Control Supplement — Standing Pilot Boilers

with float-type low water cutoff

For your safety, turn off electrical power supply and turn off external gas supply valve before attempting to work on the boiler. Failure to comply can cause severe personal injury, death or substantial property damage.

1. Mount and wire controls per wiring diagram, page

10, and Figure 4.

Figure 4

 

a.

Attach junction box inside left jacket panel with

 

 

#8-32 x ½" machine screws and green ground

 

 

nuts provided.

 

b.

Install transformer with plug-in relay receptacle

 

 

and relay. In Canada, use chain and hook strain

 

 

relief.

 

c.

Operating and limit circuit wiring must be 18

 

 

gauge or heavier (as supplied with the boiler).

 

2. Bring supply wiring to boiler. Must be 14 gauge or heavier.

Anticipator settings

Water — 0.40 amps, single zone systems only. For multiple zones using zone valves or circulators, refer to component manufacturer’s instructions for application, wiring and thermostat heat anticipator setting.

Steam — 0.20 amps.

Checkout procedure

1.Follow all instructions in the boiler manual, including the Checkout procedure, before proceeding.

2.See page 12 for “Lighting instructions”. Raise room thermostat to call for heat.

3.Gas valve will open and main burners will ignite.

4.Lower thermostat setting. Main burner flames will go out.

5.Repeat steps 1 through 3 several times to verify operation.

6.Return thermostat to normal setting.

Part Number 550-110-031/0605

11

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Weil-McLain EGH-85, PFG-6, EGH-95 manual With float-type low water cutoff, Checkout procedure
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EGH-85, EGH-95, PFG-6 specifications

Weil-McLain is a recognized leader in the manufacturing of high-efficiency commercial boilers, and among its notable offerings are the PFG-6, EGH-95, and EGH-85 models. Each of these units exemplifies advanced engineering, robust performance, and energy efficiency, addressing diverse heating needs across commercial and residential applications.

The Weil-McLain PFG-6 is a powerful gas-fired boiler designed specifically for commercial applications. It features a 1,250,000 BTU input, making it suitable for larger buildings with substantial heating demands. The PFG-6 uses a heavy-duty heat exchanger for improved heat transfer and durability, ensuring dependable operation even under high-load conditions. This model is equipped with advanced controls that provide precise temperature management and system diagnostics, promoting optimal performance and energy efficiency.

The EGH-95 and EGH-85 models represent Weil-McLain's commitment to high-efficiency heating solutions. These units utilize condensing technology, recovering latent heat from flue gases to achieve efficiency ratings of up to 95% AFUE (Annual Fuel Utilization Efficiency). This high-efficiency aspect translates into substantial energy savings and reduced carbon emissions, making them an environmentally friendly choice for heating systems.

Both the EGH-95 and EGH-85 feature durable cast iron heat exchangers that not only enhance performance but also provide exceptional resistance to corrosion and wear. The EGH series also incorporates a unique multi-stage burner design, which optimizes fuel usage, reduces operational noise, and increases overall system reliability. Their compact design allows for easy installation in confined spaces, making them a versatile option for various construction layouts.

Another key characteristic shared by these models is their user-friendly control systems. With touch-screen interfaces and advanced boiler management systems, users can easily monitor performance, make adjustments, and conduct maintenance checks. This ease of use helps extend the lifespan of the equipment while ensuring efficient operation.

Overall, the Weil-McLain PFG-6, EGH-95, and EGH-85 models highlight the company's dedication to producing high-quality, efficient heating solutions tailored to meet the evolving demands of today’s building environments. Their cutting-edge technology, efficient design, and reliable performance establish Weil-McLain as a top choice for those seeking dependable heating solutions.
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