E+, HVAC templates VRF and DOAS, relations between outputs

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Ok thank you. About the DOAS cooling coil, what is it role in E+ ?
I thought, it was to cool down the outdoor air or mixed air but with or without the heat exchanger, the DOAS cooling coil rate doesnt add up to the vrf heat pump total cooling rate. When I set some parameters, just the values of my vrf cooling coil and my vrf heat pump total cooling rate vary. I know how work the system in real but in E+, I dont really understand how work the heat exchanger and the cooling coil for a VRF and a DOAS. The results I get are not really clear for me

When you identify a cooling coil as DOAS it means that coil sees 100% outdoor air as the entering conditions and, more importantly, the design coil air flow rate can be lower (W/m3/s [cfm/ton]) than a normal coil since DOAS coils may have lower air flow rate to better dehumidify. In your simulation the VRF and DOAS are independent but do serve the same zone. The DOAS Cooling Coil is not connected to your VRF system. Look at the Model Room VRF Cooling Coil to compare to the VRF system output. You can use a text editor to edit the *.expidf and search for coil names or inspect the inputs.

The *.expidf is the file that is created from HVACTemplate objects and is the one actually used to run the simulation.

Ok I see, so I guess, to have the total cooling capacity of my room and my VRF, I need to add this DOAS cooling coil rate to the vrf cooling coil ? Because in my project, my vrf will be connected to the doas coil.
I have seen For the electric energy in the main summary, E+, add the 2 electric energy to have to total electric energy.

To get the total delivered cooling load to the room, add VRF + DOAS cooling coils. To get VRF Heat Pump Total Cooling Rate, only use Model Room VRF Cooling Coil Total Cooling Coil Rate (these 2 should match except for piping losses). To get total outdoor air total cooling coil rate, only use DOAS Cooling Coil Total Cooling Coil Rate. To get the total cooling load of the room without outdoor air, use Zone Predicted Sensible Load to Cooling Setpoint Heat Transfer Rate. Yes, total electricity is the sum of both systems. So it depends on what information you want to know which variables to use.