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100304509_2000545232_Rev. 01

Some people are more likely to be permanently injured
by  hot  water  than  others.  These  include  the  elderly,
children, the infirm and the physically/mentally disabled.
Table  1  (published  by  U.S.  Government  Memorandum,
1978)  shows  the  approximate  time-to-burn  relationship
for normal adult skin. If anyone using hot water provided
by the water heater being installed fits into one of these
groups, special precautions must be taken.

Water

Temperature

°F

Time for 1st

Degree Burns

(Less Severe Burns)

Time for Permanent

Burns 2nd & 3rd

Degree (Most

Severe Burns)

110

(normal shower temp.)

116

(pain threshold)

116

35 minutes

45 minutes

122

1 minute

5 minutes

131

5 seconds

25 seconds

140

2 seconds

5 seconds

149

1 second

2 seconds

154

instantaneous

1 seconds

(U.S. Government Memorandum, C.P.S.C., Peter L.

Armstrong, Sept. 15,1978)

Table 1.

In addition to using lowest possible temperature setting
that  satisfies  demand  of  application,  a  mixing  valve
should  be  installed  at  water  heater  (see  Figure  7  and
Figure 8) or at hot-water taps to further reduce system
water temperature.
Mixing valves are available at plumbing supply stores. Consult
a Qualified Installer or Service Agency. Follow mixing valve
manufacturer’s instructions for installation of the valves.
Before  changing  the  factory  setting  on  the  thermostat,
read  the  "Operating  The  Temperature  Control  System"
section in this manual.

WATER HEATER OPERATION

Figure 10 shows the water heater’s sequence of operation
when a call for heat is initiated. The ignition control module
will attempt to light the burner three times. If the ignition
control does not detect ignition it will enter lockout mode
and flash the corresponding error code.

HEATER CONTROL

CHECKS TO ENSURE

BLOWER EXHAUST

PRESSURE SWITCH IS

OPEN

BLOWER IS ENERGIZED

CONTROL CHECKS TO

ENSURE: EXHAUST

PRESSURE SWITCH

CLOSES AND INTAKE

PRESSURE SWITCH

REMAINS CLOSED

INDICATING BLOWER IS

OPERATING AND THERE

ARE NO BLOCKAGES

(INTAKE OR EXHAUST)

TEMPERATURE SWITCH

REMAINS CLOSED

INDICATING VENT

TEMPERATURE IS NOT

ABOVE THE ALLOWABLE

LIMIT

IGNITER IS ENERGIZED

AND GAS VALVE IS

OPENED

BURNER COMES ON AND

THE FLAME IS SENSED

BY CONTROL

BURNER CONTINUES

TILL THE WATER IN

THE TANK REACHES

THERMOSTAT SETTING

GAS VALVE IS CLOSED

AND BURNER SHUTS

OFF

HEATER

THERMOSTAT

CALLS FOR

HEAT

HEATER

REMAINS ON

STANDBY UNTIL
NEXT CALL FOR

HEAT

BLOWER CONTINUES

FOR A POST PURGE

TIME

Figure 10.

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Содержание 300 Series

Страница 1: ...SHOULD BE DIRECTED TO THE LOCAL DEALER FROM WHOM THE WATER HEATER WAS PURCHASED IF YOU ARE UNSUCCESSFUL PLEASE CONTACT THE COMPANY LISTED ON THE RATING PLATE ON THE WATER HEATER SERIES 300 301 www statewaterheaters com Do not store or use gasoline or other flam mable 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 n...

Страница 2: ...s Side Wall 25 Termination Types 26 Side Wall Vent Termination Standard 26 Roof Vent Termination Standard 26 Side Wall Vent option For Cold Climates 27 Deluxe Horizontal Venting Kit 28 Pyramid Vent Terminal Mushroom Vent Terminal Connections To The Air Box Low Profile Side Wall Vent Termination 30 Installation Procedure Concentric Vent Termination 31 Multiple Concentric Vent Termination 32 Tee Ter...

Страница 3: ...injury This product is certified to comply with a maximum weighted average of 0 25 lead content as required in some areas IMPORTANT DEFINITIONS Qualified Installer A qualified installer must have ability equivalent to a licensed tradesman in the fields of plumbing air supply venting and gas supply including a thorough understanding of the requirements of the National Fuel Gas Code ANSI Z223 1 NFPA...

Страница 4: ...o not expose water heater control to excessive gas pressure Use only gas shown on rating plate Maintain required clearances to combustibles Keep ignition sources away from faucets after extended period of non use Fire or Explosion Hazard WARNING For continued protection against risk of fire Do not install water heater on carpeted floor Do not operate water heater if flood damaged Fire Hazard WARNI...

Страница 5: ...d damaged For operation above 10 100 a high altitude orifice must be installed Do not operate if soot buildup is present Do not obstruct water heater air intake with insulating jacket Do not obstruct blower air intake Do not place chemical vapor emitting products near water heater Gas and carbon monoxide detectors are available No vent damper installation is compatible with this power vented water...

Страница 6: ...ou don t follow safety rules the water heater will not operate properly It could cause DEATH SERIOUS BODILY INJURYAND OR PROPERTY DAMAGE This manual contains instructions for installation operation and maintenance of the gas fired water heater It also contains warnings throughout the manual that you must read and be aware of All warnings and instructions are essential to proper operation of the wa...

Страница 7: ...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 INSPECTION The state or local gas inspector of the side wall horizontally vented gas fueled equipment shall n...

Страница 8: ...ON HOT WATER OUT MASSACHUSETTS INSTALLATION REQUIREMENTS 1 CONNECT ELECTRONICALLY CONTROLLED TIMER TO AN ALL BRONZE PUMP PUMP MUST ACTIVATE EVERY 6 HOURS FOR 60 SECONDS TURN PUMP TIMER OFF BEFORE CLOSING PIPING LOOP SHUT OFF VALVE 2 ALL WATER PIPING MUST BE INSTALLED AND INSULATED IN ACCORDANCE WITH MASSACHUSETTS CODE 248 CMR 780 CMR 3 PIPING LOOP BETWEEN WATER HEATER AND AIR HANDLER MUST BE INSTA...

Страница 9: ...6 Rubber Coupling see Figure 5 27 Gear Clamp see Figure 5 28 Blower with Power Cord see Figure 5 29 Air Duct Adapter 30 Air Inlet Snorkel 31 Air Duct 32 Thermal Expansion Tank see Closed Water Systems and Thermal Expansion sections 33 Flame Sensor Rod see Figure 3 Figure 4 34 Sheet Metal Burner see Figure 3 Figure 4 35 Gas Orifice see Figure 3 Figure 4 36 Gas Manifold see Figure 3 Figure 4 37 Hot ...

Страница 10: ...harness has 120 VAC during operation See Vent Pipe Installation for more information The orifice on Natural gas models has Right hand thread the orifice on Propane LP models has Left hand thread For Natural gas models the Flare Nut has Right hand thread For Propane LP models the Flare Nut has Left hand thread REPLACEMENT PARTS AND DELIMING PRODUCTS Replacement parts and recommended delimer may be ...

Страница 11: ...CERTAIN MODELS ARE EQUIPPED WITH SIDE PLUMBING CONNECTIONS FOR SPACE HEATING THE HOT AND COLD FITTING ASSEMBLIES PART 100108524 CAN BE ORDERED THROUGH THE MANUFACTURER Figure 7 This appliance has been design certified as complying with ANSI CSAStandard for water heaters and are considered suitable for combination Water Potable Heating and Space Heating but not space heating only applications The w...

Страница 12: ...xingvalvesareavailableatplumbingsupplystores Consult a Qualified Installer or ServiceAgency Follow mixing valve manufacturer s instructions for installation of the valves Before changing the factory setting on the thermostat read the Operating The Temperature Control System section in this manual WATER HEATER OPERATION Figure 10 shows the water heater s sequence of operation when a call for heat i...

Страница 13: ...utes to purge the water lines of air and sediment and to ensure complete filling of the tank The electrical power may then be turned on Verify proper operation after servicing See also Installation Checklist BLUE 120VAC 60HZ WALL PLUG WHITE NEUTRAL IGNITER FLAME ROD ASSEMBLY PRESSURE SWITCH NC PRESSURE SWITCH NO CAPACITOR BLACK LINE GREEN GND YELLOW GREEN BLUE BLUE BLUE BLUE BROWN BROWN WHITE YELL...

