Bryant 564A User Manual

installation, start-up

564A

and service instructions

3-PHASE
PACKAGED AIR CONDITIONERS

NOTE: Read the entire instruction manual before starting the
installation.

Index Page

SAFETY CONSIDERATIONS .....................................................1

RULES FOR SAFE INSTALLATION

AND OPERATION........................................................................1

GENERAL ................................................................................1

RECEIVING AND INSTALLATION.......................................5-8

Check Equipment ...........................................................................5

IDENTIFY UNIT......................................................................5

INSPECT SHIPMENT .............................................................5

Provide Unit Support .....................................................................5

SLAB MOUNT.........................................................................5

Provide Clearances.........................................................................5

Place Unit .......................................................................................5

Select and Install Ductwork .......................................................5-6

INSTALL FLANGES FOR DUCTWORK

CONNECTIONS (060 Only) ...................................................5

CONVERTING HORIZONTAL DISCHARGE UNITS

TO DOWNFLOW (Vertical) DISCHARGE ...........................6

Provide for Condensate Disposal ..................................................6

Install Electrical Connections.....................................................6-8

HIGH-VOLTAGE CONNECTIONS .......................................7

ROUTING POWER LEADS INTO UNIT..............................8

CONNECTING GROUND LEAD TO UNIT GROUND ......8

ROUTING CONTROL POWER WIRES................................8

ACCESSORY ELECTRIC HEAT WIRING...........................8

SPECIAL PROCEDURES FOR 208-V OPERATION...........8

PRE-START-UP .........................................................................8-9

START-UP................................................................................9-14

MAINTENANCE....................................................................14-16

TROUBLESHOOTING ...............................................................17

START-UP CHECKLIST............................................................18

NOTE TO INSTALLER — Before the installation, READ THESE
INSTRUCTIONS CAREFULLY AND COMPLETELY. Also,
make sure the User’s Manual and Replacement Guide are left with
the unit after installation.

SAFETY CONSIDERATIONS

Installation and servicing of air-conditioning equipment can be
hazardous due to system pressure and electrical components. Only
trained and qualified workers should install, repair, or service
air-conditioning equipment.

Untrained workers can perform basic maintenance functions of
cleaning coils and filters. All other operations should be performed
by trained service people. When working on air-conditioning
equipment, pay attention to precautions in the literature, tags and
labels attached to the unit, and other safety precautions that may
apply.

Follow all safety codes. Wear safety glasses and work gloves. Use
quenching cloth for unbrazing operations. Have fire extinguisher
available for all brazing operations.

036-060

Cancels: New II 564A-36-1

1-06

C00001

Fig. 1—Unit 564A (Size 036 Shown)

WARNING: Before performing service or maintenance

operations on system, turn off main power to unit. Turn
off accessory heater power switch if applicable. Electrical
shock can cause serious injury or death.

RULES FOR SAFE INSTALLATION AND OPERATION

Recognize safety information. This is the safety-alert symbol
When you see this symbol 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 a hazard
which could result in personal injury or death. CAUTION is used
to identify unsafe practices which would 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.

These instructions cover minimum requirements and conform to
existing national standards and safety codes. In some instances,
these instructions exceed certain local codes and ordinances,
especially those that may not have kept up with changing residen­tial construction practices. We require these instructions as a
minimum for a safe installation.

A. General

564A cooling units are fully self-contained and designed for
outdoor installation. See Fig. 1. As shown in Fig. 2-4, units are
shipped in a horizontal-discharge configuration for installation on
a ground-level slab. All units can be field-converted to downflow
discharge configurations for rooftop applications with a field­supplied plenum.

.

—1—

REQUIRED CLEARANCE TO COMBUSTIBLE MATL.

TOP OF UNIT.........................................................................................0

DUCT SIDE OF UNIT.............................................................................0

SIDE OPPOSITE DUCTS ......................................................................0

BOTTOM OF UNIT.................................................................................0

NEC. REQUIRED CLEARANCES.

