American Water Heater Commercial Gas Water Heaters Temperature Regulation, Thermostat Control

Page 43

TEMPERATURE REGULATION

HIGH TEMPERATURE LIMIT CONTROL (ECO)

7KLVZDWHUKHDWHULVHTXLSSHGZLWKDQ(&2 HQHUJ\FXWRXW QRQ

DGMXVWDEOHKLJKWHPSHUDWXUHOLPLWVZLWFK7KH(&2LVDQRUPDOO\

FORVHGVZLWFKWKDWRSHQV DFWLYDWHV RQDULVHLQWHPSHUDWXUH

7KH(&2LVORFDWHGLQVLGHWKH8SSHU7HPSHUDWXUH3UREH WZRUHG

ZLUHV VHHSDJHVDQGIRUORFDWLRQ7KH(&2VZLWFKFRQWDFWV

ZLOO RSHQ ZKHQ WKH ZDWHU WHPSHUDWXUH UHDFKHV DSSUR[LPDWHO\ ƒ) ƒ& DQGFORVHDWDSSUR[LPDWHO\ƒ) ƒ& 

,I WKH (&2 DFWLYDWHV FRQWDFWV RSHQ  GXH WR DEQRUPDOO\ KLJK

ZDWHU WHPSHUDWXUHV LQ WKH VWRUDJH WDQN WKH FRQWURO V\VWHP ZLOO LPPHGLDWHO\ GHHQHUJL]H WKH  9ROW *DV 9DOYH DQG HQG WKH FXUUHQWKHDWLQJF\FOH7KHFRQWUROV\VWHPZLOOORFNRXWGLVDEOLQJ IXUWKHU KHDWLQJ RSHUDWLRQ 7KH FRQWURO V\VWHP ZLOO GLVSOD\ WKH (QHUJ\ &XW 2XW (&2  )DXOW PHVVDJH RQ WKH /&' VFUHHQ ,W LV LPSRUWDQW WKDW D 4XDOL¿HG 6HUYLFH $JHQW EH FRQWDFWHG WR GHWHUPLQHWKHUHDVRQIRUWKH(&2DFWLYDWLRQEHIRUHUHVHWWLQJWKH (&22QFHWKHUHDVRQKDVEHHQGHWHUPLQHGDQGFRUUHFWHGWKH (&2FDQEHUHVHWDVIROORZV

6KRXOGWKH(&2DFWLYDWHWKHZDWHUWHPSHUDWXUHPXVWGURSEHORZ

ƒ) ƒ& EHIRUHWKHFRQWUROV\VWHPFDQEHUHVHW2QFHWKH

ZDWHUWHPSHUDWXUHKDVFRROHGEHORZWKLVSRLQWWKHSRZHUVXSSO\

WRWKHZDWHUKHDWHUPXVWEHWXUQHGRIIDQGRQDJDLQWRUHVHWWKH

FRQWUROV\VWHP

THERMOSTAT CONTROL

Water temperature over 125°F (52°C) can cause severe burns instantly resulting in severe injury or death.

Children, the elderly and the physically or mentally disabled are at highest risk for scald injury.

Feel water before bathing or showering.

Temperature limiting devices such as mixing valves must be installed when required by codes and to ensure safe temperatures at fixtures.

