Labconco XPert Filtered Balance Stations 3962622 User Manual

Page 11

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Chapter 2: Prerequisites

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7

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 filtered
enclosure, or other equipment, such as a balance for weighing operations. The
enclosures include iris pass-thru to allow electrical cords through the back of the
enclosure without leaving a large hole for contaminants to escape.

XPert System

There is no provision for controlling a remote blower for exhausting air from the
XPert Systems. 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 XPert System is then plugged into
this receptacle.

XPert Station

The remote blower for the XPert Filtered Balance Station may be connected to the
blower switch on the enclosure. The blower switch is connected to a relay whose
wires are terminated in the junction box behind the front panel. We recommend a
maximum amperage of 6 for this circuit to the remote blower. Connect the blower
wires inside the junction box to the remote blower per local electrical codes.

Space Requirements

The dimensions for the different models are shown in Appendix B: Dimensions.

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