Lochinvar 45,000 - 260,000 BTU/HR Operating Instructions, To Turn Off Gas to Appliance

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6Start-up(continued)

Operating Instructions

1.STOP! Read the safety information first.

2.Remove the control panel door.

3.Set the thermostat to the lowest setting (OFF).

4.Turn off all electrical power to the appliance.

5.This appliance is equipped with an ignition device which automatically lights the pilot. DO NOT try to light the pilot by hand.

6a. 45,000 - 135,000 Btu/hr models, rotate the gas control knob on the gas valve clockwise to the “OFF” position.

6b. 180,000 - 260,000 Btu/hr models, rotate the gas control knob on the gas valve clockwise to the line on the collar around the knob. Depress the knob and continue rotation to the “OFF” position.

7.Wait five (5) minutes to clear out any gas, then smell for gas, including near the floor. If you smell gas, STOP! Follow the steps in the “What To Do If You Smell Gas” section in the safety information on page 39. If you do not smell gas go on to the next step.

8a. 45,000 - 135,000 Btu/hr models, rotate the gas control knob on the gas valve counterclockwise to the “ON” position.

8b. 180,000 - 260,000 Btu/hr models, rotate the gas control knob on the gas valve counterclockwise to the line on the collar around the knob. Allow the knob to “pop” up, and continue rotation to the “ON” position.

9.Turn on all electric power to the appliance.

10.Set the thermostat to the desired setting.

11.Re-install the control panel door.

12.If the appliance will not operate, follow the instructions “To Turn Off Gas To Appliance” and call your service technician or gas supplier.

Installation & Service Manual

To Turn Off Gas to Appliance

1.Set the thermostat to the OFF position.

2.Turn off all electric power to the appliance if service is to be performed.

3a. 45,000 - 135,000 Btu/hr models, rotate the gas control knob on the gas valve clockwise to the “OFF” position. Do not force.

3b. 180,000 - 260,000 Btu/hr models, rotate the gas control knob on the gas valve clockwise to the line on the collar around the knob. Depress the knob and continue rotation to the “OFF” position. Do not force.

Should overheating occur or the gas fail to WARNING shut off, turn off the external manual gas

valve to the appliance.

Safety Shutoff Test for Spark Ignition Pilot System

1.Turn “OFF” gas supply to the appliance.

2.Turn thermostat to highest setting.

3.Turn electric power “ON”.

4.Pump relay pulls in to start pump.

5.The ignition will begin sparking at the pilot.

6.The ignition module will lock out after the 90 second trial for ignition period.

7.Immediately call a qualified serviceman or installer to repair an ignition system that fails to lock out and properly shut down burner operation.

8.After successful completion of the test, readjust the thermostat to normal setting.

9.Turn “ON” gas supply.

10.Turn power “OFF” then “ON” to reset ignition module.

11.If ignition system fails to operate properly, repair work must be performed by a qualified serviceman or installer.

