Hubbell GX200, GX250, G250P, GX200P Installation & Operation Manual

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WATER HEATERS SINCE 1920

Intuitive · Reliable · Efficient

INSTALLATION &

OPERATION MANUAL

Hubbell Model GX200 / GX200P

GX250 / G250P

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on 0odels *; / *;3

To avoid product damage, personal injury, or even possible death, carefully read, understand, and follow all the instructions in the Installation and

the 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

homeowner should retain this manual for future reference.

WARNING

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

— Do not store or use gasoline or other flammable

vapors and liquids in the vicinity of this or any other appliance.

WHAT TO DO IF YOU SMELL GAS

!

Do not try to light any appliance.

!

Do not touch any electrical switch; do not use any phone in your building.

!

Immediately call your gas supplier from a neighbor’s phone. Follow the gas supplier’s instructions.

!

If you cannot reach your gas supplier, call the fire department.

— Installation and service must be performed by

a qualified installer, service agency, or the gas supplier.

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.

— Ne pas entreposer ni utiliser d’essence ou

ni d’autres vapeurs ou liquides inflammables à proximité de cet appareil ou de tout autre appareil.

QUE FAIRE SI VOUS SENTEZ UNE ODEUR DE GAZ

"

Ne pas tenter d’allumer d’appareil.

"

Ne touchez à aucun interrupteur; ne pas vous servir des téléphones se trouvant dans le bâtiment.

"

Appelez immédiatement votre fournisseur de gaz depuis un voisin. Suivez les instructions du fournisseur.

"

Si vous ne pouvez rejoindre le fournisseur, appelez le service des incendies.

— L’installation et l’entretien doivent être assurés

par un installateur ou un service d’entretien qualifié ou par le fournisseur de gaz.

Due to Hubbell’s policy of continuous product improvement and technology, the design and/or technical speci¿cations are subMect to change Zithout notice

Serial Number: ___________________________________ Date of Installation: ___ / ___ / ______

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TABLE OF CONTENTS

Table of Contents

TABLE OF CONTENTS. . . . . . . . . . . . . . . . . . . . . 3

ITEMS SHIPPED WITH WATER HEATER . . . . . . 4

SAFETY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5

Safety Icon Nomenclature . . . . . . . . . . . . . . . . . . . . . . 6

Personal Protection . . . . . . . . . . . . . . . . . . . . . . . . . 6

Prohibited Actions. . . . . . . . . . . . . . . . . . . . . . . . . . . 6

Hazard Avoidance . . . . . . . . . . . . . . . . . . . . . . . . . . 6

Operation and Installation Warnings . . . . . . . . . . . . . . 6

TECHNICAL SPECIFICATIONS . . . . . . . . . . . . .10

SPECIFICATIONS (NOMENCLATURE) . . . . . . .12

DIMENSIONAL SPECIFICATIONS . . . . . . . . . . .13

QUICK REFERENCE INSTALLATION GUIDE . .14

PREPARATION BEFORE INSTALLATION. . . . . 16

Selecting an Installation Site . . . . . . . . . . . . . . . . . . . 16

High Elevation Installations . . . . . . . . . . . . . . . . . . 17

Water Quality . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

WALL MOUNTING. . . . . . . . . . . . . . . . . . . . . . . .19

Mounting Block Installation Method. . . . . . . . . . . . . . 19

Plywood Installation Method . . . . . . . . . . . . . . . . . . . 19

ADJUSTING THE CO2LEVEL. . . . . . . . . . . . . . .39

Control Panel. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41

OPERATION . . . . . . . . . . . . . . . . . . . . . . . . . . . .41

Display Icons . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42

Setting the Time . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43

Adjusting the Water Temperature . . . . . . . . . . . . . . . 44

Customer Screens. . . . . . . . . . . . . . . . . . . . . . . . . . . 45

Domestic Heating Mode. . . . . . . . . . . . . . . . . . . . . 45

Programming ON/OFF Run Times. . . . . . . . . . . . . 45

WATER HEATER PROGRAMMING SECTION. . 45

Recirculation Setup . . . . . . . . . . . . . . . . . . . . . . . . . . 46

Cascading (Daisy Chain). . . . . . . . . . . . . . . . . . . . . . 47

Technician Screens . . . . . . . . . . . . . . . . . . . . . . . . . . 48

Pressure Booster (pump models only . . . . . . . . . . 48

Fast Start Selection . . . . . . . . . . . . . . . . . . . . . . . . 48

Flow Booster . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49

Blower Ramp Selection . . . . . . . . . . . . . . . . . . . . . 49

Flow Control Selection . . . . . . . . . . . . . . . . . . . . . . 50

Fuel Type Selection . . . . . . . . . . . . . . . . . . . . . . . . 50

Blower Override . . . . . . . . . . . . . . . . . . . . . . . . . . . 50

Diagnostic Code and Error Log Selection . . . . . . . 51

Diagnostic Code and Error Log Selection . . . . . . . 52

Adjusting CO2 Levels Selection . . . . . . . . . . . . . . . 52

Commercial Heating Selection. . . . . . . . . . . . . . . . 52

GAS CONNECTION. . . . . . . . . . . . . . . . . . . . . . .20

GAS PIPE SIZING TABLES . . . . . . . . . . . . . . . .21

Gas Pipe Sizing. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21

Natural Gas Pipe Sizing . . . . . . . . . . . . . . . . . . . . . 21

LP Gas Pipe Sizing . . . . . . . . . . . . . . . . . . . . . . . . 21

COMBUSTION (FRESH) AIR INLET EXHAUST

OUTLET CONNECTIONS . . . . . . . . . . . . . . . . . .22

VENTING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .24

Combustion (All) Air From the Outdoors . . . . . . . . 24

Outdoor Air . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24

Two Openings or Ducts. . . . . . . . . . . . . . . . . . . . 24

Size of Openings. . . . . . . . . . . . . . . . . . . . . . . . . 24

Attic Combustion Air . . . . . . . . . . . . . . . . . . . . . . 24

Under-ﬂ oor Combustion Air. . . . . . . . . . . . . . . . . 24

Opening Requirements . . . . . . . . . . . . . . . . . . . . 24

Combustion (All) Air From Inside the Building . . . . 26

Required Volume. . . . . . . . . . . . . . . . . . . . . . . . . 26

Conﬁ ned Space. . . . . . . . . . . . . . . . . . . . . . . . . . 26

Unusually Tight Construction . . . . . . . . . . . . . . . 26

Power Vent Installation Examples . . . . . . . . . . . . . 26

INSTAL HOT WATER LINES. . . . . . . . . . . . . . . . 27

INSTAL COLD WATER LINES . . . . . . . . . . . . . .28

INSTALL CONDENSATE DRAIN . . . . . . . . . . . .29

CONNECT ELECTRICAL POWER / INITIAL

STARTUP. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .30

MULTIPLE UNITS . . . . . . . . . . . . . . . . . . . . . . . . 31

MEASURING GAS PRESSURE . . . . . . . . . . . . .36

PROPANE (LPG) CONVERSION . . . . . . . . . . . . 37

MAINTENANCE. . . . . . . . . . . . . . . . . . . . . . . . . . 53

Cleaning the Inlet Water Y-Strainer . . . . . . . . . . . . . . 54

Draining the Water Heater. . . . . . . . . . . . . . . . . . . . . 54

Filling the Water Heater. . . . . . . . . . . . . . . . . . . . . . . 55

TROUBLESHOOTING CHART . . . . . . . . . . . . . .55

WIRING DIAGRAM . . . . . . . . . . . . . . . . . . . . . . .57

COMMERCIAL OPTIONS . . . . . . . . . . . . . . . . . .58

Commercial Option #1 . . . . . . . . . . . . . . . . . . . . . . 59

Commercial Option #2 . . . . . . . . . . . . . . . . . . . . . . 59

Commercial Option #3 . . . . . . . . . . . . . . . . . . . . . . 59

Commercial Option #4 . . . . . . . . . . . . . . . . . . . . . . 59

Commercial Option #5 . . . . . . . . . . . . . . . . . . . . . . 59

Commercial Option #6 . . . . . . . . . . . . . . . . . . . . . . 59

OPERATIONAL DIAGRAM . . . . . . . . . . . . . . . . .59

WARRANTY. . . . . . . . . . . . . . . . . . . . . . . . . . . . .60

General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 61

Effective Start Date . . . . . . . . . . . . . . . . . . . . . . . . . . 61

Heat Exchanger Coil . . . . . . . . . . . . . . . . . . . . . . . . . 61

All other Parts and Components . . . . . . . . . . . . . . . . 61

Labor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 61

Shipping Costs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 61

Deﬁ nition of Potable Water . . . . . . . . . . . . . . . . . . . . 61

WARRANTY. . . . . . . . . . . . . . . . . . . . . . . . . . . . .61

Not Covered by this Warranty . . . . . . . . . . . . . . . . . . 62

Warranty Limitations . . . . . . . . . . . . . . . . . . . . . . . . . 62

How to Make a Claim . . . . . . . . . . . . . . . . . . . . . . . . 62

Requirements for the State of Massachusetts . . . . . 63

Notice Before Installation . . . . . . . . . . . . . . . . . . . . 63

NOTES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .64

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ITEMS SHIPPED WITH WATER HEATER

The following items are shipped with the water heater;

upper mounting bracket (1), condensate Operator’s manual (3), communication cable (4), (5), and tee fitting (6).

hose (2),

O-rings

IMPORTANT

Condensate drain hose(2) has zip ties to keep loop. Do not undo or cut these zip ties

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WARNING

To avoid product damage, personal injury, or even possible death, carefully read, understand, and follow all the instructions in the Installation and Operation manual and on the water heater before installation, operation, or service.

Hubbell cannot anticipate every circumstance that might involve a potential hazard and our warnings are, therefore, not all-inclusive. Proper installation, operation, and service is your responsibility.

You must be satisfied that the operation and settings of the water heater are safe for you and for others.

Pour éviter un dommage au produit, une blessure personnelle ou même la mort, lire avec soin, comprendre et suivre toutes les instructions dans le manuel d'installation et de fonctionnement et sur le chauffe-eau avant l'installation, le fonctionnement ou l'entretien.

Hubbell ne peut pas prévoir toutes les circonstances qui pourraient impliquer un danger potentiel et par conséquent, nos avertissements ne comprennent pas tout. L'installation, le fonctionnement et l'entretien correct sont votre responsabilité.

Vous devez être certain que le fonctionnement et les réglages du chauffe-eau sont sécuritaires pour vous et pour les autres.

IGT-LBL-0001-01

SAFETY

Hazards are identiﬁ ed by the “Safety Alert Symbol” and followed by a signal word such as “DANGER”, “WARNING”, or “CAUTION”.

DANGER

Indicates an imminently hazardous situation which, if not avoided, will result in death or serious injury. This signal word is limited to the most extreme situations.

WARNING

Indicates a potentially hazardous situation which, if not avoided, could result in death or serious injury.

CAUTION

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

Safety Alert Symbols

This is the safety alert symbol. It is used to alert you to potential personal injury hazards. Obey all safety messages that follow this symbol to avoid possible injury or death.

This manual contains DANGERS, SAFETY INSTRUCTIONS, CAUTIONS, IMPORTANT NOTICES, and NOTES which must be followed to prevent the possibility of improper service, damage to the equipment, personal injury, or death. The following key words call the readers’ attention to potential hazards.

NOTICE

Indicates that equipment or property damage can result if instructions are not followed.

SAFETY INSTRUCTIONS

Safety instructions (or equivalent) signs indicate specific safetyrelated instructions or procedures.

NOTE: Contains additional information important

to a procedure.

IMPORTANT

Indicates that equipment or property damage can

result if instructions are not followed.

NOTE: Provides additional information that is

helpful for installation or operation of the water heater.

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Safety Icon Nomenclature

Icons signal a type of hazard and warn of personal protection issues, prohibited actions, and hazard avoidance.

SAFETY

Slipping injury

Tripping injury

Personal Protection

Read the manual

Eye protection

High water temperature

Fill water tank before connecting to electrical power

Disconnect power

Connect power

Close gas valve

Open gas valve

Wait ﬁ ve minutes

Use two people when lifting heavy objects

Prohibited Actions

No open ﬂ ame

Use proper tools

Do not use if submerged under water

No liquid around electrical component

Fire hazard

Explosion hazard

Provide proper ventilation

Operation and Installation Warnings

To avoid serious injury or death, read, understand and follow all the precautions listed here.

