Intellihot i200, i250, i250P Operation And Installation Manual

Smart. Efficient. Endless

Operation and

Installation

Manual

Model: i200, i250 i200P, i250P

This product complies with ANSIZ21.10.3 (2011) / CSA

4.3 Gas Water Heater. For use as potable water heating.

The Energy Star rating applies only to the i200 and i200P models.

Certified to

NSF/ANSI 372

ciency

Recovery Rating:

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

(Caractéristique de recouvrement)

Thermal Effi

(Efficacité thermique / Facteur énergétique)

(D'une construction combustible)

NOx Emissions:

(Émissions de NOx)

Minimum Clearances

6 in (15.2 cm)

Serial Number:

(Numéro de série)

(Pursuant to South Coast Non-Combustibles

(Des non-combustibles)

2 in (50.8 mm)

5/8 in (15.8 mm)

5/8 in (15.8 mm)

6 in (15.2 cm)

2 in (50.8 mm)

Top of heater

(Dessus du chauffe-eau)

Back of heater

(Arrière du chauffe-eau)

Front of heater

(Côté)

Side

Bottom of cabinet

(Côté canalisation)

6 in (15.2 cm)

1/2 in (12.7 mm)

12 in (30.4 cm)

Phone:

Email:

We echnologies Inc

.intellihot.com

.

Box if

Check Gas

Converted to

Propane

Cocher la case si converti au gaz propane sion* to nv er te r

Field Co

Pr opane Gas

(Chauffe-eau automatique instantané à ventilation directe)

(Conversion* sur place au gaz propane)

Wat er Hea y Pr eset

20,00 C. (2.62 kPa)

W.

10.5

.C. (0.76 kPa)

3.0 W

W.

.0

11

C. (2.74 kPa)

CT

FA

PRÉRÉGLAGES D'USINE POUR UTILISATION AVEC

L

TION ONL

N

Na

(Réglage en usine pour gaz naturel)

OR

Y PRESET FOR USE WITH

Y tic Instantaneous

199,000

GAZ NA

ATURAL GAS

TURE s ent Automa

Dir ect-V

Amp

: . . . . . . . . . . . . . . . . 8.0

(Type de gaz)

120 V

Ty pe of Gas

(Entrer le Classement)

: Btu/hr Maximu

Btu/hr Minimum . . .

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

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

8.0

.C. (3.20 kPa)

C. (2.00 kPa)

W.

C. (2.00 kPa)

W.

150 psi (1034 kPa)

15 psi (103 kPa)

Input Rating

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

Maximum Inlet Gas Pressure:

(Pression de gaz d'arrivée maximum) . . . . . . . . . . . . .

Minimum Inlet Gas Pressure: ter Pressure:

Wa

. . . . . . . .

265 GPH (1003 LPH)

Up to 98% / 0.94

(Jusqu'à 98 % / 0.94)

Less than 20 ppm

(Moins de 20 ppm)

Wa

Maximum ter Pressure:

(Pression d'eau maximum)

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

146.2)

150 psi (1034 kPa)

15 psi (103 kPa)

265 GPH (1003 LPH)

Up to 98% / 0.94

(Jusqu'à 98 % / 0.94)



*Refer to Installation and Operation manual for conversion procedure.

(Se référer au manuel d'installation et de fonctionnement pour la procédure de conversion.)

ETL

STICKER

(Collant ETL)

IGT

-0005-01

WARNING

If the information in these instructions is not followed exactly, a fire or explosion could result causing property damage, personal injury, or death.

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.

— Do not store or use gasoline or other flammable vapors and liquids in the vicinity of this or any other appliance.

— 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.

WHAT TO DO IF YOU SMELL GAS

• 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.

QUE FAIRE SI VOUS SENTEZ UNE ODEUR DE GAZ

• 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.

• 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.

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.

Table of Contents

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

3.1 Specifi cations Chart . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

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

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

4. Preparation Before Installation

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

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

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

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

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

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

7.7 Venting Clearance Specifi cations . . . . . . . . . . . . . . 21

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

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 CO Level

2

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 . . . . . . . . . . . . . . 36

12.7 Real Time Temperature and Flow of the System 36

12.8 Flue and Domestic Water Temperature . . . . . . . . . 36

12.9 Error Screen. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37

13. Programming

13.1 Modes of Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . 38

13.2 Viewing and Setting Modes of Operation . . . . . . 38

14. Maintenance

14.1 Cleaning the Inlet Water Strainer. . . . . . . . . . . . . . . 44

14.2 Draining the Water Heater . . . . . . . . . . . . . . . . . . . . . 44

14.3 Filling the Water Heater . . . . . . . . . . . . . . . . . . . . . . . 45

15. Troubleshooting

15.1 Error Code Chart . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46

15.2 Wiring Diagram Chart . . . . . . . . . . . . . . . . . . . . . . . . . 48

15.3 Operational Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . 49

16. Serviceable Parts

16.1 Electrical Components (All Models) . . . . . . . . . . . . 50

16.2 i200 and i250 Water Lines and Fittings . . . . . . . . . 51

16.3 i200P and i250P Water Lines and Fittings . . . . . . . 52

16.4 Blower, Gas Valve, and Exhaust (All Models) . . . . 53

16.5 Ignition Components (All Models) . . . . . . . . . . . . . 54

17. Requirements for State of Massachusetts . . .55

18. Warranty. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .56

19. Product Warranty Card . . . . . . . . . . . . . . . . . . . . .59

3 i200, i250, i200P, i250P Installation and Operation

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 and Installation manual (4).

Note: Items 5 through 7 are spare parts shipped with the unit. Two buss fuses, 10 Amp (5), electrode seal (6), and O-rings (7).

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.

5

7

6

1

SPARES

2

3

4

Opera

Insta tion llati

Manua

Model: l

and on

This p

The E rodu nerg y St ar ra

i200 mplie

, i250

i25

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If the exac prop

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WA

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DO e ins losio al inju in th tructi n cou r dea e or e vic

IF Y

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, insta e wat

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, or tand g this

/or p d rope ust b n ion, o r ould

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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.

IQ-103

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.

Serial Number: ___________________________________

Date of Installation: ___ / ___ / ______

1.3 Serial Number Plate Locations

Rating plate contains serial number for the unit. Please provide this serial number when calling for service or warranty.

i200, i250, i200P, i250P General Information 4

Rating and safety infor

(Caractéristiques et r

Box if

Check Gas

Converted to

Propane

Cocher la case si converti au gaz propane nv er sion* to te r

Field Co

Pr opane Gas



199,000

0

FA

CT

Y PRESET FOR USE WITH

LY

(POUR INSTALLATION À L'INTÉRIEUR SEULEMENT) tic Instantaneous

TION ON . . .

199,000

20,000 C. (3.20 kPa)

W.

m

W at er Hea y Pr eset al Gas

Factor

Na tur


N

ATURAL GAS

GAZ NA ect-V

Dir

: . . . . . . . . . . . . . . . .

.C. (2.00 kPa)

8.0 W

.C. (2.00 kPa)

W

8.0

(Type de gaz)

: Btu/hr Maximu


20,00 C. (2.62 kPa)

W.

10.5

W.

C. (0.76 kPa)

3.0 C. (2.74 kPa)

W.

.0

11

150 psi (1034 kPa)

15 psi (103 kPa)

265 GPH (1003 LPH)

Up to 98% / 0.94

(Jusqu'à 98 % / 0.94) 120 V pe of Gas

Ty


. . . . . . . . . . . . 150 psi (1034 kPa)

. . . . . . . . . . . . 15 psi (103 kPa)



Input Rating 265 GPH (1003 LPH)

Minimum Inlet Gas Pressure:

(Pression de gaz d'arrivée minimum)

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

Up to 98% / 0.94

(Jusqu'à 98 % / 0.94)


(Pression de gaz d'arrivée maximum) . . . . . . . . . . . . . Less than 20 ppm


. . . . . . . .

(Pression de gaz d'arrivée minimum (pour ajustements))

Wa

Maximum ter Pressure:

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

(Pression d'eau maximum) 146.2)

Minimum

(Pression d'eau minimum)

ciency

Energy Factor:

/ :


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

(Caractéristique de recouvrement) From Combustible

Construction

Thermal Effi

Air Quality Management District Rule 1 combustible)

(Efficacité thermique / Facteur énergétique)

NOx Emissions:

(Émissions de NOx) (Dégagements minimums)

6 in (15.2 cm)

Serial Number:

(Numéro de série)


(Se référer au manuel d'installation et de fonctionnement pour la procédure de conversion.)

ETL

STICKER

(Collant ETL)

IGT

-LBL

-0005-01

(Pursuant to South Coast Non-Combustibles 5/8 in (15.8 mm)

(conformément au règlement 1146.2 du "South Coast Air Quality Management District)


6 in (15.2 cm)

2 in (50.8 mm)

Top of heater


Back of heater


Front of heater

(Côté)

5/8 in (15.8 mm)

6 in (15.2 cm)

1/2 in (12.7 mm)

12 in (30.4 cm)

2 in (50.8 mm)

12 in (30.4 cm) echnologies Inc

Intellihot Green T

2900 W. Main St.

(877) 835- 1705

Galesburg, IL 61401

.intellihot.com

Phone: www

Email: [email protected]

We b:

Side



2. Safety

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.

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

• 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

CAUTION

Indicates a potentially hazardous situation which, if not avoided, may result in minor or moderate injury.

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.

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.

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.

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.

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.

