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watEr hEatEr status MEnu

This menu displays non adjustable operational information. Use the 

Up & Down Buttons to navigate to the bottom of this menu.

top of Menu

Bottom of Menu

status

Displays  the  current  Operating  State  of  the  control  system.  IE: 

Heating, Standby, Fault.

Elements on #

Displays  the  number  of  heating  elements  the  control  system  has 

energized.

ECo Contact

Displays the current state of the ECO high temperature limit switch 

contacts.

Enable / disable 1 & 2

Displays the current state, open or closed, of the two Enable/Disable 

circuits  (J7  socket  on  the  CCB  -  see  wiring  diagrams  on  page  6) 

provided  for  external  supervisory  controls  such  as  building  EMS 

(Energy Management System). Both of these Enable/Disable circuits 

must be closed to “enable” heating operation. If either Enable/Disable 

circuit is open for any reason heating operation will be “disabled.” 

There is a plug with two jumper wires installed from the factory in the 

CCB J7 socket to enable heating operation when external controls 

are not in use.

Service Note:

 If a supervisory control(s) is used to enable/disable 

heating  operation,  install  field  wiring  between  the  J7  socket  on 

the CCB and a set of “dry contacts” 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 on/off status of each heating element. Yes = On, No = 

Off.

tank full

Displays the status of the optional LWCO (Low Water Cut Off) device. 

Yes = water level is acceptable, No = water level is low.

alarm Condition

Displays the status of the user definable Alarm Output function - see 

Alarm Output Setup Menu. Yes = alarm condition has been met, No 

= alarm condition has not been met.

alarm relay output

Displays  the  state  of  the  normally  open  contacts  of  the Alarm 

Output  relay.  This  relay  (J3  contacts  on  the  CCB  -  see  wiring 

diagrams)  is  used  for  building  EMS  (Energy  Management 

System)  notification  of  operational  conditions  such  as  Fault 

conditions.

EConoMy ModE sEtup MEnu

This  menu  contains  settings  used  to  establish  an  “Economy  Set 

Point” and “Economy Mode” operating periods. This control system 

feature can help reduce operating costs during unoccupied, low load, 

or peak demand periods.

desktop screen during Economy Mode

Economy Mode setup Menu

setpoint adjustment 

Adjustable  user  setting  (2°F  to  50°F  -  factory  default  is 

20°F)  the  control  system  uses  to  calculate  the  “Economy 

Set Point.” The Economy Set Point = normal Operating Set 

Point  minus  the  programmed  Setpoint  Adjustment  value. 

Содержание DHE200 THRU 10

Страница 1: ...Manual place these instructions adjacent to heater and notify owner to keep for future reference COMMERCIAL ELECTRIC WATER HEATER MODELS DVE 150 THRU DVE 10000 DHE 200 THRU DVE 10000 UP TO 150KW A DI...

Страница 2: ...about 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...

Страница 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...

Страница 4: ...DIAGRAMS Be sure to turn off power when working on or near the electrical system of the water heater Never touch electrical components with wet hands or when standing in water When replacing fuses al...

Страница 5: ...ter 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 tem...

Страница 6: ...C1 C5 C4 C3 C2 C1 N GRN GRN BLK BLK X FMR ECO TEMP 120V BLK BLU RED RED RED RED SDI 24V X FMR PRIMARY FUSES X FMR 120V SEC SEC FUSE PILOT SWITCH BLK BLK JUMPER TO DISPLAY LWCO 5 4 3 2 1 FUSES CNTCTR...

Страница 7: ...m Never allow small children to use a hot water tap or draw their own bath water Never leave a child or disabled person unattended in a bathtub or shower The water heater should be located in an area...

Страница 8: ...irectly above each button on the LCD screen The function will change depending on what menu is currently displayed or what menu item is selected When no text appears on the LCD screen above an Operati...

Страница 9: ...used the fault is corrected Power to the water heater must be cycled off and on to reset the control system Note cycling power will not reset the control system if the condition that caused the fault...

Страница 10: ...peration total heating cycle time heating cycle count heating element s cycle count and on time along with UIM and CCB software revisions can be viewed in this menu Current Fault Alert Displays any cu...

Страница 11: ...d 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 ELEMENT NUMBER DIFFERENTIAL SETTING TU...

Страница 12: ...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...

Страница 13: ...ontacts 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 Disp...

Страница 14: ...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...

Страница 15: ...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...

Страница 16: ...s 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 th...

Страница 17: ...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...

Страница 18: ...ternal 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 notificat...

Страница 19: ...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...

Страница 20: ...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...

Страница 21: ...e sounds are normal however the tank bottom and elements should be cleaned Refer to MAINTENANCE section of this manual for details 2 Some of the electrical components of the water heater make sounds w...

Страница 22: ...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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