DANGER

Vapors from flammable liquids will explode and can cause a fire, resulting in personal injury or death. The water heater has a burner that can come on at any

liquids around the water heater.

for safe operation. Inspect the exterior exhaust gas outlet port and fresh air inlet port on a regular basis to ensure they are functioning properly.

the exhaust gases with a fully functional and calibrated flue gas analyzer.

time and ignite vapors. DO NOT use or store flammable

Improper venting can cause a build-up of carbon monoxide. Breathing carbon monoxide can result in brain damage or death. DO NOT operate the water heater unless it is properly vented to the outside and has an adequate fresh air supply

A concentration of carbon monoxide as small as 0.04% (400 parts per million) in the air can be fatal. When making high fire

low fire adjustments, CO levels must be monitored

or using a flue than 400 ppm is exceeded at any time during operation.

Adjusting the “low fire offset” or the “main flow restrictor” 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

gas

analyzer

such that a CO level of no more

Hazard Avoidance

Disconnect power electrical hazard

Electrocution or shock hazard

Hot liquid, burn hazard

Hot surface

Lifting hazard

Pressurized liquid

Safety alert symbol

WARNING

The Hubbell water heater must be installed by a licensed plumber, licensed gas fitter, and/or professional service technician. Improper installation and/or operation can cause a potentially hazardous situation, which, if not avoided, could result in serious injury or

death, and will void the warranty.

Proper care is your responsibility. Carefully read and understand the Operation Information in this manual before operating the Hubbell water heater.

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.

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WARNING

Do not power up the unit unless the gas and water supply valves are fully opened. Make sure the fresh air intake port and exhaust gas port are open and functional.

DO NOT attempt to install, service, or repair this water heater yourself. There are no serviceable parts which can be changed by the owner. Contact a qualified technician if your water heater needs repair or maintenance. Ask your gas

supplier

restrict or block the flow in or out of the

is repaired by a qualified technician.

is being used by other persons.

for a list of qualified service providers.

Keep the area around the water heater clean and free of all materials that can burn. DO NOT store or place gasoline, oils, spray paint, or other flammable products near the water heater.

DO NOT use spray paint, hair spray, or any other flammable spray near the water heater or near the exterior fresh air inlet port. DO NOT place any items in or around the exterior exhaust gas outlet port and/or fresh air inlet port that could

vent system.

DO NOT store or place newspapers, laundry, or other combustible items near the water heater or the exterior exhaust gas outlet and/or fresh air inlet port.

The owner should inspect the system monthly for damage, water stains, signs of rust, corrosion, and exhaust vent and air intake blockage. If inspection of the unit shows signs of damage, the water heater should be shut off until the

DO NOT allow children to operate this unit. DO NOT use this unit if it does not appear to be operating correctly. A qualified technician should service and inspect the water heater annually.

The water heater temperature is factory set to 120°F (49°C). To avoid scalding, always check the temperature of the hot water before bathing, showering, washing, etc. DO NOT adjust the water temperature while the Hubbell water heater

SAFETY

problem

IMPORTANT

Do not use the water heater if any part has been under water. Immediately call a qualified service technician and have the unit inspected. Replace any components that have been under water.

The Hubbell water heater is equipped with a three prong plug. It should only be plugged directly into a properly grounded three prong receptacle. DO NOT remove the ground prong from the plug.

DO NOT alter or modify the water heater or water heater controls. This can be dangerous and will void the warranty.

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SAFETY

Always read and follow all warnings on water heater safety decals and in the manual. If the Installation and Operation manual is missing, go to our website at: www.hubbellheaters.com or contact Hubbell (203-378-2659) for a replacement.

DANGER

Use this water heater at your own risk. The outlet temperature of the Hubbell water heater is factory preset to 120°F (49°C). The temperature can only be changed by using the control panel on the front of the water heater.

particular faucet, temperature limiting valves can be installed by your service professional.

Hot water temperature over 125°F (52°C) can cause severe burns instantly or death from scalding. Children, disabled, and elderly are at the highest risk of being scalded. Do not leave children or the inf rm unsupervised. Check temperature of hot water before taking a shower or bath. To control water temperature to a

WARNING

Do not store or use gasoline or other f ammable vapors and liquids in the vicinity of this or any other appliance. Flammable vapors can ignite and cause serious damage or injury.

This water heater is factory preset for NATURAL GAS.

For propane conversion, refer to the manual. Connecting the water heater to any other gas supply can result in property damage, serious injury, and even death.

Suitable for water (potable) heating and

space heating. The water heater MUST NOT be connected to any heating system or components previously used with a nonpotable water heating appliance.

Do not use toxic chemicals, such as used for boiler

treatment, in potable water space heating systems.

This appliance must be installed in accordance with

local codes or, in the absence of local codes, the National Fuel Gas Code, ANSI Z223.1/NFPA 54 or the CSA B149.1, Natural Gas and Propane Installation Code.

A pressure relief valve complying with the Standard for

Relief Valves for Hot Water Supply Systems, ANSI Z21.22 or CAN1-4.4 Temperature, Pressure, Temperature and Pressure Relief Valves and Vacuum Relief Valves must be installed in a proper outlet port of water heater at the time of installation according to local codes.

No valve is to be placed between the relief valve and the

water heater.

The discharge from the temperature/pressure relief valve

should be directed to the ground or into a drain system which will prevent a burn hazard or property damage. The piping must not have a reducing coupling or other restriction in the discharge line. The discharge line must be installed to allow complete drainage of both the valve and line.

If the system requires water for space heating at

temperatures higher than required for other uses, a mixing valve must be installed to temper the water for those other uses in order to reduce scald hazard potential.

The pressure relief valve must not be removed or

plugged.

Hubbell www.hubbellheaters.com

Pressure Relief Valve

Phone: 203-378-2659

IGT-LBL-0002-01

FOR YOUR SAFETY READ BEFORE OPERATING

DANGER

If you do not follow these instructions exactly, a f re or explosion may result, causing property damage, personal injury, or loss of life.

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 burner manually.

settle on the f oor.

service technician. Force or attempted repair may result in a f re or explosion.

system and any gas control which has been under water.

If water heater is not operating, follow these instructions. This appliance is equipped with an ignition device which automatically lights the burner. Do not try to light the burner manually.

If water heater will not operate, follow instructions “To Turn Off Gas To Water Heater” and call your service technician or gas supplier.

1. Turn OFF electrical power to water heater.

2. Turn manual gas shut-off valve to OFF position.

BEFORE OPERATING, smell all around the water

heater area for gas. Be sure to smell next to the f oor because some gas is heavier than air and will

WHAT TO DO IF YOU SMELL GAS

• Do not try to light any appliance.

• Do not touch any electric switch; do not use any phone in your building.

• Immediately call your gas supplier from a neighbor’s phone. Follow the gas supplier’s instructions.

• If you cannot reach your gas supplier, call the f re or police department.

Use only your hand to turn 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 qualif ed

Do not use this water heater if any part has been under

water. Immediately call a qualif ed service technician to inspect water heater and replace any part of control

OPERATING INSTRUCTIONS

STOP! Read the safety information above on this label.

Never use water heater unless it is completely f lled with water.

Turn OFF electrical power supply to the water heater.

Turn gas shut-off valve clockwise to “OFF” position. Do not force.

Wait f ve (5) minutes to clear out any gas. If you then smell gas, STOP! Follow step “B” above on this

label. If you don’t smell gas, go to next step.

Turn manual gas shut-off valve to “ON” position.

Turn ON electrical power to unit.

Wait until default temperature (120°) is displayed. Set desired water temperature. Turn on hot water faucet.

TO TURN OFF GAS TO WATER HEATER

Page 9

SAFETY

Toujours lire et suivre tous les avertissements sur les décalcomanies de sécurité sur le chauffe-eau et dans le manuel. Si le manuel d'installation et de fonctionnement n'est pas disponible, visiter le www.hubbellheaters.com ou contacter Hubbell (203) 378-2659 pour un remplacement.

DANGER

Utiliser ce chauffe-eau à vos propres risques. La température de sortie du chauffe-eau Hubbell est réglée en usine à 49 °C (120 °F). La température peut être modifiée seulement en utilisant le panneau de commande à l'avant du chauffe-eau.

Une température d'eau chaude de plus de 52 °C (125 °F) peut causer des brûlures sévères instantanément ou la mort par ébouillantage. Les enfants, les personnes handicapées et les personnes âgées sont les plus à risque d'être ébouillantées. Ne pas laisser les enfants ou les infirmes sans supervision.

Vérifier la température de l'eau chaude avant de prendre une douche ou un bain. Des vannes régulatrices de température peuvent être installées par votre professionnel d'entretien afin de contrôler la température de l'eau sur un robinet en particulier.

AVERTISSEMENT

Ne pas entreposer ou utiliser de gazoline ou autres vapeurs ou liquides inflammables à proximité de cet appareil

Vapeurs inflammables

Ce chauffe-eau est préréglé en usine pour le GAZ NATUREL. Pour la conversion au propane, se référer au

manuel. Connecter le chauffe-au à toute autre alimentation en gaz peut causer un dommage à la propriété, une blessure sérieuse et même la mort.

Convient pour le chauffage de l'eau (potable) et le chauffage

des locaux. Le chauffe-eau NE DOIT PAS être connecté à un

système de chauffage ou à des composants utilisés pour un appareil de chauffage d'eau non potable.

Ne pas utiliser de produits chimiques toxiques, comme

ceux utilisés pour le traitement de chaudière, dans des

systèmes de chauffage de locaux et d'eau potable.

Cet appareil doit être installé conformément aux codes

locaux, ou , en l'absence de codes locaux, selon le National

Fuel Gas Code, ANSI Z223.1/NFPA 54 ou le Code d'installation du gaz naturel et du propane, CSA B149.1.

Une soupape de surpression conforme à la norme Relief

Valves for Hot Water Supply Systems, ANSI Z21.22 ou

CAN1-4.4 Temperature, Pressure, Temperature and Pressure Relief Valves and Vacuum Relief Valves doit être installée dans le bon port de sortie du chauffe-eau au moment de l'installation conformément aux codes locaux.

Aucune vanne ne doit être placée entre la soupape de

surpression et le chauffe-eau.

La décharge de la soupape de température/surpression

devrait être dirigée vers le sol ou dans un système de drain

qui empêchera un risque de brûlure ou un dommage à la propriété. La tuyauterie ne doit contenir aucun raccord réducteur ou autre restriction dans la ligne de décharge. La ligne de décharge doit être installée afin de permettre un drainage complet de la vanne et de la ligne.

Si le système exige de l'eau pour le chauffage de locaux à

des températures plus élevées que celles pour d'autres

usages, une vanne de mélange doit être installée pour tempérer l'eau pour ces autres usages afin de réduire la possibilité de blessure par ébouillantage.

La soupape de surpression ne doit pas être retirée ou

bouchée.

Hubbell www.hubbellheaters.com

ou autre. Les vapeurs inflammables peuvent s'enflammer et causer un dommage sérieux ou une blessure.

Soupape de surpression

Téléphone: 203-378-2659

GT-LBL-0003-01

POUR VOTRE SÉCURITÉ, LIRE AVANT D'UTILISER

DANGER

Si vous ne suivez pas ces instructions exactement, un incendie ou une explosion pourrait résulter causant des dommages à la propriété, une blessure personnelle ou une perte de vie.

Ce chauffe-eau n'a pas de pilote. Il est muni d'un

Ne pas essayer d'allumer aucun appareil•

• Ne toucher aucun interrupteur électrique; n'utiliser aucun

•

Si le chauffe-eau ne fonctionne pas, suivre ces instructions. Cet appareil est muni d'un dispositif d'allumage qui allume automatiquement le brûleur. Ne pas essayer d'allumer le brûleur manuellement.

Si le chauffe-eau ne fonctionne pas, suivre les instructions « Pour arrêter l'alimentation en gaz au chauffe-eau » et appeler votre technicien d'entretien ou votre fournisseur de gaz.

1. METTRE HORS FONCTION l'alimentation électrique au chauffe-eau.

2. Tourner la vanne d'arrêt manuelle du gaz à la position d'arrêt (OFF).

dispositif d'allumage qui allume automatiquement le brûleur. Ne pas essayer d'allumer le brûleur manuellement.

AVANT D'UTILISER, sentir tout autour du chauffe-eau pour détecter une odeur de gaz. S'assurer de sentir près du plancher parce que certains gaz sont plus lourds que l'air et retombent sur le plancher.

QUE FAIRE SI VOUS SENTEZ DU GAZ

téléphone dans votre édifice. Appeler immédiatement votre fournisseur de gaz à partir du

téléphone d'un voisin. Suivre les instructions du fournisseur de gaz. Si vous ne pouvez pas rejoindre votre fournisseur de gaz, appeler

le service d'incendie ou de police.

