Innotech Maxim - Manual (Page 19)

Page 19
MAXIM Installation Instructions
© Mass Electronics Pty Ltd 2011 Chapter 2 – Mechanical Information
2-2.3.1 VAVMax Differential Pressure Input
The Differential Pressure Input is only available on the VAVMax (VM01) controllers. It is used to
measure and respond to changes in air velocity pressure, which is determined by how the VAVMax
controller has been configured. The pressure sensor is factory calibrated for optimum performance
and is an extremely sensitive electromechanical device. Therefore the following guidelines should be
observed to prevent irreparable damage to the pressure sensor:
• Do NOT apply pressure from sources other than a pitot tube
• Do NOT apply excessive static or differential pressure when connecting or disconnecting air supply
hoses to the VAVMax controller
• Do NOT drop the VAVMax controller
Listed below are the general operational parameters for the Differential Pressure Input:
• 3000 Pa maximum static operating pressure
• 0 to +250 Pa differential operating pressure
• -10 to +300 Pa maximum rated differential pressure
• Accuracy rate of ±5FS
• Only non-corrosive gases are to be used
Figure 2-4: MiniMAX, MicroMAX, VAVMax and IG01 Controller Dimensions