Safety Section 6

Parameter

Type

Fuel

Minimum / Maximum Input (Btu/h)

Thermal Efficiency

Energy factor

Dimensions H X W X D (inches)

Weight

Water and Gas connecons

Minmum Flow Rate

Venng Materials

Max 3” Vent Length - Single Pipe / Power Vent i200, i200P

200 , deduct 5 per 90° elbow i250, i250P

Indoor, Wall hung, Fully Condensing, direct igniton

Preset for NG / LP converble

30,000 / 199,950

94%

0.93

30,000 / 250,000

92%

N/A

26 X 17.4 X 14.9 (3.9 cu. )

"P" models - 98 lbs, Non "P" models - 93 lbs

3/4" NPT

"P" models - No min. flow / Non "P" models - 0.6 GPM

Sch. 40 PVC, Sch. 40 CPVC, Polypropylene, Stainless Steel

130 , deduct 5 per 90° elbow

Max 3” Vent Length - Two pipe / Direct Vent

Max 2” Vent Length - Single Pipe / Power Vent (2” not allowed at elevaons above 4,000 )

Max 2” Vent Length - Two Pipe / Direct Vent (2” not allowed at elevaons above 4,000)





N/A

Safety

Water Pressure Min / Max (PSI)

NG/LP- Minimum Stac Gas Pressure 1/2" black iron (non-corrugated)

NG/LP- Minimum Stac Gas Pressure 3/4" black iron (non-corrugated)

NG/LP - Maximum Stac Gas Pressure

Gas Pressure for Adjustments

Electrical

Power Consumpon

Features & Performance

Recirculaon

Cascading

Heat exchanger

Hot Water Capacity (35F Rise)



Domesc Hot Water Temp. Sengs

Warranty (with recirculaon)

Flame Rod, Thermal Fuse, Overheat Prevenon Device, Fan Speed Monitor, Flue Temperature

Monitor, Blocked Vent Detector, Water Shut Off Valve, 2X10A Fuse, Dual Flame Sensing

30 / 150

5" 6"

2.5"

14”

8" for NG, 11" for LP

120V AC, 60 Hz

500W (Max 4.2 Amps), 8W (Standby) i200 i250

Built-in pump for "P" models

Masterless, 10 units

Stainless 316L

10.8

8.4

13.2

10.3

5.0

6.0

100 – 185°F

Residenal - Heat Exchanger coil - 15 years, Parts – 5 years, Labor – 1 year

Commercial - Heat Exchanger coil – 6 years, Parts – 3 years, Labor – 1 year

Note: Due to Intellihot's Policy of continuous product improvements, 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.

7 i200, i250, i200P, i250P Technical Data

7

3

4

"

4

9

16

"

2

7

8

"

1

2

"

MOUNTING WALL SURFACE

14

7

8

"

14

5

16

"

1

5

8

"

26"

17

7

16

"

GAS INLET

3/4 NPT

EXHAUST PORT 3"

HOT WATER OUT

3/4 NPT

POWER CORD

CONDENSATE DRAIN

SIDE VIEW

14

7

16

"

8

7

8

"

2

3

4

" FRESH AIR INTAKE 3"

2

7

8

"

4

9

16

"

7

3

4

"

POWER CORD

6

9

16

"

2

7

8

"

COLD WATER IN

3/4 NPT

2

7

16

"

1"

2

15

16

"

13

1

2

"

TOP VIEW

BOTTEM MOUNTING

BRACKET

FRONT VIEW

3/4” DRAIN

CONDENSATE DRAIN

BOTTEM VIEW

i200, i250, i200P, i250P Technical Data 8

3.4 Connections

Item Description

1 Hot Water Outlet Connection

2 Exhaust Gas Vent

3 Gas Supply Inlet Connection

4 Gas Pressure Analyzer Port

5 Fresh Air Intake

6 Access Ports for Blower Mounting

Screws

Specification1

3/4” Male NPT

3” O.D.

3/4” Male NPT

1/8” Female NPT

3” O.D.

—

7 Water Inlet Strainer —

8 Cold Water Supply Inlet Connection 3/4” Male NPT

9 Power Supply

10 Condensate Drain Connection

11 3/4” Drain Connection

—

3/4” Nipple (3/4” flex hose)

3/4” Female NPT

1 Using sizes other than specifi ed can cause damage to the water heater and will void the warranty.

4

2

3

6

1

7

5

8

IQ-012

IQ-102

9

10

11

9 i200, i250, i200P, i250P Technical Data

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 Specifi 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 Specifi cations section in this manual.

Installation Preparation 10

In order for the water heater to operate properly and efficiently, the clearances specified in the table are required.

Side

Back

Top

IQ-013

Side

1

2

STUDS

Front

Bottom

IQ-043

Location

Top

Back 2

Sides

Front

Bottom

Required Mounting Clearances

From

Combustibles

From Non-

Combustibles

6” (15.2 cm)

5/8” (15.8 mm)

1” (25.4 mm)

2” (5.1 cm)

12” (30.4 cm)

2” (50.8 cm)

5/8” (15.8 mm)

1/2” (12.7 mm)

2” (5.1 cm)

12” (30.4 cm)

Service

Clearance1

12” (30.4 cm)

5/8” (15.8 mm)

5/8” (15.8 mm)

30” (76.2 cm)

12” (30.4 cm)

1 Service clearances are suggested to allow for normal service.

2 Mounting bracket automatically sets this dimension.

3

IQ-103

SAFETY

INSTRUCTIONS

Only the included brackets should be used to mount the unit. Water heaters weigh approximately 100 lbs., and must be securely attached to the wall.

5.2 Mounting the Unit to the Wall

All water heaters come with an upper mounting bracket with predrilled holes spaced on 16 inch centers to facilitate easy installation on standard wall studs.

If the strength of the wall is insufficient or if the framing is non-standard or uneven, reinforce the area using a sheet of plywood before installing the water heater.

Avoid installation on inside walls that can transmit operational noises to occupants while the unit is operating.

To mount the water heater to the wall:

1. Place the upper mounting bracket on the wall and ensure that it is level. Use two appropriately sized wood screws to mount the bracket securely to the studs. Ensure that it is affixed securely and can support the weight of the 100 pound unit.

CAUTION

According to the National Institute for Occupational Safety and Health, the recommended maximum safe lifting weight is 51 lbs., with all lifting conditions perfect; minimal forward reach, steady load close to the body, straight back, load between knees and shoulders, and good grips.

To avoid personal injury, always use these proper lifting techniques and use two people to move the water heater which weighs 100 lbs.

2. With assistance, hang the unit on the upper wall bracket, interlocking bracket (1) on the back of the unit, and wall bracket (2).

3. Install two appropriately sized wood screws in lower bracket (3) to secure the unit to the wall.

4. Make sure the unit is plumb and level, and tighten the four sheet metal screws on bottom bracket (3). When properly installed, there should be a 5/8” air space between the back of the water heater and the wall.

WARNING

To avoid serious injury or even death, the gas line installation and the gas line inlet pressure test must be done by a licensed professional.

The water heater is factory preset for natural gas.

Make sure the gas line pressures are within normal limits. Pressures outside normal limits can result in poor performance and hazardous operating conditions.

b. When multiple heaters are installed, some utilities and local codes require a full size drip leg on the main gas supply line in addition to the drip leg for each unit. c. The bottom of the gas drip leg should be removable without disassembling any gas piping. d. The gas pipe should not be supported by the bottom of the drip leg.

1. Determine if the unit will use natural gas (factory preset) or LP (propane) gas. To convert the unit to propane, refer to the Propane (LPG) Conversion section in this manual.

2. Ensure the gas supply pressure meets the requirements for the unit, as shown below.

Gas Pressures

NG/LP- Minimum Static Gas Pressure 1/2” black iron (non-corrugated)

NG/LP- Minimum Static Gas Pressure 3/4” black iron (non-corrugated)

NG/LP - Maximum Static Gas Pressure

Gas Pressure for Adjustments i200, i200P i250, i250P

5” 6”

2.5”

14”

8” for NG, 11” for LP iQ-014

3. Select the proper gas piping.

a. All gas piping and components must comply with

NFPA local codes and utility requirements. Only gas approved fittings, valves, or pipes should be utilized.

b. Assembled piping should be clean of all scale, debris, metal particles, or foreign material.

c. The piping must be supported by the floor, ceiling, or walls.

4. Make sure the pipe diameter for the length being used is correctly sized to meet maximum output of the water heater(s) being installed. a. The maximum gas flow rate required is the sum of the maximum inputs of each unit divided by the heat of combustion of the fuel supplied at the location (use

1,030 BTU per cubic foot for natural gas and 2,520 BTU per cubic foot for propane).

b. The fuel supplier or utility company should be consulted to confirm that sufficient volume and normal pressure is provided to the building at the discharge side of the gas meter or supply pipe.

c. Use the Gas Pipe Sizing tables in this manual or refer to the gas line manufacturer’s sizing information to determine the correct diameter for the supply pipe.

5. Make sure a drip leg is installed on the gas piping.

a. Drip legs are required at the gas supply of each water heater to prevent any dirt, condensation, or debris from entering the gas inlet.

Gas Connection 12

Note: Always clean the inside of the gas line of any dirt or debris before connecting the piping to the unit.

NOTICE

Do not start the water heater until all connections have been completed, leak-tested, and the heat exchanger is filled with water.

6.2 Excess Flow Valve (EFV)

If an excess flow valve (EFV) is installed in the gas line, check the manufacturer’s minimum and maximum flow capacity rating. An improperly sized EFV will not allow for the full flow of gas to the water heater and will cause the unit to malfunction.

6.3 Gas Pipe Sizing Tables

This information is for reference only. Refer to gas pipe manufacturer specifications for actual delivery capacity.

Contact the local gas supplier for actual BTU/ft 3 rating. This data copied from the National Fire Protection Association

Article 54 (NFPA 54).

