Note: a printable version is available at the bottom of the page.

Introduction:

  • All AIRSYS lead/lag controllers can gain additional functionalities and improvement retroactively by upgrading its software. 
  • This software upgrade requires a Smart Key loaded with newest software. The Smart Key is available to service contractors on a loan basis. For more detail, please contact HVACsupport@tempesttelecom.com 
  • Software upgrade resets all parameter to factory default.



Video Instruction for Steps 1-3:
(Written instructions below)



Step 1: Install Temp Sensors

Note: Skip to Step 2 if Supply Air Temp. Sensors already installed.

  • Install supply air temperature sensors on B1 and GND on both controller boards. See Figure 1 for installation location and Figure 3 for wiring.

          Figure 1



Step 2: Upgrade Unit #2

Note: Unless stated otherwise, all reference in this step refers to unit #2

  1. Disconnect J1 and J6. See Figure 3 for connector locations.
  2. Insert Smartkey into J5.
  3. Move J7 from unit#1 to unit#2. See Figure 2.
  4. Reconnect J1.
  5. Wait till the arrow on Smartkey is lit and points up toward the controller (see Figure 4).
  6. Press “Start” on Smartkey. The arrow will flash with increasing frequency while the software is loading. A “chirping” sound indicates the software has finished loading.
  7. Disconnect J1 and J5.
  8. Reconnect J1.
  9. The screen will display EO. After ~15 seconds, the display changes to 0.0. 
  10. Use the UP button to find SET
  11. Press the DOWN and SEL buttons simultaneously. If done correctly you will see a flashing 0 on the display, otherwise press UP and DOWN together and repeat step 2-10
  12. From flashing 0 press SEL, Stp should appear.
  13. Use the UP button to get to DEF and press SEL button. Display should display OFF.
  14. Press the UP button and the correct indoor temperature should be displayed. If the display still reads 0.0 after 30 seconds, return to step 2-10

            Figure 2

Figure 1

                                   Figure 3


 

Step 3: Upgrade Unit #1

Note: Unless stated otherwise, all reference in this step refers to unit #1

  1. Disconnect J1.
  2. Insert Smartkey into J5.
  3. Move J7 from unit #2 to unit #1 (See Figure 2).
  4. Reconnect J1.
  5. Wait till the arrow on Smartkey is lit and points up toward the controller. (See Figure 4).
  6. Press “Start” on Smartkey. The arrow will flash with increasing frequency while the software is loading. A “chirping” sound indicates the software has finished loading.
  7. Disconnect J1 and J5.
  8. Reconnect J1.
  9. The screen will display EO. After ~15 seconds, the display changes to 0.0
  10. From 0.0 use the UP button to find SET
  11. Press the DOWN and SEL buttons simultaneously. If done correctly you will see a flashing 0 on the display, otherwise press UP and DOWN together repeat step 3-10
  12. Press SEL, Stp should appear.
  13. Use UP button to get to DEF and press SEL button. Display should Display should display OFF.
  14. Press the UP button and the correct indoor temperature should be displayed. If the display still reads 0.0 after 30 seconds, return to step 3-10
  15. Reconnect J6 on unit #2.

 

            Figure 4

Step 4: For DC Controllers (ASLLC.2.48) ONLY

Skip to Step 5 unless the controller is 48 VDC (model ASLLC.2.48)

  1. From the indoor temp display press the UP button to find SET
  2. Press the UP and SEL buttons simultaneously. If done correctly you will see TES on screen. Otherwise press UP and DOWN together to Return to step 4-1. 
  3. Press UP until the terminal display SF1 and press SEL.
  4. Press UP to change 1 to 0 and press SEL. 

Step 5: Step Test - Verify Proper Operations

  1. Turn controller breaker (QF) off. Wait 5 Seconds and turn it back on.
  2. The screen will display EO. After ~15 seconds, the display changes to Indoor Temperature.
  3. Hold UP and SEL together for 3 seconds, the display should change to COd
  4. From COd, press SEL will display the current step. Use UP or DOWN to change the step and press SEL again to confirm. Once confirmed, the screen will revert to COd and selected step will start.



Video Instruction for Step Test:




Step 6: Turn System ON (Automatic Mode)

  1. Press UP and DOWN together to get back to the Indoor Temperature.
  2. Press DOWN to find OFF
  3. Hold SEL for 3 seconds. Both up and down buttons should be lit and active alarms will be displayed if there is any. Refer to the WPU Troubleshooting Guide for alarm troubleshooting.
  4. Press UP and DOWN together to get back to the Indoor Temperature.


Video Instruction for Turning the System On: