Intellihot Combi i201X* User manual

To avoid product damage, personal injury, or
even possible death, carefully read, understand,
and follow all the instructions in the Installation
and Operation manuals before installing this
product. Improper installation, adjustment, alteration, or
maintenance can cause injury, loss of life, and/or property
damage. This water heater should be installed and
serviced by a qualified technician. The lack of proper
service can result in a dangerous condition.
This manual contains safety information, installation
instructions, and maintenance procedures. It must be left
with the homeowner or placed near the water heater in
a noncombustible place. The customer should retain this
manual for future reference.
WARNING
If the information in these instructions is not followed
exactly, a fire or explosion could result causing
property damage, personal injury, or death.
— Do not store or use gasoline or other flammable
vapors and liquids in the vicinity of this or any
other appliance.
WHAT TO DO IF YOU SMELL GAS
• Do not try to light any appliance.
• Do not touch any electrical switch; do not use
any phone in your building.
• Immediately call your gas supplier from a
neighbor’s phone. Follow the gas supplier’s
instructions.
• If you cannot reach your gas supplier, call the
fire department.
— Installation and service must be performed by
a qualified installer, service agency, or the gas
supplier.
FACTORY PRESET FOR USE WITH
NATURAL GAS
Direct-Vent Automatic Instantaneous Water Heater
(Chauffe-eau automatique instantané à ventilation directe)
FOR INDOOR INSTALLATIONONLY
(POUR INSTALLATION À L'INTÉRIEUR SEULEMENT)
120 Volt, 60 Hz, 5 Amps
Type of Gas
(Type de gaz)
: . . . . . . . . . . . . . . . .
Input Rating
(Entrer le Classement)
: Btu/hr Maximum . . .
Btu/hr Minimum . . .
Maximum Inlet Gas Pressure: . . . . . . . . . . . .
Minimum Inlet Gas Pressure: . . . . . . . . . . . .
Minimum Inlet Gas Pressure (for adjustments): . .
Maximum Water Pressure: . . . . . . . . . . . . .
Minimum Water Pressure: . . . . . . . . . . . . .
Recovery Rating: . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . .
Thermal Effi
ciency / :
Energy Factor:
NOx Emissions:
. . . . . . . .
(Pursuant to South CoastAir Quality Management District Rule 1146.2)
(Moins de 20 ppm)
(Jusqu'à 98 % / 0.94) (Jusqu'à 98 % / 0.94)
(Moins de 20 ppm)
(Dégagements minimums)
(Des non-combustibles) (D'une construction
combustible)
(conformément au règlement 1146.2 du "South Coast Air Quality Management District)
Top of heater
Minimum Clearances
From
Non-Combustibles
From Combustible
Construction
(Dessus du chauffe-eau)
Back of heater
(Arrière du chauffe-eau)
Front of heater
(Avantdu chauffe-eau)
Bottom of cabinet
(Côté canalisation)
Side (Côté)
5/8 in (15.8 mm)
6 in (15.2 cm)
6 in (15.2 cm)
2 in (50.8 mm)
12 in (30.4 cm)
5/8 in (15.8 mm)
6 in (15.2 cm)
2 in (50.8 mm)
1/2 in (12.7 mm)
12 in (30.4 cm)
Intellihot Green Technologies Inc.
2900 W. Main St.
Galesburg, IL 61401
Phone: [phone]
Email: [email protected]
Web: www.intellihot.com
Factory Preset
Natural Gas
(Réglage en usine pour gaz naturel)
199,000
20,000
13.0 W.C. (3.20 kPa)
8.0 W.C. (2.00 kPa)
8.0 W.C. (2.00 kPa)
150 psi (1034 kPa)
15 psi (103 kPa)
265 GPH (1003 LPH)
Up to 98% / 0.94
Less than 20 ppm
Field Conversion* to
Propane Gas
(Conversion* sur place au gaz propane)
199,000
20,000
10.5 W.C. (2.62 kPa)
3.0 W.C. (0.76 kPa)
11.0 W. C. (2.74 kPa)
150 psi (1034 kPa)
15 psi (103 kPa)
265 GPH (1003 LPH)
Up to 98% / 0.94
Less than 20 ppm
Check Box if
Converted to
Propane Gas
*Refer to Installation and Operation
manual for conversion procedure.
(Se référer au manuel d'installation et
de fonctionnement pour la procédure de
conversion.)
PRÉRÉGLAGES D'USINE POUR UTILISATION AVEC
GAZ NATUREL
(Pression de gaz d'arrivée maximum)
(Pression d'eau maximum)
(Pression d'eau minimum)
(Caractéristique de recouvrement)
(Efficacité thermique / Facteur énergétique)
(Émissions de NOx)
(Pression de gaz d'arrivée minimum)
(Pression de gaz d'arrivée minimum (pour ajustements))
Cocher la case si converti au gaz propane
ETL STICKER
Serial Number:
IGT-LBL-0005-01
(Numéro de série)
(Collant ETL)
Operation
Manual
Model: i201X
i251X
Intellihot Direct Vent Boiler/ Combination Water
heater. This product complies with ANSI Z21.13-
(2010) / CSA 4.9 Low Pressure Boiler and with
ANSIZ21.10.3 (2011) / CSA 4.3 Gas Water Heater. For
use as potable water heating and space heating.
Smart. Ecient. Endless
— Ne pas entreposer ni utiliser d’essence ou
ni d’autres vapeurs ou liquides inflammables
à proximité de cet appareil ou de tout autre
appareil.
QUE FAIRE SI VOUS SENTEZ UNE ODEUR DE GAZ
• Ne pas tenter d’allumer d’appareil.
• Ne touchez à aucun interrupteur; ne pas vous
servir des téléphones se trouvant dans
le bâtiment.
• Appelez immédiatement votre fournisseur de gaz
depuis un voisin. Suivez les instructions
du fournisseur.
• Si vous ne pouvez rejoindre le fournisseur,
appelez le service des incendies.
— L’installation et l’entretien doivent être assurés
par un installateur ou un service d’entretien
qualifié ou par le fournisseur de gaz.
AVERTISSEMENT
Assurez-vous de bien suivre les instructions données
dans cette notice pour réduire au minimum le
risque d’incendie ou d’explosion ou pour éviter tout
dommage matériel, toute blessure ou la mort.
Certified to
NSF/ANSI 372

