Models 45,000 260,000 Btu/hr | Lochinvar 260000 instruction

SBR-I-S Rev B

Installation & Service Manual

Models: 45,000 - 260,000 Btu/hr

WARNING:

This manual supplies information for the installation, operation, and servicing of the appliance. It is strongly recommended that this manual be reviewed completely before proceeding with an installation. Perform steps in the order given. Failure to comply could result in severe personal injury, death, or substantial property damage.

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Lochinvar 260000, 45000 service manual Models 45,000 260,000 Btu/hr

Contents

Models 45,000 260,000 Btu/hr Contents Please read before proceeding Warranty Codes Ratings Solution Boiler =B=R Rating Temperature and pressure gauge Solution How it works Solution How it works Solution How it works Location of unit Determine boiler location 3Combustion Air Direct from Outside 6Combustion Air from Outside Single Opening Minimum Recommended Combustion AIR Supply to Equipment Room Conventional Negative Draft Venting System VentingVent Pipe Sizes Venting Less from Ridge From Parapet Wall Vertical Vent Termination Clearances Sidewall Venting Negative Draft Masonry Chimney InstallationVent Materials Fan Assisted Venting 7Vent Damper and Vent Damper Terminal Block Automatic Vent Damper Gas Supply Gas Pressure Test Gas connectionsGas Connection Gas Piping Install Piping to Control 2Wrench Gas Manifold Pressure Adjustment Procedure 4Gas Supply Pressure Checking Gas Supply Pressure Venting of Combination Gas Valves Combination Gas ValvesTwo Stage Burner Control System Water connections Water Flow Switch if equippedRelief Valve Low Water Cutoff if equipped Typical Heating Boiler InstallationsMinimum Required Flow For Heating Boiler General Plumbing Rules Piping of the Boiler System System Temperature Rise Chart Water Connections Heat Exchanger Pressure Drop ChartCirculator Pump Requirements Primary/Secondary Boiler Piping Circulator Pump SpecificationsCirculator Pump Operation Full Flow Application Low Temperature Bypass RequirementsBoiler Flow Rates Make UP Water Primary / Secondary Piping Make UP Water 6Multiple Boilers Zoned with Circulators From System Full System Flow 8Single Boiler Full System Flow with Low Temperature Bypass Boiler Operating Temperature Control Terminal Strip WiringElectrical connections Auxiliary Device Connection to Terminal Strip AMP Draw Data Temperature Adjustment Maximum Set Point Determination Maximum SET Point Determination Wiring of Remote Sensors Outdoor Air Temperature SensorInstallation of Remote Sensors Additional Temperature Controls Outdoor Air Reset Option 7Blocked Vent Switch Location Blocked Vent and Flame Roll-Out / Flame Interlock Switch Start-up Pre-start ChecklistInitial Start-up Lighting Instructions for Spark Ignition Pilot Models Operating Instructions Safety Shutoff Test for Spark Ignition Pilot SystemTo Turn Off Gas to Appliance Freeze Protection Intermittent Pilot Spark Ignition SystemWater Treatment Ignition and Control Timings Service technician Maintenance Maintenance and annual startupOwner maintenance See the User’s Information Manual for instructions Maintenance Check Relief Valve Check Expansion Tank Check Control Settings Check All WiringHeat Exchanger / Burner Access Perform Start-up and Checks Breathing Fresh air Inspection and Cleaning Inspection of Heat Exchanger Waterways Review with ownerGas Train and Controls Water Circulating Pump Troubleshooting Guide M9 Solution Boilers Troubleshooting Schematic Diagram M9 Unit DiagramsWiring Diagram M9 Unit 45,000 260,000 Btu/hr Models 45,000 260,000 Btu/hr Models