+RWZDWHUWHPSHUDWXUHVUHTXLUHGIRUDXWRPDWLFGLVKZDVKHUDQG

ODXQGU\XVHFDQFDXVHVFDOGEXUQVUHVXOWLQJLQVHULRXVSHUVRQDO LQMXU\ DQGRU GHDWK 7DEOH  VKRZV WKH DSSUR[LPDWH WLPHWR

EXUQUHODWLRQVKLSIRUQRUPDODGXOWVNLQ

7KHWHPSHUDWXUHDWZKLFKLQMXU\RFFXUVYDULHVZLWKWKHSHUVRQ¶V DJH DQG GXUDWLRQ RI H[SRVXUH 7KH VORZHU UHVSRQVH WLPH RI

FKLOGUHQWKHHOGHUO\RUGLVDEOHGSHUVRQVLQFUHDVHVWKHKD]DUGV

WRWKHP,IDQ\RQHXVLQJKRWZDWHUSURYLGHGE\WKHZDWHUKHDWHU

EHLQJLQVWDOOHG¿WVLQWRRQHRIWKHVHJURXSVRULIWKHUHLVDORFDO

FRGH RU VWDWH ODZ UHTXLULQJ D FHUWDLQ ZDWHU WHPSHUDWXUH DW WKH SRLQWRIXVHWKHQVSHFLDOSUHFDXWLRQVPXVWEHWDNHQ

,QDGGLWLRQWRXVLQJWKHORZHVWSRVVLEOHWHPSHUDWXUHVHWWLQJWKDW VDWLV¿HV WKH GHPDQG RI WKH DSSOLFDWLRQ D PL[LQJ YDOYH FDQ EH LQVWDOOHGDWWKHZDWHUKHDWHU VHH)LJXUHRQSDJH RUDWWKHKRW

ZDWHUWDSVWRIXUWKHUUHGXFHV\VWHPZDWHUWHPSHUDWXUH

1HYHUDOORZVPDOOFKLOGUHQWRXVHDKRWZDWHUWDSRUGUDZWKHLURZQ

EDWKZDWHU1HYHUOHDYHDFKLOGRUGLVDEOHGSHUVRQXQDWWHQGHGLQ

DEDWKWXERUVKRZHU

7KHZDWHUKHDWHUVKRXOGEHORFDWHGLQDQDUHDZKHUHWKHJHQHUDO

SXEOLFGRHVQRWKDYHDFFHVVWRVHWWHPSHUDWXUHV

6HWWLQJWKH2SHUDWLQJ6HW3RLQWDWƒ) ƒ& ZLOOUHGXFHWKH ULVN RI VFDOGV 6RPH 6WDWHV UHTXLUH VHWWLQJV DW VSHFL¿F ORZHU WHPSHUDWXUHV

TABLE 10

Water Temperature

 

Time for 1st Degree Burn

Time for Permanent Burns

 

QG UG'HJUHH

ƒ) ƒ&

 

/HVV6HYHUH%XUQV

 

0RVW6HYHUH%XUQV

 

 

QRUPDOVKRZHUWHPS

 

 

 

 

SDLQWKUHVKROG

 

 

 

35 minutes

45 minutes

 

 

1 minute

5 minutes

 

 

VHFRQGV

VHFRQGV

 

 

VHFRQGV

VHFRQGV

 

 

VHFRQG

VHFRQGV

 

 

instantaneous

VHFRQG

86*RYHUQPHQW0HPRUDQGXP&36&3HWHU/$UPVWURQJ6HSW

7KH ZDWHU KHDWHUV FRYHUHG LQ WKLV PDQXDO DUH HTXLSSHG ZLWK DQ HOHFWURQLF FRQWURO V\VWHP WR UHJXODWH WKH ZDWHU WHPSHUDWXUH LQVLGHWKHVWRUDJHWDQN7KHFRQWUROV\VWHPVHQVHVWHPSHUDWXUH

IURP WZR IDFWRU\ LQVWDOOHG WHPSHUDWXUH SUREHV RQH LQVWDOOHG LQ WKH WRS RI WKH VWRUDJH WDQN DQG RQH LQVWDOOHG QHDU WKH ERWWRP 6HH7RS9LHZVRQSDJHDQG)LJXUHRQSDJHIRUORFDWLRQ

7KH ³2SHUDWLQJ 6HW 3RLQW´ LV DGMXVWHG WR UHJXODWH ZDWHU WHPSHUDWXUHLQVLGHWKHVWRUDJHWDQN7KLVLVDQDGMXVWDEOHXVHU VHWWLQJ LQ WKH FRQWURO V\VWHP¶V ³7HPSHUDWXUHV 0HQX´ 7KLV DQG DOO FRQWURO V\VWHP PHQXV DUH DFFHVVHG WKURXJK WKH 8,0 XVHU LQWHUIDFHPRGXOH ORFDWHGRQWKHIURQWRIWKHZDWHUKHDWHUVHH )LJXUH