3 Operation
Table of Contents
1. General Information
1.1 Items Shipped With Water Heater . . . . . . . . . . . . . . . 4
1.2 Contact Information. . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
1.3 Serial Number Plate Locations . . . . . . . . . . . . . . . . . . 4
2. Safety
2.1 Safety Signal Words . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
2.2 Installation Warnings . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
3. Operation
3.1 Control Panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
3.2 Display Icons. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
3.3 Turning Water Heater ON and OFF . . . . . . . . . . . . . . 8
3.4 Resetting (Clear) Error Codes . . . . . . . . . . . . . . . . . . . 8
3.5 Setting the Time . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
3.6 Setting the Domestic Water Temperature . . . . . . . 8
3.7 Setting Space Heating Temperature. . . . . . . . . . . . . 9
3.8 Real Time Parameter Display. . . . . . . . . . . . . . . . . . . . 9
3.9 Error Screen. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
4. Programming
4.1 Modes of Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
4.2 Viewing and Setting Modes of Operation . . . . . . 11
5. Maintenance
5.1 Cleaning the Inlet Water Strainer. . . . . . . . . . . . . . . 15
5.2 Draining the Water Heater . . . . . . . . . . . . . . . . . . . . . 15
5.3 Filling the Water Heater . . . . . . . . . . . . . . . . . . . . . . . 16
6. Troubleshooting
6.1 Error Code Chart . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
6.2 Wiring Diagram Chart . . . . . . . . . . . . . . . . . . . . . . . . . 19
6.3 Operational Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . 20
7. Serviceable Parts
7.1 Electrical Components . . . . . . . . . . . . . . . . . . . . . . . . 21
7.2 Blower, Gas Valve, and Exhaust. . . . . . . . . . . . . . . . . 22
7.3 Water Lines and Fittings . . . . . . . . . . . . . . . . . . . . . . . 23
7.4 Ignition Components. . . . . . . . . . . . . . . . . . . . . . . . . . 24
9. Warranty. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .27
10.Product Warranty Card . . . . . . . . . . . . . . . . . . . . .29
8.Multiple Units
8.1 Modes of Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . 25

