Bryant 569C User Manual

installation, start-up and
service instructions

COMMERCIAL AIR-COOLED
CONDENSING UNITS

IMPORTANT —READ BEFORE INSTALLING

1. Read and become familiar with these installation
instructions before installing this unit (Fig. 1).

2. Be sure the installation conforms to all applicable local
and national codes.

3. These instructions containimportantinformation for the
proper maintenance and repair of this equipment. Re­tain these instructions for future use.

CONTENTS

Page

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

INSTALLATION .................................1-9

I. Locate the Unit ............................ 2

II. Rig and Place Unit ......................... 2

III. Compressor Mounting ...................... 2

IV. Unit Refrigerant Piping Connections .......... 2

V. Electrical Connections ...................... 6

VI. Accessory Installation ...................... 9

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

START-UP ..................................... 10

I. Start-Up and Adjustments .................. 10

CARE AND MAINTENANCE ...................... 10

SERVICE .....................................11-13

I. Cleaning ................................ 11

II. Lubrication .............................. 11

III. Condenser-Fan Adjustment ................ 11

IV. Capacity Control .......................... 12

V. Compressor Removal ..................... 12

VI. Crankcase Heater ......................... 12

VII. Refrigerant Charge ........................ 12

VIII. Refrigerant Service Ports ...................12

TROUBLESHOOTING GUIDE ....................14,15

SAFETY CONSIDERATIONS

WARNING:

ation, service, maintenance, or use can cause explo­sion, fire, electric shock, or other occurrences which may
injure you or damage your property. Consult a quali­fied installer or service agency for information or assis­tance. The qualified installer or agency must use only
factory-authorized kits or accessories when repairing this
product.

Recognize safety information. This is the safety-alert sym­bol. ( ) When you see this symbol on the unit and in
instructions or manuals, be alert to the potential for per­sonal injury.

Improper installation, adjustment, alter-

569C
576B

Cancels: II 569C-72-3 II 569C-72-4

5/1/99

Fig.1—Typical Unit (569C072 Shown)

Understand the signal words — DANGER, WARNING, and
CAUTION. 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 indicates
a condition that could result in personal injury. Caution is
used to identify unsafe practices which would result in minor
personal injury or product and property damage.

WARNING:

nance operations on unit, turn off main power switch
to unit. Electrical shock could cause personal injury.

1. The power supply (volts, hertz, and phase) must corre­spond to that specified on unit rating plate.

2. The electrical supply provided by the utility must be suf­ficient to handle load imposed by this unit.

3. Refer to the Locate the Unit section on page 2 and
Fig. 2 and 3 for locations of electrical inlets, required
clearances, and weight distribution based on recom­mended support points before setting unit in place.

4. This installation must conform with local building codes.
Refer to local plumbing or wastewater codes and other
applicable local codes.

NOTE: When installing any accessory item, see the manu­facturer’s installation instructions packaged with the acces­sory. A qualified agency must use factory-authorized kits or
accessories when modifying this unit.

The 569C072,090, and 120 units use hermetic compressors.
The 576B090,102, and 120 units use semi-hermetic compres­sors. Refer to Tables 1A and 1B.

Before performing service or mainte-

INSTALLATION

NOTE: If vibration isolators are required for a particular in-

stallation, use corner weight information in Fig. 2 to make
proper selection.

NOTES:

1. Dimensions in [ ] are in millimeters.

2. See Fig. 3 for additional information.

WEIGHT CHART*

UNIT

569C072 340 154 86 39 53 24 77 35 124 56
569C090 370 168 86 39 78 35 99 45 107 49
569C120 395 179 89 40 92 42 109 49 105 48
576B090 510 231 115 52 89 40 133 60 173 87
576B102 564 256 133 50 97 44 141 64 193 88
576B120 564 256 133 60 97 44 141 64 193 88

*Weights are for aluminum coils.

Std Unit
Lb Kg Lb Kg Lb Kg Lb Kg Lb Kg

CornerWCornerXCornerYCorner

Z

Fig.2—Weight Distribution

I. LOCATE THE UNIT
A. Clearance

Maintain clearance around and above unit to provide mini­mum distance from combustible materials, proper airflow,and
service access. Refer to Fig. 2 and 3.