Utiliser seulement votre main pour tourner la vanne d'arrêt manuelle du gaz. Ne jamais utiliser d'outils. Si la vanne d'arrêt manuelle du gaz ne peut pas être tournée

à la main, ne pas essayer de la réparer, appeler un technicien d'entretien qualifié. Une réparation forcée ou tentée pourrait causer un incendie ou une explosion.

Ne pas utiliser ce chauffe-eau si une partie de celui-ci a

été sous l'eau. Appeler immédiatement un technicien

d'entretien qualifié pour inspecter le chauffe-eau et

remplacer toute partie du système de commande et toute commande de gaz qui a été sous l'eau.

INSTRUCTIONS DE FONCTIONNEMENT

ARRÊTEZ! Lire les renseignements de sécurité

ci-dessus sur cette étiquette.

Ne jamais utiliser le chauffe-eau à moins qu'il soit

entièrement rempli d'eau.

METTRE HORS FONCTION l'alimentation électrique au

chauffe-eau.

Tourner la vanne d'arrêt manuelle du gaz dans le sens

des aiguilles d'une montre à la position d'arrêt (OFF).

Ne pas forcer.

Attendre cinq (5) minutes pour laisser le gaz s'évaporer.

Si vous sentez du gaz, ARRÊTEZ! Suivre l'étape « B »

ci-dessus sur cette étiquette. Si vous ne sentez pas de

gaz, passer à l'étape suivante.

Tourner la vanne d'arrêt manuelle du gaz à la position

de fonctionnement (ON).

METTRE EN FONCTION l'alimentation électrique à

l'appareil

Attendre jusqu'à ce que la température

par défaut (120°) soit affichée. Régler la température

désirée pour l'eau. Ouvrir le robinet d'eau chaude.

POUR ARRÊTER L'ALIMENTATION

EN GAZ AU CHAUFFE-EAU

Page 10

TECHNICAL SPECIFICATIONS

Parameters

Type

Fuel

GX200 GX200P GX250 GX250P

Indoor, Wall hung, Fully Condensing

Preset for NG / LP Convertible

Models

Minimum / Maximum Input (Btu/h)

Combustion Efficiency

98%

Thermal Efficiency

Energy Factor

Dimensions H x W x D (inches)

Water Inlet / Outlet Connection

Gas Inlet Connection

Minmum Flow Rate

Ignition

Venting Type

Venting Materials

Max 3” Vent Length - Single Pipe / Power Vent

Max 3” Vent Length - Two pipe / Direct Vent

Max 2” Vent Length - Single Pipe / Power Vent

(2” not allowed at elevations above 4,000 ft)

Max 2” Vent Length - Two Pipe / Direct Vent (2”

not allowed at elevations above 4,000 ft)

Common Venting

No minimum flow rate for "P" models / 0.6 GPM

Direct Vent (2 pipe - intake & exhaust), Power vent (1 pipe - exhaust only)

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

200 ft, deduct 5 ft per 90° elbow 130 ft, deduct 5 ft per 90° elbow

100 ft, deduct 5 ft per 90° elbow 65 ft, deduct 5 ft per 90° elbow

26 ft, deduct 5 ft per 90° elbow

21 ft, deduct 5 ft per 90° elbow

25.9 x 17.5 x 14.2 (3.7 cu. ft)

3/4" NPT 3/4" NPT

Electronic Spark Ignition

Yes

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

Safety

Temperature Monitor, Blocked Vent Detector, Water Leak Detector, Water Shut-Off

Valve, 2X10A Fuse, Dual Flame Sensing

Water Pressure Min / Max (PSI) NG/LP- Minimum Static Gas Pressure 1/2" NG/LP- Minimum Static Gas Pressure 3/4"

NG/LP - Maximum Static Gas Pressure

Gas Pressure for Adjustments

Electrical

Power Consumption

Features

5" (non-corrugated, black iron) 6" (non-corrugated, black iron)

2.5" (non-corrugated, black iron)

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

GX200 GX200P GX250 GX250P

30 / 150

14”

8" for NG, 11" for LP

120V AC, 60 Hz

Recirculation / Tank Loading No-Pump Built-In Pump No-Pump Built-In Pump

Cascading

Heat Exchanger

Performance

Hot Water Capacity (35F Rise) Hot Water Capacity (45F Rise) Hot Water Capacity (77F Rise)

GX200 GX200P GX250 GX250P

10.8

8.4

5.0

Domestic Mode Temp. Settings

Commercial Mode Temp. Settings

Warranty (with recirculation)

Note: 1Due to Hubbell's Policy of continuous product improvements, design, and technical specifications are subject to change

Energy Star and Low NOx are applicable to GX200 and GX200P models.

Residential - Heat Exchan

Commercial - Heat Exchanger coil – 6 years, Parts – 5 years, Labor – 1 year

Masterless, 10 units

Expandable, Stainless 316L

100 – 140°F 100 – 185°F

er coil - 15 years, Parts – 5 years, Labor – 1 year

000,052/000,03059,991/000,03

%29%49 A/N39.0

89098909)sbl(thgieW

N/A

13.2

10.3

6.0

Page 11

TECHNICAL SPECIFICATIONS

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

Required Mounting Clearances

Location From

Combustibles

Top 6” (15.2 cm) 2” (50.8 cm) 12” (30.4 cm)

Back

5/8” (15.8 mm) 5/8” (15.8 mm) 5/8” (15.8 mm)

Sides 1” (25.4 mm) 1/2” (12.7 mm) 5/8” (15.8 mm)

Front 2” (5.1 cm) 2” (5.1 cm) 30” (76.2 cm)

Bottom 12” (30.4 cm) 12” (30.4 cm) 12” (30.4 cm)

Service clearances are suggested dimensions to allow for normal service of the unit.

Installing (hanging) the unit with the included brackets automatically sets this dimension.

CO2 and CO Standards

Description CO2 Range (%) Max. CO Level (ppm)

High Fire 8.8% to 9.1% < 200 ppm

Low Fire 8.6% to 8.9% < 60 ppm

High Fire 8.8% to 9.1% < 200 ppm

Low Fire 8.6% to 8.9% < 60 ppm

From Non-

Combustibles

Natural Gas

LP Gas

Service

Clearance

Top Connections

Description Specification

Gas Supply Inlet Connection 3/4” Male NPT

Cold Water Inlet Connection

Hot Water Outlet Connection

3/4” Female NPT

Exhaust Gas Vent 3” O.D. PVC Schedule 40

Fresh Air Intake 3” O.D. PVC Schedule 40

Requires a 3” to 2” reducer when using 2” venting pipe.

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

Bottom Connections

Description Specification

Drain Connection 3/4” Female NPT

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

Power Supply 120V AC Power Cord

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

Max Vent Length For Various Duct Sizes And

Number Of Units

Duct Size and Model

Number of Units

Venting

Type

2” 3” 4” 6” 8”

GX200

(P)

GX200

(P)

GX250(P) GX200(P) GX250(P) GX200(P)

GX250

(P)

GX200(P) GX250(P)

1 pipe - PV 26 200 130 200 130

2 pipe - DV 21 100 65 100 65

1 pipe - PV 200 130

2 pipe - DV 100 65

1 pipe - PV 100 30 200 130

2 pipe - DV 50 30 100 65

1 pipe - PV 200 130

2 pipe - DV 100 65

1 pipe - PV 200 130

2 pipe - DV 100 65

1 pipe - PV 200 130

2 pipe - DV 100 65

1 pipe - PV 150 45

2 pipe - DV 75 45

1 pipe - PV 100 30 200 130

2 pipe - DV 50 30 100 65

1 pipe - PV 200 130

2 pipe - DV 100 65

1 pipe - PV 200 130

2 pipe - DV 100 65

PV = Power Vent DV = Direct Vent

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

Do not exceed the above set limits.

Page 12

EXHAUST

HOT WATER

OUT

GAS LINE

CHECK

VALVE

TEMPERATURE

AND PRESSURE

VALVE

CHECK

VALVE

INLET

SPECIFICATIONS (NOMENCLATURE)

HOT WATER

TO USAGE

COLD WATER

INLET

GATE VALVE

GAS LINE

WATER TRAP

STRAINER

HOT

WATER

STORAGE

TANK

POINT

CHECK

VALVE

GAS LINE

COLD WATER

CONTROL

PANEL

WATER HEATER

DRAIN VALVE

IH-01

CONDENSATE

DRAIN

Typical installation of GX200P piped with storage tank.

DIP Switch Locations on Control Board

DIP Switch Settings (Réglages des commutateurs DIP)

SW1

SW2

Propane

Cascade Termination ON

(Terminaison en cascade ON)

Natural Gas

(Gaz naturel)

Cascade Termination OFF

(Terminaison en cascade OFF)

Page 13

DIMENSIONAL SPECIFICATIONS

Selecting a Location

IH-79

68,86

[2 3/4”]

155,4

[6 1/8”]

35,36

[1 3/8”]

442,6

[17 7/16”]

Top View

Left

Side

Right

Bottom View

361 ,3

[14 1/4”]

Mounting

Wall Surface

347,3

[13 11/16”]

Exhaust Port

[9/16”]

3” PVC

64,6

[2 9/16”]

Hot Water

3/4 NPT

Gas Inlet

102,4

[4 1/8”]

Out

3/4 NPT

185,1

[7 5/16”]

59,11

[2 5/16”]

57,79

[2 1/4”]

198,7

[7 25/32”]

Drain Port/PRV

107,1

[4 7/32”]

Front View

3/4-NPT

Power Cord

Condensate Drain

59,94

[2 3/8”]

L/H Side View

Page 14

QUICK REFERENCE INSTALLATION GUIDE

The quick reference illustrations show the installation of two GX200P water heaters connected together

with a storage tank. Installation of a single unit or up to five units is basically the same. When installing multiple units, refer to the Multiple Units section for additional information.

1. Select a location. Note that the piping can be conﬁ gured to enter or exit the unit from either the left or right side, as viewed from the front.

2. Mount the water heater(s) to the wall.

Attach two 2x4 mounting blocks (at least 23” for a single unit or 46” long for two units) to the wall. The uppermost mounting boards should be at the desired height for the top of the unit.

IH-80

e. Hang the unit on the mounting bracket. If multiple

units are installed, the spacing between the units should be approximately 6”.

IH-81

3. Install the gas lines, as shown in the illustration.

Attach a second mounting block 14” (center to center) below the upper mounting block.

c. Attach metal mounting bracket(s) to the upper

mounting block approximately 3” on either side of the center and 1/2” down from the top of the mounting block.

Adjust and tigthen the bottom bracket to the units so that the unit to hangs vertically on the wall.

IH-82

a. Temporarily place a short section of 3” schedule

40 PVC pipe on one of the air inlets in order to judge clearance allowances as the gas piping is assembled.

b. Due to limited wall clearance, connect the union as

your ﬁ nal step of gas piping.

c. Check for gas leaks at this point in the assembly

process.

Page 15

QUICK REFERENCE INSTALLATION GUIDE

Water Connections

4. Install the combustion air inlet and ﬂ ue gas outlet PVC piping.

Note: The inlet and outlet pipes from the unit are 3” diameter while the header piping is 4” diameter, as shown in the illustration. The larger header piping is required whenever multiple units are installed.

6. Install and connect the cold water lines.

IH-85

7. Connect and route the condensate trap and drain line to an appropriate discharge site or drain.

IH-83

5. Install and connect the hot water lines. If an optional hot water storage tank is required, connect the hot water lines to this tank. If required, install a pressure relief valve or a temperature and pressure relief valve.

IH-84

IH-85a

8. Verify gas pressure.

9. Connect the 120 Volt power supply.

10. Test ﬁ re the unit by opening all hot water faucets.

Page 16

Gas Connection

PREPARATION BEFORE INSTALLATION

Selecting an Installation Site

IMPORTANT When installing this 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.

1. Select an interior location for the installation. Each installation is unique; therefore, take the time to ﬁ nd 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 furthest ﬁ xture. Insulate the hot water supply and recirculation lines.

d. Select a location away from foot trafﬁ c and away

from areas where dust, debris, chemical agents, or other combustible materials could accumulate.

e. Allow sufﬁ cient space for service and maintenance

access to all gas, water, and drain connections.

f. Make sure the location meets all building code

requirements.

IMPORTANT Reduce the maximum equivalent length by 5 feet

per 90° elbow and by 2 feet per 45° elbow. Intake and exhaust venting pipes have the same allowable lengths. Do not exceed these set limits.

EXAMPLE: A 3” vent line or fresh air intake line

(Model GX200) with the six 90 degree elbows

would be limited to a length of 70 feet in a twin

pipe configuration

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

connections.

The water heater produces a signiﬁ cant 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 Hubbell will not be responsible for any resulting water damages that may occur as a result. For additional information, refer to the Install Condensate Drain section.

