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9

FEATURES AND COMPONENTS

Figure 4. Surface Mount Control Models

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Содержание 120 series

Страница 1: ...CE MAINTENANCE LIMITED WARRANTY Instruction Manual PRINTED 0917 OPTIONAL Thank you for buying this energy efficient water heater We appreciate your confidence in our products PLACE THESE INSTRUCTIONS...

Страница 2: ...situation which if not avoided could result in minor or moderate injury CAUTION CAUTION indicates a potentially hazardous situation which if not avoided could result in minor or moderate injury All sa...

Страница 3: ...be run with the circuit conductors and connected to the equipment grounding terminal or lead on the water heater HYDROGEN GAS FLAMMABLE Hydrogen gas can be produced in a hot water system served by thi...

Страница 4: ...ING DIAGRAMS 41 PIPING DIAGRAMS 47 MANIFOLD KITS 49 NOTES 50 NOTES 51 SAFE INSTALLATION USE AND SERVICE 2 GENERAL SAFETY INFORMATION 3 Precautions 3 Hydrogen Gas Flammable 3 INTRODUCTION 5 Preparing f...

Страница 5: ...ts of the heater are identified on pages 7 8 The model and rating plate on page 6 interprets certain markings into useful information Both of these references should be used to identify the heater its...

Страница 6: ...51 47 44 18 61 434 246 184 148 123 105 92 82 74 67 61 57 53 24 81 912 328 246 197 164 140 123 109 98 89 82 76 70 27 92 151 369 276 221 184 158 138 123 111 101 92 85 79 30 102 390 410 307 246 205 176...

Страница 7: ...by Underwriters Laboratories Inc MODEL AND RATING LISTED 22U1 No OF WATTS PHASE VOLTS AC ELEMENTS EACH RATED MEASURED WATTS COMMERCIAL STORAGE TANK WATER HEATER MODEL NUMBER SERIAL NUMBER ITEM ID PART...

Страница 8: ...8 FEATURES AND COMPONENTS Figure 3 Electronic Control Models...

Страница 9: ...9 FEATURES AND COMPONENTS Figure 4 Surface Mount Control Models...

Страница 10: ...er should be located in an area where leakage of the tank or connections will not result in damage to the area adjacent to the heater or to lower floors of the structure Close to the point of major ho...

Страница 11: ...imum water temperature at the hot water tap then you must take special precautions In addition to using the lowest possible temperature setting that satisfies your hot water needs a means such as a MI...

Страница 12: ...ly operated at least once a year Caution should be taken to ensure that 1 no one is in front of or around the outlet of the temperature pressure relief valve discharge line and 2 the water manually di...

Страница 13: ...r 30 C multiply the ampacities shown above by the appropriate correction factor to determine the maximum allowable load current Ambient Temp F 1 Not more than three conductors in raceway cable or eart...

Страница 14: ...volt rating Do not substitute fuses of a different rating Sequence of Operation 1 When the control is powered the UIM should display model information water temperature Operating Set Point heating st...

Страница 15: ...15 WIRING DIAGRAMS Figure 8 CCB Central Control Board Control Circuit Diagram Electronic Control Models...

Страница 16: ...he heater circuits and includes wiring diagrams All heater circuits are designed for 60 50 hertz alternating current The water heater circuit wiring is 12 AWG AWM or TEW type rated 600 volts 105 C Fus...

Страница 17: ...es to terminal L2 with red wires 4 Connect incoming power to terminals L1 and L2 CONVERSION TO THREE PHASE When heater is shipped for connection to a single phase electrical service it may be connecte...

Страница 18: ...s the heater circuits and includes wiring diagrams All heater circuits are designed for 60 50 hertz alternating current The water heater circuit wiring is 12 AWG AWM or TEW type rated 600 volts 105 C...

Страница 19: ...Disconnect all red wires from terminal L3 4 Connect all red wires to terminal L2 with yellow wires 5 Connect incoming power to terminals L1 and L2 CONVERSION TO THREE PHASE When heater is shipped for...

