Lochinvar EcoKnight EKW45CE User & Smart System Control Manual
High efficiency gas fired condensing water heaters ecoknight series
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Summary of Contents for Lochinvar EcoKnight EKW45CE
- Page 1 The 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...
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Page 2: Table Of Contents
USER GUIDE ................................................3 GENERAL REQUIREMENTS ........................................... 3 PROCEDURE FOR LIGHTING ........................................3 PROCEDURE FOR SHUTTING DOWN ......................................3 TEMPERATURE ADJUSTMENT PROCEDURE ..................................... 3 MAINTENANCE ..............................................3 FROST PROTECTION ............................................. 4 AIR SUPPLY ..............................................4 CONDENSATE DRAIN ............................................. 4 SMART SYSTEM CONTROL ..........................................5 GENERAL ................................................. -
Page 3: User Guide
As the gas inlet appliance isolating valve is closed, the controls should go to a flame failure condition after four ignition attempts (EKW45CE – EKW115CE) or one ignition attempt (EKW145CE – EKW235CE). If the above occurs correctly, open the gas inlet appliance isolating valve and reset the unit by depressing the Enter/Reset button on the control panel. -
Page 4: Frost Protection
FROST PROTECTION If the temperature of the water at the inlet side of the heat exchanger drops below 7C, the primary pump will be energised. If the temperature of the water at the inlet side of the heat exchanger drops further and reaches 3C the burner will fire. -
Page 5: Smart System Control
SMART SYSTEM CONTROL 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. SMART SYSTEM CONTROL PANEL... -
Page 6: Sequence Of Operation
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 perform another prepurge and will try to WHR: POSTPURGE, PREPURGE light the burner again. -
Page 7: Status Display Screens
STATUS DISPLAY SCREENS Status Display Screens By using the Previous/Next (◄, ►) arrow keys on the SMART SYSTEM display panel, you can navigate through the six (6) display screens. Each screen will contain two (2) viewable items. The following is a description of the individual items and what they can display: Screen Display shows:... - Page 8 Press the Next ► arrow key on the SMART SYSTEM display to access Screen 5. The control has not received a call for heat from a tank thermostat or WHR CFH: OFF tank sensor. The control has received a call for heat from a tank thermostat or tank sensor.
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Page 9: User Settings
USER SETTINGS GENERAL Certain functions within the boiler are changeable by the user but are password protected to prevent accidental modification. What follows is a guide showing how to access the functions and modify them. ENTERING THE USER CODE To access the user control the following procedure should be followed: If the heater is operating, press the Enter/Reset button to turn the unit off. -
Page 10: Time & Date
3.3.3 TIME & DATE The control uses an internal clock for the night setback feature and for logging of events. For these features to work correctly, the clock must be set when the water heater is first installed or anytime the water heater has been powered off for more than 30 days. -
Page 11: Menu Set C: Data Logging
The Tank Setpoint parameter allows the 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.
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