Lochinvar SIT030, SIT119 Please read before proceeding, Indirect water heater operation

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Installation & Operation Manual

Please read before proceeding

￿WARNING

NOTICE

Installer – Read all instructions before installing. Perform steps in the order given.

Have this indirect water heater serviced/ inspected by a qualified service technician, at least annually.

Failure to comply with the above could result in severe personal injury, death or substantial property damage.

When calling or writing about the appliance

Please have the indirect water heater model and serial number from the indirect water heater rating plate.

Installation and service must be performed by a qualified installer, service agency, or the gas supplier.

￿WARNING Failure to adhere to the guidelines on this page can result in severe personal injury,

death, or substantial property damage.

When servicing the indirect water heater –

To avoid severe burns, allow the appliance to cool before performing maintenance.

Indirect water heater operation –

Consider piping and installation when determining appliance location.

• Should overheating occur or gas supply fail to shut off,

do not turn off or disconnect electrical supply to

circulator. Instead, shut off the gas supply at a location

￿WARNING

Any claims for damage or shortage in shipment must be filed immediately against the transportation company by the consignee.

Factory warranty (shipped with appliance) does not apply to appliances improperly installed or improperly operated.

If the information in this manual is not followed exactly, a fire or explosion may result causing property damage, personal injury or loss of life.

This appliance MUST NOT be installed in any location where gasoline or flammable vapors are likely to be present.

WHAT TO DO IF YOU SMELL GAS

Do not try to light any appliance.

Do not touch any electric switch; do not use any phone in your building.

Immediately call your gas supplier from a neighbor’s phone. Follow the gas supplier’s instructions.

If you cannot reach your gas supplier, call the fire department.

external to the appliance.

• Do not use this appliance if any part has been under

water. The possible damage to a flooded appliance can

be extensive and present numerous safety hazards. Any

appliance that has been under water must be replaced.

The following chart details the relationship of water temperature and time with regard to scald injury and may be used as a guide in determining the safest water temperature for your applications.

APPROXIMATE TIME / TEMPERATURE

RELATIONSHIPS IN SCALDS

120°F

More than 5 minutes

 

 

125°F

1 1/2 to 2 minutes

130°F

About 30 seconds

135°F

About 10 seconds

140°F

Less than 5 seconds

145°F

Less than 3 seconds

150°F

About 1 1/2 seconds

155°F

About 1 second

Hot Water Can Scald!

Water heated to temperatures for clothes washing, dish washing, and other sanitizing needs can scald and cause permanent injury.

Children, elderly, and infirm or physically handicapped persons are more likely to be permanently injured by hot water. Never leave them unattended in a bathtub or shower. Never allow small children to use a hot water tap or draw their own bath.

If anyone using hot water in the building fits the above description, or if state laws or local codes require certain water temperatures at hot water taps, you must take special precautions:

Use lowest possible temperature setting.

Install some type of tempering device, such as an automatic mixing valve, at hot water tap or water heater. Automatic mixing valve must be selected and installed according to valve manufacturer’s recommendations and instructions.

Water passing out of drain valves may be extremely hot. To avoid injury:

Make sure all connections are tight.

Direct water flow away from any person.

Protection Must Be Taken Against Excessive Temperature and Pressure! --Installation of a Temperature & Pressure (T&P) relief valve is required.

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Contents Models SIT030 SIT119 Installation & Operation ManualContents Indirect water heater operation Please read before proceedingComponent Materials General informationOperating restrictions Single-wall heat exchangerWater Chemistry Requirements Pre-installationLocating the tank Recommended clearancesPressure Drop Chart Boiler side pipingPressure Drop Values 1Piping Diagram Zoned with Circulators 2Piping Diagram Zoned with Valves 3Knight Boiler Primary / Secondary Piping 4Multiple Tank Connections Multiple tank domestic water piping Domestic side tank pipingBasic domestic piping Domestic water piping for distant fixturesStandard Installation Install drain valveSIT050 105,000 SIT065 200,000 SIT080 SIT119 Btu/hr2Recommended Domestic Water Piping Connect tank sensor WiringIndirect water heater sensor setup Knight boiler Install tank sensor2Wiring for Zone Control Start-up and check-out To Fill the Water Heater MaintenanceMaintenance Schedule Homeowner monthly maintenance to includePerformance data 110 How to properly Size Your Indirect Water HeaterEstimate your peak hour demand as follows Fixture Count GuideFirst 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.