Rev. 2.3 Aug. 19, 2104
TABLE OF CONTENTS
1. PERFORMANCE RATINGS & PHYSICAL DATA ..................................................................................................... 3
2. HOW THE NU-AIR SYSTEM WORKS ......................................................................................................................... 6
3. INSTALLATION ............................................................................................................................................................. 6
3.1. Installer's Responsibilities ........................................................................................................................ 6
3.2. Installation System Options .................................................................................................................... 7
3.3. Ducting to The Outside ............................................................................................................................. 9
3.4. Mounting & Noise Control ..................................................................................................................... 10
3.5. Ductwork ................................................................................................................................................. 10
3.6. Drain Connections .................................................................................................................................. 10
3.7. Balancing the System: High and Low Speed ........................................................................................ 12
4. CONTROLS ................................................................................................................................................................... 13
4.1. Main Board Features .............................................................................................................................. 14
4.2. ES Series Controls (12 VDC) ................................................................................................................. 15
4.3. Windsor Series Controls & Other 24 V Control Options ................................................................... 17
4.4. Furnace Interlock .................................................................................................................................... 18
5. START-UP ..................................................................................................................................................................... 18
6. OPERATING HINTS.................................................................................................................................................... 18
7. MAINTENANCE .......................................................................................................................................................... 19
7.5. Filters ....................................................................................................................................................... 19
7.6. Fans .......................................................................................................................................................... 19
7.7. Condensate Drain.................................................................................................................................... 19
7.8. Heat/Energy Recovery Core .................................................................................................................. 19
7.9. Exterior Hoods ........................................................................................................................................ 19
7.10. Grills & Duct Work ........................................................................................................................... 19
8. ANNUAL SERVICING: ............................................................................................................................................... 19
9. TROUBLE SHOOTING ............................................................................................................................................... 20
10. ELECTRICAL SCHEMATICS .................................................................................................................................... 21
10.11. ES Series Wiring Diagrams............................................................................................................... 21
10.12. Altering Furnace Interlock Settings ................................................................................................. 22
10.13. Unit Control Board: Status LEDs & Remote Control Connections .............................................. 23
10.14. ES Series Control Wiring .................................................................................................................. 23
10.15. DSTAT-1 Control Wiring ................................................................................................................. 24
10.16. WIN-1 Control Wiring ...................................................................................................................... 24
10.17. WIN-20 Control Wiring .................................................................................................................... 25
10.18. Remote On/Off (Two-Wire) Switching ............................................................................................ 25
11. WARRANTIES .............................................................................................................................................................. 26
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