connected to this unit (part number: IGT-SPR0074).
General Information 4
1. General Information
1.1 Items Shipped With Water Heater
The following items are shipped with the water heater; upper
mounting bracket (1), condensate drain (2), communication
cable (3), Operation manual (4), and Installation manual (5).
Note: Items 6 through 9 are spare parts shipped with the
unit. Two 10A bus fuses (6), electrode seal (7), O-rings
#015 (8), and 30psi relief valve (9).
IQ-007-250X
1
2
56
7
SPARES
3
8
To avoidproduct damage,personal injury, or
even possible death,carefully read,understand,
and followall theinstructions intheInstallation
andOperation manuals beforeinstallingthis
product. Improper installation, adjustment, alteration,or
maintenance can cause injury, loss oflife,and/or property
damage. This water heater should be installed and
serviced by a qualied technician. Thelack of proper
servicecan result in adangerous condition.
This manual contains safety information, installation
instructions,and maintenance procedures.It must be left
with the homeowner orplaced nearthe water heater in
anoncombustible place.Thecustomer should retain this
manual for future reference.
WARNING
Iftheinformationin theseinstructionsisnot followed
exactly,afire orexplosion could result causing
propertydamage,personalinjury,or death.
— Do notstore or use gasoline or other flammable
vapors and liquids in the vicinityof this orany
otherappliance.
WHATTODO IF YOU SMELL GAS
•
Donottry to light any appliance.
•
Donottouch anyelectrical switch; do not use
anyphone in your building.
•
Immediately call your gas supplierfrom a
neighbor’sphone.Followthe gas supplier’s
instructions.
•
Ifyou cannot reach your gas supplier, call the
firedepartment.
— Installation and service must be performed by
aqualified installer, service agency, or the gas
supplier.
Operation
Manual
Model: i200X
i250X
Intellihot Direct Vent Boiler/ Combination Water
heater.This product complies withANSI Z21.13-
(2010) /CSA 4.9 Low Pressure Boiler and with
ANSIZ21.10.3 (2011) / CSA 4.3 Gas Water Heater.For
use as potable water heating and spaceheating.
Smar
—Ne pas entreposer ni utiliser d’essence ou
ni d’autres vapeurs ou liquidesinflammables
àproximité de cet appareil ou de toutautre
appareil.
QUEFAIRESIVOUSSENTEZUNEODEURDE GAZ
•
Nepas tenter d’allumer d’appareil.
•
Ne touchez à aucuninterrupteur;ne pasvous
servirdes téléphonessetrouvantdans
lebâtiment.
•
Appelezimmédiatement votre fournisseurde gaz
depuis un voisin. Suivez les instructions
dufournisseur.
•
Sivous nepouvez rejoindre le fournisseur,
appelezle service des incendies.
—L’installation etl’entretien doiventêtre assurés
parun installateur ou un service d’entretien
qualifiéoupar le fournisseur de gaz.
AVERTISSEMENT
Assurez-vousdebien suivre les instructions données
danscette notice pourréduireau minimum le
risque d’incendie ou d’explosion ou pour évitertout
dommagematériel,toute blessureou la mort.
FACTORYPRESETFORUSEWITH
NATURALGAS
Direct-VentAutomaticInstantaneousWaterHeater
(Chauffe-eauautomatiqueinstantanéàventilationdirecte)
FORINDOORINSTALLATIONONLY
(POURINSTALLATIONÀL'INTÉRIEURSEULEMENT)
120Volt,60Hz,5Amps
TypeofGas
(Typedegaz)
:
....... .... .....
InputRating
(EntrerleClassement)
:Btu/hrMaximum...
Btu/hrMinimum...
MaximumInletGasPressure:............
MinimumInletGasPressure:............
MinimumInletGasPressure(foradjustments):..
MaximumWaterPressure:....... .... ..
MinimumWaterPressure:.............
RecoveryRating:................. .
............... ...
ThermalEfficiency/:
EnergyFactor:
NOxEmissions:
........
(PursuanttoSouthCoastAirQualityManagementDistrictRule1146.2)
(Moinsde20ppm)
(Jusqu'à98%/0.94)(Jusqu'à98%/0.94)
(Moinsde20ppm)
(Dégagementsminimums)
(Desnon-combustibles)(D'uneconstruction
combustible)
(conformémentaurèglement1146.2du"SouthCoastAirQualityManagement District)
Topofheater
MinimumClearances
From
Non-Combustibles
FromCombustible
Construction
(Dessusduchauffe-eau)
Backofheater
(Arrièreduchauffe-eau)
Frontofheater
(Avantduchauffe-eau)
Bottomofcabinet
(Côtécanalisation)
Side(Côté)
5/8in(15.8mm)
6in(15.2cm)
6in(15.2cm)
2in(50.8mm)
12in(30.4cm)
5/8in(15.8mm)
6in(15.2cm)
2in(50.8mm)
1/2in(12.7mm)
12in(30.4cm)
IntellihotGreenTechnologiesInc.
2900W.MainSt.
Galesburg,IL61401
Phone:[phone]
Email:i
[e-mail]
Web:www.intellihot.com
FactoryPreset
NaturalGas
(Réglageenusinepourgaznaturel)
199,000
20,000
13.0W.C.(3.20kPa)
8.0W.C.(2.00kPa)
8.0W.C.(2.00kPa)
150psi(1034kPa)
15psi(103kPa)
265GPH(1003LPH)
Upto98%/0.94
Lessthan20ppm
FieldConversion*to
PropaneGas
(Conversion*surplaceaugazpropane)
199,000
20,000
10.5W.C.(2.62kPa)
3.0W.C.(0.76kPa)
11.0W.C.(2.74kPa)
150psi(1034kPa)
15psi(103kPa)
265GPH(1003LPH)
Upto98%/0.94
Lessthan20ppm
CheckBoxif
Convertedto
PropaneGas
*RefertoInstallationandOperation
manualforconversionprocedure.
(Seréféreraumanueld'installationet
defonctionnementpourlaprocédurede
conversion.)
PRÉRÉGLAGESD'USINEPOURUTILISATIONAVEC
GAZNATUREL
(Pressiondegazd'arrivéemaximum)
(Pressiond'eaumaximum)
(Pressiond'eauminimum)
(Caractéristiquederecouvrement)
(Efficacitéthermique/Facteurénergétique)
(ÉmissionsdeNOx)
(Pressiondegazd'arrivéeminimum)
(Pressiondegazd'arrivéeminimum(pourajustements))
Cocherlacasesiconvertiaugazpropane
ETLSTICKER
SerialNumber:
IGT-LBL-0005-01
(Numérodesérie)
(CollantETL)
FACTORYPRESETFORUSEWITH
NATURALGAS
Direct-VentAutomaticInstantaneousWaterHeater
(Chauffe-eauautomatiqueinstantanéàventilationdirecte)
FORINDOORINSTALLATIONONLY
(POURINSTALLATIONÀL'INTÉRIEURSEULEMENT)
120Volt,60Hz,5Amps
TypeofGas
(Typedegaz)
:
........ ....... .
InputRating
(EntrerleClassement)
:Btu/hrMaximum...
Btu/hrMinimum...
MaximumInletGasPressure:..... ... . . . .
MinimumInletGasPressure:...... .. . . . .
MinimumInletGasPressure(foradjustments):..
MaximumWaterPressure:... . ..... .. ..
MinimumWaterPressure:... .... ..... .
RecoveryRating:......... ... . .. .. .
........ .... . . . .. .
ThermalEffi
ciency/:
EnergyFactor:
NOxEmissions:
........
(PursuanttoSouthCoastAirQualityManagementDistrictRule1146.2)
(Moinsde20ppm)
(Jusqu'à98%/0.94)(Jusqu'à98%/0.94)
(Moinsde20ppm)
(Dégagementsminimums)
(Desnon-combustibles)(D'uneconstruction
combustible)
(conformémentaurèglement1146.2du"SouthCoastAirQualityManagement District)
Topofheater
MinimumClearances
From
Non-Combustibles
FromCombustible
Construction
(Dessusduchauffe-eau)
Backofheater
(Arrièreduchauffe-eau)
Frontofheater
(Avantduchauffe-eau)
Bottomofcabinet
(Côtécanalisation)
Side(Côté)
5/8in(15.8mm)
6in(15.2cm)
6in(15.2cm)
2in(50.8mm)
12in(30.4cm)
5/8in(15.8mm)
6in(15.2cm)
2in(50.8mm)
1/2in(12.7mm)
12in(30.4cm)
IntellihotGreenTechnologiesInc.
2900W.MainSt.
Galesburg,IL61401
Phone:[phone]
Email:[e-mail]
Web:www.intellihot.com
FactoryPreset
NaturalGas
(Réglageenusinepourgaznaturel)
199,000
20,000
13.0W.C.(3.20kPa)
8.0W.C.(2.00kPa)
8.0W.C.(2.00kPa)
150psi(1034kPa)
15psi(103kPa)
265GPH(1003LPH)
Upto98%/0.94
Lessthan20ppm
FieldConversion*to
PropaneGas
(Conversion*surplaceaugazpropane)
199,000
20,000
10.5W.C.(2.62kPa)
3.0W.C.(0.76kPa)
11.0W.C.(2.74kPa)
150psi(1034kPa)
15psi(103kPa)
265GPH(1003LPH)
Upto98%/0.94
