Intellihot IQ250D Hoja de especificaciones

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 Efﬁciency / :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)

(conformémentau 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)

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: (877) 835- 1705

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)

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 and

Installation

Manual

Model: iQ250D

This product complies with ANSIZ21.10.3

(2011) / CSA 4.3 Gas Water Heater. For use as

portable water 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

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. Technical Data

3.1 Specications Chart . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

3.2 High Elevation Installations. . . . . . . . . . . . . . . . . . . . . 7

3.3 Dimensional Specications . . . . . . . . . . . . . . . . . . . . . 8

3.4 Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

4. Preparation Before Installation

4.1 Selecting an Installation Site. . . . . . . . . . . . . . . . . . . 10

5. Wall Mounting

5.1 Clearance Requirements. . . . . . . . . . . . . . . . . . . . . . . 11

5.2 Mounting the Unit to the Wall . . . . . . . . . . . . . . . . . 11

6. Gas Connections

6.1 Installation Guidelines. . . . . . . . . . . . . . . . . . . . . . . . . 12

6.2 Excess Flow Valve (EFV). . . . . . . . . . . . . . . . . . . . . . . . 12

6.3 Gas Pipe Sizing Tables . . . . . . . . . . . . . . . . . . . . . . . . . 13

6.4 Gas Pressure Regulator . . . . . . . . . . . . . . . . . . . . . . . . 14

6.5 Venting of Gas Supply Regulators. . . . . . . . . . . . . . 14

7. Venting and Materials

7.1 Venting Guidelines . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

7.2 Exhaust Vent Materials . . . . . . . . . . . . . . . . . . . . . . . . 15

7.3 Air Intake Vent Materials. . . . . . . . . . . . . . . . . . . . . . . 15

7.4 Venting Congurations. . . . . . . . . . . . . . . . . . . . . . . . 16

7.5 Two Pipe Vent System (Direct Vent) . . . . . . . . . . . . 16

7.6 Venting Termination. . . . . . . . . . . . . . . . . . . . . . . . . . . 19

7.7 Venting Clearance Specications . . . . . . . . . . . . . . 21

7.8 Common Venting for Multiple Units. . . . . . . . . . . . 22

8. Water Connections

8.1 Water Line Connection Guidelines . . . . . . . . . . . . . 26

8.2 Water Quality . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26

8.3 Hot Water Side Connection . . . . . . . . . . . . . . . . . . . . 26

8.4 Cold Water Side Connection . . . . . . . . . . . . . . . . . . . 27

8.5 Condensate Line Installation. . . . . . . . . . . . . . . . . . . 27

8.6 External Recirculation Options. . . . . . . . . . . . . . . . . 28

9. Electrical

9.1 Electrical Code Requirements. . . . . . . . . . . . . . . . . . 30

9.2 Electrical Connection and Polarity . . . . . . . . . . . . . 30

10. Propane (LPG) Conversion

10.1 General Information. . . . . . . . . . . . . . . . . . . . . . . . . . . 31

10.2 Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31

11. Adjusting CO2Level

11.1 General Information. . . . . . . . . . . . . . . . . . . . . . . . . . . 32

11.2 Procedure. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32

12. Operation

12.1 Control Panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34

12.2 Display Icons. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34

12.3 Turning Water Heater ON and OFF . . . . . . . . . . . . . 35

12.4 Resetting (Clear) Error Codes . . . . . . . . . . . . . . . . . . 35

12.5 Setting the Time . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35

12.6 Adjusting the Water Temperature . . . . . . . . . . . . . . 35

12.7 Real Time Temperature and Flow of the System 36

12.8 Error Screen. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36

13. Programming

13.1 Modes of Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . 37

13.2 Viewing and Setting Modes of Operation . . . . . . 37

14. Maintenance

14.1 Draining the Water Heater . . . . . . . . . . . . . . . . . . . . . 42

14.2 Filling the Water Heater . . . . . . . . . . . . . . . . . . . . . . . 42

14.3 Descaling the Unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42

15. Troubleshooting

15.1 Error Code Chart . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43

15.2 Wiring Diagram Chart . . . . . . . . . . . . . . . . . . . . . . . . . 45

15.3 Operational Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . 46

16. Serviceable Parts

16.1 Electrical Components . . . . . . . . . . . . . . . . . . . . . . . . 47

16.2 Water Lines and Fittings . . . . . . . . . . . . . . . . . . . . . . . 48

16.3 Blower, Gas Valve, and Exhaust. . . . . . . . . . . . . . . . . 49

16.4 Ignition Components. . . . . . . . . . . . . . . . . . . . . . . . . . 50

17. Requirements for State of Massachusetts . . .51

18. Warranty. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .52

19. Product Warranty Card. . . . . . . . . . . . . . . . . . . . .55

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), and Operation and Installation manual (4).

