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Chemical Hazard

• Product contains phosphoric acid.
• Keep out of reach of children.
• Use rubber or neoprene gloves.

UN•lIMe contains phosphoric acid. In case of external contact, 

flush with cool water. If irritation persists, get medical attention. If 

swallowed, give 1 or 2 glasses of water or milk and call physician.
Get immediate medical attention for eyes. Keep out of reach of 

children.

note: the use of ruBBer or neoprene gloVes is 

reCommended, espeCially if you haVe any open 

sores or Cuts to aVoid unneCessary irritation 

or disComfort.

1.  Turn  off  fuel  and/or  power  supply  to  heater. Also,  turn  off 

power  to  any  electrical  device  or  equipment,  which  is 

attached, or part of the system.

2.  Open hot water side of faucet closest to heater and allow 

water to run until it is cool enough to handle safely.

3.  Close cold water inlet valve to heater.
4.  Connect hose to drain valve at bottom of heater and start 

draining heater into suitable floor drain area.

5.  remove relief valve while heater is draining. NOTe: Do not 

replace relief valve until deliming is completed. relief valve 

opening will also act as a vent in case of possible contact 

between  the  delimer  and  the  anode  rod(s),  which  may 

produce flammable hydrogen-air mixtures.

6.  If relief valve appears to be limed-up, place it in a clean glass or 

plastic container adequate in size so that you can pour enough 

UN•lIMe®  into  the  container  to  cover  the  valve  and  allow 

space for foaming. When foaming stops, run fresh cool water 

into the container and rinse the relief valve for a few minutes.

7.  If heater does not drain completely after a reasonable length 

of time, turn off the main water supply valve to stop water 

from entering the tank due to a by-pass problem or defective 

cold water inlet valve. Also, check for clogged drain valve 

opening.  Heater  must  be  completely  drained  before 

introducing UN•lIMe.

8.  remove the cleanout cover and place a clean plastic bucket 

next to the cleanout opening.
Partially  open  the  cold  water  inlet  valve  to  allow  time  to 

accomplish the following and then close the valve.
While the water is being run through the tank, insert a stiff 

wire, copper tube flattened at one end or an opened wire coat 

hanger  through  the  cleanout  opening  and  scrape  out  any 

loose deposits of scale or sediment. This is an economical 

way to avoid unnecessary usage of the deliming solution.
repeat the opening and closing of the cold water inlet valve 

as necessary but be sure the heater is completely drained 

when ready to introduce the UN•lIMe.
Upon completion, reinstall the cleanout cover and use a new 

cleanout cover gasket (part number 9004099215).
remove the drain valve.

NOTe: Un•lime is not available for use in Canada.
Hydrochloric base acids are not recommended for use on glass 

lined tanks.
Observe handling instructions on label of product being used. 

tank Cleanout proCedure

The following practices will ensure longer life and enable the unit 

to operate at its designed efficiency:
1.  Once a month the heater should be flushed. Open the drain 

valve and allow two gallons of water to drain from the heater. 

Inlet water valve should remain open to maintain pressure 

in tank.

2.  A  cleanout  opening  is  provided  for  periodic  cleaning  of 

the tank. Gas must be shut off and heater drained before 

opening cleanout.

To clean heater through cleanout opening, proceed as follows:
3.  Drain heater.
4.  remove outer cover plate from lower side of heater jacket.
5.  remove  six  (6)  hex  head  screws  securing  tank  cleanout 

plate and remove plate.

6.  remove lime, scale, or sediment using care not to damage 

the glass lining.

7.  Inspect  cleanout  plate  gasket,  if  new  gasket  is  required, 

replace with part no. 9004099215.

8.  Install  cleanout  plate.  be  sure  to  draw  plate  up  tight  by 

tightening screws securely.

9.  replace outer jacket cover plate. 
In  some  water  areas  the  sediment  might  not  be  removed 

by  this  method  and  may  result  in  the  water  heater  making 

rumbling or boiling noises. To dissolve and remove these more 

stubborn  mineral  deposits,  UN•lIMe  Professional  Delimer 

should be used.

deliming using flo-jug method

UN•lIMe  in  the  5  gallon  size  is  recommended  for  deliming  of 

all models. Contact your local dealer, distributor or water heater 

manufacturer.
Prepare the Water Heater

To  delime  the  water  heater  using  the  Flo-Jug  method,  first 

prepare the heater for deliming.

