100., !- Water Outlet Upper Temperature Limit {C}
ConstantFlow; !- Boiler Flow Mode
===========================
I do not know whether PLR=1.2 make sense. Optimum PLR = 1, also does not make sense.
The heater would be on all the time. Optimum PLR is usually set to 0.5.
i want :when boiler is on, it works with full capacity and PLR=1 when boiler is on
but as i highlighted in file excel when inlet boiler temperature reahced 67C then boiler will be off , i set
HW Loop Temp Schedule, !- Name
Temperature, !- Schedule Type Limits Name
Through: 12/31, !- Field 1
For: Alldays, !- Field 2
Until: 24:00, 67; !- Field 4
PlantLoop,
Hot Water Loop, !- Name
Water, !- Fluid Type
, !- User Defined Fluid Type
Hot Loop Operation, !- Plant Equipment Operation Scheme Name
HW Supply Outlet Node, !- Loop Temperature Setpoint Node Name
100, !- Maximum Loop Temperature {C}
5, !- Minimum Loop Temperature {C}
autosize, !- Maximum Loop Flow Rate {m3/s}
0.0, !- Minimum Loop Flow Rate {m3/s}
SetpointManager:Scheduled,
Hot Water Loop Setpoint Manager, !- Name
Temperature, !- Control Variable
HW Loop Temp Schedule, !- Schedule Name
HW Supply Outlet Node; !- Setpoint Node or NodeList Name
and as you see in ecxel file when inlet temperature of boiler is greater than 67 then boiler will off,
but it is strange i attached 2 file, one of them is the same as the first but with this difference that i :
Schedule:Compact,
HW Loop Temp Schedule, !- Name
Temperature, !- Schedule Type Limits Name
Through: 12/31, !- Field 1
For: Alldays, !- Field 2
Until: 24:00, 67; !- Field 4
PlantLoop,
Hot Water Loop, !- Name
Water, !- Fluid Type
, !- User Defined Fluid Type
Hot Loop Operation, !- Plant Equipment Operation Scheme Name
HW Supply Inlet Node, !- Loop Temperature Setpoint Node Name
100, !- Maximum Loop Temperature {C}
5, !- Minimum Loop Temperature {C}
autosize, !- Maximum Loop Flow Rate {m3/s}
0.0, !- Minimum Loop Flow Rate {m3/s}
SetpointManager:Scheduled,
Hot Water Loop Setpoint Manager, !- Name
Temperature, !- Control Variable
HW Loop Temp Schedule, !- Schedule Name
HW Supply Inlet Node; !- Setpoint Node or NodeList Name
but i see the result that i send it to you (two excel files) are the same , i dont undrestand why?
and also i dont undrestand why INDIRECT WATER HEATER:Water Heater Gas Consumption Rate [W](TimeStep)= 0 in file excels?
and also i see winter design day repeats several times in file excels!