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Low Lead Content
WARNING: If the information in these
instructions is not followed exactly, a fire
or explosion may result causing property
damage, personal injury or death.
Do not store or use gasoline or other
flammable 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 not touch any electrical switch; do
not use any phone in your building.
•
Immediately call your gas supplier
from a neighbor's phone. Follow the
gas supplier's instructions.
•
If you cannot reach your gas supplier,
call the fire department.
Installation and service must be
performed by a qualified installer,
service agency or the gas supplier.
PLACE THESE INSTRUCTIONS ADJACENT TO HEATER AND NOTIFY OWNER TO KEEP FOR FUTURE REFERENCE.
KEEP THIS MANUAL IN THE POCKET ON HEATER FOR FUTURE REFERENCE
PRINTED 0517
RESIDENTIAL GAS WATER HEATERS
WHENEVER MAINTENANCE ADJUSTMENT OR SERVICE IS REQUIRED.
Instruction Manual
NOT FOR USE IN MANUFACTURED (MOBILE) HOMES
•
For Your Safety
AN ODORANT IS ADDED TO THE GAS USED
BY THIS WATER HEATER.
100286991_2000538798_Rev C
1
INSTALLATION - OPERATION
- SERVICE - MAINTENANCE
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.
•
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Table of Contents
Related Manuals for Lochinvar LTN07575
Summary of Contents for Lochinvar LTN07575
- Page 1 Instruction Manual RESIDENTIAL GAS WATER HEATERS NOT FOR USE IN MANUFACTURED (MOBILE) HOMES INSTALLATION - OPERATION - SERVICE - MAINTENANCE Low Lead Content WARNING: If the information in these instructions is not followed exactly, a fire or explosion may result causing property damage, personal injury or death.
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Page 2: Table Of Contents
TABLE OF CONTENTS SAFE INSTALLATION, USE AND SERVICE....3 Outdoor Air Through Two Vertical Ducts ....18 Air From Other Indoor Spaces ........18 APPROVALS ..............3 Venting ..............19 GENERAL SAFETY INFORMATION ......4 Gas Piping ..............21 INTRODUCTION ............5 Sediment Traps ............22 Abbreviations Used ........... -
Page 3: Safe Installation, Use And Service
SAFE INSTALLATION, USE AND SERVICE The proper installation, use and servicing of this water heater is extremely important to your safety and the safety of others. Many safety-related messages and instructions have been provided in this manual and on your own water heater to warn you and others of a potential injury hazard. -
Page 4: General Safety Information
GENERAL SAFETY INFORMATION PRECAUCIÓN Una instalación, uso o servicio técnico inadecuados pueden generar daños a la propiedad. • No haga funcionar el calentador de agua si alguna parte ha quedado expuesta a inundaciones o daños por el agua. • Inspeccione las varillas del ánodo de manera regular y reemplácelas si están gastadas de manera significativa. -
Page 5: Introduction
INTRODUCTION Thank You for purchasing this water heater. Properly PREPARING FOR THE INSTALLATION installed and maintained, it should give you years of 1. Read the “General Safety” section, page 4 of this trouble free service. manual first and then the entire manual carefully. If you ABBREVIATIONS USED don’t follow the safety rules, the water heater will not operate properly. -
Page 6: Typical Installation
TYPICAL INSTALLATION GET TO KNOW YOUR WATER HEATER - GAS MODELS A. Vent Pipe I. Ground Joint Union Q. Temperature-Pressure Relief Valve B. Draft Hood J. Sediment Trap R. Rating Plate C. Anode K. Inner Door S. Flue Baffle(s) D. Hot Water Outlet L. -
Page 7: Application/Use Of Water Heater
TYPICAL INSTALLATION FIGURE 2. MIXING VALVE USAGE APPLICATION/USE OF WATER HEATER HOTTER WATER CAN SCALD This Water Heater has been design certified as Water heaters are intended to produce hot water. complying with current edition for Water heated to a temperature which will satisfy space ANSI Z21.10.3-CSA 4.3 water heaters and is considered suitable for: heating, clothes washing, dish washing, and other... -
Page 8: Facts To Consider About The Location
TYPICAL INSTALLATION FACTS TO CONSIDER ABOUT THE LOCATION • Sensors mounted in the drain pan that trigger an alarm or turn off the incoming water to the water Carefully choose an indoor location for the new water heater when leakage is detected. heater, because the placement is a very important •... -
Page 9: High Altitude
The resulting flashback and fire can cause death or Water heaters covered in this manual have been tested serious burns to anyone in the area, as well as property and approved for installation at elevations up to 7,700 damage. If installation in such areas is your only option, feet (2,347 m) above sea level. -
Page 10: Clearances
CLEARANCES Minimum clearances between the water heater and combustible construction are 0 inch at the sides and rear, 4” (102 mm) at the front, and 6” (153 mm) from the vent pipe. Clearance from the top of the jacket is 12” (305 mm). -
Page 11: Insulation Blankets
