Lochinvar 3.5, 1.5, 2.5 service manual Service, Boiler piping

Page 6

Service Manual

1 Service

Boiler piping

This piping reference is included to specify the Boiler Piping specific to the Crest boiler. This piping scheme is important for proper operation of the SMART TOUCH control. See the Crest Installation and Operation Manual for more detailed piping diagrams.

Single Boiler - Recommended - Primary / Secondary Piping with a Hot Water Generator

FROM SYSTEM

HOT WATER

GENERATOR

WATER

GENERATOR

CIRCULATOR

BOILER PUMP

SYSTEM RETURN

 

 

 

SENSOR

 

 

 

12"

 

 

 

MAX

BALL VALVE

 

 

RELIEF

 

 

(TYPICAL)

 

 

VALVE

AIR SEPERATOR

 

 

 

 

 

 

DRAIN PORT

 

 

(TYPICAL)

 

 

 

SYSTEM SUPPLY

 

 

SENSOR

 

 

 

SYSTEM

 

 

 

CIRCULATOR

 

 

 

TO SYSTEM

BOILER

 

 

 

DRAIN

PRESSURE

 

MAKE UP

 

REDUCING VALVE

BACK FLOW

 

 

WATER

 

 

PREVENTER

EXPANSION

PRESSURE

 

 

 

TANK

GAUGE

 

 

Y-STRAINER

 

 

 

(RECOMMENDED)

 

 

 

FLOW CHECK

 

 

 

VALVE (TYPICAL)

 

 

 

Single Boiler - Alternate - Full Flow System Piping

RELIEF

VALVE

BALL VALVE (TYPICAL)

FROM SYSTEM

BOILER DRAIN

Y-STRAINER (RECOMMENDED)

AIR SEPERATOR

DRAIN PORT (TYPICAL)

SYSTEM

CIRCULATOR

EXPANSION

 

TANK

 

PRESSURE

PRESSURE

GAUGE

REDUCING VALVE

 

TO SYSTEM

BACK FLOW MAKE UP

PREVENTER WATER

6

Image 6
Contents Models 1.5 2.0 2.5 3.0 Contents Please read before proceeding Handling ceramic fiber materialsNiosh stated First Aid When servicing boiler Maintenance What is in this manual?Service TroubleshootingService Boiler pipingHome Screen Smart Control Module Control inputsControl outputs StripHow the boiler operates Access modesGeneral Operation How the control modules operateTo adjust and save parameters reference FIG Sequence of operation Parameter table Sub Parameter Name See Min Max Default User InstallerValue Access MenuDelay Ramp BMS Setup Setback HWG Night Pumps Initial Setup Viewable and changeable control parametersSet Points Outdoor Reset Ramp Delay Advanced Setup SH/HWG Night Setback Cascade Offset ModBusCascade Minimum On/Off TimePumps Service Notification Running Hours Service NotificationService Notification in Months Service Notification CyclesService Cascade Screen 8Cascade ScreenGraph Screen 9Graph ScreenParameter SelectionService History Screen 11History ScreenLockout Faults13History ScreenRuntime History Service Screen 14Service ScreenOwner maintenance Maintenance Maintenance and annual startupService technician See the Crest User’s Information Manual for InstructionsMaintenance Check expansion tank Flue vent system and air pipingCheck water system Check boiler relief valveCheck control settings Check ignition ground wiringCheck all boiler wiring Check flame signalCleaning boiler heat exchanger Review with ownerCheck the following TroubleshootingBefore troubleshooting Check control module fusesTroubleshooting Checking temperature sensors No Pump Low Water Cutoff OpenAnti-cycling Flame FailureIgnition Flame Out Sequence Flame OutRunning Gas Valve / Relay Failure Unit was running and lost the flameHigh Limit Auto ResetManual Reset High Limit OpenFault Description Corrective Action Delta T High Louver Proving Sw OpenFlue Temp High Outlet TempRem Ctrl Flt Service BlkOutlet Temp High Parameters SavedSensor Shorted Switch OpenSensor Open Flue SensorTemperature Burner SupplyDifferential Too Many Resets Try LaterInternal Fault Writing toWrite EEProm Watch Dog ErrorNo Error Stored CRC ParametersOr Obstruction Combustion Analysis ProcedureGas Valve Adjustment Gas Supply PressureGas valve adjustment procedure 2Gas Valve Adjustment Models 1.5Page
Related manuals
Manual 60 pages 56.2 Kb Manual 16 pages 3.68 Kb Manual 12 pages 30.87 Kb Manual 20 pages 6.19 Kb Manual 52 pages 37.07 Kb Manual 16 pages 33.86 Kb

3, 2, 3.5, 2.5, 1.5 specifications

Lochinvar is a leader in manufacturing high-efficiency water heating solutions, and their Lochinvar 1.5, 1.3, and 1.0 models exemplify the company's commitment to innovation and performance. These advanced heating systems are designed to meet the diverse needs of commercial and residential applications, providing reliable hot water while ensuring energy efficiency and environmental sustainability.

The Lochinvar 1.5, 1.3, and 1.0 models incorporate cutting-edge technologies that set them apart from traditional water heaters. One of the most notable features is their use of high-efficiency condensing technology, which extracts maximum heat from the combustion process. This process allows the units to achieve high thermal efficiencies, often exceeding 95%, which not only reduces energy costs but also lowers greenhouse gas emissions.

In terms of design, Lochinvar's models are constructed with durable materials, ensuring longevity and reliability in demanding environments. The stainless steel heat exchanger is a key element that contributes to the durability and performance of the units. This material is resistant to corrosion and scale build-up, enhancing the lifespan of the heater and reducing maintenance requirements.

The Lochinvar 1.5, 1.3, and 1.0 models feature advanced control systems that provide precise temperature management and easy operation. The intuitive digital display allows users to monitor performance metrics, temperature settings, and energy consumption with ease. Additionally, these units are equipped with intelligent modulating gas valves that optimize fuel usage based on demand, ensuring efficient operation across various load conditions.

Safety is a priority in the design of Lochinvar's water heaters. The models come with built-in safety features, including flame failure detection, overheat protection, and venting safeguards. These systems work together to ensure the safe operation of the units, giving users peace of mind.

Another characteristic that makes the Lochinvar 1.5, 1.3, and 1.0 models popular among users is their compact design. These units are engineered to fit in tight spaces, making them ideal for installations where space is at a premium. Despite their small footprint, they deliver powerful performance, ensuring that users have access to the hot water they need.

In summary, Lochinvar's 1.5, 1.3, and 1.0 water heating models represent the pinnacle of efficiency, safety, and reliability. With their advanced technologies, durable construction, and user-friendly features, these units are an excellent choice for anyone seeking a high-performance water heating solution.