QVSD

Separated Combustion

The model QVSD separated combustion indoor duct furnace is designed to be installed in mildly hostile environments where dusty, dirty, and mildly corrosive conditions exist, or high humidity or slightly negative pressures prevail. The burners, pilot and flue system are enclosed within the unit. The entire combustion process is literally unaffected by the atmosphere in the space where the unit is located.

All QVSD Literature

Standard Features

100 - 400 MBH
80% Thermal Efficiency
Aluminized Steel Heat Exchanger - 20-Gauge
Optional 409 and 321 Stainless Steel Heat Exchangers
Single Stage Gas Valve
Optional 2-Stage and Modulating Gas Valves
Optional Air Flow Prove Switch
Spark Ignition
Natural or LP Gas Available
Easy Burner Access with Individual Removable Burners
Factory Test Fired
1-Year Warranty

Warranty

Duct Furnaces and Cabinet Blowers are warranted by Sterling to be free from defects in materials and workmanship for a period of one (1) year from date of shipment from Sterling's Plant. Sterling will repair or replace, at its option, any components which, upon inspection, it finds to be defective, provided that the unit has been operated within its listed capacity, has been installed in accordance with the furnished instructions, has not been misused or subject to negligence and has received reasonable and necessary maintenance.

For complete warranty information consult documentation or contact Sterling HVAC.

Literature

All the Literature associated with the QVSD

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Literature Library

Performance

Performance, Materials and Features for each QVSD capacity model.

Name	100	150	200	250	300	350	400
MBH Input	100 MBH	150 MBH	200 MBH	250 MBH	300 MBH	350 MBH	400 MBH
MBH Output	80 MBH	120 MBH	160 MBH	200 MBH	240 MBH	280 MBH	320 MBH
Thermal Efficiency	80%	80%	80%	80%	80%	80%	80%
Air Temp Rise	20°F - 90°F	20°F - 90°F	20°F - 90°F	20°F - 90°F	20°F - 90°F	20°F - 90°F	20°F - 90°F
Min CFM	822 CFM	1,233 CFM	1,645 CFM	2,056 CFM	2,467 CFM	2,878 CFM	3,289 CFM
Max CFM	3,700 MBH	5,550 MBH	7,401 MBH	9,251 MBH	11,101 MBH	12,951 MBH	14,801 MBH
Pressure Drop	2.03	1.81	1.9	1.96	.2	2.02	2.03
Venting
Flue Size	4"	4"	5"	5"	3"	6"	6"