7KH2SHUDWLQJ6HW3RLQWLVDGMXVWDEOHIURPƒ) ƒ& WRƒ)

ƒ& 7KHIDFWRU\VHWWLQJLVƒ) ƒ& 6HH2SHUDWLQJ6HW 3RLQW$QG'LIIHUHQWLDO$GMXVWPHQWRQSDJHIRULQVWUXFWLRQVRQ KRZWRDGMXVWWKH2SHUDWLQJ6HW3RLQWDQGRWKHUXVHUVHWWLQJV

6HWWKH2SHUDWLQJ6HW3RLQWDWWKHORZHVWVHWWLQJZKLFKSURGXFHV

DQDFFHSWDEOHKRWZDWHUVXSSO\7KLVZLOODOZD\VSURYLGHWKHPRVW

HQHUJ\HI¿FLHQWRSHUDWLRQ

HIGH TEMPERATURE APPLICATIONS

+LJKHU RSHUDWLQJ WHPSHUDWXUHV FDXVH PRUH ZHDU RQ DOO ZDWHU KHDWHUV DQG ZLOO GHFUHDVH WKH OLIH VSDQ RI WKH ZDWHU KHDWHU

&RQVLGHU LQVWDOOLQJ D VPDOO ERRVWHU ZDWHU KHDWHU IRU KLJK WHPSHUDWXUH DSSOLFDWLRQV VXFK DV FRPPHUFLDO GLVKZDVKHUV WR UDLVHWKHRXWOHWWHPSHUDWXUHIURPWKHODUJHUSULPDU\ZDWHUKHDWHU WRWKHGHVLUHGSRLQWRIXVHWHPSHUDWXUH

&RQWDFW\RXUORFDOGLVWULEXWRURUFDOOWKHWHFKQLFDOVXSSRUWSKRQH

QXPEHU OLVWHG RQ WKH EDFN FRYHU RI WKLV PDQXDO IRU IXUWKHU

WHFKQLFDODVVLVWDQFH

 

 

 

MANUFACTURER / MODEL INFORMATION

 

Tank Temperature

 

103°F

UP

Operating Set Point

 

120°F

 

 

Status: Heating

 

 

 

OFF

 

 

DN

GAS

O

 

 

N

 

 

MENU

 

HELP

 