Explosion Hazard

Flammable hydrogen gases

may be present.

Keep all ignition sources away

from faucet when turning on

hot water.

Do not smoke or have open flame or sparks in vicinity of heater. 

Do not mix UN•lIMe with other chemicals. Do not allow contact 

with magnesium, aluminum or galvanized metals.

Summary of Contents for SBL81120NE

Page 1: ...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 Immed...

Page 2: ...ion 32 Start Up Conditions 32 Operational Conditions 32 Troubleshooting 33 Water Piping Diagrams 34 Notes 50 Limited Warranty 51 Table Of Contents Safe Installation Use and Service 3 APPROVALS 3 Gener...

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

Page 4: ...ion 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 t...

Page 5: ...ter system If hydrogen is present there will probably be an unusual sound such as air escaping through the pipe as the water begins to flow There should be no smoking or open flame near the faucet at...

Page 6: ...his manual first and then the entire manual carefully If you don t follow the safety rules the water heater will not operate properly It could cause DEATH SERIOUS BODILY INJURY AND OR PROPERTY DAMAGE...

Page 7: ...water heater cannot be restarted unless the water temperature is reduced to approximately 120 F 49 C The high limit reset button on the front of the control then needs to be depressed Continued manual...

Page 8: ...61 67 70 72 78 SBL81120NE 120 81 82 GPH 331 298 239 221 199 170 166 149 133 119 110 108 99 95 92 85 35 307 LPH 1254 1129 903 836 752 645 627 564 502 451 418 410 376 358 347 322 SBL81154NE 154 81 82 GP...

Page 9: ...eiling must be a continuous run no joints and retain 6 15 2 cm clearance unless an approved reducing thimble is used A service clearance of at least 24 61 cm should be maintained from serviceable part...

Page 10: ...n labels from the manufacturer for placement on the blanket directly over the existing labels DO inspect the insulation blanket frequently to make certain it does not sag thereby obstructing combustio...

Page 11: ...MP WIRING DIAGRAM STORAGE TANK OR BUILDING RECIRCULATION FIELD SUPPLIED TEMPERATURE CONTROL INSTALLED IN THE STORAGE TANK OR CIRCULATING LOOP RETURN LINE CIRC PUMP MOTOR L1 HOT L2 NEUTRAL 120 VAC POWE...

Page 12: ...tic pressure and with all gas burning equipment running at maximum rate dynamic pressure The gas supply pressure must be stable within 1 5 W C 0 37 kPa from static to dynamic pressure to provide good...

Page 13: ...ge 20 and Water Piping Diagrams on page 34 Temperature Pressure Relief Valve Explosion Hazard Temperature Pressure Relief Valve must comply with ANSI Z21 22 CSA 4 4 and ASME code Properly sized temper...

Page 14: ...not intended for the constant relief of thermal expansion A properly sized thermal expansion tank must be installed on all closed systems to control thermal expansion see Closed Water Systems and Ther...

Page 15: ...tand instruction manual For safe operation an adequate supply of fresh uncontaminated air for combustion and ventilation must be provided An insufficient supply of air can cause recirculation of combu...

Page 16: ...Figure 15 Alternatively a single permanent opening commencing within 12 inches 300 mm of the top of the enclosure shall be provided See Figure 14 The water heater shall have clearances of at least 1 i...

Page 17: ...aggregate input rating of all appliances installed in the enclosure Each opening shall not be less than 100 square inches 645 cm2 Outdoor Air Through Two Vertical Ducts The illustrations shown in thi...

Page 18: ...nector size 6 inches 6 8 10 15 20 30 50 100 Input Btu hr Rise Vent Connector Diameter Inches 154 000 1 ft 6 6 6 6 6 6 6 6 154 000 2 ft 6 6 6 6 6 6 6 6 154 000 3 ft 6 6 6 6 6 6 6 6 Number of 154 Heater...

Page 19: ...15 20 30 50 100 Input Btu hr Rise Vent Connector Diameter Inches 250 000 1 ft 8 8 7 7 7 6 6 6 250 000 2 ft 7 7 7 7 6 6 6 6 250 000 3 ft 7 7 7 7 6 6 6 6 Number of 250 Heaters Combined Input in Thousand...

