background image

20

CHECKING GAS INPUT

With this heater in operation, determine whether it is receiving the 

full rated input of gas. This may be done by timing the gas meter 

and measuring gas pressure with a gauge or manometer. When the 

heater is operating at full capacity (full gas input) it should consume 

approximately 1 cubic foot of gas in the time shown in Table 5.

TABLE 5. INPUT CHECK TIME REQUIRED 

TO CONSUME 1 CU. FT. OF GAS

Model

Type of Gas

BTU Per 

Cu. Ft.

Approx. Time Required To 

Consume 1 Cu. Ft. of Gas

CLN075075 

CLN075100

Natural

1050

50.3 sec.

Use  this  formula  to  “clock”  the  meter.    Be  sure  that  other  gas 

consuming appliances are not operating during this interval.

 

3,600

  X  H  =  Btu/Hr

 

   T

 

T  =  Time in seconds needed to burn one cubic foot of gas.

 

H  =  Heating value of gas in Btu’s per cubic foot of gas.

 

Btu/Hr  =  Actual heater input rate.

 Example:

 

T  =  50.3 seconds/ft

3

 

H  =  1,050 Btu/ft

3

 (natural gas)

 

Btu/Hr  =  ?

 

3,600

  X  1,050  =  75,100 Btu/Hr (22.0 kW)

 50.3

Compare the actual input rate to that given on the heater’s rating 

plate. In the example, the CLN075100’s full input rate should be 

75,100 Btu/Hr for natural gas.
Because  of  the  suddenness  and  amount  of  water,  condensation 

water may be diagnosed as a “tank leak”. After the water in the tank 

warms up (about 1-2 hours), the condition should disappear.
Do  not  assume  the  water  heater  is  leaking  until  there  has  been 

enough time for the water in the tank to warm up.
An undersized water heater will cause more condensation. The water 

heater must be sized properly to meet the family’s demands for hot 

water including dishwashers, washing machines and shower heads.
Excessive condensation may be noticed during the winter and early 

spring months when incoming water temperatures are at their lowest.
Good venting is essential for a gas fired water heater to operate properly 

as well as to carry away products of combustion and water vapor.

SMOKE/ODOR

It is not uncommon to experience a small amount of smoke and odor 

during the initial start-up. This is due to burning off of oil from metal 

parts, and will disappear in a short while.

STRANGE SOUNDS

Possible noises due to expansion and contraction of some metal 

parts during periods of heat-up and cool-down do not necessarily 

represent harmful or dangerous conditions.
Condensation causes sizzling and popping within the burner area 

during heating and cooling periods and should be considered normal.  

See “Condensation” in this section.

OPERATIONAL CONDITIONS

SMELLY WATER

In each water heater there is installed 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. This odor is derived from hydrogen sulfide gas dissolved 

in the water. The smell is the result of four factors which must all be 

present for the odor to develop:
a.  A concentration of sulfate in the supply water.
b.  Little or no dissolved oxygen in the water.
c.  A sulfate reducing bacteria which has accumulated within the 

water heater (this harmless bacteria is nontoxic to humans).

d.  An excess of active hydrogen in the tank.  This is caused by the 

corrosion protective action of the anode.

Smelly water may be eliminated or reduced in some water heater 

models by replacing the anode(s) with one of less active material, 

and then chlorinating the water heater tank and all hot water lines. 

Contact the local water heater supplier or service technician for 

further information concerning an Anode Replacement Kit and 

this chlorination treatment.

If the smelly water persists after the anode replacement and chlorination 

treatment, we can only suggest that chlorination or aeration of the water 

supply be considered to eliminate the water problem.

Do not remove the anode leaving the tank unprotected.  By doing 

so, all warranty on the water heater tank is voided.

“AIR” IN HOT WATER FAUCETS

HYDROGEN  GAS:  Hydrogen  gas  can  be  produced  in  a  hot 

water system that has not been used for a long period of time 

(generally  two  weeks  or  more).  Hydrogen  gas  is  extremely 

flammable  and  explosive.  To  prevent  the  possibility  of  injury 

under  these  conditions,  we  recommend  the  hot  water  faucet, 

located  farthest  away,  be  opened  for  several  minutes  before 

any electrical appliances which are connected to the hot water 

system are used (such as a dishwasher or washing machine). If 

hydrogen gas is present, there will probably be an unusual sound 

similar to air escaping through the pipe as the hot water faucet 

is opened. There must be no smoking or open flame near the 

faucet at the time it is open.

HIGH WATER TEMPERATURE SHUT OFF SYSTEM

This water heater is equipped with an automatic gas Shut-off 

system. This system works when high water temperatures are 

present. The high temperature Shut-off is built into the gas control 

valve. It automatically resets when the temperature at thermostat 

level drops below 120 degrees Fahrenheit.  

Содержание CLN 075100

Страница 1: ...erious injury This manual must remain with the water heater WARNING If the information in these instructions is not followed exactly a fire or explosion may result causing property damage personal inj...

Страница 2: ...Fresh Air Openings for Confined Spaces 13 Outdoor Air Through Two Openings 13 Outdoor Air Through One Opening 13 Outdoor Air Through Two Horizontal Ducts 14 Outdoor Air Through Two Vertical Ducts 14 A...

Страница 3: ...ornia 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 State of C...

Страница 4: ...4 GENERAL SAFETY INFORMATION...

Страница 5: ...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 This manual contains instructions for the installation op...

Страница 6: ...2 12 1 2 CM 157 6 147 3 74 9 64 1 40 3 10 2 38 7 40 6 5 1 NPT NPT 31 8 F 30 40 50 60 70 80 90 100 110 120 130 140 GPH 246 184 147 123 105 92 82 74 67 61 57 53 C 17 22 28 33 39 44 50 56 61 67 72 78 LPH...

