background image

19

Bottom of Menu

Elapsed time 

Total accumulated time the control system (water heater) has been 

energized.

total heating time

Total accumulated time the control system has been in the heating 

mode. IE: any heating elements have been energized.

Element # Cycles

Total  accumulated  count  of  heating  cycles  for  each  heating 

element.

Element # on time

Total accumulated heating on time for each heating element.

CCB Version

Software version for Central Control Board.

uIM Version

Software version for User Interface Module

CurrEnt fault / alErt MEnu

This menu displays non adjustable operational information. With the 

Fault History sub menu selected in Main Menu; press the Operational 

Button  underneath “SELECT” to display the current Fault or Alert 

message.  If  there  is  not  a  Fault  or Alert  condition  currently  active 

“(none)” is displayed to the right of this menu.

Main Menu - Current fault selected

fault hIstory MEnu

This  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 of the list. A time stamp is displayed below each 

listed  Fault  and Alert  message  showing  when  the  Fault  or Alert 

condition occurred.

The Fault History is useful when dealing with intermittent operational 

problems or when the customer has reset the control system prior to 

a service agent’s arrival.

With  a  Fault  or  Alert  item  selected  press  the  Operational  Button 

underneath  “VIEW”  to  display  the  details  for  the  Fault  or  Alert 

message. The Fault/Alert message screen displays a brief description 

of  the  condition,  contact  information  and  access  to  the Advanced 

service information sub menu.

fault history Menu

Current/history fault Message

fault oCCurrEnCE MEnu

Total  accumulated  number  each  individual  Fault  condition  has 

occurred  is  displayed  in  this  menu.  This  running  total  of  Fault 

Occurrences can be useful in determining which (if any) operational 

problems have been persistent.

fault occurrence Menu

Summary of Contents for DHE200 THRU 10

Page 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...

Page 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...

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: ...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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 22: ...A DIVISION OF A O SMITH CORPORATION RENTON WASHINGTON Technical Support 800 527 1953 Parts Department 800 433 2515 www hotwater com...

Reviews: