Supporting Documents

Single Unit Configuration
Configuring your AIRSYS HVAC system for Single Unit Operation[1]   I. Electrical Installation: Field wiring Ensure module 1 is wired to HVAC 1 (Cat5 o...
Tue, 6 Jun, 2017 at 4:53 PM
AIRSYS Lead-Lag Controller (ASLLC) Operation Logic Diagrams
All logic diagrams based on Indoor Set Point = 77°F. 1. Compressor and Heater Operation   ...
Mon, 22 Feb, 2016 at 11:36 AM
Disabling Free Cooling on AIRSYS WPUs
Beginning in software revision 13B57, the ASLLC has a default setting to disable free cooling when a dirty air filter alarm (A15/16) is triggered.  For soft...
Tue, 22 Sep, 2015 at 1:48 PM
Turning your HVAC System On/Off
Turning your ASLLC On: Press Up and Down together to reach the default display (Indoor Room Temperature will be displayed) Press Down until t...
Thu, 3 Mar, 2016 at 3:40 PM
Restoring System Defaults
It may be necessary at times to reset the system default settings.  This is generally only recommended during installation of the HVAC System after settings...
Wed, 23 Sep, 2015 at 4:13 PM
Programmable Graphical Display (PGD) Installation and Operation Manual (ASLLC Series Controllers Only)
rev. 1.1 last updated: 2/2018 Open the attached PDF for installation and operation instructions for the ASLLC Programmable Graphical Display (PGD). The...
Wed, 28 Mar, 2018 at 4:45 PM
Scroll Reversal Protection
The AIRSYS Lead-Lag Controller (ASLLC) has built-in protection to protect the HVAC equipment from shelter power loss.  In the event of a power interruption ...
Wed, 23 Sep, 2015 at 9:51 AM
Remote Monitoring and Control
Every AIRSYS controller (ASLLC) deployed in the US is set up for remote monitoring and control as a standard feature. This basic access to the HVAC system ...
Tue, 5 Apr, 2016 at 11:28 PM
Integrated Sequence of Operation: How to Coordinate Multiple AIRSYS Lead/Lag HVAC Controllers to Achieve Desired Control Scheme
While employing multiple lead/lag HVAC controllers for larger rooms has the benefit of added control and monitoring redundancies, care must be taken to coo...
Mon, 23 Apr, 2018 at 3:24 PM
ASLLC Controller Sticker
The controller sticker contains instructions for system operation and a listing of frequently used system settings. For a full list of all system settings, ...
Thu, 1 Nov, 2018 at 11:18 AM