Страница 14: ...peration of the water heater 3 Avoid locations that could cause the water heater to freeze from outside air 4 Selected location must provide access to a properly grounded electrical branch circuit A dedicated circuit is preferred Do not use a GFI outlet 5 Avoid locations that expose the water heater to direct sunlight 6 Keep combustibles such as boxes magazines clothes etc away from the water heat...

Страница 15: ...For Servicing When installing the heater consideration must be given to proper location Location selected should be as close to the wall as practicable and as centralized with the water piping system as possible Servicing this appliance such as changing the anodes etc requires clearances for accessibility and replacement of parts The anode could be as long as 35 Refer to the current edition of the...

Страница 16: ...s allowed to collect and freeze Pooling of condensate can restrict airflow and can cause nuisance failures of the system INSULATION BLANKETS Insulation blankets are available to the general public for external use on gas water heaters but are not necessary with these products The purpose of an insulation blanket is to reduce standby heat loss encountered with storage tank heaters Your water heater...

Страница 17: ...ation of valves Before changing the factory setting on thermostat read Operating The Temperature Control System section in this manual This water heater should not be connected to any heating systems or components previously used with a non potable water heating appliance All piping components connected to this unit for space heating applications should be suitable for use with potable water Toxic...

Страница 18: ...e cold water line an expansion tank of adequate size must be installed 8 Combo Heating Systems require higher water temperatures than other applications When the system is used to supply water for Combo Heating applications a means such as mixing valve must be installed to temper the water in order to reduce scald hazard potential see Figure 14 and Figure 15 Installation The heating mode may be on...

Страница 19: ...pansion tank should be installed on all closed systems to control the harmful effects of thermal expansion Contact a plumbing service agency or your retail supplier regarding the installation of a thermal expansion tank Note To protect against untimely corrosion of hot and cold water fittings it is recommended that di electric unions or couplings be installed on this water heater when connected to...

Страница 20: ...ces Excessive length over 30 or use of more than four elbows can cause restriction and reduce the discharge capacity of the valve No valve or other obstruction is to be placed between the T P valve and the tank Do not connect discharge piping directly to the drain unless a maximum of 6 air gap is provided To prevent bodily injury hazard to life or property damage the relief valve must be allowed t...

Страница 21: ...he hot water outlet and cold water inlet pipes to the water heater 4 Locate the slit running the length of a section of pipe insulation 5 Spread the slit open and slip the insulation over the cold water inlet pipe Apply gentle pressure along the length of the insulation to ensure it is fully seated around the pipe Also ensure the base of the insulation is flush with the water heater Once seated se...

Страница 22: ...nd wipe dry Use joint compound or tape compatible with natural gas and propane Leak test before operating heater Disconnect gas piping and shut off valve before pressure testing system Fire and Explosion Hazard WARNING Use pipe joint compound or Teflon tape marked as being resistant to the action of gases The appliance and its gas connection must be leak tested before placing the appliance in oper...

Страница 23: ...r unless it is completely full of water To prevent damage to the tank the tank must be filled with water Water must flow from the hot water faucet before turning ON gas to the water heater To fill the water heater with water 1 Close the water heater drain valve by turning handle to the right clockwise The drain valve is on the lower front of water heater see Figure 20 2 If the heater is equipped w...

Страница 24: ...ation of the vent pipe system is mandatory for the safe and efficient operation of this water heater and is an important factor in the life of the unit VENT KIT A Vent Kit included with this water heater may be used for standard sidewall or roof termination It consists of 1 Blower outlet adapter rubber coupling and gear clamps 2 Two 2 45 Vent Termination Elbows 3 Restrictive Vent Screens see Figur...

Страница 25: ...lding or the combustion air inlet to any other appliance 6 in for appliances 10 000 BTUh 3 kW 9 in for appliances 10 000 BTUh 3 kW and 50 000 BTUh 15 kW 12 in for appliances 50 000 BTUh 15 kW C to window or door that is permanently closed 0 in K to a mechanical air supply inlet 3 ft above if within 10 ft horizontally D to soffit 12 in L above equipment or public walkways F to outside corner 24 in ...

Страница 26: ...e horizontal centerline of the air intake terminal may not be located more than 24 below the horizontal centerline of the exhaust vent terminal 4 To avoid exhaust recirculation the air intake terminal may be rotated away from the exhaust vent terminal see Figure 22 EXHAUST VENT TERMINAL INTAKE VENT TERMINAL 24 MAX 8 MIN C L C L C L C L SIDE WALL Figure 22 ROOF VENT TERMINATION STANDARD Important W...