Length

Including fittings

3⁄4"

Pipe Sizes and BTU/h Capacity (Natural Gas). Use this table for static gas pressure less than 5”

1" 1-1/4" 1-1/2"

50

60

70

80

10

20

30

40

360,000

247,000

199,000

-

-

-

-

-

678,000

466,000

374,000

320,000

284,000

257,000

237,000

220,000

1,390,000

957,000

768,000

657,000

583,000

528,000

486,000

452,000

2,090,000

1,430,000

1,150,000

985,000

873,000

791,000

728,000

677,000

90

100

125

150 -

-

-

207,000

-

-

-

424,000

400,000

355,000

322,000

635,000

600,000

532,000

482,000

175

200

-

-

-

-

296,000

275,000

443,000

412,000

Note: BTU/h capacities are based on specific gravity of 0.6, pressure drop of 0.5” WC

2"

4,020,000

2,760,000

2,220,000

1,900,000

1,680,000

1,520,000

1,400,000

1,300,000

1,220,000

1,160,000

1,020,000

928,000

854,000

794,000

2-1/2"

6,400,000

4,400,000

3,530,000

3,020,000

2,680,000

2,430,000

2,230,000

2,080,000

1,950,000

1,840,000

1,630,000

1,480,000

1,360,000

1,270,000

3"

11,300,000

7,780,000

6,250,000

5,350,000

4,740,000

4,290,000

3,950,000

3,670,000

3,450,000

3,260,000

2,890,000

2,610,000

2,410,000

2,240,000

4"

23,100,000

15,900,000

12,700,000

10,900,000

9,660,000

8,760,000

8,050,000

7,490,000

7,030,000

6,640,000

5,890,000

5,330,000

4,910,000

4,560,000

10

20

30

40

50

60

70

80

90

100

125

150

175

200

Length


Pipe Sizes and BTU/h Capacity (Natural Gas). Use this table for static gas pressure greater than 5”

1/2"

404,000

286,000

233,000

202,000

-

-

-

-

-

-

-

-

-

-

3⁄4"

949,000

652,000

524,000

448,000

397,000

360,000

331,000

308,000

289,000

273,000

242,000

219,000

202,000

-

1"

1,787,000

1,228,000

986,000

844,000

748,000

678,000

624,000

580,000

544,000

514,000

456,000

413,000

380,000

353,000

1-1/4"

3,669,000

2,522,000

2,025,000

1,733,000

1,536,000

1,392,000

1,280,000

1,191,000

1,118,000

1,056,000

936,000

848,000

780,000

726,000

1-1/2"

5,497,000

3,778,000

3,034,000

2,597,000

2,302,000

2,085,000

1,919,000

1,785,000

1,675,000

1,582,000

1,402,000

1,270,000

1,169,000

1,087,000

2"

10,588,000

7,277,000

5,844,000

5,001,000

4,433,000

4,016,000

3,695,000

3,437,000

3,225,000

3,046,000

2,700,000

2,446,000

2,251,000

2,094,000

2-1/2"

16,875,000

11,598,000

9,314,000

7,971,000

7,065,000

6,401,000

5,889,000

5,479,000

5,140,000

4,856,000

4,303,000

3,899,000

3,587,000

3,337,000

3"

29,832,000

20,503,000

16,465,000

14,092,000

12,489,000

11,316,000

10,411,000

9,685,000

9,087,000

8,584,000

7,608,000

6,893,000

6,342,000

5,900,000

4"

43,678,000

30,020,000

24,107,000

20,632,000

18,286,000

16,569,000

15,243,000

14,181,000

13,305,000

12,568,000

11,139,000

10,093,000

9,285,000

8,638,000

Note: For 1/2” line BTU/h capacities are based on specific gravity of 0.6, pressure drop of 4.6” WC and 5.0” WC. For all other line sizes, capacities are based on specific gravity of 0.6, pressure drop of 3.0” WC

10

20

30

40

50

60

80

100

125

150

Length


1/2"

409,000

289,000

236,000

204,000

-

-

-

-

-

-

Pipe sizes and BTU/h capacity (Propane). Use this table for static gas pressure greater than 5”

3⁄4"

608,000

418,000

336,000

287,000

255,000

231,000

212,000

-

-

-

1"

1,150,000

787,000

632,000

541,000

480,000

434,000

400,000

372,000

349,000

330,000

1-1/4"

2,350,000

1,620,000

1,300,000

1,110,000

985,000

892,000

821,000

763,000

716,000

677,000

1-1/2"

3,520,000

2,420,000

1,940,000

1,660,000

1,480,000

1,340,000

1,230,000

1,140,000

1,070,000

1,010,000

175

200

-

-

-

-

292,000

265,000

600,000

543,000

899,000

814,000

Note: The line BTU/h capacities are based on specific gravity of 1.5, pressure drop of 0.5” WC.

2"

6,790,000

4,660,000

3,750,000

3,210,000

2,840,000

2,570,000

2,370,000

2,200,000

2,070,000

1,950,000

1,730,000

1,570,000

2-1/2"

10,800,000

7,430,000

5,970,000

5,110,000

4,530,000

4,100,000

3,770,000

3,510,000

3,290,000

3,110,000

2,760,000

2,500,000

3"

19,100,000

13,100,000

10,600,000

9,030,000

8,000,000

7,250,000

6,670,000

6,210,000

5,820,000

5,500,000

4,880,000

4,420,000

4"

39,000,000

26,800,000

21,500,000

18,400,000

16,300,000

14,800,000

13,600,000

12,700,000

11,900,000

11,200,000

9,950,000

9,010,000

Depending on the gas inlet pressure at your location, it may be necessary to install a gas pressure regulator to lower gas pressures to an acceptable level. Please ensure that the gas pressure regulator has the same or higher minimum to maximum modulation range as the water heater model it is connected to. In the case of multiple units, it is recommended to use a dedicated gas pressure regulator for each unit.

Regulators should be mounted with a minimum of 12” of straight length pipe on either side.

6.5 Venting of Gas Supply Regulators

Below are the general guidelines for venting a gas regulator.

The manufacturer recommends these guidelines be followed to ensure reliable and proper operation of the water heater.

Local codes and the gas regulator manufacturer should also be consulted for additional installation information.

1. When venting the gas supply regulator, the vent pipe must be at least the same size as the regulator vent.

2. When multiple units are connected, each regulator must have a separate vent line.

3. Vent lines must not be connected together or connected with any other appliance requiring external venting.

4. When selecting the size, the pipe diameter must be increased by one size for every 20 feet of pipe.

5. Each 90° elbow is equivalent to approximately:

4.5 feet for nominal pipe sizes of up to 1-1/2”

10.5 feet for nominal pipe sizes of up to 4”

6. Each 45° elbow is equivalent to approximately:

2 feet for nominal pipe sizes of up to 1-1/2”

5 feet for nominal pipe sizes of up to 4”

Gas Connection 14

WARNING

Improper venting of the water heater can result in excessive levels of carbon monoxide, which can lead to severe personal injury or death. This water heater must be vented in accordance with the “Venting of Equipment “section of the latest edition of the ANSI Z223.1 / NFPA 54 (Natural

Fuel Gas Code) in the USA, or in Canada refer to the

“Venting Systems and Air Supply for Appliances” section in the latest version of CAN/CGA B149.1 (Natural Gas and

Propane Installation Code), and all applicable local building codes. Vent installation should be performed only by a licensed professional.

• This water heater must be properly vented to ensure there is a constant supply of clean intake air, and the exhaust is properly evacuated from the building. All seal connections should be airtight.

• The unit should be located as close to the vent termination, and the vents kept as short and straight as possible.

• Do not connect the water heater vent to a vent of any other non-water heater appliance.

• Combustion air may be drawn from the room where the unit is installed (single pipe/power vent) or directly from the outside (two pipe/direct vent).

• Ensure a sufficient supply of clean combustion air, free of any contaminants, such as dust, chemical fumes

(i.e. aerosols, chlorine, paint), grass, or other airborne contaminants. If necessary, purchase and install the appropriate air screens, and follow a regular cleaning program to ensure an adequate supply of clean combustion air.

• Do not operate the unit in an area that is or will be under construction or renovation.

• The warranty does not cover damage caused by contaminants in the installation area. If you must install the water heater in an area with contaminated air, use direct venting to supply the air from the outside of the building.

• All horizontal runs should be sloped upwards towards the vent termination at a rate of 1/4” per foot.

• To avoid moisture and frost build-up to openings on adjacent homes, use 45° elbows, 90° elbows, or tees for the vent termination to direct the exhaust fumes away from the building.

7.2 Exhaust Vent Materials

The materials listed in the table below outline the acceptable exhaust vent materials:

Material

Exhaust

Vent Pipe

United States Exhaust Vent Pipe Standards

Description*

PVC Schedule 40

CPVC Schedule 40, 80

Approved Polypropylene

AL294C Stainless Steel

Canadian Exhaust Vent Pipe Standards

Description (approved to ULC-S636)** Material

Exhaust

Vent Pipe

Type BH Special Gas Vent Class IIA (PVC)

Type BH Special Gas Vent Class IIB (CPVC)

Type BH Special Gas Vent Class IIC (Polypropylene)

Type BH Special Gas Vent Class I

(AL294C Stainless Steel)

*Note: Do not use cellular foam core pipe for the exhaust.

**Note: The components (pipe, fittings, primers, and glues) must be from a single manufacturer; do not interchange. Follow the vent manufacturer’s certified instructions.

This water heater has a built-in exhaust vent temperature control that limits the exhaust temperature to a maximum of

149°F (65°C).

If the temperature approaches the upper limit, the burner will turn off automatically to protect the vent pipe. As a result, this water heater can be vented with PVC pipe. Once the exhaust temperature has dropped to a normal operating level, the unit will automatically restart.

If the inlet/return water temperature will exceed 150°F

(66°C), do not use PVC venting. Refer to the Programming section for Flue Type Selection (PVC or CPVC) for additional information.

7.3 Air Intake Vent Materials

The air intake vent can be of any plastic or metal vent material available. ABS, PVC, Polypropylene, galvanized steel, and flexible corrugated ducting are all examples. If you are using a corrugated material, ensure there is no inadvertent crimping or blockage to the air intake pipe.

15 i200, i250, i200P, i250P Venting and Materials

Water heaters may be installed with: two pipes (direct vent) configuration or with one pipe (power vent) configuration.