The water heater should be located in an area where leakage from the unit or water pipes will not result in damage to the area around the appliance or to lower ﬂ oors of the structure. When such locations cannot be avoided, it is recommended that a suitable drain pan, adequately drained, be installed under the water heater. The pan must not restrict combustion air ﬂ ow.

g. Make sure the wall surface the water heater is

mounted onto will support the weight of the unit.

SAFETY INSTRUCTIONS

The Hubbell .. 200 and GX250 water heaters weigh 90 lbs. The GX200P and GX250P weigh 98 lbs.

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 sofﬁ t vents, crawl space vents, or other areas where condensate (water vapor) could cause damage or create a hazard.

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

from the exhaust vent.

Contaminated or dirty air drawn into the intake pipe can damage the water heater. The Hubbell warranty does not cover damage caused by airborne contaminants.

Page 17

PREPARATION BEFORE INSTALLATION

4. Locate the water heater and all water pipes in an area where the ambient temperature always remains above 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 completely drain the unit.

Damage caused by freezing water is not covered by the Hubbell warranty.

a. When the water heater is connected to an electrical

power supply, it will automatically prevent the water inside the unit from freezing.

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

the water in surrounding pipes from freezing.

water valve. Open the drain valve and

5. Select an appropriate location for the combustion air and exhaust pipes to exit the house. Use the diagram and chart on the next page to make this determination.

High Elevation Installations

For operation at elevations above 2,000 feet, Hubbell model ratings should be reduced by 4% for each 1,000 feet above sea level.

Water Quality

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 below. If your water contains contaminants higher than outlined by EPA, then water treatment is recommended and additional maintainence may be required. If you suspect that your water is

contaminated in any way or water heater errors occur, discontinue use of the water heater and contact an authorized technician or licensed professional.

Contaminant Maximum Allowable Level

Total Hardness 200 mg/l (12 grains/gallon)

Aluminum 0.05 to 0.2 mg/l

Chloride 250 mg/l

Copper 1.0 mg/l

Iron 0.3 mg/l

Manganese 0.05 mg/l

pH 6.5-8.5

Sulfate 205 mg/l

Total Dissolved Solids (TDS) 500 mg/l

Zinc 205 mg/l

Page 18

Venting Connections

IH-31

Inside Corner Detail

Air Inside Inlet

Vent Terminal

Area Where Terminal is Not Permitted

PREPARATION BEFORE INSTALLATION

Fixed

Closed

Operable

Fixed

Closed

Operable

ANSI Z223.1 / NFPA 54 for USA and CAN/CSA B149.1 for Canada - Venting Requirements

USA Clearance Canada Clearance

Item Description Specification Specification

A Above grade, veranda, porch, deck, or balcony 1 ft 1 ft

B Window or door that may be opened 1 ft** 3 ft

C Permanently closed window * *

D Vertical clearance to a ventilated soffit, eves, or overhang 3 ft*** *

E Unventilated soffit, eves, or overhang 3 ft*** *

F Outside corner * *

G Inside corner * *

H Each side of centerline extended from meter/regulator * 3 ft within a height 15 ft above the

meter/regulator assembly

I Service regulator vent outlet * 3 ft

J Non mechanical air supply inlet or combustion air inlet

to any other appliance 1 ft** 3 ft

K Mechanical air supply inlet 3 ft above if 6 ft

within 10 ft

horizontally

L Above paved sidewalk or paved driveway on public property * 7 ft

M Under veranda, porch, deck, or balcony * 1 ft

Not specified in ANSI Z223.1 / NFPA 54 or CAN/CGA-B146.

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

4 feet (1.2 m) below or to the side of opening and 1 foot (300 mm) above opening.

*** Hubbell recommendation.

Page 19

WALL MOUNTING

Secure the unit to the wall using either two wood mounting blocks or one piece of 3/4” plywood, as described in this section.

Mounting Block Installation Method

1. Attach two 2x4 or 2x6 mounting blocks (horizontal framing), at least 18 inches long, to the wall.

a. In wood or steel construction, use adequate wood/

metal screws and secure the mounting blocks with at least two screws in each vertical wall stud (four screws total).

b. In concrete block or solid concrete wall construction,

attach the mounting blocks with at least four masonry screws or suitable masonry wall anchors in each mounting block.

IH-26

CAUTION

Lifting Hazard According to the National Institute for Occupational

Safety and Health, the recommended maximum safe lifting weight is 51 pounds, 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 80 pounds.

3. With assistance, hang the unit on the upper wall

bracket, interlocking bracket (1) on the back of the unit and wall bracket (2).

4. Install two appropriately sized wood screws in lower

bracket (3) to secure the unit to the wall.

5. 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 mounting blocks.

21”

2. Level upper bracket (2) and attach it to the mounting block with at least four appropriately sized wood screws (do not use drywall screws).

SAFETY INSTRUCTIONS

The Hubbell water heaters weigh 90 to 100 lbs (40.8 to 45.4 kg) and must be securely attached to the wall. Mounting hardware is included and should be used to mount the unit.

Plywood Installation Method

1. Mount a piece of 3/4” plywood (at least 32” high x 20” wide) to the wall.

a. In wood or steel construction, use adequate wood/

metal screws and secure the plywood with at least two screws in each vertical wall stud.

b. In concrete block or solid concrete wall construction,

attach the plywood with at least four masonry screws or suitable masonry wall anchors.

IH-27

20”

8”

32”

2. Follow Steps 2 through 5 in the above procedure to complete the installation.

Page 20

GAS CONNECTION

WARNING

FIRE AND/OR EXPLOSION HAZARD 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.

Always match the water heater with the type of gas supplied to the unit (natural gas or LP gas). 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.

Determine if the Hubbell water heater will use natural gas (factory preset) or LP (propane) gas.

a. To convert the unit to propane, refer to the Propane

(LPG) Conversion section in this manual.

b. Make sure your gas supply matches the rating decal

located on the side of the water heater.

2. Make sure the gas pressure meets the requirements for the unit, as shown in the tables.

b. Measure the length of the gas supply line from the

gas meter to the water heater or other appliances requiring gas.

c. Use the Gas Pipe Sizing tables in this manual or

refer to the gas line manufacturers sizing information to determine the correct diameter for the supply pipe.

d. The diameter of the gas lines, shown in the

illustration, will vary according to the speciﬁ c installation requirements.

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

4. Install a gas union connection with a short piece of 3/4” NPT pipe.

5. Following local building codes, install a manual shut-off valve.

Connect the manual shut-off valve to the gas supply line. Also install a dirt pocket drip leg off of the main supply line, as shown.

Models

Parameters

NG/LP- Minimum Static

Gas Pressure (1/2")

NG/LP- Minimum Static

Gas Pressure (3/4")

NG/LP - Maximum

Static Gas Pressure

Gas Pressure for

Adjustments

Make sure the supply line is correctly sized for the

GX200 GX00P GX250 GX250P

5” (non-corrugated,

black iron)

2.5” (non-corrugated, black iron)

8” for NG, 11” for LP

6” (non-corrugated,

black iron)

14”

maximum output of the water heater model being installed. The Hubbell water heater should be the

f r st appliance to be connected to the gas supply line.

a. Determine the gas requirement of the water heater(s)

and other appliances requiring gas. The supply line must be sized according to the COMBINED total maximum BTUH draw for all the appliances as if they were all operating at the same time.

1” 1” 1”

Manual

Main Supply Line

Shut-off

Valve

Union

Drip leg

7. Leak test the gas line piping before placing the unit in operation. Only use approved leak detector liquid solutions to check for leaks.

IMPORTANT Do not fire (operate) the water heater until all connections have been completed and the heat

exchanger is filled with water.

1/2”

Gas

Meter

IH-77

Typical installation when using 1/2” gas line.

Home

Wall

Less then 40’

Hubbell

1/2”

Laundry Stove

Page 21

GAS PIPE SIZING TABLES

Gas Pipe Sizing

This information is for reference only. Refer to gas pipe manufacturer specifications for actual delivery capacity. The DOE standard for Natural Gas is 1100 BTU/ft3. Contact the local gas supplier for actual BTU/ft3 rating.

1/2” Black Iron Sizing

The following table shows gas supply in cubic feet per hour (CFH) assuming a specific gravity of 0.6 for Natural Gas, 0.585 for propane, pressure drop of 4.6” WC, and 5.0” WC. Contact your gas supplier for BTU/ft3 ratings. Use 1000 BTU/ft3 for estimates.

Length (Including fittings)

Gas Pipe Size 5 10 15 20 25 30 35 40

Natural Gas 1/2” 571 404 330 286 255 233 216 202

LP 1/2” 578 409 334 289 259 236 219 204

Natural Gas Pipe Sizing

Maximum Natural Gas Delivery Capacity — Length of Black Iron Pipe in Feet

Pipe Cubic Feet per Hour (0.60 Specific gravity, 0.5 WC Pressure Drop) Size 10 20 30 40 50 60 70 80 90 100 150 200

3/4” 363 249 200 171 152 138 127 118 111 104 84 72

1” 684 470 377 323 286 259 239 222 208 197 158 135 1-1/4” 1404 965 775 663 588 532 490 456 428 404 324 278 1-1/2” 2103 1445 1161 993 880 798 734 683 641 605 486 416

2” 4050 2784 2235 1913 1696 1536 1413 1315 1234 1165 936 801

Maximum Natural Gas Delivery Capacity — Length of Corrugated Stainless Steel Pipe in Feet

Pipe Cubic Feet per Hour (0.60 Specific gravity, 0.5 WC Pressure Drop) Size 10 20 30 40 50 60 70 80 90 100 150 200

3/4” 206 147 121 105 94 86 80 75 71 67 55 48

1” 383 269 218 188 168 153 141 132 125 118 94 82 1-1/4” 614 418 334 284 251 227 209 194 181 171 137 116 1-1/2” 1261 888 723 625 559 509 471 440 415 393 320 277

2” 2934 2078 1698 1472 1317 1203 1114 1042 983 933 762 661

LP Gas Pipe Sizing

Maximum LP Gas Delivery Capacity — Length of Black Iron Pipe in Feet

Pipe Thousands of BTU/Hour, 0.5 WC Pressure Drop Size 10 20 30 40 50 60 70 80 90 100 125 150 200

3/4” 567 393 315 267 237 217 196 185 173 162 146 132 112

1” 1071 732 377 323 286 259 239 222 208 197 174 252 213 1-1/4” 2205 1496 775 663 588 532 490 456 428 404 358 511 440 1-1/2” 3307 2299 1161 993 880 798 734 683 641 605 536 787 675

2” 6221 4331 2235 1913 1696 1536 1413 1315 1234 1165 1033 1496 1260

Maximum LP Gas Delivery Capacity — Length of Corrugated Stainless Steel Pipe in Feet

Pipe Thousands of BTU/Hour, 0.5 WC Pressure Drop Size 10 20 30 40 50 60 70 80 90 100 150 200

3/4” 325 232 191 166 149 136 126 118 112 106 87 76

1” 605 425 344 297 265 241 222 208 197 186 143 129 1-1/4” 971 661 528 449 397 359 330 307 286 270 217 183 1-1/2” 1993 1404 1143 988 884 805 745 696 665 621 506 438

2” 4638 3285 2684 2327 2082 1902 1761 1647 1554 1475 1205 1045

Page 22

Fresh Air and Exhaust Piping Installation

COMBUSTION (FRESH) AIR INLET EXHAUST OUTLET CONNECTIONS

SAFETY INSTRUCTIONS

For information on combustion air, either from inside the building or from the outside, refer to the Venting section in this manual.

1. Select an approved material for the combustion air inlet. Refer to the table below for a list of approved materials. Also select the appropriate diameter of pipe based on length and number of units being installed, as shown in the tables in the Technical Speciﬁ cations section.

United States Vent Pipe Standards

Material Description

PVC Schedule 40

Vent Pipe

Material Description

Vent Pipe

Do not use cellular foam core pipe to vent exhaust gases.

CPVC Schedule 40

Approved Polypropylene

Canadian Vent Pipe Standards

Type BH Special Gas Vent Class IIA (PVC)

Type BH Special Gas Vent Class IIB (CPVC)

Type BH Special Gas Vent Class IIC (Polypropylene)

SAFETY INSTRUCTIONS

NOTE: Consult the following chart or the most recent edition of ANSI Z223.1/NFPA 54 or CAN/ CGA B149.1, as well as all applicable local codes and regulations when selecting vent pipe materials.

For installation in Canada, installer-supplied plastic vent piping must comply with CAN/CGA B149.1 and be certified to the Standard For Type BH Gas Venting Systems, ULC-S636. Components of this listed system must not be interchanged with other vent systems or unlisted pipes or fittings. All plastic components and specified primers and glues must be from a single system manufacturer and must not be intermixed with another

system manufacturer’s products

2. Install the desired conﬁ guration of pipe for the combustion air inlet. If the installation allows 2” pipe to be used for this air inlet, install at least a 6” long piece of 3” pipe with a 3” to 2” adapter.

