Engineering Software Introduction
E20-II is a collection of software tools (programs)
created specifically for the HVAC system designer. These programs
are specifically crafted to increase productivity and accuracy,
improve analysis capabilities and job documentation, and add
a level of "marketability" to a designer's estimates.
Individual programs are available to assist in heating &
cooling load estimating, annual building operating cost estimating,
duct system design and layout, water and refrigerant piping system
design, end economic life cycle analysis. These programs are
written by HVAC systems engineers for HVAC systems engineers,
and are supported by more HVAC system engineers with years of
field application experience.
Program Descriptions
HAP (Hourly Analysis Program)
HAP is a dual function program - full-featured load
estimating and system sizing for commercial buildings plus versatile
hour-by-hour energy and operating cost analysis. Thermal loads
are calculated using the ASHRAE-endorsed Transfer Function load
method. Energy analysis uses full 8760 hours-per-year analysis
to evaluates operation of a wide variety of air-handling and plant
equipment. Operating costs are computed based on energy use and
demand charges. A wide range of tabular and graphical outputs
is available. ($1195)
System Design Loads
Design load estimating and system sizing for commercial
buildings. Load calculations use ASHRAE-endorsed Transfer Function
methodology. Specific system and component sizing for a wide
variety of air-handling system types, with up to 250 zones per
system. Includes a wide variety of graphical and tabular outputs.
($795)
Block Load
Full-featured design load estimating program for
commercial buildings. Combines easy-to-use operation with fast,
accurate load calculations. Efficient tool for sizing HVAC systems
and equipment. Uses ASHRAE-endorsed Transfer Function load method.
Suitable for both single and multiple-zone projects. Includes
graphical output of both weather and psychrometric data. ($495)
Block Load Lite
A simplified, single-zone version of the Block Load
program crafted especially for the light commercial marketplace.
A simple, three-step input process quickly produces concise,
to-the-point printouts based on the ASHRAE-endorsed Transfer Function
load method. Close compatibility with the Block Load program
makes upgrading to the multi-zone analysis of Block Load a breeze.
($195)
Duct Design
Versatile duct design program which fully implements
ASHRAE and SMACNA design procedures. Analyzes both supply and
return systems. Sizes duct using equal friction and/or static
regain methods. Calculates airflow rates, sizes, pressure losses,
central fan requirements, duct leakage, duct heat gain/loss, gage
and weight. Provides many useful outputs including a bill of
materials. ($295)
DuctLINK
Powerful software that integrates Duct Design program
features with Computer Aided Drafting (CAD) systems. Duct system
inputs made via a single-line sketch in a CAD system are imported
into DuctLINK for design calculations. Sizing results are then
used to generate a fully annotated double-line drawing of the
duct system, drawn to scale. The end result is vast time savings
in producing working drawings for duct systems. Compatible with
any CAD system that can handle DXF format drawing files. ($595)
Engineering Economic Analysis
Used to compare the lifecycle economics of HVAC system
design alternatives and alternative building designs. Provides
features ranging from simple payback and cash flow analyses to
detailed lifecycle analyses considering many cost details including
taxes, depreciation, total present worth, and rate of return.
($95)
Water Piping Design
Sizes water piping for both open and closed loop
systems. Evaluates use of steel, copper or plastic as piping
material. Computes required pipe sizes, flow velocities, pressure
losses and balancing requirements. Also generates a bill of materials.
($150)
Refrigerant Piping Analysis
Sizes suction, discharge and liquid refrigerant lines.
Performs calculations for either steel or copper piping, and
for refrigerants 12, 22, 500, 502 and 717. Able to size single
and double suction risers. ($95)
Training Modules
Hands-on training is available for certain E20-II
programs. These modules are offered periodically on a regional
basis to existing E20-II users, as well as new and prospective
licensees. (Tuition is NOT included in the E20-II license fees.)
Standard courses are available for HAP, System Design Loads,
Block Load, Block Load Lite, Duct Design, and DuctLINK.
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