7.5 Two Pipe Vent System (Direct Vent)

The water heater can be direct vented without any modification using a 3 inch diameter pipe.

The following diagrams represent some typical direct venting configurations and are included to assist in designing the vent system. Possible configurations are not limited to the following diagrams.

Intake

Air

Exhaust

Exhaust

Intake

Air

Exhaust

Intake

Air i200, i250, i200P, i250P Venting and Materials 16

7.5.1 Single Pipe Venting System (Power Vent)

When using the single exhaust pipe/power vent method, the following table outlines the required opening sizes for the combustion and ventilation air coming into the room:

Input

BTU/hr

199,950

250,000

Required Combustion & Ventilation Air Opening Sizes (sq. in) Per Heater Per Room:

Air is drawn directly from outside into the room

Air Type

Example #1 through two openings*, direct or vertical

Example #2 through one opening**

Example #3 through two horizontal ducts***

Combustion Air

Ventilation Air

Combustion Air

Ventilation Air

50

50

63

63

67

84

100

100

125

125

Example #4

Air is drawn from another interior space inside the building

*Where two openings are used, one must be within 12” of the fl oor and the other opening must be within 12” of the ceiling.

**Where one opening is required, it must be located within 12” of the ceiling. See illustration below.

67

67

84

84

Exhaust #1 Exhaust #2

Intake Air

Intake Air

Intake Air

Combustion Air Direct from Outside

2 Direct Openings or through Vertical Duct

1 sq. in. per 4000 btu/h

Exhaust #3

Intake Air

Combustion Air Direct from Outside

1 Direct Opening


Exhaust #4

Intake Air

Combustion Air Through Ducts

2 Openings through Horizontal Duct


Intake Air Intake Air

Combustion Air from Interior Space

2 Direct Openings or through Vertical Duct



The following illustrations represent some typical power venting configurations and are included to assist in designing the vent system. Possible configurations are not limited to these designs.

Intake Air

Exhaust

Intake Air

Exhaust

Intake

Air

Intake

Air

Exhaust i200, i250, i200P, i250P Venting and Materials 18

7.6.1 Side Wall Termination

1. Terminate the air intake with a 90° elbow (angled down).

Use a flange and PVC screen (not supplied).

2. Terminate the exhaust on the exterior wall at least 12” above ground and at least 12” away from the air intake, or as required by local building codes. In areas of high snow fall, protect the vent terminations from blockage. Use a flange and PVC guard.

12”

Venting the unit through the roof is also an option. With this installation method, the terminations must extend at least 12” over maximum potential snow levels, or as required by local building codes. In areas of high snow fall, protect the vent terminations from blockage.

Terminate the air intake with a 90° elbow (angled down). A suitable roof flashing and vent cap (not supplied) should be installed.

12” USA or

18” Canada over maximum snow level or as required by local code

3’ Minimum

12” Minimum

Exhaust

12” USA or

18” Canada over maximum snow level or as required by local code

Intake Air

IQ-020

Single unit.

See

Note A

IQ-021

Single unit.

Exhaust

Intake Air

Exhaust

See

Note A

Exhaust

Intake Air

IQ-020a

Multiple units.

Note A: The distance between any exhaust outlet and air intake should be between 18 and 36 inches or greater than 72 inches.

Intake Air

IQ-021a

Multiple units.



7.6.3 Concentric Venting Termination (Single Unit)

If desired, an optional concentric venting system, which uses one 5” opening through an exterior wall or roof, can be used, as opposed to cutting two 3” openings.

Follow all installation instructions included with the concentric vent kit when installing this type of vent system.

7.6.4 Concentric Venting Termination (Multiple

Units

In order to conform to some national codes, when two or more water heaters are installed they must be individually vented. When two or more units are vented near each other, each vent termination must be installed, as shown, to avoid recirculation of flue gases. A minimum distance of 18 inches must be maintained between each vent termination.

Follow all installation instructions included with the concentric vent kit when installing this type of vent system.

Intake

Air

Exhaust

1” MAXIMUM (TYP)

Exhaust

IQ-083

COMBUSTION AIR

Intake Air 1”

12” above

Highest anticipated snow level or grade.

IQ-022

Concentric Venting System Through a Side Wall.

Exhaust

Intake Air

12” USA or 18” Canada

Over maximum snow level or as required by local code

12” M

TO M

INUM

AXIM

ECT

UM

UM

ED

W LE

VEL

See

Note A

Multiple concentric units.


IQ-023 Exhaust

Concentric Venting System Through the Roof.

Intake Air i200, i250, i200P, i250P Venting and Materials 20

H

V

IQ-010

A

G D

E

B B

V

V

Operable

Fixed

Closed

B

B

V

X

Inside Corner

Detail

J

A

X Air Inside Inlet

V Vent Terminal

Area Where Terminal is Not Permitted

V

I

Fixed

Closed

Operable

Gas Meter/Regulator

C

B

V

V

F

L

V

B

M

V

X

K

Venting Clearance Specifications

Item

G

H

E

F

C

D

A

B

J

I

K

L

M

Description

Clearances above grade, veranda, porch, deck, or balcony

Clearances to window or door that may be opened

Clearances to permanently closed window

Vertical clearance to a ventilated soffit, eves, or overhang

Clearances to unventilated soffit, eves, or overhang

Clearances to outside corner

Clearances to inside corner

Clearances to each side of centerline extended from meter/regulator

Clearances to gas meter regulator vent outlet

Clearances to non-mechanical air supply inlet or combustion air inlet to any other appliance

Clearances to mechanical air supply inlet

Clearances to above paved sidewalk or paved driveway on public property

Clearances under veranda, porch, deck, or balcony

USA1

Clearance Distance

Canada2

1 foot

1 foot**

1 foot

3 feet

*

*

*

*

*

*

*

*

*

*

*

3 feet within a height

15 feet above meter/ regulator assembly

*

1 foot**

3 feet above if within

10 feet horizontally

*

*

3 feet

3 feet

6 feet

7 feet

1 foot

*Per local/gas supplier codes. Use clearances in accordance with local building codes and local gas supplier.

** For single vent pipe/direct 4 feet (1.2 m) below or to the side of opening and 1 foot above opening.

1 In accordance with Z223.1

2 In accordance with CSA B149.1


7.8 Common Venting for Multiple Units

Connecting several units together requires proper sizing of the intake and exhaust pipes. Up to ten water heaters can be connected (cascading) together.

7.8.1 Vent Diameter Sizing and Lengths

The water heaters are designed for 3 inch air intake and gas exhaust vents. The following chart outlines the maximum length of venting allowable for each model. A vent system’s length is calculated by adding the length of all straight pieces used (both horizontal and vertical) and then adding the equivalent lengths of each fitting used in the system. A vent system’s length must not exceed the maximum length outlined in the chart below:

1

i200 and i200P Maximum Vent Length (in feet) for

Power Vent (1 pipe)

Number of

Units common vented together

2”

26

3”

200

Duct Size

4”

200

6”

2

3

4

5

6

7

8

9

200

100 200

200

200

200

150

100

10

8”

200

200

200

Note: Reduce the maximum equivalent length above by 5 feet per 90° elbow used and by 2 feet per 45° elbow used.

Do not exceed the above set limits.


Direct Vent (2 pipe)

Number of


2” 3”

Duct Size

4” 6”

1 21 100 100

2

3

4

5

6

7

8

9

100

50 100

100

100

100

75

50

10

8”

100

100

100




Power Vent (1 pipe)

Number of


1

3”

130

4”

130

Duct Size

6”

2

3

4

5

6

7

8

9

130

30 130

130

130

130

45

30

8”

130

130

10 130




Direct Vent (2 pipe)

Number of


3” 4”

Duct Size

6”

1 65 65

2

3

4

5

6

7

8

9

65

30 65

65

65

65

45

30

10

8”

65

65

65



i200, i250, i200P, i250P Venting and Materials 22

7.8.2 Recommended Exhaust Pipe Transitions

Do not use a 90 degree t-fi tting for the gas exhaust.

45°

3X DIA. MIN

Do not direct gas exhaust from opposite directions. Use a 45 degree transition, as shown.

Do not use 90 degree transition into a reducer or a straight pipe.

1/4” Rise Per

Foot Run

Condensate

Drain

1/4” Rise Per

Foot Run Condensate

Drain

Do not use reducers in a straight run of pipe.

Do not transition into a reducer or use a t-fi tting. Transitions should always be directed into a straight run of pipe.


7.8.3 Two Pipe Vent System (Direct Vent)

The water heater can be direct vented without any modification using a 3 inch diameter pipe when installing single units. When more than one unit is installed, refer to

“7.8.1 Vent Diameter Sizing and Lengths” on page 22.

The following diagrams represent some typical direct venting configurations and are included to assist in designing the vent system. Possible configurations are not limited to the following diagrams.

MAKE

UP AIR

MAKE

UP AIR i200, i250, i200P, i250P Venting and Materials

MAKE

UP AIR

24

7.8.4 Single Pipe Venting System (Power Vent)

When using the single exhaust pipe/power vent method, the following table outlines the required opening sizes for the combustion and ventilation air coming into the room: When installing multiple units, refer to “7.8.1 Vent Diameter Sizing and Lengths” on page 22.

MAKE

UP AIR

MAKE

UP AIR

MAKE

UP AIR

DECOMMISSIONED

AIR INTAKE AND EXHAUST

MAKE

UP AIR

MAKE

UP AIR

MAKE

UP AIR


8.1 Water Line Connection Guidelines

Note: Ensure the water flow rate does not change faster than

1 GPM every 5 seconds. Flow rate changes faster than this cause the unit to malfunction and result in a (E7

Error) code.

When making the water-side connections, please follow these guidelines:

• Since each installation is different, it is up to the installer to route the water lines in the most efficient manner.

• Keep the hot water pipes as short as possible to deliver hot water to the fixtures quickly.