Страница 27: ...ns may be 90 elbows if specified by local requirements Note The vertical centerline of the air intake termination and the vertical centerline of the exhaust vent termination must not be closer than 8 Important Elbows excluding the termination elbow and risers must be considered when calculating total equivalent vent length see Table 5 WALL MOUNTED SUPPORT BRACKET 8 MIN 24 MAX INTAKE TERMINAL EXHAU...

Страница 28: ...ent termination It might be necessary to trim the vent to suit the height of the new water heater For the purpose of these installations the calculations for equivalent length will refer to the distance from the blower assembly on the water heater to the inside of the wall at the Deluxe Vent Termination Pyramid Vent Terminal PYRAMID VENT TERMINAL Figure 25 Mushroom Vent Terminal MUSHROOM VENT TERM...

Страница 29: ...100304509_2000545232_Rev 01 www statewaterheaters com 29 3 VENT PIPING INTAKE 3 VENT PIPING EXHAUST O RING SCREW VENT PIPING Figure 28 ...

Страница 30: ...ters and distance between hole centers can be found in Table 2 2 Slide both the intake and exhaust pipes through the holes Solvent cement both pipes to the base of the vent termination kit follow the solvent cementing procedures outlined in the System 636 Installation Guide 3 To fasten the Base to the wall use the supplied screws and anchors A 3 16 hole 1 3 16 deep will need to be drilled for the ...

Страница 31: ...on kit in a vertical roof installation Ensure the combustion air intake location is above the anticipated snow level VENT DIA P N 2 100112869 3 100111100 Table 3 STRAP FIELD SUPPLIED COMBUSTION AIR COMBUSTION AIR ORIENTATION OF EXHAUST PIPING AND COMBUSTION AIR PIPING RELATIVE TO EACH OTHER MAY BE VERTICAL AS SHOWN OR AT ANY OTHER ANGLE TO SUIT THE INSTALLATION ELBOW FIELD SUPPLIED SLOPE 1 4 OVER ...

Страница 32: ...s circulation see Figure 35 When more than 2 kits are installed only 2 of them shall be less than 9 5 apart Never install 3 termination kits together less than 9 5 apart see Figure 36 9 5 MAX OR 43 5 MIN WALL VENT SCREEN NOTE IF A TERMINATION ELBOW IS REQUIRED BY LOCAL CODES INSTALL VENT SCREEN IN ELBOW INSTEAD OF CONCENTRIC VENT EXHAUST Figure 35 43 5 MIN 9 5 MAX WALL NOTE IF A TERMINATION ELBOW ...

Страница 33: ...tions over 20 a debris vent screen must be used see Figure 41 12 MIN APPLY SEALANT TO BOTH SIDES OF WALL VENT SCREEN INSTALL IN TERMINATIONS OR 12 ABOVE ANTICIPATED SNOW LEVEL TEE FITTING EXHAUST TERMINATION 90 ELBOW AIR INTAKE TERMINATION VENT SCREEN INSTALL IN TERMINATION 8 MIN Figure 37 24 MAX APPLY SEALANT TO BOTH SIDES OF WALL VENT SCREEN INSTALL IN TERMINATION OR 12 ABOVE ANTICIPATED SNOW LE...

Страница 34: ...Optional wall plates that fit the polypropylene venting are also available through your supplier 1 Carefully inspect the entire venting system for any signs of cracks or fractures particularly at joints between elbows and other fittings and straight runs of vent pipe 2 Check system for signs of sagging or other stresses in joints as a result of misalignment of any components in the system If any o...

Страница 35: ...tion 45 elbow to direct the vent pipe downward unless otherwise specified by local requirements 3 If additional elbows are used in the vent system the allowable vent lengths are reduced 4 Two 45 elbows are considered the equivalent of one 90 elbow Table 6 WATER HEATER MODEL HEATER INPUT BTU HR VENT SIZE INSIDE DIAM PRESSURE SWITCH SETTINGS in W C LOW PROFILE EQUIV VENT LENGTH PYRAMID EQUIV VENT LE...

Страница 36: ...tion or next to the blower In freezing weather it is recommended to locate the restrictive screens next to the blower to reduce the potential for frost buildup on the intake screen Install the appropriate restrictive vent screen into the vent system Install the debris vent screen in both the air intake pipe and the exhaust pipe The debris screens are to be installed at the termination to keep fore...

