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MODELS CG(N,L)120 THRU 400A
COMMERCIAL GAS, GLASS-LINED, TANK-TYPE WATER HEATER
•
INSTALLATION
Thank you for buying this energy efficient water heater. We
appreciate your confidence in our product.
PRINTED 1011
•
OPERATION
•
PLACE THESE INSTRUCTIONS ADJACENT TO HEATER
AND NOTIFY OWNER TO KEEP FOR FUTURE REFERENCE.
MAINTENANCE
TE X T P R I N TE D OR O U TL I N E D IN R E D C O N TA I N S
INFORMATION RELATIVE TO YOUR SAFETY. PLEASE
READ THOROUGHLY BEFORE INSTALLING AND USING
THIS APPLIANCE.
Phone: 615-889-8900 • Fax: 615-547-1000
Technical Service email: 2tech@lochinvar.com
1
•
LIMITED WARRANTY
CAUTION
300 Maddox Simpson Parkway
Lebanon, TN 37090
www.Lochinvar.com
322876-000
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Summary of Contents for Lochinvar CG 120
- Page 1 READ THOROUGHLY BEFORE INSTALLING AND USING THIS APPLIANCE. 300 Maddox Simpson Parkway Lebanon, TN 37090 Phone: 615-889-8900 • Fax: 615-547-1000 Technical Service email: 2tech@lochinvar.com www.Lochinvar.com PLACE THESE INSTRUCTIONS ADJACENT TO HEATER AND NOTIFY OWNER TO KEEP FOR FUTURE REFERENCE. PRINTED 1011...
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Page 2: Rough-In-Dimensions
ROUGH-IN-DIMENSIONS See Models Below * CG(N,L)1200070 Models are approved for 5” (13 cm) venting using a 6” (15 cm) to 5” (13 cm) reducer. MODELS CG(N,L)120 Through CG(N,L)400 - TABLE 1A MODEL INPUT APPROX. VENT CONNECTIONS Approximate RATE TANK INLET INLET OUTLET ship. - Page 3 TABLE 1C - HEATER PERFORMANCE DATA CG(N,L) MODELS INPUT APPROX. RECOVERY RATING CAPACITIES (GPH AND LPH) RATE GAL. EFF. 30°F 40°F 50°F 60°F 70°F 80°F 90°F 100°F 110°F 120°F 130°F 140°F MODEL BTUH CAP. (-)1° C 4° C 10° C 15° C 21° C 27° C 32° C 38° C 43° C 49°...
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Page 4: Table Of Contents
TABLE OF CONTENTS Page Page ROUGH-IN-DIMENSIONS ..........2-3 Grounding Instructions ............15 Heater Wiring...............15 TABLE OF CONTENTS ............4 INSTALLATION DIAGRAMS ..........15-21 FOREWORD .................4 GENERAL SAFETY INFORMATION ........5 MECHANICAL VENTING ............22 Chemical Vapor Corrosion .............5 Single Unit Installation ............22 Improper Combustion ............5 Vent Installation ..............22 Liquid Petroleum Models ............5 Multiple Unit Installation............22 Extended Non-Use Periods ...........5... -
Page 5: General Safety Information
Insulation blankets available to the general public for external use on gas water heaters are not approved for use on your Lochinvar water heater. The purpose of an insulation blanket is to reduce the standby heat loss encountered with storage tank WARNING water heaters. -
Page 6: High Altitude Installation
• Do inspect the insulation blanket frequently to make sure it FEATURES does not sag, thereby obstructing combustion air flow. • Do obtain new labels from Lochinvar for placement on the THE ELIMINATOR blanket directly over the existing labels. (SELF-CLEANING SYSTEM) -
Page 7: Electronic Ignition Control
Continued manual resetting of high limit control, preceded by be obtained by contacting your Lochinvar dealer, distributor higher than usual water temperature is evidence of high limit or, Parts Department, 300 Maddox Simpson Pkwy, Lebanon, switch operation. The following is a possible reason for high limit TN 37090, Phone: 615-889-8900 •... -
