Lochinvar SIT030, SIT119 operation manual Start-up and check-out

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Installation & Operation Manual

6 Start-up and check-out

1.Make sure the system is free of leaks and that air is purged from the system.

CAUTION

Fix any leaks found before proceeding further. Leakage from the boiler piping can result in severe damage to the boiler.

2.Many soldering fluxes contain Zinc Chloride which can cause severe corrosion damage to stainless steel. After completing all domestic water connections, flush the indirect water heater thoroughly before leaving the installation. This is particularly important if the indirect water heater will be unused for an extended period of time after installation. Flush the indirect water heater by drawing at least three times its volume from the tank.

3.Make sure that all electrical connections are made correctly and that no exposed high voltage wiring is present.

4.Make sure that each zone valve or circulator operates when, and only when, its thermostat calls for heat. Let each zone operate long enough to purge any remaining air from the system.

5.Set the indirect water heater to the desired temperature. Because hot water presents a scald hazard, it is best to set the thermostat at 120°F or lower and raise it only if necessary to provide adequate hot water.

6.Re-enable the burner and allow the boiler to operate. Make sure that the boiler shuts down when the indirect water heater is satisfied.

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Contents Models SIT030 SIT119 Installation & Operation ManualContents Indirect water heater operation Please read before proceedingOperating restrictions General informationSingle-wall heat exchanger Component MaterialsLocating the tank Pre-installationRecommended clearances Water Chemistry RequirementsPressure Drop Values Pressure Drop ChartBoiler side piping 1Piping Diagram Zoned with Circulators 2Piping Diagram Zoned with Valves 3Knight Boiler Primary / Secondary Piping 4Multiple Tank Connections Basic domestic piping Domestic side tank pipingDomestic water piping for distant fixtures Multiple tank domestic water pipingStandard Installation Install drain valveSIT050 105,000 SIT065 200,000 SIT080 SIT119 Btu/hr2Recommended Domestic Water Piping Indirect water heater sensor setup Knight boiler WiringInstall tank sensor Connect tank sensor2Wiring for Zone Control Start-up and check-out Maintenance Schedule MaintenanceHomeowner monthly maintenance to include To Fill the Water HeaterPerformance data Estimate your peak hour demand as follows How to properly Size Your Indirect Water HeaterFixture Count Guide 110First Hour Rating 180F Boiler Loop Water Knight Boiler First Hour Rating 180F Boiler Loop Water Universal Sizing First Hour Rating 200F Boiler Loop Water Universal Sizing

SIT030, SIT119 specifications

Lochinvar is a renowned manufacturer of high-efficiency heating solutions, including a range of commercial and residential boilers. Among their offerings are the Lochinvar SIT119 and SIT030 models, which exemplify the brand's commitment to innovation and efficiency in modern heating systems.

The Lochinvar SIT119 is designed for medium to large residential applications, boasting a powerful heating capacity. This model features a robust stainless steel heat exchanger that not only enhances durability but also promotes optimal heat transfer. As part of Lochinvar’s commitment to energy efficiency, the SIT119 incorporates advanced features such as a modulating burner system that adjusts the flame output based on the heating demand, resulting in lower energy consumption and reduced operational costs.

In addition to its efficiency, the SIT119 is equipped with user-friendly controls that allow homeowners and technicians to easily manage and monitor the system. Its intuitive digital display provides real-time information on system performance and diagnostic capabilities, facilitating maintenance and troubleshooting. Furthermore, the SIT119’s compact design enables versatile installation options, making it suitable for various residential spaces.

On the other hand, the Lochinvar SIT030 is tailored for smaller residential applications. Despite its smaller size, it doesn’t compromise on performance or efficiency. This model also features a high-quality stainless steel heat exchanger, ensuring longevity and consistent heating performance. Like the SIT119, the SIT030 utilizes a modulating burner system to optimize energy use, making it an environmentally friendly choice for homeowners seeking effective heating solutions.

One notable characteristic of the SIT030 is its low NOx emission design, which aligns with contemporary environmental standards and helps reduce the carbon footprint associated with heating. Additionally, both models support easy integration with existing heating systems and can be paired with renewable energy sources, such as solar thermal systems, maximizing their efficiency and sustainability.

In summary, the Lochinvar SIT119 and SIT030 models stand out in the heating market, combining advanced technologies with high efficiency and user-friendly features. Their stainless steel construction, modulating burners, compact design, and emissions compliance make them excellent choices for homeowners looking to invest in reliable and eco-conscious heating solutions. With these models, Lochinvar continues to lead in producing innovative products that meet the evolving demands of the heating industry.
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