In your case there is no vertical displacement of the system at the hanger location after pulling the pin upon initial installation which results to same theoretical and actual cold load. But in case of the system will displace under the load this will lead to extension or compression of your spring which result to new load and this new load is the actual cold load.
Did you provide additional load case for calculating Actual cold load?
How did you set the load case?

1. Theoretical cold load is the load to which the spring should be preset prior to installation, this is done in the factory and the spring is pinned to keep at this value. Actual cold load is the load of the spring after pulling the pin.
2. The load case WNC stands for Weight No Content.