• Only materials (pipes, fittings, valves, solder, etc.) that are approved for use in potable water systems should be used.

• When tightening any fittings to the connections on the water heater, care should be exercised not to overtighten these joints and damage the unit.

• Unions and manual shut-off valves on the cold water inlet and hot water outlet are recommended.

• Isolation valve kits can be used if incoming water treatment is anticipated (such as a water softener) due to hardness levels or heavy usage of the unit.

• To conserve energy, insulate all hot water piping, except the condensate drain or pressure relief valve.

• When the water heater is installed in a closed loop recirculation system, and if the cold water supply line has a back flow preventer, then an expansion tank should be installed to allow for water expansion.

• After installation, test the water heater for proper flow and inspect for leaks.

• Run the hot water for a few minutes and then clean the inlet water strainer located on the cold water inlet fitting.

This strainer must be cleaned periodically to maintain proper water flow.

If the incoming water is known to have a high mineral content or “hardness” (>15 ppm), treatment is recommended upstream from the water heater.

8.3 Hot Water Side Connection

iQ-107

1. Connect a 3/4” NPT coupler to the water heater’s hot water connection.

2. Install a 3/4” union connection.

3. Following local building codes, install a 3/4” manual shut-off valve with 3/4” NPT fittings.

8.3.2 Pressure Relief Valve Installation

WARNING

To prevent serious personal injury, do not install any shut-off device between the water heater and the pressure relief valve. This valve is designed to release abnormally high pressure within the water heater in the event of a system problem.

Proper maintenance of the water heater is required to ensure that your water meets EPA quality standards. The following table shows the maximum contaminant levels allowed, based on the EPA National Secondary Drinking Water Regulations

(40 CFR Part 143.3). If you suspect that your water is contaminated in any way, discontinue use of the water heater and contact an authorized technician or licensed professional.

Contaminant

Total Hardness

Aluminum

Chloride

Copper

Iron

Manganese pH

Sulfate

Total Dissolved Solids (TDS)

Zinc

Maximum Allowable Level

200 mg/l (12 grains/gallon)

0.05 to 0.2 mg/l

250 mg/l

1.0 mg/l

0.3 mg/l

0.05 mg/l

6.5-8.5 mg/l

205 mg/l

500 mg/l

205 mg/l i200, i250, i200P, i250P Water Connections 26

Install a customer-supplied 3/4” 150 psi maximum pressure relief valve with the appropriate BTU/HR rating into the 3/4” female NPT port on the bottom of the unit.

Note: The water heater is designed with an internal high temperature shut-off switch and, therefore, only a pressure relief valve is required for these units.

IQ-106

8.4 Cold Water Side Connection

Install and connect the cold water line.

1. Attach and tighten the flex hose with the loop to the barb fitting located on the bottom of the unit.

SHUT-OFF

VALVE

UNION

IQ-105

IQ-108

1. Connect a 3/4” NPT coupler to the water heater’s cold water connection.

2. Install a 3/4” union connection.

3. Following local building codes, install a 3/4” manual shut-off valve with 3/4” NPT fittings.

4. Connect the unit to the existing cold water lines.

If the existing plumbing is 1/2” pipe, adapters may be used to transition from the 3/4” pipe.

5. Leak test the water piping before placing the unit in operation.

2. Follow applicable local codes and if required, install in-line neutralizer (3) to treat the acidic condensate. Follow all the installation instructions included with the neutralizer.

Note: Ensure that the flex tube is not pinched or kinked. The tube should freely drain. The tube termination should not be immersed in water.

3. Route the drain line to nearby laundry tub (6), floor drain

(5), or condensate pump (4).

WARNING

The drain line 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 carbon monoxide build, which can lead to severe personal injury or death.

4

1

2

27

5

3

6

IQ-027 i200, i250, i200P, i250P Water Connections

The following illustrations provide possible external recirculation options.

RETURN LINE OPTION

Cold

Hot

Optional

Isolation

Kit

Hot Water

Optional

Isolation

Kit

Cold Water

Note: A pressure relief valve can be installed into the hot water isolation valve kit, if this option is used. With this option, a customer-suppled, 3/4” NPT plug must then be installed in the drain port on the bottom of the unit.

KEY

Pressure

Relief

Valve

Ball

Valve

Union Check

Valve i200, i250, i200P, i250P Water Connections 28

UNDER SINK VALVE OPTION #1

Hot

Optional

Isolation

Kit

Cold

Hot Water

Optional

Isolation

Kit

Cold Water

Cold

Courtesy

Grundfos

KEY

Pressure

Relief

Valve

Ball

Valve

Union

UNDER SINK VALVE OPTION #2

Cold

Hot

Optional

Isolation

Kit

Hot Water

Optional

Isolation

Kit

Cold Water

Courtesy

Armstrong “Astro”

29

KEY

Pressure

Relief

Valve

Ball

Valve

Union i200, i250, i200P, i250P Water Connections

9. Electrical

WARNING

To avoid serious injury or even death, follow all applicable local, state, and national regulations, mandates, and building codes for guidelines to install the electrical power supply.

Electrical code requirements are different in the USA and

Canada. Refer to and follow the local building codes, the latest edition of the National Electrical Code (NFPA 70) in the

USA, or the CGA C22.1 Canadian Electrical Code - Part 1.

The circuit breaker should be at least 15 amps.

9.2 Electrical Connection and Polarity

NOTICE

POLARITY

The plug provided with the unit is polarity sensitive. Ensure that the line and neutral are at the correct locations in the wall socket. If the polarity is reversed, it will cause the unit to malfunction and turn off every 15 seconds.

Make sure the electrical outlet being used is wired with at least 12 gauge wire and grounded. Only one water heater should be plugged into an outlet with the 12 gauge wire. It should also be connected to at least a 15 Amp circuit breaker.

The electrical power required for the water heater is 120V AC at 60 Hz.

15 Amp

Circuit

Breaker

Use 15 Amp Breakers For Single Units.

Note: For an electrical wiring schematic, refer to the

Wiring Diagram section in this manual for additional information.

Line

Neutral

Ground

IQ-029

SAFETY

INSTRUCTIONS

If desired, the water heater can be wired into the electrical system by removing the power cord and replacing it with electrical cable. If this method is used, a separate ON/OFF switch must be installed to remove power from the unit.

Electrical 24

10. Propane (LPG) Conversion

SAFETY

INSTRUCTIONS

A qualified service technician MUST make the required changes to convert the water heater from Natural Gas to

LP Gas.

5. Reconnect the power and wait for main screen to appear.

10.1 General Information

Before beginning the conversion, make sure the LP gas inlet pressure is between 8.0” and 13.0” W.C. Record the gas pressure here.

STATIC LP GAS PRESSURE ____________W.C.

DATE ___________________

6. Press and hold the Mode button until the rS screen appears on the display.

10.2 Procedure

1. Make sure all hot water faucets are OFF. If required, press the control panel Power button to turn the water heater

OFF. Disconnect the power.

2. Shut OFF the gas supply inlet valve closest to the unit, if connected.

3. Remove the front cover and locate the main circuit board.

4. Locate DIP Switch 1 and change it to the PROPANE position.

Press the Mode button multiple times until the Ft screen appears on the display. The current Fuel Type setting will appear. Either nAt or Prop will be displayed to indicate the position of the DIP switch.

7. Press and hold the Enter button to return to the main display.

DIP Switch Settings (Réglages des commutateurs DIP)

SW1

ON

Propane

ON

Natural Gas

(Gaz naturel)

IN-30

8. Refer to Adjusting the CO

2

Level section in this manual for instructions on connecting a calibrated CO

2

analyzer to the gas valve.

11. Adjusting CO

2

Level

11.1 General Information

This procedure is required only during installation in a high altitude location or when changing the unit from natural gas to propane, or when experiencing combustion problems.

This procedure should only be done by a qualified technician.

DANGER

A concentration of carbon monoxide as small as 0.04%

(400 parts per million) in the air can be fatal. When making high fire and/or low fire adjustments, CO levels must be monitored using a flue gas analyzer so that the level of no more than 400 ppm of CO is exceeded at any time during the operation.

Adjusting the “low fire screw “ or the “high fire screw” in small increments can result in a significant increase in CO concentration. To avoid serious injury or death,

DO NOT make any adjustments to the gas valve without monitoring the exhaust gases with a fully functional and calibrated flue gas analyzer.

11.2 Procedure

1. Locate the gas valve.

2. Use a CO

2

analyzer to measure the exhaust vent gas at the bottom of the condensate trap.

3. Press and hold the Mode button for five seconds to access the rS screen on the display.

4. Press and release the Mode button multiple times until the

CO screen appears on the display.

Hi will be displayed indicating the unit will fire at its highest firing rate when a hot water faucet is opened.

Description

High Fire

Low Fire

High Fire

Low Fire

CO

2

and CO Standards

CO

2

Range (%)

Natural Gas

Max. CO Level (ppm)

8.8% to 9.1%

8.6% to 8.9%

< 200 ppm

< 60 ppm

LP Gas

9.0% to 9.8%

8.6% to 8.9%

< 200 ppm

< 60 ppm

5. Open several hot water faucets to allow at least 5 gpm of water flow.

6. When the unit is operating at high firing – the shower, blower, and flame icons will be displayed.

NOTICE

The values listed in the table are for nominal conditions.

Variables such as gas pressure, heating value of the gas, and the humidity and temperature of combustion air can all impact

CO and CO

2

values. Changes in these variables can result in different CO and CO

2

values on the same water heater.

A qualified service technician must use a calibrated CO

2 to adjust the gas valve to achieve the desired CO

2

analyzer

and CO values.

It is recommended that before any adjustments are made, the gas pressure to the unit be as follows:

NG - 8” W.C.

LP - 11” W.C.

7. Record values in table column 1, ‘Hi’. If the CO

2

values are within the 8.8%-9.1% range, proceed to step 9, otherwise continue with Step 8.

