2 | LV Heat PumpSeries
LV Heat Pump Series8 733 905 683 (2013/04) Subject to change without prior notice
CONTENTS
Model Nomenclature.......................................................... 3
General Description........................................................... 4
Moving and Storage........................................................... 4
Initial Inspection ............................................................... 5
Location............................................................................ 5
Water Quality .................................................................... 5
Installation........................................................................ 6
Duct Flanges ............................................................... 6
Mounting Vertical Units................................................. 7
Mounting Horizontal Units............................................. 7
Converting Horizontal Supply Air Configuration................ 8
Condensate Connections .............................................. 8
Duct System ............................................................... 8
Piping ........................................................................ 9
Electrical - High Voltage ................................................ 9
Electrical - Low Voltage............................................... 10
Units Controls - UPM........................................................ 11
ECM Interface Board .................................................. 11
Sequence of Operation............................................... 13
General .................................................................... 14
Cooling and Heating Modes ......................................... 14
UPM Safety Features.................................................. 14
Options........................................................................... 17
Extended Range Option .............................................. 17
Unit Mounted Non-Fused Disconnect Switch.................. 17
Hot Gas Reheat ......................................................... 18
Hot Gas Bypass ......................................................... 18
Internal 2-Way Water Valve ......................................... 18
Economizer .............................................................. 19
LED Annunciator........................................................ 19
Flow Proving Switch................................................... 19
DDC Controls ............................................................ 19
Application Considerations .............................................. 20
Boiler/Cooling Tower Systems ..................................... 20
Geothermal Closed Loop Systems................................ 21
Open Well Water Systems ........................................... 22
Certified Performance Table ............................................ 23
Fan Motor Options........................................................... 24
Permanent Split Capacitor Motors (PSC) ...................... 24
Constant Torque Motors (ECM).................................... 26
Constant Airflow Motors (ECM).................................... 28
Standard Blower Motor.................................................... 30
Constant CFM ECM Blower Motor................................. 33
Unit Start Up ................................................................... 34
Maintenance ................................................................... 34
Unit Check Out Sheet ................................................. 35
Customer Data .......................................................... 35
Unit Nameplate Data .................................................. 35
Operating Conditions..................................................35
Auxiliary Heat ............................................................35
Troubleshooting ..............................................................36
Temperature/Pressure Table ............................................41
Waterside Pressure Drop Table.........................................46
Compressor Characteristics .............................................47
Water Coil Volume ...........................................................48
Corner Weights (HZ) ........................................................48
Wiring Diagrams ..............................................................49
Dimensional Drawings......................................................56
Vertical.....................................................................56
Horizontal .................................................................57
Notes ..............................................................................58
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