Lessthan20ppm
CheckBoxif
Convertedto
PropaneGas
*RefertoInstallationandOperation
manualforconversionprocedure.
(Seréféreraumanueld'installationet
defonctionnementpourlaprocédurede
conversion.)
PRÉRÉGLAGESD'USINEPOURUTILISATIONAVEC
GAZNATUREL
(Pressiondegazd'arrivéemaximum)
(Pressiond'eaumaximum)
(Pressiond'eauminimum)
(Caractéristiquederecouvrement)
(Efficacitéthermique/Facteurénergétique)
(ÉmissionsdeNOx)
(Pressiondegazd'arrivéeminimum)
(Pressiondegazd'arrivéeminimum(pourajustements))
Cocherlacasesiconvertiaugazpropane
ETLSTICKER
SerialNumber:
IGT-LBL-0005-01
(Numérodesérie)
(CollantETL)
To avoid product damage, personal injury, or
evenpossible death,carefully read, understand,
and followall the instructionsintheInstallation
and Operation manuals beforeinstallingthis
product. Improper installation,adjustment,alteration, or
maintenance cancause injury,lossoflife, and/or property
damage. This waterheatershould be installed and
serviced by a qualied technician. The lackof proper
service can result in adangerouscondition.
This manual contains safety information, installation
instructions, and maintenance procedures. It must be left
with the homeowner orplacednear the water heater in
a noncombustible place.The customer should retain this
manual for future reference.
WARNING
Iftheinformationin these instructionsis not followed
exactly,afire or explosioncould resultcausing
propertydamage,personal injury,ordeath.
— Donotstore or use gasoline or other flammable
vapors and liquids in the vicinityofthisor any
otherappliance.
WHATTODO IFYOU SMELL GAS
•
Donottryto light anyappliance.
•
Donottouchanyelectricalswitch; do not use
anyphonein your building.
•
Immediately call your gas supplier from a
neighbor’s phone. Followthe gas supplier’s
instructions.
•
Ifyou cannot reach your gas supplier, call the
firedepartment.
— Installation and service must be performed by
aqualified installer, service agency,or thegas
supplier.
Installation
Manual
Model: i200X
i250X
Smar
—Ne pas entreposerni utiliser d’essence ou
ni d’autres vapeursou liquides inflammables
à proximité de cet appareil oude toutautre
appareil.
QUEFAIRESI VOUSSENTEZUNEODEURDE GAZ
•
Nepas tenter d’allumer d’appareil.
•
Ne touchezà aucun i
nterrupteur; ne pas vous
servirdestéléphones se trouvant dans
lebâtiment.
•
Appelezimmédiatementvotre fournisseurde gaz
depuis unvoisin. Suivez lesinstructions
dufournisseur.
•
Sivousne pouvez rejoindre le fournisseur,
appelezle service des incendies.
—L’installation etl’entretien doivent être assurés
paruninstallateurouun service d’entretien
qualifiéouparle fournisseur de gaz.
AVERTISSEMENT
Assurez-vousde bien suivre les instructions données
danscette notice pourréduireau minimum le
risque d’incendieoud’ex plosionoupouréviter tout
dommagematériel,toute blessureou lamort.
IntellihotDirect Vent Boiler/Combination Water
heater. This product complies withANSI Z21.13-
(2010) /CSA 4.9 Low PressureBoiler and with
ANSIZ21.10.3 (2011) /CSA 4.3 Gas Water Heater. For
use aspotable water heatingand space heating.
4
WARNING
Condensate drain line (2) is shipped from the factory with a
loop held together with plastic ties. Do not remove the ties
and/or straighten the loop. This loop forms an air block
(trap) which prevents carbon monoxide from exiting the
water heater through the drain line. Improper installation of
the drain line can result in excessive levels of carbon
monoxide, which can lead to severe personal injury or death.
1.1.1 Optional Items
An optional outdoor sensor can be purchased separately
1.2 Contact Information
Call us first if you have any questions about this product. We
can help you with questions about installation or operation,
or if there are damaged or missing parts when you unpack
this unit from the shipping box.
Stamp or write your dealer contact information here for future
reference.
Due to our policy of continuous product improvement and
technology, the design and/or technical specifications are
subject to change without notice.
Serial Number: ___________________________________
Date of Installation: ___ / ___ / ______
1.3 Serial Number Plate Locations
Each unit’s heat exchanger module has its own ASME
certification plate (1). Rating plate (2) contains serial number
for the unit. Please provide this serial number when calling
for service or warranty.
Rating andsafety information inside.
(Caractéristiqueset renseignements de sécuritéà l'intérieur)
FACTORYPRESET FOR USEWITH
NATURAL GAS
Direct-Vent Automatic Instantaneous Water Heater
(Chauffe-eauautomatique instantané à ventilation directe)
FOR INDOOR INSTALLATION ONLY
(POURINSTALLATION À L'INTÉRIEUR SEULEMENT)
120 Volt,60 Hz, 5 Amps
Typeof Gas
(Typede gaz)
:
. . . . . . . . . . . . . . . .
InputRating
(Entrerle Classement)
: Btu/hr Maximum . . .
Btu/hr Minimum . . .
Maximum Inlet Gas Pressure: . . . . . . . . . . . .
Minimum Inlet Gas Pressure: . . . . . . . . . . . .
Minimum Inlet Gas Pressure (for adjustments): . .
Maximum WaterPressure: . . . . . . . . . . . . .
Minimum WaterPressure: . . . . . . . . . . . . .
Recovery Rating: . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . .
Thermal Effi
ciency/ :
Energy Factor:
NOx Emissions:
. . . . . . . .
(Pursuantto South Coast Air Quality Management District Rule 1146.2)
(Moinsde 20 ppm)
(Jusqu'à98 % / 0.94) (Jusqu'à 98 % / 0.94)
(Moinsde 20 ppm)
(Dégagementsminimums)
(Desnon-combustibles) (D'une construction
combustible)
(conformémentau règlement 1146.2 du "South Coast Air Quality Management District)
Topof heater
Minimum Clearances
From
Non-Combustibles
FromCombustible
Construction
(Dessusdu chauffe-eau)
Backof heater
(Arrièredu chauffe-eau)
Frontof heater
(Avantduchauffe-eau)
Bottomof cabinet
(Côtécanalisation)
Side(Côté)
5/8in (15.8 mm)
6in (15.2 cm)
6in (15.2 cm)
2in (50.8 mm)
12in (30.4 cm)
5/8in (15.8 mm)
6in (15.2 cm)
2in (50.8 mm)
1/2in (12.7 mm)
12in (30.4 cm)
Intellihot Green Technologies Inc.
2900 W. Main St.
Galesburg, IL 61401
Phone:[phone]
Email: [e-mail]
Web: www.intellihot.com
Factory Preset
Natural Gas
(Réglageen usine pour gaz naturel)
199,000
20,000
13.0 W.C.(3.20 kPa)
8.0 W.C.(2.00 kPa)
8.0 W.C.(2.00 kPa)
150 psi (1034 kPa)
15 psi (103 kPa)
265 GPH(1003 LPH)
Up to 98% / 0.94
Less than 20 ppm
Field Conversion* to
Propane Gas
(Conversion*sur place au gaz propane)
199,000
20,000
10.5 W.C.(2.62 kPa)
3.0 W.C.(0.76 kPa)
11.0 W.C.(2.74 kPa)
150 psi (1034 kPa)
15 psi (103 kPa)
265 GPH (1003 LPH)
Up to 98% / 0.94
Less than 20 ppm
Check Box if
Convertedto
PropaneGas
*Referto Installation and Operation
manualforconversionprocedure.
(Seréférerau manuel d'installation et
defonctionnement pour la procédure de
conversion.)
PRÉRÉGLAGESD'USINE POUR UTILISATIONAVEC
GAZNATUREL
(Pressionde gaz d'arrivée maximum)
(Pressiond'eau maximum)
(Pressiond'eau minimum)
(Caractéristiquede recouvrement)
(Efficacitéthermique / Facteur énergétique)
(Émissionsde NOx)
(Pressiondegaz d'arrivée minimum)
(Pressionde gaz d'arrivée minimum (pour ajustements))
Cocherla case si converti au gaz propane
ETLSTICKER
Serial Number:
IGT-LBL-0005-01
(Numérode série)
(CollantETL)
2
1