Страница 37: ... air intake vent system is located at the blower this joint should not be cemented but secured with a screw to allow servicing see Figure 47 through Figure 49 Vent Pipe Runs 1 The exhaust vent system must not under any circumstances be run downhill then run uphill thus forming a valley It may leave a space to accumulate condensation and block vent pipe 2 Horizontal runs require a minimum 1 8 rise ...

Страница 38: ...ature characteristics etc Insertion Tool Helpful for larger diameter pipe and fittings 6 and above Read instruction manual before installing using or servicing water heater Do not store or use gasoline or other flammable vapors and liquids in the vicinity of this or any other appliance Avoid all ignition sources if you smell gas Do not expose water heater control to excessive gas pressure Use only...

Страница 39: ...tom of the fitting socket When this happens a sufficient quantity of cement must be applied to the joint to fill the gap between the pipe and fitting The gap must be filled to obtain a strong leak free joint D Inspection cleaning priming Visually inspect the inside of the pipe and fitting sockets and remove all dirt grease or moisture with a clean dry rag If wiping fails to clean the surfaces a ch...

Страница 40: ...ng see Figure 47 through Figure 49 5 This water heater is a polarity sensitive appliance and will not operate if the power supply polarity is reversed Power to this water heater must be wired properly correct polarity 6 Do not plug in power cord until the vent system is completely installed The heater operates on 110 120 VAC A grounded outlet must be within reach of the 6 foot flexible power cord ...

Страница 41: ... the vent piping is firmly secured in the coupling and is gas tight Do not over tighten or cause distortion of any of the parts Ensure the bottom of the rubber coupling is firmly seated on the blower outlet and that the lower gear clamp is also secure Check to ensure there is no distortion or movement of the clamped assembly once it is completed Do not overtighten the top and bottom gear clamps of...

Страница 42: ...water at least halfway prior to operating the heater Ensure the end of the tube has access to a drain as condensate will flow from the end Secure the tubing to the side of the heater Caution must be used to ensure that drain is free and clear of debris and will not allow backflow through the condensate drain line Care should be taken to ensure there is no kink or twist in the condensate hose Conde...

Страница 43: ...ings of approved material Acceptable size length and number of elbows on exhaust vent system Installed in accordance with prevailing provisions of local codes or in the absence of such the latest edition of National Fuel Gas Code ANSI Z223 1 NFPA 54 Horizontal piping slopes at an upward pitch of 1 8 rise per 5 away from the water heater Not obstructed in any way Means installed to collect neutrali...

Страница 44: ...e switch on the control to the OFF position 5 Do not attempt to light manually 6 Wait five 5 minutes to clear out any gas If you then smell gas STOP Follow B in the safety information above on this label If you don t smell gas go the next step 7 Turn on all electric power to the appliance 8 Set the switch on the control to the ON position 9 Turn thermostat to desired setting DANGER Hotter water in...

Страница 45: ...the infirm or physically mentally handicapped If anyone using hot water fits into one of these groups or if there is a local code or state law requiring certain temperature water at the hot water tap then you must take special precautions In addition to using lowest possible temperature setting that satisfies your hot water needs a means such as a mixing valve should be used at hot water taps used...

Страница 46: ...Less than 5 seconds A 130 More than 30 seconds HOT 120 More than 5 minutes LOW 110 Normal shower temp VAC 70 N A Table 9 Note The temperatures indicated are approximate The actual temperature of the heated water may vary The Vacation Setting VAC sets the controller at approximately 70 F This setting is recommended when the water heater is not in use for a long period of time This effectively turns...

Страница 47: ...eriods and should be considered normal OPERATIONAL CONDITIONS Smelly Water Each water heater contains at least one anode rod for corrosion protection of the tank Certain water conditions will cause a reaction between this rod and the water The most common complaint associated with the anode rod is one of a rotten egg smell in the hot water The smell is a result of four factors which must all be pr...

Страница 48: ...ion which could cause improper venting or leakage of combustion products Be sure the vent piping is properly connected to prevent escape of dangerous flue gases which could cause deadly asphyxiation Obstructions and deteriorated vent systems may present serious health risk or asphyxiation Chemical vapor corrosion of the flue and vent system may occur if air for combustion contains certain chemical...

