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Manual 2100-769A
Page
2 of 50
CONTENTS
Safety Instructions ................................................. 4
General Information ............................................. 10
Shipping Damage ............................................... 10
Additional Publications ....................................... 10
Heat Pump Wall Mount Model Nomenclature ........ 11
Duct Work ......................................................... 12
Filters ............................................................... 12
Filter Removal/Installation ............................... 12
Switching Filter Sizes ..................................... 13
Fresh Air Intake ................................................. 14
Installation ............................................................. 15
Basic Installation Design and Application Planning 15
Wall Construction ........................................... 15
Outdoor Area Inspection .................................. 15
Condensate Water Drainage ............................. 15
Indoor Ducted and Non-Ducted Applications ......... 15
Indoor Supply Airflow ...................................... 15
Indoor Return Airflow ...................................... 15
Ducted Applications ....................................... 16
Free Blow Applications.................................... 16
Thermostat or Indoor Temperature Sensor
Placement ..................................................... 16
Unit Installation ................................................. 16
Materials/Tool List .......................................... 17
Wall Preparation ............................................. 17
Wall Mount Installation to Wall Surface ............ 17
Wiring – Main Power ........................................... 24
High Voltage Connections ................................ 24
Wiring – Low Voltage ........................................... 25
Low Voltage Connections ................................. 25
Unit Shutdown Feature ................................... 25
Ventilation Features ........................................ 25
Low Ambient Control ...................................... 25
Freeze Protection Thermostat ...................... 25
Alarm Relay Feature ....................................... 25
Dirty Filter Switch Indicator (DFS).................... 25
Start Up ................................................................... 29
General ............................................................. 29
Topping Off System Charge ................................. 29
Safety Practices ................................................. 29
Important Installer Note ...................................... 29
High Pressure Switch .......................................... 29
Three Phase Scroll Compressor Start Up
Information ........................................................ 29
Phase Monitor .................................................... 30
Condenser Fan Operation .................................... 30
Service Hints ..................................................... 30
Sequence of Operation ........................................ 30
Cooling Stage 1 .............................................. 30
Cooling Stage 2 .............................................. 30
Heating Stage 1 ............................................. 30
Heating Stage 2 ............................................. 31
Heating Stage 2 & Electric Heat (Up to 10KW) ...31
Emergency Heat ............................................. 31
Low Ambient Conditions.................................. 31
Defrost Cycle ..................................................... 31
Low Pressure Switch Bypass Operation ............. 32
High Pressure Switch Operation ....................... 33
Vent Connection Plug .......................................... 33
Pressure Service Ports ........................................ 33
Service ..................................................................... 34
Solid State Heat Pump Control Troubleshooting
Procedure ......................................................... 34
Checking Temperature Sensor Outside Unit
Circuit ............................................................... 35
Troubleshooting ECM
TM
Indoor Blower Motors ........ 36
Replacing ECM Control Module ........................ 37
Fan Blade Setting Dimensions ............................. 39
R-410A Refrigerant Charge ................................. 39
Condenser Coil Cleaning Access ........................... 39
Important Cleaning Note ..................................... 39
Unit Airflow ....................................................... 44
Dirty Filter Switch .............................................. 44
Dirty Filter Switch Adjustment ......................... 45
FIGURES
Figure 1 Front Control Panel Cover .................... 12
Figure 2 Removing Left Filter ............................ 12
Figure 3 Removing Second Filter ....................... 13
Figure 4 Filter Tabs in Up Position ..................... 13
Figure 5 Bend FIlter Tabs Down ......................... 13
Figure 6 Remove Four Screws ........................... 13
Figure 7 Re-Install Filter Support Brackets into
Lower Slots ........................................ 13
Figure 8 Re-Install Screws and Bend Tabs Up ..... 13
Figure 9 Install Right 2" Filter ........................... 14
Figure 10 Install Left 2" Filter ............................. 14
Figure 11 Fresh Air Damper ................................ 14
Figure 12 Vent Installation/Removal Clearance
Required ............................................ 18
Figure 13 Unit Dimensions ................................. 19
Figure 14 Mounting Instructions.......................... 20
Figure 15 Electric Heat Clearance ....................... 21
Figure 16 Wall Mounting Instructions .................. 22
Figure 17 Wall Mounting Instructions .................. 22
Figure 18 Common Wall Mounting Installations .... 23
Figure 19 High Voltage Connections .................... 24
Figure 20 Thermostat Connections ...................... 27
Figure 21 Thermostat Connections ...................... 28
Figure 22 Defrost Control Board ............................32
Figure 23 Control Disassembly ..............................37
Figure 24 Winding Test .........................................37
Figure 25 Drip Loop ........................................... 37
Figure 26 Control Connector Motor Half ............... 38
Figure 27 Fan Blade Setting ............................... 39
Figure 28 Condenser Coil Access Removal ........... 39
Figure 29 Dirty Filter Switch and Dirty Filter
Indicator Light/Reset Switch ................ 44
Figure 30 Adjusting Filter Switch ........................ 45