Page 8: Installation Instructions
The National Sanitation Foundation also recommends circulation NEVER BE PLACED ON OR ADJACENT TO THE HEATER. of 180°F (82°C) water. Where this is done, the circulation OPEN CONTAINERS OR FLAMMABLE MATERIAL SHOULD should be very gentle so that it does not cause any unnecessary NOT BE STORED OR USED IN THE SAME ROOM WITH turbulence inside the water heater. -
Page 9: Installation On Combustible Flooring
ILLUSTRATION OF MINIMUM COMBUSTIBLE CLEARANCES IN AN ALCOVE FIGURE 6 AIR REQUIREMENTS The following units are approved for installation with side, rear and ceiling clearances as indicated below: REFER TO THE CURRENT EDITION OF THE “NATIONAL FUEL GAS CODE” ANSI Z223.1/NFPA 54. FOR CANADA CONSULT NATURAL GAS AND PROPANE INSTALLATION CODE (RIGHT SIDE) (LEFT SIDE) -
Page 10: Confined Space
CONFINED SPACE many local building codes as is the practice of venting gas fired equipment to the duct work of ventilation systems. When drawing combustion and dilution air from inside a conventionally constructed building to a confined space, such a space shall be •... - Page 11 TECHNICAL DATA VENTING, TABLE 3 TYPE B GAS VENT Multiple Gas Fired Tank-Type Heaters When venting mutiple tank type heaters using Type B vent pipe, follow the installation diagram (figure 8) and tables below which give sizing and data based upon NFPA 54/ANSI Z223.
- Page 12 TECHNICAL DATA VENTING, TABLE 3 (Continued) MODEL CG(N,L)250100(A), 2500065(A) Input: 250,000, 251,000 Total Vent Height (Feet) Draft Hood: 6” Input Btuh Rise Vent Connector Diameter (in inches) 250/251,000 1 Ft. 250/251,000 250/251,000 3 Ft. Number Combined Input of Heaters in Thousands of Btuh Manifold and Common Vent Diameter (In inches) 500/502 750/753...
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Page 13: Water (Potable) Heating And Space Heating
If a water heater is installed in a closed water system, contact installed with a properly sized, rated and approved combination the water supplier or local plumbing inspector on how to control temperature (ANSI) and pressure (ASME) relief valve(s). this situation. WARNING WATER (POTABLE) HEATING AND THE PURPOSE OF RELIEF VALVE IS TO AVOID EXCESSIVE... -
Page 14: Gas Piping And Dirt Leg Installation
GAGE- 3.5 kPa) SUPPLY GAS PRESSURE. EXPOSURE TO GAS SUPPLIERS. REFER TO THE CURRENT EDITION OF THE HIGHER SUPPLY PRESSURE MAY CAUSE DAMAGE TO THE NATIONAL FUEL GAS CODE. For Canadian installations consult GAS VALVE WHICH COULD RESULT IN FIRE OR EXPLOSION. Natural Gas and Propane Installation Code CAN/CSA-B149.1. -
Page 15: Gas Pressure Regulator
Do not subject the combination gas valve to inlet gas BEFORE PLACING THE HEATER IN OPERATION, CHECK FOR pressures of more than 14.0” W.C. (3.48 kPa) - natural gas, GAS LEAKAGE. Use soap and water solution or other material 14.0” W.C. (3.48 kPa)- propane gas. A service regulator is acceptable for the purpose in locating the leaks. - Page 16 VERTICAL STORAGE TANK AND FORCED CIRCULATION DANGER TEMPERATURE SETTING SHOULD NOT EXCEED SAFE USE TEMPERATURE AT FIXTURES. SEE WATER TEMPERATURE CONTROL WARNING ON PAGE 27. IF HIGHER PREHEAT TEMPERATURES ARE NECESSARY TO OBTAIN ADEQUATE BOOSTER OUTPUT, ADD AN ANTI-SCALD VALVE FOR HOT WATER SUPPLIED TO FIXTURES. HORIZONTAL STORAGE TANK AND FORCED CIRCULATION...
