Troubleshooting guide

MAGNUM VERSION 8 MANUAL REVISION 3.1
101
7.79. Lockout per Compressor
In software 8.05-C and newer, the feature to lockout only certain affected compressors when communications to an I/O
board is lost was added. The screen to setup this feature is found in MCS-Config under the MAG V8 screen under the
Lockout Info panel.
Each I/O board in the system will have its own column (Relay Output boards on the left, Sensor Input boards on the
right). Each circuit (compressor) will have its own row, as well as the entire chiller and no lockout options.
To setup this feature, first select Yes to the prompt ‘Enable locks based on Boards?’ Then simply select which
circuit(s) you want locked out when I/O communications are lost for each particular board. If ‘No Lockouts’ is selected,
then the unit will continue to run normally when communication with that board is lost. If ‘Lockout Chiller’ is selected,
then the entire unit will lockout when communication with that board is lost. If ‘Lockout Comp #X’ is selected then all the
circuit(s) that match will lockout when communication with that board is lost.
When communication is reestablished the circuit state is automatically reset from “LOST IO LOCKED” to “CMP
ANTICYCLE” or “COMP OFF/READY”.
7.80. Factory Authorized Startup and Run Hour Lockout
Two new features have been added to HVAC Magnum software (requires HVAC 806-B or greater)
 Factory Authorized Startup- this prevents the Magnum from running until Factory Authorization is given.
 Run Hour Lockout- At midnight if any compressor has reached a set number of run hours, the unit will be
disabled until an authorized service call is performed.
These functions can only be activated or reset from the Magnum keypad, not from MCS-Connect.
MCS-Config Setup: (requires MCS-Config 8.10D or greater) 7.80.1.
7.80.1.1. Factory Authorized Startup
In the Setup screen select the option Factory Startup Required.
In the authorization screen, setup a Factory Startup level code.