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• Excessive manifold gas pressure - see Table 4 on page

13 and Manifold Gas Pressure Adjustment on page 51.

• Vent (exhaust) gas recirculation at the vent and intake air

pipe terminations on Direct Vent installations - see Direct

Vent Installation on page 23.

• Excessive equivalent lengths of intake air and/or vent

(exhaust) piping installed - see Venting Requirements on

page 22.

• Debris clogging/blocking the intake air screen(s) - see

Figure 17 on page 24 and Figure 22 on page 26.

• Debris clogging/blocking the Main Burner - see Figure 2 on

page 7.

momentary ignition

Burn Hazard

Do not reach into the burner housing or

combustion chamber if the water heater

is still hot.

•

Allow the water heater to cool and always use

gloves when handling the main burner.

•

The combustion chamber and burner sleeve

and housing become very hot during operation.

CAUTION

If the Main Burner ignites momentarily but does not sustain

ignition allow the water heater to try to ignite up to two more

times until control system locks out and the Ignition Failure Fault

message is displayed on the control system's LCD. If the water

heater is experiencing rough starts - see Rough Starting, Rough

Operation on this page. For momentary ignition problems without

rough starting check the following:

• Incorrect manifold gas pressure - see Table 4 on page 13

and Manifold Gas Pressure Adjustment on page 51.

• Undersized supply gas line (low volume of supply gas) - see

Supply Gas Line on page 13.

• Supply gas regulator is not installed per installation

requirements (erratic gas supply volume/pressures) - see

Supply Gas Regulator on page 13.

• See the list of possible causes and things to check and

repair for the Ignition Failure Fault message on page 58.

• Debris clogging/blocking the intake air screen(s) - see

Figure 17 on page 24 and Figure 22 on page 26.

• Debris clogging/blocking the Main Burner - see Figure 2 on

page 7.

not enough or no hot water

• No power to the water heater, check breaker, fuses and the

water heater on/off switch.

• Hot water supply valve(s) to fixtures closed.
• Operating Set Point is set too low, Differential setting is set

too high. See Control System Operation on page 42.

• Upper and/or Lower Probe Offset settings are causing the

heating cycles to terminate prematurely - see Temperatures

Menu (cont) on page 46.

• Ensure there is not any external supervisory control (using

the enable/disable circuit) disabling heating operation. See

Enable/Disable Circuit on page 39.

• The heating capacity of the water heater has been

exceeded, the water heater is unable to meet demand.

operational problems

Read and understand this instruction

manual and the safety messages

herein before installing, operating or

servicing this water heater.
Failure to follow these instructions and

safety messages could result in death

or serious injury.
This manual must remain with the

water heater.

This section of the manual is intended to be an aid in correcting

common operational problems, it is not all inclusive. The installer

may be able to observe and correct certain problems which

might arise when the water heater is first put into operation or

when it is re-fired after a prolonged shutdown. However, only

qualified service agents, as defined in Qualifications on page 6,

using appropriate test equipment, should perform any service

procedures on the water heater.

note:

Call the technical support phone number listed on the

back cover of this manual for further technical assistance or to

locate a qualified service agent in your area.

installation errors

Operational problems on new installations are often the result of

installation requirements that have been overlooked rather than

failed components. IE: A "Low Gas Pressure" Fault condition

is most often caused by low supply gas pressure rather than a

defective Low Gas Pressure switch. Rough starting and rough

operation are often caused by undersized supply gas lines and/

or the absence of a supply gas regulator at the water heater.
Prior to performing any operational checks inspect the water

heater installation to ensure all installation requirements and

instructions have been maintained and followed. See the

Installation Checklist on page 54

note:

Costs to correct installation errors are not covered under

the limited warranty.

rough starting, rough operation

Fire and Explosion Hazard

Turn off gas lines during installation.
Contact a qualified installer or service

agency for installation and service.

Excessive gas pressure to gas valve can

cause serious injury or death.

Do not use water heater with any gas

other than the gas shown on the rating

label.

• Undersized supply gas line (low volume of supply gas) - see

Supply Gas Line on page 13.

• Supply gas regulator is not installed per installation

requirements (erratic gas supply volume/pressures) - see

Supply Gas Regulator on page 13.

• Excessive supply gas pressure - see Table 4 on page 13

and Supply Gas Pressure Adjustment on page 51.

Содержание (A)HCG3 130T 300

Страница 1: ...N SERVICE MAINTENANCE LIMITED WARRANTY PO Box 1597 500 Princeton Road Johnson City TN 37605 WARNING If the information in these instructions is not followed exactly a fire or explosion may result caus...

Страница 2: ...6 Water Piping Diagrams 67 Limited Warranty 74 Table Of Contents Safe Installation Use and Service 3 General Safety Information 4 Precautions 4 Introduction 6 Qualifications 6 Preparing For The Instal...

Страница 3: ...use cancer birth defects or other reproductive harm and requires businesses to warn of potential exposure to such substances This product contains a chemical known to the State of California to cause...

Страница 4: ...as air escaping through the pipe as the water begins to flow There should be no smoking or open flame near the faucet at the time it is open General Safety Information Read and understand this instru...

Страница 5: ...ment trap in accordance with NFPA 54 Use joint compound or Teflon tape compatible with propane gas Fire and Explosion Hazard Turn off gas lines during installation Contact a qualified installer or ser...

Страница 6: ...indicated in the piping Introduction diagrams as these are necessary for checking the operation of the water heater The principal components of the water heater are identified in Features And Componen...

Страница 7: ...ITER COMBUSTION BLOWER FLAME SENSOR MAIN BURNER radial design BLOWER FLANGE INTAKE AIR combustion air CONNECTION 4 INCH PVC Figure 2 Hot Surface Igniter The control system energizes the Hot Surface Ig...

Страница 8: ...14 15 17 1 18 16 10 8 FRONT Top View Components 1 Water Heater s 120 VAC on off switch 2 Powered anode rods The water heater s covered in this manual are equipped with two powered non sacrificial ano...

Страница 9: ...e 16 and Condensate Drain Installation on page 36 Side Views 1 Cleanout access panel covers water heater cleanout opening 2 CCB enclosure see Figure 3 on page 8 for description 3 120 VAC junction box...

Страница 10: ...F 30 F 40 F 50 F 60 F 70 F 80 F 90 F 100 F 110 F 120 F 130 F 140 F Btu hr kW C 11 C 17 C 22 C 28 C 33 C 39 C 44 C 50 C 56 C 61 C 67 C 72 C 78 C A HCG 130T 300 Natural 300 000 88 GPH 1746 1164 873 699...

Страница 11: ...page 21 Fire or Explosion Hazard Read instruction manual before installing using or servicing water heater Avoid all ignition sources if you smell gas Do not store or use gasoline or other flammable v...

Страница 12: ...e Circulation Pump Wiring Diagrams on page 66 for electrical hookup information Install in accordance with the current edition of the National Electrical Code NFPA 70 or the Canadian Electrical Code C...

Страница 13: ...um supply gas pressure readings are taken while gas is not flowing static pressure AND while gas is flowing dynamic pressure Supply pressure must never fall below the minimum values Supply gas pressur...

Страница 14: ...e 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 Temperatu...

Страница 15: ...emperature pressure relief valve must be installed in opening provided Can result in overheating and excessive tank pressure Can cause serious injury or death This water heater is provided with a prop...

Страница 16: ...in Installation on page 36 Combustible Material Storage Fire or Explosion Hazard Read instruction manual before installing using or servicing water heater Avoid all ignition sources if you smell gas D...

Страница 17: ...rea through a design of louver or grille or screen is known it shall be used in calculating the size of opening required to provide the free area specified Where the louver and grille design and free...

Страница 18: ...egate input rating of all appliances installed in the enclosure When ducts are used they shall be of the same cross sectional area as the free area of the openings to which they connect The minimum di...

Страница 19: ...section of the manual are a reference for the openings that provide fresh air into confined spaces only Do not refer to these illustrations for the purpose of vent installation See Venting Installati...

Страница 20: ...inal 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 obstructio...

Страница 21: ...ce or if the pipe cannot move freely through a wall penetration the pipe may be stressed or high thermal stresses may be formed when the pipe heats up and expands Install accordingly to minimize such...

Страница 22: ...n the back cover of this manual to order 4 Concentric Termination Part 9006328005 6 Concentric Termination Part 9006144005 Venting Requirements Approved Materials Approved vent and intake air pipe mat...

Страница 23: ...r heater components 10 All vent exhaust pipes must be pitched a minimum of a 1 4 inch per foot back to the water heater to allow drainage of condensate 11 If installing 4 inch vent pipe connect the ve...

Страница 24: ...g in a Power Vent configuration vertically through the roof the following instructions must be followed The vent termination must be oriented facing downward as shown in Figure 19 and Figure 20 on pag...

Страница 25: ...ns must be a minimum of 12 inches 30 cm 18 inches 45 cm in Canada above the average or expected snow level as shown in Figure 19 and Figure 21 on page 25 6 When the intake air and or vent piping from...

Страница 26: ...eter hole for 6 inch pipe where the pipe s will pass through the wall Note Beware of concealed wiring and piping when cutting through the wall 8 Cut a length s of pipe being installed 3 5 inches 8 9 c...

Страница 27: ...ll or structure as shown in Figure 24 and Figure 25 Note If this required distance to a parapet vertical wall or structure cannot be maintained standard terminations must be used See Vertical Terminat...

Страница 28: ...assembly and secure it to the roof 5 Seal around the plumbing boot or roof flashing 6 Cement the vent cap onto the vent pipe Alternately a field supplied stainless steel screw may be used to secure th...

Страница 29: ...IED LENGTH 25 3 8 INCHES 64 cm MAXIMUM ALLOWABLE LENGTH 45 3 8 INCHES 115 cm MINIMUM ALLOWABLE LENGTH 12 INCHES 30 cm VENT CAP STAINLESS STEEL VENT TERMINAL WITH SCREEN INTAKE AIR PIPE INTAKE AIR CONN...

Страница 30: ...tions are maintained Ensure multiple terminations are arranged or grouped as required Note These clearances must be maintained to prevent the recirculation of vent exhaust gases to the intake air Clea...

Страница 31: ...ALL ROOF Figure 39 Multiple Concentric Termination Arrangements The illustrations on this page show some of the installation arrangements for multiple concentric terminations that are allowed See Mult...

Страница 32: ...32 Venting Arrangements Power Vent Vertical Figure 40 Direct Vent Vertical Figure 42 Power Vent Horizontal Figure 41 Direct Vent Horizontal Figure 43...

Страница 33: ...g Arrangements Direct Vent Vertical Vent Horizontal Intake Figure 44 Direct Vent Vertical Concentric Figure 46 Direct Vent Horizontal Vent Vertical Intake Figure 45 Direct Vent Horizontal Concentric F...

Страница 34: ...to building or combustion air inlet to any other appliance 6 inches 15 cm for appliances up to 10 000 Btu hr 3 kW 12 inches 30 cm for appliances between 10 000 Btu hr 3 kW and 100 000 Btu hr 30kW 36 i...

Страница 35: ...into building or combustion air inlet to any other appliance 6 inches 15 cm for appliances up to 10 000 Btu hr 3 kW 12 inches 30 cm for appliances between 10 000 Btu hr 3 kW and 100 000 Btu hr 30 kW...

Страница 36: ...your distributor or Service Agency Field supplied materials required for installation include Approved PVC cement and PVC primer 1 2 inch PVC pipe minimum length to equal the distance between the wate...

Страница 37: ...SHUTOFF VALVE TEE FITTING PIPE CAP SEDIMENT TRAP DIRT LEG Figure 52 Ensure all gas pipe is clean on the inside before installation To trap any dirt or foreign material in the gas supply line a sedime...

Страница 38: ...ff the Main Gas Shutoff valve to the water heater Gas Line Leak Testing Fire and Explosion Hazard Leak test before placing the water heater in operation Disconnect gas piping and main gas shutoff valv...

Страница 39: ...heater caused by freezing temperatures is not covered under the limited warranty Electrical Wiring All electrical work must be installed in accordance with the National Electrical Code ANSI NFPA 70 or...

Страница 40: ...ixing Valves on page 14 2 Dishwashing Machines on page 14 3 Temperature Pressure Relief Valve on page 15 4 Closed Systems and Thermal Expansion on page 14 5 For multiple water heater installations see...