5 Safety Section
2. Safety
2.1 Safety Signal Words
DANGER
Indicates an imminently hazardous situation which, if not
avoided, will result in death or serious injury. This signal
word is limited to the most extreme situations.
WARNING
Indicates a potentially hazardous situation which, if not
avoided, could result in death or serious injury.
CAUTION
Indicates a potentially hazardous situation which, if not
avoided, may result in minor or moderate injury.
NOTICE
Indicates that equipment or property damage can result if
instructions are not followed.
SAFETY
INSTRUCTIONS
Safety instructions (or equivalent) signs indicate specific
safety-related instructions or procedures.
Note: Contains additional information important to a
procedure.
2.2 Installation Warnings
WARNING
DO NOT use this water heater for any purpose other than
water heating.
Read, understand, and follow the Installation and Operation
manuals, including all warnings and precautions, before
operating this water heater. If you do not follow these
instructions exactly, a fire or explosion may result, causing
property damage, personal injury, or loss of life.
Follow all local codes and the most recent edition of the
National Fuel Gas Code (ANSI Z223.1/NFPA 54) in the USA or
the Natural Gas and Propane Installation Code in Canada
(CSA B149.1).
This water heater must be installed by a licensed plumber,
gas fitter, and/or professional service technician. Installation
by unqualified person(s) voids the warranty.
DANGER
A. This water heater does not have a pilot. It is equipped
with an ignition device which automatically lights the
burner. Do not try to light the burner manually.
B. BEFORE OPERATING, smell all around the water heater
area for gas. Be sure to smell next to the floor because
some gas is heavier than air and will settle on the floor.
WHAT TO DO IF YOU SMELL GAS:
• Do not try to light any appliance.
• Do not touch any electric switch; do not use any phone in
your building.
• Immediately call your gas supplier from a neighbor’s
phone. Follow the gas supplier’s instructions.
• If you cannot reach your gas supplier, call the fire or
police department.
C. Use only your hand to turn the manual gas shut-off
valve. Never use tools. If manual gas shut-off valve will
not turn by hand, don’t try to repair it. Call a qualified
service technician. Force or attempted repair may
result in a fire or explosion.
WARNING
DO NOT use or store flammable liquids around the water
heater, including gasoline, oils, spray paints, etc.
DO NOT operate this water heater unless it is properly
vented to the outside (the exhaust vent piping must be
connected from the unit directly to the outside). Improper
venting can cause a build-up of carbon monoxide, which
can result in brain damage or death. Exhaust gases must
be completely expelled out of the building.
This water heater is factory preset for NATURAL GAS but
may be field converted for use with propane. For propane
conversion, refer to the Propane (LPG) Conversion section
of this manual. Connecting the water heater to any other
gas supply can result in property damage, serious injury,
or even death.
This water heater is suitable for use in potable water
heating applications. The cold and hot water fittings on
the top of the water heater MUST NOT be connected to any
heating system.
The water heater temperature is factory set to 120°F
(49°C). Hot water temperatures above 125°F can cause
severe burns instantly or death from scalds. If the
proposed water heater outlet temperature is to be set
above 125°F, installation of a thermostatically controlled
(or temperature limiting) mixing valve is recommended for
all hot water going to faucets to avoid the risk of scalding.
Examples include commercial applications where 140°F
(60°C) is often needed or if the space heating temperature
required is higher than the domestic hot water. Always
check the temperature of the hot water before bathing,
showering, washing, etc.
Protect against snow and debris accumulation around the
vent terminations. Regularly inspect the exhaust vent
pipe and the air intake pipe to ensure they remain clear
from obstructions at all times.