3" Pipe

IH-70

CAUTION

TOXIC FUMES HAZARD If the inside of the pipe is not chamfered to remove all sharp edges, the O-ring seals can be damaged during installation.

into the house.

Damaged O-rings could allow combustion gases to leak

Cut a 45 degree chamfer on the inside edge of the

3” pipe. Remove any shavings.

45°

IH-70a

IMPORTANT On multiple unit installations, the piping from the water heater can be 4” or larger piping. Use the tables on page 11 to determine the diameter of the

common connecting piping between each individual water heater.

b. Apply a small amount of water or liquid soap on

the chamfered surfaces to serve as a lubricant.

Page 23

COMBUSTION (FRESH) AIR INLET EXHAUST OUTLET CONNECTIONS

c. Install the pipe over the connector and dual o- ring

seals. Ensure that the o-ring seals are seated correctly within the pipe and not pinched or pushed out of the O-ring groove.

Secure the pipe to the walls or joists using a suitable clamp (not supplied).

3. Continue the routing of the combustion air inlet.

a. For termination of the pipe to the outside, continue

installing the required pipe to a suitable outside location. Glue all connections, making sure the joints are sealed airtight.

4. Continue the routing of the exhaust gas outlet to a suitable outside location.

a. Glue all connections, making sure the joints are

sealed airtight.

b. Install all horizontal exhaust gas vents with a

minimum 2 degree (1/4” per foot) slope back toward the water heater. This allows any condensate that accumulates in the exhaust outlet to properly drain back into the unit.

5. Install suitable pipe support hangers every 4 to 5 feet, or as local building codes require.

SAFETY INSTRUCTIONS

Do not connect any other appliance vents to the water heater inlet or outlet pipes.

IH-35a

IH-36b

b. To conﬁ gure the unit for power vent, insert a 6”

section of 3” pipe with a 90° elbow.

3" Elbow

3" x 2” Reducer

3" PVC Tube

2" PVC Tube

6. If multiple units are installed, make sure the diameter of the connecting exhaust outlet is properly sized for the number of units being installed.

CAUTION

This water heater has a built-in control to limit the exhaust temperature to 149°F (65°C). As a result, the Hubbell water heater can be vented with Schedule 40 PVC. If the incoming (or recirculation return) water temperature does not exceed 150°F (66° C), the exhaust temperature will not exceed 149°F (65°C).

However, if you set the water heater at a temperature above 150°F (66°C) and you are also incorporating either an external recirculation loop or a combination heating system, the exhaust temperature can exceed 149°F (65°C). In that case, you must use Schedule 40 CPVC or Approved Polypropylene in the USA or Type BH Special Gas Vent Class IIB (CPCV) or Class IIC (Polypropylene) that conforms to ULC-S636 in Canada.

IH-69

Page 24

VENTING

Combustion Air From the Outdoors

Hubbell water heaters may be installed using a standard (direct vent) configuration or an optional (power vent) configuration.

The information in this section provides the installer with recommendations; however, venting requirements are different in the USA and Canada for installing proper exterior venting through the structure’s roof or exterior wall. Therefore, the installer should also refer to local building codes and the “Venting of Equipment” section of the latest edition of ANSI Z223.1 / NFPA 54 Natural Gas Code. In Canada, refer to the “Venting Systems and Air Supply for Appliances” section in the CAN/CGA B149.1 Natural Gas and Propane Installation Code.

Do not operate the unit in an area that will draw in air contaminated with high levels of dust, sawdust, aerosols such as paint, or other airborne contaminants.

If necessary, purchase and install appropriate air screens and follow a regular cleaning program to ensure an adequate supply of clean, outside combustion air.

SAFETY INSTRUCTIONS

The end of ducts that terminate in an attic must not be

screened.

Under-floor Combustion Air

Combustion air obtained from under-floor areas must have free opening areas to the outside equivalent to not less than twice the required combustion air opening.

Opening Requirements

Outside combustion air openings must be covered with corrosion-resistant screen or equivalent protection having not less than 1/4 inch (6 mm) openings, and not greater than 1/2 inch (13 mm) openings.

Do not use cellular foam core pipe to vent exhaust gases.

Outdoor Air

When the space in which fuel-burning appliances are located does not meet the criteria for indoor air, outside combustion air shall be supplied as specified in the following sections.

Size of Openings

When directly connected with the outdoors, or when connected with the outdoors by means of vertical ducts,

each opening must have a free area of at least 1 square inch per 4,000 Btu/per hour (550 mm2/kW) of total input rating of all appliances in the space.

Minimum Recommended Air Supply

Model / Size Area of Outside Air Vents

GX200 / 199,950

GX250 / 250,000

Attic Combustion Air

14 sq.in.

17 sq.in.

Combustion air obtained from an attic area must be in accordance with the following:

1. The attic ventilation must be sufﬁ cient to provide the required volume of combustion air.

2. The combustion air opening must be provided with a metal sleeve extending from the appliance enclosure to at least 6 inches (152 mm) above the top of the ceiling joists and ceiling insulation.

Page 25

VENTING

WARNING

TOXIC FUMES To avoid serious injury or even death from exhaust gases (carbon monoxide), make sure the water heater is properly

vented. Refer to all applicable local and national regulations, mandates, and building codes for guidelines to install proper venting.

Connections on Bottom of Unit

1. Terminate the combustion air inlet with a 90 degree

elbow (angled down) or a tee ﬁ tting.

a. On an exterior wall, use a fl ange and PVC

screen (not supplied).

b. For roof top installation, a suitable roof ﬂ ashing and

vent cap (not supplied) will be required.

2. Terminate the exhaust gas outlet on the exterior wall.

Side wall outlets must be at least 12” above ground and at least 12” apart, or as required by local building codes. In areas of high snow fall, protect the vent terminations from blockage.

b. For roof top installation, a suitable roof ﬂ ashing and

exhaust vent cap (not supplied) will be required.

12”

Exhaust

12”

IH-33

Concentric Wall Venting System

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

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

vent

Fresh air

12” USA or 18” Canada Over maximum snow level or as required by local code

Exhaust

Option A

IH-34

Exhaust

IH-34a

Side Wall Termination

NOTE: Install a mesh screen made from stainless

steel or other suitable material no smaller than 1/4”

opening on both air intake and exhaust pipes.

NOTE: Units must be installed to have an

equivalent exhaust run of 5 feet (minmum).

Intake

15”

Option C

Option B

Intake

Use screen on all openings for intake & exhaust

12” USA or 18” Canada Over maximum snow level or as required by local code

3’ Minimum

IH-51a

Concentric Roof Venting System

Exhaust

Intake

12” Minimum

12” USA or 18” Canada Over maximum snow level or as required by local code

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.

Page 26

VENTING

Combustion (All) Air From Inside the Building

Hubbell may be used in a power vent or direct vent configuration. When used in a power vent configuration, the water heater should be located in an area where there is adequate air supply from inside the building for proper combustion and ventilation. Please follow your local code or NFPA54 where applicable.

Required Volume

Minimum Recommended Air Supply

Model / Size

GX200 / 199,950 200 sq.in

GX250 / 250,000 250 sq.in

Area of Outside Air Vents

WARNING

If, at any time, the installation location could experience negative pressure, there is a possibility of cold air drafting back through the unit's heat exchanger. This situation could lead to the freezing of the heat exchanger and malfunction of the water heater.

Chimney Automation System

ENERVEX

CASV 009-315, Chimney Automation System™

Power Vent Installation Examples

12"

In Canada use 18"

Exhaust

Pipe

IH-71

Roof Flashing

Intake

Pipe

The CASV 009-315, Chimney Automation System™ is a demand controlled exhaust system designed for commercial boilers and water heaters in buildings where the exhaust is powered by a chimney fan on the exterior of the building. It maintains a precise draft by constantly adjusting the exhaust rate to meet current needs. The concept can provide substantial operating savings over gravity systems and offer significantly better draft control which reduces emissions. The CASV System can be combined with an MCAS, Modulating Combustion Air-supply System™ and can also work with a MODS, Modulating Over-draft Damper System™

For More Information on the ENERVEX System Visit: www.enervex.com

Mortar or Silicone Caulk

Exhaust Pipe

Pipe

Coupling

Wall

Thimble

Above Grade

or Snow Level

Positive slope of 1/4" per foot (25%)

Vent Terminal with 1/2” Mesh Protective Screen Inside

12" Min.

IH-72

Page 27

INSTALL HOT WATER LINES

Install and connect the hot water lines. If an optional hot water storage tank is required, connect the hot water lines to this tank also.

4. Install and route a 3/4” discharge pipe from pressure relief valve (4) to within 6 inches of the ﬂ oor and directed away from walkways or other appliances.

5. Following local building codes, install a manual shut-off valve (5) using 3/4” with 3/4” NPT ﬁ ttings.

6. Install a drain valve on the bottom of the unit.

IH-87

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

2. Install a 3/4” union connection (2).

3. Install a 3/4” tee ﬁ tting (3). Install either a pressure relief valve or a temperature and pressure relief valve (4), as required by your local code.

IH-88

7. Connect the unit to the existing hot water lines. If the existing plumbing is 1/2” pipe, adapters may be used to transition from the 3/4” pipe. If multiple water heaters are being installed, the diameter of both the cold water lines and the hot water lines need to be sized appropriately.

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

IH-86

Temperature and Pressure Relief Valve

IMPORTANT The pressure relief valve must be rated at 150 psi, the maximum btu/h input of the unit, and comply with all local building codes and standards. Do not install any restrictions or other valves in the pressure relief line.

NOTE: For energy conservation, the hot water pipes should be insulated. Also insulate any recirculation water lines.

Page 28

Connecting Multiple Units

Install and connect the cold water line. If an optional hot water storage tank is required, connect the hot water lines to this tank also.

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

water heater.

INSTALL COLD WATER LINES

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

2. Install a 3/4” union connection.

3. Install an inline wye-strainer. Make sure the strainer is positioned to allow servicing of the strainer screen.

IH-62

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

5. 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. If multiple water heaters are being installed, the diameter of both the cold water lines and the hot water lines need to be sized appropriately.

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

Page 29

INSTALL CONDENSATE DRAIN

Due to its efficient design, the Hubbell water heater produces condensate (water) as a normal by-product of heating the water. This condensate is acidic, with a pH level between 3 and 4. Local building codes may require an in-line neutralizer to be installed (not included) to treat this water.

1. Connect 3/4” I.D. ﬂ exible drain line (2) to the condensate nipple located on the bottom of the unit. Tighten hose clamp (1).

2. If required, install an in-line neutralizer (3) to treat the acidic condensate. Follow all the installation instructions included with the neutralizer.

NOTE: If a nearby laundry tub is used as a disposal for waste water from a washing machine, draining the condensate into this tub allows the soapy water discharge to neutralize the acidic condensate.

3. Route the drain line to nearby laundry tub (6), ﬂ oor drain (5), or condensate pump (4).

IH-30

Page 30

CONNECT ELECTRICAL POWER / INITIAL STARTUP

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.

1. Make sure the electrical outlet being used is wired with at least 12 gauge wire and grounded. It should also be connected to at least a 5 Amp circuit breaker. The electrical power required for the water heater is 120V AC at 60 Hz.

2. Recheck the water, gas, condensate drain line, combustion (fresh) air inlet, and gas exhaust outlet to make sure they are properly connected.

Before connecting the water heater to power, open the gas supply valve, cold water valve, and hot water valve. Also make sure the drain line valve is closed.

Neutral

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 polarity is reversed it may cause the unit to malfunction

Line

Bleed off any air and make sure the heat exchanger is filled with water by opening an external faucet.

5. Plug the 60 inch power cord into the outlet. The water heater’s display panel should turn on. DO NOT disconnect the power supply while the unit is operating

(heating water).

NOTE: For additional electrical protection, the use of a whole house surge protector is recommended. Damage caused by power surges

is not covered by the Hubbell Warranty.

IMPORTANT If the water heater display does not come ON, first check the plug. Also check the electrical panel circuit breaker and reset it if necessary. If the circuit breaker trips again, do not reset. Disconnect the plug and have a qualified technician diagnose the problem.

Page 31

MULTIPLE UNITS

Gas Valve Adjustments Section

All Hubbell water heaters are designed to connect multiple units together. Multiple units increase the volume of hot water and also ensures that hot water is always available, even if one unit is shut down due to maintenance.

Connecting several units together requires proper sizing of water and gas piping, as well as increased sizing in

the intake and exhaust pipes.

