Weil-McLain 550-141-827/1201 manual Piping Multiple Zones, Zoning with circulators

Page 14

Connect Water Piping CONTINUED

Piping MULTIPLE ZONES:

1.Follow instructions on page 12 and 13 to install piping near boiler.

2.See FIGURE 9 or 10 to complete installation

3.Zoning with circulators:

a.Size each circulator to individual circuit requirements.

b.Remove circulator (when furnished as standard equipment).

c.Install balancing valves to adjust flow to distribute heat to all zones.

d.Separate relay is required for each circulator.

4.Zoning with zone valves:

a.Install balancing valves to adjust flow to distribute heat to all zones.

b.Separate transformer is required to power zone valves. Refer to “Weil-McLain Zone Valve Wiring Guide” for details.

Legend:

1Isolation valve

2Flow control valve

3Circulator

4Zone valve

5Drain valve

 

 

 

ZONE 2

 

 

 

 

ZONE 2

 

 

 

ZONE 1

 

 

 

 

ZONE 1

 

 

 

 

 

 

1

1

 

 

 

 

 

 

 

1

 

 

 

 

 

1

 

 

 

 

 

 

4

 

 

 

 

2

 

 

 

 

 

 

 

 

 

 

 

 

2

 

1

1

3

5

5

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

1

1

5

 

 

 

 

 

 

 

 

 

5

 

 

 

 

Multiple Zoning With CIRCULATORS

Multiple Zoning With ZONE VALVES

FIGURE 9

FIGURE 10

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Image 14
Contents This Manual Includes Installation Start-Up Boiler Parts Read This Page First Symbol DefinitionsWhen Calling or Writing About the Boiler Hazard DefinitionsTable of Contents Before selecting boiler location Before Installing BoilerInstallations must comply with Provide clearances around boiler see FigureLay a foundation, if needed Do not install exhaust fan in boiler roomProvide air for combustion and ventilation Boiler Foundation Size TablePlace boiler Install Non-Packaged BoilerFiberglass wool and ceramic fiber materials Tankless heater, if used Perform hydrostatic pressure testControl Tapping Table Install jacket sizes 7 through 9 onlyInstall boiler controls Install burner also refer to instructions packed with burner Minimum Chimney Size Table Connect BreechingGeneral chimney requirements Connect Breeching General piping information Install pipingConnect Water Piping Diaphragm expansion tank FigureExpansion Tank Zoning with zone valves Piping Multiple ZonesZoning with circulators Connect Water Piping Hot Water Can Scald Connect Tankless Heater PipingUse with refrigeration systems To pipe tankless heater Tankless Heater Ratings TableThermostat wiring Connect WiringGeneral wiring requirements Burner wiringConnect Wiring Oil piping connection at burner Connect Oil PipingGeneral oil piping requirements Tips for water systems Start-UpFill the system To place in operationCheck-Out Procedure Check off steps as completedBurner adjustments for a boilers AppendixParts List DescriptionParts Drawing Dimensions DimensionsIntermediate Ratings SGO-W Gold OIL Water Boiler Ratings

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