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2
Important Safety Information ....................................3
General Information ...................................................4
Before You Install this Unit .........................................4
Locating the Air Handler ............................................4
Field Connections for Electrical Power Supply ..........4
Air Ducts ....................................................................4
Unconditioned Spaces ...........................................4
Acoustical Duct Work .............................................4
Air Handler Installation ..............................................5
Packaging Removal ...................................................5
Minimum Clearance Requirements ...........................5
Horizontal Mounting Applications ..............................5
Vertical Mounting Applications ..................................5
Condensate Drain ....................................................5
Connecting Refrigerant Tubing ..................................5
Filter Requirements ..................................................6
Electrical Wiring ..........................................................7
Pre - Electrical Checklist ...........................................7
Line Voltage ...............................................................7
Thermostat Connections ...........................................7
Electrical Wiring with a Duct Heater ..........................7
Unbalanced 3-Phase Supply Voltage ........................8
Grounding..................................................................8
Startup & Adjustments ..............................................8
Pre - Start Checklist ..................................................8
Motor Sheave Adjustment .........................................8
Pulley Alignment ........................................................9
Belt Tensioning ..........................................................9
Blower Adjustments ...................................................9
Unit Maintenance ........................................................9
Figures & Tables .......................................................10
Figure 4. Physical Dimensions - Horizontal ..........10
Figure 5. Physical Dimensions - Vertical ..............11
Table 4. Blower Performance Data .......................12
Electrical Information ...............................................13
Figure 6. B5SM Wiring Diagram ...........................13
Figure 7. Air conditioner T-stat Connections .........14
Figure 8. Heat pump T-stat Connections .............. 15
Figure 9. Maintenance Schedule ......................... 16