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February 2018

Residential Gas

Water Heater

Installa on Instruc ons and
Use & Care Guide

Keep this manual in the pocket on heater for future reference whenever maintenance, adjustment or service is required.

Retain your original receipt as proof of purchase.

Residen al Atmospheric Gas Water Heater

with the Flammable Vapor Igni on Resistant

Safety System

Read this manual and the labels on the water heater before you install,
operate, or service it. If you have diﬃ

culty following the direc ons, or

aren’t sure you can safely and properly do any of this work yourself:

•

Call our Technical Assistance Hotline at 1-800-722-2101 or visit h p://www.
lochinvar.com. We can help you with installa on, opera ons, troubleshoo ng, or
maintenance. Before you call, write down the model and serial number from the
water heater’s data plate.

Incorrect installa on, opera on, or service can damage the water heater, your house
and other property, and present risks including ﬁ re, scalding, electric shock, and
explosion, causing serious injury or death.

Do not store or use gasoline or other
ﬂ ammable 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 build-
ing.

• Immediately call your gas supplier

from a neighbor’s phone. Follow the
gas supplier’s instruc ons.

• If you cannot reach your gas sup-

plier, call the ﬁ re department.

Installa on and service must be per-
formed by a qualiﬁ ed installer, service
agency or the gas supplier.

WARNING: If the informa on in
these instruc ons is not followed
exactly, a ﬁ re or explosion may
result causing property damage,
personal injury or death.

LOW LEAD

CONTENT

Table of Contents Page

IMPORTANT SAFETY INFORMATION ............................................. 3
GETTING STARTED ........................................................................ 7
INSTALLATION ............................................................................. 14
OPERATION ................................................................................. 23
TROUBLESHOOTING ................................................................... 25
MAINTENANCE ........................................................................... 28
NOTES ......................................................................................... 31
REPAIR PARTS ............................................................................. 35

100299883_ 2000553643_ Rev. A

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Содержание GSL050-40

Страница 1: ...on or service can damage the water heater your house and other property and present risks including ﬁre scalding electric shock and explosion causing serious 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 p...

Страница 2: ...t to cold water supply Hot water line T P relief valve Cold water shut oﬀ Dra hood T P discharge pipe Drain pan discharge pipe Metal drain pan Gas control valve thermostat Cold water line Gas supply shut oﬀ Vent pipe Drain valve Gas supply Sediment Trap ...

Страница 3: ...avoided could result in death or serious injury CAUTION CAUTION indicates a hazardous situa on that if not avoided could result in minor or moderate injury NOTICE NOTICE indicates prac ces not related to physical injury WARNING If the informa on in these instruc ons is not followed exactly a ﬁre or explosion may result causing property damage personal injury or death Do not store or use gasoline o...

Страница 4: ...severe burns instantly resul ng in severe injury or death Feel water before bathing or showering To reduce the risk of scalding install Thermosta c Mixing Valves temperature limi ng valves at each point of use These valves automa cally mix hot and cold water to limit the temperature at the tap Mixing valves are available at your local plumbing supplier Follow manufacturer s instruc ons for install...

Страница 5: ...er bu on if you suspect ﬂammable vapor have accumu lated inside or outside the appliance Immediately call a qualiﬁed person to inspect the appliance Water heaters subjected to a ﬂammable vapors inci dent will show a discolora on on the ﬂame arrestor and require replacement of the en re water heater Improper installa on or an inadequate air supply can also cause the FVIR system to dis able the wate...

Страница 6: ...odorless gas that is a by product of burning of fuels such as coal wood charcoal oil kerosene propane and natural gas Breathing excessive and abnormal amounts of carbon monoxide can cause carbon monoxide poisoning resul ng in serious injury or death This water heater must be supplied with adequate combus on air and must be properly vented to the outdoors Have a qualiﬁed person licensed plumber aut...

Страница 7: ...ocal plumbing supplier with compres sion ﬁ ngs that don t require soldering This kit includes two 12 ﬂex water lines two compression ﬁ ngs an 18 ﬂexible gas line two nipples and thread sealant tape For homes with plas c pipe use threaded connectors suitable for the speciﬁc type of plas c pipe used CPVC or PEX cross linked polyethylene Do not use PVC pipe Non corrosive gas leak detec on solu on mad...

Страница 8: ...le you will need to conduct the vent dra test on pages 23 24 when installa on is ﬁnished If there is not enough ven la on you will need to ven late with outside air Check for Chemicals Installa ons where corrosive chemi cals may be present require outside air Air for combus on and ven la on must be clean and free of corrosive or acid forming chemicals such as sulfur ﬂuorine and chlorine Ven la on ...

