2 3
There are two different ICG-30 units, one is used for
Propane (ICG-30LP) and one is used for Natural Gas (ICG-30NG).
Below are the differences between the two units. Make sure you have
selected the correct unit and are using the matching fuel supply.
• Forsafety,itisrecommendedtoalwaysuseaSentinelCo2monitor/controller
withtheunittomeasurecurrentCo2gaslevelsintheenvironment.Levels
over2,000PPMshouldbeavoided.
• Mountunitsecurelyinahangingpositionusingthehardwareprovided.
Maintainaminimumof20”ofclearanceonallsidesoftheunit.DONOT
PLACEUNITONGROUND/TABLEETC.
• NG/LPgasesaredangerous–Checkallfittingsbysprayingwithsoapywater
before operating unit
• Ifgasissmelled,immediatelyunplugunitandventilatethearea.Checkall
connections again.
• Alwaysdisconnectpowertotheunitbeforeusingfoggersorbugbombs.
• Unitgetsextremelyhotwheninoperation.Topreventburns,donottouchthe
unit.Donotallowflammableobjectstocomeintocontactwiththeunit.
• Thisunitshallnotbeexposedtodripping,splashingorsprayingofliquids.
Protectunitfromvapors,foggersetc.
• Cleanunitwithcleandrycloth,nooilsorsolvents
• Donotputpaperclips,toolsetcinsideunitopeningsorreceptacles.Possible
fire,shockordeathmayoccur.
• Verifypowersourcepriortoconnectingunittopowersourceand/orCO2
controller or timer
• UseonlySentinelsuppliedpowersupplytooperatetheunit.Useofanyother
powersupplywillvoidwarranty,andcouldcauseapossiblesafetyhazard.
• Protectanypowercordsfrombeingwalkedon,pinchedorcrushed
• Protectanygassupplyhosesfrombeingwalkedon,pinchedorcrushed
• Allbrassfittingsareflarefittingsandself-sealing.DonotuseTeflontapeon
gas connections.
• Unitistobeusedwithindefinedenvironmentalparameters
• Usecautionwhenoperatinginhighhumidityenvironments
• Thisunitcontainsnouser-serviceableparts.Donotattempttoservicethis
product. Breaking any warranty seal will void warranty.
ICG-30LP: Liquid Propane,otherwise
known as LP or Propane, is stored in
pressurized tanks of varying sizes.
The gas exiting the pressurized tank
must first be regulated to a very low
pressurebeforeitenterstheICG-30.
The standard for measuring the low
pressure is inches of water column
orInch/WC.TheICG-30LPoperates
at11”WC,orabout1/2PSI(2.8kPa).
The LP regulator provided with the
unitMUSTbeusedunlessitisverified
that the propane gas supply is already
regulatedto11”WC.TheprovidedLP
regulator is designed to connect di-
rectlytoportableLPtanks.Italsohas
a built-in safety function that limits
the flow of gas to a very low level in
the event of a large gas leak.
OncetheLPgasisregulateddownto
thecorrectpressure,itenterstheunit
and flows through solenoid valves and
theproprietarySentinelstainlesssteel
burnerassembly.TheSentinelburner
assembly is designed to be the most
efficient, cleanest burning CO2 gen-
erator available to today’s gardeners.
ItistheONLYCO2generatorburner
weareawareofwithalowNOXde-
sign. The 3 stage design allows the
ICG-30LP to have a Co2 output of
10.6,21.2and31.8cuft/hour.These
modeswillcreate9,000,18,000and
27,000BTU/hrorheat,andalarge
amount of water vapor.
ICG-30NG: Natural Gas, otherwise
known as NG, is piped directly into
homesandbusinessesfromanexten-
sive pipeline system. The gas supply
entering the building can vary from
verylowpressure(lessthan1/4 PSI)
toover5PSI.TheNGprovidedtothe
ICG-30NGmustfirstbe regulatedto
a very low pressure before it enters
theunit.Thestandardformeasuring
the low pressure is inches of water
columnorInch/WC.TheICG-30NG
operatesat4.5”WC,orabout1/4PSI
(1.15kPa).TheNGregulatorprovided
withtheunitMUSTbeusedunlessit
is verified that the natural gas supply
isalreadyregulatedto4.5”WC.
OncetheNGgasisregulateddownto
thecorrectpressure,itenterstheunit
and flows through the solenoid valves
andtheproprietarySentinelstainless
steel burner assembly. The Sentinel
burner assembly is designed to be the
most efficient, cleanest burning CO2
generator available to today’s gar-
deners.ItistheONLYCO2generator
burnerweareawareofwithalowNOX
design.The3stagedesignallowsthe
ICG-30NGtohaveaCo2outputof9,
18and27cuft/hour.Thesemodes
willcreate9,000,18,000and27,000
BTU/hrorheat,andalargeamount
of water vapor.
ICG-30 LP / ICG-30 NG INSTRUCTIONS
Important Warnings and Cautions
Read all instructions before installation and usage.
Save these instructions.
ICG-30 LP AND ICG-30 NG INTRODUCTION
Sentinel Intelligent Carbon Dioxide Generator
WARNING: Installation and connection of gas lines must be in
compliance with local and national building codes.
ANY QUESTIONS...
Consult a licensed installer or contact Sentinel technical support
