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FOR NATURAL GAS MODELS

FOR YOUR SAFETY READ BEFORE OPERATING

OPERATING INSTRUCTIONS

FOR YOUR SAFETY READ BEFORE OPERATING

Summary of Contents for CG 120 THRU 400A

Page 1: ...E CAUTION TEXT PRINTED OR OUTLINED IN RED CONTAINS INFORMATION RELATIVE TO YOUR SAFETY PLEASE READ THOROUGHLY BEFORE INSTALLING AND USING THIS APPLIANCE Thank you for buying this energy efficient wate...

Page 2: ...58 kW Hr 379 L 183 cm 12 cm 165 cm 142 cm 50 cm 58 cm 1 2 143 cm 15 cm 77 cm 1 50 2 00 2 00 1 50 2 00 2 00 286 Kg 329 Kg CG N L 250 000 BTR Hr 100 Gal 72 00 4 50 65 13 55 87 19 75 23 1 2 56 38 8 30 2...

Page 3: ...1745 1393 1162 996 871 776 697 632 583 538 500 CG N L 199 000 BTUH 100 Gal 80 643 482 386 322 276 241 214 193 175 161 148 132 199100 A 58 Kw Hr 379 L 2434 1825 1461 1219 1045 912 810 731 662 609 560...

Page 4: ...bleshooting Guide 32 Operational Checklist 33 Limited Warranty 34 Page Page FOREWORD These designs comply withANSI Z21 10 3 CSA4 3 as an automatic circulating or automatic storage tank type water heat...

Page 5: ...ve and heavier than air It collects first in the low areas making its odor difficult to detect at nose level If LP gas is present or even suspected do not attempt to find the cause yourself Go to a ne...

Page 6: ...nt with orifices sized for the particular installation elevation Correct orifice sizing and parts may be obtained from Lochinvar LLC When ordering be sure to state the model number and the altitude of...

Page 7: ...TION and HOLD OPEN DAMPER For normal operation the switch should be in the AUTOMATIC OPERATION position If there is a problem with the damper the Service Switch can be placed in the HOLD OPEN DAMPER p...

Page 8: ...n on combustible flooring in an alcove when the minimum clearance from any combustion construction are followed as indicated in figure 6 and Table 2 The National Sanitation Foundation also recommends...

Page 9: ...ee MAINTENANCE section for details of tank cleanout procedure AIR REQUIREMENTS REFER TO THE CURRENT EDITION OF THE NATIONAL FUEL GAS CODE ANSI Z223 1 NFPA 54 FOR CANADA CONSULT NATURAL GAS AND PROPANE...

Page 10: ...AND ASPHYXIATION Heater must be protected from freezing downdrafts Remove all soot or other obstructions from the chimney that will retard a free draft Type B venting is recommended with these heater...

Page 11: ...CG N L 180080 200080 200100 199100 Input 180 000 190 000 199 000 Btuh Total Vent Height Feet Draft Hood 6 6 8 10 15 20 30 50 100 Input Btuh Rise Vent Connector Diameter in inches 180 000 1 Ft 8 8 8 8...

Page 12: ...N L 305065 A Input 305 000 Btuh Total Vent Height Feet Draft Hood 8 6 8 10 15 20 30 50 100 Input Btuh Rise Vent Connector Diameter in inches 315 000 1 Ft 10 10 10 10 10 10 305 000 2 Ft 10 10 10 10 10...

Page 13: ...tank which may be used in conjunction with this appliance shall also be installed with a properly sized rated and approved combination temperature ANSI and pressure ASME relief valve s WARNING THE PU...

Page 14: ...F THE GAS SUPPLY SYSTEM NOT THE HEATER VENT BLOCKAGE MAY OCCUR DURING ICE STORMS IT IS IMPORTANT TO GUARD AGAINST GAS VALVE FOULING FROM CONTAMINANTS IN THE GAS WAYS SUCH FOULING MAY CAUSE IMPROPER OP...

Page 15: ...UPPLY PRESSURE TESTING EXCEEDING 1 2 PSIG 3 5 kPa GAS SUPPLY LINE MUST BE CAPPED WHEN DISCONNECTED FROM THE HEATER FOR TEST PRESSURES OF 1 2 PSIG 3 5 kPa OR LESS THE APPLIANCE NEED NOT BE DISCONNECTED...

Page 16: ...ULD NOT EXCEED SAFE USE TEMPERATURE AT FIXTURES SEE WATER TEMPERATURE CONTROLWARNING ON PAGE 27 IF HIGHER PREHEATTEMPERATURESARE NECESSARY TO OBTAINADEQUATE BOOSTER OUTPUT ADD AN ANTI SCALD VALVE FOR...

