🔥 Beckett 7520U A/C Ready Kit – Smart Thermostat Compatible

Upgrade your oil furnace or boiler with modern smart thermostat control. The Beckett 7520U A/C Ready Kit combines advanced burner control with Wi-Fi thermostat compatibility, giving homeowners and HVAC technicians a reliable, efficient, and smart heating solution.

💡 Product Overview

The Beckett 7520U A/C Ready Kit is a complete upgrade solution for residential and light commercial oil-fired heating systems. It combines the GeniSys 7505 Primary Control with the A/C Ready Transformer Kit (51950U) to provide reliable, energy-efficient operation while supporting internet-connected thermostats.

With the included “C” terminal, homeowners can power smart thermostats such as Nest, Ecobee, or Honeywell Wi-Fi units, enabling remote access, scheduling, and system monitoring via smartphone or tablet.

Key innovations include a redesigned DC relay circuit, preventing buzzing, chattering, and premature wear, ensuring long-term reliability. The kit mounts universally under most primary controls, allowing for quick and hassle-free installation.

The 7520U also adds air-conditioning capabilities to compatible furnaces and serves as a cost-effective replacement for older Honeywell R8184M Primary Controls. When used with BeckettLink Pro or the 52082 Contractor Tool, it allows programmable pre/post purge times, storing diagnostic history of the last 15 cycles for easier troubleshooting.

Why homeowners and technicians love it:

• Full smart thermostat integration for remote system control

• Reliable, safe burner operation with advanced GeniSys monitoring

• Reduced maintenance and troubleshooting thanks to LED diagnostics

• Air-conditioning support for compatible systems

• Cost-effective replacement for older primary controls

📦 Kit Includes – Detailed

🔧 1. GeniSys 7505 Primary Control (P/N 7505A0000U)

The GeniSys 7505 is a 120 VAC primary safety control for oil burners. It regulates the burner motor, igniter, and optional solenoid valve using a cad cell flame sensor.

Key Details:

• Voltage: 120 VAC, 60 Hz

• Lockout Time: 15 seconds

• Ignition Type: Interrupted or Intermittent

• Flame Sensor: Cad cell for accurate detection

• Diagnostics: Three LED indicators for burner status

• Programmable: Pre/post purge timing via BeckettLink Pro or 52082 Contractor Tool

• Technician Pump Prime mode for servicing

• Universal mounting fits most primary controls

Benefits:

• Reliable flame detection reduces lockouts

• Compatible with oil furnaces and boilers

• Simplifies maintenance and troubleshooting

⚡ 2. A/C Ready Transformer Kit (P/N 51950U)

The A/C Ready Transformer Kit powers connected smart thermostats, providing the “C” terminal required for Wi-Fi operation.

Key Details:

• Input Voltage: 120 VAC

• Output Voltage: 24 VAC

• Power Rating: 40 VA

• Mounting: Fits under most primary controls

• Compatible with Nest, Ecobee, Honeywell Wi-Fi thermostats, and more

Benefits:

• Enables remote thermostat control

• Provides stable, reliable power for connected devices

• Works seamlessly with GeniSys 7505 for complete system control

✅ Combined Kit Advantages

Together, the GeniSys 7505 and A/C Ready Transformer Kit:

• Enable smart thermostat operation and Wi-Fi control

• Improve system safety and reliability

• Add air-conditioning support to compatible oil furnaces

• Simplify upgrades without full system replacement

• Reduce maintenance with intelligent diagnostics and monitoring

⚙️ Features & Benefits

• Smart Thermostat Ready: “C” terminal included

• Universal Mounting: Fits under most primary controls

• Redesigned DC Relay Circuit: Prevents buzzing and chattering

• Air-Conditioning Support: Adds A/C capability

• Economical Replacement: For older Honeywell R8184M controls

• Advanced Burner Control: LED diagnostics, interrupted/intermittent ignition

• Programmable: Pre/post purge setup via BeckettLink Pro or 52082 Contractor Tool

⚙️ Tech Specs

⚠️ Common Symptoms of a Faulty Control

• Burner fails to start or frequent lockouts

• Irregular flame signal or no ignition

• Thermostat not communicating (missing “C” terminal)

• Buzzing or chattering transformer noise

• LED diagnostic lights unresponsive

❓ Frequently Asked Questions

Q: Can I use this kit with Nest, Ecobee, or other smart thermostats?
✅ Yes, the included “C” terminal powers internet-connected thermostats.

Q: Can it replace older Honeywell R8184M Primary Controls?
✅ Yes, it’s a cost-effective replacement when paired with the GeniSys 7505.

Q: What voltage does the transformer provide?
✅ Input: 120 VAC, Output: 24 VAC, 40 VA power rating.

Q: Is this kit DIY-installable?
⚠️ Professional installation by a qualified HVAC technician is strongly recommended.

🧠 Note

• Verify voltage and thermostat wiring before installation.

• Universal mounting fits most primary controls.

• Compatible with oil furnaces and boilers.

• For high-humidity environments, consider the potted version (Beckett 7575).