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RJH Air Conditioning & Refrigeration Service
bronzeBeltsville, MD
4.7(13 reviews)
LicensedInsured
About RJH Air Conditioning & Refrigeration Service
RJH Air Conditioning & Refrigeration Service provides professional appliance repair services in Beltsville, MD. Serving residential and commercial customers with expert technicians and quality parts.
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Frequently Asked Questions
How often is exhaust hood cleaning required by NFPA 96?
NFPA 96 (Standard for Ventilation Control and Fire Protection of Commercial Cooking Operations) requires cleaning frequency based on cooking volume: monthly for solid fuel cooking (wood, charcoal); quarterly for high-volume cooking (24-hour operations, charbroiling); semi-annually for moderate-volume cooking; and annually for low-volume cooking (pizzerias, churches, seasonal businesses). Your local fire marshal may have additional requirements. Failure to comply can void your fire suppression system coverage.
What temperature should commercial refrigerators maintain?
Commercial refrigerators must maintain 40°F (4°C) or below for food safety compliance. Walk-in freezers should be at 0°F (-18°C) or below. Many food safety programs require refrigerators to run at 35-38°F for proper margin. If your unit struggles to maintain proper temperature, especially during busy service periods or in hot kitchen environments, call a technician — compressor capacity or refrigerant levels may be the issue.
Are preventive maintenance contracts worth the cost?
Yes — most food service operators find PM contracts reduce total repair costs by 30-50% compared to reactive-only maintenance. Benefits include: reduced emergency repair calls (the most expensive type), extended equipment lifespan, maintained food safety compliance, priority scheduling for PM customers, and detailed maintenance records for health inspections. The ROI is especially strong for high-volume operations where any downtime is costly.