Table of Contents
Advertisement
Quick Links
MODELS CG(N,L)150 & CG(N,L)200
COMMERCIAL GAS, GLASS-LINED, TANK-TYPE WATER HEATER
• INSTALLATION • OPERATION • MAINTENANCE • LIMITED WARRANTY
Thank you for buying this energy efficient water heater. We
appreciate your confidence in our products.
Printed in U.S.A. 1011
PLACE THESE INSTRUCTIONS ADJACENT TO HEATER
AND NOTIFY OWNER TO KEEP FOR FUTURE REFERENCE.
TEXT IN BLACK BOLD TYPE OR UNDERLINED CONTAINS
INFORMATION RELATIVE TO YOUR SAFETY. PLEASE READ
THOROUGHLY BEFORE INSTALLING AND USING THIS
APPLIANCE.
300 Maddox Simpson Parkway
Phone: 615-889-8900 • Fax: 615-547-1000
Technical Service email: 2tech@lochinvar.com
1
CAUTION
Lebanon, TN 37090
www.Lochinvar.com
322880-000
Advertisement
Table of Contents
Related Manuals for Lochinvar CGN150
Summary of Contents for Lochinvar CGN150
- Page 1 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 in U.S.A. 1011...
-
Page 2: Rough-In-Dimensions
ROUGH-IN-DIMENSIONS TABLE 1 - HEATER PERFORMANCE DATA Input Approx. RECOVERY RATING CAPACITIES (GPH) AT TEMPERATURE RISE SHOWN Rate Tank Approx. 20°F 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. Eff. % 11°C 17°C 22°C 28°C 33°C 39°C 44°C 50°C 56°C 61°C 67°C 72°C 78°C CGN150032... -
Page 3: Table Of Contents
TABLE OF CONTENTS Page Page ROUGH-IN-DIMENSIONS ............2 INSTALLATION DIAGRAMS ..........11-17 FOREWORD ................2 OPERATION ................18 GENERAL SAFETY INFORMATION ........3 General ................18 Precautions .................3 SEQUENCE OF OPERATION ..........18 Grounding Instructions ............3 Lighting and Operation ............19 Chemical Vapor Corrosion...........3 Water Temperature Control ..........20 Improper Combustion ............ -
Page 4: Extended Non-Use
Also due to the input rating reduction required at high altitudes, Lochinvar water heater. The purpose of an insulation blanket is to the output rating of the appliance is also reduced and should be reduce the standby heat loss encountered with storage tank water heaters. -
Page 5: High Limit Switch
EXHAUST INDUCER (BLOWER ASSEMBLY) possibility of changing the orientation by accidentally overtightening the inlet supply. Improper orientation of the Eliminator may cause temperature buildup issues or spells of colder than usual water All units are equipped with a exhaust inducer. The inducer temperatures. -
Page 6: Installation Instructions
INSTALLATION INSTRUCTIONS LEVELING If the unit is not level, insert the bolts which were used in crating REQUIRED ABILITY into the legs to correct this condition. INSTALLATION OR SERVICE OF THIS WATER HEATER CLEARANCES REQUIRES ABILITY EQUIVALENT TO THAT OF A LICENSED TRADESMAN IN THE FIELD INVOLVED. -
Page 7: Venting
FIGURE 6 - ILLUSTRATION OF MINIMUM COMBUSTIBLE CLEARANCES IN AN ALCOVE Remove all soot or other obstructions from the chimney that will CAUSING CARBONING OR SOOTING OF THE COMBUSTION retard a free draft. CHAMBER, BURNERS AND FLUE TUBES AND CREATES A RISK OF ASPHYXIATION. -
Page 8: Multiple Heater Manifold
CAUTION A closed system will exist if a check valve (without bypass), pressure reducing valve (without bypass), or a water meter (without bypass) is installed in the cold water line between the water heater and street main (or well). Excessive pressure may develop in such closed systems, FIGURE 7 causing premature tank failure or intermittent relief valve operation. -
Page 9: Gas Piping
GAS PIPING To prevent damage, care must be taken not to apply too much torque when attaching gas supply pipe to gas valve inlet. Contact your local gas service company to ensure that adequate Apply joint compounds (pipe dope) sparingly and only to the gas service is available and to review applicable installation codes male threads of pipe joints. -
Page 10: Heater Wiring
Do not subject the combination gas valve to inlet gas must conform to all local code authority having jurisdiction. AN pressures of more than 14.0” W.C. - natural gas. A service ELECTRICAL GROUND IS REQUIRED TO REDUCE RISK OF regulator is necessary if higher gas pressures are encountered. ELECTRICAL SHOCK OR POSSIBLE ELECTROCUTION. -
Page 11: Installation Diagrams
INSTALLATION DIAGRAMS is installed on the heater. The locations shown in the installation diagrams on the following pages are typical. GENERAL The discharge opening of the temperature and pressure relief valve, located in front of the heater must be piped to an open drain and should not be subject to freezing temperatures. - Page 12 VERTICAL STORAGE TANK AND FORCED CIRCULATION DANGER TEMPERATURE SETTING SHOULD NOT EXCEED SAFE USE TEMPERATURE AT FIXTURES. SEE WATER TEMPERATURE CONTROL WARNING ON PAGE 20. 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 13 TWO TEMPERATURE - ONE HEATER HIGH TEMPERATURE STORAGE WITH RECIRCULATION OF SANITIZING LOOP DANGER NOTE 1: TOGGLE SWITCH CONTROLS 180°F (82°C) WATER TEMPERATURE SETTING SHOULD NOT EXCEED SAFE USE TEMPERATURE AT FIXTURES. SEE WATER TEMPERATURE CONTROL CIRCULATION. INSTALL ON OR CLOSE TO DISHWASHING WARNING ON PAGE 20.
