The systax used for air system names in BTAP
is:
sys_abbr|oa|shr>?|sc>?|sh>?|ssf?|zh>?|zc>?|srf>?
Field “sys_abbr”¶ ↑
Description¶ ↑
System type abbrevation
Values¶ ↑
“sys_1”, “sys_2”, …, “sys_6” for NECB
Field “oa”¶ ↑
Description¶ ↑
Indicates whether there is return air in the supply air
Values¶ ↑
-
“doas”: dedicated-outdoor air system
-
“mixed”: system with return air in supply air
Field “shr>?”¶ ↑
Description¶ ↑
Type of heat recovery
Values¶ ↑
-
“none”: no heat recovery
-
“erv”: energy recovery device (sensible+latent)
Field “sc>?”¶ ↑
Description¶ ↑
System cooling equipment
Values¶ ↑
-
“none”: no cooling equipment
-
“c-chw”: coil-chilled-water
-
“dx”: direct-expansion
-
“ccashp”: cold-climate air-source heat pump
-
“ashp”: air-source heat pump
Field “sh>?”¶ ↑
Description¶ ↑
Primary and backup heating equipment
Values¶ ↑
-
“none”: no heating equipment
-
“c-e”: coil-electric
-
“c-hw”: coil-hot-water
-
“c-g”: coil-gas
-
“ccashp”: cold-climate air-source heat pump
-
“ccashp>c-e”: cold-climate air-source heat pump with electric coil backup
-
“ccashp>c-g”: cold-climate air-source heat pump with natural gas coil backup
-
“ccashp>c-hw”: cold-climate air-source heat pump with hot-water coil backup“
-
“ashp”: air-source heat pump
-
“ashp>c-e”: air-source heat pump with electric coil backup
-
“ashp>c-g”: air-source heat pump with natural gas coil backup
-
“ashp>c-hw”: air-source heat pump with hot-water coil backup“
Field “ssf>?”¶ ↑
Description¶ ↑
System supply fan
Values¶ ↑
-
“cv”: constant-volume
-
“vv”: variable-volume
Field “zh>?”¶ ↑
Description¶ ↑
Zone heating equipment
Values¶ ↑
-
“none”: no zone heating
-
“b-e”: baseboard electric
-
“b-hw”: baseboard hot-water
-
“tpfc”: two-pipe fan coil
-
“fpfc”: four-pipe fan coil
-
“pthp”: packaged-terminal heat pump
-
“pthp>c-e”: packaged-terminal heat pump with electric coil backup
-
“pthp>c-g”: packaged-terminal heat pump with natural gas coil backup
-
“pthp>c-hw”: packaged-terminal heat pump with hot-water coil backup
-
“vrf”: variable-refrigerant flow
-
“vrf>c-e”: variable-refrigerant flow with electric coil backup
-
“vrf>c-hw”: variable-refrigerant flow with hot-water coil backup
Field “zc>?”¶ ↑
Desciption¶ ↑
Zone cooling equipment
Values¶ ↑
-
“none”: no zone cooling
-
“tpfc”: two-pipe fan coil
-
“fpfc”: four-pipe fan coil
-
“ptac”: packaged-terminal air-conditioner
-
“pthp”: packaged-terminal heat-pump
-
“vrf”: variable-refrigerant flow
Field “srf>?”¶ ↑
Description¶ ↑
System return fan
Values¶ ↑
-
“cv”: constant-volume
-
“vv”: variable-volume
Examples of System Names¶ ↑
sys_1|doas|shr>erv|sc>dx|sh>c-e|ssf>cv|zh>b-e|zc>ptac|srf>none
sys_1|doas|shr>erv|sc>dx|sh>c-e|ssf>cv|zh>b-hw|zc>ptac|srf>none
sys_1|doas|shr>erv|sc>dx|sh>c-hw|ssf>cv|zh>b-e|zc>ptac|srf>none
sys1|doas|shr>erv|sc>dx|sh>c-hw|ssf>cv|zh>b-hw|zc>ptac|srf>none
sys1|doas|shr>erv|sc>ashp|sh>ashp>c-e|ssf>cv|zh>b-e|zc>ptac|srf>none
sys_1|doas|shr>erv|sc>dx|sh>c-g|ssf>cv|zh>tpfc|zc>fpfc|srf>none
sys_1|doas|shr>erv|sc>c-chw|sh>c-g|ssf>cv|zh>tpfc|zc>fpfc|srf>none
sys_1|doas|shr>erv|sc>ashp|sh>ashp>c-e|ssf>cv|zh>tpfc|zc>fpfc|srf>none
sys_3|mixed|shr>erv|sc>dx|sh>c-e|ssf>cv|zc>none|zh>b-e|srf>none
sys_3|mixed|shr>erv|sc>dx|sh>c-e|ssf>cv|zc>none|zh>b-hw|srf>none
sys_3|mixed|shr>erv|sc>dx|sh>c-hw|ssf>cv|zc>none|zh>b-e|srf>none
sys_3|mixed|shr>erv|sc>dx|sh>c-hw|ssf>cv|zc>none|zh>b-hw|srf>none
sys_3|mixed|shr>erv|sc>ashp|sh>ashp>c-e|ssf>cv|zc>none|zh>b-e|srf>none
sys_4|mixed|shr>erv|sc>dx|sh>c-e|ssf>cv|zc>none|zh>b-e|srf>none
sys_4|mixed|shr>erv|sc>dx|sh>c-e|ssf>cv|zc>none|zh>b-hw|srf>none
sys_4|mixed|shr>erv|sc>dx|sh>c-g|ssf>cv|zc>none|zh>b-e|srf>none
sys_4|mixed|shr>erv|sc>dx|sh>c-g|ssf>cv|zc>none|zh>b-hw|srf>none
sys_4|mixed|shr>erv|sc>ashp|sh>ashp>c-e|ssf>cv|zc>none|zh>b-e|srf>none
sys_5|doas|shr>erv|sc>dx|sh>c-g|ssf>cv|zc>tpfc|zh>tpfc|srf>none
sys_5|doas|shr>erv|sc>c-chw|sh>c-g|ssf>cv|zc>tpfc|zh>tpfc|srf>none
sys_5|doas|shr>erv|sc>ashp|sh>ashp>c-e|ssf>cv|zc>tpfc|zh>tpfc|srf>none
sys_6|mixed|shr>erv|sc>c-chw|sh>c-e|ssf>vv|zc>none|zh>b-e|srf>vv
sys_6|mixed|shr>erv|sc>c-chw|sh>c-e|ssf>vv|zc>none|zh>b-hw|srf>vv
sys_6|mixed|shr>erv|sc>c-chw|sh>c-hw|ssf>vv|zc>none|zh>b-e|srf>vv
sys_6|mixed|shr>erv|sc>c-chw|sh>c-hw|ssf>vv|zc>none|zh>b-hw|srf>vv
sys_6|mixed|shr>erv|sc>ashp|sh>ashp>c-e|ssf>vv|zc>none|zh>b-hw|srf>vv