99% * Thermal Efficiency Gas-Fired High Efficiency Unit Heater
The World's Best High Efficiency Unit Heater “The less fossil fuels we burn the better it is for our future; all of my designs concentrate on this philosophy. We lead in innovation using the environment as our number one concern. We don’t follow...we lead.” –Ken Cohen, Designer Sterling’s Nexus brings gas-fired unit heaters to unprecedented levels of efficiency.
Application Flexibility In today’s marketplace where time is money, Nexus is designed to be user and service friendly. Whether natural or LP gas, conversions are simple and quick through a single orifice conversion with kits included as a standard feature. Multiple operating voltages, flexible venting options and some of the longest throws in the segment make Nexus the only choice for any application.
Gas Controls The only fully modulating, high efficiency unit heater produced, Nexus utilizes a burner control and configuration that allows a 3:1 turndown for precision discharge temperature control, with this technology units run more efficiently for a longer period of time with reduced cycling. Competitors use in-shot burners and only offer 1:1 on/off configuration that often times result in over/under heating the occupied space and increased wear and tear on the equipment with constant cycling.
Outdoor Air Reset Modulation Units automatically vary discharge temperatures based on the outside air temperature providing seamless modulation for optimum efficiencies. By running at lower discharge temperatures subject to the outdoor temperatures, units run longer at higher efficiency resulting in less cycling, lower fuel costs, and increased occupancy comfort. As the outdoor temperature drops, discharge temperatures increase and vice versa.
HU 050 Dimensional Data COMBUSTION AIR "N" "L" "D" "F1" (HANGING) "W" FLUE "K" "P" GAS CONNECTION "J" "T" "U" ELECTRICAL CONNECTION "E" (HANGING) "R" "Q" REAR VIEW "S" "G" (DISCHARGE OPENING) ELECTRICAL CONTROL BOX "A" "H" (DISCHARGE OPENING) "C" "F2" (HANGING) 3" (77mm) "M" 4 SUSPENSION POINTS (THREADED RODS) TOP VIEW BOTTOM VIEW "B" FRONT VIEW CAT-10081D HU 100-400 Dimensional Data CAT-10081D TOP VIEW 6
Dimensions Unit Capacity (MBH) DIMENSIONAL DATA - inches (mm) "A" Height to Top of Combustion Air Inlet "B" Jacket Width of Unit "C" Unit Height "D" Depth to Rear of Housing "E" Hanging Distance Width "F1" Hanging Distance Depth "F2" Hanging Distance Depth "G" Discharge Opening Width "H" Discharge Opening Height "J" Side Panel to Centerline Combustion Air "K" Front Panel to Centerline Combustion Air "L" Overall Unit Depth "M" Side Depth "N" Combustion Air Inlet Connection Dia.
Performance and Dimensional Data Model Input BTU/HR Output BTU/HR Thermal Efficiency Air Temp Rise Condensate Production (Gal/Hr) Turn Down Ratio Modulating Control Fuel Type Venting Category Entering Airflow (CFM @ 70°F) Outlet Velocity (FPM) Heat Throw @ 20' Mounting Height Min. Gas Pressure Natural Min. Gas Pressure LP Max.
