Macurco 6 Series User guide

APPLICATION GUIDE
This publication is intended to serve as a guideline for the use of the Macurco products.
It is not to be considered all-inclusive, nor is it intended to replace the policy and
procedures for any facility. If there are any doubts about the applicability of the
equipment to your situation, consult an industrial hygienist or call Macurco
Technical Service at 1-877-367-7891
GAS DETECTION

2
Gas Detection 101 ............................................................................................................................................. 3
Parking Garage & Car Dealerships / Maintenance Bays........................................................................4
Ambulance & Firetruck Bays / Loading Docks................................................................................5
Beverage Dispensing / Breweries & Wineries........................................................................ 6
Restaurants / Boiler & Mechanical Rooms ..................................................................... 7
General Warehouse & Forklifts / Battery Charging & Data Centers................... 8
Grow Facilities / Ice Rinks ................................................................................9
Cryosauna & Labs / Landfills................................................................. 10
Control Panel / Commercial Series Product Overview.........11-12
Types of Systems ............................................................ 13 -14
Common Accessories / Maintenance.........................15
TABLE OF CONTENTS

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GAS DETECTION 101
THREE TYPICAL GAS HAZARDS TO BE AWARE OF
• Where Oxygen levels are too rich, environments have the potential to become an
explosive environment
• Where Oxygen levels are too low, people within the environment can succumb to
asphyxiation
•Gases such as Oxygen, Carbon Dioxide, Nitrogen, Helium, Argon
ASPHYXIANT
OR OXYGEN
DEPLETING
FLAMMABLE • Having the right combination of an ignition source, oxygen, and fuel in a gas or vapor
form provides for the necessary means to create a fire or explosion
• The minimum concentration of combustible gas or vapor necessary to support its
combustion in air is defined as the Lower Explosive Limit (LEL). Below this level, the gas
mixture is too “lean” to burn
• The maximum concentration of a gas or vapor that will burn in the air is defined as the
Upper Explosive Limit (UEL). Above this level, the mixture is too “rich” to burn
• The range between the LEL and UEL is known as the flammable range for that gas or vapor
• Gases such as Methane, Hydrogen, Propane
TOXIC
• Some gases are poisonous and are dangerous to life at very low levels. Some toxic
gases have distinct odors (H2S, NH3) and others have no odors at all (CO)
• Very low levels inhaled, ingested, or absorbed through the skin pose adverse effects
from exposure
• Gases such as Carbon Monoxide, Nitrogen Dioxide, Ammonia, Hydrogen Sulfide

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PARKING GARAGES
CAR DEALERSHIPS / MAINTENANCE BAYS
Enclosed parking garages have long been using detection for vehicle exhaust. The primary
gases present are Carbon Monoxide and Nitrogen Dioxide resulting from incomplete
combustion within vehicles.
A prominent benefit of installing a gas detection system in a garage is the cost
savings on electrical and energy consumption. On average within one year of
installing a system, the money spent on a gas detection system is recouped.
According to IMC 2018 – the only alternative to running fans at full
speed every hour of every day is to install a CO/NO2system.
COMMON GASES:
Carbon Monoxide, Nitrogen Dioxide, Combustibles
MACURCO PRODUCTS:
CX-6 (CO & NO2), CM-6 (CO), TX-6-ND (NO2),
GD-6 (Combustibles)
Car dealerships and maintenance bays are considered occupied spaces. Ventilation
equipment is heavily relied upon to mitigate vehicle exhaust that results in potential fumes
from Carbon Monoxide and Nitrogen Dioxide.
A prominent benefit of installing a gas detection system in a garage is the cost
savings on electrical and energy consumption. On average within one year of
installing a system, the money spent on a gas detection system is recouped.
According to IMC 2018 – the only alternative to running fans at full
speed every hour of every day is to install a CO/NO2system.
COMMON GASES:
Carbon Monoxide, Nitrogen Dioxide, Combustibles
MACURCO PRODUCTS:
CX-6 (CO & NO2), CM-6 (CO), TX-6-ND (NO2),
GD-6 (Combustibles)

