[EnergyPlus_Support] Primary-Secondary System zero flow issue

["miaoworld" <myang04@xxxxxxx>]

Greetings,

I have a primary and secondary chilled water system, and I am keeping
having zero flow.  I have specified the primary pump consumption and
flow rate for the primary chilled water loop, but the primary loop and
condenser loop (Autosized) is zero flow.

Any suggestions will be appreciated.

Thanks.

Miao(Eric)

   ************* Beginning System Sizing Calculations
   ** Warning ** SizeCondDemandSide: Calculated Plant Sizing Design
Volume Flow Rate=[0.00] is too small. Set to 0.0
   **   ~~~   ** ..occurs for Condenser Loop=CHILLED WATER LOOP
CONDENSER WATER LOOP
   ** Warning ** SizeCondSupplySide: Calculated Plant Sizing Design
Volume Flow Rate=[0.00] is too small. Set to 0.0
   **   ~~~   ** ..occurs for Condenser Loop=CHILLED WATER LOOP
CONDENSER WATER LOOP
   ** Warning ** SizePump: Calculated Pump Nominal Volume Flow
Rate=[0.00] is too small. Set to 0.0
   **   ~~~   ** ..occurs for Pump=CHILLED WATER LOOP CNDW SUPPLY PUMP


  ******Component sizing

 Component Sizing, CHILLER:ELECTRIC:EIR, CHILLER, Reference Evaporator
Volumetric Water Flow Rate [m3/s],   0.0000    
 Component Sizing, CHILLER:ELECTRIC:EIR, CHILLER, Reference Capacity
[W],   0.0000    
 Component Sizing, CHILLER:ELECTRIC:EIR, CHILLER, Reference Condenser
Volumetric Water Flow Rate [m3/s],   0.0000    
 Component Sizing, PUMP:CONSTANT SPEED, HOT WATER LOOP HW SUPPLY PUMP,
Rated Volumetric Flow Rate [m3/s],  0.55510E-01
 Component Sizing, PUMP:CONSTANT SPEED, HOT WATER LOOP HW SUPPLY PUMP,
Rated Power Consumption [W],   14182.    
 Component Sizing, PUMP:VARIABLE SPEED, CHILLED WATER LOOP CHW SEC
SUPPLY PUMP, Rated Power Consumption [W],   158.35    
 Component Sizing, CONDENSER LOOP, CHILLED WATER LOOP CONDENSER WATER
LOOP, Volume of the condenser loop [m3],   0.0000    
 Component Sizing, CONDENSER LOOP, CHILLED WATER LOOP CONDENSER WATER
LOOP, Maximum Loop Volumetric Flow Rate [m3/s],   0.0000    
 Component Sizing, COOLING TOWER:SINGLE SPEED, MAIN TOWER, Autosized
design water flow rate [m3/s],   0.0000    
 Component Sizing, COOLING TOWER:SINGLE SPEED, MAIN TOWER, Fan power
at design air flow rate [W],   0.0000    
 Component Sizing, COOLING TOWER:SINGLE SPEED, MAIN TOWER, Design air
flow rate [m3/s],   0.0000    
 Component Sizing, COOLING TOWER:SINGLE SPEED, MAIN TOWER, Autosized
tower UA value at the design air flow rate [W/C],   0.0000    
 Component Sizing, COOLING TOWER:SINGLE SPEED, MAIN TOWER, Air flow
rate in free convection regime [m3/s],   0.0000    
 Component Sizing, COOLING TOWER:SINGLE SPEED, MAIN TOWER, Tower UA
value in free convection regime [W/C],   0.0000    
 Component Sizing, PUMP:VARIABLE SPEED, CHILLED WATER LOOP CNDW SUPPLY
PUMP, Rated Volumetric Flow Rate [m3/s],   0.0000    
 Component Sizing, PUMP:VARIABLE SPEED, CHILLED WATER LOOP CNDW SUPPLY
PUMP, Rated Power Consumption [W],   0.0000   



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