Up to ten water heaters can be connected (cascading) together. Use the steps in this section along with the basic installation procedure for installing a single unit.

NOTE: Each units can be single vented or joined together in a common vent

The water heaters will communicate, via the cable provided with the water heater, during normal operation:

• When demand for hot water is low, fewer units will operate.

• If one unit has an error code, the others will continue to operate.

• Changing the settings (temperature, time, etc.) on one unit changes settings on all the units.

• It is possible to shut one unit down for maintenance while the others continue to operate.

1. Connect all the units to a gas supply pipe. Make sure

the pipe is properly sized in accordance with the BTU draw and number of units being operated.

IH-82

Page 32

MULTIPLE UNITS

Install the combustion (fresh) air intake and exhaust outlet pipes. Make sure the pipes are properly sized in accordance with the number of units being operated. Refer to the table.

a. Connect the 3” I.D air inlet from the unit to a

properly sized (large) common trunk line using suitable adapters, wye ﬁ ttings, and elbows.

b. Connect the 3” I.D exhaust outlet from the unit to

a properly sized (large) common trunk line using suitable adapters, wye ﬁ ttings, and elbows.

For proper fl ow, always use 90 degree tee-fi ttings on the common trunk line that have a sweeping intersection. Also make sure the fi ttings are installed so the air fl ow will fl ow past the intersection and not into it.

IH-66

IH-83

Max Vent Length For Various Duct Sizes And

Number Of Units

Duct

Number of Units

PV = Power Vent DV = Direct Vent

Venting

Type

1 pipe - PV 26 200 130 200 130

2 pipe - DV 21 100 65 100 65

1 pipe - PV 200 130

2 pipe - DV 100 65

1 pipe - PV 100 30 200 130

2 pipe - DV 50 30 100 65

1 pipe - PV 200 130

2 pipe - DV 100 65

1 pipe - PV 200 130

2 pipe - DV 100 65

1 pipe - PV 200 130

2 pipe - DV 100 65

1 pipe - PV 150 45

2 pipe - DV 75 45

1 pipe - PV 100 30 200 130

2 pipe - DV 50 30 100 65

1 pipe - PV 200 130

2 pipe - DV 100 65

1 pipe - PV 200 130

2 pipe - DV 100 65

2” 3” 4” 6” 8”

GX200(P) GX200(P)

GX250(P) GX200(P) GX250(P) GX200(P)

Size and Model

GX250(P)

GX200(P) GX250(P)

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

Do not exceed the above set limits.

Page 33

MULTIPLE UNITS

3. Install and connect the hot water lines. If an optional

hot water storage tank is required, connect the hot water lines to this tank. Make sure the pipe is properly sized in accordance with the number of units being operated.

IH-84

6. If necessary, press the Power button to turn

OFF the water heater.

Disconnect the power.

7. On each water heater, remove the three screws from both the top and bottom of the unit. Remove the front cover and locate the main circuit board.

If equipped, close the bypass valve, as shown. This valve should only be in the open position in a single unit installation.

OPEN

(Single unit instllation)

Closed

(Multi unit instllation)

4. Install and connect the cold water lines. Make sure the pipe is properly sized in accordance with the number of units being operated.

IH-85

5. Connect the condensate drain lines.

CGN-009

WARNING

SHOCK HAZARD Before making any adjustments inside the water heater, make sure the power is disconnected. Unplug the water or turn the circuit breaker OFF.

Page 34

MULTIPLE UNITS

Locate DIP Switch 2 on the fi rst and last units and put the switch in the ON position (up). On the middle unit(s), position the switch in the OFF position (down).

DIP Switch Settings (Réglages des commutateurs DIP)

SW2

Cascade Termination ON

(Terminaison en cascade ON)

Cascade Termination OFF

(Terminaison en cascade OFF)

DIP Switch Locations on Control Board

10. Connect the units using the supplied cable(s) and cascading jack plugs. Connect one end of a cable into either of two jack receptacles (arrows) located on the circuit board.

11. Pass the cable through the bottom of the unit’s wire grommet.

12.

Secure the wire using a zip tie to the wall.

(CASCADE

TERMINATION

SWITCH)

NOTE: SW2 Cascade termination switch) needs to be in the ON (up) position only for

the

first and last units in the set of cascaded units.

SW2 needs to be in the OFF (down) position for all other units that are not first or last

Cable Routing: Do not bunch up or coil

any extra lengths of communication cable. Do not zip tie to a high volage lines. These may cause intereference in communication.

13. Connect the opposite end of the cable to one of the jack connectors of the next water heater. Continue connecting all the units together, as shown.

Dip Switch 2 ON

IH-61

Dip Switch 2 OFF

Dip Switch 2 ON

14. Replace the front covers.

15.

Reconnect the power.

NOTE: Each water heater is rated at 500 watts (5 amps). When installing multiple units, the electrical power supply must be sized accordingly. Plug each water heater into a separate outlet. Using a separate circuit for each unit allows one circuit breaker to trip while the other units continue to operate.

16.

Mode

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

Page 35

MULTIPLE UNITS

17. Then use the Up/Down arrows to select

the programming mode dC on the display.

18.

Enter

19.

20. Once the water heater is programmed to

21.

Mode

Press the Enter button to begin programming.

Press the Set button to select either ON or OFF.

Set

ON, use the Up/Down arrows to select the unit number (1 - 10). Each unit must have a unique number. The units do not, however, need to be numbered in sequence.

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

22.

Enter

23. Repeat steps 6 - 22 for all units and name each unit uniquely.

Press Enter to return to the main display screen.

Page 36

MEASURING GAS PRESSURE

A qualified service technician must use a manometer to confirm the static and operating gas pressure to the water heater during installation.

Models

Parameters

NG/LP- Minimum Static

Gas Pressure 1/2"

NG/LP- Minimum Static

Gas Pressure 3/4"

NG/LP - Maximum

Static Gas Pressure

Gas Pressure for

Adjustments

Press the Power button to turn OFF the water

GX200 GX200P GX250 GX250P

5” (non-corrugated,

black iron)

2.5” (non-corrugated, black iron)

8” for NG, 11” for LP

6” (non-corrugated,

black iron)

14”

heater.

Disconnect the power.

2. Close the gas supply inlet valve to the unit and remove the front cover from the water heater.

3. Connect a manometer to the gas connection, as shown.

a. Remove plug, as shown by arrow.

b. Install 1/8” barbed nipple.

5. Connect the water heater to the power source. Make sure all faucets are closed (no ﬂ ow).

6. Set the Max Fire CO mode.

a. Press the Mode button until CO is displayed.

b. Press Enter to select this mode.

c. Mode selection is indicated by marque scrolling.

7. Open all hot water faucets. The unit will enter “max ﬁ re mode” indicated by the ﬂ ame icon on the display screen.

8. Turn on and operate at maximum output ALL other household gas appliances located on the same gas pipe system.

9. Record the lowest operating gas pressure reading on the manometer.

DYNAMIC GAS PRESSURE ___________WC DATE ___________________

10. Close all hot water faucets and turn off all other

household gas appliances.

11. To return the water heater to normal operation.

a. Press and hold MODE button until dH or cH mode is

displayed.

c. Attach the rubber hose to the manometer.

Open the gas supply valve and record the static gas pressure on the manometer.

STATIC GAS PRESSURE _______________WC DATE ___________________

b. Press Power button to turn off the display.

Disconnect unit from power source.

c. Close inlet gas supply valve, disconnect the

manometer, and reinstall plug.

12. To continue unit set-up, go to the Adjusting the CO

Level section. To return the unit to normal operation, install front cover and open inlet gas supply valve.

13. Leak test the gas valve before placing the unit in

operation. Only use approved leak detector liquid solutions to check for leaks.

14. Select appropriate dH or CH mode.

15. Press

Enter to return to the main display screen.

NEGATIVE DYNAMIC PRESSURE Negative dynamic pressures (less than 0" WC) are indicative of inadequate gas line sizing or a gas line plugging. This will cause the unit to malfuction.

Page 37

PROPANE (LPG) CONVERSION

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

Refer to the Measuring Gas Pressure section of this manual for the procedure to confirm that there is LP Gas inlet pressure of between 8.0” and 13.0” W.C. Record the gas pressure here.

STATIC LP GAS PRESSURE ____________W.C. DATE ___________________

1. Make sure all hot water faucets are OFF.

Press the control panel Power button to turn the water heater OFF.

Disconnect the power.

Fuel Selection Switch

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

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

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

DIP Switch Settings (Réglages des commutateurs DIP)

SW1

Propane

Natural Gas

(Gaz naturel)

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

Page 38

PROPANE (LPG) CONVERSION

6. Press and hold the Set button and

simultaneously press the Up arrow key until the Ft screen appears.

7. Press the Enter button to display and conﬁ rm

gas selection. Either nAt or Prop will be displayed to indicate the position of the DIP switch.

Enter

Press the Enter button to return to the main display.

10. Refer to Adjusting the CO2 Level section in this manual for instructions on connecting a calibrated CO analyzer to the gas valve.

11.

Locate the gas valve and use a small screwdriver to adjust gas valve high fi re main fl ow restrictor (V3) 1-1/2 turns clockwise .

12.

Refer to Adjusting the CO2 Level section for instructions on using the gas analyzer to measure and set High Fire CO2 and CO levels.

8. Press and hold the Mode button to save the

changes and return to the dH screen on the main display.

Page 39

ADJUSTING THE CO2LEVEL

This procedure is required only during installation in a high-altitude location or when converting the unit from

natural gas to propane, or with combustion problems. This procedure should only be done by a qualified technician or installer.

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 offset “ or the “main flow restrictor” 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.

CO2 and CO Standards

CO2 Range (%) Max. CO Level (ppm)

Natural Gas

High Fire 8.8% to 9.1% < 200 ppm

Low Fire 8.6% to 8.9% < 60 ppm

LP Gas

High Fire 8.8% to 9.1% < 200 ppm

Low Fire 8.6% to 8.9% < 60 ppm

Troubleshooting Chart

Use the CO2 analyzer to measure the exhaust vent fumes. Use a small screwdriver to adjust gas valve high fi re main fl ow restrictor (V3) to achieve the desired CO2 values.

NOTE: Turn clockwise for less CO2 and counterclockwise for more CO2.. Make adjustments by making 1/4 turn increments. Wait three minutes for reading to stabilize and then recheck.

IMPORTANT Values above are for climate controlled conditions. Variables such as gas pressure, heating value of the gas, and the humidity and temperature of combustion air can all impact CO and CO2values. Changes in these variables can result in different CO and CO2 values on the same water heater.

Once the inlet gas pressures are confirmed, a qualified service technician must use a calibrated CO2 analyzer to adjust the gas valve to achieve the desired CO2 and CO values.

IMPORTANT The service technician must confirm Static and Operating inlet gas pressures before setting High Fire and Low Fire CO2 and CO values.

IMPORTANT Making High Fire Adjustments can affect the Low Fire setting and vice versa. Therefore, double check both the High Fire and the Low Fire CO2 and CO levels after making any adjustment.

3. There will be a slight time delay between the adjustment and the response of the analyzer instrument. Allow the reading to stabilize before making another adjustment

4. Once the desired values are achieved, record the HIGH FIRE CO2values.

HIGH FIRE CO2 VALUE _______________% Max CO Level Measured ____________ppm DATE ___________________

1. Locate the gas valve, as shown.

Page 40

Wiring Diagram

ADJUSTING THE CO2LEVEL

5. Press the Up/Down arrows to go to the Low Fire mode.

6. Adjust the Low Fire offset while the burner operates at low ﬁ re using a 2 mm hex wrench inserted into servo regulator offset adjustment (V2). Adjust the offset pressure to achieve the desired low ﬁ re CO2 values.

NOTE: Turn clockwise for more CO2 and counterclockwise for less CO2..

11.

Check for any gas or exhaust leaks test before placing the unit in operation. Only use approved leak detector liquid solutions to check for leaks.

7. There will be a slight time delay between the adjustment and the response of the analyzer instrument. Allow three minutes for the reading to stabilize before making another adjustment.

8. Once the desired values are achieved, record the LOW FIRE CO2values.

LOW FIRE CO2 VALUE _______________% Max CO Level Measured ____________ppm DATE ___________________

9. Close all open water faucets.

10. Return the water heater to normal operation.

a. Press and hold Mode button until dH or cH mode is

displayed.

b. Press Enter to select this mode.

c. Press Power button to turn OFF the water heater.

d. Turn OFF the inlet gas supply valve, disconnect

the gas analyzer, and install a test port plug in the exhaust gas vent.

e. Install front cover and open inlet gas supply valve.