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LOADING DOCKS
AMBULANCE / FIRETRUCK BAYS
Ambulance and firetruck bays are typically connected to another occupied building where
people reside. It is extremely critical to monitor toxic gases and exhaust appropriately to
ensure the safety of the residents and crews.
A prominent benefit of installing a gas detection system in a garage is the cost
savings on electrical and energy consumption. On average within one year of
installing a system, the money spent on a gas detection system is recouped.
According to IMC 2018 – the only alternative to running fans at full
speed every hour of every day is to install a CO/NO2system.
COMMON GASES:
Carbon Monoxide, Nitrogen Dioxide, Combustibles
MACURCO PRODUCTS:
CX-6 (CO & NO2), CM-6 (CO), TX-6-ND (NO2),
GD-6 (Combustibles)
With large vehicles coming and going regularly, vehicle exhaust is a major hazard within
loading docks. If not properly ventilated, employees could be exposed to toxic fumes
regularly.
Much like a parking garage, a gas detection system can cut costs on
ventilation equipment operations and noise pollution.
According to IMC 2018 – the only alternative to running fans
at full speed every hour of every day is to install a CO/NO2
system.
COMMON GASES:
Carbon Monoxide, Nitrogen Dioxide, Combustibles
MACURCO PRODUCTS:
CX-6 (CO & NO2), CM-6 (CO), TX-6-ND (NO2),
GD-6 (Combustibles)

6
BEVERAGE DISPENSING
BREWERIES / WINERIES
High levels of Carbon Dioxide are found in pits, storage tanks, bottling rooms and the
fermentation process within wineries. Carbon Dioxide is heavier than air and will fall to the
floor if leaking from a tank displacing the Oxygen.
Carbon Monoxide has the potential to be present in these applications due to the
incomplete combustion of combustible gases during their manufacturing process
and heating of the venue.
OSHA and NIOSH have regulations on exposure to these gases (CO,
CO2, Combustible) over some time.
COMMON GASES:
Carbon Dioxide, Carbon Monoxide, Oxygen Deficiency,
Combustibles
MACURCO PRODUCTS:
CD-6MC (CO2), CD-6B (CO2), CM-6 (CO), OX-6 (O2),
GD-6 (Combustibles)
New legislation dictates any storage of a Carbon Dioxide 100lb tank or more for beverage
dispensing must result in a Carbon Dioxide monitor present. This is a state by state code
which is indicated on what year of IFC the State has adopted.
Restaurants & Bars / Gas Stations / Cafeterias etc. are all common applications
where the Carbon Dioxide code is prevalent.
Per IFC 2015 (5307.1) and IFC 2018 (5307), there are different
alarm values required.
• 2015 – Activate alarm at 5,000ppm of CO2 (CD-6MC)
• 2018 - Activate low alarm at 5,000ppm of CO2 (CD-6B)
• 2018 - Activate high alarm at 30,000ppm of CO2 (CD-6B)
COMMON GASES:
Carbon Dioxide
MACURCO PRODUCTS:
CD-6G (CO2), CD-6B (CO2)

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RESTAURANTS / COMMERCIAL KITCHENS
BOILER / MECHANICAL ROOMS
Mechanical rooms are often forgot about as unsafe spaces. Since Methane and/or Propane
are commonly used for heating, a leak can become catastrophic. If the gases are not fully
combusted a harmful poisonous gas can result in Carbon Monoxide. Carbon Monoxide
poisoning can become fatal if concentrations become high enough.
Chillers are also found in mechanical rooms and have the potential to leak
refrigerant gases and that can become costly and extremely hazardous.
PER OSHA – 50ppm of CO Permissible Exposure Level over 8 hours.
COMMON GASES:
Carbon Monoxide, Combustibles, Refrigerants
MACURCO PRODUCTS:
CM-6 (CO), GD-6 (Combustibles), RD-6 (Refrigerants)
Appliances in kitchens such as grills, stoves, and fryers are often using natural gas
and/or propane for their heating source. Carbon Monoxide is a by-product of
these gases and if methane (natural gas) or propane leak it may cause an
explosion.
Legislation for commercial kitchens may change depending on the state
but following NFPA 54 regarding the National fuel gas code is a good
place to start.
COMMON GASES:
Carbon Monoxide, Combustibles
MACURCO PRODUCTS:
CM-6 (CO), GD-6 (Combustibles)