If this water heater will be used in beauty shops, barber Should you choose to apply an insulation blanket to this shops, cleaning establishments, or self-service laundries heater, you should follow these instructions. See Leakage with dry cleaning equipment, it is imperative that the (page 31) for identification of components Test Points water heater or water heaters be installed so that... -
Page 12: Installation Requirements
INSTALLATION REQUIREMENTS GAS SUPPLY SYSTEMS GAS PRESSURE REQUIREMENTS Low pressure building gas supply systems are defined Natural gas models require a minimum gas supply as those systems that cannot under any circumstances pressure of 5.0” W.C. (1.24 kPa). Propane gas models exceed 14”... -
Page 13: Mixing Valves
WATER PIPING MIXING VALVES WATER (POTABLE) HEATING AND SPACE HEATING Water temperature over 125°F (52°C) can cause severe burns instantly This water heater shall not be connected to any heating resulting in severe injury or death. systems or component(s) used with a non-potable water Children, the elderly and the physically heating appliance. -
Page 14: Temperature-Pressure Relief Valve
TEMPERATURE-PRESSURE RELIEF VALVE This water heater is provided with a properly rated/ sized and certified combination temperature-pressure relief valve (T&P valve) by the manufacturer. The valve is certified by a nationally recognized testing laboratory that maintains periodic inspection of production of listed equipment of materials as meeting the requirements for relief valves for hot water supply systems, ANSI Z21.22 •... -
Page 15: Filling The Water Heater
No valve or other obstruction is to be placed between the If, after manually operating the valve, it fails to completely temperature-pressure relief valve and the tank. Do not reset and continues to release water, immediately connect discharge piping directly to the drain unless a close the cold water inlet to the water heater, follow the 6”... -
Page 16: Air Requirements
AIR REQUIREMENTS UNUSUALLY TIGHT CONSTRUCTION In unconfined spaces in buildings, infiltration may be adequate to provide air for combustion, ventilation and dilution of flue gases. However, in buildings of unusually Breathing Hazard - Carbon Monoxide Gas tight construction (for example, weather stripping, heavily insulated, caulked, vapor barrier, etc.) additional air must Install water heater in accordance with be provided using the methods described in that follows. -
Page 17: Fresh Air Openings For Confined Spaces
The required size of openings for combustion, ventilation Each opening shall have a minimum free area of 1 and dilution air shall be based on the “net free area” of square inch per 4,000 Btu/hr (550 mm per kW) of the each opening. -
Page 18: Outdoor Air Through Two Horizontal Ducts
OUTDOOR AIR THROUGH TWO HORIZONTAL DUCTS FIGURE 14. FRESH AIR FROM TWO VERTICAL DUCTS The confined space shall be provided with two permanent FIGURE 13. FRESH AIR FROM TWO HORIZONTAL DUCTS vertical ducts, one commencing within 12 inches (300 mm) of the top and one commencing within 12 inches The confined space shall be provided with two permanent (300 mm) of the bottom of the enclosure. -
Page 19: Venting
Such temperatures may not be high enough to properly open thermally operated vent dampers. This would cause spillage of the flue gases and may cause carbon monoxide poisoning. Vent dampers must bear evidence of certification as complying with the current edition of American National Standard ANSI Z21.66 CGA 6.14 (covering electrically and mechanically actuated vent dampers). - Page 20 FIGURE 17. VENT PIPE MINIMUM UPWARD SLOPE There must be a minimum of 6” (153 mm) clearance between single wall vent pipe and any combustible material. Fill and seal any clearance between single wall vent pipe and combustible material with mortar mix, cement, or other noncombustible substance.
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Page 21: Gas Piping
GAS PIPING • A flexible gas connector or a ground joint union between the shut off valve and control valve to permit Contact your local gas service company to ensure servicing of the unit. that adequate gas service is available and to review Be sure to check all the gas piping for leaks before applicable installation codes for your area. -
Page 22: Sediment Traps
Use pipe joint compound or teflon tape marked as being resistant to the action of petroleum [Propane (L.P.)] gases. The water heater and its gas connection must be leak tested before placing the water heater in operation. The water heater and its individual shut-off valve shall be disconnected from the gas supply piping system during any pressure testing of that system at test pressures in excess of 1/2 pound per square inch (3.5 kPa). - Page 23 FOR YOUR SAFETY READ BEFORE LIGHTING WARNING: If you do not follow these instructions exactly, a fire or explosion may result causing property damage, personal injury or loss of life. FLAMMABLE BEFORE LIGHTING: ENTIRE SYSTEM MUST BE FILLED WITH WATER AND AIR PURGED FROM ALL LINES This appliance has a pilot which is lit by a piezo- Use only your hand to push in or turn the gas control knob.
