Introduction
The Carlin 6020002S 120V CAD Cell Oil Primary Control is a professional-grade burner control designed for oil-fired heating systems that require precise safety timing, dependable flame detection, and stable electrical performance. Used widely in residential and light commercial oil burners, this control is engineered to meet strict operational and safety standards while remaining easy to integrate into existing systems.
This article provides a complete, original, and in-depth breakdown of the Carlin 6020002S Oil Primary Control, including specifications, performance behavior, wiring logic, safety timing options, compatibility, real-world applications, and buying considerations. All technical data reflects verified manufacturer specifications commonly listed on Amazon product listings and packaging documentation, without including links or external references.
The content is written for HVAC technicians, heating system installers, maintenance professionals, and informed homeowners seeking a reliable replacement oil primary control.
What Is an Oil Primary Control?
An oil primary control is the central safety and operating module in an oil burner system. Its responsibilities include:
- Monitoring flame presence through a CAD cell
- Controlling burner motor and ignition timing
- Shutting down the system in case of ignition failure
- Activating alarms during lockout conditions
The Carlin 6020002S CAD Cell Oil Primary Control performs all these functions with selectable safety timing, robust electrical load handling, and proven reliability.
Overview of the Carlin 6020002S Oil Primary Control
The Carlin 6020002S is a non-programmable, electromechanical oil burner control that operates on standard 120V AC power. It uses a CAD cell flame sensor to verify flame presence and includes 15-second and 30-second Trial for Ignition (TFI) safety timing options.
This model is frequently chosen for its balance of simplicity, safety compliance, and compatibility with a wide range of oil burners.
Key Features and Benefits
Dual Safety Timing Options
The 15-second and 30-second TFI settings allow the control to be matched to burner requirements and local code compliance. This flexibility makes the Carlin 6020002S suitable for both older and newer oil-fired systems.
CAD Cell Flame Detection
The built-in CAD cell circuit ensures accurate flame sensing. If no flame is detected during the trial for ignition, the system enters safety lockout, preventing fuel accumulation and unsafe operation.
Heavy-Duty Electrical Load Capacity
This control is engineered to handle demanding electrical loads, including high inrush currents from burner motors and ignition transformers.
Alarm Contact Output
Integrated alarm contacts allow connection to external alarms or monitoring systems, enhancing safety and system awareness.
Technical Specifications Table
Below is an accurate and clearly organized specification table based on manufacturer and Amazon-listed data.
Electrical and Performance Specifications
| Specification Category | Details |
|---|---|
| Model Number | Carlin 6020002S |
| Product Type | Oil Primary Control |
| Operating Voltage | 120 VAC |
| Frequency | 60 Hz |
| Power Input (Red/White Wire) | 120 VAC, 60 Hz, 9 VA |
| Limit Circuit Input (Black Wire) | 120 VAC, 60 Hz |
| Motor Load Rating | 10 FLA, 60 LRA |
| Ignitor Load Rating | 120 VAC, 60 Hz, 500 VA |
| Flame Detection Type | CAD Cell |
| Trial for Ignition (TFI) | 15 seconds or 30 seconds |
| Alarm Contacts | 24 V AC/DC, 2 Amps |
| Mounting Type | Standard oil burner mounting |
| Application | Residential and light commercial oil burners |
Understanding the Electrical Ratings
Power Input
The 9 VA power consumption ensures low energy usage while maintaining reliable internal control logic. This makes the unit efficient and suitable for continuous seasonal operation.
Motor Load Capacity
With a rating of 10 Full Load Amps (FLA) and 60 Locked Rotor Amps (LRA), the Carlin 6020002S can safely manage the startup and running demands of standard oil burner motors.
Ignitor Load Handling
The 500 VA ignitor capacity allows compatibility with most oil burner ignition transformers, ensuring strong spark generation during startup.
Safety Timing: 15-Second vs 30-Second TFI
One of the defining features of the Carlin 6020002S Oil Primary Control is its selectable safety timing.
15-Second TFI
- Faster shutdown in no-flame conditions
- Often required by newer safety codes
- Reduces oil accumulation risk
30-Second TFI
- Suitable for burners requiring longer ignition stabilization
- Common in older or retrofit systems
- Provides extended startup tolerance
This dual-option design makes the control adaptable without requiring multiple models.
Alarm Contacts and System Monitoring
The built-in alarm contacts rated at 24 V AC/DC, 2 Amps allow the control to interface with:
- Audible alarms
- Visual indicator lights
- Remote monitoring panels
- Building management systems
When a lockout occurs, the alarm circuit activates, notifying users or technicians immediately.
Installation and Wiring Overview
Wiring Simplicity
The Carlin 6020002S uses clearly identified wire colors for straightforward installation:
- Red/White Wire: Power input
- Black Wire: Limit circuit input
- Dedicated terminals for motor, ignitor, and CAD cell
This reduces installation errors and simplifies replacement of older primary controls.
Mounting Compatibility
Designed to fit standard oil burner mounting locations, this control can be installed without special brackets or adapters in most cases.
Typical Applications
The Carlin 6020002S 120V CAD Cell Oil Primary Control is commonly used in:
- Residential oil-fired furnaces
- Oil-fired boilers
- Light commercial heating systems
- Replacement of older Carlin or equivalent controls
Its electrical ratings and safety features make it a versatile solution across multiple system designs.
Comparison with Similar Oil Primary Controls
Advantages Over Older Mechanical Controls
- Faster flame detection
- Improved safety lockout accuracy
- Higher electrical load capacity
- Alarm output capability
Compared to Digital Programmable Controls
- Simpler operation
- Lower cost
- No programming required
- Easier troubleshooting
For many technicians, the Carlin 6020002S represents the ideal balance between modern safety and traditional reliability.
Reliability and Build Quality
Carlin is known for manufacturing durable burner controls. The 6020002S features:
- Heat-resistant housing
- Stable internal circuitry
- Proven CAD cell compatibility
- Long operational lifespan under normal conditions
These qualities contribute to fewer nuisance lockouts and reduced service calls.
Maintenance and Troubleshooting
Routine Maintenance
- Inspect wiring connections annually
- Clean or replace CAD cell as needed
- Verify burner motor and ignitor loads remain within ratings
Common Troubleshooting Indicators
- Lockout with alarm activation usually indicates flame detection failure
- Repeated lockouts may suggest CAD cell contamination or burner ignition issues
- No power conditions often trace back to limit circuit input wiring
The straightforward design makes diagnosis faster for service professionals.
Why Choose the Carlin 6020002S Oil Primary Control?
The Carlin 6020002S stands out for several reasons:
- Accurate CAD cell flame sensing
- Dual TFI safety timing
- High motor and ignitor load capacity
- Integrated alarm contacts
- Trusted brand reputation
- Broad system compatibility
For those seeking a dependable replacement oil primary control without unnecessary complexity, this model remains a top-tier choice.
Final Thoughts
The Carlin 6020002S 120V CAD Cell Oil Primary Control is a well-engineered, safety-focused component designed to support reliable oil burner operation. Its electrical strength, safety timing flexibility, and alarm integration make it suitable for both residential and light commercial heating systems.
Whether used as a direct replacement or as part of a new installation, this oil primary control delivers consistent performance, long-term durability, and compliance with modern safety expectations.