Quest Engineering 105 Dual

1-877-420-1330
Quest 105/155/205/ 225 Dual Installation, Operation and Maintenance Instructions
2
www.QuestHydro.com
info@QuestHydro.com
Table of Contents
Safety Precautions .................................................................... 3
1. Intended Application .............................................................4
2. Registrations ........................................................................4
3. Specifications .......................................................................4
4. Installation ........................................................................ 5
4.1 Location ........................................................................ 5
4.2 Electrical Requirements ............................................... 5
4.3 Condensate Removal ...................................................6
4.4 Install Diagram .............................................................. 6
4.5 Ducting ........................................................................ 7
4.5A Supply Duct Kit ................................................ 7
4.5B Return Duct Kit ................................................ 7
5. Controls ........................................................................ 7
5.1 On board dehumidistat ................................................. 7
5.2 External Control ...........................................................8
5.2A Deh 3000R ......................................................8
5.2B Honeywell Remote Humidistat ....................... 9
6. Maintenance ........................................................................ 9
6.1 Standard Air Filter ......................................................... 9
6.2 Impeller Fan Oiling ....................................................... 9
7. Service ........................................................................ 9
7.1 Warranty ........................................................................ 9
7.2 Technical description ................................................... 10
7.3 Troubleshooting ........................................................... 10
7.4 Refrigerant Charging ..................................................12
7.5 Impeller Fan Replacement .........................................12
7.6 Compressor/Capacitor Replacement ........................12
7.6A Checking Compressor Motor Circuits ..........12
7.6B Replacing Burned Out Compressor ..............13
7.6C Replacing Compressor-Nonburn Out ...........13
7.7 Remote Controls ..........................................................13
7.7A Humidity Control ............................................ 14
7.7B Programable Ventilation Timer....................... 14
7.8 Defrost Thermostat .................................................... 14
7.9 Electric Ventilation Damper ...................................... 14
7.10 Condensate Pump Kit ................................................15
Wiring Diagram .......................................................................16
Service Parts List .....................................................................17
Optional Parts List ..................................................................17
Warranty .......................................................................18