A.O. Smith Dura-Power DSE-5 Page 40 Instruction Manual Download

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A DIVISION OF A. O. SMITH CORPORATION

RENTON, WASHINGTON

Technical Support: 800 527-1953

Parts Department: 800 433-2515

www.hotwater.com

Summary of Contents for Dura-Power DSE-5

Page 1: ...future reference COMMERCIAL ELECTRIC WATER HEATERS Thank you for buying this energy efficient water heater We appreciate your confidence in our products MODELS DSE 5 THRU DSE 120 INSTALLATION OPERATI...

Page 2: ...the type of hazard what can happen if you do not follow the safety message and how to avoid the risk of injury The California Safe Drinking Water and Toxic Enforcement Act requires the Governor of Ca...

Page 3: ...perly 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 m...

Page 4: ...use the correct size for the circuit See page 12 through 14 The principal components of the heater are identified on page 6 The model and rating plate on page 7 interprets certain markings into useful...

Page 5: ...480 mm 28 711 2 mm 35 889 mm 7 177 8 mm 354 160 6 120 450 90 63 1 4 1 607 mm 30 762 mm 37 939 8 mm 7 1 2 190 5 mm 420 190 5 RECOVERY RATE IN GALLONS PER HOUR Temperature Rise F STANDARD KW INPUT BTU H...

Page 6: ...AND COMPONENTS Below is an illustration of the water heater with its features called out The text of this manual will refer to the items shown FIGURE 1 UIM USER INTERFACE MODULE on front of hinged ac...

Page 7: ...e heater or to lower floors of the structure 3 The discharge opening of the temperature and pressure relief valve should always be piped to an open drain 4 Close to the point of major hot water usage...

Page 8: ...tisfies your hot water needs a means such as a MIXING VALVE should be used at the hot water taps used by these people or at the water heater MIXING VALVES for reducing point of use temperature are ava...

Page 9: ...d continues to release water immediately close the cold water inlet to the water heater follow the draining instructions in this manual and replace the temperature pressure relief valve with a properl...

Page 10: ...circuits and includes wiring diagrams Control Circuits The water heater is equipped with an electronic control system The system includes a CCB Central Control Board circuit board an immersion tempera...

Page 11: ...actor to determine the maximum allowable load current Ambient Temperature F 82 58 88 75 58 35 90 80 67 52 30 91 82 71 58 41 82 58 88 75 58 35 90 80 67 52 30 91 82 71 58 41 86 104 105 122 123 141 142 1...

Page 12: ...12 WIRING DIAGRAMS WIRING DIAGRAMS DIAGRAM 1 SMALL COMMERCIAL WIRE DIAGRAM 208 240V 3PH DIAGRAM 2 SMALL COMMERCIAL WIRE DIAGRAM 208 240V 3 1PH...

Page 13: ...ust be added according to the phase of the supply voltage See the diagram below For single phase connection jumpers A C and B D must be added For three phase connection jumper B C must be added 3 1 PH...

Page 14: ...14 DIAGRAM 4 SMALL COMMERCIAL WIRE DIAGRAM 300 600V 3PH DIAGRAM 5 SMALL COMMERCIAL ELECTRIC 300 600V 3ph Linear or Progressive...

Page 15: ...the faucet Leave the cold water inlet valve fully open The heater is now ready for start up and temperature regulation 7 Close the cabinet door and perform start up checks listed below before turning...

Page 16: ...duration of exposure The slower response time of children the elderly or disabled persons increases the hazards to them Never allow small children to use a hot water tap or draw their own bath water...

Page 17: ...s as follows on a model equipped with 3 heating elements First heating cycle Elements come on 1 2 3 and cycle off 1 2 3 Second heating cycle Elements come on 2 3 1 and cycle off 2 3 1 Third heating cy...

Page 18: ...ting element This animated icon DOES NOT indicate current has been sensed from the heating elements only that there is a call for heat present and the control system has initiated heating element oper...

Page 19: ...n board SPDT single pole double throw relay contacts for building EMS Energy Management System notification of operational conditions such as Fault Conditions and heating mode status This menu feature...

Page 20: ...ed with 3 heating elements with an Operating Set Point of 120 F and all Differential settings at 2 F the On Off sequencing of heating elements would be as follows TABLE 6 ELEMENT NUMBER DIFFERENTIAL S...