BETWEEN UNITS, POWER ENTRY SIDE....................................42.00 [1066.8]

UNIT AND UNGROUNDED SURFACES, POWER ENTRY SIDE .36.00 [914.0]
UNIT AND BLOCK OR CONCRETE WALLS AND OTHER

GROUNDED SURFACES, POWER ENTRY SIDE.........................42.00 [1066.8]

REQUIRED CLEARANCE FOR OPERATION AND SERVICING

CONDENSER . COIL ACCESS SIDE..............................................30.00 [762.0]

POWER ENTRY SIDE....................................................................30.00 [762.0]

(EXCEPT FOR NEC REQUIREMENTS)

UNIT TOP.......................................................................................48.00 [1219.2]

SIDE OPPOSITE DUCTS ..............................................................30.00 [762.0]

LEGEND

NEC – National Electrical Code

NOTES:

1. Clearances must be maintained to prevent recirculation of air from outdoor­fan discharge, with the exception of the condenser coil (36.00 in [914.0 mm]. A
removable fence or barricade requires no clearance.

2. Dimensions are in inches. Dimensions in [ ] are in millimeters.

INCHES [mm]

INCHES [mm]

INCHES [mm]

Fig. 2—Base Unit Dimensions 564A036

UNIT ELECTRICAL CHARACTERISTICS

UNIT WEIGHT

lb kg X Y Z

036 208/230-3-60 250 114 355.6 (14.00) 508.0 (20.00) 241.3 (9.50)

CENTER OF GRAVITY

IN. [MM]

—2—

C00002

REQUIRED CLEARANCE TO COMBUSTIBLE MATL.

TOP OF UNIT.........................................................................................0

DUCT SIDE OF UNIT.............................................................................0

SIDE OPPOSITE DUCTS ......................................................................0

BOTTOM OF UNIT.................................................................................0

NEC. REQUIRED CLEARANCES.

BETWEEN UNITS, POWER ENTRY SIDE....................................42.00 [1066.8]

UNIT AND UNGROUNDED SURFACES, POWER ENTRY SIDE .36.00 [914.0]
UNIT AND BLOCK OR CONCRETE WALLS AND OTHER

GROUNDED SURFACES, POWER ENTRY SIDE.........................42.00 [1066.8]

REQUIRED CLEARANCE FOR OPERATION AND SERVICING

CONDENSER . COIL ACCESS SIDE.............................................. 30.00 [762.0]

POWER ENTRY SIDE....................................................................30.00 [762.0]

(EXCEPT FOR NEC REQUIREMENTS)

UNIT TOP.......................................................................................48.00 [1219.2]

SIDE OPPOSITE DUCTS ..............................................................30.00 [762.0]

LEGEND

NEC – National Electrical Code

NOTES:

1. Clearances must be maintained to prevent recirculation of air from outdoor­fan discharge, with the exception of the condenser coil (36.00 in [914.0 mm]. A
removable fence or barricade requires no clearance.

2. Dimensions are in inches. Dimensions in [ ] are in millimeters.

INCHES [mm]

INCHES [mm]

INCHES [mm]

Fig. 3—Base Unit Dimensions, 564A042,048

UNIT ELECTRICAL CHARACTERISTICS

UNIT WEIGHT

lb kg X Y Z
042 208/230-3-60 297 135 355.6 (14.00) 508.0 (20.00) 304.8 (12.00)
048 208/230-3-60 310 141 355.6 (14.00) 508.0 (20.00) 304.8 (12.00)

CENTER OF GRAVITY

IN. [MM]

—3—

C00003

REQUIRED CLEARANCE TO COMBUSTIBLE MATL.

TOP OF UNIT.........................................................................................0

DUCT SIDE OF UNIT.............................................................................0

SIDE OPPOSITE DUCTS ......................................................................0

BOTTOM OF UNIT.................................................................................0

NEC. REQUIRED CLEARANCES.

BETWEEN UNITS, POWER ENTRY SIDE....................................42.00 [1066.8]

UNIT AND UNGROUNDED SURFACES, POWER ENTRY SIDE .36.00 [914.0]
UNIT AND BLOCK OR CONCRETE WALLS AND OTHER

GROUNDED SURFACES, POWER ENTRY SIDE.........................42.00 [1066.8]

REQUIRED CLEARANCE FOR OPERATION AND SERVICING

CONDENSER . COIL ACCESS SIDE..............................................30.00 [762.0]

POWER ENTRY SIDE....................................................................30.00 [762.0]

(EXCEPT FOR NEC REQUIREMENTS)

UNIT TOP.......................................................................................48.00 [1219.2]

SIDE OPPOSITE DUCTS ..............................................................30.00 [762.0]

LEGEND

NEC – National Electrical Code

NOTES:

1. Clearances must be maintained to prevent recirculation of air from outdoor­fan discharge, with the exception of the condenser coil (36.00 in [914.0 mm]. A
removable fence or barricade requires no clearance.

