Labconco Protector ClassMate Laboratory Hoods 69716 - Manual (Page 12)

8
Product Service 1-800-522-7658
Chapter 2: Prerequisites
Location Requirements
The Fume Hood should be located
away from traffic patterns, doors,
fans, ventilation registers, and any
other air-handling device that could
disrupt its airflow patterns. All
windows in the room should be closed.
Support Requirements
DO NOT locate the fume hood on a
cart, dolly, or mobile bench. ALL
Protector ClassMate installations
must be permanent and stationary.
The supporting structure usually
consists of a base cabinet and
chemically resistant work surface. See
Appendix D: Protector ClassMate
Accessories.
Exhaust Requirements
The exhaust duct connection has been designed for 8"
nominal pipe (8.625" O.D.) to allow for minimum static
pressure loss while operating at 100 fpm face velocities.
The 8" exhaust duct also allows for proper transport
velocities away from the hood in the 1000 fpm to 2500
fpm range. It is acceptable to combine the air from two
hoods with a transition coupling that would basically
have two 8" nominal exhaust inlets and one 12" (12.00"
O.D.) nominal exhaust outlet. See Appendix D
Protector ClassMate Accessories for transition
coupling. The proper exhaust volume and static
pressure loss are listed next for each hood model:
!
!