2 | LV Heat Pump Series
LV Heat Pump Series8 733 944 336 (2016/09) Subject to change without prior notice
CONTENTS
Key to Symbols...................................................................3
Safety Warnings.................................................................3
Model Nomenclature...........................................................4
General Description............................................................5
Moving and Storage............................................................5
Installation.........................................................................5
Step1 Check Job Site....................................................5
Step 2 Check Unit.........................................................5
Step 3 Locate Unit.........................................................6
Step 4 Mount The Unit...................................................7
Hanging Bracket Kit.......................................................8
Step 5 Check Duct System..............................................9
Step 6 Install Condensate Drain.......................................9
Step 7 Pipe Connections..............................................10
Step 8 Wire Power Supply............................................10
Step 9 Wire Field Controls............................................12
Unit Controls ECM-UPM....................................................12
ECM Interface Board...................................................12
Safety Devices and the UPM control..............................12
Safety Features..........................................................13
Freeze Sensor............................................................14
Intelligent Reset..........................................................14
Lockout reset.............................................................14
Pre- Start- Up....................................................................15
Air Coil......................................................................15
Start Up...........................................................................15
Operating Limits........................................................ 15
Environment..............................................................15
Power Supply.............................................................15
Unit Starting Conditions...............................................15
Scroll Compressor Rotation..........................................16
Sequence Of Operation UPM........................................17
Sequence Of Operation ECM.........................................18
Unit Start Up Cooling Mode...........................................19
Unit Start Up Heating Mode...........................................19
Flow Regulation..........................................................19
Antifreeze..................................................................20
Application Considerations...............................................20
Well Water Systems....................................................20
Cooling Tower/Boiler Systems......................................21
Geothermal Closed Loop Systems.................................21
Open Well Water Systems............................................22
Water Quality...................................................................22
Water Quality Table..........................................................23
Condensate Connections..................................................23
Piping..............................................................................24
Options............................................................................24
Extended Range.........................................................24
Units Mounted Non-Fused Disconnect Switch.................22
Hot Gas Reheat..........................................................24
Hot Gas Bypass..........................................................25
Internal 2-Way Water Valve..........................................25
Economizer...............................................................25
Certified Performance Table.............................................26
Fan Motors Options...........................................................27
Permanent Split Capacitor Motors (PSC)........................27
Constant Torque Motors (ECM).....................................28
Constant Airflow Motors (ECM).....................................30
Standard Blower Motor................................................32
Constant Torque ECM Blower Motor..............................33
Constant CFM ECM Blower Motor..................................34
Troubleshooting...............................................................35
Temperature Pressure Table.............................................40
Waterside pressure Drop Table..........................................46
Compressor Characteristics..............................................47
Corner Weights (HZ).........................................................48
Water Coil Volume............................................................48
Wiring Diagrams...............................................................49
Dimensional Drawings......................................................56
Vertical............................................................................56
Horizontal........................................................................57
Maintenance....................................................................59
Information On Decommissioning......................................59
Protecting The Environment..............................................59
Components..............................................................59
Refrigerant................................................................59
Terminology.....................................................................60
Unit Check Out Sheet........................................................61
Notes...............................................................................62
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