The service technician must confirm Static gas pressures before setting High Fire and Low Fire CO

2

and CO values.

Adjusting CO2 Level 26

8. Use a flat blade screwdriver to adjust the gas valve high fire screw to achieve the desired CO

2 values.

Turn clockwise to decrease CO

2 to increase CO

2 .

and counterclockwise

. Make adjustments by making 1/4 turn increments. Wait three minutes for reading to stabilize and then record the combustion analyzer values for

CO

2

and CO.

IN-32

12. Adjust the Low Fire screw while the burner operates at low fire using a 2 mm hex wrench. Turn clockwise to increase CO

2

and counterclockwise to decrease CO

2 .

.

IN-33

Low Fire Screw

High Fire Screw

9. Once the desired values are achieved, record the new

HIGH FIRE CO

2 values in table column 2, ‘Adjusted Hi’.

CO2 and CO Recorded Values

Hi Adjusted Hi Lo Adjusted Lo

CO

2

Value %

Max CO ppm

Date

10. Press the Down arrow key to let the unit fire at low fire.

13. Once the desired values are achieved, record the LOW

FIRE CO

2 values in table column 4, ‘Adjusted Lo’.

14. Remove the combustion analyzer.

15. Turn off water flow

16. Press and hold the Enter button to return to home screen to resume operation.

11. Record values in table column 3, ‘Lo’. If the CO

2

values are within the 8.6%-8.9% range, proceed to Step 14, otherwise continue with Step 12.

27 Adjusting CO2 Level

12. Operation

12.1 Control Panel

G

A

F

E

D

Mode

Time

Power

Enter

C

B

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.

12.2 Display Icons

K M N O P Q R

J

I

H

T

S

H) Displays the current time in AM or PM.

I) Displays the CODE icon and the most recent digital error code.

J) Displays the INLET icon and the actual inlet water temperature in degrees Fahrenheit or Celsius.

K) Indicates an error has been detected and a trouble code may be shown next to the CODE icon.

M) Warns of freezing conditions within the water heater. The water heater is designed to turn ON to prevent freezing of the internal water pipes.

N) Indicates internal pump is ON.

O) Indicates water flow (open faucet).

P) Indicates blower is ON.

Q) Indicates burner is ON.

R) Indicates the level of energy usage. There are four “bar” indicators and each represent 25% of gas usage.

S) Indicates outlet water temperature.

T) Indicates multiple units are daisy chained and programed.

i200, i250, i200P, i250P Operation 34

12.3 Turning Water Heater ON and OFF

1. To turn the water heater ON press the Power button. 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. The home screen will automatically display when the unit is ready to use.

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.

12.4 Resetting (Clear) Error Codes

1. To reset the water heater and clear all error codes, press and release Power button.

12.5 Setting the Time

1. Press and release the Time button.

The minute section of the time display will flash.

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.

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.

35 i200, i250, i200P, i250P Operation

12.6 Adjusting the Water Temperature

12.6.1 General Information

These commercial water heaters are capable of heating water to 185°F.

Note: The outlet water temperature is factory preset to

120°F.

12.7 Real Time Temperature and Flow of the System

Press and hold the Orange button.

The flow screen Flo indicates gallons per minute (gpm). This screen alternates between Flo and the actual gallons per minute. The first two digits are gallons and the second two digits are a portion of one gallon. For example 3:05 is 3.05 gallons per minute.

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).

12.6.2 Adjustment Procedure

Press the Up/Down arrows to set the desired temperature range from 100 to 140°F in one degree increments.

Note: The actual water temperature will also be displayed

(116°F).

Release the Orange button to return to the home screen.

12.8 Flue and Domestic Water Temperature

When the Orange button is held down, the left-hand side of the display scrolls through the following parameters in succession:

Flow Rate

Flo followed by 3:05 (Indicated flow rate of 3.05 GPM).

Flue Temperature

FLUE and the actual temperature of flue, such as 110°F .

For setting the temperature above 140°F, press and continue to hold the Orange button while pressing the Up arrow. Continue pressing the Up button until the desired temperature range is reached.

Once the desired temperature is selected, the unit will heat water up to that temperature.

When the Orange button is released, the Home screen will appear.

i200, i250, i200P, i250P Operation 36

Domestic Outlet Water Temperature tout and the actual domestic hot water (DHW) outlet temperature, such as 120°F

12.9 Error Screen

If an error occurs, the display will indicate the error code ( E3 ).

The safety alert symbol will also be flashing.

If the safety alert symbol is visible but not flashing, it means that communication between the units was interrupted, but has since been reestablished.

37 i200, i250, i200P, i250P Operation

13. Programming

13.1 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. Remove the front covers and locate the main circuit boards on the first and last units.

3. Locate DIP Switch 3 on the first and last units and position the switch in the ON position. On all the middle units, position the switch in the OFF position.

13.1.1 Standard Modes

ON

1. Press and release the Mode button until the desired screen shows on the display.

dC - Daisy Chain

FC - Flow Control

PH - Performance History

IH - Setting Instant Hot Water Times* dE - Diagnostic Error

* Applies only to i200P and i250P models.

2. Follow the instructions in the specific section to enter the desired settings.

OFF

IN-61a

13.1.2 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

CE - Common Exhaust

FP - Flue Pipe Type

CO - Adjust CO

2

Level

2. Follow the instructions in the specific section to enter the desired settings.

13.2 Viewing and Setting Modes of Operation

13.2.1 Daisy Chain

4. Using the supplied cables, connect one end of a cable into either of two jack receptacles (arrows) located on the circuit board and the other end to the jack in the next unit.

Set DIP Switches

1. Disconnect the power from all the units in the system.

WARNING

SHOCK HAZARD

Before making any adjustments or connections inside the water heater cabinet, make sure the power is disconnected.

Unplug the water and/or turn the circuit breaker OFF.

i200, i250, i200P, i250P Programming 38

IN-61

5. Pass the cable through the grommet located at the bottom of the cabinet.

6. Secure the cable using a zip tie.

1 2 3

13.2.2 Flow Control Selection

Press the Mode button multiple times until the

FC

screen appears on the display.

The current setting will be shown on the display.

Dip Switch 3

ON

Dip Switch 3

OFF

7. Replace the front covers.

Dip Switch 3

ON

IH-61a

Set Up Unit Number

1. Reconnect the power and wait for the home screen to appear.

2. Press and release the Mode button until the dC screen appears. The designated number for the unit will be displayed. The default is OFF.

The water control valve is set to ON for temperature priority and OFF for maximum flow.

Press the Up/Down arrows to select either ON or OFF.

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.

3. Now, press the Up/Down arrows to select the desired number for the particular water heater. Change the selection from OFF to one of the ten possible selections

(01, 02, 03 , though 10) . The up/down arrows scroll from

OFF to 1 through 10 and then to OFF .

4. Once the desired number is selected, press and hold the

Enter button for three seconds to save this setting and return to the main display screen.

5. Repeat the above steps and set each unit to a different number. For example, the next unit would be 02 , the third unit would be 03 , and so on.

39 i200, i250, i200P, i250P Programming

13.2.3 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).

13.2.4 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.

Diagnostic Code FC (Firing Count) shows a flame count of 40,000. (To obt ain the total number, multiply the number by 1,000).

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.

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.


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.


13.2.5 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

E1

E3

E7

E9

EA

EC

Ed

Description of Error Code

Blower Speed Fault

Blocked Flue Fault

Ignition Failure

Temperature Sensor Shorted

Temperature Sensor Open Circuit

Flue Temperature Exceeded Set Limit

Heat Exchanger Outlet Temperature Exceeded

Set Limit

Flashing

Warning Icon

Flashing

Cascading Icon

Flashing

Recirculation

Icon

Error Code and Unit Locked Out

Loss of Communication Between Units

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 .

13.2.6 Blower Ramp Selection

observed.

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

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.


Example of the last viewable code

Blocked Flue Fault Code E3 .




13.2.7 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.

13.2.8 Common Exhaust Venting

Changing this setting can only be done when the

Flame ON icon is not displayed.

This mode is applicable when multiple units are connected together. Turning the CE mode ON allows multiple units to be vented into a common vent. Refer to the Venting for

Commercial Application section for information on common venting guidelines.

Press and hold the Mode button until the rS screen appears.

Press and release the Mode button multiple times until the

CE screen appears. The current setting will be displayed.

The default setting for this mode in ON.

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.

Press the Up/Down arrows to select either ON or OFF.

To change fuel type from factory set natural gas to propane, follow the Propane Conversion procedure in this manual.



Press the Enter button to save the changes and return to the main display.



13.2.9 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.

CO

2

Levels Selection

Refer to the Adjusting the CO

2

Level section in this manual.

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.



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.

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.

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-046

3. Position a bucket or other container against the drain port.

4. Use an Allen wrench and remove drain plug (1).

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.

1

IQ-111

5. When all the water has drained from the water heater, replace the drain plug.

IH-162a

5. Replace the strainer cover plug.

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.

Maintenance Section 16

15. Troubleshooting

15.1 Error Code Chart

ERROR CODE DESCRIPTION

Blower Speed Fault

Blocked Flue Fault

Ignition Failure

Temperature Sensor

Shorted

POSSIBLE CAUSE

• Blower noisy / impeller jammed.

• Disconnected signal wire.

• Wiring faulty.

• Exhaust blocked (bird, etc).

• Backed up condensate.

• Faulty sensor

• HE - heat exchanger water outet temperature sensor.

• FL - Flue temperature sensor.

• IN - inlet water temperture sensor.

• Faulty controller

• rE - Recirculation temperature sensor.

• Ou - Domestic Hot water outlet temperature sensor.

REMEDY

• 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.

• 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.

• Check pump, check cross over solenoid. Electrical noise (dsi).

• Replace part.

• Wiring loose (switch open).

• Water over-heat switch tripped.

