6.7.1 Basic System Information

HVAC System Name
Applicability	All system types A unique descriptor for each HVAC System
Units	Text, unique
Input Restrictions	When applicable, this input should match the tags that are used on the plans.
Baseline Rules	None

System Type
Applicability	All system types
Definition	A unique descriptor which identifies the following attributes of an HVAC System: Number of air decks (one to three); Constant or variable air flow; Type of terminal device; and Fan configuration for multiple deck systems.
Units	None
Input Restrictions	As designed
Baseline Rules	Based on the prescribed system type (see Figure 6.1.2-1). The baseline system types are shown in the table below.

Table 6.7.1-1: "Baseline Building System Type"

Baseline Building System	System Type
System 1 – PTAC	Single Zone Heating and Cooling
System 2 – PTHP	Single Zone Heating and Cooling
System 3 – PSZ-AC	Single Zone Heating and Cooling
System 4 – PSZ-HP	Single Zone Heating and Cooling
System 5 – Packaged VAV with Reheat	Single Duct VAV
System 6 – Packaged VAV with PFP boxes	Single Duct VAV
System 7 – VAV with Reheat	Single Duct VAV
System 8 – VAV with PFP boxes	Single Duct VAV

Total Cooling Capacity
Applicability	All system types
Definition	The installed cooling capacity of the project. This includes all: Chillers; Built-up DX; and, Packaged cooling units.
Units	Cooling tons (12,000 Btu/h per ton)
Input Restrictions	As designed. This could be calculated by the program from the proposed design building description or a separate load calculation may be used. Unmet load hours for the simulation shall not exceed 300 annually. Weather conditions used in sizing runs shall be based on 1% dry-bulb and 1% wet-bulb cooling design temperatures.
Baseline Rules	Autosize. The cooling capacity shall be oversized by 15%. If the number of unmet load hours of the proposed design exceeds the number of unmet load hours of the baseline by more than 50, decrease the cooling capacity as indicated in Figure 2.4-1 and Figure 2.5.2-1.