Lochinvar 1.5, 3.5, 2.5 What is in this manual?, Service, Maintenance, Troubleshooting

Page 5

What is in this manual?

Service

Near boiler piping

• Typical system components

The Crest boiler display

• Display panel readout, buttons and their functions

Control module inputs

• Control module inputs and options

Control module outputs

• Control module outputs and options

General

How the boiler operates

How the control module operates

Access modes -- user and installer

Sequence of operation -- HWG/space heating

Control panel menu access

Accessing programming mode and locating menus (See separate guide covering the PC interface.)

Control panel parameter access

• Accessing and changing parameters from the display panel

Quick start information -- parameter table

An index of available adjustments and readouts, where to access them and where to find detailed information.

Crest boiler operation

Initial Setup

Set Points

Outdoor Reset

Ramp Delay

BMS

Advanced Setup

SH Night Setback

HWG Night Setback

Cascade

Pumps

Service Notification

Service Manual

Maintenance

Service and maintenance schedules

Address reported problems

Inspect boiler area and boiler interior

Clean condensate trap

Check all piping for leaks

Check air openings

Flue vent system and air piping

Check water system

Check expansion tank

Check boiler relief valve

Inspect ignition electrode

Check ignition ground wiring

Check all boiler wiring

Check control settings

Perform start-up and checks

Check burner flame

Check flame signal

Check flue gas temperature

General maintenance

Review with owner

Cleaning boiler heat exchanger

Oiled bearing circulators

Troubleshooting

Troubleshooting table - No display

Checking temperature sensors

Sensor tables

Troubleshooting table - Fault messages displayed on boiler interface

Combustion analysis procedure

Gas valve adjustment procedure

5

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Contents Models 1.5 2.0 2.5 3.0 Contents Niosh stated First Aid Please read before proceedingHandling ceramic fiber materials When servicing boiler Service What is in this manual?Maintenance TroubleshootingBoiler piping ServiceHome Screen Control inputs Smart Control ModuleStrip Control outputsGeneral Operation Access modesHow the boiler operates How the control modules operateTo adjust and save parameters reference FIG Sequence of operation Value Access Sub Parameter Name See Min Max Default User InstallerParameter table MenuDelay Ramp BMS Setup Setback HWG Night Pumps Set Points Initial SetupViewable and changeable control parameters Outdoor Reset Ramp Delay Advanced Setup SH/HWG Night Setback Cascade ModBusCascade Offset Minimum On/Off TimePumps Service Notification in Months Service NotificationService Notification Running Hours Service Notification Cycles8Cascade Screen Service Cascade Screen9Graph ScreenParameter Selection Graph Screen11History ScreenLockout Faults Service History Screen13History ScreenRuntime History 14Service Screen Service ScreenService technician Maintenance Maintenance and annual startupOwner maintenance See the Crest User’s Information Manual for InstructionsMaintenance 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 exchangerBefore troubleshooting TroubleshootingCheck the following Check control module fusesTroubleshooting Checking temperature sensors No Pump Cutoff Open Low WaterIgnition Anti-cyclingFlame Failure Running Flame Out SequenceFlame Out Unit was running and lost the flame Gas Valve / Relay FailureManual Reset Auto ResetHigh Limit High Limit OpenFault Description Corrective Action Flue Temp High Louver Proving Sw OpenDelta T High Outlet TempOutlet Temp High Service BlkRem Ctrl Flt Parameters SavedSensor Open Switch OpenSensor Shorted Flue SensorDifferential TemperatureBurner Supply Internal Fault Resets Try LaterToo Many Writing toNo Error Stored Watch Dog ErrorWrite EEProm CRC ParametersGas Valve Adjustment Combustion Analysis ProcedureOr Obstruction Gas Supply Pressure2Gas Valve Adjustment Models 1.5 Gas valve adjustment procedurePage
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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.