• Faulty DSI, faulty igniter wire, faulty ignition connection, faulty

PCB, bad igniter.

• Low gas pressure.

• Faulty sensor wiring

• 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.

• 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 i200, i250, i200P, i250P Troubleshooting 46

ERROR CODE DESCRIPTION

Temperature Sensor

Open Circuit

POSSIBLE CAUSE

• Unplugged connectors


• Faulty sensor

• HE - heat exchanger water outet temperature sensor.

• FL - Flue temperature sensor.

• IN - inlet water temperture sensor.

• Faulty Controller

• rE - Recirculation temperature sensor.

• Ou - Domestic Hot water outlet temperature sensor.

REMEDY

• Check connectors and ensure they are securely connected

• Check for nicked or broken sensor wiring or connectors. Also check for corroded or wet connectors


• Replace controller

Flue Temperature

Exceeded Set Limit

Heat Exchanger Outlet

Temperature Exceeded

Set Limit

Flashing Icon

• Incorrect vent set up

• High inlet temperature


• Faulty sensor


• Flow rate changes excessive


• Faulty sensor


• Indicates an error code and unit locked out

• If vent pipe material is CPVC or Ployproplene, 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 Ployproplene.

• Check for nicked or broken sensor wiring & connectors. Also check for corroded or wet connectors



• 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



• Refer to the indicated error code (E1, E2, etc) for resolution

Flashing Cascade Icon

(Pump Models Only)

Recirculation Icon

Flashing

• Loss of communication between units

• Pump in-operable

• Pump faulty & excessively hot


• Plugged up solenoid valve

(P models)

• Solenoid valve faulty (P models)

• Jammed check valve

47

• Check for broken or nicked communication cable or loose connector

• Ensure that the communication cable is not bundled or tied to any high voltage lines

• Ensure dip switch (SW3) is ON in first and last units and OFF in all other units

• Ensure each unit numbering is unique under the dC mode

• Check pump wiring harness for loose connectors

• Replace pump


• Clean lines and replace solenoid

• Replace solenoid valve

• Remove check valve access and ensure gate is free to move i200, i250, i200P, i250P Troubleshooting

15.2 Wiring Diagram Chart

e lv r Va Wate

Connectors

Cascading

Pink

Black

BRN

BRN

RED

RED i200, i250, i200P, i250P Troubleshooting 48

15.3 Operational Diagram

Is

IH Mode

Time ON

Is

IH Mode

Time ON

49

IH-109 i200, i250, i200P, i250P Troubleshooting

16. Serviceable Parts

16.1 Electrical Components (All Models)

1

2

3

ITEM NO.

1

2

3 i200, i250, i200P, i250P Serviceable Parts

PART NUMBER

IGT-SPR0004

IGT-SPR0002

IGT-SPR0005

50

DESCRIPTION

DISPLAY

CONTROLLER

IGNITER MODULE

16.2 i200 and i250 Water Lines and Fittings

8

9

10

11

12

13

14

ITEM NO. PART NUMBER

1 IGT-SPR0036

2 IGT-SPR0018

5

6

3

4

7

IGT-SPR0003

IGT-SPR0025

IGT-SPR0026

IGT-SPR0028

IGT-SPR0029

IGT-SPR0037

IGT-SPR0039

IGT-SPR0023

IGT-SPR0042

IGT-SPR0043

IGT-SPR0044

IGT-SPR0045

DESCRIPTION

SMALL TEE

WATER INLET FITTING (3/4" NPT)

FLOW SENSOR ASSEMBLY

HEAT EXCHANGER INLET BOTTOM TUBE

HEAT EXCHANGER OUTLET TOP TUBE

BUFFER TANK TO DRAIN PORT TUBE

DRAIN PORT

OUTLET PORT 3/4 NPT

2 PORT SOLENOID VALVE

BYPASS TUBE

HEAT EXCHANGER INLET TOP TUBE ASSEMBLY

PUMP TEE TO WATER OUT TUBE ASSEMBLY



3

8

14

6

1

13

51

7

2

10

11

4

5

12


16.3 i200P and i250P Water Lines and Fittings

9

16

1

17

7

15

11

12

8

10


3

2

13

1

14

4

6

1

52

ITEM NO. PART NUMBER

1

2

IGT-SPR0036

IGT-SPR0018

3

4

5

IGT-SPR0003

IGT-SPR0025

IGT-SPR0026

10

11

12

13

8

9

6

7

14

15

16

17

IGT-SPR0028

IGT-SPR0027

IGT-SPR0029

IGT-SPR0037

IGT-SPR0039

IGT-SPR0041

IGT-SPR0007

IGT-SPR0046

IGT-SPR0047

IGT-SPR0048

IGT-SPR0049

IGT-SPR0030

DESCRIPTION

SMALL TEE

WATER INLET FITTING (3/4" NPT)

FLOW SENSOR KIT

HEAT EXCHANGER INLET BOTTOM TUBE

HEAT EXCHANGER OUTLET TOP TUBE

BUFFER TANK TO DRAIN PORT TUBE

HEAT EXCHANGER OUTLET BOTTOM TUBE

DRAIN PORT

OUTLET PORT 3/4 NPT

2 PORT SOLENOID VALVE

ADAPTER 1/2 X 20 FEMALE

PUMP KIT

HEAT EXCHANGER INLET TOP TUBE

TEE CROSS OVER TUBE

WATER PUMP TEE CROSS OVER TUBE

PUMP TEE TO WATER OUT TUBE

BUFFER TANK OUT TO WATER PUMP IN TUBE

16.4 Blower, Gas Valve, and Exhaust (All Models)

2

4

3

1

ITEM NO.

1

2

3

4

PART NUMBER

IGT-SPR0017

IGT-SPR0016

IGT-SPR0008

IGT-SPR0011

53

DESCRIPTION iQ250/iQ250D FLUE PIPE ASSEMBLY (PP) iQ250 GAS INLET ASSEMBLY

BLOWER KIT

GAS VALVE KIT

i200, i250, i200P, i250P Serviceable Parts

16.5 Ignition Components (All Models)

2

1

ITEM NO.

1


PART NUMBER

IGT-SPR0006

IGT-SPR0005

54

DESCRIPTION

ELECTRODE KIT

IGNITER MODULE

13. Requirements for State of Massachusetts

Notice Before Installation

This appliance must be installed by a licensed plumber or gas fitter in accordance with the Massachusetts Plumbing and

Fuel Gas Code 248 CMR Sections 2.00 and 5.00.

IMPORTANT: In the State of Massachusetts (248 CMR 4.00 &

5.00)

3. SIGNAGE.

A metal or plastic identification plate shall be permanently mounted to the exterior of the building at a minimum height of eight (8) feet above grade directly in line with the exhaust vent terminal for the horizontally vented gas fueled heating appliance or equipment. The sign shall read, in print size no less than one-half (1/2) inch in size, “GAS VENT DIRECTLY BELOW. KEEP CLEAR OF ALL

OBSTRUCTIONS”.

For all side wall horizontally vented gas fueled equipment installed in every dwelling, building or structure used in whole or in part for residential purposes, including those owned or operated by the Commonwealth and where the side wall exhaust vent termination is less than seven (7) feet above finished grade in the area of the venting, including but not limited to decks and porches, the following requirements shall be satisfied:

4. INSPECTION.

The state or local gas inspector of the side wall horizontally vented gas fueled equipment shall not approve the installation unless, upon inspection, the inspector observes carbon monoxide detectors and signage installed in accordance with the provisions of

248 CMR 5.08(2)(a)1 through 4.

1. INSTALLATION OF CARBON MONOXIDE DETECTORS.

At the time of installation of the side wall horizontal vented gas fueled equipment, the installing plumber or gasfitter shall observe that a hard wired carbon monoxide detector with an alarm and battery backup is installed on the floor level where the gas equipment is to be installed. In addition, the installing plumber or gasfitter shall observe that a battery operated or hard wired carbon monoxide detector with an alarm is installed on each additional level of the dwelling, building, or structure served by the side wall horizontal vented gas fueled equipment. It shall be the responsibility of the property owner to secure the services of qualified licensed professionals for the installation of hard wired carbon monoxide detectors.

a. In the event that the side wall horizontally vented gas fueled equipment is installed in a crawl space or an attic, the hard wired carbon monoxide detector with alarm and battery back-up may be installed on the next adjacent floor level.

b. In the event that the requirements of this subdivision cannot be met at the time of completion of installation, the owner shall have a period of thirty (30) days to comply with the above requirements; provided, however, that during said thirty (30) day period, a battery operated carbon monoxide detector with an alarm shall be installed.

2. APPROVED CARBON MONOXIDE DETECTORS.

Each carbon monoxide detector, as required in accordance with the above provisions, shall comply with NFPA 720 and be ANSI/UL 2034 listed and IAS certified.

18. Warranty

General

This water heater is warranted by Intellihot Green

Technologies Inc. (Intellihot), and covers defects in materials and workmanship, subject to the applicable time periods and terms below. This warranty begins on the date of installation or on the date of possession in the case of new construction.

This warranty is extended to the original purchaser and any subsequent owner at the original install location, and applies only when properly installed by a licensed contractor and operated in accordance with the instruction manuals.

This warranty is limited to repairs or replacement of parts, at Intellihot’s option, that are proven to be defective under normal use and connected only to potable water systems.

Effective Start Date

Intellihot requires proof of purchase (dated sales receipt) and warranty registration in order to obtain warranty service.

Register the warranty within 30 days of purchasing the product by mailing a completed warranty card in this manual.

Commercial Warranty

Heat Exchanger Coil - 6 years

Other Parts - 3 year

Labor - 1 year

Residential DHW Warranty

Heat Exchanger Coil - 15 years

Other Parts - 5 years

Labor - 1 year

Residential Domestic Hot Water (DHW) means potable water heating in a single family residence, not connected with any space heating. Commercial means all other applications including any space heating applications.