- Page 17 TWO TEMPERATURE - ONE HEATER HIGH TEMPERATURE STORAGE WITH RECIRCULATION OF SANITIZING LOOP DANGER TEMPERATURE SETTING SHOULD NOT EXCEED SAFE USE NOTE 1: TOGGLE SWITCH CONTROLS 180°F (82°C) WATER TEMPERATURE AT FIXTURES. SEE WATER TEMPERATURE CIRCULATION. INSTALL ON OR CLOSE TO DISHWASHING CONTROL WARNING ON PAGE 27.
- Page 18 CIRCULATING RETURN LINE CONNECTIONS - FROM FIXTURE LOOP, IF USED, CONNECT TO PREHEATER INLET. - FROM BOOSTED TEMPERATURE LOOP, IF USED CONNECT TO BOOSTER INLET. †AVALAIBLE FROM LOCHINVAR. *PIPE RELIEF VALVE TO OPEN DRAIN. INSTALL IN ACCORDANCE WITH LOCAL CODES.
- Page 19 ONE OR TWO TEMPERATURE - ONE HEATERS,HIGH TEMPERATURE STORAGE WITH OR WITHOUT RECIRCULATION HEATER WITH OR WITHOUT MIXING VALVE DANGER TEMPERATURE SETTING SHOULD NOT EXCEED SAFE USE TEMPERATURE AT FIXTURES. SEE WATER TEMPERATURE CONTROL WARNING ON PAGE 27. IF HIGHER PREHEAT TEMPERATURES ARE NECESSARY TO OBTAIN ADEQUATE BOOSTER OUTPUT, ADD AN ANTI-SCALD VALVE FOR HOT WATER...
- Page 20 TWO TEMPERATURE - TWO PRE-HEATERS WITH MIXING VALVE OR BOOSTER HEATER WITH OR WITHOUT BUILDING RECIRCULATION TWO PRE-HEATERS WITH MIXING VALVE DANGER TEMPERATURE SETTING SHOULD NOT EXCEED SAFE USE TEMPERATURE AT FIXTURES. SEE WATER TEMPERATURE CONTROL WARNING ON PAGE 27. IF HIGHER PREHEAT TEMPERATURES ARE NECESSARY TO OBTAIN ADEQUATE BOOSTER OUTPUT, ADD AN ANTI-SCALD VALVE FOR HOT WATER...
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Page 21: Vertical Storage Tank
MEDIUM TEMPERATURE - ONE HEATER WITH AUXILIARY STORAGE TANK FORCED CIRCULATION WITH OR WITHOUT BUILDING RECIRCULATION VERTICAL STORAGE TANK INSERT A * PIPE RELIEF VALVE TO OPEN DRAIN. IF BUILDING CIRCULATING LOOP IS USED, CONNECT TO AN OPENING NEAR THE BOTTOM OF THE TANK. HORIZONTAL STORAGE TANK CAUTION: IF BUILDING COLD WATER SUPPLY HAS A BACKFLOW PREVENTER, CHECK VALVE OR WATER... -
Page 22: Mechanical Venting
2500 22.6 SEC. For multiple unit installations, contact Lochinvar, Parts Figures shown are valid for 0-2000 ft.(0-610m) installations. See D e p a r t m e n t , 3 0 0 M a d d o x S i m p s o n P k w y, L e b a n o n , “HIGH ALTITUDE INSTALLATIONS”... -
Page 23: Operation
OPERATION PURGING Gas line purging is required with new piping or systems in which IMPORTANT air has entered. A qualified person must perform the initial firing of the heater. At CAUTION this time the user should not hesitate to ask the individual any PURGING SHOULD BE PERFORMED BY PERSONS questions which they may have in regard to the operation and EXPERIENCED IN THIS TYPE GAS SERVICE. -
Page 24: Lighting And Operating Labels
FOR NATURAL GAS MODELS FOR YOUR SAFETY READ BEFORE OPERATING OPERATING INSTRUCTIONS FOR YOUR SAFETY READ BEFORE OPERATING... - Page 25 FOR PROPANE GAS MODELS FOR YOUR SAFETY READ BEFORE OPERATING OPERATING INSTRUCTIONS TO TURN OFF GAS TO APPLIANCE...
