PROGRAM 
DEMONSTRATION LIMITS 
Bill of Materials

Automatic takeoff
list of parts from ducts drawn with Manual D Ductsize or entered with Tabular Manual D Ductsize
is limited to the first 6 trunks and first 6 runouts.

8 duct parts 
10 fitting parts 
6 register or diffuser parts 
6 nonductwork parts 

Chvac

Two Rooms 
10 foot wall heights 
35 foot wall lengths 
15 people per room


Ductsize 

Drawing Board 
Drawing Board is limited in calculation by the program it
is linked with, not by the size of the drawings. A demo version of Drawing Board in RHVAC
will only calculate for 3 rooms. In DUCTSIZE, a demo version of Drawing
Board will only calculate for 6 trunks and 6 runout ducts.. 

DPipe 
Allows up to 20 pipe sections 

ECA 
Allows heating and cooling loads up to 17,000 Btuh 

ECoord 
One drawing per project 
Maximum of two devices per drawing 

Electrical Tools 
Wire Sizing 
The maximum circuit voltage is 400 volts. The maximum conductor ampacity is 15 amps. The maximum motor kVA is 10 kVA. The maximum motor horsepower is 10 hp. 
Conduit Sizing 
The maximum number of conductor types in a conduit is one. 
Voltage Drop 
The maximum number of components in a network is one. The maximum number of circuit loads in a network is one. 
Short Circuit 
The maximum number of components in a network is one. The maximum number of motors or generators in a network is one. 
Room Lighting 
The maximum room size is 12 feet by 12 feet. 
Service Entrance Panel Sizing 
The maximum number of circuits is one. 
Motor Equipment Sizing 
The maximum motor voltage is 115 volts. 
Power & Current Calculator 
The maximum circuit voltage is 400 volts. The maximum conductor ampacity is 15 amps. The maximum motor kVA is 10 kVA. The maximum motor kilowatts is 10 kW. The maximum motor horsepower is 10 hp. 
Ohm's Law Calculator 
The maximum current is 15 amps. The maximum voltage is 400 volts. The maximum resistance is 25 ohms. 
Power Factor Correction Capacitor Sizing 
The maximum motor kilowatts is 10 kW. The maximum motor voltage is 400 volts. The maximum motor current is 15 amps. 

Energy Audit 
General Project Data 
Total Building Area 
560 Square Feet 
Design Cooling Load 
20,000 Btuh 
Design Heating Load 
20,000 Btuh 
HVAC System Limits 
Cooling Load 
20,000 Btuh 
Heating Load 
20,000 Btuh 
Appliance Limits 
Indoor Lighting 
0.1 Watts/Square Ft. 
Outdoor Lighting 
100 Watts 
Appliance Quantity 
1 
Appliance Usage 
100 KWH/Year 
Gas Appliance Quantity 
1 
Gas Appliance Usage 
100 Therm/Year 
Range Quantity 
1 
Range Usage 
100 KWH/Person 
Misc. Range Electrical Usage 
100 KWH 
Dryer Quantity 
1 
Dryer Usage 
100 KWH/Person 
Misc. Dryer Electrical Usage 
100 KWH 
Water Heater Limits 
Water Heater Daily Usage 
30 Gallons 
Water Heater Peak Usage 
30 Gallons 
Number of Daily Uses 
1 
Number of Peak Uses 
1 
Disaggregation 
Monthly Utility Bill 
Up to $125 

Fire 
Allows up to 11 nodes (10 pipe sections) 

GasVent 

Heavent 
The demo version will not save files. 

HVAC Tools 
Duct Sizing 
The maximum design air allowed is 300 CFM 
Wire Sizing 
The maximum circuit voltage allowed is 400 volts and the
maximum unit ampacity allowed is 15 amp. 
Coil Interpolation 
The maximum outdoor dry bulb temperature allowed is 86
degrees F. 
State Point Psychrometrics 
The minimum elevation allowed is 15,000 feet and maximum
dry bulb temperature allowed is 80 deg F. 
Mixed Air Psychrometrics 
The minimum elevation allowed is 15,000 feet and maximum
dry bulb temperature allowed is 80 deg F. 
Fan Curve Analysis 
The maximum rated and specified air allowed is 1,000 CFM. 
Fan Cost Analysis 
The brake horsepower allowed is 2 and the CFM allowed
is 1,000 CFM 
UFactor Calculation 
The maximum number of different materials allowed per
cross section is 4 (not counting the framing percentage). 
Refrigeration Line Sizing 
The system capacity allowed is 5 MBtuh 
Hydraulic Pipe Sizing 
The flowrate allowed is 2 GPM 
Hot/Chilled Water Pipe Sizing 
The pipe length is limited to 20 feet 
Gas Pipe Sizing 
The pipe length is limited to 20 feet 

HSym 
This program is limited to less than twenty sections in
your system 

HVAC Solution 
The paste function into other programs such as AutoCAD and Word has been disabled. 
Projects may only be saved under a single project name. 
Equipment schedules are limited to a single line per schedule. 
The tools menu is disabled. 
The phrase "HVAC Solution Demo" is printed out across each schematic. 

InPoint 
Maximum room width is 12 feet (4 meters) 
Maximum room length is 12 feet (4 meters) 

Life 
Allows entry of costs up to $5,000.00 

Light 
Limited to 3 rooms 
Limited to room size of 12 x 12 

Manual D Ductsize 
Maximum of 6 trunks and 6 runouts 

OutPoint 
The maximum grid is limited to at most 20 rows and 20
columns 
The maximum number of luminaires is 3 

Panel 
Maximum of 6 network devices 
One of each of the following: 
Motor
Capacitor bank
General purpose load
General purpose panel
Motor control center
Switchboard 

Proposal Maker 
The document cannot be printed 
The document cannot be exported (to a doc, rtf, pdf or html file) 

PsyChart 
Elevation from 9,000 to 11,000 feet 
Dry Bulb temperature from 35 to 100 degrees F 
13 points and processes per chart 

Quote 
Restricted to a selling price of $500 per model quoted
plus an additional $500 for associated material, labor and tax 

Refrig 
Wall heights up to 10 feet 
Wall lengths up to 15 feet 
Roof lengths up to 15 feet 
Roof widths up to 15 feet 
Pounds per unit up to 50 lbs 
Units per period up to 5 
Holding units up to 50 lbs 

Rhvac 
Three rooms 
15' wall lengths 
8' wall heights 
Six trunks & six runouts on Tabular Manual D Ductsize window 
Equipment capacities of 19,000 Btuh on Manual S Performance Data window 

Rhvac Online 
Three rooms 
15' wall lengths 
8' wall heights 
Six trunks & six runouts on Duct Data page 
Equipment capacities of 19,000 Btuh on Manual S Performance Data Page 

Manual J Calculator Online 
Three rooms 
15' wall lengths 
8' wall heights 

Manual S Calculator Online 
Equipment capacities of 19,000 Btuh on Manual S Performance Data Page 

Manual D Ductsize Online 
Six trunks & six runouts on Duct Data page 

Shadow 
Allows two glass types, limited to 2 by 3 feet each 

Short 
Maximum of 6 network devices 
One of each of the following: 
Motor
Capacitor bank
General purpose load
General purpose panel
Motor control center
Switchboard 

SPipe 
Limited to 20 pipe sections 

VDrop 
Maximum of 6 network devices 
One of each of the following: 
Motor
Capacitor bank
General purpose load
General purpose panel
Motor control center
Switchboard 

Vent 
The number of hoods in your system must be no more than
two 
The CFM value for each hood is restricted to 1800 