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GENERAL WAREHOUSE / FORKLIFTS
BATTERY CHARGING / DATA CENTERS
Hydrogen is a common gas present in any atmosphere where battery charging exists.
Golf cart charging/storage facilities with forklifts have become a popular application
due to the volatile nature of Hydrogen gas.
Data centers are also using Hydrogen as a footprint to replace greenhouses
gases that in the past were produced at much higher levels.
The Uniform Fire Code, International Fire Code allows Hydrogen
levels at 1% by volume or 25% of the lower explosion limit
(LEL).
COMMON GASES:
Hydrogen
MACURCO PRODUCTS:
GD-6 (Combustibles)
Warehouses are a busy place with personnel and forklifts. Whether gas powered or
battery powered, gases are present. Carbon Monoxide and Nitrogen Dioxide are
present due to vehicle exhaust and Hydrogen gas can be present due to the
charging of the forklift batteries.
Fixed gas detection is present in these applications for the safety of
employees and the prevention of loss of goods due to explosions
from Hydrogen.
COMMON GASES:
Carbon Monoxide, Nitrogen Dioxide, Hydrogen,
Combustibles
MACURCO PRODUCTS:
CX-6 (CO & NO2), CM-6 (CO), TX-6-ND (NO2),
GD-6 (Combustibles)

9
ICE RINKS
GROW / EXTRACTION FACILITIES
The grow industry has evolved and become one of the hotbeds in America. Whether growing
tomatoes, lettuce or cannabis, gas detection is prevalent throughout this application.
Carbon Dioxide is injected into these rooms at a constant PPM value of 1000-2000ppm.
Other gases found within these grow houses are Carbon Monoxide and Oxygen.
Everyday consumer products like lettuce, tomatoes, and others are being
cultivated indoors. These operations also are injecting Carbon Dioxide into
the growth areas for the optimum product.
COMMON GASES:
Carbon Dioxide, Carbon Monoxide, Oxygen (enrichment or
depletion), Combustibles
MACURCO PRODUCTS:
CD-6G (CO2), CD-6B (CO2), CD-6MC (CO2), CM-6 (CO),
OX-6 (O2), GD-6 (Combustibles)
Several gases can be found in ice rinks but Ammonia is the most common gas as it
is a chilling agent to keep the ice from melting. Exposure to high concentrations
of Ammonia can cause extreme health issues and needs to be constantly
monitored.
Other gases that can be found include Carbon Monoxide and
Combustible gases due to the vehicles on ice.
COMMON GASES:
Ammonia, Carbon Monoxide, Combustibles
MACURCO PRODUCTS:
TX-6-AM (NH3), CM-6 (CO), GD-6 (Combustibles)

10
CRYOSAUNA / LABS
LANDFILLS
Due to growing cities, old landfills are being converted into commercial or residential
developments. Due to the dangers of methane seeping up through the ground the
need to monitor methane levels is being required.
The decomposition of garbage results in both Methane and Hydrogen
Sulfide being by-products in these environments. These landfills can have
dangerous gases rising to the surface or accumulating in the area,
Methane and/or Hydrogen Sulfide. High levels of Methane can
displace Oxygen in the air resulting in an array of health issues and
at high concentrations can be explosive. Hydrogen Sulfide is a
toxic gas that has a pungent rotten egg smell and very high
levels can be deadly.
Common Gases:
Methane, Hydrogen Sulfide
Macurco Products:
GD-6 (Combustibles), TX-6-HS (H2S)
Many labs use inert gases such as Nitrogen, Helium, and Argon during their processes.
These inert gases can readily deplete Oxygen level and cause asphyxiation.
Cryosaunas are popping up everywhere as a new way to rehabilitate the body.
This cold chamber uses liquid Nitrogen to get temperatures below -100
degrees Fahrenheit. Oxygen depletion has become a concern should a tank
ever leak.
Storage of Combustible gas tanks in labs also have the potential to
leak combustible gases.
COMMON GASES:
Oxygen (depletion & enrichment), Combustibles
MACURCO PRODUCTS:
OX-6 (O2), GD-6 (Combustibles)