Setup Baseline system configuration for system sizing runs.
This navigator stage consists of a number of sub steps designed to guide users through the process of setting up the baseline & proposed HVAC systems. It is important to have HVAC grouping schemes created before attempting the HVAC navigator steps.
Users must create thermal grouping schemes for both the Baseline & Proposed HVAC networks in co-ordination with the actual HVAC system design. For example, if the proposed HVAC system consists of 10 fresh AHU’s feeding 20 FCU’s per AHU the baseline system must also reflect this system configuration, unless systems 1 – 4 are required to be modelled as the baseline system
(single zone systems). Refer to ASHRAE 90.1 Appendix G thermal grouping section.
Users are presented with the eight ASHRAE 90.1 baseline HVAC systems. Users must identify which baseline system needs to be modelled for the project in question. See ASHRAE 901. Appendix G Tables G3.1.1A/B for baseline system types. Once the required baseline system(s) has been identified users must delete the irrelevant baseline systems, this can be done by selecting the “S” icon in the ApHVAC tool bar & selecting the required networks for deletion. Multiple copies of the required baseline system must be made depending of the proposed HVAC system design.
For the below example four copies of baseline system 007 where made & positioned in a tidy fashion on the ApHVAC work space.
Baseline HVAC network should be renamed & organised accordingly. Selecting the “S” icon & double clicking any ApHVAC baseline network will allow users rename HVAC networks.