Figure 55

43

Image 43
Contents 7KDQN\RXIRUEX\LQJWKLVHQHUJ\HI¿FLHQWZDWHUKHDWHU Installation Operation Service Maintenance Limited WarrantyDSSUHFLDWH\RXUFRQ¿GHQFHLQRXUSURGXFWV American Water HeaterTable of Contents KHDWHUVFRYHUHGLQWKLVPDQXDO Safe INSTALLATION, USE and ServiceApprovals SRWHQWLDOHSRVXUHWRVXFKVXEVWDQFHVHydrogen GAS Flammable General Safety InformationPrecautions Grounding InstructionsFire or Explosion Hazard Installing, using or servicing Water heaterAbbreviations Used Preparing for the InstallationQualified Installer or Service Agency IntroductionBasic Operation Features and ComponentsHCG3 120 & 150 Components TOP Views,QWDNHDLUFRQQHFWLRQLQFK39& HCG3 199 & 250 Components 3RZHUHGDQRGHURGV7KHZDWHUKHDWHU¶VFRYHUHGLQWKLV RQSDJHDQG&RQGHQVDWHUDLQ,QVWDOODWLRQRQSDJH Side Views DWHURXWOHWSLSH´137FRQQHFWLRQ 9HQWFRQQHFWLRQ HKDXVWHOERZ LQFK39&Front Installation ConsiderationsRough in Dimensions TOP ViewsGAS Line Connection Size Recovery CapacitiesGAS Pressure Requirements Locating the Water HeaterCirculation Pumps Extended Vent TerminationsOptional Concentric Terminations Hard WaterSupply GAS Regulator Installation RequirementsPower Supply GAS Supply SystemsThermal Expansion Mixing ValvesDishwashing Machines Closed Water SystemsValve Discharge Pipe Requirements TEMPERATURE-PRESSURE Relief ValveCondensate Drain Water Trap Condensate DrainCombustible Material Storage Contaminated AIRUnusually Tight Construction AIR RequirementsUnconfined Space Confined SpaceOutdoor AIR Through TWO Horizontal Ducts Fresh AIR Openings for Confined SpacesOutdoor AIR Through TWO Openings Outdoor AIR Through ONE OpeningWKDQLQFKHV FP  Outdoor AIR Through TWO Vertical DuctsAIR from Other Indoor Spaces RXWGRRUV6HHLJXUHSignage Installation of Carbon Monoxide DetectorsCommonwealth of Massachusetts Inspection Approved Carbon Monoxide DetectorsGeneral Venting Instructions Venting InstallationPower Vent Configuration General Venting InformationAdjustment Procedure INSPECT/ADJUST Intake AIR TEE FittingHCG3 100T 199 & SUF 250 Intake AIR Connection Venting Requirements Power Vent Installation Venting Installation SequenceDirect Vent Installation Pipe Field Supplied Installed Intake AIRField Supplied Factory Installed Intake AIR Connection Remove for Direct VentVertical Termination Installation Field Supplied STRAP/SUPPORT Vertical Terminations InstallationVertical Termination Direct Vent Vertical Terminations Flat Roof ClearanceOHDVWLQFKHV FP 6HHLJXUH Sidewall Termination InstallationSidewall Termination Installation SDVVWKURXJKWKHZDOOVDPHORFDWLRQ Concentric Termination InstallationConcentric Termination Flat Roof Clearance QDWLRQDOFRGHVPXVWEHPDLQWDLQHGInch Concentric Termination KIT Inch Concentric Termination InstallationEight Concentric Terminations TWO Concentric TerminationsThree Concentric Terminations Four Concentric TerminationsJURXSVGHSHQGLQJRQDYDLODEOHVSDFH Multiple Concentric Termination ArrangementsTwo Concentric Terminations Eight Concentric TerminationsVenting Arrangements Power Vent HorizontalDirect Vent Horizontal Direct Vent Horizontal Vent Vertical Intake Direct Vent Vertical Vent Horizontal IntakeDirect Vent Horizontal Concentric Power Vent Termination Clearances Sidewall Power VentDirect Vent Termination Clearances Sidewall Direct VentInstallation Instructions Water Heater InstallationCondensate Drain Installation Installation NotesSupply GAS Line Sizing Metric Units Supply GAS Line InstallationGAS Line Sizing Supply GAS Line Sizing U. S. UnitsPurging GAS Line Leak TestingGAS Line Connection Connecting An External Supervisory Control Electrical WiringPower Supply Connections ENABLE/DISABLE CircuitWater Potable Heating and Space Heating Water Piping DiagramsWater Line Connections Valve Discharge Pipe Thermometers not SuppliedThermostat Control Temperature RegulationHigh Temperature Limit Control ECO High Temperature ApplicationsMenu Help Control System OperationOverview Control System NavigationIcon Description Status IconsMenu Description Operating StatesState Description Control System MenusUpdate Cancel User Settings & Control System MenusBack Help Change Back Help Hrs 22 mins Elapsed TimeDay 0 hrs 0 mins Burner On TimeYesno Back AdvancedView Back Help ECOYour Company Name Here UpdateSelect Back Help NamePrior to Start UP Start UPInitial Start UP GAS Valve TOP Detail View GAS Valve / Venturi Assembly TOP ViewGAS Valve TOP View GAS Valve Side ViewPDQXDOIRUIXUWKHUDVVLVWDQFH Supply GAS Pressure AdjustmentMultiple Water Heater Installations Manifold GAS Pressure AdjustmentFLUFXPVWDQFHV Checking the Firing Rate High Altitude Installations‡  VHFRQGVLQRQHKRXU To Turn OFF GASDQGRSHUDWLQJWKHZDWHUKHDWHU On/Off SwitchLighting the Water Heater Lighting & Operation LabelsDo not TRY to Light the Burner by Hand Tank Temperature 103F Operating Set Point 120FMenu Help Installation Checklist Sequence of Operation TroubleshootingYES no Sequence of Operation Flow ChartMomentary Ignition Operational ProblemsInstallation Errors Rough STARTING, Rough OperationFault and Alert Conditions Back Advanced Possible Causes CHECK/REPAIR Displayed FAULT/ALERT MessageHeater Information menu see Heater Information on No Anode Voltage Blower Prover FailureGeneral Maintenance Schedule MaintenanceDraining and Flushing Manual Lime Scale Removal Filling the Water HeaterSediment Removal Lime Scale RemovalVent System Powered Anode RodsDrain Valve and Access Panels TEMPERATURE-PRESSURE Relief Valve TestChanging Number of Ignition Trials Before Lock OUT DiagramsS1 Dipswitch CCB Central Control Board LayoutGround VAC Neutral VAC HOT HCG3 120 & 150 Wiring DiagramTransformer 50VA ON/OFF11 on J6 Plug HCG3 199 & 250 Wiring DiagramGround Strip Burner Ground Inside CCB Burner Bolt Enclosure Circulation Pump Wiring Diagrams Finished Floor Cold Water Supply Expansion Tank Water Piping DiagramsLine Temperature Control HOT Water Return HOT Water Outlet Pipe T&P to Open Drain6HH0LLQJ9DOYHVRQSDJH 6HH&ORVHG6\VWHPVDQG7KHUPDOSDQVLRQRQSDJH6HHDWHU/LQH&RQQHFWLRQVRQSDJH HIRUHLQVWDOODWLRQRIZDWHUSLSLQJUHYLHZWKHIROORZLQJHOT Water Outlet Storage TankPipe T&P to Open Drain Finished Floor Storage Tanktemperature Water Piping Diagrams Open Drain HOT Water Return Cold Water Supply Expansion Tank HOT Water Outlet Pipe T&P to Open Drain Finished Floor Temperature & PressureFull Port Ball Valve 6&XVWRPHUV Page ZZZDPHULFDQZDWHUKHDWHUFRP

