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RE: [EnergyPlus_Support] Overwriting scheduled setpoint with EMS
I suspect the unary ?-? operator in ?IF SenzorTempSpoljasnjeg < - 12.0? may not get parsed properly. EMS only supports unary minus sign in some cases, like right after a ?=? in a SET statement (historically it wasn?t supported at all). Try replacing all instances of ?-x? with ?(0 ? x)?
From: EnergyPlus_Support@xxxxxxxxxxxxxxx [mailto:EnergyPlus_Support@xxxxxxxxxxxxxxx] On Behalf Of marko.ignjatovic1980
Sent: Wednesday, October 03, 2012 11:55 AM
To: EnergyPlus_Support@xxxxxxxxxxxxxxx
Subject: [EnergyPlus_Support] Overwriting scheduled setpoint with EMS
Hi all,
I am having trouble overwriting hot water loop scheduled setpoint temperature which is my case 90oC. I am leaving all object classes related to this. I am trying to put control in hot water loop, and that scheduled temperature varies with outside temperature, since this is the most common heating control in my country. Maybe I didn't understand EMS guide well, because whatever I do, setpoint remains 90
Here it comes!
Schedule:Compact,
HW Loop Schedule, !- Name
Temperature, !- Schedule Type Limits Name
Through: 12/31, !- Field 1
For: AllDays, !- Field 2
Until:24:00, !- Field 3
90; !- Field 4
!- =========== ALL OBJECTS IN CLASS: BOILER:HOTWATER ===========
Boiler:HotWater,
Central Boiler, !- Name
NaturalGas, !- Fuel Type
autosize, !- Nominal Capacity {W}
0.95, !- Nominal Thermal Efficiency
LeavingBoiler, !- Efficiency Curve Temperature Evaluation Variable
Boiler Efficiency, !- Normalized Boiler Efficiency Curve Name
90, !- Design Water Outlet Temperature {C}
autosize, !- Design Water Flow Rate {m3/s}
0, !- Minimum Part Load Ratio
1.2, !- Maximum Part Load Ratio
1, !- Optimum Part Load Ratio
Central Boiler Inlet Node, !- Boiler Water Inlet Node Name
Central Boiler Outlet Node, !- Boiler Water Outlet Node Name
99.9, !- Water Outlet Upper Temperature Limit {C}
ConstantFlow, !- Boiler Flow Mode
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