Heating, Cooling & Air Quality Services in Fairlawn

Replaced the outdoor expansion valve and coil on the commercial ductless mini-split system. Following installation, verified system operation through the Mitsubishi Electric thermostat in cool mode, with the indoor unit and wireless interface module intact and free of damage.

Performed scheduled preventive maintenance on a 10-year-old gas furnace, including inspection of the heating system and verification of safe, proper operation. Conducted a combustion analysis using a flue gas analyzer, recording O2 at 9.14%, CO2 at 6.61%, and CO at approximately 52 ppm to confirm combustion performance and safe emissions levels.

Responded to a furnace noise complaint on startup and performed a combustion analysis with a Testo 310 analyzer, recording O₂ at 7.3% and CO at 7 ppm, both within acceptable operating range. Inspected the unit during the heating cycle to evaluate the source of the startup noise and verify safe, proper furnace operation.

Performed seasonal heating maintenance and verified system operation, using a digital thermometer to measure duct surface temperatures and confirm heat delivery. Measured approximately 114°F at the supply duct and 75°F at the return duct, indicating a temperature rise consistent with proper furnace performance. Inspected foil-taped duct seams and found no frost, rust, or visible damage, though some tape at a seam corner was slightly lifted and wrinkled.

Performed seasonal heating maintenance on a gas-fired furnace of unknown age, including visual inspection of the cabinet, burner and control compartment, blower motor, wiring, gas valve, gas piping, and flue/vent connections. No signs of rust, frost, or physical damage were observed, and the unit was left operational with a light accumulation of dust noted on the upper cabinet.

Performed seasonal heating maintenance on a Lennox natural gas furnace of unknown age, including inspection of the burner compartment, control board, gas valve assembly, wiring connections, and flue venting. Conducted a combustion analysis with a Testo 327-1 analyzer, recording 8.7% O2 and 17 ppm CO, which is within acceptable operating limits. Unit is operating properly with no visible rust, damage, or flue irregularities noted.

Performed seasonal heating maintenance on a gas furnace of unknown age, inspecting the burner assembly, gas valve, gas supply piping, inducer motor, pressure switch, and control wiring. Noted dust and grime buildup throughout the cabinet and light surface rust on the gas supply pipe; all wiring connections and ground were verified secure. Furnace was left in safe operating condition.

Performed seasonal heating maintenance on a natural gas furnace of unknown age, including a combustion analysis of the flue gas. Readings showed 5.5% O2, 31.7% excess air, 14 ppm CO, and 19 ppm air-free CO, all within acceptable limits for safe operation. Installed a new pleated Koch filter, and the system operated normally at completion.

Performed seasonal heating maintenance and conducted a combustion analysis on the natural gas furnace using a Bacharach electronic analyzer. Readings recorded were O2 9.1%, CO 29 ppm, CO2 6.7%, and combustion efficiency of 82.6%, confirming the unit is operating within acceptable safe parameters.

# HVAC Service Report Responded to service call for non-operational Trane rooftop unit G on commercial building. Upon arrival, conducted visual inspection of the packaged rooftop unit and accessed internal components to diagnose the failure. Investigation revealed issues with the gas valve assembly requiring attention. Inspected gas valve connections, wiring harness including orange, blue, red, and purple control wires, and associated gas piping. Verified proper wire terminations at gas valve and checked for secure mounting of all components. Examined condition of filter drier and associated refrigerant lines. Restored unit to operational status and verified proper system function before departure.

Completed maintenance on two heating systems, both 5-10 years old, as part of first-call MVP heat service. Performed combustion analysis on both units using Bacharach analyzer, with first system showing 85.5% efficiency, 9.9% O2, 3 ppm CO, and 6.2% CO2, while second system demonstrated improved performance at 96.3% efficiency, 8.0% O2, 11 ppm CO, and 7.3% CO2. All readings within acceptable parameters for natural gas equipment.

Responded to service call for Mitsubishi mini-split system displaying AE error code. Inspected both outdoor condenser unit located on flat roof and indoor air handler mounted in interior space. Diagnosed error code, performed necessary troubleshooting and system diagnostics, and resolved the fault condition. Verified proper operation of both indoor and outdoor units upon completion, with system returning to normal functionality.

Completed full HVAC system retrofit including furnace and air conditioning equipment. Installed new furnace unit with proper PVC venting configuration, established all electrical connections with dedicated circuit protection, and charged the AC system with R-454B refrigerant to manufacturer specifications. System testing confirmed proper pressures at 184 psig low side and 183 psig high side, with superheat and subcooling readings within acceptable parameters for optimal performance.

Completed recurring commercial heating maintenance visit on residential HVAC system. Performed comprehensive inspection of furnace unit, verified proper operation of all components, and examined air filter condition. Filter showed moderate dirt accumulation and discoloration from use but remained serviceable. Inspected ductwork connections, water heater integration, and associated mechanical systems to ensure all equipment operating within normal parameters.

Performed scheduled commercial heating maintenance on rooftop packaged HVAC unit. Conducted comprehensive inspection of refrigerant lines, electrical connections, and evaporator coil assembly, documenting equipment condition with interior and exterior photography. Unit operational with minor dust accumulation noted in air handler compartment.

Completed fall preventative maintenance on commercial Trane rooftop unit per contract agreement. Performed comprehensive system inspection, checked refrigerant temperatures reading 20.2°F, verified filter condition, and documented equipment nameplate information. All components operating within normal parameters with no deficiencies noted at time of service.

Completed new construction HVAC installation including furnace and ductwork system in crawl space. Installed main trunk line with galvanized metal ductwork properly supported from floor joists, along with flexible branch connections for distribution throughout the structure. Applied vapor barrier ground cover for moisture control and installed reflective insulation on foundation walls per code requirements. Exterior work included installation of PVC condensate drain system with proper trap configuration mounted to building exterior, ensuring adequate drainage away from foundation. All ductwork sealed and secured, system ready for startup and commissioning.

Responded to a water leak located under the kitchen sink. Upon inspection, identified the garbage disposal unit as the source of the leak. The existing disposal showed signs of failure at connection points and required replacement. Documented the faulty unit and surrounding plumbing configuration, including the dishwasher drain connection via corrugated hose, PVC discharge piping, and water supply lines. Provided photographic documentation of the defective disposal and cabinet interior for service records.

Completed rough-in installation for new construction HVAC system, including furnace and air conditioning unit placement and ductwork distribution throughout the structure. All equipment was positioned according to specifications and duct runs were installed to ensure proper airflow and system efficiency.

Responded to commercial callback for inoperative condenser fan. Replaced failed condenser fan motor on rooftop HVAC unit and restored system to normal operation. Unit tested and confirmed proper airflow and cooling function upon completion.