Страница 41: ...erature Probe two red wires see Figure 3 on page 8 for location The ECO switch contacts will open when the water temperature reaches approximately 202 F 94 C and close at approximately 140 F 49 C If t...

Страница 42: ...the control system The ECO energy cut out flame sensor pressure switches and temperature probes are monitored by the control system The Combustion Blower igniter 24 VAC Gas Valve and anode rods are a...

Страница 43: ...See Figure 3 on page 8 for Blower Prover Switch location The Hot Surface Igniter is being energized See Figure 2 on page 7 for Hot Surface Igniter location The igniter has been energized and the cont...

Страница 44: ...from the combustion chamber at the end of a heating cycle Fault The control system has detected a Fault condition Heating operation is disabled until the Fault condition is corrected Power to the wat...

Страница 45: ...ll control system menus from the Main Menu With Temperatures menu selected highlighted in black in the Main Menu screen press the Operational Button under SELECT to enter the Temperatures menu If the...

Страница 46: ...obe Offset 0 F CHANGE BACK HELP Temperatures Bottom of Menu Differential 8 F Tank Temperature 120 F Upper Temperature 122 F Lower Temperature 118 F Heater Regulated to Tank Upper Probe Offset 0 F Lowe...

Страница 47: ...ulated time the control system water heater has been energized Burner On Time Total accumulated time the control system has been in the heating operating state burner run time Cycle Count Total accumu...

Страница 48: ...event will replace the oldest Press the Operational Button under VIEW to view details for each Fault or Alert message stored 1 Blocked Air Intake A7 51 mins ago 2 Blocked Exhaust A8 54 mins ago 3 Low...

Страница 49: ...is menu item Show Contact Information Yes Change Contact Name Change Contact Phone Current Contact Info 000 000 0000 Access Code UPDATE CANCEL Service Contact Information Using the UP and DOWN buttons...

Страница 50: ...as leaks see Gas Line Leak Testing on page 38 and repair any leaks found Initial Start Up Required Test Equipment Two U tube manometers recommended ranges 0 14 W C 0 3 5 kPa and 0 35 W C 0 8 7 kPa or...

Страница 51: ...d allow the manifold gas pressure to stabilize for several minutes before making further adjustments 4 Replace the gas pressure regulator cover screw 5 Cycle the burner on and off several times to che...

Страница 52: ...al Adjustment on page 45 2 When the water heater has completed its shut down sequence and enters the standby mode turn the water heater s on off switch to the off position 3 Push in the gas control kn...

Страница 53: ...lt in fire or explosion Do not use this appliance if any part has been under water Immediately call a qualified service technician to inspect the appliance and to replace any part of the control syste...

Страница 54: ...devices If the tank temperature drops below the Operating Set Point minus the Differential setting the control will automatically return to Step 2 and repeat the operating cycle Troubleshooting Insta...

Страница 55: ...tem Igniter is energized for warm up period 24 Volt Gas Valve is energized gas flows to Main Burner Is flame sensed at the Main Burner control system monitors the flame sensor Control System Locks Out...

Страница 56: ...disable circuit disabling heating operation See Enable Disable Circuit on page 39 The heating capacity of the water heater has been exceeded the water heater is unable to meet demand Operational Probl...

Страница 57: ...gthening the time required to heat water to desired temperature Hot water piping leaks open faucets water heater drain valve leaking or open Sediment or lime scale accumulation may be affecting water...

Страница 58: ...ow the required minimum pressure see Table 4 on page 13 Supply gas is turned off at the Main Shutoff Valve Supply gas pressure is dropping when other gas fired appliances on a common supply gas line a...

Страница 59: ...for switch location Excessive equivalent pipe length exceeded the maximum number of 90 elbows or wrong pipe size used in the intake air piping system see Venting Requirements on page 22 Balance plate...

Страница 60: ...General Keep appliance area clear and free from combustible materials gasoline and other flammable vapors and liquids See Locating The Water Heater on page 11 Water heater maintenance includes period...

