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