Страница 20: ...odels only 4 Turn on the electrical disconnect switch 5 Observe the operation of the electrical components during the first heating cycle Use care as the electrical circuits are energized 6 Close the...

Страница 21: ...ystem THERMOSTAT CONTROLS The water heaters covered in this instruction manual are equipped with adjustable thermostat controls to control water temperature Hot water temperatures required for automat...

Страница 22: ...me periods Helps reduce operating costs during unoccupied or peak demand periods Linear Sequencing Banks of heating elements 3 elements per bank are energized according to adjustable 1 to 20 different...

Страница 23: ...is a call for heat present and the control system has initiated heating operation Heating elements icon for a water heater equipped with 1 Bank of heating elements Each circle repre sents one heating...

Страница 24: ...moni tored water heater functions and components are displayed in this menu Economy Mode Setup Seven day 24 hour time clock with temperature set back capability to reduce operating costs during unoc c...

Страница 25: ...ision of temperature control in the storage tank and at points of use This feature can also be used to compensate for building recirculation loops hot water returning to the storage tank that may caus...

Страница 26: ...relay coil to either circuit ELEMENT BANK ON Displays the on off status of each Bank of heating elements Yes On No Off ALARM CONDITION Displays the status of the user definable Alarm Output function...

Страница 27: ...underneath MENU to enter the Main Menu Notice how the text above the Operational Buttons on the display changes as you navigate through the various menus and screens Use the Up Down buttons to select...

Страница 28: ...changes to ACCEPT CANCEL when the adjustment mode is activated and how the current setting is outlined rather than highlighted in black Press the Operational Button underneath ACCEPT to enter and con...

Страница 29: ...the Up Down and CHANGE buttons to enter the Mon sub menu Use the Up Down buttons to select highlight in black the Normal Operation Between setting Press the Operational Button underneath SELECT to cha...

Страница 30: ...en current tank temperature drops below programmable Alarm SP Fault or Alert Used for external notification whenever a Fault or Alert condition is active Fault Used for notification whenever a Fault c...

Страница 31: ...splays non adjustable operational information The control system records and stores the last 9 Fault and Alert messages in chronological order in this menu The most recent will be at the top of the li...

Страница 32: ...ry default settings have been restored Press the Operational Button underneath BACK to exit the Restore Factory Defaults menu GENERAL Periodically the drain valve should be opened and the water allowe...

Страница 33: ...om water system Check for any leaks and immediately correct any if found 7 Restart the water heater as directed in this manual See the Repair Parts Illustration for anode rod location FLUSHING THE WAT...

Страница 34: ...eans Lime scale dissolvents will not remove these types of scale which are occasionally encountered Call the toll free phone number on the back cover of this Instruction Manual to purchase UN LIME and...

Страница 35: ...are normal however the tank bottom and elements should be cleaned See the Maintenance section of this manual 2 Some of the electrical components of the water heater make sounds which are normal Conta...

Страница 36: ...ll element with new gasket Condensation and dripping may appear on pipes when inlet water temperature is low Pipe fitting may be leaking All water which appears at the heater bottom or on the surround...

Страница 37: ...ELECTRIC 1 UNIT LEGEND TEMPERATURE PRESSURE RELIEF VALVE PRESSURE RELIEF VALVE CIRCULATING PUMP TANK TEMPERATURE CONTROL DRAIN FULL PORT BALL VALVE TEMPERATURE GAGE WATER FLOW SWITCH CHECK VALVE WARNI...

Страница 38: ...hermostat should be set 5 degrees F higher than the Tank Temperature Control COMMERCIAL ELECTRIC 1 UNIT WITH VERTICAL STORAGE TANK LEGEND TEMPERATURE PRESSURE RELIEF VALVE PRESSURE RELIEF VALVE CIRCUL...

