Weil-McLain 88 manual Install water boiler controls, Install controls

Page 26

Weil-McLain 88 Water and steam boilers — Series 2 — for Gas, Light Oil, & Gas/Light Oil-Fired Burners

Install water boiler controls

Install controls:

 

Figure 37 Water control locations

1. Install furnished controls per Figure 36 and Figure 37.

Failure to properly install, pipe and wire boiler controls can result in severe damage to boiler, building and per- sonnel; and is not covered by boiler warranty.

2.Relief valve must be installed with spindle in vertical position. Use fittings provided with boiler. Do not make any other connection in that piping.

Relief valve discharge line must be piped using rigid material suitable for 375°F, threaded one end, near floor close to drain to eliminate potential of severe burns. Do not pipe to any area where freezing could occur. Do not plug, valve or place any obstruction in discharge line.

3.When installing low water cut-off

a.Must be installed if boiler is located above radiation level.

b.May be required on water boilers by certain state, local or ter- ritorial codes or insurance companies.

c.Install low water cutoff designed for water installations where shown in Figure 36 and Figure 37.

4.If installation is to comply with ASME installation requirements, an additional high temperature limit is needed. Purchase and install in supply line between boiler and isolation valve or in tapping "A."

5.Dual limit control settings:

a Low. – set according to design requirements.

b High. – at least 20° higher than low limit, 240°F maximum.

6.Install optional controls per control manufacturer's instructions.

Figure 36 Water control tappings (see Figure 37)

Location Size Function

A2" High limit Manual reset limit

B2" Water relief valve

 

L

1"

Not used — plug

 

 

 

 

 

C1

& C2

1"

Alternate low water cut-offs

 

 

 

 

C1

 

Combination high and low

 

 

 

limit control

 

 

 

 

 

D1

& D2

1"

Firing rate temperature

 

 

 

control (when used)

 

 

 

Low water cut-offs

 

 

 

 

 

E1

& E2

½"

—

 

 

 

 

 

F1

& F2

C\,"

—

 

 

 

 

 

 

G

¾"

Combination pressure–temperature gauge

 

 

 

 

 

 

H

¾"

Boiler drain

 

 

 

 

 

 

K

1"

Piping to compression tank or automatic air vent

 

 

 

 

 

26

 

 

 

Part No. 550-100-068/0308

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Contents Boiler Manual Read before proceeding Read before proceedingHazard Definitions Contents Before selecting boiler location Before installing boilerInstallation must comply with Provide clearance around boilerCombustion air openings to inside Required volume of interior spacesCombustion and ventilation air openings Combustion air openings to outsideLouvers, Grilles, and Screens Engineered InstallationsCombustion air combination indoor and outdoor openings Mechanical Combustion Air SupplyFor packaged boiler For block assemblySet boiler in place Assembling the block Prepare and position back sectionInstall intermediate sections If using tankless heater TI sectionsNumber Boiler modelSection arrangement Steam boiler Between 45 and 55 psig Perform hydrostatic pressure testPrepare boiler and test Insert HXT-bars Complete block assemblyInstall burner mounting plate on front section Install cleanout plates Install draft hood collarGeneral water piping information Install pipingConnect water boiler piping Piping multiple boilers By-pass circulator sizingConnect steam boiler piping General steam piping informationMinimum height of header above water line must be 24 inches Steam boiler piping guidelinesDrawing legend & notes Hartford loop piping for all steam boilersModel 1288 through 1888 steam 3 or 4 risers required Multiple Steam Boiler Piping Gravity Condensate Return Install support brackets/channels Install jacketBefore installing jacket Remove jacket parts from cartonsInstall jacket Install jacket top panels Install jacket front and back panelsInstall jacket side panels Install jacket trimJacket side panel placement Jacket top panel placement Hot water can scald Pipe tankless heatersTo pipe tankless heaters Install water boiler controls Install controlsInstall steam boiler controls Steam control locationsSteam control siphon and fittings Select type of venting system Connect breeching and venting systemsGeneral venting information Construct metal breechingStub vent forced draft single boiler Install burner & wiring and fill system Gas piping Install fuel pipingFuel oil piping Flue gas temperature no lower than 330F Make final adjustmentsAdjust burner and damper assembly Skim steam boilersRemoval of Front Plate or Cleanout Plate Materials Handling ceramic fiber and fiberglass materialsRatings =B=RModel Supply & return tappings Burner lengths Dimension F DimensionsDimensions inches Model 1788 1888Dimensions see lettered dimensions on opposite Parts Description Part numberParts Warranty Weil-McLain Limited Warranties

88 specifications

The Weil-McLain 88 series is a commercial cast iron boiler recognized for its durability, efficiency, and versatile design, making it a preferred choice for various heating applications. Designed primarily for commercial and industrial use, the Weil-McLain 88 combines advanced technology with proven engineering principles to deliver reliable performance and long-lasting service.

One of the standout features of the Weil-McLain 88 is its cast iron construction. Cast iron is renowned for its ability to retain heat, resulting in lower fuel consumption and more consistent heating. This robust material ensures that the boiler can withstand high temperatures and pressures, making it suitable for heavy-duty applications. The sectional design of the boiler allows for easy installation and maintenance, enabling quick access to components and minimizing downtime.

In terms of efficiency, the Weil-McLain 88 is designed to achieve high thermal efficiency ratings. The boiler employs a flue gas recirculation system, which significantly reduces heat loss and maximizes energy utilization. Additionally, its low water content provides rapid heating response times, ensuring that spaces are heated promptly, even during peak demand periods.

Another noteworthy characteristic of the Weil-McLain 88 is its versatility. The boiler can be configured for a variety of applications, including hot water heating, hydronic heating systems, and steam heating. It is compatible with multiple fuel types, including natural gas, propane, and various oil options, allowing for flexibility in fuel choice based on availability and pricing.

The Weil-McLain 88 also incorporates advanced control technologies that enhance operational efficiency. The integrated electronic controls feature diagnostic capabilities to streamline troubleshooting and maintenance, ensuring optimal performance throughout the boiler’s lifespan. Moreover, the boiler's design is compatible with modern building management systems, allowing for seamless integration into existing heating setups.

Overall, the Weil-McLain 88 series stands out for its combination of quality construction, efficient operation, and adaptability to different heating needs. Whether for a commercial building, industrial facility, or institutional application, the Weil-McLain 88 provides a reliable and efficient heating solution that meets the demands of the modern world.
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