Manuals / Lochinvar / Household Appliance / Boiler

Lochinvar 45000, 260000 service manual Full System Flow, From System

Models: 45000 260000

1 52

Download 52 pages 10.43 Kb

Page 32

Installation & Service Manual

4Water connections

Full System Flow

Figure 4-7_Single Boiler Full System Flow

BACKFLOW PREVENTER

PRESSURE

REDUCING VALVE

PRESSURE

GAUGE

MAKE UP WATER

SYSTEM SUPPLY

SENSOR

SYSTEM

CIRCULATOR

TO

SYSTEM

AIR

SEPARATOR

FROM

SYSTEM

BALL VALVE

(TYPICAL)

EXPANSION

TANK

Y-STRAINER

(RECOMMENDED)

UNION (TYPICAL)

TEMPERATURE / PRESSURE

GAUGE DRAIN

PRESSURE

RELIEF VALVE

SOLUTION

BOILER

32

Image 32

Lochinvar 45000, 260000 service manual Full System Flow, From System

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 Vent Pipe Sizes VentingConventional Negative Draft Venting System 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 Connection Gas connectionsGas Supply Gas Pressure Test Install Piping to Control Gas Piping Gas Manifold Pressure Adjustment Procedure 2Wrench Checking Gas Supply Pressure 4Gas Supply Pressure Two Stage Burner Control System Combination Gas ValvesVenting of Combination Gas Valves Relief Valve Water Flow Switch if equippedWater connections 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 Circulator 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 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 Installation of Remote Sensors Outdoor Air Temperature SensorWiring 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 To Turn Off Gas to Appliance Safety Shutoff Test for Spark Ignition Pilot SystemOperating Instructions 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