Minimum clearance (local codes or jurisdiction may prevail):
a. Bottom to combustible surfaces 0 inches.
b. Condenser coil, for proper airflow, 36 in. (914 mm) one side,

12 in. (305 mm) the other. The left or rear side receiving
the greater clearance is optional.

c. Overhead, 60 in. (1524 mm) to ensure proper condenser

fan operation.

d. Between units, control box side, 42 in. (1067 mm) per NEC

(National Electrical Code, U.S.A. Standard).

e. Between unit and ungrounded surfaces, control box side,

36 in. (914 mm) per NEC.

f. Between unit and block or concrete walls and other grounded

surfaces, control box side, 42 in. (1067 mm) per NEC.

Although unit is weatherproof, guard against water from higher
level runoff and overhangs.

Slab-mounted units should be at least 4 in. (102 mm) above
the highest expected water level (flood and runoff). Do not
use the unit if it has been under water.

II. RIG AND PLACE UNIT

Inspect unit for transportation damage. File any claim with
transportation agency. Keep unit upright and do not drop.
Spreader bars are not required if top crating is left on unit.
Rollers may be used to move unit across a roof. Level by us­ing unit frame as a reference. See Tables 1A and 1B and Fig. 4
for additional information. Operating weight is shown in
Tables 1A and 1B.

These units are designed for overhead rigging only. Rig with
packaging assembly and wood bumper strips in place to pre­vent unit damage by rigging cable. As further protection for
coil faces, plywood sheets may be placed against sides of unit,
behind cables. Run cables to a central suspension point so
that angle from the horizontal is not less than 45 degrees.
Raise and set unit down carefully.

If it is necessary to roll unit into position,mount unit on lon­gitudinal rails, using a minimum of 3 rollers. Apply force to
rails, not unit. If unit is to be skidded into position, place it
on a large pad and drag it by the pad. Do not apply any force

to unit.

Raise from above to lift unit from rails or pad when unit is in
final position.

Lifting holes are provided in base rails as shown in Fig. 4.
Refer to rigging instructions on unit.

IMPORTANT: If unit has forklift protection skids, be sure to
remove forklift protection skids from under unit before set­ting unit in place.

After unit is in position, remove shipping materials and rig­ging skids.

III. COMPRESSOR MOUNTING

Compressors are shipped from the factory held down by 4 bolts.
After unit is installed, loosen each bolt until the snubber washer
can be moved with finger pressure (376B units only). See Fig. 5.

IV. UNIT REFRIGERANT PIPING CONNECTIONS

Suction connection is sweat with plastic cap; liquid connec­tion is sweat with plastic cap. Refer to Table 2 for refrigerant
piping sizes. Follow standard piping practices.

A. Size Refrigerant Lines

Consider length of piping required between condensing unit
and evaporator, amount of liquid lift, and compressor oil
return. See Table 3 for design details and line sizing. Refer
to evaporator installation instructions for additional
information.

—2—

Table 1A — Specifications (English)

UNIT 569C072 569C090 569C120 576B090 576B102 576B120
NOMINAL CAPACITY (Tons) 67
OPERATING WEIGHT (lb)

Aluminum Coils (Standard) 340 370 395 510 564 564
Copper Coils (Optional) 386 438 472 578 632 632

RIGGING WEIGHT (lb)

Aluminum Coils (Standard) 390 420 445 560 614 614
Copper Coils (Optional) 436 488 522 628 682 682

1

⁄

2

10 71⁄

2

81⁄

2

10

REFRIGERANT* R-22
COMPRESSOR Bristol, Reciprocating Copeland, Scroll Copeland, Scroll Reciprocating, Semi-Hermetic

Quantity...Type 1...H26A72Q 1...ZR94KC 1...ZR125KC 1...06DA818 1...06DA824
Quantity Cylinders 2——4 6

Speed (Rpm) 3500 3500 3500 1750 1750
Oil Charge (oz) (ea) 65 85 110 88 128

CONDENSER FAN Propeller; Direct Drive

Quantity...Rpm 1...850 1...1100
Diameter (in.) 26 26
Motor Hp (NEMA)
Nominal Airflow (cfm) 3800 6500 7000 6500 6500 6500

CONDENSER COIL Enhanced Copper Tubes, Aluminum Lanced Fins

Face Area (sq ft) 12.24 15.75 20.5 18.0 18.0 18.0
Storage Capacity (lb)† 11.26 14.88 18.87 16.56 16.56 16.56

CONNECTIONS (sweat)

Suction (in.) 1
Liquid (in.)

