Bard QA421D Manuals

Manuals and User Guides for Bard QA421D. We have 1 Bard QA421D manual available for free PDF download: Installation Instructions Manual

Bard QA421D Installation Instructions Manual

Bard QA421D Installation Instructions Manual (33 pages)

QTEC SERIES PACKAGED AIR CONDITIONER

Brand: Bard | Category: Air Conditioner | Size: 0 MB

Table of Contents

Air Conditioner
1
Table of Contents
2
Getting Other Information and Publications
3
Installation Instructions
15
Start up
22
Description of Standard Equipment
22
Optional CFM (QA361, QA421, QA481 and QA601 Only)
22
Important Installer Note
22
Phase Monitor
22
Three Phase Scroll Compressor Start up Information
22
Compressor Control Module
23
Adjustments
23
Service Hints
23
Mist Eliminator Service
24
Vent Options
24
Figure 19 Fresh Air Damper Removal
26
Figure 20 QERV Removal
27
Sequence of Operation
28
CRV / QERV Operation
28
Optional Climate Controls Sequence of Operation
28
Pressure Service Ports
28
Figure 21 Air Conditioning Mode Circuit Diagram
29
Figure 22 Dehumidification Mode Circuit Diagram
29
Troubleshooting
31
Troubleshooting Table
31
Table 5 Troubleshooting
31
Figure 23 Fan Blade Setting
32
Fan Blade Setting Dimensions
32
Refrigerant Charge
32
Table 6 Fan Blade Dimensions
32
Table 7 Super Heat at Compressor
32
Table 8 Indoor Blower Performance
32
Pressure Chart
33
Table 9 Cooling Pressure
33

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