Note: Items 5 through 8 are spare parts shipped with the

unit. Two buss fuses, 10 Amp (5), electrode seal (6),

O-rings #015 (7), and face seals (8).

IQ-007

SPARES

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

maintenancecan cause injury,lossof life, and/or property

damage.Thiswater heater should be installed and serviced

ed 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 homeowner should retain this

manual for future reference.

WARNING

Ifthe information in these instructions is not followed

exactly, afireor explosioncould resultcausing

propertydamage, personal injury, or death.

—

Donot store or use gasoline or other flammable

vaporsand liquids in the vicinity of this or any

otherappliance.

WHATTO DO IF YOU SMELL GAS

•

Donot try to light any appliance.

•

Do not touch any electrical switch; do not use

anyphone in your building.

•

Immediately call your gas supplier from a

neighbor’s phone. Follow the gas supplier’s

instructions.

•

Ifyou cannot reach your gas supplier, call the

firedepartment.

—

Installationand service must be performed by

aqualifiedinstaller, service agency, or the gas

supplier.

— Ne pas entreposer ni utiliser d’essence ou

ni d’autres vapeurs ou liquides inflammables

àproximité de cet appareil ou de tout autre

appareil.

QUEFAIRE SI VOUS SENTEZ UNE ODEUR DE GAZ

•

Nepas tenter d’allumer d’appareil.

•

Ne touchez àaucun interrupteur; ne pas vous

servir des téléphones se trouvant dans

lebâtiment.

•

Appelezimmédiatement votre fournisseur de gaz

depuis un voisin. Suivez les instructions

dufournisseur.

•

Sivous ne pouvez rejoindre le fournisseur,

appelezle service des incendies.

— L’installation et l’entretien doivent être assurés

parun installateur ou un service d’entretien

qualifiéou par le fournisseur de gaz.

AVERTISSEMENT

Assurez-vousde bien suivre les instructions données

dans cette notice pour réduire au minimum le

risqued’incendie ou d’explosion ou pour éviter tout

dommagematériel, toute blessure ou la mort.

FACTORYPRESETFORUSEWITH

NATURAL GA S

Direct-VentAutomaticInstantaneousWater Heater

(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)

(conformémentaurèglement1146.2 du"South Coast Air Quality Management 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)

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:(877)835-1705

Email:info@intellihot.com

Web:www.intellihot.com

FactoryPreset

NaturalGas

(Réglageenusinepourgaznaturel)

199,000

20,000

13.0W.C.(3.20kPa)

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)

Operation and

Installation

Manual

Model: iQ250

This product complies with ANSIZ21.10.3

(2011) /CSA 4.3 Gas Water Heater. For use as

portable water heating.

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.

1.2 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.

Dealer Contact Information

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 and safety information inside.

(Caractéristiqueset renseignements de sécurité à l'intérieur)

FACTORY PRESET FOR USE WITH

NATURAL GAS

Direct-Vent Automatic Instantaneous Water Heater

(Chauffe-eauautomatique instantané à ventilation directe)

FOR INDOOR INSTALLATIONONLY

(POURINSTALLATION À L'INTÉRIEUR SEULEMENT)

120 Volt,60 Hz, 5 Amps

Type of Gas

(Typede gaz)

. . . . . . . . . . . . . . . .

Input Rating

(Entrerle 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:

. . . . . . . .

(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'uneconstruction

combustible)

(conformément au 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)

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 TechnologiesInc.

2900 W. Main St.

Galesburg, IL 61401

Phone: (877) 835- 1705

Email: [email protected]

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)

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

manualfor conversion procedure.

(Seréférer au manuel d'installation et

defonctionnement pour la procédure de

conversion.)

PRÉRÉGLAGESD'USINE POUR UTILISATION AVEC

GAZ NATUREL

(Pressionde gaz d'arrivée maximum)

(Pressiond'eau maximum)

(Pressiond'eau minimum)

(Caractéristiquede recouvrement)

(Efficacitéthermique / Facteur énergétique)

(Émissionsde NOx)

(Pressionde gaz d'arrivée minimum)

(Pressionde gaz d'arrivée minimum (pour ajustements))

Cocherla case si converti au gaz propane

ETL STICKER

Serial Number:

IGT-LBL-0005-01

(Numérode série)

(CollantETL)

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.

