Universal Laser Systems PLS4.75, User Manual

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Exhaust System (User Supplied)
1. We recommend you consult with a licensed contractor to meet local safety and building code
requirements.
2. The exhaust system must be capable of supplying a minimum of
• PLS4.75 - 250 CFM (cubic feet per minute) of airflow while under a load of 6 inches of static
pressure (850m
3 /hr at 1.5kPa).
• PLS6.75 and PLS6.150D - 500 CFM (cubic feet per minute) of airflow while under a load of 6
inches of static pressure (850m
3 /hr at 1.5kPa).
2. Do not install forward incline, backward incline, in-line or ventilator fans because these types of air
handlers are inadequate and inappropriate for this type of installation. A high-pressure blower must be
used to meet minimum airflow requirements.
3. For personal safety and noise control, we recommend that the exhaust blower be mounted outside the
building.
4. Rigid tubing should be used for the majority of the connection between the blower and the laser system.
The tubing should be smooth-walled and have as few 90-degree bends as possible.
5. Install an exhaust gate to adjust airflow and to close off the exhaust when the laser is not in use. Place
this gate near the laser system within 5 to 10 feet (1.50 to 3.00 meters).
6. Use a short piece of industrial grade, wire-reinforced rubber tubing to connect each laser system exhaust
port to an exhaust gate and secure with a hose clamp. This will provide isolate exhaust blower vibrations
from your laser system.
7. Wire the exhaust blower electrically to a wall switch in the same room for easy ON/OFF control.
Note: The following diagram shows a typical exhaust system layout. Use this as a guideline for proper
exhaust system installation. Although this diagram serves as an example, we recommend you consult with a
licensed contractor to meet local safety, environmental and building code requirements and to also calculate
the correct size blower required for your particular installation. Length of exhaust pipe, exhaust pipe diameter,
number of 90-degree angles and other restrictions must be calculated when determining the correct exhaust
blower unit. Installing an undersized or oversized blower is not only unsafe, but can also lead to excessive
wear and tear to the laser system and premature failure.
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