2. Dimensions are in inches. Dimensions in [ ] are in millimeters.

INCHES [mm]

INCHES [mm]

INCHES [mm]

Fig. 4—Base Unit Dimensions, 564A060

UNIT ELECTRICAL CHARACTERISTICS

060 208/230-3-60, 460-3-60 350 159 355.6 (14.00) 508.0 (20.00) 355.6 (14.00)

UNIT WEIGHT

lb kg X Y Z

CENTER OF GRAVITY

IN. [MM]

—4—

C00004

RECEIVING AND INSTALLATION

I. CHECK EQUIPMENT

A. Identify Unit

The unit model number and serial number are stamped on the unit
identification plate. Check this information against shipping pa­pers.

B. Inspect Shipment

Inspect for shipping damage while unit is still on shipping pallet.
If unit appears to be damaged or is torn loose from its securing
points, have it examined by transportation inspectors before
removal. Forward claim papers directly to transportation company.
Manufacturer is not responsible for any damage incurred in transit.

Check all items against shipping list. Immediately notify the
nearest Carrier Air Conditioning office if any item is missing.

To prevent loss or damage, leave all parts in original packages
until installation.

II. PROVIDE UNIT SUPPORT

A. Slab Mount

Place the unit on a rigid, level surface, suitable to support the unit
weight. The flat surface should extend approximately 2-in. beyond
the unit casing on the 2 sides. The duct connection side and
condensate drain connection sides should be flush with the edge of
the flat surface. A concrete pad or a suitable fiberglass mounting
pad is recommended.

A 6-in. wide gravel apron should be used around the flat surface to
prevent airflow blockage by grass or shrubs. Do not secure the unit
to the flat surface except where required by local codes.

The unit should be level to within 1/4 inch. This is necessary for
the unit drain to function properly.

III. PROVIDE CLEARANCES

The required minimum service clearances and clearances to
combustibles are shown in Fig. 2-4. Adequate ventilation and
condenser air must be provided.

The condenser fan pulls air through the condenser coil and
discharges it through the fan on the top cover. Be sure that the fan
discharge does not recirculate to the condenser coil. Do not locate
the unit in either a corner or under an overhead obstruction. The
minimum clearance under a partial overhang (such as a normal
house overhang) is 48 in. above the unit top. The maximum
horizontal extension of a partial overhang must not exceed 48
inches.

CAUTION: Do not restrict condenser airflow. An air
restriction at either the outdoor-air inlet or the fan
discharge can be harmful to compressor life.

Do not place the unit where water, ice, or snow from an overhang
or roof will damage or flood the unit. The unit may be installed on
wood flooring or on Class A, B, or C roof covering materials.

IV. PLACE UNIT

Unit can be moved with the handholds provided in the unit
basepan. Refer to Table 1 for operating weights. Use extreme

caution to prevent damage when moving the unit. Unit must
remain in an upright position during all moving operations. The

unit must be level for proper condensate drainage; the ground-level
pad must be level before setting the unit in place. When a
field-fabricated support is used, be sure that the support is level
and that it properly supports the unit.

V. SELECT AND INSTALL DUCTWORK

The design and installation of the duct system must be in
accordance with:

• the standards of the NFPA (National Fire Protection Associa­tion) for installation of nonresidence-type air conditioning and
ventilating systems;

• NFPA90Aor residence-type, NFPA90B; and/or local codes and
residence-type, NFPA 90B;

• and/or local codes and ordinances.

Select and size ductwork, supply-air registers and return-air grilles
according to ASHRAE (American Society of Heating, Refrigera­tion, and Air Conditioning Engineers) recommendations.

Use the duct flanges provided on the supply- and return-air
openings on the side of the unit. See Fig. 2-4 for connection sizes
and locations. The 14-in. round duct collars (size 024-048 units)
are shipped inside the unit attached to the indoor blower. They are
field-installed and must be removed from the indoor cavity prior to
start-up, even if they are not used for installation.

A. INSTALL FLANGES FOR DUCTWORK CONNEC­TIONS (060 Only)

The 564A060 units are shipped with flanges which must be
field-installed on the unit.

To install unit flanges:

1. Five pieces of flange are shipped on the return-air opening
of the unit. Remove the flanges from the shipping position.
See Fig. 5. Screws are field-supplied.

2. One piece of flange is used as it is shipped (straight). Bend
the other 4 pieces at right angles.

3. Install the straight flange on the right side of the return-air
opening in holes provided. See Fig. 6. Flanges should stick
out from unit to allow for connection of ductwork.