Safety Section 6
CAUTION
Make sure you know the location of the gas shut-off valve
and how to operate it. Immediately close the gas shut-off
valve if the water heater is subjected to fire, overheating,
flood, physical damage, or any other damaging condition
that might affect the operation of the unit. Have the water
heater checked by a qualified technician before resuming
operation.
If the water quality is known to have high acidity and/or
high hardness, water treatment is recommended. Consult
the local water authority.
SAFETY
INSTRUCTIONS
DO NOT use this appliance if any part has been under
water.
DO NOT reverse the cold water and gas connections as this
will damage the gas valve.
DO NOT overtighten fittings as damage may occur, causing
internal leakage.
The appliance should be located in an area where leakage
within the unit or at its connections will not result in
damage to the surrounding area. The manufacturer will
not be responsible for any damage resulting from leaking
if adequate drainage is not provided.

7 Operation
3. Operation
3.1 Control Panel
Time
Mode
Enter
Power
GA
F
E
DC
B
3.2 Display Icons
KL
ST MNO
I
H
P
A) LCD screen
The LCD display screen shows all information about the
operating functions of the water heater.
B) Arrow keys
Press the UP or DOWN arrows to adjust the value of the
selected feature, such as time or water temperature.
C) Enter button
To return to the Main or Home screen.
D) Power button
When the water heater is initially connected to an electrical
power supply, the unit will automatically turn ON and the
display panel should light up. To turn the unit OFF, press
and hold the Power button and the water heater will go
through a shutdown process. The unit can then be turned
ON again, once the blower finishes its purge cycle (10
seconds) by pressing the Power button.
E) Time button
Press this button to set the hours and minutes on the clock.
F) Mode button
Press this button to access various Modes of Operation.
G) Orange button
Used to view real time flow and temperature readings.
H) Displays the current time in AM or PM.
I) CODE Display
Displays the CODE icon and the most recent digital error
code.
K) Error Icon
Indicates an error has been detected and a trouble code
may be shown next to the CODE icon.
L) Indicates water flow (open faucet).
M) Indicates blower is ON.
N) Indicates burner is ON.
O) Gas Consumption Icon
Indicates the level of energy usage. There are four “bar”
indicators and each represent 25% of gas usage.
P) Indicates outlet water temperature.
S) Freeze Indicator Icon
This icon indicates that the unit has detected potential
freezing conditions and will operate to keep the internal
component water temperature above the freezing limits.
T) Thermostat Icon
Indicates the unit has received a signal from the
thermostat calling for heat.

Operation 8
3.3 Turning Water Heater ON and OFF
1. When plugging in, the unit will show the four digit
software version. To turn the water heater ON press the
Power button. The screen will show INIT until initialized,
and the home screen will automatically display when the
unit is ready to use.
2. To turn the water heater OFF, press and hold the Power
button for three seconds and the display screen will show
OFF.
3.4 Resetting (Clear) Error Codes
1. To reset the water heater and clear all error codes, press
and release Power button.
3.5 Setting the Time
1. Press and release the Time button.
The minute section of the time display will flash.
2. Press the Up/Down arrows to set the correct minute.
3. Press and release the Time button again.
The hour section of the time display will flash.
4. Press the Up/Down arrows to set the correct hour. When
setting the hour, make sure you have correctly advanced
the time to either the AM or PM hour setting.
5. Press and release the Time button again.
The colon (:) between the hours and minutes should now
be flashing, indicating the time has been properly set.
3.6 Setting the Domestic Water Temperature
Note: The outlet water temperature is factory preset to 120°F.
WARNING
Hot water temperature over 125°F (52°C)
can cause severe burns instantly or death
from scalding. Children, the disabled, and
the elderly are at the highest risk of being
scalded. Do not leave children or the infirm
unsupervised. Check temperature of hot
water before taking a shower or bath. To
control water temperature to a particular faucet,
temperature limiting valves can be installed by your
service professional.
All water faucets must be closed before changing the
temperature setting. The unit must not be operating
(burner icon not on).
Press the Up/Down arrows to set the desired temperature
range from 100 to 140°F in one degree increments.

9 Operation
3.7 Setting Space Heating Temperature
Press and hold the Orange button. On the right-hand side
of the display the current temperature setting of the supply
water is shown. To change the supply water temperature
push the Up/Down arrow key, while continuing to hold the
orange button. The setting range for the supply water is
from 100°F to 170°F. However, the minimum space heating
set temperature is 20°F below the domestic hot water set
temperature.
3.8 Real Time Parameter Display
Press and release the Orange button. The left-hand side
of the display scrolls through the following parameters in
succession: After scrolling through the parameters three
times, the display returns to the main screen.
Flow Rate
The flow rate is indicated with FlO and actual flow rate
(3.5 GPM).
Actual Outside Air Temperature (if connected)
toAt and the actual outside air temperature, such as 65°F.
If -- is shown, this parameter is unavailable or sensor is not
connected..
Domestic Outlet Water Temperature
tout and the actual domestic hot water (DHW) outlet
temperature, such as 120°F
Heat Exchanger Temperature
tHE and the actual temperature of the heat exchanger, such
as 120°F.

Operation 10
Recirculation Temperature
trEC and the actual temperature of recirculation, such as 110°F.
Flue Temperature
FLUE and the actual temperature of flue, such as 110°F.
3.9 Error Screen
If an error occurs, the display will indicate an error code; E1, E3,
E7, etc. The flashing triangle will also appear in the upper left
corner of the display to indicate a potential problem with the
unit.
Refer to the Troubleshooting section for additional
information on the resolution of error codes.

11 Programming
4. Programming
4.1 Modes of Operation
The Modes of Operation screens provide set up screens and
additional information on the water heater. There are five
Mode of Operation screens which are used by the technician
during installation or maintenance of the water heater.
2. Follow the instructions in the specific section to enter the
desired settings.
4.1.2 Advanced Modes
1. Press and hold the Mode button for five seconds until
the rS screen appears. Now press and release the Mode
button multiple times until the desired screen shows on
the display.
rS - Burner Rate Ramp Setting
Ft - Fuel Type
FP - Flue Pipe Type
CO - Adjust CO2Level
2. Follow the instructions in the specific section to enter the
desired settings.
4.1.1 Standard Modes
1. Press and release the Mode button until the desired screen
shows on the display.
dC- Daisy Chain
PH - Performance History
IH - Setting Instant Hot Water Times
dE - Diagnostic Error
4.2 Viewing and Setting Modes of Operation
4.2.1 Daisy Chain Selection
1. See Manual Section 8 for detail on the Daisy Chain mode
of operation.

Programming 12
4.2.2 Performance History
The Performance History mode allows the
technician to view ignition cycles, number of ON
times, and cumulative water flow. The displayed
results are for all the water heater modules
combined within the unit.
Press the Mode button multiple times until the PH screen
appears.
The Flow-On Hours FH, Firing Counts FC, and Cumulative
Flow CF, will now begin to display for 1.5 seconds each. The
display will continue to cycle for 30 seconds and then return
to the home screen. Some examples are shown below.
Diagnostic Code FH (Flow-on hours)
shows one hour of flame. (To obtain
the total hours, multiply the number
by 10).
Diagnostic Code FC (Firing Count)
shows a flame count of 40,000. (To
obt ain the total number, multiply
the number by 1,000).
Diagnostic Code CF (Cumulative
Flow) shows 38,000 gallons of
water. (To obtain the usage in
gallons, multiply the number by
1,000).
Press and hold the Enter button for three seconds to return to
the home screen.
Note: If the Enter button is not pressed within 30 seconds of
inactivity, the display will return to the home screen.
4.2.3 Setting Instant Hot Water Times
This mode is used to set the times when the unit
will supply instant hot water.
This mode can only be accessed when Flame icon is
NOT showing on the display.
Push Mode button multiple times until IH appears on the
display.
The current setting will show in the time area of the display as
Auto, 24-7, Pat1, Pat2, Pat3, Pat4, or nonE.
The default setting is AUtO and the learned times will be
displayed.
Press the Up/Down arrows to toggle between the available
six patterns (Auto, 24-7, Pat1, Pat2, Pat3, Pat4, or nonE).
Once the desired pattern is selected, press and hold the Enter
button for three seconds to save the settings and return to
the home screen.
If the Enter button is not pressed within the 30 second time
limit, the setting will not be saved.