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Page 24: Temperature Regulation
TEMPERATURE REGULATION Short repeated heating cycles caused by small hot NOTE: water uses can cause the temperature to exceed The temperatures indicated are approximates. The actual the thermostat setting by up to 30°F (16.7°C). If you temperature of the heated water may vary. experience this type of use you should consider using STANDARD MODE lower temperature settings to reduce scald hazards. -
Page 25: Start-Up Conditions
FOR YOUR INFORMATION START-UP CONDITIONS Use this formula to “clock” the meter. Be sure that other gas consuming appliances are not operating during this DRAFT HOOD OPERATIONS interval. Check draft hood operation by performing a worst case 3,600 X H = Btu/Hr depressurization of the building. -
Page 26: Operational Conditions
Condensation causes sizzling and popping within the burner area during heating and cooling periods and Do not remove the anode leaving the tank unprotected. should be considered normal. By doing so, all warranty on the water heater tank is voided. OPERATIONAL CONDITIONS AIR IN HOT WATER FAUCETS SMELLY WATER... -
Page 27: Periodic Maintenance
PERIODIC MAINTENANCE VENTING SYSTEM INSPECTION BURNER INSPECTION Flood damage to a water heater may not be readily visible or immediately detectable. However, over a period of time a flooded water heater will create dangerous conditions which can cause DEATH, SERIOUS BODILY INJURY, OR PROPERTY DAMAGE. -
Page 28: Air Shutter Adjustment
AIR SHUTTER ADJUSTMENT ANODE ROD INSPECTION If the installation is at a high elevation and the burner flame exhibits flame lifting and/or noise, do the following: 1. Use a screw driver to loosen the air shutter screw. 2. Adjust the air shutter by rotating the shutter. Counter clockwise to close and Clockwise to open. - Page 29 be extremely hot. Use care when operating valve as the valve may be hot. To check the relief valve, lift the lever at the end of the valve several times, see . The valve should seat Figure 22 properly and operate freely. If after manually operating the valve, it fails to completely reset and continues to release water, immediately close the cold water inlet to the water heater and drain the...
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Page 30: Draining And Flushing
DRAINING AND FLUSHING TO FLUSH THE WATER HEATER STORAGE TANK: 1. Ensure the cold water inlet valve is open. It is recommended that the water heater storage tank be drained and flushed every 6 months to reduce sediment 2. Open a nearby hot water faucet and let the water run buildup. -
Page 31: Leakage Test Points
LEAKAGE TEST POINTS A. Water at the draft hood is water vapor which has condensed out of the combustion products. This is caused by a problem in the vent. Contact the gas utility. B. *Condensation may be seen on pipes in humid weather or pipe connections may be leaking. -
Page 32: Removing And Replacing The Gas Control Valve/Thermostat
4. Disconnect the igniter wire from the igniter lead wire. water heater. Many suspected leaks are not leaking Use needle nose pliers to disconnect the red (+) and tanks. Often the source of the water can be found and white (-) thermopile wires. Disconnect the pilot tube corrected. - Page 33 REPLACING THE GAS CONTROL VALVE/THERMOSTAT: 1. To replace the gas control valve/thermostat, reassemble in reverse order. When replacing the gas control valve/thermostat, thread a 4” section of gas pipe into the inlet and use it to turn the gas control valve/thermostat (clockwise). DO NOT OVER TIGHTEN;...
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Page 34: Status Light And Diagnostic Code
TABLE 5. STATUS LIGHT AND DIAGNOSTIC CODE TROUBLESHOOTING CHART LED Status Problem Corrective Action 0 FLASHES (LED NOT LIT) Pilot light is not lit or Thermopile has not yet Turn Gas Control Valve/Thermostat knob to OFF. Wait reached normal operating temperature. 10 minutes, then attempt to relight Pilot by following the lighting instructions on the water heater’s label. - Page 35 TABLE 5. STATUS LIGHT AND DIAGNOSTIC CODE TROUBLESHOOTING CHART LED Status Problem Corrective Action 5 FLASHES The temperature sensor (thermistor) is defec- Turn Gas Control Valve/Thermostat knob to OFF. Turn tive. Main Gas Supply OFF. Replace the Gas Control Valve/ Thermostat.
- Page 36 TABLE 6. GENERAL TROUBLESHOOTING GUIDELINES These guidelines should be used by a qualified service agent. Symptom Problem Corrective Action Improperly sealed, hot or cold supply connection, relief Tighten threaded connections. valve, drain valve, or thermostat threads. WATER LEAKS Leakage from other appliances or water lines. Inspect other appliances near water heater.
- Page 37 NOTES...