Please read before proceeding

PER Series 3 Electric-Hydronic Boilers Installation Instructions

Hazard Definitions

The following defined terms are used throughout these Instructions to bring attention to the presence of hazards of various risk levels, or to important information concerning the life of the product.

Indicates presence of hazards that will cause severe personal injury, death or substantial property damage.

Indicates presence of hazards that can cause severe personal injury, death or substantial property damage.

Indicates presence of hazards that will or can cause minor personal injury or property damage.

Indicates special instructions on installation, operation or maintenance that are important but not related to personal injury or property damage.

Failure to adhere to the guidelines on this page can result in severe personal injury, death or substantial property damage.

When servicing boiler —

•To avoid electric shock, disconnect electrical supply before performing maintenance.

•To avoid severe burns, allow boiler to cool before performing maintenance.

•The boiler contains fiberglass materials. Use care when handling these materials per instructions on page 11 of this manual.

Boiler operation —

•Do not block flow of ventilation air to boiler. Will cause components to overheat.

•Should overheating occur, do not disconnect electrical supply to circulator. Instead, shut off the electrical supply at a location external to the appliance.

•Do not use this boiler if any part has been under water. Immediately call a qualified service technician to inspect the boiler and to replace any part of the control system that has been under water.

Boiler water —

•Do not use petroleum-based cleaning or sealing compounds in boiler system. This can result in substantial property damage.

•Do not use "homemade cures" or "boiler patent medicines". Serious damage to boiler, personnel and/or property may result.

•Continual fresh makeup water will reduce boiler life. Mineral buildup in section reduces heat transfer, overheats cast iron, and causes section failure. Addition of oxygen and other gases can cause internal corrosion. Leaks in boiler or piping must be repaired at once to prevent makeup water.

•Do not add cold water to hot boiler. Thermal shock can cause sections to crack.

Glycol — potential fire hazard —

All glycol is flammable when exposed to high temperatures. If glycol is allowed to accumulate in or around the boiler or any other potential ignition source, a fire can develop. In order to prevent potential severe personal injury, death or substantial property damage from fire and/or structural damage:

•Never store glycol of any kind near the boiler or any potential ignition source.

•Monitor and inspect the system and boiler regularly for leakage. Repair any leaks immediately to prevent possible accumulation of glycol.

•Never use automotive antifreeze or ethylene glycol in the system. Using these glycols can lead to hazardous leakage of glycol in the boiler system.

2	Part number 550-141-396/0801

550-141-396/0801 specifications

The Weil-McLain 550-141-396/0801 is a high-performance boiler designed to meet the heating needs of commercial and residential applications. Renowned for its efficiency and durability, this model features advanced technology that ensures reliable operation while maximizing energy savings.

One of the standout characteristics of the Weil-McLain 550-141-396/0801 is its ability to provide maximum heating output with minimal fuel consumption. Equipped with a powerful burner and efficient heat exchanger, this boiler achieves impressive efficiency ratings, making it an economically sound choice for homeowners and businesses alike. The design also incorporates features that reduce emissions, contributing to a more environmentally friendly operation.

The construction of the boiler features robust materials that enhance its durability. The cast iron heat exchanger is built to withstand extreme conditions while maintaining excellent heat retention and distribution. This not only increases the lifespan of the boiler but also minimizes maintenance costs over time. The unit is designed to operate quietly, ensuring a comfortable environment for occupants.

Advancements in technology are evident in the Weil-McLain 550-141-396/0801's control system. It is equipped with a user-friendly digital control interface that simplifies adjustments and monitoring. Users can easily set temperature levels, track performance, and diagnose issues, which allows for timely maintenance and optimal performance. Additionally, compatibility with various thermostats provides flexibility for tailored heating solutions.

Safety is a critical component of the Weil-McLain 550-141-396/0801. It includes multiple safety features such as a spill switch, low-water cutoff, and a pressure relief valve. These mechanisms ensure safe operation and protect against common boiler-related hazards.

In summary, the Weil-McLain 550-141-396/0801 is an excellent choice for those seeking a reliable, efficient, and durable heating solution. With its advanced technology, robust construction, and emphasis on safety, this boiler not only meets but exceeds the expectations of modern heating needs. Whether for residential or commercial installation, the Weil-McLain 550-141-396/0801 stands out as a preferred option among boiler systems, delivering comfort and efficiency for years to come.

Weil-McLain 550-141-396/0801 Please read before proceeding, Hazard Definitions

Models: 550-141-396/0801