A.O. Smith DRE-52 Series Скачать руководство пользователя страница 7 | Manualshive

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fEAturEs And CoMPonEnts

ELECtronIC ControL ModELs

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Содержание DRE-52 Series

Страница 1: ...e reference COMMERCIAL ELECTRIC WATER HEATERS Thank you for buying this energy efficient water heater We appreciate your confidence in our products MODELS DRE 52 80 120 SERIES 100 DVE 52 80 120 SERIES...

Страница 2: ...testing or replacement of gas piping or b the connection installation testing repair or servicing of appliances and equipment that is experienced in such work that is familiar with all precautions req...

Страница 3: ...y may also cause erratic control system operation on ELECTRONIC CONTROL models This water heater must be connected to a grounded metal permanent wiring system or an equipment grounding conductor must...

Страница 4: ...sant Valley Road Cleveland OH 44131 3 If after reading this manual you have any questions or do not understand any portion of the instructions call the toll free number listed on the back cover of thi...

Страница 5: ...221 184 158 138 123 111 101 92 85 79 30 102 390 410 307 246 205 176 154 137 123 112 102 95 88 36 122 868 492 369 295 246 211 184 164 148 134 123 113 105 40 5 138 226 554 418 3332 277 237 208 1185 166...

Страница 6: ...tional Sanitation Foundation NSF 5 requirements 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 N...

Страница 7: ...7 FEATURES AND COMPONENTS ELECTRONIC CONTROL MODELS Figure 2...

Страница 8: ...8 FEATURES AND COMPONENTS SURFACE MOUNT CONTROL MODELS Figure 3...

Страница 9: ...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 hot water usage and the power supply Hot water piping a...

Страница 10: ...hysically developmentally disabled If anyone using hot water in your home fits into one of these groups or if there is a local code or state law requiring a maximum water temperature at the hot water...

Страница 11: ...the building Shall not have any valve or other obstruction between the relief valve and the drain The temperature pressure relief valve must be manually operated at least once a year Caution should be...

Страница 12: ...protection and disconnect switch The water heater should be grounded in accordance with national and local codes Voltage applied to the heater should not vary more than 5 to 10 of the model and rating...

Страница 13: ...element current sensors for monitoring the power circuits Refer to the control circuit label on the water heater for details The CCB is powered by a small 120V 24V transformer The control circuit oper...

Страница 14: ...14 CCB CENTRAL CONTROL BOARD CONTROL CIRCUIT DIAGRAM ELECTRONIC CONTROL MODELS Figure 6 WIRING DIAGRAMS...

Страница 15: ...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 F...

Страница 16: ...to terminal L1 with black wires 3 Reconnect all yellow wires to terminal L2 with red wires 4 Connect incoming power to terminals L1 and L2 CONVERSION TO THREE PHASE When heater is shipped for connect...

Страница 17: ...page 8 The following describes 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 T...

Страница 18: ...nect 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 connection to a single phase electrical service...

Страница 19: ...Models 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 20: ...94 C When the ECO switch contacts open activate the electronic control system locks out and displays a Fault message Voltage to the contactor coils and heating elements is terminated to prevent furthe...

Страница 21: ...djustable 1 to 20 differential set points for each bank First bank on is the last bank off Helps reduce operating costs during low moderate loads CONTROL SYSTEM NAVIGATION The UIM User Interface Modul...

Страница 22: ...control system has initiated heating operation Heating elements icon for a water heater equipped with 1 Bank of heating elements Each circle represents one heating element Each diagonal row of 3 elem...

Страница 23: ...played in this menu Economy Mode Setup Seven day 24 hour time clock with temperature set back capability to reduce operating costs during unoccupied or reduced demand periods Alarm Output Setup The co...

Страница 24: ...g This can improve the precision 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...

Страница 25: ...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 see Alarm Output Setup Menu Yes alarm condition has been m...

Страница 26: ...tional Buttons on the display changes as you navigate through the various menus and screens Use the Up Down buttons to select highlight in black the Economy Mode Setup menu from the Main Menu Press th...

Страница 27: ...ges 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 confirm...

Страница 28: ...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 change...

Страница 29: ...n 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 co...