AHCG/HCG3 60T 120 - AHCG3/HCG3 100T 250, Commercial Gas Water Heaters specifications

American Water Heater's Commercial Gas Water Heaters, particularly the AHCG/HCG3 60T 120 and AHCG3/HCG3 100T 250 models, stand out in the market for their impressive performance and reliable efficiency. Designed to meet the demanding needs of commercial applications, these gas water heaters provide an optimal solution for businesses requiring consistent hot water supply.

One of the main features of the AHCG/HCG3 series is its exceptional heat capacity. The models are engineered to deliver high recovery rates, ensuring that adequate hot water is available even during peak demand periods. The AHCG/HCG3 60T 120 can yield a robust output, ideal for smaller to medium-sized facilities, while the AHCG3/HCG3 100T 250 is designed for larger operations that require enhanced capacity.

These water heaters incorporate innovative technologies to maximize efficiency. The use of a high-efficiency burner system significantly reduces gas consumption, earning these models an Energy Factor rating that complies with modern energy standards. Additionally, the inclusion of a direct vent design allows for safe and efficient exhaust management, further promoting the energy-saving capabilities of these units.

The design of these commercial water heaters prioritizes durability and longevity. Constructed with heavy-duty components, including a corrosion-resistant water tank, these models are built to last, reducing the need for frequent replacements and maintenance. They also feature an advanced control system that monitors and adjusts the operation for optimal performance, enhancing user experience while decreasing operational costs.

Another notable characteristic of the AHCG/HCG3 series is their flexibility in installation. Both the 60T 120 and the 100T 250 models offer various venting options, which means they can easily fit into the existing infrastructure of many commercial facilities. This versatility facilitates a seamless integration process, saving time and resources during installation.

With a commitment to providing effective hot water solutions, American Water Heater continues to innovate, making the AHCG/HCG3 series a valuable addition to any commercial establishment. From restaurants to laundromats and beyond, these gas water heaters deliver reliable performance, ensuring that businesses can operate smoothly and efficiently.