Exhaust and blower requirements, Chapter 2: prerequisites – Labconco XPert Filtered Balance Stations 3962622 User Manual
Page 10
Chapter 2: Prerequisites
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6
Do not position the unit so that it is difficult to operate the main
disconnect device.
Ne placez pas l'appareil de sorte qu'il est difficile de faire
fonctionner le dispositif principal de déconnexion.
Exhaust and Blower Requirements
The XPert Filtered Balance System 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. An optional carbon filter may be installed on the
downstream side of the HEPA filter to protect against nuisance odors.
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.
The XPert Filtered Balance Station does not include the motorized impeller and
must be exhausted to the outside by a remote blower. The XPert Filtered Balance
Station remote blower may be switched from the blower switch on the enclosure.
See Electrical Requirements in Chapter 2, and Electrical Supply Connections in
Chapter 3. Only one 6" exhaust connection is required for the 2', 3', or 4' XPert
Filtered Balance Stations to exhaust to the outside. Only one 10" exhaust
connection is required for the 5' and 6' XPert Filtered Balance Stations.
Data for the exhaust volume, noise pressure and enclosure static pressure loss are
listed for each filtered enclosure model at face velocities of 60, 80, and 100 fpm.
Balances typically work best between 60-90 fpm with the balance shield closed
tightly.
Enclosure
Width and
Sash
Opening
Model Description
Face Velocity
(fpm)
Exhaust
Volume
(CFM)
XPert Station
Initial Static
Pressure Loss
with HEPA
filter (in w.g.)
XPert
System
Noise
Pressure db
(A)
Xpert System
Max.
Equivalent
Resistance (Ft)
Xpert System
Max. External
Static Pressure
2'
9.4" Sash
2’ Xpert Filtered Balance System
2’ Xpert Filtered Balance Station
(6" Duct)
60
80
100
85
115
145
.35"- .41"
.48" - .57"
.62" - .72"
48-53
50-56
53-58
400
200
80
.20"
.18"
.13"
3'
9.4" Sash
3’ Xpert Filtered Balance System
3’ Xpert Filtered Balance Station
(6" Duct)
60
80
100
130
175
220
.37" - .43"
.53" - .62"
.68" - .79"
48-53
53-57
58-61
130
50
25
.15"
.11"
.08"
4'
9.4" Sash
4' XPert Filtered Balance System
4' XPert Filtered Balance Station
(6" Duct)
60
80
100
175
235
295
.40" - .46"
.57" - .66"
.76" - .87".
49-54
58-61
62-66
100
50
25
.20"
.18"
.13"
4'
12" Sash
4' XPert Filtered Balance System
4' XPert Filtered Balance Station
(6" Duct, Tall or Deep Models)
60
80
100
230
305
380
.56" - .65"
.77" - .87"
.92" - 1.04".
58-61
62-66
67-70
50
25
5
.18"
.13"
.05"
5'
12" Sash
5' XPert Filtered Balance System
5' XPert Filtered Balance Station
(10" Duct)
60
80
100
290
385
480
.38" - .46"
.55" - .67"
.72" - .85"
52-56
58-63
63-67
450
230
120
.22"
.20"
.15"
6'
12" Sash
6' XPert Filtered Balance System
6' XPert Filtered Balance Station
(10" Duct)
60
80
100
350
465
580
.46" - .56"
.67" - .81"
.87" – 1.03"
55-57
61-63
67-69
300
150
70
.20"
.18"
.13"
!