Lochinvar 150 - 500 Viewable and changeable control parameters, Not used Data logging

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Service Manual

1Service (continued)

Viewable and changeable control parameters

CAUTION

Before changing parameters, note the

settings so that the unit can be returned to

 

its original operating parameters.

A: General

Boiler model

The control will display “Armor Heater” as the model number because the same control is used on several models. This will be displayed when parameter A1 has been accessed. This parameter is not changeable.

User code

The User Code allows the user to access and change a limited number of control parameters. The access code can be changed by the user or the installer to a code of their choosing. To change the code, parameter A2 must be accessed. The default code is 0704. The code can be changed one digit at a time by using the arrow keys on the display.

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 water heater is first installed or anytime the water heater has been powered off for more than 30 days. To set the clock, parameter A3 must be accessed. The date and time are displayed as “YY:MM:DD W hh:mm”. YY = year, MM = month, DD = date, W = day (1 = Sunday, 2 = Monday, etc.), hh = hour (24 hour time; 2:00 PM = 14:00), mm = minutes.

NOTICE

The internal clock does not adjust for

Daylight Savings Time and therefore,

 

 

will require a manual adjustment.

Software version

The software version allows the user to view the software version in use by the control. This software controls the operation of the water heater. When a new software version becomes available, the existing control can be replaced with a new control to update the software.

Temperature units

The control can be configured to display temperature in either °C or °F. This parameter can be changed by the user or the installer by accessing parameter A5. The default is °F.

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. This parameter can be changed by the user or the installer by accessing parameter A6. The temperature range for this parameter is 32°F to 140°F. The feature is turned off with a setting of 32°F. The default value is 32°F.

Night setback times

If parameter A6 is set to anything other than 32°F, the night setback feature becomes active. This will require start and stop times to be programmed for the days that reduced temperatures are required. These times can be changed by the user or the installer by accessing parameter A7. Each day of the week (Sunday through Saturday) will have an on and off time.

Example: Monday ON: 22:30, Tuesday OFF: 6:45. If you wish to skip a day and have no night setback, leave the on and off times the same. The default times for each day will be 00:00 (midnight).

B:Not used

C:Data logging

Total hrs. run

The total hrs. run parameter shows the total number of hours the water heater has been in the DHW firing position. This parameter can be viewed by the user and the installer by accessing parameter C1.

Ignition attempts

The ignition attempts parameter shows the total number of times the water heater has attempted to fire. This parameter can be viewed by the user and the installer by accessing parameter C2.

Show last 10 errors

The control will log the 10 most current errors with the date and time the error occurred. This parameter can be viewed by the user and the installer by accessing parameter C3.

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Contents Models 150 Contents Handling ceramic fiber materials Please read before proceedingNiosh stated First Aid Service What is in this manual?Maintenance TroubleshootingArmor water heater display ServiceControl inputs Control outputs How the water heater operates General OperationSequence of operation Saving parametersSequence of operation Use this procedure to access menus from the display panel Display panel menu accessButton Operation Display Comments Display panel parameter accessWHR Parameter tableNot used Data logging Viewable and changeable control parametersFunctions WHR settingsNot used Control modes Circulation pumps Service NotificationService technician Maintenance Maintenance and annual startupOwner maintenance Maintenance Check water system Flue vent system and air pipingCheck expansion tank Check water heater relief valveCheck all water heater wiring Check ignition ground wiringCheck control settings Perform start-up and checksCleaning water heater heat exchanger Check flame signalReview with owner Oiled bearing circulatorsBefore troubleshooting TroubleshootingCheck control module fuses Check the followingNo Burner No DisplayOperation Unit Does NotTemperature F Resistance Ω Checking temperature sensorsNo Pump Noisy OperationRelief Valve OpeningFlame Flow SwitchSequence GV/RelayNo Flame Ign Running No FlameHigh Limit Manual ResetFan Low Fan Speed LowFan Speed High Fan HighSensor Open Sensor ShortedParameters Rem Ctrl FltProgr Watch Dog Error Service BlkNo Error Stored Low 24 VACGas Valve Adjustment Combustion Analysis ProcedureOr Obstruction Gas Supply PressureModels 150 Gas valve adjustment procedureModel Page

150 - 500 specifications

Lochinvar has established itself as a leader in the field of hydronic heating solutions, and the Lochinvar 150 - 500 series is a prime example of its commitment to innovation and efficiency. Designed primarily for commercial applications, this line of high-efficiency boilers is engineered to provide optimized performance, reliability, and cost-effectiveness.

One of the standout features of the Lochinvar 150 - 500 series is its robust construction. Built with a durable stainless-steel heat exchanger, these boilers offer superior resistance to corrosion, ensuring a longer lifespan and consistent performance over time. The advanced design of the heat exchanger also maximizes heat transfer, contributing to higher efficiency ratings.

In terms of technology, the Lochinvar 150 - 500 series incorporates the Concentric Venting System, which allows for flexible installation options and reduces the overall footprint required for the boiler setup. This system is particularly advantageous in commercial settings where space can be limited. The boilers are equipped with smart controls that provide real-time monitoring and diagnostics, allowing for easier maintenance and reducing downtime.

The series features a comprehensive modulation range, allowing the boilers to adjust their output based on the heating demand. This capability not only enhances efficiency but also lowers energy consumption, making it an eco-friendly choice for businesses seeking to reduce their environmental impact. The Lochinvar 150 - 500 boilers utilize innovative combustion technologies, including an integrated burner that ensures optimal combustion efficiency and reduced emissions.

Safety is a priority with the Lochinvar 150 - 500 series, which includes multiple safety features such as lockout protection, pressure switches, and high-temperature limit controls. These measures ensure that the unit operates safely under varying conditions, providing peace of mind for operators.

Additionally, the compact design of the Lochinvar 150 - 500 series allows for easy transportation and installation. Its lightweight structure enables it to be maneuvered through tight spaces typically found in commercial buildings, making it a versatile option for installers.

In summary, the Lochinvar 150 - 500 series is an excellent choice for anyone seeking a reliable, efficient, and technologically advanced boiler solution. With its durable construction, advanced features, and commitment to safety and efficiency, this series stands out as a trusted option in the competitive market of hydronic heating systems.
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