I use the 'create DOE prototype building' measure to establish the model and change the u-value of the window in the simple glazeing system window material while keep the rest as default. The EUI shows a reasonable increase when I largen the u-value. However, after I change the HVAC system by applying 'VRFwithDOAES' measure. The EUI incresed a lot while the U value keep decreasing. Is there anyone meet the same problem ?