Installation Guide

3
TABLE OF CONTENTS
1. S ERVICE PARTS ...............................................................................................................................................................4-5
2. AIR DISTRIBUTION ...............................................................................................................................................................6
3. I
NSTALLATION .................................................................................................................................................................6-12
3.1 INSPECT THE CONTENT OF THE BOX ............................................................................................................................................... 6
3.2 L
OCATING THE UNIT ..................................................................................................................................................................6-7
3.3 PLANNING OF THE DUCTWORK ....................................................................................................................................................... 8
3.4 DUCT SIZE ................................................................................................................................................................................ 8
3.5 INSTALLING THE DUCTWORK AND REGISTERS ............................................................................................................................... 8-10
3.6 CONNECTING THE DUCTS TO THE UNIT ..........................................................................................................................................11
3.7 INSTALLING TWO EXTERIOR HOODS .............................................................................................................................................. 12
3.8 CONNECTING THE DRAIN ............................................................................................................................................................ 12
4. CONTROLS ..................................................................................................................................................................13-16
4.1 UNITS BOOTING SEQUENCE ........................................................................................................................................................ 13
4.2 WALL CONTROL(S) ELECTRICAL CONNECTION ........................................................................................................................... 13-15
4.3 SETTING UNIT OPERATION IN THE REMAINING 40 MINUTES ON 20 MIN/H MODE AND SETTING UNIT DEFROST CYCLE TYPE
USING VT9W MAIN WALL CONTROL ............................................................................................................................................ 16
5. ELECTRICAL CONNECTION TO THE FURNACE ..........................................................................................................................17
6. WIRING DIAGRAM ..............................................................................................................................................................18
7. B ALANCING THE UNIT ....................................................................................................................................................19-24
7.1 WHAT YOU NEED TO BALANCE THE UNIT ...................................................................................................................................... 19
7.2 PRELIMINARY STAGES TO BALANCE THE UNIT.................................................................................................................................. 19
7.3 USING MAGNEHELIC GAUGES ....................................................................................................................................................... 19
7.4 BALANCING CHART AND PRESET SPEEDS TABLE ........................................................................................................................ 19-20
7.5 BALANCING PROCEDURE ........................................................................................................................................................ 21-24
8. TROUBLESHOOTING .......................................................................................................................................................25-27