Dayton 3VH18A, 3VH19A instruction manual Troubleshooting Chart

Models: 3VH19A 3VH18A

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Dayton Operating Instructions and Parts Manual

Model 3VH18A - Propane

Model 3VH19A - Natural Gas

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

 

 

 

 

 

 

 

 

Burner fails to light

1. (Propane model only) Propane supply

1. (Propane model only) Open propane

 

 

 

 

 

valve closed on propane tank(s)

supply valve slowly

 

 

 

 

 

2. (Propane model only) Excess flow check

2. (Propane model only) Close propane

 

 

 

 

 

valve closed

supply valve on propane tank and

 

 

 

 

 

 

reopen slowly

 

 

 

 

 

3. Blockage in burner orifice

3. Replace burner orifice

 

 

 

 

 

4. Piezo ignition system not sparking

4. Assure ignitor electrode gap is .15".

 

 

 

 

 

 

Check wire lead for damage. Replace

 

 

 

 

 

 

piezo ignitor and/or ignitor electrode as

 

 

 

 

 

 

necessary

 

 

 

 

 

 

Burner lights but goes out when automatic

1. Not enough warm-up time

1. Relight, hold automatic control valve

 

control valve button is released

 

button in for 45 seconds

 

 

 

 

 

2. Low gas pressure

2. (Propane model only) Check propane

 

 

 

 

 

 

tank(s) for proper gas supply

 

 

 

 

 

 

(Natural gas model only) Check natural

 

 

 

 

 

 

gas supply

 

 

 

 

 

3. Thermocouple loose or needs to be

3. Tighten connection or replace thermo-

 

 

 

 

 

replaced

couple

 

 

 

 

 

4. Automatic control valve needs to be

4. Replace automatic control valve

 

 

 

 

 

replaced

 

 

 

 

 

 

 

Burn rate is low, emitter does not glow

1. Burner control is on Low

1. Slightly depress control knob and rotate

 

 

 

 

 

 

counterclockwise to the HIGH position

 

 

 

 

 

2. Blockage in burner orifice

2. Replace burner orifice

 

 

 

 

 

3. Low gas pressure

3. Check gas supply; check regulator

 

 

 

 

 

 

output

 

 

 

 

 

4. Low fuel supply

4. Consult gas supplier

 

 

 

 

 

 

 

 

Flames are extremely high and coming from emitter

1.(Natural gas model only) Unit has been connected to propane gas instead of natural gas

1.(Natural gas model only) Check gas source and replace with natural gas supply

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Version B - For Reduction

G016.J

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Dayton 3VH18A, 3VH19A instruction manual Troubleshooting Chart

3VH19A, 3VH18A specifications

Dayton 3VH18A and 3VH19A are advanced ventilation systems designed to meet the needs of various industrial and commercial applications. Both units are part of a series that prioritizes energy efficiency, reliability, and versatile performance, making them suitable for everything from warehouses to manufacturing facilities.

The Dayton 3VH18A is a direct drive fan with a robust motor that operates at a speed of 1,050 RPM, providing an airflow capacity of approximately 1,400 CFM. Its simple yet effective design enables effective air circulation, ensuring that spaces are adequately ventilated. The fan is equipped with a lightweight but durable metal housing, which can withstand the rigors of continuous operation.

In comparison, the Dayton 3VH19A features a slightly higher airflow capacity of 2,300 CFM, making it ideal for larger spaces. This fan also operates at 1,050 RPM, but its larger diameter impeller allows it to push a greater volume of air, enhancing its efficiency. Both models incorporate high-quality ball bearings, promoting longevity and low maintenance needs.

One of the standout technologies of both 3VH18A and 3VH19A is their energy efficiency. The fans are designed to minimize power consumption while maximizing airflow, resulting in lower operational costs for end-users. They also adhere to stringent industry standards for efficiency and safety, making them a reliable choice for various applications.

Another feature is their versatility in installation options. Both units can be mounted on walls or ceilings, allowing for flexible positioning depending on the specific ventilation requirements of a space. Additionally, they are compatible with various control systems, enabling users to integrate them seamlessly into existing HVAC systems for optimized climate control.

In terms of noise levels, both the Dayton 3VH18A and 3VH19A operate quietly, which is essential in environments where noise reduction is a priority, such as schools and healthcare facilities. This focus on low noise output contributes to a more comfortable environment for occupants and workers.

Overall, Dayton 3VH18A and 3VH19A models stand out due to their combination of powerful airflow, energy efficiency, and quiet operation. These features make them valuable assets for enhancing indoor air quality and ensuring comfort in a range of settings. Whether for industrial use or commercial applications, these ventilation systems fulfill the vital role of effective air management, contributing to healthier environments.