Select ‘Notional’ from the Current model selector at the top right of the screen. You can then inspect the notional building. Note the changes to glazing (and in some cases doors), constructions, Apache Systems and Room Data. You may if you wish perform test simulations on the notional building to check its performance over periods of a few days up to a year.
Under the NCM rules, the notional building is generated automatically from the actual building and is in almost every respect uneditable. The only attribute of the notional building that may in some instances be edited is the heating system fuel in the appropriate Apache System(s). If natural gas is not available at the site, this fuel may be switched to oil. This can be done in the Apache System utility, accessed from any suitable View.