Страница 39: ...g thermostat should be set 5 degrees F higher than the Tank Temperature Control COMMERCIAL ELECTRIC 1 UNIT WITH HORIZONTAL STORAGE TANK LEGEND TEMPERATURE PRESSURE RELIEF VALVE PRESSURE RELIEF VALVE C...

Страница 40: ...LEGEND TEMPERATURE PRESSURE RELIEF VALVE PRESSURE RELIEF VALVE CIRCULATING PUMP TANK TEMPERATURE CONTROL DRAIN FULL PORT BALL VALVE TEMPERATURE GAGE WATER FLOW SWITCH CHECK VALVE WARNING THIS DRAWING...

Страница 41: ...5 degrees F higher than the Tank Temperature Control COMMERCIAL ELECTRIC 2 UNITS WITH VERTICAL STORAGE TANK LEGEND TEMPERATURE PRESSURE RELIEF VALVE PRESSURE RELIEF VALVE CIRCULATING PUMP TANK TEMPERA...

Страница 42: ...et 5 degrees F higher than the Tank Temperature Control COMMERCIAL ELECTRIC 2 UNITS WITH HORIZONTAL STORAGE TANK LEGEND TEMPERATURE PRESSURE RELIEF VALVE PRESSURE RELIEF VALVE CIRCULATING PUMP TANK TE...

Страница 43: ...SURE RELIEF VALVE PRESSURE RELIEF VALVE CIRCULATING PUMP TANK TEMPERATURE CONTROL DRAIN FULL PORT BALL VALVE TEMPERATURE GAGE WATER FLOW SWITCH CHECK VALVE WARNING THIS DRAWING SHOWS SUGGESTED PIPING...

Страница 44: ...the Tank Temperature Control COMMERCIAL ELECTRIC 3 UNITS WITH VERTICAL STORAGE TANK LEGEND TEMPERATURE PRESSURE RELIEF VALVE PRESSURE RELIEF VALVE CIRCULATING PUMP TANK TEMPERATURE CONTROL DRAIN FULL...

Страница 45: ...an the Tank Temperature Control COMMERCIAL ELECTRIC 3 UNITS WITH HORIZONTAL STORAGE TANK LEGEND TEMPERATURE PRESSURE RELIEF VALVE PRESSURE RELIEF VALVE CIRCULATING PUMP TANK TEMPERATURE CONTROL DRAIN...

Страница 46: ...RE RELIEF VALVE CIRCULATING PUMP TANK TEMPERATURE CONTROL DRAIN FULL PORT BALL VALVE TEMPERATURE GAGE WATER FLOW SWITCH CHECK VALVE WARNING THIS DRAWING SHOWS SUGGESTED PIPING CONFIGURATION AND OTHER...

Страница 47: ...ntrol COMMERCIAL ELECTRIC 4 UNITS WITH VERTICAL STORAGE TANK LEGEND TEMPERATURE PRESSURE RELIEF VALVE PRESSURE RELIEF VALVE CIRCULATING PUMP TANK TEMPERATURE CONTROL DRAIN FULL PORT BALL VALVE TEMPERA...

Страница 48: ...Control COMMERCIAL ELECTRIC 4 UNITS WITH HORIZONTAL STORAGE TANK LEGEND TEMPERATURE PRESSURE RELIEF VALVE PRESSURE RELIEF VALVE CIRCULATING PUMP TANK TEMPERATURE CONTROL DRAIN FULL PORT BALL VALVE TE...

Страница 49: ...ze 1 1 2 Table 15 Manifold Kits with Three Heaters Tank Capacity Gallons Part Number H W D A 52 100109232 66 1 4 91 3 4 27 1 4 13 1 4 80 100109232 70 1 2 95 1 4 31 1 4 9 3 4 120 100109232 73 1 4 99 1...

Страница 50: ...50 NOTES...

Страница 51: ...51 NOTES...

Страница 52: ...52 www hotwater com Copyright 2017 A O Smith Corporation All rights reserved...

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