Bryant 524J Installation, Start-Up And Service Instructions Manual

524J
PACKAGED AIR- - HANDLING UNITS, 60 Hz
R
WITH PURON (R- - 410A) REFRIGERANT
SIZES 25, 28, 30
TABLE OF CONTENTS
SAFETY CONSIDERATIONS
PRE- - INSTALLATION . . . . . . . . . . . . . . . . . . . . . . . . .
Moving and Storage . . . . . . . . . . . . . . . . . . . . . . . . . .
Rigging . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
INSTALLATION . . . . . . . . . . . . . . . . . . . . . . . . . .
General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Uncrating . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Accessories . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Unit Positioning . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Unit Isolation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Refrigerant Piping Access
Refrigerant Piping . . . . . . . . . . . . . . . . . . . . . . . . . .
Condensate Drain . . . . . . . . . . . . . . . . . . . . . . . . . . .
Fan Motors and Drives . . . . . . . . . . . . . . . . . . . . . . .
Power Supply and Wiring
Connecting Ductwork . . . . . . . . . . . . . . . . . . . . . . .
Return- - Air Filters . . . . . . . . . . . . . . . . . . . . . . . . . .
START- - UP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
SERVICE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Panels . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Fan Motor Lubrication . . . . . . . . . . . . . . . . . . . . . . .
Fan Shaft Bearings . . . . . . . . . . . . . . . . . . . . . . . . . .
Centering Fan Wheel . . . . . . . . . . . . . . . . . . . . . . . .
Fan Shaft Position Adjustment
Individual Fan Wheel Adjustment
Fan Belts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Fan Rotation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Fan Pulley Alignment . . . . . . . . . . . . . . . . . . . . . . .
Pulley and Drive Adjustment
Condensate Drains . . . . . . . . . . . . . . . . . . . . . . . . . .
Return- - Air Filters . . . . . . . . . . . . . . . . . . . . . . . . . .
Installation, Start- -Up
and Service Instructions
. . . . . . . . . . . . . . . . . . .
2–18
11
. . . . . . . . . . . . . . . . . . . . 11
11
14
15
. . . . . . . . . . . . . . . . . . . . 15
17
17
19
19–32
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20
20
20
. . . . . . . . . . . . . . . . 20
. . . . . . . . . . . . . . 21
21
21
21
. . . . . . . . . . . . . . . . . . 21
21
21
Coil Removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Cleaning Cooling Coil
1
Cleaning Insulation
2
Replacing Filters
2
START- - UP CHECKLIST
2
SAFETY CONSIDERATIONS
2
Improper installation, adjustment, alteration, service,
2
maintenance, or use can cause explosion, fire, electrical
2
shock or other conditions which may cause personal
injury or property damage. Consult a qualified installer,
9
service agency, or your distributor or branch for
information or assistance. The qualified installer or
agency must use factory- - authorized kits or accessories
when modifying this product. Refer to the individual
instructions package
Follow all safety codes. Wear safety glasses and work
gloves. Use quenching cloths for brazing operations and
have a fire extinguisher available. Read these instructions
thoroughly and follow all warnings or cautions attached to
the unit. Consult local building codes and appropriate
national electrical codes (in USA, ANSI/NFPA70,
National Electrical Code (NEC); in Canada, CSA C22.1)
for special requirements.
It is important to recognize safety information. This is the
safety- - alert symbol
unit and in instructions or manuals, be alert to the
potential for personal injury.
Understand the signal words DANGER, WARNING,
CAUTION, and NOTE. These words are used with the
safety- - alert symbol. DANGER identifies the most serious
hazards which will result in severe personal injury or
death. WARNING signifies hazards which could result in
personal injury or death. CAUTION is used to identify
unsafe practices, which may result in minor personal
injury or product and property damage. NOTE is used to
highlight suggestions which will result in enhanced
installation, reliability, or operation.
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. . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . .
. When you see this symbol on the
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35- - 36