Lochinvar 151-286 operation manual IMG00374

Page 21

Outdoor Knight Boiler Installation & Operation Manual

3 Hydronic piping (continued)

Figure 3-8Single Boiler - Multiple Temperatures with DHW Piped as a Zone

 

PRESSURE

TEMPERATURE

TEMPERATURE

TEMPERATURE

WIRES TO

BACKFLOW

REDUCING VALVE

LOOP #1

LOOP #2

LOOP #3

LOOP

PREVENTER

PRESSURE

 

 

 

SENSORS

 

 

 

 

 

 

GAUGE

 

 

 

 

MAKE

 

UP

MIXING VALVES

WATER

(TYPICAL)

 

SYSTEM

 

SUPPLY

 

SENSOR

 

AIR SEPARATOR

EXPANSION

TANK

MAY SUBSTITUTE

LOW LOSS HEADER

BALL VALVE

NOT TO EXCEED 4 PIPE DIA OR MAX. OF 12" APART

24V SIGNAL TO

(TYPICAL)

MIXING VALVES

DRAIN POINT

120VAC TO PUMPS

(TYPICAL)

 

 

DOMESTIC

MULTI-TEMP TO

 

LOOP CONTROL

Y-STRAINER

HOT WATER

 

CIRCULATOR

 

(RECOMMENDED)

 

 

SHIELDED CABLE TO

 

FLOW

 

BOILER CONTROL

 

CHECK

 

HOT WATER

 

VALVE

 

 

OUT

BOILER

 

 

CIRCULATOR

 

 

 

PRESSURE

 

 

RELIEF

 

 

VALVE

 

UNION

 

TEMPERATURE /

 

DRAIN

PRESSURE GAUGE

 

(TYPICAL)

 

 

BOILER

BOILER

INDIRECT

 

 

 

DHW TANK

ANTI-SCALD MIXING VALVE

COLD WATER IN

CAUTION

NOTICE

NOTICE

IMG00374

Mixing valves are required for the protection of low temperature loops.

Please note that these illustrations are meant to show system piping concept only, the installer is responsible for all equipment and detailing required by local codes.

Indoor tank shown for illustration purposes.

 

Please note that the installer is responsible for ensuring DHW prioritization when piped as a zone.

 

Indoor tank shown for illustration purposes.

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Image 21
Contents Save this manual for future reference Contents Please read before proceeding When servicing boilerStainless steel heat exchanger Outdoor Knight Boiler How it worksModels 151 Model Outdoor Knight Boiler Ahri Rating RatingsInstallation must comply with Determine boiler locationBefore locating the boiler, check Provide clearances Outdoor vent / air intake location Flooring and foundationPrevent combustion air contamination Prepare boiler Remove boiler from wood palletGas conversions 286 Leveling the boilerHydronic piping Near boiler piping components Near boiler piping connections System temperature sensorCirculator sizing Indirect water heatersPressure FeetModel Minimum Pipe Pump Size GrundfosVariable speed pump setup Smart System / Multi-temperature loop control optionVariable speed pump option UP26-96 FC/VS IFC VS Stratos 1.25 3 xZone #1 Number of Units Model Required Pipe Sizes 6Single Boiler Multiple Temperatures 151 211 286 IMG00374 Number of Units 10Multiple Boilers Non-Zoned Primary/Secondary Piping Gas connections Connecting gas supply pipingPropane Gas Natural gasSingle Unit Natural Gas Pipe Capacity Chart Check inlet gas supplyLength of Pipe in Straight Feet for 1/2 PSI Gas Pressure Gas valve replacementInstallation must comply with Field wiringLine voltage connections Low voltage connectionsHigh gas pressure switch Outdoor temperature sensorLow gas pressure switch ThermostatAlarm contacts Flow switch Runtime contactsWiring of the cascade System supply sensor3Low Voltage Field Wiring Connections Condensate drain Condensate disposalStart-up Freeze protection when usedCheck/control water chemistry Fill and test water systemCheck thermostat circuits Check for gas leaksInspect/fill condensate system Inspect/check condensate lines and fittingsStart the boiler Final checks before starting the boilerIf boiler does not start correctly Check system and boiler2Operating Instructions Natural Gas Propane Set space heating operationVerify DHW mode Configuration of the cascadeSet domestic hot water DHW operation General Operating informationHow the boiler operates How the control module operatesProtection features Temperature controlBoiler temperature regulation Cascade Outdoor reset operationOperation Display Sequence of operationStandby, ready to start a new cycle Installer Access modesOutdoor Knight boiler control module UserCall for Heat Operating information Dial Function Maintenance Maintenance and annual startup Service technicianOwner maintenance Maintenance Check water system Flue vent system and air pipingCheck expansion tank Check boiler relief valveCheck all boiler wiring Check ignition ground wiringCheck control settings Check flame signalReview with owner Cleaning boiler heat exchangerOiled bearing circulators Model Kit Part Component Number DescriptionPC Interface DiagramsHigh Voltage 120 VAC

151-286 specifications

Lochinvar 151-286 is a high-efficiency water heater designed for both residential and commercial applications. This model stands out due to its advanced technology, user-friendly controls, and robust construction, making it a reliable choice for those seeking to optimize their hot water supply.

One of the key features of the Lochinvar 151-286 is its impressive heating capacity. With a maximum input of 286,000 BTU/hr, it can efficiently meet hot water demands for a variety of settings, including hotels, restaurants, and other commercial facilities. This substantial output ensures that even during peak usage hours, hot water availability is maximized, reducing wait times and enhancing customer satisfaction.

The water heater utilizes a state-of-the-art condensing technology that maximizes efficiency by capturing and utilizing flue gas heat. This process allows the Lochinvar 151-286 to achieve an impressive thermal efficiency rating of up to 98%. The benefit of such high efficiency translates to significant energy savings and reduced operational costs over time, making it an environmentally friendly option as well.

The Lochinvar 151-286 is equipped with a user-friendly control system featuring advanced microprocessor controls. These controls allow for precise temperature management and monitoring, enabling users to set optimal temperatures according to their specific needs. Additionally, the heater includes built-in diagnostics, allowing for easy troubleshooting and maintenance, which minimizes downtime and extends the life of the unit.

Another standout characteristic of the Lochinvar 151-286 is its durable construction. Built with high-quality materials, including a robust stainless steel heat exchanger, this model is designed to withstand the rigors of daily use. The unit also features a compact design, which facilitates easy installation in various locations, whether it be in a utility closet or alongside existing equipment.

Safety features are paramount in the Lochinvar 151-286, with multiple safeguards in place to protect against overheating and other potential issues. The unit is designed to operate reliably, ensuring peace of mind for users who depend on consistent hot water availability.

In summary, the Lochinvar 151-286 water heater combines high capacity, exceptional efficiency, and user-friendly technology, making it an excellent choice for those seeking reliable hot water solutions. Its advanced features deliver performance and durability that stand out in the competitive market of water heating systems.