Trace 3D Plus
User Guide
 
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90.1 Systems

ASHRAE System 
Fan Configuration 
Return Air Path 
Cooling Coil Location 
Economizer 
Energy Recovery 
Optimum Start 
Supply Air Reset 
Primary 
Secondary 
Over-sized 
Min Stop 
1.     Packaged Terminal Air Conditioner 
Blow Thru 
Room Direct 
Room 
Not Required 
User input, if required 
Yes 
Not Required 
FC Centrifugal CV 
Not Required 
Yes 
N/A 
2.     Packaged Terminal Heat Pump 
Blow Thru 
Room Direct 
Room 
Not Required 
User input, if required 
Yes 
Not Required 
FC Centrifugal CV 
Not Required 
Yes 
N/A 
3.     Packaged Rooftop Air Conditioner 
Draw Thru 
Plenum 
Zone 
User input, if required 
User input, if required 
Yes 
Not Required 
FC Centrifugal CV 
Not Required 
Yes 
N/A 
4.     Packaged Rooftop Heat Pump 
Draw Thru 
Plenum 
Zone 
User input, if required 
User input, if required 
Yes 
Not Required 
FC Centrifugal CV 
Not Required 
Yes 
N/A 
5.     Packaged Rooftop VAV with Reheat 
Draw Thru 
Plenum 
System 
User input, if required 
User input, if required 
Yes 
Yes 
90.1 Min VAV AF Centrifugal 
Not Required 
Yes 
.4 cfm/sq ft 
6.     Packaged Rooftop VAV with Parallel Fan Powered Boxes and Reheat 
Draw Thru 
Plenum 
System 
User input, if required 
User input, if required 
Yes 
Yes 
90.1 Min VAV AF Centrifugal 
Parallel Fan - Powered VAV 
Yes 
30% cooling airflow 
7.     VAV with Reheat 
Draw Thru 
Plenum 
System 
User input, if required 
User input, if required 
Yes 
Yes 
90.1 Min VAV AF Centrifugal 
Not Required 
Yes 
.4 cfm/sq ft 
8.     VAV with Parallel Fan Powered Boxes and Reheat 
Draw Thru 
Plenum 
System 
User input, if required 
User input, if required 
Yes 
Yes 
90.1 Min VAV AF Centrifugal 
Parallel Fan - Powered VAV 
Yes 
30% cooling airflow 
9.     Heating and Ventilation – Gas Fired 
Blow Thru 
Room Direct 
N/A 
Not Required 
Not Required 
Yes 
Not Required 
N/A 
FC Centrifugal CV 
Yes 
N/A 
10.     Heating and Ventilation - Electric 
Blow Thru 
Room Direct 
N/A 
Not Required 
Not Required 
Yes 
Not Required 
N/A 
FC Centrifugal CV 
Yes 
N/A