Manual 2100-654C
Page
2 of 34
CONTENTS
Figures
Figure 1 Fresh Air Damper .................................. 5
Figure 2 Unit Dimensions ................................... 7
Figure 3A Mounting Instructions – W18H, W24H .... 8
Figure 3B Mounting Instructions – W30H, W36H .... 9
Figure 3C Mounting Instructions – W42H, W48H .. 10
Figure 3D Mounting Instructions – W60H ............. 11
Figure 4 Electric Heat Clearance ....................... 12
Figure 5 Wall Mounting Instructions .................. 13
Figure 6 Wall Mounting Instructions .................. 13
Figure 7 Common Wall Mounting Installations .... 14
Figure 8 Programmable Thermostat Connections . 17
Figure 9 Non-Programmable Thermostat
Connections ....................................... 18
Figure 10 Defrost Control Board .......................... 23
Figure 11 Motor Connections .............................. 26
Figure 12 Motor Connections .............................. 27
Figure 13 Fan Blade Setting ............................... 28
Tables
Table 1 Wall Thermostats ................................ 16
Table 2 Humidity Controls ............................... 16
Table 3 CO
2
Controller ..................................... 16
Table 4 Thermostat Wire Size ........................... 16
Table 5 Troubleshooting .................................. 24
Temperature vs. Resistance .................. 25
Table 6 Fan Blade Dimension .......................... 28
Table 7A Cooling Pressure ................................. 29
Table 7B Heating Pressure ................................. 29
Table 8 Electrical Specifications ...................... 30
Table 9 Recommended Airflow ......................... 31
Table 10 Indoor Blower Performance .................. 31
Table 11 Maximum ESP of Operation
Electric Heat Only Tables ..................... 32
Table 12 Electric Heat ...................................... 32
Table 13 Optional Accessories ........................... 33
Table 14 Vent and Control Options ..................... 34
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
Condensate Drain ................................................ 5
Installation
...............................................................6
Wall Mounting Information .................................... 6
Mounting the Unit ................................................ 6
Clearances Required ............................................. 6
Minimum Clearances ............................................ 6
Wiring – Main Power ........................................... 15
Wiring – Low Voltage Wiring ................................. 15
Start Up ................................................................... 19
General ............................................................. 19
Topping Off System Charge ................................. 19
Safety Practices ................................................. 19
Important Installer Note ...................................... 20
High and Low Pressure Switch ............................. 20
Three Phase Scroll Compressor Start Up
Information ........................................................ 20
Phase Monitor .................................................... 20
Condenser Fan Operation .................................... 20
Service Hints ..................................................... 20
Vent Connection Plug .......................................... 20
Sequence of Operation ........................................ 21
Pressure Service Ports ........................................ 21
Defrost Cycle ..................................................... 21
Service ..................................................................... 24
Solid State Heat Pump Control Troubleshooting
Procedure ......................................................... 24
Checking Temperature Sensor Outside
Unit Circuit ........................................................ 25
Troubleshooting Nidec SelecTech Series ECM
Motors ............................................................... 26
Fan Blade Setting Dimensions ............................. 28
Removal of Fan Shroud ....................................... 28
R-410A Refrigerant Charge ................................. 28