Page 17: ...T BE CLOSED ON DURING THERINSEOPERATIONANDOPEN OFF WHENDISHWASHER IS NOT OPERATING OR WHEN ON LONG STANDBY NOTE 2 INSTALL LINE TEMPERATURE CONTROL IN AN UNINSULATED TEE BEYOND THE DISHWASHING MACHINE...

Page 18: ...n the installation diagrams on the following pages are typical TWO TEMPERATURE TWO HEATERS ONE PRE HEATER ONE BOOSTER HEATER WITH OR WITHOUT BUILDING RECIRCULATION The discharge opening of the tempera...

Page 19: ...3 ADJUST PLUG COCK SO THE SANITIZING LOOP FLOW RATE DOES NOT CAUSE UNNECESSARY TURBULENCE IN THE TANK PIPE RELIEF VALVE TO OPEN DRAIN INSTALL IN ACCORDANCE WITH LOCAL CODES CIRCULATING RETURN LINE CO...

Page 20: ...WITH MIXING VALVE TWO PRE HEATERS WITH BOOSTER HEATER DANGER TEMPERATURE SETTING SHOULD NOT EXCEED SAFE USE TEMPERATURE AT FIXTURES SEE WATER TEMPERATURE CONTROL WARNING ON PAGE 27 IF HIGHER PREHEAT T...

Page 21: ...TEMPERATURES ARE NECESSARY TO OBTAIN ADEQUATE BOOSTER OUTPUT ADD AN ANTI SCALD VALVE FOR HOT WATER SUPPLIED TO FIXTURES PIPE RELIEF VALVE TO OPEN DRAIN IF BUILDING CIRCULATING LOOP IS USED CONNECT TO...

Page 22: ...uctions MULTIPLE UNIT INSTALLATIONS For multiple unit installations contact Lochinvar Parts Department 300 Maddox Simpson Pkwy Lebanon TN 37090 Phone 615 889 8900 Fax 615 882 2918 email parts_team loc...

Page 23: ...AVOIDRISKOF FIRE OR EXPLOSION PURGE DISCHARGE MUST NOT ENTER CONFINEDAREAS OR SPACES WHERE IGNITION CAN OCCUR THEAREAMUSTBE WELLVENTILATEDANDALLSOURCES OF IGNITION MUST BE INACTIVATED OR REMOVED WARNI...

Page 24: ...24 FOR NATURAL GAS MODELS FOR YOUR SAFETY READ BEFORE OPERATING OPERATING INSTRUCTIONS FOR YOUR SAFETY READ BEFORE OPERATING...

Page 25: ...25 FOR PROPANE GAS MODELS FOR YOUR SAFETY READ BEFORE OPERATING OPERATING INSTRUCTIONS TO TURN OFF GAS TO APPLIANCE...

Page 26: ...hority The water temperature is controlled by a thermostat Fig 3 which has two sensing elements One sensor is located near the top of the tank and the other is near the center The thermostat is set in...

Page 27: ...combustion PREVENTIVE MAINTENANCE CHECK THE PILOT At least once a year check the pilot burner fig 15 and the main burner fig 16 for proper operation Refer to the following pilot and main burner sectio...

Page 28: ...a pressure gauge or a manometer to the gauge port and refer to Table 5 for correct manifold pressure 2 Use this formula to clock the meter Be sure that other gas consuming appliances are not operating...

Page 29: ...ther information contact your dealer ANODE ROD INSPECTION The heater tank is equipped with anode rods to provide corrosion control At least once a year the anode rods should be checked to determine if...

Page 30: ...g screws securely 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 To dissol...

Page 31: ...xt trial for ignition check gas supply pilot burner spark and flame sense wiring flame rod contaminated or out of position burner ground connection 3 Recycle Flame failed during run Initiate new trial...

Page 32: ...n fuse or circuit breaker 5 Disconnect switch off 6 Harness not plugged into appliance receptacle A FLUE DAMPER OPEN OR OPENING Unit is calling for heat and damper disc should be in vertical position...

Page 33: ...s slower Call service agent Check gas input If incorrect adjust gas pressure or replace main burner orifice Draft hood not installed or Call service agent Install draft hood or baffles as one or more...

Page 34: ...so 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 limited...

Page 35: ...35 NOTES...

Page 36: ...36 Copyright 2011 Lochinvar LLC All rights reserved 300 Maddox Simpson Parkway Lebanon TN 37090 Phone 615 889 8900 Fax 615 547 1000 Technical Service email 2tech lochinvar com www Lochinvar com...

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