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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.

Содержание CLN 120080

Страница 1: ...her 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 Immediately call your gas supplier from a neighbor...

Страница 2: ...51 TABLE OF CONTENTS SAFE INSTALLATION USE AND SERVICE 3 APPROVALS 3 GENERAL SAFETY INFORMATION 4 Precautions 5 Grounding Instructions 5 Hydrogen Gas Flammable 5 INTRODUCTION 6 Abbreviations Used 6 Q...

Страница 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...

Страница 4: ...nce 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 service technician for...

Страница 5: ...ot water 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 FAUCE...

Страница 6: ...ything on the first few pages RE AD THE ENTIRE MANUAL BE FORE ATTEMPTING TO INSTALL OR OPERATE THE WATER HEATER 2 The installation must conform with these instructions and the local code authority hav...

Страница 7: ...of high limit switch operation the 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 ne...

Страница 8: ...307 LPH 1818 1636 1309 1212 1091 935 909 818 727 654 606 595 545 519 503 467 CLN199080 199 81 80 GPH 531 478 382 354 319 273 265 239 212 191 177 174 159 152 147 137 58 307 LPH 2009 1808 1447 1340 120...

Страница 9: ...he panel must be strong enough to carry the weight of the heater when full of water A service clearance of at least 24 61 cm should be maintained from serviceable parts TABLE 4 MINIMUM CLEARANCES TO C...

Страница 10: ...instruction 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...

Страница 11: ...me circulating pumps are manufactured with sealed bearings and do not require further lubrication Some circulating pumps must be periodically oiled Refer to the pump manufacturer s instructions for lu...

Страница 12: ...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 performance Press...

Страница 13: ...1 and Water Piping Diagrams starting on page 35 TEMPERATURE PRESSURE RELIEF VALVE Explosion Hazard Temperature Pressure Relief Valve must comply with ANSI Z21 22 CSA 4 4 and ASME code Properly sized t...

Страница 14: ...ve is 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 an...

Страница 15: ...ening required to provide the free area specified Where the louver and grille design and free area are not known it shall be assumed that wood louvers will have 25 free area and metal louvers and gril...

Страница 16: ...hes 300 mm of the top of the enclosure shall be provided See Figure 14 The water heater shall have clearances of at least 1 inch 25 mm from the sides and back and 6 inches l50 mm from the front of the...

Страница 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...

Страница 18: ...Fuel Gas Code ANSI Z223 1 and with the Category I Venting Tables If any part of the vent system is exposed to ambient temperatures below 40 F 4 4 C it must be insulated to prevent condensation Do not...

Страница 19: ...sands of Btu hr Manifold and Common Vent Diameter Inches 2 308 000 7 7 6 6 6 6 6 6 3 462 000 8 8 7 7 7 6 6 6 4 616 000 9 9 9 8 8 7 7 6 Model CLN180080 THRU 199100 Input 180 000 and 199 000 Btu hr Tota...

Страница 20: ...8 8 7 7 7 6 6 Number of Heaters Combined Input Btu hr 2 620 000 12 10 10 9 9 8 8 7 3 930 000 14 14 12 12 10 10 9 9 4 1 240 000 16 14 14 14 12 12 10 9 Model CLN366085 Input 366 000 btu hr Total Vent He...

Страница 21: ...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...

Страница 22: ...inlet water connection requires an inlet dip tube refer to figure 19 The tube is supplied in the heater Follow caution labels if applying heat to this fitting Do not allow pipe dope to contact the pla...

Страница 23: ...sing In this case 200 C rated wire must be used The controls of this water heater are polarity sensitive Be certain to properly wire the hot and neutral connections 24V 24V GND GND PV MV PV MV SPARK 4...

Страница 24: ...e Before 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 Figu...

Страница 25: ...from faucets after extended periods of non use 1 Close the Main Gas Shutoff Valve see Figure 21 on page 24 2 Purge all air from the supply gas line up to the water heater s Main Gas Shutoff Valve 3 W...

Страница 26: ...pply 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 Ins...

Страница 27: ...n off the 24vac power to the blower relay and the Ignition Control and the unit will be in standby mode until another call for heat is initiated by the thermostat See the flow chart on page 28 for mor...

Страница 28: ...NO Blower power relay is energized to start blower Igni onControlprovidespowertoSpark IgniterandPilotGasValveandmonitors FlameSensortodetermineifBurnerislit 24VAC power to the Igni on Control and self...

Страница 29: ...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 Temper...

Страница 30: ...this manual 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 compl...

Страница 31: ...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...

Страница 32: ...plying Teflon tape or paste to threads Tighten firmly by hand and use wrench or adjustable pliers to check for secure connection Do not over tighten to avoid damage to threads and fittings Prepare the...

Страница 33: ...ot 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...

Страница 34: ...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...

Страница 35: ...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...

Страница 36: ...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...

Страница 37: ...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...

Страница 38: ...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...

Страница 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...

Страница 40: ...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...

Страница 41: ...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...

Страница 42: ...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...

Страница 43: ...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...

Страница 44: ...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...

Страница 45: ...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...

Страница 46: ...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...

Страница 47: ...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...

Страница 48: ...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...

Страница 49: ...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...

Страница 50: ...NOTES 50...

Страница 51: ...51 NOTES...

Страница 52: ...300 Maddox Simpson Parkway Lebanon TN 37090 Phone 615 889 8900 Fax 615 547 1000 Technical Service email 2tech lochinvar com www Lochinvar com Copyright 2014 Lochinvar LLC All rights reserved...

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