Страница 61: ...Ensure the drain hose is secured before and during the entire flushing procedure Flushing is performed with system water pressure applied to the water heater 6 Open the water heater drain valve to flu...

Страница 62: ...d with a powered anode system The anode rods 2 are of a permanent design and do not need replacing unless damaged Inspection and cleaning should be performed once a year Note Follow the instructions t...

Страница 63: ...numbers 1 4 On the other side of the dipswitch is the word OPEN The dipswitches are rocker type switches if one side of the rocker is down the other side will be up Pressing a rocker down on the side...

Страница 64: ...VALVE B CENTRAL CONTROL BOARD C C 6 J 5 J 4 J 7 J 5 1 J 6 1 J 0 1 J 3 1 J 2 J 3 J 1 J TRANSFORMER INSIDE CCB ENCLOSURE 50VA GROUND STRIP BURNER GROUND BURNER BOLT ON OFF SWITCH GROUND 120 VAC NEUTRAL...

Страница 65: ...R PROVER 24 VAC GAS VALVE B C C 6 J 5 J 4 J 7 J 5 1 J 6 1 J 0 1 J 3 1 J 2 J 3 J 1 J TRANSFORMER 50VA GROUND STRIP BURNER GROUND BURNER BOLT LOW GAS PRESSURE SWITCH 1 BLACK RED 2 WHITE 1 BLACK 2 BLACK...

Страница 66: ...IRCUIT DO NOT SHARE POWER WITH APPLIANCE AS THIS MAY CAUSE ELECTRICAL LINE NOISE AND LEAD TO ERRATIC CONTROL SYSTEM OPERATION CIRCULATING PUMP WIRING DIAGRAM DISHWASHER LOOP WITH TOGGLE SWITCH FIELD S...

Страница 67: ...eview the following 1 See Mixing Valves on page 14 2 See Dishwashing Machines on page 14 3 See Temperature Pressure Relief Valve on page 15 ONE WATER HEATER SINGLE TEMPERATURE WITH BUILDING RECIRCULAT...

Страница 68: ...es on page 14 3 See Temperature Pressure Relief Valve on page 15 ONE WATER HEATER TWO TEMPERATURE WITH HIGH TEMPERAURE LOOP RECIRCULATION WITH BUILDING RECIRCULATION LEGEND TEMPERATURE PRESSURE RELIEF...

Страница 69: ...ve on page 15 ONE WATER HEATER SINGLE TEMPERATURE WITH VERTICAL STORAGE TANK FORCED RECIRCULATION WITH BUILDING RECIRCULATION LEGEND TEMPERATURE PRESSURE RELIEF VALVE PRESSURE RELIEF VALVE CIRCULATING...

Страница 70: ...WATER HEATER SINGLE TEMPERATURE WITH HORIZONTAL STORAGE TANK FORCED RECIRCULATION WITH BUILDING RECIRCULATION LEGEND TEMPERATURE PRESSURE RELIEF VALVE PRESSURE RELIEF VALVE CIRCULATING PUMP DRAIN FUL...

Страница 71: ...llowing 1 See Mixing Valves on page 14 2 See Dishwashing Machines on page 14 3 See Temperature Pressure Relief Valve on page 15 TWO WATER HEATERS SINGLE TEMPERATURE WITH BUILDING RECIRCULATION LEGEND...

Страница 72: ...Mixing Valves on page 14 2 See Dishwashing Machines on page 14 3 See Temperature Pressure Relief Valve on page 15 THREE WATER HEATERS SINGLE TEMPERATURE WITH BUILDING RECIRCULATION LEGEND TEMPERATURE...

Страница 73: ...ves on page 14 2 See Dishwashing Machines on page 14 3 See Temperature Pressure Relief Valve on page 15 FOUR WATER HEATERS SINGLE TEMPERATURE WITH BUILDING RECIRCULATION LEGEND TEMPERATURE PRESSURE RE...

Страница 74: ...ve method of controlling thermal expansion is also installed at the heater s and operational at all times The temperature and pressure relief valve installed on the heater is not an acceptable method...

Страница 75: ...75...

Страница 76: ...PO Box 1597 500 Princeton Road Johnson City TN 37605 Phone 800 456 9805 Fax 800 999 5210 www americanwaterheater com...

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