CONTROLS

Pressurestat Settings (psig)

High Cutout 426 6 7

Cut-in 320 6 20

Low Cutout 7 6 3

Cut-in 22 6 5

LEGEND

NEMA — National Electrical ManufacturingAssociation

*Unit is factory supplied with holding charge only.

†Storage capacity of condenser coil with coil 80% full of liquid R-22 at

124 F.

1

⁄

3

1

⁄

8

1

⁄

2

11⁄

8

1

⁄

2

NOTE: Unit 576B120 has one step of unloading. Full load is 100% ca­pacity, and one step of unloading is 67% capacity. Unit 576B120 has
the following unloader settings: load is 70 6 1 psig and unload is
60 6 2 psig.

11⁄

8

5

⁄

8

3

⁄

4

11⁄

8

1

⁄

2

11⁄

8

5

⁄

8

1...06DH824
(See Note)

11⁄

8

5

⁄

8

—3—

Table 1B — Specifications (SI)

UNIT 569C072 569C090 569C120 576B090 576B102 576B120
NOMINAL CAPACITY (kW) 21 26 35 26 29.9 35
OPERATING WEIGHT (kg)

Aluminum Coils (Standard) 154 168 179 231 256 256
Copper Coils (Optional) 175 199 214 262 287 287

RIGGING WEIGHT (kg)

Aluminum Coils (Standard) 176 191 202 254 279 279

Copper Coils (Optional) 198 221 237 285 309 309
REFRIGERANT* R-22
COMPRESSOR Bristol, Reciprocating Copeland, Scroll Copeland, Scroll Reciprocating, Semi-Hermetic

Quantity...Type 1...H26A72Q 1...ZR94KC 1...ZR125KC 1...06DA818 1...06DA824

Quantity Cylinders 2——4 6

Speed (R/s) 58.4 58.4 58.4 29.2 29.2

Oil Charge (L) (ea) 1.92 2.51 3.25 2.60 3.78
CONDENSER FAN Propeller; Direct Drive

Quantity...R/s 1...14.2 1...18.3

Diameter (mm) 660 660

Motor Hp (NEMA)

Nominal Airflow (L/s) 1800 3050 3300 3050 3050 3050
CONDENSER COIL Enhanced Copper Tubes, Aluminum Lanced Fins

Face Area (sq m) 1.14 1.46 1.90 1.67 1.67 1.67

Storage Capacity (kg)† 5.1 6.75 8.6 7.5 7.5 7.5
CONNECTIONS (sweat)

Suction (in.) 1

Liquid (in.)
CONTROLS

Pressurestat Settings (kPa)

High Cutout 2937 6 48

Cut-in 2206 6 138

Low Cutout 48 6 20

Cut-in 152 6 34

LEGEND

NEMA — National Electrical ManufacturingAssociation

*Unit is factory supplied with holding charge only.

†Storage capacity of condenser coil with coil 80% full of liquid R-22 at

51 C.

1

⁄

3

1

⁄

8

1

⁄

2

11⁄

8

1

⁄

2

NOTES:

1. Unit576B120 has one step of unloading. Full load is 100% capacity,

2. Equivalent mm values for connectors are as follows:

11⁄

8

5

⁄

8

and one step of unloading is 67% capacity. Unit 576B120 has the
following unloader settings: load is 483 6 6.9 kPa and unload is
414 6 13.8 kPa.

3

⁄

4

11⁄

8

1

⁄

2

11⁄

8

5

⁄

8

in. mm

1

⁄212.7

5

⁄815.9

11⁄828.6

1...06DH824
(See Note 1)

11⁄

8

5

⁄

8

—4—

UNIT DIM. A DIM. B DIM. C DIM. D DIM. E DIM. F

569C072

569C090

569C120

576B090

576B102

576B120

NOTES:

1. Dimensions in [ ] are in millimeters.

1

⁄29 18-23⁄49 —18-21⁄49 18-45⁄169 28-95⁄

18-6
[470.0] [375.0] — [362] [415] [846.5]

18-89 18-6

[508.0] [470.0] — [381] [613] [1052.5]

18-99 18-89 28-09 18-39 28-

[533.4] [508.0] [609.6] [381] [613] [1052.5]

