Manual 2100-703H
Page
2 of 42
CONTENTS
TABLES
Table 1 Clearance Required for Service Access
and Adequate Condenser Airflow ............. 9
Table 2 Minimum Clearances Required to
Combustible Materials ........................... 9
Table 3 Low Voltage Connections...................... 16
Table 4 Wall Thermostats ................................ 17
Table 5 Humidity Controls ............................... 17
Table 6 CO
2
Controller ..................................... 17
Table 7 Thermostat Wire Size ........................... 17
Table 8 Troubleshooting .................................. 25
Table 9 Temperature vs. Resistance .................. 26
Table 10 Fan Blade Dimension .......................... 29
Table 11A Cooling Pressure ................................. 30
Table 11B Heating Pressure ................................. 30
Table 12 Cooling Pressure – Balanced Climate
Airflow ............................................... 31
Table 13 Electrical Specifications ...................... 32
Table 14 Recommended Airflow ......................... 33
Table 15 Blower Speeds for Unit Operational
Modes ................................................ 34
Table 16 Indoor Blower Performance .................. 37
Table 17 Maximum ESP of Operation –
Electric Heat Only .............................. 38
Table 18 Electric Heat ...................................... 38
Table 19 Optional Accessories ........................... 39
Table 20 Vent and Control Options ..................... 40
Getting Other Information and Publications .... 3
Wall Mount General Information ......................... 4
Heat Pump Wall Mount Model Nomenclature .......... 4
Shipping Damage ................................................. 4
General ............................................................... 4
Duct Work ........................................................... 4
Filters ................................................................. 5
Fresh Air Intake ................................................... 5
Installation
............................................................... 6
Basic Installation Design and Application Planning .. 6
Wall Construction ............................................. 6
Outdoor Area Inspection .................................... 6
Condensate Water Drainage ............................... 6
Indoor Ducted and Non-Ducted Applications ........... 6
Indoor Supply Airflow ........................................ 6
Indoor Return Airflow ........................................ 6
Ducted Applications ......................................... 7
Free Blow Applications...................................... 7
Thermostat or Indoor Temperature Sensor
Placement ....................................................... 7
Unit Installation ................................................... 8
Materials/Tool List ............................................ 8
Wall Preparation ............................................... 8
Wall Mount Installation to Wall Surface .............. 8
Wiring – Main Power ........................................... 15
Wiring – Low Voltage ........................................... 15
Low Voltage Connections ................................. 15
Unit Shutdown Feature ................................... 15
Balanced Climate
TM
Feature ............................. 15
Dehumidification Feature ................................ 16
Ventilation Features ........................................ 16
Low Ambient Control (LAC) ............................. 16
Outdoor Temperature Switch and Freeze
Protection Thermostat ................................. 16
Alarm Relay Feature ....................................... 16
Dirty Filter Switch Indicator (DFS).................... 16
Start Up ................................................................... 20
General ......................................................... 20
Topping Off System Charge ................................. 20
Safety Practices ................................................ 20
Important Installer Note ..................................... 20
High and Low Pressure Switch ............................ 21
Three Phase Scroll Compressor Start Up
Information ....................................................... 21
Phase Monitor ................................................... 21
Condenser Fan Operation ................................... 21
Sequence of Operation ....................................... 21
Cooling
......................................................... 21
Heating
......................................................... 21
Dehumidification and Electronic Expansion
Valve (EEV) .................................................... 21
Balanced Climate Mode .................................. 21
Defrost Cycle ..................................................... 22
Low Pressure Switch Bypass Operation ............. 22
High Pressure Switch Operation ....................... 23
Vent Connection Plug .......................................... 23
Pressure Service Ports ........................................ 23
Service Hints ..................................................... 23
Service ..................................................................... 25
Solid State Heat Pump Control Troubleshooting
Procedure ......................................................... 25
Checking Temperature Sensor Outside
Unit Circuit ........................................................ 26
Troubleshooting Nidec SelecTech Series ECM
Motors ............................................................... 27
If the Motor Is Running ................................... 27
If the Motor Is Not Running ............................. 27
Model SelecTech Communication Diagnostics ... 28
Fan Blade Setting Dimensions ............................. 29
Removal of Fan Shroud ....................................... 29
R-410A Refrigerant Charge ................................. 29
Setting Unit Airflow ............................................ 33
Blower Speeds ............................................... 33
Speed Tap 1 – Vent/Blower Only .................. 34
Speed Tap 2 – Balanced Climate ................. 34
Speed Tap 3 – Default LO Cooling &
Heating ............................... 34
Speed Tap 4 – Optional MED Cooling &
Heating ............................... 34
Speed Tap 5 – Optional HI Cooling &
Heating ............................... 34
Dirty Filter Switch ............................................. 35
Dirty Filter Switch Adjustment ......................... 35
