- Cooling Parts
- Heating Parts Service
- brass fittings-Heating Parts Service
- Commercial Burner Controls
- Control Boards-Heating Parts Service
- Draft Inducers-Heating Parts Service
- electric heat parts
- electrical service
- fan and limit controls
- Flame Sensor
- Flue Collector Box
- Gas Regulators
- Gas Valves
- gaskets
- heat exchangers
- ignition components
- Ignitors
- manifold and burners
- Motors-Heating Parts
- OEM Parts-Heating Parts Service
- pressure switches-Heating Parts Service
- relays-Heating Parts Service
- Specialty Controls
- Specialty-Heating Parts Service
- Thermocouples
- Transformers
- venting materials
- Motor Accessories
- Motors
- Compressors
- Controls/Accessories
- Accumulators and Receivers
- Capacitors-Controls/Accessories
- Capillary Tubing
- Defrost Controls
- Drain Pan / Cable Heaters
- Expansion Valves-Controls/Accessories
- Filter Driers
- Miscellaneous-Controls/Accessories
- Motors-Controls
- Overload
- Pressure Controls
- Refrigeration Valves
- Relays-Controls/Accessories
- Relief valves-Controls
- Sight Glasses and Moisture Indicators-Accessories
- Solenoid Valves
- Temperature Controls
- Vibration Eliminators
- Equipment Refrigeration
- Refrigerant and Oils
- Chemicals
- Chimney and Venting
- Electrical
- Installation
- Adhesives-Installation
- Brazing and Soldering Supplies
- Capacitors-Installation
- Caulk and Sealants
- Condensate Drain Pans
- Condensate Management
- Condensate Pumps
- Drain Tube and Fittings
- Duct and Pipe Hangers
- Duct Connectors and Damper Hardware
- Duct Sealants
- Equipment Pads and Stands
- Hardware, Fasteners, and Hangers
- Hose Clamps
- Markers & Paint
- Miscellaneous-Installation
- Roof Penetration Products
- Tape
- Thread Sealants
- Vibration Absorbers and Pads
- Maintenance
- Pipe, Fittings, and insulation
- Black Pipe & Fittings
- Black Pipe and Fittings Accessories
- Copper Fittings
- Copper Pipe
- Copper Press Fittings
- Flexible Gas Pipe Fittings including Insulation
- Galvanized Pipe and Fittings
- HVACR Brass fittings
- Linesets
- LOKRING
- Pipe Insulation
- Push Fit Fittings
- PVC Pipe and Fittings
- PVC Pipe and Fittings Accessories
- Specialty Supplies

LOW GWP REFRIGERANT CERTIFICATION
This is a six-hour refrigerant safety training with an A2L certification exam included.
• Refrigerant safety training
• A2L certification exam
• Refrigerant safety awareness
• Why HFCs are being phased down
• A2L refrigerant charging, recovery, and evacuation
• Leak detection equipment
• Flammability and ignition mitigation requirements
Class Fee: $135.00
Class Length: One day
Instructor: Troy Rybicki, Chris Jewel, or Kevin McCratic Included: Course materials, lunch, and refreshments
Registration: 7:45 a.m., Class: 8 a.m. to 2 p.m.
This time includes a four-hour presentation, a half-hour break for lunch, and up to one and a half hours for individuals to take the exam.
May 6, 2025 GWB Crown Point, 11200 Delaware Parkway, Crown Point, IN
May 7, 2025 GWB Fishers*, 9004 Technology Dr, Fishers, IN
May 8, 2025 Coyote Creek Golf Club, 4935 Hillegas Rd, Ft. Wayne, IN
June 3, 2025 GWB Cicero*, 5430 W Roosevelt Road, Chicago, IL
Jun 4, 2025 GWB Aurora*, 945 Aurora Avenue, Aurora, IL
June 5, 2025 GWB Tinley Park*, 7635 W 183rd Street, Tinley Park, IL
ALLIED R-454B 19 SEER HEAT PUMPS
Topics
• Installation and set-up of A2L equipment
• Requirements for low GWP refrigerant systems
• R-454B charging procedures
• New design features to meet safety guidelines
• Refrigerant charge based on total conditioned space
• Proper installation of refrigerant detection system (RDS)
• How to apply the indoor coil conversion kit on flex coils
Class Fee: $60.00
Class Length: One day
Instructor: Troy Rybicki
Included: Course materials, lunch, and refreshments
Registration: 7:45 a.m., Class: 8 a.m. to NOON
April 24, 2025 GWB Tinley Park*, 7635 W 183rd Street, Tinley Park, IL
ALLIED R-454B COMMERCIAL PACKAGED RTUS
Topics
• Single-zone VAV fan operation
• New Intelli-Guide controller on all K-Series requires mobile app
• Programming Siemens high-performance economizer control
• VFD blower control settings, operation parameters, and diagnostic procedures for Mitsubishi and Delta drives
• How refrigerant sensors work and how many are needed on RTUs
• Verify A2L refrigerant charge using micro-channel coils
Class Fee: $60.00
Class Length: One day
Instructor: Troy Rybicki
Included: Course materials, lunch, and refreshments
Registration: 7:45 a.m., Class: 8 a.m. to NOON
June 10, 2025 GWB McHenry, 4100 W Albany Street, Mc Henry, IL
June 11, 2025 GWB Lombard, 1155 North DuPage Avenue, Lombard, IL
June 24, 2025 Kroc Community Center, 900 W Western Ave, South Bend, IN
June 25, 2025 GWB Fishers*, 9004 Technology Dr, Fishers, IN
June 26, 2025 Coyote Creek Golf Club, 4935 Hillegas Rd, Ft. Wayne, IN