Page 20: ...installation of the water piping begins 1 Water Temperature Control and Mixing Valves on page 12 2 Dishwashing Machines on page 13 3 Temperature Pressure Relief Valve on page 13 4 Closed Systems and T...

Page 21: ...ing heat to this fitting Do not allow pipe dope to contact the plastic tube during installation Tube Inlet Installation Figure 19 TEMPERATURE SETTING SHOULD NOT EXCEED SAFE USE TEMPERATURE AT FIXTURES...

Page 22: ...n to properly wire the hot and neutral connections IF ANY OF THE ORIGINAL WIRE AS SUPPLIED MUST BE REPLACED USE ONLY 18 AWG 105 C 600V UL AWM STYLE 1015 WIRE EXCEPT GAS VALVE CABLE WHICH MUST USE 2 CO...

Page 23: ...attaching the gas line be sure that all gas pipe is clean on the inside To trap any dirt or foreign material in the gas supply line a sediment trap must be incorporated in the piping see Figure 21 Th...

Page 24: ...s away from faucets after extended periods of non use 1 Close the Main Gas Shutoff Valve see Figure 21 on page 23 2 Purge all air from the supply gas line up to the water heater s Main Gas Shutoff Val...

Page 25: ...gas regulator as necessary Adjust the supply gas regulator s per the regulator manufacturer s instructions to achieve the required static and dynamic supply gas pressure Multiple Water Heater Installa...

Page 26: ...the desired setting 9 If the appliance will not operate follow the instructions TO TURN OFF GAS TO APPLIANCE and call your technician or gas supplier Wait five 5 minutes to clear out any gas If you th...

Page 27: ...to determine if Burner is lit Does Burner light Ignition Control changes Blower from low speed to high speed after 5 seconds Ignition Control monitors flame signal Thermostat is satisfied Blower off B...

Page 28: ...y thermal expansion in a closed system See Closed Water Systems and Thermal Expansion on page 13 The Temperature Pressure Relief Valve is not intended for the constant relief of thermal expansion Temp...

Page 29: ...hismanual 11 Turn on the electrical supply to place the water heater back in operation 12 Turn on the gas supply to the water heater at the Main Gas Shutoff Valve 13 Allow the water heater to complete...

Page 30: ...ut opening and scrape out any loose deposits of scale or sediment This is an economical way to avoid unnecessary usage of the deliming solution Repeat the opening and closing of the cold water inlet v...

Page 31: ...t fitting into the drain valve opening of heater after applying Teflon tape or paste to threads Tighten firmly by hand and use wrench or adjustable pliers to check for secure connection Do not over ti...

Page 32: ...be restarted unless the water temperature is reduced to approximately 120 F 49 C The high limit reset button on the front of the thermostat then needs to be depressed See Figure 2 for the location of...

Page 33: ...blockage and or flue gas exhaust blockage Water temperature too hot Thermostat set too high Set thermostat to a lower setting Rumbling Sediment accumulation on bottom of tank Drain a quantity of water...

Page 34: ...should be set 5 degrees F higher than the Tank Temperature Control MULTI FLUE 1 UNIT WITH VERTICAL STORAGE TANK LEGEND TEMPERATURE PRESSURE RELIEF VALVE PRESSURE RELIEF VALVE CIRCULATING PUMP TANK TE...

Page 35: ...ostat should be set 5 degrees F higher than the Tank Temperature Control MULTI FLUE 1 UNIT WITH HORIZONTAL STORAGE TANK LEGEND TEMPERATURE PRESSURE RELIEF VALVE PRESSURE RELIEF VALVE CIRCULATING PUMP...

Page 36: ...and the storage tank s MULTI FLUE 1 UNIT WITH MIXING VALVE TWO TEMPERATURE LEGEND TEMPERATURE PRESSURE RELIEF VALVE PRESSURE RELIEF VALVE CIRCULATING PUMP TANK TEMPERATURE CONTROL DRAIN FULL PORT BAL...

Page 37: ...mp between the water heater s and the storage tank s MULTI FLUE 2 UNITS LEGEND TEMPERATURE PRESSURE RELIEF VALVE PRESSURE RELIEF VALVE CIRCULATING PUMP TANK TEMPERATURE CONTROL DRAIN FULL PORT BALL VA...

