Lochinvar 1 service manual Night Setback Parameters Screen

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Service Manual

1 Service

Night Setback Parameters Screen:

The Night Setback Screen allows access to 15 parameters. Those parameters are as follows:

•Date and Time - 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 boiler is first installed or any time the boiler has been powered off for more than 30 days.

To set the clock, press the SELECT button in the upper right- hand corner of the display. The date and time are displayed as “Day dd/mm/yy hh:mm”. Day = day of the week (1 = Monday, 2 = Tuesday, etc.), dd = date, mm = month, yy = year, hh = hour, mm = minutes (24 hours time; 2:30 PM = 14:30). Using the keypad, adjust the date and time by working from left to right. If a digit has been entered incorrectly, press the left arrow key on the keypad to back the digit up. If a change is not necessary, press the BACK button to return to the Parameter List Screen. Once the correct date and time have been entered press the OK button on the display to program the date and time into memory and return to the Parameter List Screen.

The internal clock does not adjust for Daylight Savings Time and therefore, will require a manual adjustment.

•On Timer and Off Timer - If the parameter night setback set point is set to anything other than 32°F, the night setback feature becomes active. This will require on and off times to be programmed for the days that reduced temperatures are required. Each day of the week (Monday through Sunday) will have an on and off time.

Example: Monday ON: 22:30, Tuesday OFF: 6:45. If you wish to skip a day and no night setback is necessary, program the on and off times the same and set them prior to 12:00 (noon). If you wish to keep night setback active throughout an entire day, program the on and off times the same and set them after 12:00 (noon). The default times for each day will be on at 18:00 and off at 8:00.

To adjust the on and off times, select the parameter to be adjusted by pressing the SELECT button next to the parameter. Using the keypad, adjust the time by working from left to right. If a digit has been entered incorrectly, press the left arrow key on the keypad to back the digit up. If no change is necessary, press the BACK button to return to the Parameter List Screen. Once the correct time has been entered press the OK button on the display to program the time into memory and return to the Parameter List Screen.

Reference page 21 for information regarding NSB Set Point Temp programming.

Apply button - If changes have been made to the date and time or to one of the on or off timers, the APPLY button must be pressed to program the changes into the control module and return to the Setup Screen.

Back button - Pressing this button will back the screen up to the previous screen.

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Contents Models 1.0, 1.3, Contents Handling ceramic fiber materials Niosh stated First AidService MaintenanceTroubleshooting Service Near boiler pipingSync display Control inputs BoardSecondary Smart Touch Control Module Primary Control outputsGeneral Operation How the boiler operatesHow the control module operates Sequence of operationSequence of operation Sequence of operation space heating and HWThis table lists the parameters and where to access them Parameter tableOutdoor Reset Viewable and changeable control parameters Status ScreenService Details Screen Service Main Screen Setup Screen Service/Setup Parameters Screen Service Set Point Parameters Screen Outdoor Reset Parameters Screen Service Night Setback Parameters Screen Cascade Parameters Screen Cascade OperationPumps Parameters Screen 10Vdc BMS Parameters Screen 10Vdc OperationService Cascade Screen Service Temps Screen Burners Screen Graph Select Screen History Screen Service Mode Screen Maintenance Maintenance and annual startup Address reported problems Clean condensate trapInspect boiler area Inspect boiler interiorFlue vent system and air piping Check water systemCheck expansion tank Check boiler relief valve Check ignition ground wiring Check all boiler wiringCheck control settings Inspect ignition and flame sense electrodesCheck flame signal Cleaning boiler heat exchangerReview with owner Test procedure Test low water flow conditionsTroubleshooting Alarm ScreenBefore troubleshooting Check the followingCheck control module fuses No Display No BurnerOperation Unit DoesChecking temperature sensors Temperature ResistanceNoisy No PumpOperation Boiler Pump System PumpFlow Switch CondensateDrain Blocked Flame outLight cont’d Flame LostWhile Running Troubleshooting Automatic Reset High Limit / HEXTemp SW Blower RPM’sLouver Proving Switch Too HighSensor Open Sensor ShortedResets Try Later Air Flow TooLow Flap ValveInternal Fault No Error StoredWriting to MemosCombustion Analysis Procedure Gas Valve AdjustmentOr Obstruction Gas Supply PressureGas valve adjustment procedure ModelModels 1.3
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1 specifications

Lochinvar 1 is a remarkable achievement in the realm of modern technology and engineering. As a powerful and efficient water heater, it has been designed to cater to a wide range of residential and commercial needs. One of the standout features of Lochinvar 1 is its advanced heating technology, which incorporates a high-efficiency condensing design. This technology allows the unit to achieve impressive energy savings by maximizing heat transfer while minimizing energy consumption.

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