Weil-Mclain Ultra 155 Serie 4 Boiler Instruction Manual
Weil-Mclain Ultra 155 Serie 4 Boiler
Weil-Mclain Ultra 155 Serie 4 Boiler
Weil-Mclain Ultra 155 Serie 4 Boiler
Weil-Mclain Ultra 155 Serie 4 Boiler
Weil-Mclain Ultra 155 Serie 4 Instructions
Here we offer the Weil-Mclain Ultra 155 Serie 4 Boiler manual completely free and in English. We have cataloged this manual in the Boilers section on Manualverse, and it has been rated by 1 users with an average rating of 5. If you have any specific questions about Weil-Mclain Ultra 155 Serie 4 Boiler, we suggest checking the Frequently Asked Questions (FAQs) section of this manual.
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Weil-Mclain Ultra 155 Serie 4 Boiler Specifications
| Feature | Ultra 155 Serie 4 |
|---|---|
| Boiler Model | Ultra 155 |
| Fuel Type | Natural Gas/LP |
| Input (MBH) | 155 |
| DOE Heating Capacity (MBH) | 141 |
| Net I=B=R Rating (MBH) | 123 |
| AFUE (%) | 95.0 |
| Max. Operating Pressure (Water) (PSI) | 30 |
| Max. Operating Temperature (°F) | 200 |
| Min. Inlet Gas Pressure (Nat.) (WC) | 3.5 |
| Max. Inlet Gas Pressure (Nat.) (WC) | 10.5 |
| Min. Inlet Gas Pressure (LP) (WC) | 8 |
| Max. Inlet Gas Pressure (LP) (WC) | 13 |
| Vent Size (in.) | 3 |
| Water Connection Size (NPT) | 1-1/4 |
| Electrical Characteristics (V/Hz/Amps) | 120/60/12 |
| Weight (Lbs.) | 139 |
| Shipping Weight (Lbs.) | 150 |
| Height (in.) | 32.75 |
| Width (in.) | 21.25 |
| Depth (in.) | 18.0 |
| Boiler Circulator Model | Taco 0014 |
Weil-Mclain Ultra 155 Serie 4 Boiler Details
The Weil-McLain Ultra 155 Serie 4 Boiler is distinguished by its sophisticated U-Control Module, featuring a 3.5-inch LCD display. This advanced system allows for three boiler priorities and multiple preset configurations, enhancing versatility across heating demands. It supports multi-boiler setups, incorporates alarm control, and manages precise ignition. The U-Control intelligently integrates high limit and modulating temperature control, ensuring peak energy efficiency and allowing direct management of up to three circulators simultaneously, simplifying system operation and optimization.
At its core, the Ultra 155 Serie 4 boasts a robust cast aluminum block heat exchanger and a premium stainless steel burner with woven steel fiber mesh for the 155 model, guaranteeing durability and efficient heat transfer. Its advanced combustion system includes direct spark ignition for reliable starts, a variable speed blower assembly, and a Venturi mixing system with an air silencer. A negative pressure regulated gas valve fine-tunes the air-fuel mixture, contributing to exceptional efficiency and reduced operational noise.
Integrated sensors throughout the Ultra 155 Serie 4 continually monitor critical parameters such as inlet and outlet water temperatures, flue gas temperature, and outdoor and system water temperatures. This comprehensive sensing array enables precise control. For safety, the boiler automatically shuts down if air or vent pathways are blocked. Crucially, the manual emphasizes strict adherence to safety guidelines, including warnings against storing flammable materials nearby, preventing carbon monoxide exposure, and protecting against contaminated combustion air.
The U-Control display offers a user-friendly interface for managing basic settings like date and time, and for manual resets following a system lockout. Environmental protection is a key design consideration, with explicit warnings against combustion air contamination. The manual provides a detailed list of harmful chemicals (e.g., chlorine, fluorine compounds) and specific areas to avoid (laundry rooms, swimming pools) to prevent acid corrosion and severe boiler damage. Proper boiler placement or re-routing of air/vent terminations is advised.
Designed for ease of maintenance and long-term reliability, the Ultra 155 Serie 4 features a fully removable front jacket and adjustable legs. An accessible on/off power switch and a condensate trap with a drain tee assembly simplify routine checks. Annual professional servicing is mandatory for optimal performance and system reliability, complementing owner-performed daily, monthly, and periodic inspections. The manual provides detailed instructions for these checks, including verifying boiler area, air openings, and pressure/temperature gauges, ensuring consistent operation.
Maintaining proper boiler water chemistry is vital; the manual warns against petroleum-based compounds, "homemade cures," and excessive fresh makeup water, which can damage components and shorten boiler life. Only hydronic-specific freeze-protection fluids are approved. For customization and enhanced functionality, optional equipment includes a wall mounting kit, a Low Water Cutoff (LWCO), a Concentric Vent Kit, and a Condensate Neutralizer Kit. An Ultra Easy-Up Manifold and water treatment inhibitor kits are also available, catering to specific installation and maintenance needs.
Frequently Asked Questions (FAQs)
Can't find the answer you need? Here are some frequently asked questions about the Weil-Mclain Ultra 155 Serie 4 Boiler, and we answer them below.