Страница 7: ...vicing and proper operation of the water heater Installation of water heater must be accomplished in such a manner that if the tank or any connections should leak flow will not cause damage to the str...

Страница 8: ...proper and inefficient operation of the water heater producing carbon monoxide gas in excess of the safe limits This could result in serious injury or death Contact your local gas supplier for any spe...

Страница 9: ...rtain it does not sag thereby obstructing the combustion air flow HARD WATER Where hard water conditions exist water softening or the threshold type of water treatment is recommended This will protect...

Страница 10: ...to manufacturer s specifications If a positive lock up regulator is required follow these instructions 1 Positive lock up gas pressure regulators must be rated at or above the input Btu hr rating of t...

Страница 11: ...s not intended for the constant relief of thermal expansion A properly sized thermal expansion tank must be installed on all closed systems to control the harmful effects of thermal expansion Contact...

Страница 12: ...ature Pressure Relief Valve discharge line and 2 the water manually discharged will not cause any bodily injury or property damage because the water may be extremely hot If after manually operating th...

Страница 13: ...eater and the risk of fire or explosion may result It can also create a risk of asphyxiation LOUVERS AND GRILLES Thefreeareasofthefreshairopeningsintheinstructionsthatfollowdonot takeintoaccountthepre...

Страница 14: ...e provided with two permanent vertical ducts one commencing within 12 inches 300 mm of the top and one commencing within 12 inches 300 mm of the bottom of the enclosure The vertical ducts shall commun...

Страница 15: ...er heater unless it is vented to the outdoors and has adequate air supply to avoid risks of improper operation explosion or asphyxiation Align the legs of the draft hood with the holes provided Insert...

Страница 16: ...IN INCHES MAXIMUM CAPACITY OF PIPE IN CUBIC FEET PER HOUR LENGTH IN FEET NOMINAL IRON PIPE SIZES INCHES INPUT IN THOUSANDS BTU HR 1 2 3 4 1 1 1 4 1 1 2 2 2 1 2 3 4 10 175 360 680 1400 2100 3960 6300 1...

Страница 17: ...allation shown in the Figures 15 and 16 Contaminants in the gas lines may cause improper operation of the gas control valve that may result in fire or explosion Before attaching the gas line be sure t...

Страница 18: ...ter several tries turn the gas control knob clockwise to OFF and call your service technician or gas supplier SEE FIGURE A DANGER Hotter water increases the risk of scald injury Consult the instructio...

Страница 19: ...r at the water heater Mixing valves are available at plumbing supply or hardware stores see Figure 6 Follow manufacturer s instructions for installation of the valves Before changing the factory setti...

Страница 20: ...rmal See Condensation in this section OPERATIONAL CONDITIONS SMELLY WATER In each water heater there is installed at least one anode rod for corrosion protection of the tank Certain water conditions w...

Страница 21: ...ll with a blue haze and small amounts of yellow or orange at the edges After several minutes of operation the burner screen may glow red You should check for sooting Soot is not normal and will impair...

Страница 22: ...of the hardness lime For this reason it is recommended that a regular schedule for deliming be maintained ANODE ROD INSPECTION Property Damage Hazard Avoid water heater damage Inspection and replaceme...

Страница 23: ...TANK 1 Turn off gas supply at the Main Gas Shutoff Valve if the water heater is going to be shut down for an extended period 2 Ensure the cold water inlet valve is open 3 Open a nearby hot water fauc...

Страница 24: ...an condense on the cooler surfaces of the tank Droplets form and drip onto the burner or run on the floor This is common at the time of start up after installation and when incoming water is cold I Wa...

Страница 25: ...Gas Control Replace Gas Control PILOT OUTAGE Dirty pilot burner Clean pilot assembly Thermocouple malfunction Replace pilot assembly and or thermocouple Defective Gas Control Replace Gas Control Ther...

Страница 26: ...ocal codes shall govern their usage 4 The Tank Temperature Control should be wired to and control the pump between the water heater s and the storage tank s 5 The water heater s operating thermostat s...

Страница 27: ...mostat should be set 5 degrees F higher than the Tank Temperature Control SINGLE FLUE 1 UNIT WITH VERTICAL STORAGE TANK LEGEND TEMPERATURE PRESSURE RELIEF VALVE PRESSURE RELIEF VALVE CIRCULATING PUMP...

Страница 28: ...ermostat should be set 5 degrees F higher than the Tank Temperature Control SINGLE FLUE 1 UNIT WITH HORIZONTAL STORAGE TANK LEGEND TEMPERATURE PRESSURE RELIEF VALVE PRESSURE RELIEF VALVE CIRCULATING P...

Страница 29: ...ired to and control the pump between the water heater s and the storage tank s 5 The water heater s operating thermostat should be set 5 degrees F higher than the Tank Temperature Control SINGLE FLUE...

Страница 30: ...rature Control should be wired to and control the pump between the water heater s and the storage tank s 5 The water heater s operating thermostat should be set 5 degrees F higher than the Tank Temper...

Страница 31: ...he pump between the water heater s and the storage tank s 5 The water heater s operating thermostat should be set 5 degrees F higher than the Tank Temperature Control SINGLE FLUE 2 UNITS TWO TEMPERATU...

Страница 32: ...32 NOTES...

Страница 33: ...33 NOTES...

Страница 34: ...34 NOTES...

Страница 35: ...ion 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 4 SERVICE AND REPAIR EXPENSES Under the...

Страница 36: ...36 300 Maddox Simpson Parkway Lebanon TN 37090 Phone 615 889 8900 Fax 615 547 1000 Technical Service email 2tech lochinvar com www Lochinvar com Copyright 2015 Lochinvar LLC All rights reserved...

Отзывы: