Owner's manual

Labconco Instruction Sheet 5230201, Rev. -, ECO E275 1 of 4
LABCONCO CORPORATION 8811 Prospect Ave, Kansas City, MO 64132
[phone], Fax [phone]
6" Thimble Exhaust Connector No. 5230200
Operation
The 6" Thimble Exhaust Connector attaches to the top of the glove box blower for exhausting air
to the outside. The thimble connection is necessary for balancing the glove box blower with a
roof-mounted blower. Consult Labconco for separate purchase of a roof-mounted blower (P/N
4863500), damper (P/N 3924000 or P/N 4724200), and 6" diameter x 8' long hose (P/N
3927600) to exhaust the glove box to the outside. Follow the installation procedure below to
properly connect the 6" Thimble Exhaust Connector.
Installation Procedure
1. Disconnect all power to the glove box and glove box blower.
2. Remove the perforated plate on top of the blower as identified in the attached pictorial and
replace it with the 6" Thimble Exhaust Connector.
3. Secure the 6" Thimble Exhaust Connector with silicone sealant and reattach the 8 screws.
4. Attach an accessory 6" diameter hose or duct to the connection in the ceiling and to the
thimble. If needed, a Labconco 6" diameter x 8' long hose (P/N 3927600) may be
ordered. Additionally, Labconco roof-mounted blower (P/N 4863500) and damper (P/N
3924000 or P/N 4724200) may be ordered if exhausting to the outside with a dedicated
blower system. The damper is required to properly adjust the airflow.
5. The 6" Thimble Exhaust Connector must be tested and confirmed to draw room air
through the thimble. A visual smoke test is a good method for confirmation. The exhaust
system blower and damper must be set at approximately 20% above the glove box
airflow. CAUTION: With sensitive weighing operations, it may be necessary to
lower the glove box blower speed below 50 CFM and set the exhaust system airflow
at 20% above the airflow volume.
6. Reconnect all power to the glove box.
7. Installation is now complete.