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)

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.

Overview

1. Function Description
2. Important Technical Specifications
3. Usage Features
4. Maintenance Features

The Trane CO2 Demand-Controlled Ventilation Wall-Sensor (ordering number: 4190 4100) is a device designed for demand-controlled ventilation in zone applications. It utilizes advanced silicon-based Non-Dispersive InfraRed (NDIR) technology to ensure exceptional stability and reliable performance.

Function Description

The sensor measures carbon dioxide (CO2) levels in a room to facilitate demand-controlled ventilation. It provides output signals that can be used by a controller to adjust ventilation based on CO2 concentration, thereby optimizing indoor air quality and energy efficiency.

Important Technical Specifications

• Measuring Range: 0-2000 parts per million (ppm) CO2.
• Accuracy at 25°C: < ± [40 ppm CO2 + 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%).
• Output Signals (Jumper Selectable): 4-20 mA, 0-20 mA, 0-10 Vdc.
• Resolution of Analog Outputs: 10 ppm CO2.
• 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.
• 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).
• Housing Material: ABS plastic.
• Mounting Holes: Designed for standard Asian, European, and North American junction boxes.
• Dimensions: 4¼ in. x 3⅛ in. x 1⁷⁄₁₆ in. (108 mm x 80 mm x 36 mm).

Usage Features

• Power Supply Requirements: The sensor operates with a nominal 24 Vac supply, which should be maintained between 20 to 26 Vac.
  • Caution (Equipment Damage): It is crucial to connect the power wire only to the 24V terminal. Connecting it to the output terminal can damage the equipment.
  • Multiple Sensors: When connecting multiple sensors to a single 24 Vac transformer, it is recommended to use a separate floating supply for each sensor to prevent a common loop and the risk of short-circuit. If sharing one transformer, the phase (~) must always be connected to the 24V connector in each sensor to maintain polarity and avoid short-circuit through the shared common line at the controller.
• Mounting:
  1. Select an interior wall location with good air circulation, approximately 54 inches (1.4 m) from the floor.
  2. Remove the back plate, thread power and output signal wires through the hole in the back plate. For surface wiring, cut-outs can be made in the thinner section of the back plate.
  3. Mount the back plate to the wall using screws, ensuring the arrow on the back plate indicates the mounting direction.
  4. Set the output type (0-10 Vdc, 0-20 mA, 4–20 mA) using the two jumpers on the circuit board next to the terminal block. The default setting is 4-20 mA.
  5. Insert the circuit board into the back plate without pressing the metal tube.
  6. Connect power and signal wires to the screw terminals on the circuit board.

Maintenance Features

• Low Maintenance: The CO2 sensor boasts excellent stability and generally requires no maintenance.
• Calibration:
  • In most environments, the recommended calibration interval is five years.
  • A trained service technician can use a portable CO2 meter to certify sensor calibration if needed.
  • If the sensor reading deviates significantly from a reference value, it can be re-calibrated in the field using a calibration kit, software, and calibration gases.
  • For certified accuracy, the sensor must be calibrated against accurate and traceable calibration gases in a laboratory. Trane BAS can provide further details for this process.

Trane 4190 4100 Specifications

General

Brand	Trane
Model	4190 4100
Category	Gas Detectors
Language	English