13 Programming
4.2.4 Diagnostic Code and Error Log Selection
This screen provides the technician with Diagnostic
Codes and Errors recorded as the water heater
operates. These codes are used in conjunction with
the Performance History Codes.
Error Code Description of Error Code
E1 Blower Speed Fault
E3 Blocked Flue Fault
E7 Ignition Failure
E9 Temperature Sensor Shorted
EA Temperature Sensor Open Circuit
EC Flue Temperature Exceeded Set Limit
Ed Heat Exchanger Outlet Temperature Exceeded
Set Limit
Flashing
Warning Icon Error Code and Unit Locked Out
Flashing
Recirculation
Icon
Pump Is Not Operating
* If Eb is displayed, please call the factory for service instructions.
Press and release the Mode button multiple times until the
dE screen appears.
The 01:E1 screen is the most recent code, while the 10:E3
is the last viewable screen. Refer the examples below for
further clarification.
Example of latest diagnostic code
Fan Speed Error Code E1.
Example of the last viewable code
Blocked Flue Fault Code E3.
Press and hold the Enter button for three seconds to return to
the home screen.
Note: If the Enter button is not pressed within 30 seconds of
inactivity, the display will return to the home screen.
4.2.5 Blower Ramp Selection
When exhaust harmonics are observed, i.e.
resonance at low fire, adjust the water heater using
the blower ramp setting (default is rat3). Increase
the rate number until the resonance is no longer
observed.
The Blower Ramp Selection has five different settings
(rat1 - rat5):
Press and hold the Mode button for five seconds to access
the rS screen on the display. The current setting will be
displayed.
Press the Up/Down arrows to select the Blower Ramp
Selection from five different settings (rat1 - rat5).
Select a ramp rate at which the harmonics disappears during
operation.
Press and hold the Enter button for three seconds to save the
settings and return to the home screen.
Note: If the Enter button is not pressed within 30 seconds of
inactivity, the display will return to the home screen.

Programming 14
4.2.6 Fuel Type Verification
The Fuel Type mode screen shows the selected fuel
type; natural gas (factory preset) or Propane.
Operation with natural gas is factory preset. Refer
to the Propane (LPG) Conversion section in this
manual for additional set up information.
Press and hold the Mode button for five seconds to access the
rS screen on the display.
Press and release the Mode button until the Ft screen appears
on the display. The current Fuel Type setting will appear (nAt
or PrOP) to indicate the position of DIP switch 3 on the circuit
boards. Fuel type cannot be changed from the screen.
To change fuel type from factory set natural gas to propane,
follow the Propane Conversion procedure in this manual.
Press and hold the Enter button for three seconds to return to
the home screen.
Note: If the Enter button is not pressed within 30 seconds of
inactivity, the display will return to the home screen.
4.2.7 Flue Pipe Selection (PVC or CPVC)
Changing this setting can only be done when the
Flame ON icon is not displayed.
WARNING
When the unit is set for CPVC or polypropylene pipe,
flue temperatures can reach 185°F. PVC pipe will
lose integrity at temperatures above 149°F. Make
sure FP setting and the type of material being used for the
flue are compatible.
Press and hold the Mode button until the rS screen appears.
Press the Mode button multiple times until the FP screen
appears. The current setting will be displayed.
The default setting for this mode is PVC.
Press the Up/Down arrows to select the desired setting of
either PUC or CPUC.
Note: The flue temperature for PVC material must not
exceed 149°F. The flue temperature for CPVC or
Polypropylene material must not exceed 185°F.
Press the Enter button to save the changes and return to the
main screen.
Note: If the Enter button is not pressed within 30 seconds of
inactivity, the display will return to the home screen.
4.2.8 Adjusting CO2Levels Selection
Refer to the Adjusting the CO2Level section in this
manual.

15 Maintenance Section
5. Maintenance
5.1 Cleaning the Inlet Water Strainer
All the water heaters are equipped with a sediment strainer
on the inlet water connection.
Initially, this strainer should be inspected and cleaned every
three months to establish a cleaning schedule.
IH-162
1. Turn off power and gas.
2. Position a container under the strainer on the water inlet
piping.
3. Close the water inlet and outlet valve (arrow) and remove
the cover plug. Allow the water to drain from the pipe.
IQ-045
Note: If a water shut-off valve was not installed, shut off the
main water supply valve at the water heater.
4. Remove the strainer screen, clean it, and reinstall it in the
housing.
IH-162a
5. Replace the strainer cover plug.
5.2 Draining the Water Heater
CAUTION
Hot water can cause burns to the skin. The water
temperature is factory set to 120°F (49°C). To avoid burns,
make sure the water heater is OFF and the power supply is
disconnected. The water heater will remain hot for some
time. Wait until the unit has completely cooled before
draining the water heater or performing any other
maintenance.
1. Press the Power button to turn OFF the water heater.
Disconnect the power.
2. Close the water supply inlet and outlet valves. Turn OFF
the gas supply.
IQ-046
3. Position a bucket or other container against the drain port.
4. Use an Allen wrench and remove drain plug (1).
IQ-111
1
5. When all the water has drained from the water heater,
replace the drain plug.

Maintenance Section 16
5.3 Filling the Water Heater
1. Open the water outlet supply valve. Slowly open the water
inlet supply valve.
2. Open the hot water faucet that is located farthest away
from the water heater. Once a steady stream of water
flows and all the air is purged from the system, close the
hot water faucet.
3. Connect the unit to the power supply.
4. Open a hot water faucet. The water heater should operate
normally.

