Do you have single-zone HVAC systems, or a multi-zone system with terminal units?

If you have single-zone systems, you can just output the heating/cooling coil energy for each system:

Output:Variable,*,Cooling system:
Output:Variable,,Cooling Coil Total Cooling Energy,hourly;
Output:Variable,*,Heating Energy,hourly; !- HVAC Sum [J]
Output:Variable,,Heating Coil Heating Energy,hourly;

If you have a multi-zone system, you'd have to sum the sensible and latent loads. You can output the sensible loads for each zone using:

Output:Variable,*,Zone using:
Output:Variable,,Zone Air Terminal Sensible Heating Energy,hourly;
Output:Variable,*,Zone Energy,hourly; !- HVAC Sum [J]
Output:Variable,,Zone Air Terminal Sensible Cooling Energy,hourly;

The latent loads can be output using:

Output:Variable,*,Zone using:
Output:Variable,,Zone Total Internal Latent Gain Energy,hourly;
Output:Variable,*,Zone Energy,hourly; !- Zone Sum [J]
Output:Variable,,Zone Infiltration Total Heat Gain Energy,hourly;