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[EnergyPlus_Support] CompactVAV system Heating Coil not sizing
I am trying to use a compact system desciption to define a basic VAV
system for a residential type building. After running this file the
designed heating capacity is zero. Cooling seems fine. Does any one
have any suggestions to what might be wrong?
(schedules, zones, etc. should be fine)
Thanks,
Neal
===============================================================
COMPACT HVAC:ZONE:VAV,
FamilyRoom, !- Zone Name
VAV, !- Air Handling System Name
BC1, !- Thermostat Name
autosize, !- Zone Supply Air Max Flow Rate {m3/s}
0, !- Zone Supply Air Min Flow Fraction
flow/person, !- Zone Outside Air Flow Type
0, !- Zone Outside Air Flow Rate {m3/s}
None, !- Reheat Coil Type
, !- Reheat Coil Availability Schedule
Normal; !- Zone Damper Heating Action
!- More zones that I have omitted for this post
COMPACT HVAC:ZONE:VAV,
Kitchen, !- Zone Name
VAV, !- Air Handling System Name
BC1, !- Thermostat Name
autosize, !- Zone Supply Air Max Flow Rate {m3/s}
0, !- Zone Supply Air Min Flow Fraction
flow/person, !- Zone Outside Air Flow Type
0, !- Zone Outside Air Flow Rate {m3/s}
None, !- Reheat Coil Type
, !- Reheat Coil Availability Schedule
Normal; !- Zone Damper Heating Action
!- =========== ALL OBJECTS IN CLASS: COMPACT HVAC:SYSTEM:VAV
===========
COMPACT HVAC:SYSTEM:VAV,
VAV, !- Air Handling System Name
On, !- System Availability Schedule
autosize, !- Supply Fan Max Flow Rate {m3/s}
autosize, !- Supply Fan Min Flow Rate {m3/s}
0.7, !- Supply Fan Total Efficiency
1000, !- Supply Fan Delta Pressure {Pa}
0.9, !- Supply Fan Motor Efficiency
1, !- Supply Fan Motor in Air Stream
Fraction
Chilled Water, !- Cooling Coil Type
BCCa, !- Cooling Coil Availability Schedule
, !- Cooling Coil Setpoint Schedule
12.778, !- Cooling Coil Constant Setpoint {C}
Gas, !- Heating Coil Type
BCHa, !- Heating Coil Availability Schedule
, !- Heating Coil Setpoint Schedule
43.333, !- Heating Coil Constant Setpoint {C}
0.8, !- Gas Heating Coil Efficiency
0, !- Gas Heating Coil Parasitic Electric
Load {W}
None, !- Preheat Coil Type
, !- Preheat Coil Availability Schedule
, !- Preheat Coil Setpoint Schedule
, !- Preheat Coil Constant Setpoint {C}
0.8, !- Gas Preheat Coil Efficiency
, !- Gas Preheat Coil Parasitic Electric
Load {W}
0, !- Maximum Outside Air Flow Rate {m3/s}
0, !- Minimum Outside Air Flow Rate {m3/s}
FIXED MINIMUM, !- Minimum Outside Air Control Type
Off, !- Minimum Outside Air Schedule Name
None, !- Economizer Type
NO LOCKOUT, !- Economizer Lockout
, !- Economizer Upper Temperature Limit {C}
, !- Economizer Lower Temperature Limit {C}
, !- Economizer Upper Enthalpy Limit {J/kg}
, !- Supply Plenum Name
; !- Return Plenum Name
!- =========== ALL OBJECTS IN CLASS: COMPACT HVAC:PLANT:CHILLED
WATER LOOP ===========
COMPACT HVAC:PLANT:CHILLED WATER LOOP,
CWL, !- Plant Loop Name
, !- Pump Schedule
INTERMITTENT, !- Pump Control Type
Default, !- Chiller Plant Operation Scheme Type
, !- Chiller Plant Operation Scheme Name
, !- Chilled Water Setpoint Schedule
7.2222, !- Chilled Water Constant Setpoint {C}
Constant Flow, !- Chilled Water Pump Configuration
179352, !- Primary Chilled Water Pump Rated Head
{Pa}
179352, !- Secondary Chilled Water Pump Rated
Head {Pa}
, !- Condenser Plant Operation Scheme Type
, !- Condenser Plant Operation Scheme List
Name
, !- Condenser Water Temperature Control
Type
, !- Condenser Water Setpoint Schedule
, !- Condenser Water Constant Setpoint {C}
179352; !- Condenser Water Pump Rated Head {Pa}
!- =========== ALL OBJECTS IN CLASS: COMPACT HVAC:PLANT:CHILLER
===========
COMPACT HVAC:PLANT:CHILLER,
Chiller1, !- Chiller Name
Electric Centrifugal Chiller, !- Chiller Type
autosize, !- Capacity {W}
2.696, !- COP {W/W}
AIR COOLED, !- Condenser Type
1; !- Priority
!- =========== ALL OBJECTS IN CLASS: COMPACT HVAC:PLANT:HOT WATER
LOOP ===========
COMPACT HVAC:PLANT:HOT WATER LOOP,
HWL, !- Plant Loop Name
On, !- Pump Schedule
INTERMITTENT, !- Pump Control Type
Default, !- Hot Water Plant Operation Scheme Type
, !- Hot Water Plant Operation Scheme List
Name
, !- Hot Water Setpoint Schedule
71.111, !- Hot Water Constant Setpoint {C}
Constant Flow, !- Hot Water Pump Configuration
179352; !- Hot Water Pump Rated Head {Pa}
!- =========== ALL OBJECTS IN CLASS: COMPACT HVAC:PLANT:BOILER
===========
COMPACT HVAC:PLANT:BOILER,
Boiler1, !- Boiler Name
Hot Water Boiler, !- Boiler Type
autosize, !- Capacity {W}
0.8, !- Efficiency
NaturalGas, !- Fuel Type
1; !- Priority
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