17 Troubleshooting
6. Troubleshooting
6.1 Error Code Chart
Blower Speed Fault • Blower noisy / impeller jammed.
• Disconnected signal wire.
• Wiring faulty.
• Inspect blower / impeller. Clean and remove any
obstructions.
• Check PWN signal. Check for loose wires / pins, and
repair.
• Check PWN signal. Check for loose wires / pins, and
repair.
If the problem persists, turn control panel OFF, shut gas
valve, unplug unit, and contact an authorized service
technician.
Blocked Flue Fault • Exhaust blocked (bird, etc).
• Backed up condensate.
• Wiring loose (switch open).
• Check exhaust termination. Check exhaust
connection at water heater. Install screens.
• Check slope of drain. Check for double loops, air
locks, or debris in loop.
• Check wiring.
Ignition Failure • Water over-heat switch tripped.
• Faulty DSI, faulty igniter wire,
faulty ignition connection, faulty
PCB, bad igniter.
• Low gas pressure.
• Check pump, check cross over solenoid. Electrical
noise (dsi).
• Replace part.
• Adjust gas pressure at regulator, check / upsize gas
line, check for gas line blockage.
• If the problem persists, turn control panel OFF, shut
gas valve, unplug unit, and contact an authorized
service technician.
Temperature Sensor
Shorted
• Faulty sensor wiring
• Faulty sensor
• HE - heat exchanger water outlet
temperature sensor.
• FL - Flue temperature sensor.
• OA - outdoor air temperature
sensor.
• Faulty controller
• rE - Recirculation temperature
sensor.
• Ou - Domestic Hot water outlet
temperature sensor.
• Check for nicked or broken sensor wiring or
connectors. Also check for corroded or wet
connectors.
• Measure resistance of sensor at connector (18 Kohm
at 50°F, 10 Kohm at 77°F, 3 Kohm at 140°F)
• Replace controller

Troubleshooting 18
Temperature Sensor
Open Circuit
• Unplugged connectors
• Faulty sensor wiring
• Faulty sensor
• HE - heat exchanger water outlet
temperature sensor.
• FL - Flue temperature sensor.
• Faulty Controller
• rE - Recirculation temperature
sensor.
• Ou - Domestic Hot water outlet
temperature sensor.
• Check connectors and ensure they are securely
connected
• Check for nicked or broken sensor wiring or
connectors. Also check for corroded or wet
connectors
• Measure resistance of sensor at connector (18 Kohm
at 50°F, 10 Kohm at 77°F, 3 Kohm at 140°F)
• Replace controller
Flue Temperature
Exceeded Set Limit
• Incorrect vent set up
• High inlet temperature
• Faulty sensor wiring
• Faulty sensor
• Faulty Controller
• If vent pipe material is CPVC or Polypropylene, ensure
that CPVC is selected in the FP (Flue Pipe) mode.
• Ensure inlet temperature is lower than 150°F if vent
pipe material is PVC or lower than 190°F if vent pipe
material is CPVC or Polypropylene.
• Check for nicked or broken sensor wiring &
connectors. Also check for corroded or wet
connectors
• Measure resistance of sensor at connector (18 Kohm
at 50°F, 10 Kohm at 77°F, 3 Kohm at 140°F)
• Replace controller
Heat Exchanger Outlet
Temperature Exceeded
Set Limit
• Flow rate changes excessive
• Faulty sensor wiring
• Faulty sensor
• Faulty Controller
• Ensure the water flow rate does not change faster
than 2 GPM every 5 seconds
• Check for nicked or broken sensor wiring or
connectors. Also check for corroded or wet
connectors
• Measure resistance of sensor at connector (18 Kohm
at 50°F, 10 Kohm at 77°F, 3 Kohm at 140°F)
• Replace controller
Flashing Icon • Indicates an error code and unit
locked out
• Refer to the indicated error code (E1, E2, etc) for
resolution
Recirculation Icon
Flashing
• Pump inoperable
• Pump faulty & excessively hot
• Faulty Controller
• Plugged up solenoid valve
(P models)
• Solenoid valve faulty (P models)
• Jammed check valve
• Check pump wiring harness for loose connectors
• Replace pump
• Replace controller
• Clean lines and replace solenoid
• Replace solenoid valve
• Remove check valve access and ensure gate is free to
move
Init stays on display • Faulty time valve/wiring • Replace time valve/wiring
Heat Exchanger never
reaches set temperature
• Solenoid valve faulty • Check solenoid (SMC) valve and replace if necessary

19 Troubleshooting
6.2 Wiring Diagram Chart
RED LED
(BURNER ON)
GREEN LED
(POWER)
FUSE
FUSE
ON
FUEL SELECT
NG
LP
ON
OFF
OFF
CASCADING
CONNECTIONS
3-cord cable
IGNTER AND FLAME PROBE
BYBASS
SOLENOID
VALVE
PUMP
ONLY
BLOWER
HEATING SYSTEM PUMP TERMINAL
GROUND
NEUTRAL
LINE
GAS
VALVE
COLD WATER
INLET TEMP
WATER CONTROL VALVE
AND FLOW SENSOR
OUTDOOR TEMPERATURE SENSOR
OUTLET TEMP
OUTLET TEMP
FLUE TEMP
TEMPERATURE
SENSORS
BOILER TT
AIR SWITCH
RD
RD
RD
RD
RD
WT
WT
WT
WT
BL
BN BN BN
BL
HIGH VOLTAGE CABLE
WT
GY
OR
GN
BL
GN
OR
GY
BL
BN
WT
OR
BL
YL
GN
YL
BL
GN
RD
BN
BN
BL
F
THERMAL
FUSE
F
THERMAL
FUSE
RD
BN
BN
RD
WT
TRANSFORMER
WIRE COLOR CODE
BL
BLUE
BN
BROWN
GN
GREEN
GY
GRAY
OR
ORANGE
RD
RED
WT
WHITE
YL
YELLOW

Troubleshooting 20
6.3 Operational Diagram
IH-156
Is
Program
time or
Thermostat
On?
?
?
?
?
?
?
?