Страница 9: ...al or horizontal ducts B2 Determine type of ven la on There are several types of ven la on that can be used 1 Direct to outdoors 2 Ver cal ducts 3 Horizontal ducts 4 Single opening not recom mended must be at least 100 square inches Not appropriate for conﬁned spaces smaller than 50 cubic feet per 1 000 BTU HR as calculated in sec on A or when ge ng air from another room 5 From a larger room insid...

Страница 10: ...imension of no less than three inches All screens must have mesh or larger Moveable louvers must be locked open or interconnected with the equipment so that they open au toma cally during opera on Keep louvers and grills clean and free of debris or other obstruc ons B5 Check that air source is clean and free of chemicals Air for combus on and ven la on must be clean and free of corrosive or ﬂammab...

Страница 11: ...crawl spaces or any conﬁned or inaccessible loca on Single wall vent pipe cannot pass through any interior wall Clearance to Combus ble Materials The vent pipe cannot pass through any ceiling ﬂoor ﬁrewall or ﬁre par on Any part of the vent system must main tain the following clearances from any combus ble materials Single wall vent pipe must main tain a six inch clearance from combus ble materials...

Страница 12: ...ype B double wall vent pipe Figure 9 Venting through a chimney with type B double wall vent pipe Gas Piping Gas piping must be installed accord ing to local and state codes or in the absence of local and state codes the Na onal Fuel Gas Code ANSI Z223 1 NFPA 54 current edi on NOTICE When installing gas piping apply pipe joint compound or thread sealant tape approved for fuel gases Figure 10 Gas Pi...

Страница 13: ...at ing appliances when used to supply potable water Solar Installa on If this water heater is used as a solar stor age heater or as a backup for the solar system the water supply temperatures to the water heater tank may be in excess of 120 F A Thermosta c Mixing Valve or other temperature limi ng valve must be installed in the water supply line to limit the supply temperature to 120 F The unit mu...

Страница 14: ...s water pressure Locate your home s Pressure Reduc ing Valve PRV on the main incoming cold water supply line and adjust the water pressure control to between 50 and 60 psi If your home does not have a Pressure Reducing Valve install a PRV on the home s main water supply line and set it to between 50 and 60 psi Pressure Reducing Valves are available at your local plumbing supplier BACKGROUND Over t...

Страница 15: ...leaks and can shut oﬀ the water heater s water supply if a leak occurs Install a metal drain pan available at your local plumbing supplier under the water heater to catch condensa on or leaks from the piping connec ons or tank Most codes require and we recommend installing the water heater in a metal drain pan that is piped to an adequate drain The drain pan must be at least two inches wider than ...

Страница 16: ...d on a metal or wood panel extending beyond the full width and depth of the water heater by at least 3 in 76 2mm in any direc on If the water heater is installed in an alcove or closet the en re ﬂoor shall be covered by the aforestated panel If your area is prone to earth quakes use special straps as required by local building codes NOTICE The state of California re quires bracing anchoring or str...

Страница 17: ...erature Pressure T P Relief Valve discharge pipe You may be able to reuse the discharge pipe but do not reuse the old T P Relief Valve A new T P Relief Valve comes with your new water heater Figure 21 Removing the T P Relief Valve discharge pipe 10 Allow the vent pipe and dra hood to cool Once cooled disconnect the vent pipe from the dra hood You may need to support the vent pipe un l the new wate...

Страница 18: ...covered by a wood or metal panel NOTICE Most codes require se ng the water heater in a metal drain pan piped to an adequate drain The drain pan helps avoid property damage which may occur from condensa on or leaks in the piping connec ons or tank The drain pan must be at least two inches wider than the diameter of the water heater Install the drain pan so the water level is limited to a maximum de...

Страница 19: ...e discharge pipe must not be smaller than the pipe size of the T P Relief Valve The pipe must also be able to withstand 250 F 121 C without distor on Use only copper or CPVC pipe Do not use any other type of pipe such as PVC iron ﬂexible plas c pipe or any type of hose Terminate the discharge pipe a maximum of six inches above a ﬂoor drain or outside the building Do not drain the discharge pipe in...

Страница 20: ...he water heater for service or replacement con nect the water pipes with a coupling called a union We recommend using a dielectric type union available at your local plumbing supplier Dielec tric unions can help prevent corro sion caused by ny electric currents common in copper water pipes and can help extend the life of the water heater IF YOU HAVE COPPER PIPES If your home has copper water pipes...

Страница 21: ...ator at the nearest hot water faucet This allows debris in plumbing system to be washed out of the pipes 2 Turn the cold water supply back on and ﬁll the tank 3 Open a hot water faucet and allow the water to run un l it ﬂows with a full stream 4 Let the water run full stream for three minutes 5 Close the hot water faucet and replace the aerator 6 Check inlet and outlet connec ons and water pipes f...