Page 41

Control Panel

OPERATION

Operational Diagram

Set

Mode

Clock

Time

Power

Enter

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. Also use these keys to select a program screen in Modes of Operation. Used to switch between options within a Mode of Operation screen.

Enter button Press this button to switch the temperature display between degrees F and degrees C. It is also used to enter "Modes of Operation" screens in order to set the desired parameters.

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 by pressing and holding 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 enter the Mode of Operation screens. Once the first screen appears, use the UP and DOWN arrow keys to select the desired screen.

G) Set button

Used to set the daily ON/OFF times.

Page 42

OPERATION

H I J K L M N O

IH-03

Display Icons

H) Error Icon

Indicates an error has been detected and a trouble code may be shown next to the CODE Display (T) section. The last ten trouble codes are retained in memory.

I) Wireless Icon

Indicates the wireless mode is activated.

J) Freeze Indicator Icon

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

K) Recirculation Indicator Icon

Indicates water is being circulated through the system.

L) Water Usage Icon

Indicates water flow (open faucet).

M) Blower Icon

Indicates blower is operating.

N) Burner ON Icon

Indicates burner is operating.

O) Gas Consumption Icon

Indicates the level of energy usage. More bars being visible indicates a higher consumption of gas.

P) Outlet Water Temperature Display

Displays the desired maximum temperature of the water flowing out of the unit. This temperature can be adjusted between 100° and 140°F for domestic use and up to 185°F for commercial use. If the temperature is flashing, it indicates the water has not reached the desired maximum setting. It also indicates the unit of measure; Fahrenheit or Celsius.

Q) Programmed ON/OFF Times

Dark boxes below the time graph indicate a programmed ON time in one hour increments.

R) Program Indicator

Program is displayed during set up of the ON and OFF times.

S) Clock Display

Indicates the current time in AM or PM. Also indicates the programmed ON (start time) or OFF (end time) when setting programmed run times.

T) CODE Display

Displays the word CODE and the most recent digital error code.

U) INLET Display

Displays the word INLET and the actual inlet water temperature in degrees Fahrenheit or Celsius.

V) SET Display

Displays the word SET when changing the outlet water temperature and/or time values. Use the UP/DOWN arrows to adjust the variable.

Page 43

OPERATION

Setting the Time

Time

2. Press the Up/Down arrows to set the

Press the Time button.

The minute section of the time display will flash.

correct minute.

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.

Time

Press the Time button again.

The colon (:) between the hours and minutes should now be flashing, indicating the time has been properly set.

Time

Press the Time button again.

The hour section of the time display will flash.

Page 44

OPERATION

Adjusting the Water Temperature

NOTE: The outlet water temperature is factory

preset to 120°F (49°C).

Hot water temperature over 120°F (49°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 inf rm 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 fan in the water heater must be OFF, and the unit must not be operating (no flame).

WARNING

Water temperatures over 120°F (49°C) can cause severe burns. Proper care is your responsibility. To avoid scalding, especially in households with children, elderly, or handicapped occupants, do not adjust the outlet water

temperature above the factory setting.

Press the Enter button to select either

Enter

Fahrenheit or Celsius.

Press the Up/Down arrows to set the desired temperature. The temperature range for residential applications is adjustable between 100 and 140°F (38 and 60°C) in one degree increments.

Page 45

WATER HEATER PROGRAMMING SECTION

Modes of Operation

The Modes of Operation screens provide set up screens and additional information on the water heater. There are 15 Mode of Operation screens of which four screens are used by the homeowner. The other screens are used by the technician during installation or maintenance of the water heater.

Customer Screens

The dH screen provides the homeowner with the basic set up of the water heater. It also shows the water heater is in the dH mode which is “domestic hot water”.

The PS screen is used by the homeowner to set the desired circulation times (ON and OFF) for the water heater. The dE screen is used by the homeowner to view diagnostic error codes before calling a technician with a potential service problem.

NOTE: The PS and EC screens are on GX200P and GX250P models only.

2. Then use the Up/Down arrows to select

the PS screen on the display.

Enter

4. Select one of four programming modes: Manual, Auto, 24-7, or None

Auto Setting

This setting allows the water heater to automatically set the times of usage by monitoring hot water usage throughout the day

Press the Enter button to begin programming. A scrolling marquee will appear when in the programming mode.

Programming ON/OFF Run Times

The Hubbell water heater senses water usage and will automatically provide hot water on

demand. Depending on the distance between the unit and the open faucet, it can take some time for existing cool water to be purged from the length of the hot water pipe.

If desired, the water heater can be set for daily ON/ OFF run times in one hour increments. Use this feature in conjunction with OPTIONAL recirculating valves and systems to pre-supply heated water to specific faucets.

Press and hold the Mode button.

Mode

24/7 Setting

This setting turns ON all of the blocks

None Setting

This setting turns OFF all of the blocks

Page 46

WATER HEATER PROGRAMMING SECTION

Manual Setting

This setting is used to manually turn ON or OFF each block one at a time

1. Press the Up/Down arrows to select the

time (6:00 am).

Mode

When all times have been set, press and hold the Mode button to save the changes and return to the dH screen on the main display.

3. If desired, continue to press the Up/Down

When the desired block is flashing (9:00 AM), press the Set button to activate it. Repeat this process to activate all the desired “ON” time blocks.

With the desired time icon displayed, press the Set button once to activate (ON). Press

Set

the Set button again to deactivate (OFF).

NOTE: Each “block” displayed below the time line

represents an “ON” time of one hour. The default

setting is all time blocks are “OFF” (not displayed).

arrows to select another time block(s).

Enter

Press the Enter button to return to the main display.

Recirculation Setup

Set up the Recirculation options using the display on the front of the water heater.

Mode

2. Press the UP arrow until the EC screen

Press the Mode button until the dH screen appears.

appears.

NOTE: The time setting for 12:00 am or pm is

00:00, as shown.

Enter

4. Use the Up/Down keys to select

Press the Enter button to select the External Circulation mode.

thermostatic valve, dedicated line, or tank loading.

Page 47

WATER HEATER PROGRAMMING SECTION

No recirculation selected

Thermostatic valve

Dedicated line

Tank loading

Cascading (Daisy Chain)

Mode

2. Then use the Up/Down arrows to select

Enter

Set

Press and hold the Mode button.

the programming mode dC on the display.

Press the Enter button to begin programming.

Press the Set button to select either ON or OFF.

Pump on continusouly

5. Once the water heater is programmed to

ON, use the Up/Down arrows to select the unit number (1 - 10). Each unit must have a unique number. The units do not, however, need to be numbered in sequence.

Mode

Enter

Press and hold the Mode button to save the changes and return to the dH screen on the main display.

Press Enter to return to the main display screen.

Page 48

WATER HEATER PROGRAMMING SECTION

Technician Screens

The second type of screen should only be accessed by a qualified technician. These screens should not be adjusted by the homeowner.

1. Press the Mode button until dH shows on the display.

2. Press and hold the Set button and scroll using the

up/down key.

3. When the desired mode is displayed, press the Enter

button.

Pressure Booster (pump models only

Applicable only to Pump Model

In applications where the supply pressure is low and additional pressure is desired, set the Pb mode to ON. The default is Off.

Press the Set button.

Set

Then use the Up/Down arrows to select the programming mode Pb on the display.

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

Press and hold the Mode button to save the

Mode

Enter

changes and return to the dH screen on the main display.

Press the Enter button to return to the main display.

Fast Start Selection

Keeps water hot for five minutes after the last use. The Fast Start mode provides hot water faster in ON and OFF applications. This mode

is set to OFF by default.

The Fast Start mode is an ON or OFF selection.

Press the Set button.

Set

Press the Enter button to begin programming.

Enter

Then use the Up/Down arrows to select the programming mode FS on the display.

Press the Enter button to begin programming.

Enter

Page 49

WATER HEATER PROGRAMMING SECTION

Mode

Enter

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

Press and hold the Mode button to save the changes and return to the dH screen on the main display.

Press the Enter button to return to the main display.

Set

Enter

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

Press and hold the Set button to save the changes and return to the dH screen on the main display.

Press the Enter button to return to the main display.

Flow Booster

This mode may be used to increase the overall system recirculation flow by enabling all the water valves open in a multiple units installation

to be open.

The Flow Booster mode is an ON or OFF selection.

Press the Set button.

Set

Then use the Up/Down arrows to select the programming mode Fb on the display.

Press the Enter button to begin programming.

Enter

Blower Ramp Selection

When exhaust harmonics are observed, i.e. resonance at low fire, adjust the water heater

using the blower ramp setting (default is rat0). Increase the rate number until the resonance is no longer observed.

The Blower Ramp Selection has six different settings (rat0 - rat5):

Press the Set button.

Set

Then use the Up/Down arrows to select the programming mode rS on the display.

Press the Enter button to begin programming.

Enter

Page 50

Mode

Enter

WATER HEATER PROGRAMMING SECTION

Press the Up/Down arrows to select the Blower Ramp Selection from six different settings (rat0 - rat5):.

Press and hold the Mode button to save the changes and return to the dH screen on the main display.

Press the Enter button to return to the main display.

ON or OFF.

NOTE: If you determine the water pressure at the faucet is too low, turn the mode to OFF.

Press and hold the Set button to save the

Set

Enter

changes and return to the dH screen on the main display.

Press the Enter button to return to the main display.

Flow Control Selection

The Water Control Valve is set to ON for precise temperature control and OFF for

maximum flow.

The Water Control Valve mode is an ON or OFF selection.

Press and hold the Set button.

Set

Then use the Up/Down arrows to select the programming mode FC on the display.

Fuel Type Selection

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.

Blower Override

This mode may be used to manually control the

speed of the blower and should be accessed

only by an Hubbell factory technician.

Blower Override is an ON or OFF selection.

Press the Set button.

Set

Then use the Up/Down arrows to select the programming mode bO on the display.

Press the Enter button to begin programming.

Enter

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

Page 51

Enter

WATER HEATER PROGRAMMING SECTION

Press the Enter button to begin programming.

Press and hold the Set button.

Set

Mode

Enter

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

Press and hold the Mode button to save the changes and return to the dH screen on the main display.

Press the Enter button to return to the main display.

Then use the Up/Down arrows to select the dE screen on the display.

Press the Enter button to view the codes.

Enter

Press the Up/Down arrows to view any one of the ten diagnostic codes from C0 to C9. Each code line will have an associated error code displayed. The C0 screen is the most recent code, while the C9 is the last viewable code.

Diagnostic Code and Error Log Selection

This screen provides the technician with Diagnostic Codes and Errors recorded as the water heater operates. These codes are used in

conjunction with the Performance History Codes.

Error Code Description of Error Code

E0 Reserved for Future Use

E1 Fan Speed Fault

E2 Reserved for Future Use

E3 Blocked Flue Fault

E4 Reserved for Future Use

E5 Reserved for Future Use

E6 Reserved for Future Use

E7 Ignition Failure

E8 Reserved for Future Use

E9 Temperature Sensor Short

EA Temperature Sensor Wiring Fault

Eb Software Fault

Ec Flue Temperature Fault

Ed Heat Exchanger Outlet Temperature Fault

EE Reserved for Future Use

EF Reserved for Future Use

Diagnostic Code C0 with no error code (nOnE).

Diagnostic Code C1 with error code (E7); ignition failure.

When finished, press and hold the Mode button

Mode

to return to the dH screen on the main display. The software does not have a hold function.

Press the Enter button to return to the main

Enter

display.

Page 52

Set

Enter

WATER HEATER PROGRAMMING SECTION

Diagnostic Code and Error Log Selection

The Performance History mode allows the technician to view ignition cycles, number of ON times, and accumulated water flow.

Press and hold the Set button.

Then use the arrow keys to select the programming mode PH on the display.

Press the Enter button to begin programming.

Diagnostic Code FC (Flame Cycles) shows a flame count of 40,000.

Diagnostic Code FH (Flow-on hours) shows one hour of flame. (To obtain the usage in gallons, multiply the number by 1,000).

Adjusting CO2 Levels Selection

For adjusting CO2 levels, refer to the Adjusting the CO2 Level section in this manual.

Press the Up/Down arrows to select one of the six diagnostic codes. Each code line has a corresponding number for each code.

Diagnostic Code CF (Cumulative Flow) shows 38,000 gallons of water. (To obtain the usage in gallons, multiply the number by 1,000).

Diagnostic Code dS (Diagnostic Service Hours). The display can be between 0 and 9999 hours. This code is used to determine the useful service life of the water heater.

Commercial Heating Selection

The Commercial Heating option allows water to be heated to a maximum of 185°F (38°C) for commercial applications.

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 inf rm 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.

Press and hold the Set button.

Set

Then use the Up/Down arrows to select the programming mode CH on the display.

Diagnostic Code US (Usage) is a percentage figure between 0 and 100%.