Page 38: ...tat should be set 5 degrees F higher than the Tank Temperature Control MULTI FLUE 2 UNITS WITH VERTICAL STORAGE TANK LEGEND TEMPERATURE PRESSURE RELIEF VALVE PRESSURE RELIEF VALVE CIRCULATING PUMP TAN...

Page 39: ...tat should be set 5 degrees F higher than the Tank Temperature Control MULTI FLUE 2 UNITS WITH VERTICAL STORAGE TANK LEGEND TEMPERATURE PRESSURE RELIEF VALVE PRESSURE RELIEF VALVE CIRCULATING PUMP TAN...

Page 40: ...t should be set 5 degrees F higher than the Tank Temperature Control MULTI FLUE 2 UNITS WITH HORIZONTAL STORAGE TANK LEGEND TEMPERATURE PRESSURE RELIEF VALVE PRESSURE RELIEF VALVE CIRCULATING PUMP TAN...

Page 41: ...EMPERATURE PRESSURE RELIEF VALVE PRESSURE RELIEF VALVE CIRCULATING PUMP TANK TEMPERATURE CONTROL DRAIN FULL PORT BALL VALVE TEMPERATURE GAGE WATER FLOW SWITCH CHECK VALVE WARNING THIS DRAWING SHOWS SU...

Page 42: ...VALVE CIRCULATING PUMP TANK TEMPERATURE CONTROL DRAIN FULL PORT BALL VALVE TEMPERATURE GAGE WATER FLOW SWITCH CHECK VALVE WARNING THIS DRAWING SHOWS SUGGESTED PIPING CONFIGURATION AND OTHER DEVICES C...

Page 43: ...LEGEND TEMPERATURE PRESSURE RELIEF VALVE PRESSURE RELIEF VALVE CIRCULATING PUMP TANK TEMPERATURE CONTROL DRAIN FULL PORT BALL VALVE TEMPERATURE GAGE WATER FLOW SWITCH CHECK VALVE WARNING THIS DRAWING...

Page 44: ...an the Tank Temperature Control MULTI FLUE 3 UNITS WITH VERTICAL STORAGE TANK LEGEND TEMPERATURE PRESSURE RELIEF VALVE PRESSURE RELIEF VALVE CIRCULATING PUMP TANK TEMPERATURE CONTROL DRAIN FULL PORT B...

Page 45: ...than the Tank Temperature Control MULTI FLUE 3 UNITS WITH HORIZONTAL STORAGE TANK LEGEND TEMPERATURE PRESSURE RELIEF VALVE PRESSURE RELIEF VALVE CIRCULATING PUMP TANK TEMPERATURE CONTROL DRAIN FULL PO...

Page 46: ...RE PRESSURE RELIEF VALVE PRESSURE RELIEF VALVE CIRCULATING PUMP TANK TEMPERATURE CONTROL DRAIN FULL PORT BALL VALVE TEMPERATURE GAGE WATER FLOW SWITCH CHECK VALVE WARNING THIS DRAWING SHOWS SUGGESTED...

Page 47: ...perature Control MULTI FLUE 4 UNITS WITH VERTICAL STORAGE TANK LEGEND TEMPERATURE PRESSURE RELIEF VALVE PRESSURE RELIEF VALVE CIRCULATING PUMP TANK TEMPERATURE CONTROL DRAIN FULL PORT BALL VALVE TEMPE...

Page 48: ...emperature Control MULTI FLUE 4 UNITS WITH HORIZONTAL STORAGE TANK LEGEND TEMPERATURE PRESSURE RELIEF VALVE PRESSURE RELIEF VALVE CIRCULATING PUMP TANK TEMPERATURE CONTROL DRAIN FULL PORT BALL VALVE T...

Page 49: ...49 Model Dimension A SBL 120 154 68 SBL 180 199 250 A 76...

Page 50: ...50 Notes...

Page 51: ...is also installed at the heater s and operational at all times The relief valve installed on the heater is not an acceptable method 4 SERVICE AND REPAIR EXPENSES Under the limited warranty the warrant...

Page 52: ...500 Tennessee Waltz Parkway Ashland City TN 37015 Tech Support 800 365 0024 Parts 800 821 2017 www statewaterheaters com Copyright 2012 State Water Heaters All rights reserved...

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