Page 21: ...eratures is not selected use the Up and Down buttons to select this menu item With the Operating Set Point selected highlighted in black in the Temperatures Menu press the Operational Button underneat...

Page 22: ...on the external control per all applicable building codes This is a switching circuit only DO NOT apply any external voltage or connect any load IE relay coil to either circuit Element On Displays the...

Page 23: ...or not Daily Operating Mode Sun Mon Tue Wed Thu Fri Sat Seven daily sub menus are listed at the bottom of the Economy Mode Setup menu There are 3 Operating Modes in each sub menu Normal Operation All...

Page 24: ...ss the Operational Button underneath CHANGE to activate the adjustment mode for the Setpoint Adjustment value Use the Up Down buttons to change the Setpoint Adjustment to the desired value The Setpoin...

Page 25: ...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...

Page 26: ...E buttons to enter the Mon sub menu as described above Use the Up Down buttons to select highlight in black the Normal Operation Between setting Press the Operational Button underneath SELECT to chang...

Page 27: ...l notification when 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 w...

Page 28: ...menu displays 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 o...

Page 29: ...actory Defaults ACTION DISPLAY From the Main Menu use the Up Down buttons to select highlight in black the Restore Factory Defaults menu Press the Operational Button underneath SELECT The Restore Fact...

Page 30: ...If after manually operating the valve it fails to completely reset and continues to release water immediately close the cold water inlet to the water heater follow the draining instructions in the Sta...

Page 31: ...e removal Place limed ends of heating elements into UN LIME delimer and allow scale to dissolve Do not permit delimer or water to contact heating element electrical terminals Silicates sulfates and al...

Page 32: ...nge Sounds 1 Sediment or lime scale accumulations on the elements causes sizzling and hissing noises when the heater is operating The sounds are normal however the tank bottom and elements should be c...

Page 33: ...33 PIPING DIAGRAMS ONE OR TWO TEMPERATURE TWO HEATER ONE OR TWO TEMPERATURE ONE HEATER PIPE TO OPEN DRAIN INSTALL IN ACCORDANCE WITH ALL LOCAL CODES...

Page 34: ...34 ONE OR TWO TEMPERATURE THREE HEATERS ONE OR TWO TEMPERATURE FOUR HEATERS PIPE TO OPEN DRAIN INSTALL IN ACCORDANCE WITH ALL LOCAL CODES...

Page 35: ...AL STORAGE TANK MEDIUM TEMPERATURE ONE HEATER VERTICAL STORAGE TANK PIPE RELIEF VALVE TO OPEN DRAIN TANK TEMPERATURE CONTROL SET AT DESIRED TEMPERATURE MAX 170 HEATERTHERMOSTAT SET AT LEAST 5 HIGHER I...

Page 36: ...IEF VALVE TO OPEN DRAIN TANK TEMPERATURE CONTROL SET AT DESIRED TEMPERATURE MAX 170 HEATER THERMOSTAT SET AT LEAST 5 HIGHER INSTALL IN ACCORDANCE WITH ALL LOCAL CODES NOTE BRANCH PIPING TO ALL HEATERS...

Page 37: ...SET AT DESIRED TEMPERATURE MAX 170 HEATER THERMOSTAT SET AT LEAST 5 HIGHER INSTALL IN ACCORDANCE WITH ALL LOCAL CODES NOTE BRANCH PIPING TO ALL HEATERS MUST BE SAME SIZE AND LENGTH FOR EQUAL FLOW THES...

Page 38: ...ET AT DESIRED TEMPERATURE MAX 170 HEATER THERMOSTAT SET AT LEAST 5 HIGHER INSTALL IN ACCORDANCE WITH ALL LOCAL CODES NOTE BRANCH PIPING TO ALL HEATERS MUST BE SAME SIZE AND LENGTH FOR EQUAL FLOW THESE...

Page 39: ...rovide only a replacement water heater or part thereof The owner is responsible for all other costs Such costs may include but are not limited to a Labor charges for service removal repair or reinstal...

Page 40: ...A DIVISION OF A O SMITH CORPORATION RENTON WASHINGTON Technical Support 800 527 1953 Parts Department 800 433 2515 www hotwater com...

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