Bard Single Package Air Conditioners PA13421-A - Manual (Page 2)

Manual 2100-467
Page 2 of 23
CONTENTS
Getting Other Informations and Publications ........ 3
General Instructions
Important ................................................................ 4
Shipping Damage .................................................... 4
General
................................................................ 4
Field Installed Heater Packages (Optional) ............. 4
Installation
Location ................................................................ 9
Slab Mounting .......................................................... 9
Typical Installations ......................................... 9 & 12
Condensate Drain Trap ......................................... 12
Air Filters .............................................................. 12
Wiring – Main Power ............................................. 13
Wiring – 24V Low Voltage Control Circuit ............. 13
Transformer Taps ................................................... 13
Thermostats ........................................................... 13
Start Up and Operation
General .............................................................. 15
Topping Off System Charge ................................... 15
Safety Practices ..................................................... 15
Start Up Notes ....................................................... 15
Three Phase Scroll Compressor Start Up
Information ............................................................. 16
Sequence of Operation .......................................... 16
Indoor Blower Motor .............................................. 16
Compressor Control Module .......................... 16 & 17
Adjustments ........................................................... 17
Low Ambient Control ............................................. 17
Service and Troubleshooting
Service Hints ......................................................... 18
Pressure Service Ports .......................................... 18
Refrigerant Charge ................................................ 18
Fan Blade Settings ................................................ 18
Suction and Discharge Tube Brazing .................... 19
Troubleshooting ECM Blower Motors ............. 20-21
Pressure Tables ............................................. 22 & 23
Figures
Figure 1 Unit Dimensions ...................................... 8
Figure 2 Slab Mounting at Ground Level ............ 10
Figure 3 Airflow and Service Access
Clearances ............................................ 10
Figure 4 Elevated Mounting Platform ................... 11
Figure 5 Condensate Drain Trap ......................... 12
Figure 6 Low Voltage Wiring ............................... 14
Figure 7 Low Ambient Control Wiring ................. 17
Figure 8 Fan Blade Setting ................................. 18
Figure 9 Brazing Diagram ................................... 19
Figure 10 Control Disassembly ............................. 21
Figure 11 Winding Test ......................................... 21
Figure 12 Drip Loop .............................................. 21
Tables
Table 1 Rated CFM & ESP .................................. 4
Table 2 Electrical Specifications .......................... 5
Table 3 Opt. Field Installed Heater Packages ..... 6
Table 4 Opt. Field Installed Elec. Heater ............. 7
Table 5 Filter Requirements & Sizes ................. 12
Table 6 Thermostat Wire Size ........................... 13
Table 7 Wall Thermostat and Subbase
Combinations ........................................ 13
Table 8 Refrigerant Charge ............................... 18
Table 9 Fan Blade Setting Dimensions .............. 18
Table 10 Indoor Blower Performance .................. 18
Table 11
Pressure Table ...................................... 22
Table 12 Pressure Table ...................................... 23