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Page 26: Water Temperature Control
ADJUSTMENTS that attach to faucets to limit hot water temperatures. Contact a licensed plumber or the local plumbing authority. ON INITIAL STARTUP SOME ADJUSTMENTS ARE NECESSARY. The water temperature is controlled by a thermostat, Fig. 3, which 1. CHECK MANIFOLD AND INLET GAS PRESSURES. has two sensing elements. -
Page 27: Preventive Maintenance
2. Inspect the venting system for proper size and horizontal pitch, • The pilot flame should envelop sensing device with 5/8” as required in the National Fuel Gas Code, ANSI Z223.1 or the (1.6cm) flame, fig. 16. Remove pilot adjustment cover screw, Natural Gas and Propane Installation Code CAN/CSA-B149.1 fig. -
Page 28: Gas Valves
TYPICAL PILOT AND MAIN BURNER FLAMES If the gas valve becomes defective, repairs should not be attempted. A new valve should be installed in place of the defective one. CHECKING THE INPUT For appliance installation locations with elevations above 2000 feet (610 m), refer to HIGH ALTITUDE INSTALLATIONS section FIGURE 16 of this manual for input reduction procedure. -
Page 29: Venting System
VENTING SYSTEM material. THE ANODES SHOULD BE REPLACED when the 1/8” (3mm) diameter core wire is visible as this means that the anode Examine the venting system every six months for obstructions material has been expended in the control of corrosion. and/or deterioration of the vent piping. -
Page 30: Deliming Solvents
boiling noises. To dissolve and remove these more stubborn CAUTION mineral deposits, UN•LIME Professional Delimer should Observe handling instructions on label of product being used. be used. TANK CLEANOUT PROCEDURE TROUBLESHOOTING IGNITION MODULE SYSTEM The following practices will ensure longer life and enable the unit to operate at its designed efficiency: Before calling your service agent, the following checklist should 1. -
Page 31: Service
HOWEVER, it is recommended that only qualified servicemen, using appropriate Replacement par ts may be ordered through Lochinvar test equipment, be allowed to service the heater. dealers, authorized servicers or distributors. Refer to the... -
Page 32: Effikal Flue Damper Troubleshooting Guide
EFFIKAL RVGP-KSF-SERIES FLUE DAMPER TROUBLE SHOOTING GUIDE Do not turn damper open manually or motor damage will result, use the service switch. All readings are taken from harness receptacle. Do not push meter leads into harness receptacle. This opens the pins and will create connection problems. Effikal Pinouts Adapter wire &... -
Page 33: Operational Checklist
OPERATIONAL CHECKLIST This checklist in conjunction with “TROUBLESHOOTING” and the “SEQUENCE OF OPERATION” should be used as an on-the-job troubleshooting guide to identify the cause of incorrect system operation and suggest a remedy for its correction. Because improper piping and wiring can result in unsatisfactory system performance, it is suggested that the installation by examined before using the checklist. -
Page 34: Limited Warranty
If the glass-lined tank in this water heater shall prove upon examination by the warrantor to have leaked due to natural corrosion from potable water therein, during the first THREE years after initial installation, the warrantor will supply a complete new Lochinvar water heater of equivalent size and current model at the warrantor's option. - Page 35 NOTES...
- Page 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 © 2011 Lochinvar, LLC, All rights reserved.