3. Technical Data

3.1 Specifications Chart

Technical Data iQ250D

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Safety

Flame Rod, Thermal Fuse, Overheat Prevention Device, Fan Speed Monitor,

Flue Temperature Monitor, Blocked Vent Detector, Water Shut-Off Valve,

2X10A Fuse, Dual Flame Sensing, Flue Damper

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Performance iQ25

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Commercial Warranty Heat Exchanger Coil - 6 years, Parts – 1 year

Note: Due to continuous product improvements, the design and technical specifications are subject to change without notice

3.2 High Elevation Installations

For operation at elevations above 2,000 feet, the hot water

delivery capacity should be reduced by 4% for each 1,000 feet

above sea level.

3.3 Dimensional Specifications

26"

FRONT VIEW

BOTTOM MOUNTING

BRACKET

SIDE VIEW

POWER CORD

CONDENSATE DRAIN

TOP VIEW

HOT WATER OUT

COLD WATER IN

FRESH AIR INTAKE 3"

EXHAUST PORT 3"

GAS INLET

3/4 NPT

BOTTOM VIEW

POWER CORD

CONDENSATE DRAIN

MOUNTING WALL SURFACE

3/4 NPT (STAINLESS)

3.4 Connections

Item Description Specification1

1 Hot Water Outlet Connection 3/4” Male NPT

2 Exhaust Gas Vent 3” O.D.

3 Gas Supply Inlet Connection 3/4” Male NPT

4 Gas Pressure Analyzer Port 1/8” Female NPT

5 Fresh Air Intake 3” O.D.

6 Access Ports for Blower Mounting

Screws

—

7 Hot Water Supply Inlet Connection 3/4” Male NPT

8 Power Supply —

9 Condensate Drain Connection 3/4” Nipple (3/4” flex hose)

1Using sizes other than specied can cause damage to the water

heater and will void the warranty.

IQ-012a

IQ-009a

120 Volt

Minimum 10 Amp

Circuit Breaker

Required

Condensate

Drain

Installation Preparation 10

4. Preparation Before Installation

4.1 Selecting an Installation Site

Note: When installing the water heater, follow all local

building codes and the current edition of the National

Fuel Gas Code (ANSI Z223.1/NFPA 54) in the USA, or

National Gas and Propane Installation Code (CAN/CGA

B149.1) in Canada when installing this product.

Note: For water heater installations in Massachusetts, the

unit must be installed by a plumber or gas-fitter

licensed within the Commonwealth of Massachusetts.

Refer to the Requirements for the State of

Massachusetts section in this manual for additional

information.

1. Select an interior location for the installation. Each

installation is unique; therefore, take the time to find the

best location for the water heater.

a. Install the water heater near locations that use hot

water, such as bathroom, kitchen, or laundry room

faucets.

b. Select a location that minimizes the length of the water

pipe.

c. If the distances are long or if the faucet or appliance

requires “instant” hot water, we recommend running

a recirculation line back to the water heater from the

farthest fixture.

d. Insulate the hot water supply and recirculation lines.

e. Select a location away from foot traffic and away from

areas where dust, debris, chemical agents, or other

combustible materials could accumulate.

f. Allow sufficient space for service and maintenance

access to all gas, water, and drain connections.

g. Make sure the location meets all building code

requirements.

h. Make sure the wall surface that the water heater is

mounted on will support the weight of the unit

(90 lbs. minimum).

2. Minimize the distance that the exhaust gas vent and fresh

air intake must travel to an exterior wall.

a. The exhaust vent outlet must not be located next

to a walkway, near soffit vents, crawl space vents,

or other areas where condensate (water vapor)

could cause damage or create a hazard. Refer to the

Venting Clearance Specications section for additional

information.

b. The fresh air inlet vent must be located at least 12”

from the exhaust vent.

c. Contaminated or dirty air drawn into the intake pipe

can damage the water heater. The warranty does not

cover damage caused by airborne contaminants.

3. Locate the unit close to a drain and near gas and water

connections.

The water heater produces a significant amount of

condensate during normal operation and should be

located near a suitable drain where damage from a

possible leak will be minimal. Installing the water heater

in a location without a drain will void the warranty

and the manufacturer will not be responsible for any

resulting water damages that may occur. For additional

information, refer to the Condensate Line Installation

section.

4. Locate the water heater and all the water pipes in an area

where the ambient temperature always remains above

freezing.

a. When the water heater is connected to an electrical

power supply, it will automatically prevent the water

from freezing inside the unit.

b. The unit’s freeze protection system will not prevent the

water in surrounding pipes from freezing.

NOTICE

In cold climates, if there is a power failure, the unit’s freeze

protection system will not operate and can result in water freezing

inside the heat exchanger. To prevent damage to the water

heater, turn OFF the gas supply and inlet water valve. Completely

drain the unit. Damage caused by freezing water is not covered

by the warranty.

5. Select an appropriate location for the combustion air and

exhaust pipes to exit the building, as shown in the Venting

Clearance Specications section in this manual.

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