Innotech Maxim - Manual (Page 59)

Page 59
MAXIM Installation Instructions
© Mass Electronics Pty Ltd 2011 Appendix A – Using the CT01 Commissioning Tool
A-5.1 Calibration of sensors
The calibration of sensors is normally completed by the Innotech commissioning technicians.
However the CT01 can be used to calibrate the sensor if the need arises. Follow the steps below to
calibrate sensors:
1. Log onto a VAVMax controller as per the instructions in the previous section.
2. Select Commission and press the
Enter button.
3. Select Calibrate and press the enter button.
4. Each port corresponds to an input on the VAVMax controller. Port 3 is a dedicated temperature
input.
5. To calibrate temperature input, take a note of the sensor reading with a reliable thermometer.
6. Scroll to Port 3 and press the
Enter button.
7. Using the navigation buttons enter the correct measured temperature and press the Enter
button.
8. This will calibrate the sensor and provide an offset reading.
9. This same process can be used if Ports 1 or 2 are used for temperature inputs.
10. Press the
Exit button repeatedly to return to the main menu..
11. The commissioning process is now complete.
A-5.2 Configuring the K-Factor
The K factor value is required to be calibrated to allow the VAVMax controller to correctly read the
pressure and calculate the airflow. The VAVMax does not need to know the duct size because it
is contained within the K factor. The K factor can be set manually, or the VAVMax can calculate it
automatically by following the steps below:
1. Log onto a VAVMax controller as per the instructions in the previous section.
2. Select Commission and press the
Enter button.
3. Select Calibrate and press the enter button.
4. Scroll down to Port 4. The parameters Measured and K factor should be visible on the LCD. The
Measured value is the airflow the VAVMax is currently reading.
5. Press the Enter button to calibrate the Measured value. Using the navigation buttons enter
your total measured air volume in L/S for that particular VAVMax controller, and press the Enter
button.
6. The VAVMax will now be calibrated and the K factor will be calculated.
7. Press the
Exit button repeatedly to return to the main menu.
The K-Factor may need to be rechecked and calibrated when the airflow is set to VMax.
NOTE
It is recommended to access and view the watch pages again to verify the controller is operating correctly. Verify
that the temperatures are correct, and the minimum and maximum air flows have been calibrated.
NOTE