Страница 30: ...sages in chronological order in this menu The most recent will be at the top of the list A time stamp is displayed below each listed Fault and Alert message showing when the Fault or Alert condition o...

Страница 31: ...Restore Factory Defaults menu General Periodically the drain valve should be opened and the water allowed to run until it flows clean This will help to prevent sediment buildup in the tank bottom Peri...

Страница 32: ...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 33: ...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 heating element gaskets Other sc...

Страница 34: ...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 35: ...ters tank insert Q Tip or similar absorbent material between jacket opening and valve to swab spud area Remove valve if leak is indicated and repair with pipe joint compound Water on the side of the t...

Страница 36: ...any component in the system 3 Service valves are shown for servicing unit However local codes shall govern their usage COMMERCIAL ELECTRIC 1 UNIT LEGEND TEMPERATURE PRESSURE RELIEF VALVE PRESSURE RELI...

Страница 37: ...Control should be wired to and control the pump between the water heater s and the storage tank s 5 The water heater s operating thermostat should be set 5 degrees F higher than the Tank Temperature...

Страница 38: ...re Control should be wired to and control the pump between the water heater s and the storage tank s 5 The water heater s operating thermostat should be set 5 degrees F higher than the Tank Temperatur...

Страница 39: ...the system 3 Service valves are shown for servicing unit However local codes shall govern their usage COMMERCIAL ELECTRIC 2 UNITS LEGEND TEMPERATURE PRESSURE RELIEF VALVE PRESSURE RELIEF VALVE CIRCUL...

Страница 40: ...to and control the pump between the water heater s and the storage tank s 5 The water heater s operating thermostat should be set 5 degrees F higher than the Tank Temperature Control COMMERCIAL ELECT...

Страница 41: ...ed to and control the pump between the water heater s and the storage tank s 5 The water heater s operating thermostat should be set 5 degrees F higher than the Tank Temperature Control COMMERCIAL ELE...

Страница 42: ...lves are shown for servicing unit However local codes shall govern their usage COMMERCIAL ELECTRIC 3 UNITS LEGEND TEMPERATURE PRESSURE RELIEF VALVE PRESSURE RELIEF VALVE CIRCULATING PUMP TANK TEMPERAT...

Страница 43: ...between the water heater s and the storage tank s 5 The water heater s operating thermostat should be set 5 degrees F higher than the Tank Temperature Control COMMERCIAL ELECTRIC 3 UNITS WITH VERTICA...

Страница 44: ...ump between the water heater s and the storage tank s 5 The water heater s operating thermostat should be set 5 degrees F higher than the Tank Temperature Control COMMERCIAL ELECTRIC 3 UNITS WITH HORI...

Страница 45: ...icing unit However local codes shall govern their usage COMMERCIAL ELECTRIC 4 UNITS LEGEND TEMPERATURE PRESSURE RELIEF VALVE PRESSURE RELIEF VALVE CIRCULATING PUMP TANK TEMPERATURE CONTROL DRAIN FULL...

Страница 46: ...er s and the storage tank s 5 The water heater s operating thermostat should be set 5 degrees F higher than the Tank Temperature Control COMMERCIAL ELECTRIC 4 UNITS WITH VERTICAL STORAGE TANK LEGEND T...

Страница 47: ...ater s and the storage tank s 5 The water heater s operating thermostat should be set 5 degrees F higher than the Tank Temperature Control COMMERCIAL ELECTRIC 4 UNITS WITH HORIZONTAL STORAGE TANK LEGE...

Страница 48: ...Inlet and outlet size 1 1 2 THREE HEATERS Tank Capacity Gallons Part Number H W D A 52 9003430205 66 1 4 91 3 4 27 1 4 13 1 4 80 9003430205 70 1 2 95 1 4 31 1 4 9 3 4 120 9003430205 73 1 4 99 1 2 35...

Страница 49: ...49 NOTES...

Страница 50: ...50 NOTES...

Страница 51: ...he owner is responsible for all other costs Such costs may include but are not limited to a Labor charges for service removal repair or reinstallation of the water heater or any component part b Shipp...

Страница 52: ...52 500 Tennessee Waltz Parkway Ashland City TN 37015 Technical Support 800 527 1953 Parts 800 433 2545 Fax 800 644 9306 www hotwater com...

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