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Contents Models 45,000 260,000 Btu/hr Contents Please read before proceeding WarrantyCodes Ratings Solution Boiler =B=R RatingTemperature and pressure gauge Solution How it worksSolution How it works Solution How it works Location of unit Determine boiler location3Combustion Air Direct from Outside 6Combustion Air from Outside Single Opening Minimum Recommended Combustion AIR Supply to Equipment Room Vent Pipe Sizes VentingConventional Negative Draft Venting System Venting Less from Ridge From Parapet Wall Vertical Vent Termination ClearancesSidewall Venting Negative Draft Masonry Chimney InstallationVent Materials Fan Assisted Venting7Vent Damper and Vent Damper Terminal Block Automatic Vent DamperGas Connection Gas connectionsGas Supply Gas Pressure Test Gas Piping Install Piping to Control2Wrench Gas Manifold Pressure Adjustment Procedure4Gas Supply Pressure Checking Gas Supply PressureTwo Stage Burner Control System Combination Gas ValvesVenting of Combination Gas Valves Relief Valve Water Flow Switch if equippedWater connections Low Water Cutoff if equipped Typical Heating Boiler InstallationsMinimum Required Flow For Heating Boiler General Plumbing RulesPiping of the Boiler System System Temperature Rise ChartCirculator Pump Requirements Heat Exchanger Pressure Drop ChartWater Connections Circulator Pump Operation Circulator Pump SpecificationsPrimary/Secondary Boiler Piping Boiler Flow Rates Low Temperature Bypass RequirementsFull Flow Application Make UP Water Primary / Secondary PipingMake UP Water 6Multiple Boilers Zoned with Circulators From System Full System Flow8Single Boiler Full System Flow with Low Temperature Bypass Boiler Operating Temperature Control Terminal Strip WiringElectrical connections Auxiliary Device Connection to Terminal StripAMP Draw Data Temperature AdjustmentMaximum Set Point Determination Maximum SET Point DeterminationInstallation of Remote Sensors Outdoor Air Temperature SensorWiring of Remote Sensors Additional Temperature Controls Outdoor Air Reset Option7Blocked Vent Switch Location Blocked Vent and Flame Roll-Out / Flame Interlock SwitchStart-up Pre-start ChecklistInitial Start-up Lighting Instructions for Spark Ignition Pilot ModelsTo Turn Off Gas to Appliance Safety Shutoff Test for Spark Ignition Pilot SystemOperating Instructions Freeze Protection Intermittent Pilot Spark Ignition SystemWater Treatment Ignition and Control TimingsService technician Maintenance Maintenance and annual startupOwner maintenance See the User’s Information Manual for instructionsMaintenance Check Relief Valve Check Expansion TankCheck Control Settings Check All WiringHeat Exchanger / Burner Access Perform Start-up and ChecksBreathing Fresh air Inspection and CleaningInspection of Heat Exchanger Waterways Review with ownerGas Train and Controls Water Circulating PumpTroubleshooting Guide M9 Solution Boilers TroubleshootingSchematic Diagram M9 Unit DiagramsWiring Diagram M9 Unit 45,000 260,000 Btu/hr Models 45,000 260,000 Btu/hr ModelsPage Revision a ECO #C03746 initial release SBR-I-S Rev a

45,000 - 260,000 BTU/HR specifications

Lochinvar, a leader in high-efficiency heating solutions, presents the Lochinvar line of boilers, specifically the Lochinvar 45,000 - 260,000 BTU/HR models. These boilers are designed to meet a wide range of heating demands, making them ideal for residential and commercial applications alike.

One of the key features of the Lochinvar boilers is their impressive efficiency rating. Utilizing advanced condensing technology, these units can achieve efficiencies of up to 96% AFUE (Annual Fuel Utilization Efficiency). This high efficiency not only reduces fuel consumption but also lowers utility bills, making it a cost-effective solution for heating needs.

The Lochinvar boilers are equipped with a powerful heat exchanger constructed from durable stainless steel. This design not only maximizes heat transfer but also enhances the longevity of the unit. By preventing corrosion and minimizing maintenance requirements, the stainless steel heat exchanger ensures that the boiler operates at peak performance for years.

Another significant aspect of the Lochinvar boilers is their modulating burner system. This technology allows the boiler to adjust its output based on demand, ensuring that it only uses the energy necessary to maintain the desired temperature. This feature not only improves efficiency but also contributes to a more comfortable indoor environment by minimizing temperature fluctuations.

The Lochinvar series also showcases a user-friendly control interface. The advanced LCD display allows for easy monitoring and adjustment of system settings. Connectivity options are often included, providing the ability to integrate with modern building management systems for enhanced control and diagnostics.

Safety features abound in the Lochinvar models, which include built-in safeguards such as temperature and pressure relief valves, flame detection systems, and modulation cut-off to protect against overheating and other hazardous conditions.

Moreover, these boilers are designed for easy installation and maintenance. Compact dimensions and lightweight design facilitate straightforward setup, even in tight spaces. Additionally, users can take advantage of the unit’s self-diagnostic capabilities to simplify troubleshooting and reduce downtime.

In conclusion, the Lochinvar 45,000 - 260,000 BTU/HR boilers represent a pinnacle of innovation in heating technology. With high efficiency, advanced control systems, durable components, and safety features, they stand out as reliable and effective solutions for a variety of heating applications, ensuring comfort and efficiency in any environment.
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