18-69 18-4

[457.2] [425.5] [858.8] [381] [613] [1052.5]

18-79 18-59 28-9

[482.6] [431.8] [858.8] [381] [613] [1052.5]

18-79 18-59 28-9

[482.6] [431.8] [858.8] [381] [613] [1052.5]

1

⁄29 —18-39 28-5⁄169 38-57⁄

5

⁄169 38-57⁄

3

⁄49 28-913⁄169 18-39 28-5⁄169 38-57⁄

13

⁄169 18-39 28-5⁄169 38-57⁄

13

⁄169 18-39 28-5⁄169 38-57⁄

16

9

16

9

16

9

16

9

16

9

16

9

2. Center of Gravity. See chart for dimensions.

3. Direction of Airflow.

4. Minimum clearance (local codes or jurisdiction may prevail):
a. Condenser coil, for proper airflow, 36 in. [914] one side, 12 in. [305]

the other.The left or rear side getting the greater clearance is optional.

b. Overhead, 60 in. [1524] to assure proper condenser fan operation.

UNIT

Std Unit Corner W Corner X Corner Y Corner Z

Lb Kg Lb Kg Lb Kg Lb Kg Lb Kg

569C072 340 154 86 39 53 24 77 35 124 56
569C090 370 168 86 39 78 35 99 45 107 49
569C120 395 179 89 40 92 42 109 49 105 48
576B090 510 231 115 52 89 40 133 60 173 87
576B102 564 256 133 60 97 44 141 64 193 88
576B120 564 256 133 60 97 44 141 64 193 88

*Weights are for aluminum coils.

c. Between units, control box side, 42 in. [1067]

per NEC (National Electrical Code) (U.S.A.
Standard).

d. Between unit and ungrounded surfaces, con-

trol box side, 36 in. [914] per NEC.

e. Betweenunit and block or concrete walls and

other grounded surfaces, control box side,
42 in. [1067] per NEC.

5. With the exception of the clearance for the con­denser coil as stated in note 4b, a removable
fence or barricade requires no clearance.

6. Unitsmay be installed on combustible floors made
from wood or Class A, B, or C roof covering
material.

WEIGHT CHART*

ELECTRICAL CONNECTIONS

CONNECTION SIZES

3

AA 1

⁄89 DIA [35] FIELD POWER SUPPLY HOLE

BB 29 DIA [51] POWER SUPPLY KNOCK-OUT

1

⁄29 DIA [64] POWER SUPPLY KNOCK-OUT

CC 2

7

⁄89 DIA [22] FIELD CONTROL WIRING HOLE

DD

SERVICE VALVE CONNECTIONS — 60 Hz

UNIT SUCTION LIQUID

569C072 1
569C090 1
569C120 1
576B090 1
576B102 1
576B120 1

1

⁄89 [28.6]

1

⁄89 [28.6]

1

⁄89 [28.6]

1

⁄89 [28.6]

1

⁄89 [28.6]

1

⁄89 [28.6]

1

⁄29 [12.7]

1

⁄29 [12.7]

5

⁄89 [15.9]

1

⁄29 [12.7]

5

⁄89 [15.9]

5

⁄89 [15.9]

Fig. 3 — Base Unit Dimensions

UNIT

569C072 390 176 45.0 1143 38.5 978 35.5 904
569C090 420 191 45.0 1143 38.5 978 43.5 1105
569C120 445 202 45.0 1143 38.5 978 43.5 1105
576B090 560 254 45.0 1143 38.5 978 43.5 1105
576B102 614 279 45.0 1143 38.5 978 43.5 1105
576B120 614 279 45.0 1143 38.5 978 43.5 1105

*Weights are for aluminum coils.

RIGGING WEIGHT* A B C

lb kg in. mm in. mm in. mm

Fig. 4 — Rigging Label

—5—

Table 3 — Liquid Line Data

Fig.5—Typical Compressor Mounting (576B Units)

B. Filter Drier and Moisture Indicator

The filter drier is factory installed. Moisture indicator is a
field-installed accessory and should be installed just after liq­uid line shutoff valve. Do not use a receiver. A receiver is not
supplied with the unit and should not be used.

NOTE: Unit is shipped with R-22 holding charge. System pres­sure must be relieved before removing caps. Recover refrig­erant prior to brazing.

