NV HVAC Contractor case studies
NV HVAC Contractor · Put your knowledge to work in context.
The Nevada State Contractors Board (NSCB) determines the qualifications of contractor license applicants, and that process explicitly includes written examinations, background investigations, and financial responsibility assessments. The Board also sets licensing conditions such as field and scope limitations, bond requirements, and contractual limits, and it promulgates rules to implement and enforce NRS 624, the enabling statute. The NV HVAC Contractor case studies are 5 cases and about 3,099 words.
1License Limit, Split Contract, and an Expired Subcontractor License
Ridgeline Mechanical holds a Nevada Class C-21 air conditioning and refrigeration license with a 250,000 monetary limit. The owner asks you to sign a 310,000 design-build contract for a 12,000 sq ft tenant improvement.
640 words, about 3 min2Five-Ton Rooftop Unit at Reno Altitude Against a 72,000 Btu/h Load
A 2,400 sq ft retail suite in Reno, elevation about 4,500 ft, has a calculated cooling load of 72,000 Btu/h total: 61,200 Btu/h sensible and 10,800 Btu/h latent, for an SHR of 0.85. The owner wants to reuse a 5-ton rooftop unit rated 60,000 Btu/h at AHRI conditions, 1,600 cfm nominal, and 0.50 in.
619 words, about 3 min3High External Static and Uneven Airflow in a Las Vegas Duct System
A 3-ton split system in a 1,800 sq ft Las Vegas house is started up with these readings: supply static +0.52 in. w.c., return static -0.38 in.
641 words, about 3 min4R-404A Leak Rate, Repair Deadline, and a Requested Drop-In Retrofit
A 40,000 sq ft supermarket in Las Vegas has a medium-temperature R-404A rack with a 180 lb charge. The maintenance log shows 12 lb added in January, 16 lb in April, 18 lb in September, and 14 lb in December.
558 words, about 3 min5Heat Pump With Auxiliary Heat, a Shared White Wire, and a 60 A Circuit
A new 3-ton heat pump with 10 kW electric auxiliary heat is installed in a 2,000 sq ft Carson City office. Nameplate data: compressor RLA 14.7 A, outdoor fan 1.2 A, indoor blower 3.4 A, auxiliary heat 41.7 A at 240 V, MCA 52 A, and maximum overcurrent protection 60 A.
641 words, about 3 min