Introduction .............................................................................1
Features & Benefits .................................................................3
Safety Precautions ...................................................................3
1. Intended Application ............................................................3
2. Registrations .......................................................................3
3. Specifications ......................................................................3
4 . Installation ..........................................................................3
4.1 Installation Checklist .....................................................3
4.1A Power Accessibility ................................................3
4.1B Space ....................................................................4
4.1C Low Voltage Wiring ................................................4
4.1D Back-Draft Damper ...............................................4
4.1E Support Structure and Suspension .........................4
4.2 Electrical Requirements ................................................4
4.3 Condensate Removal ....................................................4
4.3A Lifting Condensate ................................................4
4.3B Condensate Pump Kit ............................................4
4.4 Ducting ........................................................................5
4.4A Fresh Air/Supply Air ................................................7
4.4B Ducting for Fresh Air - Option ................................7
4.4C Installation in a Basement or Crawlspace ..............8
4.4D Installation in an Attic ............................................8
4.4E Installation in a Structure with
No Forced Air HVAC System ............................................8
4.4F Ducting for High Efficiency Filtration .......................9
4.5 Compressor Release and Noise Abatement ....................9
4.6 Controls ......................................................................10
5. DEH 3000/DEH 3000R Digital Control ................................11
6. Maintenance ......................................................................12
6.1 Standard Air Filter .......................................................12
6.2 High Efficiency Air Filter ..............................................12
6.3 Optional Fresh Air Intake .............................................12
7. Wiring Diagram .................................................................. 12
8. Optional Parts List ..............................................................13
9. Service Parts List ...............................................................13
10. Service ............................................................................14
10.1 Technical Description ................................................14
10.2 Troubleshooting ........................................................14
10.3 Refrigerant Charging ................................................15
10.4 Compressor/Capacitor Replacement .........................15
10.5 Electric Ventilation Damper .......................................15
10.6 Condensate Pump Kit ...............................................15
Warranty ................................................................................18
TABLE OF CONTENTS
2
Ultra-Aire 90H Installer’s & Owner’s Manual
