background image

 

Press the Next ► arrow key on the SMART SYSTEM display to access Screen 5. 

5

 

WHR CFH: OFF

 

The  control  has  not  received  a  call  for  heat  from  a  tank  thermostat  or 
tank sensor. 

ON

 

The control has received a call for heat from a tank thermostat or tank 
sensor. 

WHR PUMP: OFF

 

The control has not received a DHW call for heat and has not powered 
the primary pump. 

ON

 

The  control  has  received  a  DHW  call  for  heat  and  has  powered  the 
primary pump. 

DELAY

 

The  DHW  call  for  heat  has  been  satisfied  and  the  primary  pump  is 
running for a fixed time to remove any residual heat. 

Press the Next ► arrow key on the SMART SYSTEM display to access Screen 6. 

6

 

NOT USED: N/A

 

Not used. 

0-10V IN: **.VDC

 

The  control  will  display  a  0-10Vdc  signal  received  from  a  Building 
Management System (BMS) connected to the unit. 

Press the Next ► arrow key on the SMART SYSTEM display to access Screen 7. 

7

 

Cas: Off 

The Master control has been turned off by the 

Enter/Reset 

button on the 

Smart System display. 

Cas: Standby 

The Master water heater has not received a call for heat from a remote 
thermostat. 

Cas: 61.4C (65) 

The Cascade is now active.  The system temperature will be displayed.  
The Cascade set point will be displayed in brackets. 

Cas: Setpoint Met 

The  Cascade  has  met  the  water  temperature  set  point,  but  is  still 
receiving a call for heat from a tank sensor. 

Cas: No Members 

The Master control could not detect any Member controls to participate 
in the Cascade. 

PMP: Off 

The Master control has not received a call for heat from a tank sensor 
and has not powered the primary pump. 

PMP: On 

The Master control has received a call for heat from a remote thermostat 
and has powered the system pump. 

PMP: Delay 

The tank call for heat has been satisfied and the tank pump is running for 
a fixed time to remove any residual heat. 

Press the Next ► arrow key on the SMART SYSTEM display to access Screen 8. 

8

 

Cas Pow: ***% ***% 

The first percentage shows the firing rate that is being sent to the last 
water heater called on.  The second percentage shows the total power 
available to the Cascade. 

Present: 01234567 
 

Example: 

 
Present: 23----01 

Shows  the  number  of  water  heaters  connected  to  the  Cascade.    The 
Master is designated as 0.  Members will be designated 1 - 7.  If a “-“ is 
used in place of a number, that water heater is either not connected, or 
in a lockout mode and not available for the Cascade.  If the number is 
flashing, then that water heater is providing heat to the Cascade.  As the 
lead  water  heater  is  changed  from  day  to  day,  that  water  heater’s 
address  will  be  shown  first  in  the  string  of  numbers.    In  the  example, 
water  heaters  0  -  3  are  present  and  water  heater  2  is  the  lead  water 
heater. 

Press the  Next ► arrow key on the SMART SYSTEM display to roll back to Screen 1.  At any point  if you wish to 
access an earlier screen, press the Previous ◄ arrow key on the SMART SYSTEM display. 

 

 

 

Summary of Contents for EKW115CE

Page 1: ...EcoKnight range High Efficiency Gas Fired Condensing Water Heaters User SMART SYSTEM Control Guide Models EKW45CE EKW60CE EKW85CE EKW115CE EKW145CE EKW175CE EKW205CE EKW235CE INS0012 Issue No 5 August 2011 ...

Page 2: ...CONTROL PANEL 5 2 3 SEQUENCE OF OPERATION 6 2 4 STATUS DISPLAY SCREENS 7 3 0 USER SETTINGS 9 3 1 GENERAL 9 3 2 ENTERING THE USER CODE 9 3 3 MENU SET A GENERAL SETTINGS 9 3 3 1 WATER HEATER MODEL 9 3 3 2 USER CODE 9 3 3 3 TIME DATE 10 3 3 4 SOFTWARE VERSION 10 3 3 5 TEMPERATURE UNITS 10 3 3 6 NIGHT SETBACK TEMPERATURE 10 3 3 7 NIGHT SETBACK TIME 10 3 4 MENU SET C DATA LOGGING 11 3 4 1 TOTAL HRS RUN...

Page 3: ...ROCEDURE FOR SHUTTING DOWN To take the appliance out of service the Enter Reset button should be pressed If the appliance in to be shut down for a long period of time the power supply should be isolated using the rocker switch on the back and the gas supply should be isolated at the gas inlet appliance isolating valve 1 4 TEMPERATURE ADJUSTMENT PROCEDURE The setpoint can be adjusted using the Up a...

Page 4: ...UPPLY When installed as a conventionally flued appliance the room in which the appliance is installed must be ventilated Blocking these air vents may lead to severe injury serious property damage or death The area in which the appliance is installed should not be used to store any other materials 1 8 CONDENSATE DRAIN The condensate drain must not be blocked or modified in any way If fitted with a ...

Page 5: ...ROL 2 1 GENERAL The Lochinvar EcoKnight uses the SMART SYSTEM control interface The control panel display gives information on set up system status and diagnostic data in words rather than codes 2 2 SMART SYSTEM CONTROL PANEL ...

Page 6: ...cle is complete and the blocked drain and auto reset high limit are closed the control starts the 5 second trial for ignition by sending spark voltage to the spark electrode and opening the gas valve WHR IGNITION OUT 61 5C 65 5 If the control does not detect flame by the end of the trial for ignition the control performs a 10 second postpurge On the EKW45CE to EKW115CE models the control will perf...

Page 7: ... the unit to fire at 100 of rate for the purpose of combustion analysis OUT C The outlet temperature is displayed OPEN The control does not detect the outlet sensor SHORTED The outlet sensor wires or the sensor itself has become shorted Press the Next arrow key on the SMART SYSTEM display to access Screen 2 2 IN C If a tank sensor is installed only the inlet temperature will be displayed C When a ...

Page 8: ... a tank sensor Cas No Members The Master control could not detect any Member controls to participate in the Cascade PMP Off The Master control has not received a call for heat from a tank sensor and has not powered the primary pump PMP On The Master control has received a call for heat from a remote thermostat and has powered the system pump PMP Delay The tank call for heat has been satisfied and ...

Page 9: ... 7 times The display should now show Enter Menu Code 0704 6 Press the Enter Reset button The display should now show Enter Menu Code USER CODE 3 3 MENU SET A GENERAL SETTINGS After 2 seconds the screen will show A General B N A Pressing the Enter Reset button will access the General menu set From here the following sub sections can be accessed by moving the caret symbol to the appropriate line usi...

Page 10: ...tore the desired setting 3 3 6 NIGHT SETBACK TEMPERATURE Once the internal clock has been set correctly the night setback feature can be used to program a lower water temperature set point for water heating This feature is only used when a tank sensor is used The temperature range for this parameter is 0 C to 60 c The feature is turned off with a setting of 0 C The default value is 0 C To modify t...

Page 11: ... setpoint of the water heater to be adjusted when a flow temperature sensor is not used Lochinvar Limited recommends that a flow sensor is always used with this appliance The setpoint should be adjusted to ensure that the water is stored at 60 C and distributed at 50 C within 1 one minute at all outlets Care is needed to avoid much higher temperatures because of the risk of scalding At 50 C the ri...

Page 12: ......

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