[Equest-users] Parametric run with static pressure

[Aulbach, John]

There is a BDL Keyword called SUPPLY-STATIC. See the magenta Keyword
below..
 

SYSTEM


Specifies the data for a secondary HVAC distribution system. The
information provided includes system type, size, zones served, optional
components, operating schedules, temperature and humidity limits,
control strategies, outside air requirements, and fan static pressures
and efficiencies. U-name is required so that the SYSTEM can be
identified in reports. 

A SYSTEM command must precede the input for any ZONEs that belong to the
system. This allows the program to determine zone default values that
depend on system type.

Example input:

"Flr:1 Air Handler" = SYSTEM 
TYPE               = DDS
HEAT-SOURCE        = HOT-WATER
RETURN-AIR-PATH    = PLENUM-ZONES
DDS-TYPE           = DUAL-FAN
MAX-SUPPLY-T       = 120
HEATING-SCHEDULE   = "Heat-Off Schedule"
MIN-SUPPLY-T       = 60
COOLING-SCHEDULE   = "Cool-Off Schedule"
COOL-RESET-SCH     = "Cool Reset Sched"
COOL-CONTROL       = RESET
ECONO-LIMIT-T      = 65
FAN-SCHEDULE       = "Fan Operation"
FAN-CONTROL        = SPEED
SUPPLY-STATIC      = 5.5
SUPPLY-EFF         = 0.55
NIGHT-CYCLE-CTRL   = CYCLE-ON-ANY
MIN-FLOW-RATIO     = 0.3
HW-LOOP            = "Heating Loop"
PHW-LOOP           = "Heating Loop"
CHW-LOOP           = "Cooling Loop"
..


________________________________

From: equest-users-bounces at lists.onebuilding.org
[mailto:equest-users-bounces at lists.onebuilding.org] On Behalf Of Eric
Youngson
Sent: Monday, October 13, 2008 12:09 PM
To: equest-users at lists.onebuilding.org
Subject: [Equest-users] Parametric run with static pressure



Sim list,

                I am doing an ECM with reduced static pressure and using
the parametric run option. When I select, HVAC System > Fan Power, I get
options for Cooling Static Pressure, Cooling Static Pressure & Return
Static Pressure. This seems strange since I cannot find a BDL keyword
corresponding to Cooling or Heating Static Pressure.

I was expecting to see Supply Static Pressure but it is not available. I
assume that choosing the same value for Heating & Cooling Static
Pressure would amount to the same thing.

                Does anyone else know if I am missing something?

 

Thanks

 

Eric Youngson

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