Press the Enter button to begin programming.

Enter

Page 53

WATER HEATER PROGRAMMING SECTION

Press the Up/Down arrows to set the desired temperature.

When the Commercial mode is OFF, the maximum temperature setting is 140°F. When the Commercial mode is on the maximum temperature, setting is 185°F.

Press and hold the control panel Power button to turn the water heater OFF.

Press control panel Power button to turn the water heater back ON.

Watch the display for “CH”, which appears momentarily before the display shows the actual temperature.

Then use the Up/Down arrows to select the programming mode LA on the display.

Press the Enter button to begin programming.

Enter

P ress the Up/Down arrows to select either

ON or OFF.

NOTE: When changing the mode back to residential hot water (dH), the temperature setting will remain above the maximum limit until the down arrow is pressed.

Leak Action Selection

If turned ON and a leak is detected, water will automatically be shut off. If turned OFF, the

leak will continue. High condensation within the tank can sometimes produce a false reading. This mode is turned OFF by default.

The Leak Action mode is an ON or OFF selection.

Press and hold the Set button.

Set

Mode

Enter

Press and hold the Mode button to save the changes and return to the dH screen on the main display.

Press the Enter button to return to the main display.

Page 54

MAINTENANCE

Cleaning the Inlet Water Y-Strainer

When the Hubbell water heater is installed, an inline Y-strainer should be installed between the shut-off valve and water inlet. This strainer should be cleaned every three months, or as required, to maintain full water flow to the unit.

IH-62

1. Position a container under the Y-strainer on the water

inlet piping.

2. Close the water inlet valve (arrow) and remove the

cover plug. Allow the water to drain from the pipe.

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. The

closed valve position is typically when the handle is perpendicular to the pipe, as shown in the illustration.

IH-32c

3. Remove the strainer screen, clean it, and reinstall it in the housing.

IH-62a

4. Replace the Y-strainer cover plug.

IH-32b

3. Position a bucket or other container under the drain valve on the bottom of the unit.

4. Slowly open the drain valve and allow all the remaining water to drain from the unit.

IH-29b

Page 55

MAINTENANCE

5. Slowly loosen the air bleed screw (shown by arrow).

IH-32d

6. When all the water has drained from the water heater, close the drain valve and close the air bleed screw.

Filling the Water Heater

Open the hot water faucet that is located farthest away from the water heater.

Make sure the drain valve and air bleed screw are closed. Open the water outlet supply valve. Slowly open the water inlet supply valve.

Once a steady stream of water flows and all the air is purged from the system, close the hot water faucet.

Connect the unit to the power supply.

Open a hot water faucet. The water heater should

5. operate normally.

Descaling the unit

Depending on quality of the water supply, the Water Heater may requires descaling to provide efficient heating of water. It is recommended that the unit be descaled every other year, or sooner if the control panel displays a flashing “H” icon with the code CL. A service technician can preform this procedure during an annual inspection if desired.

Page 56

TROUBLESHOOTING CHART

ERROR CODE DESCRIPTION REMEDY

E0 Reserved for Future Use

E1 Fan Speed Fault

E2 Reserved for Future Use

E3 Blocked Flue Fault

E4 Reserved for Future Use

E5 Reserved for Future Use

E6 Reserved for Future Use

E7 Ignition Failure

E8 Reserved for Future Use

E9 Temperature Sensor Short

EA Temperature Sensor Wiring Fault

Eb Software Fault

Ec Flue Temperature Fault

Ed Heat Exchanger Outlet Temperature Fault

EE Reserved for Future Use

EF Reserved for Future Use

Turn water heater OFF, shut gas valve, unplug unit, and contact an authorized service technician.

Clean out debris and clean exterior inlet and outlet screens.

Verify both air intake and exhaust vents are clear of debris.

Verify there is an adequate gas supply to the unit.

If the problem persists, turn control panel OFF, shut gas valve, unplug unit, and contact an authorized service technician.

Turn water heater OFF, shut gas valve, unplug unit, and contact an authorized service technician.

Turn water heater OFF, shut gas valve, unplug unit, and contact service technician.

Page 57

TROUBLESHOOTING CHART

Troubleshooting Chart

PROBLEM POSSIBLE CAUSES CAUSE REMEDY

No electrical power to the water heater.

No water available when a faucet is opened.

Hot water is not available when the faucet is opened.

The water temperature is not hot enough or turns cold during use.

It takes a long time before hot water flows from the faucet.

The water is not hot enough. • Is the water temperature set too low? • Adjust the temperature setting.

The water at the faucet is too hot. • Is the water temperature set too high? • Adjust the temperature setting.

A fan can be heard even when the unit is not operating.

White “smoke” can be seen coming out of the exterior exhaust gas vent.

• Is the plug on the power supply cord unplugged from the electrical outlet?

• Is electrical panel’s 10 Amp circuit breaker tripped?

• Is the fuse on the circuit board good?

• Is there a power outage to the home?

• Is the water supply valve shut off at the meter (do cold water faucets work)?

• Is the water supply valve near the unit open?

• Is the water pipe frozen?

• Is an error code flashing on the display panel (leak detected)?

• Does the water heater have power (plugged in)?

• Is the water heater turned ON?

• Is an error code flashing on display panel?

• Is the gas supply valve open or shut off at the meter (do other gas devices work)?

• Is the faucet open far enough to draw at least 0.6 gallons (2.3 L) per minute through the water heater?

• Is an error code flashing on the display panel?

• Is the outlet water temperature set too low?

• Is the faucet some distance from the water heater?

• The fan continues to operate after the burner shuts off to clear the exhaust vent of combustion gases.

• The fan may run to help prevent freezing.

• Depending on the outside temperature, water vapor can be produced as the exhaust is vented.

• Reset the plug.

• Reset the circuit breaker.

• If the display panel is blank, unplug the unit or contact an authorized service technician.

• Contact the power company.

• Open the closed supply valve.

• Open the water supply valve.

• Turn OFF the unit, close all water valves and gas valve. Contact an authorized service technician.

• Refer to error code information and contact an authorized service technician.

• Restore electrical power to the unit.

• Press and hold the Power button to turn the unit ON.

• Refer to the Diagnostic and Error Codes section in this manual.

• Open the gas supply valve.

• Open the faucet to allow more water flow.

• Refer to the Diagnostic and Error Codes section in this manual.

• Adjust the outlet water temperature (refer to the procedure in this manual).

• Allow time for the cold water already in the pipes to flow from the faucet.

• Have recirculation valves and/or plumbing return line(s) installed and program the unit for recirculation mode.

• Normal operation, no action required.

• Protect the water heater from freezing temperatures or shut off and drain the unit.

• Normal operation, no action required.

Page 58

Propane

Cascading ON

(Cascade EN FONCTION)

Air Switch

WIRING DIAGRAM

Connectors

Cascading

RS485

Natural Gas

(Gaz naturel)

Cascading OFF

(Cascade HORS FONCTION)

DIP Switch Settings (Réglages des commutateurs DIP)

SW1

SW3

*Set only on the first and last units that are networked.

Fuel Set

Wire

Jumper

BLK

WHT

RED RED BRN BRN

Pump

Hubbell Water Heaters

Wiring Diagram

Model: GX200/GX200P/GX250/GX250P

Page 59

COMMERCIAL OPTIONS

Commercial Option #1

Multi-Unit “P” Models with Building Recirculation and No Storage

Commercial Option #2

Multi-Unit “P” Models with Internal ‘Tank-Loading’, Storage, and Building Recirculation

Commercial Option #4

Multi-Unit Non “P” Models with Storage using External Building Recirculation Pump

Commercial Option #5

Single Unit “P” Models with Internal ‘Tank-Loading’, Storage, and Building Recirculation

Commercial Option #3

Multi-Unit “P” Models with External ‘Tank-Loading’, Storage, and Building Recirculation

Commercial Option #6

Single Unit “P” Models with Internal ‘Tank-Loading’ and Storage (without Building Recirculation)

Page 60

OPERATIONAL DIAGRAM

IH-56

Page 61

WARRANTY

General

This water heater is warranted by Hubbell Water Heaters (Hubbell), 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 Hubbell option that are proven to be defective under normal use and connected only to potable water systems.

Effective Start Date

Hubbell requires proof of purchase and warranty registration in order to obtain warranty service. You can show proof of purchase with a dated sales receipt. Register the warranty within 30 days of purchasing the

product by going online at www.hubbellheaters.com.

Residential DHW Warranty

Heat Exchanger - 15 years

Other Parts - 5 years

Commercial Warranty

Heat Exchanger - 6 years

Other Parts - 3 years

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 failure, 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 domestic recirculation) 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 Hubbell.

Labor

The applicable period of this limited labor warranty is one (1) year from the effective start date. This applies to all water heater models. The payment and amount of any payment are subject to approval at Intellihot’s sole discretion. The Labor allowance will be paid based on the following schedule:

Repair or Replacement of Any

Parts

Replacement of Entire Unit

$75/hour up to maximum of

$150

$75/hour up to maximum of

$225

Replacement parts must be genuine Hubbell parts and warranty service must be performed by a licensed contractor.

Shipping Costs

If a replacement part is supplied under the terms of this warranty, Hubbell 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 maximumcontaminant levels (40 CFR part 143.3) as shown in the table.Hubbell will warrant the heat exchanger coil for hardness up to 15 Grains per gallon (257ppm as Calcium carbonate)

Contaminant Level

Aluminum 0.05 to 0.2 mg/l.

Chloride 250 mg/l.

Color 15 color units

Copper 1.0 mg/l.

Corrosivity Non-corrosive

Fluoride 2.0 mg/l.

Foaming Agents 0.5 mg/l.

Iron 0.3 mg/l.

Manganese 0.05 mg/l.

Odor 3 threshold odor number

pH 6.5-8.5

Silver 0.1 mg/l.

Sulfate 250 mg/l.

Total dissolved solids (TDS) 500 mg/l.

Zinc 5 mg/l.

Page 62

WARRANTY

Not Covered by this Warranty

This warranty does not cover product failure or problems due to:

• Failure to install in accordance with 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 are attached to the water heater that have not been approved by Hubbell;

• 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, Hubbell disclaims any and all other warranties, including but not limited to warranties of merchantability and fitness for a particular purpose; provided however, that implied warranties of merchantability and fitness for a particular purpose are not disclaimed during the one-year period from the effective date.

All parts claimed to be defective may be requested to be returned to Hubbell for examination prior to full claim

settlement. Please include the following information on your warranty claim:

1. Model number and serial number of the water heater;

2. Date of original purchase;

3. Owner’s name and address;

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

Hubbell reserves the right to make improvements in design or changes in specifications at any time, without incurring any obligation to owners of units previously sold.

Some states or provinces do not permit limitations or exclusions of implied warranties or incidental or consequential damages, so the limitations or exclusion in this warranty may not apply. No one is authorized to alter, modify, or enlarge this warranty, nor the exclusion, limitations, and reservations.

Please use the model number located on the water heater when contacting us with questions concerning this unit.

Hubbell 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 (203) 378 -2659, 8:00 – 5:00 EST

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 Hubbell at the following address or online at www.ihubbellheaters.com:

Hubbell Water Heaters

Attn: Warranty Claims

P.O. Box 288

Stratford, CT 06615

Phone: 203-378-2659

Fax: 203-378-3593

Email:info@hubbellheaters.com

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NOTES

Requirements for the 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)

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:

5. INSTALLATION OF CARBON MONOXIDE DETECTORS. At the time of installation of the side wall horizontal vented gas fueled equipment, the installing plumber or gasﬁ tter shall observe that a hard wired carbon monoxide detector with an alarm and battery backup is installed on the ﬂ oor level where the gas equipment is to be installed. In addition, the installing plumber or gasﬁ tter 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 qualiﬁ ed licensed professionals for the installation of hard wired carbon monoxide detectors

7. SIGNAGE. A metal or plastic identiﬁ cation 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”.

8. 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.

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 ﬂ oor level.

b. In the event that the requirements of this subdivision

can not 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.

6. 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 certiﬁ ed.

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Hubbell Water Heaters

.O. Box 288

Stratford, CT 06615

Phone: 203-378-2659

Fax: 203-378-3593

Email: info@hubbellheaters.com

www.hubbellheaters.com

Hubbell Water Heaters

Dealer / Installer Contact Information:

Serial Number: _________________________________ Date of Purchase: ___ / ___ / ______

WATER HEATERS SINCE 1920

Intuitive · Reliable · Efficient

IGT-MNL0001 (12/2012) Printed in the USA

www.hubbellheaters.com (203-378-2659)

Hubbell GX200, GX250, G250P, GX200P Installation & Operation Manual

Specifications and Main Features

Frequently Asked Questions

User Manual