Triangle Tube Prestige Solo 399 Instruction Manual

Manual Triangle Tube Prestige Solo 399 Instruction Manual

Triangle Tube Prestige Solo 399 Instruction Manual

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Triangle Tube Prestige Solo 399

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Triangle Tube Prestige Solo 399

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Triangle Tube Prestige Solo 399 Instructions

Here we offer the Triangle Tube Prestige Solo 399 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 399, we suggest checking the Frequently Asked Questions (FAQs) section of this manual.


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Triangle Tube Prestige Solo 399 Boiler Specifications

Feature Specification
Fuel Type Natural Gas / Propane
Input Rating (Modulating) 72,500 - 399,000 BTU/hr
Output Rating 379,000 BTU/hr
Net AHRI Rating 330,000 BTU/hr
Combustion Efficiency 94.1%
Thermal Efficiency 95.1%
AFUE 95%
Shipping Weight 216 lbs / 98 kg
Boiler Width (H) 24-7/8 inches (632 mm)
Boiler Height (G) 39-3/8 inches (1000 mm)
Boiler Depth (M) 23-5/8 inches (600 mm)
Pressure Relief Valve Connection 3/4” NPSC
Combustion Air Inlet 4”
Vent Outlet 4”
Boiler Return Connection 1-1/2” NPT
Gas Connection 1” NPT
Boiler Supply Connection 1-1/2” NPT
Minimum Allowable Flow Rate (Full Input) 19 GPM
Operating Pressure (Typical Residential) 12 psig
Maximum Operating Pressure 25 psig
Minimum Operating System Pressure (LWCO) 10 psig (shuts down at 7.2 psi)
Boiler Water Volume 7 gallons (26 L)
Electrical Service 120 VAC / 15A

Triangle Tube Prestige Solo 399 Details

The Triangle Tube Prestige Solo 399 is a highly efficient condensing boiler, designed for advanced hydronic heating systems. Its superior performance is largely attributed to the proprietary CTRLMax (formerly ACVMax) Boiler Management System, which intelligently monitors and controls heat delivery for optimal efficiency. This system provides a user-friendly graphical interface, simplifying navigation and access to critical operational data.

Beyond its core specifications, the Prestige Solo 399 boasts a versatile EZ Setup feature, enabling quick customization of heating and domestic hot water (DHW) settings. Installers can easily configure parameters like outdoor reset curves, fixed setpoints, and Warm Weather Shutdown temperatures, adapting the boiler to various application requirements without extensive manual adjustments.

For enhanced flexibility, the boiler offers multiple control inputs, including two central heating (CH) call inputs, each capable of having its own outdoor reset curve. This allows for sophisticated zone management in multi-temperature systems, maximizing comfort and energy savings by matching boiler output precisely to demand.

Safety is paramount with integrated features like a factory-installed pressure sensor type Low Water Cut Off (LWCO), which monitors system pressure and provides additional low water protection by sensing water temperatures. The boiler also includes a robust Freeze Protection feature that activates at 46°F (8°C) to prevent boiler damage, although it's crucial to note it protects the boiler itself, not the entire heating system.

The Prestige Solo 399 is engineered for modern installations, supporting direct venting and sealed combustion. It allows for cascade functionality, enabling up to six units to operate cohesively as a single, powerful heating system without external controllers. Additionally, it integrates with building management systems (BMS) via a Modbus interface for comprehensive control and monitoring.

Its heat exchanger is designed to operate effectively in a condensing mode, making it highly suitable for radiant heating applications, even those utilizing non-oxygen barrier tubing. The unit automatically derates its input by approximately 2% for every 1,000 feet of altitude, ensuring consistent performance without requiring manual adjustments to the burner system.

Maintenance is made simpler through clearly defined schedules for both homeowners and qualified service technicians. This includes daily, monthly, and bi-annual checks for owners, and comprehensive annual servicing by professionals to ensure long-term reliability and efficiency. Critical components like the condensate drain assembly, which must remain filled with water, are highlighted for attention.

Frequently Asked Questions (FAQs)

Can't find the answer you need? Here are some frequently asked questions about the Triangle Tube Prestige Solo 399, and we answer them below.


What type of fuel does the Triangle Tube Prestige Solo 399 use?
The Prestige Solo 399 is designed to operate with both Natural Gas and Propane, with specific orifice requirements for each fuel type.

What is the Annual Fuel Utilization Efficiency (AFUE) of this boiler?
The Prestige Solo 399 boasts an impressive AFUE rating of 95%, indicating high energy efficiency and potential for energy savings.

Is an outdoor reset control a mandatory feature for the Prestige Solo 399?
While not strictly mandatory in all cases, the use of the outdoor reset function is highly recommended to optimize boiler efficiency by adjusting water temperature based on outdoor conditions. Exceptions are typically for external energy management systems, non-space heating use, larger modular systems, or units with tankless coils.

What is the purpose of the CTRLMax (ACVMax) Boiler Management System?
The CTRLMax system monitors and controls the boiler to provide heat as efficiently as possible, featuring a user-friendly graphical display for easy navigation, status monitoring, and quick setup customization.

What are the recommended clearances for installing the Prestige Solo 399?
The Prestige Solo 399 is approved for zero clearance to combustibles, excluding vent and boiler piping. However, for serviceability, recommended clearances are 24 inches (610 mm) at the top and front, 24 inches (610 mm) at the bottom, and 6 inches (153 mm) at the sides.

Are carbon monoxide detectors required with this boiler?
Yes, Triangle Tube requires the installation of a minimum of two hard-wired carbon monoxide detectors with an alarm and battery backup: one in the mechanical room and another in the living area outside sleeping areas.

Can the Prestige Solo 399 be used with radiant heating systems?
Absolutely. Its heat exchanger design allows for operation in a condensing mode, which is highly beneficial for radiant heating applications, and it can even be installed on systems with non-oxygen barrier tubing (though not with a SMART indirect water heater).

How does the boiler's Low Water Cut Off (LWCO) device work?
The Prestige Solo 399 is equipped with a factory-installed pressure sensor type LWCO, which continuously monitors system pressure. The boiler's control system also senses water temperatures to provide additional protection against low water conditions.

What happens if the system water pressure drops too low?
The system will issue a "Low Water Pressure" warning if the pressure drops to 10.1 psi. If the pressure falls below 7.2 psi, the Prestige Solo 399 will initiate a lockout (E37), preventing operation until the pressure is restored to a normal range (e.g., 14.5 psi).

Can the boiler's firing rate be controlled by an external system?
Yes, the Prestige Solo 399 can directly accept an analog 0-10 VDC signal from an external modulating boiler controller to manage its firing rate. Proper wiring and programming within the CTRLMax system are required.

How often should this boiler be maintained?
Owner maintenance is recommended daily, monthly, and every 6 months. A qualified service technician should perform comprehensive maintenance and inspection on an annual basis to ensure optimal performance and longevity.

What should I do if I smell gas near the boiler?
If you smell gas, do not try to light any appliance, do not touch any electrical switch, and do not use any phone in your building. Immediately call your gas supplier from a neighbor's phone and follow their instructions. If you cannot reach them, call the fire department.

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