Labconco TXE Tall XPerEnclosure 3892022 - Manual (Page 8)

Chapter 2: Prerequisites
Product Service 1-800-522-7658 4
Exhaust and Blower Requirements
The TXE uses an integral motorized impeller to draw room air past the operator
and through the enclosure. This contaminated air is then pushed through the
HEPA filter. The HEPA-filtered exhaust air is then forced out the top of the
enclosure.
The HEPA-filtered exhaust air can be recirculated into the laboratory or exhausted
outside with the addition of the Canopy Exhaust Connection and remote blower
listed in Chapter 7. Electrical connections are covered in Chapter 2 for this
configuration.
Data for the exhaust volume, noise pressure and enclosure static pressure loss are
listed for the TXE at face velocities of 80 and 100 fpm.
Enclosur
e Width
Model
Description
Face Velocity
(fpm)
Exhaust
Volume
(CFM)
TXE Pressure
Loss with
HEPA filter (in
w.g.)
TXE Noise
Pressure db
(A)
TXE Max.
Equivalent
Resistance (Ft)
TXE Max.
External Static
Pressure
2 FT 2' TXE 80
100
115
145 .48" - .57"
.62" - .72" 50-56
53-58 200
80
.18"
.13"
Proper blower selection can be determined from these exhaust requirements and the
total system static pressure loss. For outside exhaust, the enclosure must be
connected to either a dedicated blower or a house exhaust system. Labconco offers
accessory remote blowers listed in Chapter 7. Contact Labconco for blower sizing
assistance.
If the enclosure is connected directly to a house exhaust system, an
adjustable damper (or valve) must be installed to control the airflow
properly. This is equally important when a house exhaust system is
controlling multiple filtered enclosures. See Chapter 7 for accessory
adjustable damper ordering information.
Electrical Requirements
Standard duplex electrical receptacles should be nearby for connecting the TXE or
other equipment. The enclosure includes pass-thrus to allow electrical cords through
the back of the enclosure without leaving a large hole for contaminants to escape.
TXE Connected to Building Exhaust
There is no provision for controlling a remote blower for exhausting air from the TXE.
One way to do this, however, is to have a certified electrician connect a wall mounted
switch receptacle nearby so that the switch controls both the remote blower and the
receptacle. The power cord for the TXE is then plugged into this receptacle.
Space Requirements
The dimensions for the different models are shown in Appendix B: Dimensions.
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