Bard PA13481-A, PA13421-A, PA13481-B, PA13601-A, PA13421-B, PA13601-B Contents

Page 2

CONTENTS

Getting Other Informations and Publications

........ 3

Start Up and Operation

 

 

 

General

15

General Instructions

 

Topping Off System Charge

15

Important

4

Safety Practices

15

Shipping Damage

4

Start Up Notes

15

General

4

Three Phase Scroll Compressor Start Up

 

Field Installed Heater Packages (Optional)

4

Information

16

 

 

Sequence of Operation

16

Installation

 

Indoor Blower Motor

16

Location

9

Compressor Control Module

16 & 17

Slab Mounting

9

Adjustments

17

Typical Installations

9 & 12

Low Ambient Control

17

Condensate Drain Trap

12

 

 

Air Filters

12

Service and Troubleshooting

 

Wiring – Main Power

13

Service Hints

18

Wiring – 24V Low Voltage Control Circuit

13

Pressure Service Ports

18

Transformer Taps

13

Refrigerant Charge

18

Thermostats

13

Fan Blade Settings

18

 

 

Suction and Discharge Tube Brazing

19

 

 

Troubleshooting ECM Blower Motors

20-21

 

 

Pressure Tables

22 & 23

Figures

 

 

Tables

 

 

Figure 1

Unit Dimensions

8

Table 1

Rated CFM & ESP

4

Figure 2

Slab Mounting at Ground Level

10

Table 2

Electrical Specifications

5

Figure 3

Airflow and Service Access

 

Table 3

Opt. Field Installed Heater Packages

6

 

Clearances

10

Table 4

Opt. Field Installed Elec. Heater

7

Figure 4

Elevated Mounting Platform

11

Table 5

Filter Requirements & Sizes

12

Figure 5

Condensate Drain Trap

12

Table 6

Thermostat Wire Size

13

Figure 6

Low Voltage Wiring

14

Table 7

Wall Thermostat and Subbase

 

Figure 7

Low Ambient Control Wiring

17

 

Combinations

13

Figure 8

Fan Blade Setting

18

Table 8

Refrigerant Charge

18

Figure 9

Brazing Diagram

19

Table 9

Fan Blade Setting Dimensions

18

Figure 10 Control Disassembly

21

Table 10

Indoor Blower Performance

18

Figure 11

Winding Test

21

Table 11

Pressure Table

22

Figure 12

Drip Loop

21

Table 12

Pressure Table

23

Manual

2100-467

Page

2 of 23

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Contents Bard Manufacturing Company Bryan, OhioContents Getting Other Information and Publications For More INFORMATION, Contact These PublishersShipping Damage Field Installed Heater Packages OptionalGeneral Instructions GeneralElectrical Specifications Hz Circuit aHeater Package Volts Model Phase Optional Field Installed Electric Heater Table Htr. KW & Capacity Circuit BUnit Dimension Chart Dimensions of UnitsLocation InstallationTypical Installations GeneralAirflow and Service Access Clearances Slab Mounting AT Ground LevelElevated Mounting Platform AS RequiredFilter Requirements & Sizes Condensate Drain TrapAIR Filters Condensate Drain TrapTransformer Taps Wiring Main PowerWiring 24V LOW Voltage Control Circuit ThermostatsLOW Voltage Wiring Unit Control PanelTopping OFF System Charge Safety PracticesStart UP Start UP NotesSequence of Operation Three Phase Scroll Compressor Start UP InformationStart UP and Operation Indoor Blower MotorAdjustable DELAY-ON-MAKE and DELAY-ON-BREAK Timer AdjustmentsAlarm Output LOW Ambient Control WiringPressure Service Ports Service and TroubleshootingService Hints FAN Blade SettingsBrazing Diagram Suction and Discharge Tube BrazingTroubleshooting GE ECM Motors Troubleshooting GE ECM Motors Cont’d Return Air Pressure 100 105 Pressure TableOn Page 23 in Table 115 120 125 ModelReturn Air Pressure 100 105 110 115 120 125 Model

PA13601-B, PA13481-A, PA13601-A, PA13481-B, PA13421-A specifications

Bard is a renowned name in the HVAC (Heating, Ventilation, and Air Conditioning) industry, known for its innovative products that ensure comfort and efficiency in various settings. The models PA13421-B, PA13421-A, PA13481-B, PA13601-A, and PA13481-A are prime examples of Bard's commitment to quality and technology, providing reliable performance and advanced features suitable for both commercial and residential applications.

The PA13421-B and PA13421-A are designed for energy efficiency, boasting high SEER (Seasonal Energy Efficiency Ratio) ratings that significantly reduce energy consumption without sacrificing performance. These units utilize a scroll compressor, which is known for its quiet operation and superior reliability. Additionally, they feature advanced microprocessor control systems that allow for precise temperature regulation and can be easily integrated into building management systems.

The PA13481-B and PA13481-A models are equipped with durable, heavy-gauge cabinets that protect the internal components from environmental factors, ensuring longevity and minimal maintenance. These units also incorporate a high-capacity airflow design, which improves indoor air quality by effectively circulating air throughout the space. The implementation of variable-speed blowers further enhances comfort levels by adjusting airflow based on real-time demand.

The PA13601-A model stands out with its versatility, as it can operate effectively in a wide range of climates. Its design includes a robust refrigerant management system that ensures optimal performance even in extreme temperatures, making it a favorite for users in harsher environments. This model also features a comprehensive diagnostic system that alerts users to potential issues before they escalate, facilitating proactive maintenance.

All these models emphasize sustainability, incorporating environmentally friendly refrigerants that comply with international regulations. Bard's dedication to reducing carbon footprints is evident in these units, which not only perform admirably but also contribute to a greener planet.

In summary, the Bard PA13421-B, PA13421-A, PA13481-B, PA13601-A, and PA13481-A models exemplify cutting-edge technology and superior engineering in the HVAC sector. With their energy-efficient designs, robust construction, and advanced control systems, these HVAC solutions provide reliable comfort for users while being mindful of environmental impact.
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