Страница 49: ...ne and 2 that water discharge will not cause any property damage as water may be extremely hot Use care when operating valve as the valve may be hot To check the relief valve lift lever at the end of valve several times see Figure 54 The valve should seat properly and operate freely If after manually operating the valve it fails to completely reset and continues to release water immediately close ...

Страница 50: ...ucet to help the water in the tank drain faster 8 If a large amount of sediment was present when the tank was drained follow instructions in the To Flush The Water Heater Storage Tank section 9 Close the water heater drain valve when all water in the storage tank has drained and remove the hose 10 Follow instructions in the Filling The Water Heater section 11 Follow the lighting instructions on th...

Страница 51: ...gen sulfide gas dissolved in the water The removal of the anode rod requires a 1 1 16 socket Important Do not operate the water heater without a functioning anode rod as this will void any warranties A special anode rod may be available if water odor or discoloration occurs Note This rod may reduce but not eliminate water odor problems The water supply system may require special filtration equipme...

Страница 52: ...n or high water pressure in your area E The temperature pressure relief valve may be leaking at the tank fitting F Water from a drain valve may be due to the valve being slightly opened G The drain valve may be leaking at the tank fitting H Combustion products contain water vapor which can condense on the cooler surfaces of the tank Droplets form and drip onto the burner This is common at the time...

Страница 53: ...r Inlet Snorkel 31 Air Duct 33 Flame Sensor Rod see Figure 3 Figure 4 see also Figure 60 Figure 61 34 Sheet Metal Burner see Figure 3 Figure 4 see also Figure 60 Figure 61 35 Gas Orifice see Figure 3 Figure 4 see also Figure 60 Figure 61 36 Gas Manifold see Figure 3 Figure 4 see also Figure 60 Figure 61 37 Hot Surface Igniter see Figure 3 Figure 4 see also Figure 60 Figure 61 38 Manifold Door Gask...

Страница 54: ...44 Shown with Junction Box Cover removed for clarity 43 46 27 45 Figure 62 Notes Items not supplied with the water heater The side recirculation loop connections may not be used as the primary water inlet and outlet connections See Combo Heating Inlet And Outlet Side Taps Caution harness has 120 VAC during operation See Vent Pipe Installation for more information The orifice on Natural gas models ...

Страница 55: ...F switch to the OFF position Wait for 10 seconds and move the switch back to the ON position If the problem that caused the control to lock out has not been corrected the control will remain or again go back into lockout IGNITION STATE AND TIMING IGNITION STATE TIMING Pre purge 5 seconds NG models 15 seconds LP models Hot Surface Igniter HSI Warmup 10 seconds Ignition Activation Period IAP 3 5 sec...

Страница 56: ...uence 7 Six One Flash three second pause Soft Lockout Retry Limit Failed Trial For Ignition 8 Six Two Flash three second pause Soft Lockout Recycle Limit Pressure Switch High Limit opened 9 Six Three Flash three second pause Soft Lockout Recycle Limit Flame Lost 10 Six Four Flash three second pause Soft Lockout Flame out of Sequence Sensed 11 Seven Flash three second pause N A Flammable Vapour Sen...

Страница 57: ...bly 2 Ensure the air pressure sensing tubes are properly connected and not kinked or damaged 3 Check continuity of the vent temperature limit switch replace switch if contact remain open 4 Check continuity of the air pressure switch N C replace switch if contact remain open 5 Ensure the correct size of exhaust and air intake pipes were used per the instruction manual for vent length Ensure maximum...

Страница 58: ...ust and air intake pipes 7 If there are excessive restrictions in the air intake pipe the air pressure switch N C will open 8 Check air pressure switch performance Check blower vacuum with a manometer Compare with air pressure switch N O setting If the air pressure switch proves defective replace the air pressure switch N O 9 If the air pressure switch N O performance test results prove the air pr...

Страница 59: ...king Failure to install the proper vent screens 2 Closed water system 3 Pressure build up 4 Improperly seated valve 1 Ensure the correct size of exhaust and air intake pipes were used per the instruction manual for vent length Ensure the proper vent screens were used 2 See thermal expansion section 3 Use a pressure reducing valve and relief valve 4 Check Relief valve for proper operation Do Not pl...

Страница 60: ...500 Tennessee Waltz Parkway Ashland City TN 37015 Phone 800 821 2017 Fax 800 644 9306 www statewaterheaters com ...

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