FIELD CONTROLS FDVS 用户手册

The Field Direct Vent System (FDVS) is a non-powered positive pressure side wall vent termination system for use only 
with specifically listed oil fired appliances.  The system provides an outlet for exhaust gases and an intake for combustion 
air in a single concentric terminal.  The FDVS termination is designed to direct the hot exhaust gases away from the 
structure using the static pressure generated by a special oil burner.  All of the internal parts in contact with the flue gases 
are made from corrosion resistant 316L stainless steel.  The FDVS, with its built-in combustion air tee, allows connecting 
standard galvanized pipe from the FDVS termination to the air intake of a special oil burner or by use of a Field Controls 
Airboot, depending on the model of the oil burner. 

 

THESE INSTRUCTIONS MUST REMAIN WITH EQUIPMENT 

 

This system MUST be installed by a qualified agency in accordance with the manufacturer’s installation 
instructions. 
The definition of a qualified agency is: any individual, firm, corporation or company which either in person or through a 
representative is engaged in, and is responsible for, the installation and operation of oil appliances, who is experienced in 
such work, familiar with all the precautions required, and has complied with all the requirements of the authority having 
jurisdiction. 

WARNING: 

• 

Read the installation instructions carefully and completely before proceeding with the installation. 

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For continued safe operation, the appliance vent system combination is required to be inspected and maintained 
annually by a qualified agency. Failure to properly maintain the appliance vent system combination can lead to 
Death, Personal Injury and or Property Damage

 

1.  Safety inspection of a venting system should be performed before and after installing a venting system on an existing 

or new appliance. Procedures to follow are the latest version of those recommended by the National Fuel Gas Code, 
ANSI Z223.1, UL-726, NFPA31, CSA B139, CSA B140.0.03 appliance manufacturer’s recommendations, or refer to 
the General Installation Inspection section of this manual. 

2.  Plan the vent system layout before installation to avoid the possibility of accidental contact with concealed wiring or 

plumbing inside walls. 

Patent 

Pending 

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FDVS Direct Vent Termination  
*VRV-4 Vacuum Relief Valve 
Backing Plate 
Installation Instruction 
Sheet 
**Bagged Hardware 
**Cover Ring 
**Cover Sleeve 
**Appliance Adapter 
**Adapter Clamp