Страница 22: ...ith large amounts of lint dust etc If so the air ﬁlter or ﬂame arrestor located on the bo om of the water heater will need to be cleaned more o en Combus on Air Supply and Ven la on Adequate air supply for water heater and any other nearby gas appliances If the water heater is installed in a closet or other small enclosed space or within the living space of the house air supply openings needed Are...

Страница 23: ... three seconds Wait 10 minutes between ligh ng a empts 7 A solid Status Light means the pilot was lit but is now oﬀ Release the gas control knob and wait 10 minutes Once the Status Light goes out repeat ligh ng steps 2 through 5 8 If the Status Light doesn t start ﬂashing a er three ligh ng a empts turn the gas control knob to the OFF posi on and refer to the Troubleshoo ng No Hot Water sec on see...

Страница 24: ...own as smelly water and can reduce the levels of bacteria that cause water borne diseases Water usage pa erns as well as heat from sources such as solar collectors ambient air and the pilot light can result in temperatures higher than the thermostat set point WARNING Higher temperatures increase the risk of scalding but even at 120 F hot water can scald see Table 1 Install Thermosta c Mixing Valve...

Страница 25: ...water is simply not warm enough there are several possible causes Faulty Thermosta c Mixing Valve in a faucet or shower control check other faucets in the house for hot water Water heater s capacity too small or usage too high Reversed plumbing connec ons or melted dip tube usually found soon a er new installa on Plumbing leak Sediment or lime build up in the bo om of the tank Thermosta c Mixing V...

Страница 26: ...f Valve or discharge pipe and do not operate the water heater without a func oning T P Relief Valve this could cause an explosion Water Pressure too High High water pressure can cause the T P Relief Valve to drip Install a Pressure Re ducing Valve PRV on the main cold water supply line Adjust the PRV to between 50 and 60 psi Thermal Expansion Tank Install a Thermal Expansion Tank If a Thermal Expa...

Страница 27: ...Residen al Standard Gas Water Heater Use and Care Guide 27 TROUBLESHOOTING Residen al Standard Gas Water Heater Use and Care Guide 27 TROUBLESHOOTING ...

Страница 28: ... to the drain valve and place the other end of the hose in a drain outside or in buckets Note that sediment in the bo om of the tank may clog the valve and prevent it from draining If you can t get the tank to drain contact a qualiﬁed person 5 Turn the cold water supply valve OFF 6 Open the drain valve on the water heater Figure 42 Draining the water heater 7 Also open a hot water faucet to help t...

Страница 29: ... properly perform this visual inspec on or if the burner needs to be cleaned get help from a qualiﬁed person T P Relief Valve Maintenance Figure 45 T P Relief Valve Read and follow the opera ng and an nual maintenance instruc ons provided by the manufacturer of the T P Relief Valve yellow label a ached to T P Relief Valve Minerals in the water can form deposits that cause the valve to s ck or crea...

Страница 30: ... thermostat thread a 4 sec on of gas pipe into the inlet and use it to turn the FVIR Safety System Opera onal Checklist TROU BLESHOOTING CHART gas control valve thermostat counterclockwise Do not use pipe wrench or equivalent to grip body Damage may result causing leaks Do not insert any sharp objects into the inlet or outlet connec ons Damage to the gas control valve thermostat may result Figure ...

Страница 31: ...Residen al Standard Gas Water Heater Use and Care Guide 31 NOTES NOTES ...

Страница 32: ...32 Residen al Standard Gas Water Heater Use and Care Guide NOTES NOTES ...

Страница 33: ...Residen al Standard Gas Water Heater Use and Care Guide 33 NOTES NOTES ...

Страница 34: ...34 Residen al Standard Gas Water Heater Use and Care Guide NOTES NOTES ...

Страница 35: ... PILOT THERMOPILEASSEMBLY KIT 13 FINAL BURNER ASSEMBLY 14 MANIFOLD DOOR GASKET Pictured on next page REPAIR PARTS LIST Replacement parts may be ordered through your plumber or the local distributor Parts will be shipped at prevailing prices and billed accordingly NOTICE When ordering replacement parts have the following informa on ready Model and serial number Type of gas used Item number Parts de...

Страница 36: ...ermopile and retainer clip Natural Gas or L P Item 13 Final burner assembly which contains the burner orifice manifold tube gasket door pilot tube thermopile manifold component block with retainer clip thermal switch and pilot assembly Natural Gas Low Nox or L P Item 14 Contains manifold door gasket Item 12 Item 13 L P Burner Item 14 Item 13 Natural Burner Lochinvar Water Heaters All Rights Reserv...

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