4. Install 2 hand-formed flanges onto return air opening in
holes provided to form a rectangle around the return air
opening.

5. Install remaining 2 hand-formed flanges around discharge
air opening in holes provided.

6. Ductwork can now be attached to flanges.

When designing and installing ductwork, consider the following:

CAUTION: When connecting ductwork to units, do not
drill deeper than 3/4 inch in shaded area shown in Fig. 7
or coil may be damaged.

• All units should have field-supplied filters installed in the
return-air side of the unit. Recommended sizes for filters are
shown in Table 1.

• Avoid abrupt duct size increases and reductions. Abrupt change
in duct size adversely affects air performance.
Use flexible connectors between ductwork and unit to prevent
transmission of vibration. Use suitable gaskets to ensure
weathertight and airtight seal.

• Size ductwork for cooling air quantity (cfm). The minimum air
quantity for proper electric heater operation is listed in Table 2.
Heater limit switches may trip at air quantities below those
recommended.

• Insulate and weatherproof all external ductwork. Insulate and
cover with a vapor barrier all ductwork passing through
conditioned spaces. Follow latest Sheet Metal and Air Condi­tioning Contractors National Association (SMACNA) and Air
Conditioning Contractors Association (ACCA) minimum in­stallation standards for residential heating and air conditioning
systems.

• Secure all ducts to building structure. Flash, weatherproof, and
vibration-isolate duct openings in wall or roof according to
good construction practices.

Fig. 8 shows a typical duct system with 564A unit installed.

—5—

FIVE PIECES OF DUCT

19.17″ 3.92″

FLANGE ATTACHED
HERE FOR SHIPMENT

Fig. 5—Shipping Location of Duct Flanges

(Size 060 Only)

HAND
FORM

C00005

B. CONVERTING HORIZONTAL DISCHARGE UNITS TO
DOWNFLOW (Vertical) DISCHARGE

WARNING: Before performing service or maintenance

operations on system, turn off main power to unit. Turn
off accessory heater power switch if applicable. Electrical
shock can cause serious injury or death.

Units are dedicated side supply products. They are not convertible
to vertical air supply. A field-supplied plenum must be used to
convert to vertical air discharge.

VI. PROVIDE FOR CONDENSATE DISPOSAL

NOTE: Be sure that condensate-water disposal methods comply

with local codes, restrictions, and practices.

Unit removes condensate through a 1-3/64-in. ID hole which is
located at the end of the unit. See Fig. 2-4 for location of
condensate connection.

Condensate water can be drained directly onto the roof in rooftop
installations (where permitted) or onto a gravel apron in ground­level installations. Install a field-supplied condensate trap at end of
condensate connection to ensure proper drainage. Make sure that
the outlet of the trap is at least 1 in. lower than the drain-pan
condensate connection to prevent the pan from overflowing. See
Fig. 9A and 9B. Prime the trap with water. When using a gravel
apron, make sure it slopes away from the unit.

If the installation requires draining the condensate water away
from the unit, install a 2-in. trap using a 3/4-in. OD tube or pipe.
See Fig. 9A and 9B. Make sure that the outlet of the trap is at least
1 in. lower than the unit drain-pan condensate connection to
prevent the pan from overflowing. Prime the trap with water.
Connect a drain tube using a minimum of 3/4-in. PVC, 3/4-in.
CPVC, or 3/4-in. copper pipe (all field supplied). Do not undersize
the tube. Pitch the drain tube downward at a slope of at least 1 in.
for every 10 ft of horizontal run. Be sure to check the drain tube
for leaks. Prime trap at the beginning of the cooling season
start-up. Allowable glues for condensate trap connection are:
Standard ABS, CPVC, or PVC cement.

HAND FORM

STRAIGHT PIECE

Fig. 6—Flanges Installed on 564A060 Units

Fig. 7—Area Not to Be Drilled More Than 3/4-in.

C00006

C00007

VII. INSTALL ELECTRICAL CONNECTIONS

WARNING: The unit cabinet must have an uninter-

rupted, unbroken electrical ground to minimize the pos­sibility of personal injury if an electrical fault should
occur. This ground may consist of an electrical wire
connected to the unit ground in the control compartment,
or conduit approved for electrical ground when installed
in accordance with NEC (National Electrical Code),
ANSI (American National Standards Institute)/NFPA
(latest edition) (in Canada, Canadian Electrical Code
CSA C22.1) and local electrical codes. Failure to adhere
to this warning could result in serious injury or death.

—6—