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Page 19

MAXIM Installation Instructions

2-2.3.1 VAVMax Dierential Pressure Input

The Dierential 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 dierential 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 Dierential Pressure Input:

• 3000 Pa maximum static operating pressure

• 0 to +250 Pa dierential operating pressure

• -10 to +300 Pa maximum rated dierential pressure

• Accuracy rate of ±5FS

• Only non-corrosive gases are to be used

Figure 2-4: MiniMAX, MicroMAX, VAVMax and IG01 Controller Dimensions

1 2 ... 14 15 16 17 18 19 20 21 22 23 24 ... 59 60

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Innotech Maxim Manual de usuario Pagina 19