- Page 14 ANTI-SCALD VALVE FOR HOT WATER SUPPLIED TO FIXTURES. CIRCULATING RETURN LINE CONNECTION FROM FIXTURE LOOP, IF USED, CONNECT TO PRE-HEATER INLET. FROM BOOSTED TEMPERATURE LOOP, IF USED CONNECT TO BOOSTER INLET. † AVAILABLE FROM LOCHINVAR. PIPE RELIEF VALVE TO OPEN DRAIN. INSTALL IN ACCORDANCE WITH LOCAL CODES.
- Page 15 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 20. IF HIGHER PREHEAT TEMPERATURES ARE NECESSARY TO OBTAIN ADEQUATE BOOSTER OUTPUT, ADD AN ANTI-SCALD VALVE FOR HOT...
- Page 16 TWO TEMPERATURE - TWO PRE-HEATERS WITH MIXING VALVE OR BOOSTER HEATER WITH OR WITHOUT BUILING 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 20. IF HIGHER PREHEAT TEMPERATURES ARE NECESSARY TO OBTAIN ADEQUATE BOOSTER OUTPUT, ADD AN ANTI-SCALD...
-
Page 17: Vertical Storage Tank
MEDIUM TEMPERATURE - ONE HEATER WITH AUXILIARY STORAGE TANK FORCED CIRCULATION WITH OR WITHOUT BUILDING RECIRCULATION VERTICAL STORAGE TANK * PIPE RELIEF VALVE TO OPEN DRAIN. **WHEN USING AN LOCHINVAR T-140, -200, -350 OR -400 STORAGE TANK, USE LOWER 3/4” OPENING FOR TANK TEMPERATURE CONTROL. -
Page 18: Operation
OPERATION into lockout. After the controller tries three times, it will wait one hour before trying to light the unit again. This cycle will continue until the main burners are ignited or the unit is shut down. IMPORTANT A qualified person must perform the initial firing of the heater. At ADJUSTMENTS this time the user should not hesitate to ask the individual any ON INITIAL STARTUP SOME ADJUSTMENTS ARE NECESSARY. -
Page 19: Lighting And Operation
FOR YOUR SAFETY READ BEFORE OPERATING IF YOU DO NOT FOLLOW THESE INSTRUCTIONS EXACTLY A FIRE OR EXPLOSION WARNING MAY RESULT CAUSING PROPERTY DAMAGE, PERSONAL INJURY OR LOSS OF LIFE. This appliance does not have a pilot. It is equipped with •... -
Page 20: Water Temperature Control
WATER TEMPERATURE CONTROL be set for 120° to 180°F water temperature, but 120°F is the recommended starting point. It is suggested the dial be placed on the lowest setting which produces an acceptable hot water supply. This will always give the most energy efficient operation. The temperature control has a 4°F (2°C) fixed differential. -
Page 21: Main Burner
NOTE: 3. Remove the regulator adjustment sealing cap, see Remove main burners from unit. Figure 13, and adjust the pressure by turning the adjusting Check that burner venturi and ports are free of foreign screw with a screwdriver. debris. Clockwise to increase gas pressure and input rate. Clean burners with bristle brush and/or vacuum cleaner - DO NOT distort burner ports or pilot location. -
Page 22: Relief Valve
RELIEF VALVE NOTE: Anode rod inspection may need to be made more frequently in areas subject to acid rain that obtains their water At least once a year, the temperature and pressure relief valve supply from surface water as the low pH will accelerate anode activity. -
Page 23: Deliming Solvents
Example 2: 6. Install cleanout plate. Be sure to draw plate up tight by If initial inspection after 6 months shows 2” of lime accumulation. tightening screws securely. Therefore, the heater should be delimed every 3 months. 7. 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. -
Page 24: Service
Replacement par ts may be ordered through Lochinvar dealers, authorized servicers or distributors. Refer to the As preliminary step, check wiring against diagram, check for grounded, broken or loose wires. -
Page 25: Sequence Of Operation Flow Chart
SEQUENCE OF OPERATION FLOW CHART Description of this flow chart can be found in the “SEQUENCE OF OPERATION” section found on page 18. Ignition Switch power on Control Board to unit. opens Gas Valve. Ignition Control Thermostat calls Board shuts off for heat. -
Page 26: 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 be examined before using the checklist. -
Page 27: 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 28 300 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.