Does anyone know how to model the boiler hot water supply temperature to
reset based on OA temp with Visual DOE? Or does anyone know how to
program it directly into the DOE-2 input? I am trying to meet the
ASHRAE 90.1-2004 section G3.1.3.4 requirement.
Allison Gaiko, PE, LEED AP
Allison,
Here are portions of the .inp file from an eQUEST model where I followed
the G3.1.3.4 requirement.
Regards,
Bill
"Hot-Water Supply Temp Reset" = DAY-SCHEDULE-PD
TYPE = RESET-TEMP
OUTSIDE-HI = 50
OUTSIDE-LO = 20
SUPPLY-HI = 180
SUPPLY-LO = 150
..
"Hot-Water Supply Temp Reset Week" = WEEK-SCHEDULE-PD
TYPE = RESET-TEMP
DAY-SCHEDULES = ( "Hot-Water Supply Temp Reset" )
..
"Hot-Water Supply Temp Reset Sch" = SCHEDULE-PD
TYPE = RESET-TEMP
MONTH = ( 12 )
DAY = ( 31 )
WEEK-SCHEDULES = ( "Hot-Water Supply Temp Reset Week" )
..
"Hot Water Loop" = CIRCULATION-LOOP
TYPE = HW
LOOP-DESIGN-DT = 50
PIPE-HEAD = 21.6
LOOP-OPERATION = DEMAND
DESIGN-HEAT-T = 180
HEAT-SETPT-CTRL = OA-RESET
HEAT-RESET-SCH = "Hot-Water Supply Temp Reset Sch"
LOOP-PUMP = "HW Loop pump"
..
William Bishop, EIT, LEED(r) AP