Pass nitrogen or other inert gas through piping while braz­ing to prevent formation of copper oxide.

Install field-supplied thermostatic expansion valve(s) in evapo­rator section. It is recommended that a field supplied liq­uid line solenoid be positioned in the main liquid line (near
the evaporator coil). It should be wired to close when com­pressor stops to minimize refrigerant migration during the
‘‘OFF’’ cycle.

Table 2 — Refrigerant Piping Sizes

LINEAR LENGTH OF PIPING — FT (M)

0-25

UNIT

(0-7.6)

LSLSLSLS

569C072

1

⁄211⁄

569C0901⁄211⁄
569C1205⁄811⁄
576B0901⁄211⁄
576B1025⁄811⁄
576B1205⁄811⁄

LEGEND

L—Liquid Line S—Suction Line
NOTES:

1. Pipe sizes are based on a 2° F (1° C) loss for liquid and suction
lines.

2. Pipe sizes are based on the maximum linear length shown for each
column, plus a 50% allowance for fittings.

3. Chargeunits with R-22 in accordance with unit installation instructions.

4. Line size conversion to mm is:

in. mm

1

⁄

2

5

⁄

8
1

1

⁄

8

13⁄

8

8
8
8
8
8
8

12.7

15.9

28.6

34.9

25-50

(7.6-15.2)

Line Size (in. OD)

1

⁄211⁄
⁄211⁄
⁄813⁄
⁄211⁄
⁄811⁄
⁄811⁄

8
8
8
8
8
8

1
5
1
5
5

50-75

(15.2-22.9)

1

⁄

2

11⁄

5

⁄

8

11⁄

5

⁄

8

13⁄

5

⁄

8

11⁄

5

⁄

8

13⁄

5

⁄

8

13⁄

8
8
8
8
8
8

75-100

(22.9-30.5)

1

⁄

2

11⁄

5

⁄

8

13⁄

5

⁄

8

13⁄

5

⁄

8

13⁄

5

⁄

8

13⁄

5

⁄

8

13⁄

8
8
8
8
8
8

LIQUID LINE

Max Allowable

Temp Loss

UNIT

MAX

ALLOWABLE

LIQUID LIFT

Max Allowable
Pressure Drop

Ft M psi kPa F C

569C072 86 26.2 7 48.3 2 1
569C090 60 18.3 7 48.3 2 1
569C120 70 21.3 7 48.3 2 1
576B090 60 18.3 7 48.3 2 1
576B102 65 19.8 7 48.3 2 1
576B120 65 19.8 7 48.3 2 1

NOTE: Values shown are for units operating at 45 F (7.2 C) saturated

suction and 95 F (35 C) entering air.

V. ELECTRICAL CONNECTIONS

WARNING:

The unit cabinet must have an uninter­rupted, unbroken electrical ground to minimize the pos­sibility of personal injury if an electrical fault should
occur. This ground may consist of electrical wire con­nected to the unit ground lug in the control compart­ment or conduit approved for electrical ground when
installed in accordance with the NEC and local electri­cal codes. Failure to adhere to this warning could re­sult in personal injury.

CAUTION:

Failure to follow these precautions could
result in damage to the unit being installed:

A. Field Power Supply (Fig. 6-8)

1. Make all electrical connections in accordance with NEC
ANSI/NFPA (American National Standards Institute/
National Fire ProtectionAssociation) 70, latest edition,
and local electrical codes governing such wiring. Refer
to unit wiring diagram.

2. Use only copper or copper-clad conductor fan connec­tions between field-supplied electrical disconnect switch
and unit. DO NOT USE ALUMINUM WIRE. Maximum
wire size is no. 2 AWG (American Wire Gage).

3. Voltage to compressor terminals during operation must
be within voltage range indicated on unit nameplate (also
see Table 4). On 3-phase units, voltages between phases
must be balanced within 2% and the current within 10%.
Use the formula shown inTable 4, Note 2, to determine
the percent voltage imbalance. Operation on improper
line voltage or excessive phase imbalance constitutes abuse
and may cause damage to electrical components. Such
operation would invalidate any applicable warranty.

4. Insulate low-voltage wires for highest voltage con­tained within conduit when low-voltage control wires are
run in same conduit as high-voltage wires.

5. Donot damage internal components when drilling through
any panel to mount electrical hardware, conduit, etc.

—6—