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SAFE INSTALLATION, USE AND SERVICE

Your safety and the safety of others is extremely important in the installation, use and servicing of this water heater.

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.  Read and obey all safety messages and instructions throughout this manual.  It is very important 
that the meaning of each safety message is understood by you and others who install, use or service this water heater.

All safety messages will generally tell you about the type of hazard, what can happen if you do not follow the safety message and 
how to avoid the risk of injury.

IMPORTANT DEFINITIONS

• 

Qualifi ed Installer:  

A qualifi ed installer must have ability equivalent to a licensed tradesman in the fi elds of plumbing, 

air supply, venting and gas supply, including a thorough understanding of the requirements of the National Fuel Gas 
Code as it relates to the installation of gas fi red water heaters.  The qualifi ed installer must also be familiar with the 
design features and use of fl ammable vapor ignition resistant water heaters, and have a thorough understanding of 
this instruction manual.

• 

Service Agency: 

 A service agency also must have ability equivalent to a licensed tradesman in the fi elds of plumbing, 

air supply, venting and gas supply, including a thorough understanding of the requirements of the National Fuel Gas 
Code as it relates to the installation of gas fi red water heaters.  The service agency must also have a thorough 
understanding of this instruction manual, and be able to perform repairs strictly in accordance with the service guidelines 
provided by the manufacturer.

•  

 Gas  Supplier: 

The Natural Gas or Propane Utility or service who supplies gas for utilization by the gas burning 

appliances within this application. The gas supplier typically has responsibility for the inspection and code approval of 
gas piping up to and including the Natural Gas meter or Propane storage tank of a building. Many gas suppliers also 
offer service and inspection of appliances within the building.

Summary of Contents for COMMERCIAL GAS WATER HEATERS

Page 1: ...IL AT 2TECH LOCHINVAR COM COMMERCIAL GAS WATER HEATERS For Your Safety AN ODORANT IS ADDED TO THE GAS USED BY THIS WATER HEATER C3 Technology Gas Water Heaters meet the new ANSI Z21 10 1 standard that...

Page 2: ...it relates to the installation of gas fired water heaters The qualified installer must also be familiar with the design features and use of flammable vapor ignition resistant water heaters and have a...

Page 3: ...3 GENERAL SAFETY...

Page 4: ...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 operation an...

Page 5: ...Y LOCAL CODES FIGURE 1 J Drip Leg Sediment Trap K Inner Door L Outer door M Union N Inlet Water Shut off Valve O Cold Water Inlet P Inlet Dip Tube Q Temperature Pressure Relief Valve R Rating Plate S...

Page 6: ...others These include the elderly children the infirm or physically mentally handicapped If anyone using hot water in your home fits into one of these groups or if there is a local code or state law re...

Page 7: ...larm or turn off the incoming water to the water heater when leakage is detected Sensors mounted in the drain pan that turn off the water supply to the entire home when water is detected in the drain...

Page 8: ...al injury or death Do not apply insulation to the top of the water heater as this will interfere with safe operation of the draft hood Do not cover the outer door thermostat or temperature pressure re...

Page 9: ...1 cm2 kW of total input rating of all equipment in the enclosure see Figure 9 Alternatively a single permanent opening may be used when communicating directly with the outdoors or with spaces that fre...

Page 10: ...uires water for space heating at temperatures higher than required for domestic water purposes a tempering valve must be installed Please refer to Figure 2 for suggested piping arrangement Water suppl...

Page 11: ...ctly into the fitting of the water heater designed for the relief valve Position the valve downward and provide tubing so that any discharge will exit only within 6 inches 153 mm above or at any dista...

Page 12: ...ion For replacement heater installations where using pre existing venting venting must be inspected for obstructions and if deterioration is present venting must be replaced To insure proper venting o...

Page 13: ...ing all gas appliances is used also turn off the gas at each appliance Leave all gas appliances shut off until the water heater installation is complete A gas line of sufficient size must be run to th...

Page 14: ...trol valve of the water heater can be accomplished by either of the two methods shown in Figures 13 and 14 A sediment trap shall be installed as close to the inlet of the water heater as practical at...

Page 15: ...burner It can be located by looking through the glass view port while pressing the piezo ignitor button several times Look for a spark at the pilot location see Figure D 9 Once the pilot has been foun...

Page 16: ...htubs showers sink etc HOTTER WATER CAN SCALD Water heaters are intended to produce hot water Water heated to a temperature which will satisfy space heating clothes washing dish washing and other sani...

Page 17: ...urner 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...

Page 18: ...able However over a period of time a flooded water heater will create dangerous conditions which can cause DEATH SERIOUS BODILY INJURY OR PROPERTY DAMAGE Contact a qualified installer or service agenc...

Page 19: ...s to completely reset and continues to release water immediately close the cold water inlet to the water heater follow the draining instructions and replace the temperature pressure relief valve with...

Page 20: ...d 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 Water in the water heater bottom or on the floor may be from cond...

Page 21: ...ional 26 Instruction Manual 27A Nipple with Heat Trap 27B Secondary Anode with Heat Trap Not Shown Now that you have purchased this water heater should a need ever exist for repair parts or service si...

Page 22: ...nctions Thermocouple TCO malfunction Replace pilot assembly High ambient room temperature Contact a service agency to determine cause BURNER WILL NOT Dirty or clogged air intake screen Clean and reins...

Page 23: ...23 NOTES...

Page 24: ...24 300 Maddox Simpson Parkway Lebanon TN 37090 Phone 615 889 8900 Fax 615 547 1000 Technical Services email 2tech lochinvar com www lochinvar com Copyright 2011 Lochinvar LLC All rights reserved...

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