Greenheck Fan 474118 installation manual Duct Connections, Plenum Bottom Inlet Opening

Duct Connections

Plenum Bottom Inlet Opening

Length

Width

Service					Service
	Door				Door
					Service
					Door
		Cabinet		Length	Width
		Size		(inches)	(inches)
020			86		25
030			120		25
040			172		25
060			236		25

Plenum Side Inlet Duct Dimension

Height

Duct Connections

Installation of all ducts should be done in accordance with SMACNA and AMCA guidelines.

Connect primary exhaust air ducts to unit using flanged connections. Screw ducts directly to unit using stainless steel self-tapping sheet metal screws. Contractor is responsible for providing transitions to accommodate difference in sizing between unit and building ducts. Duct connections to collar-type openings can be made with S-cleats or overlapping joints. Apply caulking around the duct connection. Failure to ensure a tight fit and properly seal duct connections can cause air leakage and system performance problems from the contaminated airstream.

Bottom Inlet

Energy Recovery Cabinet

Contractor
Installed
Ductwork	Curb

Roof Deck

Energy Recovery Cabinet

Length

Cabinet	Length	Height
Size	(inches)	(inches)
020	86	30
030	120	30
040	172	30
060	236	30

Contr actor
Installed
Ductwork	Curb

	Roof Deck
	Plenum Side Inlet
	Gasket or Sealant
	(by others)
Contractor
Installed
Ductwork	Screws
	(by others)
	Gasket or Sealant
	(by others)

Vektor ERS-MD Energy Recovery Plenum Laboratory Exhaust 7