16. 04. 21. Document Number 671635
1
Nuaire | Western Industrial Estate | Caerphilly | CF83 1NA | nuaire.co.uk
ESCO-CO2D
Ecosmart Connect Duct Mounted CO
2
Sensor
Installation Manual
1.0 SAFETY INFORMATION
•
The provision of the electrical supply and the connection of the unit to the mains must be
carried out by a qualified electrician.
1.1 Hazard Symbols
GENERAL WARNING
Signifies a general warning regarding hazard specified by supplementary information.
REFER TO INSTRUCTION MANUAL
Read and understand the installation and maintenance manual before installing,
operating or maintaining this product.
1.2 Important Information
This manual contains important information on the safe and
appropriate assembly, transport, commissioning, operation,
maintenance, disassembly and simple troubleshooting of the product.
While the product has been manufactured according to the accepted
rules of current technology, there is still a danger of personal injury or
damage to equipment if the following general safety instructions and
the warnings contained in these instructions are not complied with.
•
Read these instructions completely and thoroughly before
working with the product.
•
Keep these instructions in a location where they are accessible
to all users at all times.
•
Always include the operating instructions when you pass the
product on to third parties.
1.3 Personal Protective Equipment
The following minimum Personal Protective Equipment (PPE) is
recommended when interacting with Nuaire product:
•
Protective Steel Toed Shoes -
when handling heavy objects.
•
Full Finger Gloves (Marigold PU800 or equivalent) -
when
handling sheet metal components.
•
Semi Fingerless Gloves (Marigold PU3000 3DO or equivalent)
- when conducting light work on the unit requiring tactile
dexterity.
•
Safety Glasses
- when conducting any cleaning/cutting operation
or exchanging filters.
•
Reusable Half Mask Respirators
- when replacing filters which
have been in contact with normal room or environmental air.
Nuaire would always recommend a site specific risk assessment by a
competent person to determine if any additional PPE is required.
2.0 INTRODUCTION
Nuaire’s Ecosmart Connect Controls offer a compact, duct mounted
carbon dioxide (CO
2
) sensor for measuring and transmitting CO
2
levels,
ranging from 0 to 2,000 parts per million (ppm). Nuaire’s CO
2
sensors
are easy to install and to operate.
The silicon-based sensor delivers high accuracy and long-term
measurement stability (±100 ppm) over a five-year period without
calibration. The diffusion-aspirated, single-beam, dual-wavelength
sensor structure is remarkably simple. It consists of an infrared (IR)
source, a sample cell, an IR detector, and a tuneable interference filter
that enables measurements at two wavelengths. This innovative design
provides precise reference readings that eliminate the typically broad
deviation expected from a traditional CO
2
sensor.
The ESCO-CO2D duct mounted CO
2
sensor is intended to
provide an input to equipment under normal operating conditions.
Where failure or malfunction of the sensor could lead to personal injury or
property damage to the controlled equipment or other
property, additional precautions must be designed into the control system.
Incorporate and maintain other devices, such as supervisory or alarm
systems or safety or limit controls, intended to warn of, or protect against
failure or malfunction of the sensor.
2.1 MECHANICAL INSTALLATION
2.2 Parts Included
The duct mount CO
2
sensor is shipped assembled. It consists of three
main parts: base and Printed Circuit Board (PCB), cover, and mounting
flange with four screws (for probe depth adjustment). A conduit
adaptor is also included.
2.3 Mounting Location
When selecting a location for the sensor, note the following:
•
The sensor is designed for duct mounting in any position.
•
The probe is best mounted in the return air stream.
•
The device should penetrate the duct by a minimum of 76mm to
ensure the sensing part of the element is fully in the air stream.
•
The sensor should be placed in an area free of condensation.