Triangle Tube Prestige Solo 250 Instruction Manual
Triangle Tube Prestige Solo 250
Triangle Tube Prestige Solo 250
Triangle Tube Prestige Solo 250 Instructions
Here we offer the Triangle Tube Prestige Solo 250 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 Triangle Tube Prestige Solo 250, we suggest checking the Frequently Asked Questions (FAQs) section of this manual.
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Triangle Tube Prestige Solo 250 Boiler Specifications
| Model | Solo 250 |
| Fuel Type | Natural Gas / Propane |
| Input Capacity (Modulating) | 43,600 - 240,000 BTU/hr |
| Heating Capacity (DOE) | 222,000 BTU/hr |
| Net AHRI Rating | 193,000 BTU/hr |
| Annual Fuel Utilization Efficiency (AFUE) | 95% |
| Shipping Weight | 140 lbs / 63.5 kg |
| Boiler Width | 19-3/4” [502 mm] |
| Boiler Height | 36-9/16” [928 mm] |
| Boiler Depth | 17-5/16” [440 mm] |
| Gas Connection | 3/4” NPT |
| Boiler Supply/Return Connections | 1-1/4” NPT |
| Pressure Relief Valve Connection | 3/4” NPSC |
| Combustion Air Inlet Diameter | 3” |
| Vent Outlet Diameter | 3” |
| Minimum Allowable Flow Rate (at full input) | 12 GPM |
Triangle Tube Prestige Solo 250 Details
The Triangle Tube Prestige Solo 250 is a high-efficiency condensing boiler designed for versatile heating applications. Central to its operation is the intuitive CTRLMax/ACVMax Boiler Management System. This advanced control offers a graphical display for easy navigation, eliminating the need for complex code charts. Users can access status information, adjust settings through EZ Setup menus, and review lockout history with clear, plain-English messages.
The control system supports two central heating call inputs, each with customizable outdoor reset curves, maximizing efficiency by adjusting boiler water temperature based on external conditions. It also features a Domestic Hot Water (DHW) call input with optional priority, ensuring hot water availability when needed. For larger or more complex setups, the system allows for mixing valve control in dual temperature heating systems and offers a cascade function to operate up to six Prestige Solo boilers as a single integrated unit. A Modbus interface further enables integration with building management systems.
Safety is paramount with the Prestige Solo 250, incorporating several critical features. It includes a factory-installed Low Water Cut Off (LWCO) pressure sensor to prevent operation in low water conditions, automatically shutting down if pressure falls below 7.2 psi. A high boiler temperature limit of 210°F (99°C) provides overheating protection. Additionally, an automatic freeze protection feature activates at 46°F (8°C) and fires the burner at 42°F (6°C) to protect the boiler itself, ceasing at 60°F (15°C).
Installation and owner maintenance are crucial for the unit's longevity and warranty. The boiler is designed for wall mounting using a provided bracket, with specific structural requirements to support its weight. While approved for zero clearance to combustibles (excluding vent and piping), recommended service clearances are 24 inches at the top, front, and bottom, and 6 inches at the sides. Annual inspection and service by a qualified technician are mandatory to ensure optimal performance and system reliability.
Owners are instructed to perform routine checks, including daily inspection of the surrounding area for flammable materials and clear ventilation openings. Monthly tasks involve checking vent and combustion air piping, the pressure relief valve, and the condensate drain system. Every six months, owners should inspect water and gas piping for leaks and verify the proper functioning of carbon monoxide detectors. The condensate drain assembly must remain filled with water to prevent flue gas emissions, requiring periodic inspection and refilling.
Proper system water chemistry is vital, with boiler fluid pH levels needing to be between 6.0 and 8.0 and hardness below 7 grains. The use of petroleum-based cleaning or sealing compounds is strictly prohibited as they can damage seals and gaskets, leading to system failure. The boiler can operate on either natural gas (factory-configured) or propane (conversion kit supplied), with specific orifice requirements for each fuel type. Contaminated combustion air, particularly from chlorine or fluorine compounds, can severely corrode internal components; thus, relocation of the air intake may be necessary in affected environments.
Frequently Asked Questions (FAQs)
Can't find the answer you need? Here are some frequently asked questions about the Triangle Tube Prestige Solo 250, and we answer them below.







