Lochinvar 1 service manual Cascade Screen

Page 29

Service Manual

1 Service (continued)

Cascade Screen:

The Cascade Screen provides the status of the cascade system. Items that can be viewed on the Cascade Screen are as follows:

Boiler Power Level Indicators - For each boiler present in the cascade a power level indicator will be present above its corresponding number. The level will rise and fall indicating the approximate power level of the boiler. The display box underneath each number will display “HW” when that boiler is providing heat for a Hot Water Generation call.

On Timer and Off Timer - The ON and OFF timers are used to force each boiler in the cascade to have a minimum on and off time to prevent short cycling.

Block Switch On Timer - Whenever a boiler is commanded to start, the block switch on timer is started. This provides a delay between the first ignition system and the second ignition system inside the boiler. Once the second ignition system is started, the timer is reset and the next boiler is prevented from starting until the timer times out. This process is repeated for each boiler in the cascade.

Demand - Shows the status of the cascade. Displayed items are:

No Demand - the Cascade leader has not received a system heat call.

SH Demand - the Cascade leader has received a system heat call.

Set Point Met - the system temperature has met the

User Set Point + the Off Differential.

Pump Delay - the cascade has satisfied a system heat call and the system pump is running for a fixed time.

System Temperature - This is the water temperature as measured by the system sensor located in the system supply piping.

SH Set Point - This is the set point of the cascade system. The boiler designated as the Leader will use this set point to determine the power level required to bring the system temperature to this point. A default value of 50°F (10°C) is displayed when the SH Call for Heat is inactive.

Time - The time is displayed in the upper right-hand corner of the display. It is displayed in 24 hour format. Reference the night setback parameters on page 24 for information regarding adjusting the date and time.

Status button - Pressing this button displays the Status Screen. This screens shows the current status of the SYNC boiler. Reference the Status Screen on page 13 for more information regarding this screen.

Main button - Pressing this button displays the Main Screen. From this screen, navigation to eight (8) other screens is possible. Reference the Main Screen on page 17 for more information regarding this screen.

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Contents Models 1.0, 1.3, Contents Niosh stated First Aid Handling ceramic fiber materialsTroubleshooting ServiceMaintenance Near boiler piping ServiceSync display Board Control inputsControl outputs Secondary Smart Touch Control Module PrimaryHow the boiler operates General OperationHow the control module operates Sequence of operationSequence of operation space heating and HW Sequence of operationParameter table This table lists the parameters and where to access themOutdoor Reset Status Screen Viewable and changeable control parametersService 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 Operation Cascade Parameters ScreenPumps Parameters Screen 10Vdc Operation 10Vdc BMS Parameters ScreenService Cascade Screen Service Temps Screen Burners Screen Graph Select Screen History Screen Service Mode Screen Maintenance Maintenance and annual startup Clean condensate trap Address reported problemsInspect boiler area Inspect boiler interiorCheck expansion tank Check boiler relief valve Flue vent system and air pipingCheck water system Check all boiler wiring Check ignition ground wiringCheck control settings Inspect ignition and flame sense electrodesReview with owner Check flame signalCleaning boiler heat exchanger Test low water flow conditions Test procedureAlarm Screen TroubleshootingCheck control module fuses Before troubleshootingCheck the following No Burner No DisplayOperation Unit DoesTemperature Resistance Checking temperature sensorsNo Pump NoisyOperation Boiler Pump System PumpCondensate Flow SwitchDrain Blocked Flame outWhile Running Light cont’dFlame Lost Troubleshooting High Limit / HEX Automatic ResetTemp SW Blower RPM’sToo High Louver Proving SwitchSensor Open Sensor ShortedAir Flow Too Resets Try LaterLow Flap ValveNo Error Stored Internal FaultWriting to MemosGas Valve Adjustment Combustion Analysis ProcedureOr Obstruction Gas Supply PressureModels 1.3 Gas valve adjustment procedureModel
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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.

The Lochinvar 1 utilizes a stainless steel heat exchanger that enhances durability and corrosion resistance. This not only extends the lifespan of the unit but also ensures consistent performance over time. Coupled with a user-friendly control system, users can easily adjust settings and monitor performance, enhancing overall convenience and usability.

Another key characteristic of the Lochinvar 1 is its compact design, making it suitable for a variety of installation environments. Whether in a residential basement or a commercial utility room, the unit’s space-saving configuration allows for efficient use of available area without compromising on capability.

Safety features are integral to the Lochinvar 1, providing peace of mind for users. The unit is equipped with advanced monitoring systems that can detect irregularities and automatically shut down the system if necessary. This not only protects the equipment but also enhances the safety of the environment in which it operates.

In terms of performance, Lochinvar 1 boasts a high recovery rate, ensuring hot water is available on demand. This is particularly beneficial for settings with high water usage, allowing simultaneous operations without lag.

Moreover, the unit supports various venting options, offering flexibility during installation. Whether using traditional vertical venting or innovations like direct venting, Lochinvar 1 accommodates different building designs and local codes, making it highly versatile.

In conclusion, Lochinvar 1 epitomizes the melding of efficiency, reliability, and user-friendly technology. With its high-performance features, robust safety systems, and adaptable installation options, it stands out as a forefront player in the water heating industry, meeting the diverse needs of today's consumers and businesses alike.
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