Exhaust Requirements; Concurrent Balance Volumes - Labconco Logic+ 30348 Series User Manual

Exhaust Requirements

NOTE: THE EXHAUST BLOWER CANNOT RUN AT ITS NOMINAL FLOW RATE
WITH THE SASH COMPLETELY CLOSED. IF YOU CHOOSE TO CLOSE THE
SASH COMPLETELY TO USE THE UV LIGHT FOR SURFACE DISINFECTION,
THEN THE EXHAUST BLOWER MUST BE SHUT OFF, OR ITS FLOW RATE
REDUCED 90% OR MORE FOR PROPER OPERATION. THE LOGIC+ HAS AN
OPTIONAL EN/CONTACT CIRCUIT BOARD THAT HAS DRY CONTACTS THAT
CAN BE CONFIGURED TO SIGNAL THE EXHAUST BLOWER TO TURN ON
WHEN THE LOGIC+'s BLOWER IS ON. FOR FURTHER INFORMATION,
CONTACT LABCONCO'S PRODUCT SERVICE DEPARTMENT. AS AN
ALTERNATIVE, A REMOTE ELECTRICAL SWITCH FOR THE EXHAUST
BLOWER CAN BE INSTALLED NEAR THE LOGIC+.
Before deciding on a location, examine it carefully to ensure that it accommodates
the cabinet's exhaust duct. The area directly above the cabinet's exhaust port
should be clear of structural elements, water and utility lines, or other fixed
obstructions. There should be enough clearance to allow for the passage of a 10"
stainless steel duct. Avoid cabinet locations that require either an elbow directly on
top of the cabinet's exhaust connection or an excessive number of elbows to clear
other items. For a further discussion of the cabinet's exhaust system
requirements, please go to Section 3: Getting Started.
Concurrent Balance Volumes (CBV)
NOTE: THE CBV IS ESTABLISHED BY NSF DURING LISTING TESTING. THE
STATIC PRESSURE LISTED IS MEASURED AT THE BSC'S CONNECTION TO
THE EXHAUST SYSTEM. THE VALUES PUBLISHED INCLUDES 0.7 INCHES
OF FILTER LOADING, FROM THE BSC'S ORIGINAL PRESSURE. IN ORDER
TO OBTAIN MAXIMUM EXHAUST HEPA FILTER LOADING, THE SYSTEM
SHOULD BE CAPABLE OF GENERATING A STATIC PRESSURE 1.3 INCHES
HIGHER THAN THOSE NOTED.
Concurrent Balance Values
Traverse Exhaust Volume
Differential Pressure (in. H
2: Prerequisites
(CFM)
0)
2
734 1191
1.7 2.1
10