Lochinvar 45000, 260000 specification

Revision A (ECO #C03746) initial release.

Revision B (ECO #C06868) update the pressure drop chart (Table 4C) to reflect the correct models and change out the reference to the two blues wires to SYS/TANK contacts under System Sensor on page 36 (ECR03727).

SBR-I-S Rev B 11/10

Page 52

Image 52

Contents

Models 45,000 260,000 Btu/hr Contents Warranty Please read before proceeding Codes Solution Boiler =B=R Rating Ratings Solution How it works Temperature and pressure gauge Solution How it works Solution How it works Determine boiler location Location of unit 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 Vertical Vent Termination Clearances Less from Ridge From Parapet Wall Masonry Chimney Installation Sidewall Venting Negative DraftVent Materials Fan Assisted Venting Automatic Vent Damper 7Vent Damper and Vent Damper Terminal Block Gas Supply Gas Pressure Test Gas connectionsGas Connection Install Piping to Control Gas Piping Gas Manifold Pressure Adjustment Procedure 2Wrench Checking Gas Supply Pressure 4Gas Supply Pressure Venting of Combination Gas Valves Combination Gas ValvesTwo Stage Burner Control System Water connections Water Flow Switch if equippedRelief Valve Typical Heating Boiler Installations Low Water Cutoff if equippedMinimum Required Flow For Heating Boiler General Plumbing Rules System Temperature Rise Chart Piping of the Boiler System 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 Primary / Secondary Piping Make UP Water Make UP Water 6Multiple Boilers Zoned with Circulators Full System Flow From System 8Single Boiler Full System Flow with Low Temperature Bypass Terminal Strip Wiring Boiler Operating Temperature ControlElectrical connections Auxiliary Device Connection to Terminal Strip Temperature Adjustment AMP Draw Data Maximum SET Point Determination Maximum Set Point Determination Wiring of Remote Sensors Outdoor Air Temperature SensorInstallation of Remote Sensors Outdoor Air Reset Option Additional Temperature Controls Blocked Vent and Flame Roll-Out / Flame Interlock Switch 7Blocked Vent Switch Location Pre-start Checklist Start-upInitial Start-up Lighting Instructions for Spark Ignition Pilot Models Operating Instructions Safety Shutoff Test for Spark Ignition Pilot SystemTo Turn Off Gas to Appliance Intermittent Pilot Spark Ignition System Freeze ProtectionWater Treatment Ignition and Control Timings Maintenance Maintenance and annual startup Service technicianOwner maintenance See the User’s Information Manual for instructions Maintenance Check Expansion Tank Check Relief Valve Check All Wiring Check Control SettingsHeat Exchanger / Burner Access Perform Start-up and Checks Inspection and Cleaning Breathing Fresh air Review with owner Inspection of Heat Exchanger WaterwaysGas Train and Controls Water Circulating Pump Troubleshooting Troubleshooting Guide M9 Solution Boilers Diagrams Schematic Diagram M9 UnitWiring Diagram M9 Unit 45,000 260,000 Btu/hr Models 45,000 260,000 Btu/hr Models

Lochinvar 45000, 260000 service manual

Models: 45000 260000