Operating Instructions

Laboratory Room Controller Owner's Manual
1-6 Siemens Building Technologies, Inc.
Figure 1-3. One Supply, Two or More Hoods, One General Exhaust.
Adding other exhaust devices - Other types of exhaust devices may be handled in a variety
of ways (refer to Figure 1-4), including the following:
• Regulate the devices with a controller, such as the FHC, that delivers flow data as a
1 - 10 volt signal.
• Add a separate constant volume flow controller, not connected to the LRC, and tell
the LRC how much air it draws by setting the point OTHER.EXH (Point 89).