Heat Exchanger Coil

The warranty period for a heat exchanger coil, when installed in a residential DHW application (including recirculation), is fifteen (15) years from the effective start date. The warranty period for a heat exchanger coil, when installed in a commercial application (including recirculation) or any space heating application, is six (6) years from the effective start date.

All other Parts and Components

The warranty period for any original parts (excluding the heat exchanger coil) against failure, when installed in a residential

DHW application (including recirculation) application is five

(5) years from the effective start date. The warranty period for any original parts (excluding the heat exchanger coil) against failure, when installed in a commercial application (including recirculation) or any space heating application is three (3) years from the effective start date. A replacement part will be warranted for the unexpired term of the original warranty.

Defective parts submitted may not be returned. No returns will be accepted without prior authorization from Intellihot.

Labor

The applicable period of this limited labor warranty is one (1) year from the effective start date. The payment and amount of any payment are subject to approvalat Intellihot’s sole discretion. Replacement parts must be genuine Intellihot parts and warranty service must be performed by a licensed contractor. The labor allowance will be paid based on the following: i200, i250, i200P, i250P Warranty 56

Repair or replacement of any parts - $75.00 per hour up to a maximum of $150.00

Replacement of entire unit - $75.00 per hour up to a maximum of $225.00

Shipping Costs

If a replacement part is supplied under the terms of this warranty, Intellihot will provide ground service delivery for the part free of charge. Any expedited shipping expense will be paid by the customer.

Definition of Potable Water

Potable water is defined as drinkable water supplied from utility or well water in compliance with EPA secondary maximum contaminant levels (40 CFR part 143.3), as shown in the table. Intellihot will warrant the heat exchanger coil for hardness up to 15 Grains per gallon (257ppm as Calcium carbonate).

Contaminant

Aluminum

Chloride

Color

Copper

Corrosivity

Fluoride

Foaming Agents

Iron

Manganese

Odor pH

Silver

Sulfate

Total dissolved solids (TDS)

Zinc

Level

0.05 to 0.2 mg/l

250 mg/l

15 color units

1.0 mg/l

Non-corrosive

2.0 mg/l

0.5 mg/l

0.3 mg/l

0.05 mg/l

3 threshold odor number

6.5-8.5 mg/l

0.1 mg/l

250 mg/l

500 mg/l

5 mg/l

Not Covered by this Warranty

This warranty does not cover failures or problems due to:

• Failure to install in accordance applicable building codes, ordinances, normal plumbing and electrical trade practices.

• Improper installation, improper use, improper maintenance, improperly made replacements or repairs, accidents, or abuse.

• Sediment deposits, fire, flood, lightning, freezing, and acts of God, or any causes other than defects in materials and workmanship.

This warranty will be void and have no effect if:

• The water heater is modified or altered in any way.

• Appliance(s) or equipment attached to the water heater have not been approved by Intellihot Green Technologies.

• If the unit is used exclusively as a booster heater for a commercial dishwasher, or if the water from a reverse osmosis or deionized process is run directly through the unit.

• The serial number is altered, defaced, or discarded.

Warranty Limitations

This warranty applies only when the water heater is used in the United States or Canada. Except for the limited warranties provided above, Intellihot Green Technologies disclaims any and all other warranties, including but not limited to warranties or merchantability and fitness for a particular purpose; provided however, that implied warranties or merchantability and fitness for a particular purpose are not disclaimed during the one year period from the effective date. Intellihot shall not be liable for indirect, special, incidental, consequential, or other similar damages, including lost profits, arising from or relating to the water heater. This warranty gives you specific legal rights, and you may also have other rights which vary from state to state.

How to Make a Claim

Please call (877) 835-1705. Proof of purchase in the form of a dated sales receipt and warranty registration is required in order to obtain warranty service, and should be included with your claim. The product owner should submit the warranty claim directly to Intellihot at the following address:

Intellihot Green Technologies, Inc.

Attn: Warranty Claims

2900 W. Main Street

Galesburg, IL 61401

All parts claimed to be defective may be requested to be returned to Intellihot for examination prior to full claim settlement. Please include the following information on your warranty claim:

• Model number and serial number of the water heater.

• Date of original purchase.

• Owner’s name and address.

• A description of the problem with the part and water heater.

57 i200, i250, i200P, i250P Warranty

NOTES

25

To activate your warranty, please fill out the information in the form below and mail to the following address:

Warranty Registration

Intellihot Green Technologies, Inc.

2900 W. Main Street

Galesburg, IL 61401

Model: __________________

Serial Numbers (up to 4):

________________________

________________________

________________________

________________________

Owner Information:

Name: _____________________________________________

Address: ___________________________________________

City, State, Postal Code _______________________________

Phone Number ______________________________________

Dealer Information:

Sold By: ___________________________________________

Address: ___________________________________________

City, State, Postal Code _______________________________

Phone Number ______________________________________

NOTES

59

NOTES

60

if

Box

Check Gas

Converted to

Propane

Cocher la case si converti au gaz propane nv er sion* to r te

Field Co

Pr opane Gas



Wat er Hea y Pr eset

20,00

Na


10.5

.C. (0.76 kPa)

3.0 W

11

.0

W.

C. (2.74 kPa)

OR

CT tic Instantaneous

FA

PRÉRÉGLAGES D'USINE POUR UTILISATION AVEC

L

TION ONL . . .

m

199,000

20,000

GAZ NA

TURE

ALLA ent Automa

: . . . . . . . . . . . . . . . . 8.0

Dir ect-V

Ty

N

120 V

ATURAL GAS pe of Gas

Input Rating

(Type de gaz)

: Btu/hr Maximu



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

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

8.0

.C. (3.20 kPa)

150 psi (1034 kPa)

15 psi (103 kPa)

265 GPH (1003 LPH)

150 psi (1034 kPa)

15 psi (103 kPa)

265 GPH (1003 LPH)

Up to 98% / 0.94

(Jusqu'à 98 % / 0.94)




(Se référer au manuel d'installation et de fonctionnement pour la procédure de conversion.) . . . . . . . . . . . . .


(Pression de gaz d'arrivée maximum) . . . . . . . . . . . . .

Minimum Inlet Gas Pressure:

(Pression de gaz d'arrivée minimum)

Wa ter Pressure: . . . . . . . .

Minimum Inlet Gas Pressure (for adjustments): . .

Maximum

Wa ter Pressure:

(Pression d'eau maximum)

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

Energy Factor:

146.2)

Up to 98% / 0.94

(Jusqu'à 98 % / 0.94)


(Moins de 20 ppm) ETL

STICKER

(Collant ETL)

ciency / :


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

(Caractéristique de recouvrement)

Thermal Effi (D'une construction combustible)

NOx Emissions:

(Émissions de NOx)

Minimum Clearances

6 in (15.2 cm)

(Pursuant to South Coast Non-Combustibles


2 in (50.8 mm)

5/8 in (15.8 mm)

6 in (15.2 cm)

1/2 in (12.7 mm)

12 in (30.4 cm)

Top of heater


Back of heater


Front of heater

(Avantdu chauffe-eau)

Side

(Côté)



5/8 in (15.8 mm)

6 in (15.2 cm) echnologies Inc

2 in (50.8 mm)

12 in (30.4 cm)

Intellihot Green T

(877) 835- 1705

Galesburg, IL 61401

Phone:

Email:

We b: www

.

IGT

-LBL

-0005-01

Dealer / Installer Contact Information:

Revised 12-2014

Intellihot i200, i250, i250P Operation And Installation Manual

Smart. Efficient. Endless

Operation and

Installation

Manual

Table of Contents

2. Safety

4. Preparation Before Installation

7. Venting and Materials

9. Electrical

10. Propane (LPG) Conversion

11. Adjusting CO Level

12. Operation

13. Programming

14. Maintenance

15. Troubleshooting

16. Serviceable Parts

17. Requirements for State of Massachusetts . . .55

18. Warranty. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .56

19. Product Warranty Card . . . . . . . . . . . . . . . . . . . . .59

1.1 Items Shipped With Water Heater

SPARES

1.3 Serial Number Plate Locations

2. Safety

3.2 High Elevation Installations

SIDE VIEW

TOP VIEW

FRONT VIEW

BOTTEM VIEW

3.4 Connections

4

2

3

6

1

7

5

8

4. Preparation Before Installation

4.1 Selecting an Installation Site

1

2

5.2 Mounting the Unit to the Wall

6.2 Excess Flow Valve (EFV)

6.3 Gas Pipe Sizing Tables

6.5 Venting of Gas Supply Regulators

7.2 Exhaust Vent Materials

7.3 Air Intake Vent Materials

7.5 Two Pipe Vent System (Direct Vent)

7.5.1 Single Pipe Venting System (Power Vent)

Combustion Air Direct from Outside

2 Direct Openings or through Vertical Duct

1 sq. in. per 4000 btu/h

Combustion Air Direct from Outside

1 Direct Opening

1 sq. in. per 3000 btu/h

Combustion Air Through Ducts

2 Openings through Horizontal Duct

1 sq. in. per 2000 btu/h

Combustion Air from Interior Space

2 Direct Openings or through Vertical Duct

1 sq. in. per 1000 btu/h

7.6.1 Side Wall Termination

12”

7.6.3 Concentric Venting Termination (Single Unit)

7.6.4 Concentric Venting Termination (Multiple

Units

7.8 Common Venting for Multiple Units

7.8.1 Vent Diameter Sizing and Lengths

7.8.2 Recommended Exhaust Pipe Transitions

7.8.3 Two Pipe Vent System (Direct Vent)

7.8.4 Single Pipe Venting System (Power Vent)

8.1 Water Line Connection Guidelines

8.3 Hot Water Side Connection

8.3.2 Pressure Relief Valve Installation

8.4 Cold Water Side Connection

RETURN LINE OPTION

UNDER SINK VALVE OPTION #1

UNDER SINK VALVE OPTION #2

9. Electrical