Primary / Secondary Piping, Make UP Water | Lochinvar 260000, 45000

Installation & Service Manual

4Water connections (continued)

Primary / Secondary Piping

Figure 4-4_Primary / Secondary Piping of a Single Boiler

BACKFLOW PREVENTER

PRESSURE

REDUCING VALVE

PRESSURE

GAUGE

MAKE UP WATER

SYSTEM SUPPLY

SENSOR

SYSTEM

CIRCULATOR

TO

SYSTEM

AIR

SEPARATOR

NOT TO EXCEED 12"APART

FROM SYSTEM

BALL VALVE

(TYPICAL)

EXPANSION	BOILER
EXPANSION	CIRCULATOR
TANK

DRAIN POINT

(TYPICAL)

Y-STRAINER

(RECOMMENDED)

UNION (TYPICAL)

TEMPERATURE / PRESSURE

GAUGE DRAIN

PRESSURE

RELIEF VALVE

SOLUTION

BOILER

29

Image 29

Lochinvar 260000, 45000 service manual Primary / Secondary Piping, Make UP Water

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 Vent Pipe Sizes VentingConventional Negative Draft Venting System 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 Connection Gas connectionsGas Supply Gas Pressure Test Gas Piping Install Piping to Control 2Wrench Gas Manifold Pressure Adjustment Procedure 4Gas Supply Pressure Checking Gas Supply Pressure Two 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 Rules Piping of the Boiler System System Temperature Rise Chart 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 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 Installation of Remote Sensors Outdoor Air Temperature SensorWiring 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 To 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 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