Ventilation Requirements - DCS RDT-305 Installation Manual

VENTILATION REQUIREMENTS

A suitable exhaust hood must be installed above the range. The following chart indicates the minimum blower
capacity recommended for hood ventilation.
Ventilation Unit
HOOD
BLOWER
* When installing a unit featuring a grill, GL models, requires a 1200 CFM ventilation unit
CAUTION:
Ventilation hoods and blowers are designed for use with single wall ducting. However, some local building codes or
inspectors may require double wall ducting and/or damper. Consult local building codes and/or local agencies,
before starting, to ensure that hood and duct installation will meet local requirements.
Hood blower speeds should be variable to reduce noise and loss of heated or air conditioned household air
when maximum ventilation is not required. Normally, the maximum blower speed is only required when using
the grill.
For best smoke elimination, the lower edge of the hood should be installed a minimum of 30" to a maximum of
36" above the range cooking surface, (page 14 & 15). If the hood contains any combustible materials (i.e. a
wood covering) it must be a minimum of 36" above the cooking surface.
Due to a high volume of ventilation air, a source of make-up air (outside replacement air) is recommended. This
is particularly important for tightly sealed and insulated homes. A reputable heating and ventilating contractor
should be consulted.
12
Standard Counter
Installation
Recommendatons
24" Deep x Unit Width
*48" Range
1200 CFM
*36" Range
600-1200 CFM
30" Range
600 CFM
Island Installation
Recommendatons
30" Deep x 36" at Bottom
1200 CFM
600-1200 CFM
600 CFM