Dayton Operating Instructions and Parts Manual

3VH19

Dayton® Natural Gas

Construction Heater

Troubleshooting Chart

 

 

 

Never attempt to service heater while it is connected to gas supply, operating, or hot. Severe burns can

 

 

 

 

 

 

 

 

occur.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Symptom

Possible Cause(s)

Corrective Action

 

 

Pilot fails to light

1. Natural gas supply valve closed on gas

1. Open natural gas supply valve slowly

 

 

 

 

 

supply

 

 

 

 

 

 

 

2. Allow several minutes to purge air with

 

 

 

 

 

2. Air in gas line

automatic control valve button depressed

 

 

 

 

 

3. Blockage in pilot orifice

3. Replace pilot orifice

 

 

 

 

 

4. Piezo ignition system not sparking

4. Adjust ignitor electrode gap to .120".

 

 

 

 

 

 

Check wire lead for damage. Replace

 

 

 

 

 

 

piezo ignitor and/or ignitor electrode as

 

 

 

 

 

 

necessary

 

 

 

 

 

 

 

Pilot lights but goes out when control

1. Not enough warm-up time

1. Relight, hold automatic control valve

 

 

valve knob is released

 

button in 45 seconds

 

 

 

 

 

2. Low gas pressure

2. Check natural gas for proper gas supply

 

 

 

 

 

3. Thermocouple loose or needs to be

3. Tighten connection or replace thermo-

 

 

 

 

 

replaced

couple

 

 

 

 

 

4. Control valve needs to be replaced

4. Replace control valve

 

 

 

 

 

 

 

Maximum Burn rate is low;

1. Main burner valve not fully open

1. Fully open main burner valve by turning

 

 

Emitter not glowing

 

the valve handle towards ON position

 

 

 

 

 

 

until it stops

 

 

 

 

 

2. Plugged gas orifices

 

 

 

 

 

 

 

2. Replace gas orifice

 

 

 

 

 

3. Low gas pressure

 

 

 

 

 

 

 

3. Consult natural gas supplier; check

 

 

 

 

 

 

regulator output

 

 

 

 

 

 

 

Soot forming inside heater,

1. Main burner valve not fully open

1. Adjust main burner valve slowly

 

 

flame 100% yellow

 

towards ON position

 

 

 

 

 

2. Low gas pressure

2. Consult natural gas supplier

 

 

 

 

 

 

 

 

Flames are extremely high. Coming out of louvers

1.Unit was connected to LP gas instead of natural gas

1.Check gas source, replace with natural gas supply

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Dayton 3VH19 manual Troubleshooting Chart
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3VH19 specifications

Dayton 3VH19 is a powerful and versatile HVAC fan, renowned for its high efficiency and reliable performance. Designed primarily for ventilation systems, it serves a variety of applications in both residential and commercial settings. This fan is favored for creating a comfortable environment by ensuring optimal airflow and temperature control.

One of the key features of the Dayton 3VH19 is its robust construction. Crafted with high-quality materials, it is built to withstand the rigors of continuous operation. The fan is equipped with a sturdy steel housing that enhances durability and helps reduce vibration during operation. This ensures quiet performance, making it suitable for use in noise-sensitive environments.

The Dayton 3VH19 is powered by a reliable electric motor that provides a high level of efficiency. It operates on a standard voltage and is designed with energy conservation in mind, which helps to lower electricity costs while delivering powerful airflow performance. The efficient motor also contributes to the fan's longevity, reducing the need for frequent maintenance.

This model features several design innovations that enhance its functionality. Among them is the adjustable speed control, which allows users to modify the airflow to meet specific needs. Whether it's for cooling, heating, or exhausting stale air, the Dayton 3VH19 can be tailored to fit varying requirements, making it highly versatile.

The fan's installation is straightforward, with integrated mounting brackets that provide flexibility in placement. This easy installation process is complemented by its lightweight design, allowing for hassle-free setup in multiple contexts.

Another important characteristic of the Dayton 3VH19 is its safety features. The fan is designed with overload protection, which automatically shuts off the motor in the event of excessive heat, thus preventing damage. Additionally, the grille safeguards against accidental contact with the blades, making it a safe choice for spaces frequented by people.

In conclusion, the Dayton 3VH19 is a top-tier HVAC fan that combines efficiency, durability, and user-friendly features. Its robust design and innovative technologies make it an excellent choice for maintaining airflow in various applications, ensuring enhanced comfort and functionality in every environment.
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