Signal Types

Details the selectable output signal options.

Resolution of Analog Outputs

Specifies the resolution of the analog output signals.

Recommended External Load

Indicates the recommended external load for outputs.

Power Supply Requirements

Details the nominal power supply voltage and requirements.

Power Consumption

Specifies the maximum power consumption of the sensor.

Warm-up Time

Defines the time required for the sensor to stabilize.

Housing Material

Identifies the material used for the sensor housing.

Mounting Holes

Details compatibility with standard junction boxes.

Dimensions

Provides the physical dimensions of the sensor.

Mounting the Sensor

Sensor Mounting Location

Recommends an optimal location for sensor installation.

Back Plate Installation

Instructions for mounting the sensor's back plate.

Wire Routing

Guidance on threading power and signal wires.

Output Type Selection

How to set the output signal type using jumpers.

Circuit Board Insertion

Procedure for inserting the circuit board correctly.

Wire Connection

Steps for connecting power and signal wires to terminals.

Power Wiring Guidelines

Shared Transformer Wiring

Instructions for wiring multiple sensors to one transformer.

Separate Power Supplies

Guidance on using separate floating supplies for each sensor.

Service and Maintenance

Maintenance Requirements

Information on the sensor's low maintenance needs.

Calibration Certification

Details on field and laboratory calibration procedures.