Bard PH1224, PH1230, PH1236 installation instructions Contents

Contents

Getting Other Informations and Publications	........ 1
General Instructions	3
Important	3
Shipping Damage	3
General	3
Field-Installed Heater Packages (Optional)	3
Installation	5
Location	5
Typical Installations	5
Condensate Drain Trap	8
Air Filters	8
Wiring – Main Power	9
Wiring – 24V Low Voltage Control Circuit	9
Thermostats	10
Thermostat Indicator Lamps	11
Emergency Heat Position	11
Transformer Taps	11
Compressor Cut-Off Thermostat and Outdoor
Thermostat Wiring	11
Start Up and Operation	12
Three Phase Scroll Compressor Start Up
Information	12
Sequence of Operation	12
Defrost Cycle	12
Start Up Notes	12
Service and Troubleshooting	14
Service Hints	14
Pressure Service Ports	14
Refrigerant Charge	14
Fan Blade Settings	14
Solid State Heat Pump Control
Troubleshooting Procedure	14
Troubleshooting Guide	15
Checking Temperature Sensor Check Out	16
Temperature vs. Resistance of
Temperature Sensor Chart	16
Suction and Discharge Tube Brazing	17
Pressure Tables	18
Wiring Diagrams	19 - 21

Figures
Figure 1	Prefabricated Rood Curb
	Specifications	4
Figure 2	Field Fabricated Curbing	4
Figure 3	Elevated Mounting Platforms	6
Figure 4	Airflow and Service Access
	Clearances	6
Figure 5	Roof Top Application	7
Figure 6	Slab Mounting at Ground Level	7
Figure 7	Condensate Drain Trap	8
Figure 8	Low Voltage Wiring	9
Figure 9	Compressor Cut-Off Thermostat
	Wiring (5 and 10 KW)	11
Figure 10	Compressor Cut-Off Thermostat
	Wiring )15 KW ONLY)	11
Figure 11	Heat Pump Control Board	13
Figure 12	Fan Blade Setting Dimensions	14
Figure 13	Brazing Diagram	17
Tables
Table 1	Electrical Data	2
Table 2	Optional Field Installed Heater
	Packages	2
Table 3	Optional Field Installed Heater Table	2
Table 4	Rated CFM and Rated ESP	3
Table 5	Air Filter Area and Size	8
Table 6	Thermostat Wire Size	9
Table 7	Heat Pump Thermostats	10
Table 8	Volts, KW and Phase - Compressor
	Cut-Off Wiring (5 and 10 KW)	11
Table 9	Volts, KW and Phase - Compressor
	Cut-Off Wiring (15 KW ONLY0	11
Table 10	Refrigerant Charge	14
Table 11	Pressure Table - Cooling	18
Table 12	Pressure Table - Heating	18