Bryant 524J User Manual

524J

Packaged Air-Handling Units
60 Hz
with Puron® (R-410A) Refrigerant
Sizes 07, 08, 12, 14, 16

Installation, Start-Up and

Service Instructions

TABLE OF CONTENTS

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

PRE-INSTALLATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2

Moving and Storage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2

Rigging. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2

INSTALLATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-19

General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2

Uncrating . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2

Accessories . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2

Unit Positioning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

Unit Isolation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

Refrigerant Piping Access . . . . . . . . . . . . . . . . . . . . . . . 11

Refrigerant Piping . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

Condensate Drain . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

Fan Motors and Drives . . . . . . . . . . . . . . . . . . . . . . . . . 15

Power Supply and Wiring . . . . . . . . . . . . . . . . . . . . . . . 16

Connecting Ductwork . . . . . . . . . . . . . . . . . . . . . . . . . . 19

Return-Air Filters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

START-UP. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20

SERVICE. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20-33

Panels . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20

Fan Motor Lubrication. . . . . . . . . . . . . . . . . . . . . . . . . . 20

Fan Shaft Bearings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20

Centering Fan Wheel . . . . . . . . . . . . . . . . . . . . . . . . . . . 21

Fan Shaft Position Adjustment . . . . . . . . . . . . . . . . . . . 21

Individual Fan Wheel Adjustment . . . . . . . . . . . . . . . . 21

Fan Belts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21

Fan Rotation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21

Fan Pulley Alignment . . . . . . . . . . . . . . . . . . . . . . . . . . 22

Pulley and Drive Adjustment . . . . . . . . . . . . . . . . . . . . 22

Condensate Drains . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22

Return-Air Filters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22

Coil Removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22

Cleaning Cooling Coil . . . . . . . . . . . . . . . . . . . . . . . . . . 22

Cleaning Insulation . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22

Replacing Filters. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23

START-UP CHECKLIST . . . . . . . . . . . . . . . . . . . CL-1, CL-2

SAFETY CONSIDERATIONS

Improper installation, adjustment, alteration, service,
maintenance, or use can cause explosion, fire, electrical shock
or other conditions which may cause personal injury or
property damage. Consult a qualified installer, 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 . When you see this symbol on the 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 safety­alert 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.

ELECTRICAL SHOCK HAZARD

Failure to follow this warning could cause personal injury
or death.

Before performing service or maintenance operations on
unit, always turn off main power switch to unit and install
lockout tag. Unit may have more than one power switch.

UNIT OPERATION AND SAFETY HAZARD

Failure to follow this warning could cause personal injury,
death and/or equipment damage.

Puron® (R-410A) refrigerant systems operate at higher
pressures than standard R-22 systems. Do not use R-22
service equipment or components on Puron refrigerant
equipment.

PERSONAL INJURY AND ENVIRONMENTAL
HAZARD

Failure to follow this warning could cause personal injury
or death.

Relieve pressure and recover all refrigerant before system
repair or final unit disposal.

Wear safety glasses and gloves when handling refrigerants.
Keep torches and other ignition sources away from
refrigerants and oils.

CUT HAZARD

Failure to follow this caution may result in personal injury.
Sheet metal parts may have sharp edges or burrs. Use care

and wear appropriate protective clothing, safety glasses and
gloves when handling parts and servicing 524J units.

UNIT OPERATION HAZARD

Failure to follow this caution could cause equipment
damage.

Ensure voltage listed on unit data plate agrees with
electrical supply provided for the unit.

PRE-INSTALLATION

1. The power supply (v, ph, and Hz) 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 Installation, General section (page 2) and
Fig. 1A and Fig. 1B for locations of electrical inlets, con­densate drain, duct connections, and required clearances
before setting unit in place.

4. This installation must conform with local building codes
and with the NEC (National Electrical Code) or ANSI
(American National Standards Institute)/NFPA (National
Fire Protection Association) latest revision. Refer to
provincial and local plumbing or wastewater codes and
other applicable local codes.

Moving and Storage — To transfer unit from truck to

storage site, use a fork truck. Do not stack units more than
2 high during storage. If unit is to be stored for more than
2 weeks before installation, choose a level, dry storage site free
from vibration. Do not remove plastic wrap or skid from unit
until final installation.

Rigging — All 524J Series units can be rigged by using the

shipping skid. Units are shipped fully assembled. Do not
remove shipping skids or protective covering until unit is ready
for final placement; damage to bottom panels can result. Use
slings and spreader bars as applicable to lift unit.

INSTALLATION

General — Allow 2

clearance and airflow. For units equipped with an economizer,
refer to the accessory installation instructions for additional
clearance requirements. Be sure floor, wall, or ceiling can
support unit weight (Tables 1A – 1D). See Fig. 1A and Fig. 1B
for dimensions.

Uncrating — Move unit as near as possible to final

location before removing shipping skid.
Remove metal banding, top skid, and plastic wrap. Examine

unit for shipping damage. If shipping damage is evident, file
claim with transportation agency. Remove base skid just prior
to actual installation.

Check nameplate information against available power supply
and model number description in Fig. 2.

NOTE: Be sure to remove the styrofoam shipping pad from
the thermostatic expansion valve (TXV). Verify that it has
been removed. See Fig. 3.

Accessories — Refer to instructions shipped with each

accessory for specific information.

1

/2 ft at front and side of unit for service

2

Table 1A — 524J***A Physical Data, English — Cooling Units

UNIT 524J* 07A 08A 12A 14A 16A

8

2

2

1

2250-

3750

1...11/

/

2

8

2

1

/

2

10 121/

3000-

5000

2...11/

8

1

/4 ODM/1 IDF

3750-

6250

2...11/

2...5/

1...21/

1..11/

2

8

8

2

2

15

4500-

7500

2...11/

8

1...2

1...2

4...16 x 20 x 2

4...16 x 24 x 2

NOMINAL CAPACITY (Tons) 67
OPERATING WEIGHT (lb)

Base Unit with TXV 381 385 405 670 685
Plenum 175 175 175 225 225

FANS

Qty...Diam. (in.) 1...15 1...15 1...15 2...15 2...15
Nominal Airflow (cfm) 2400 3000 4000 5000 6000

Airflow Range (cfm)

1800-

3000

Nominal Motor Hp (Standard Motor)

208/230-1-60 1.3 2.4 — — —
208/230-3-60 and 460-3-60 2.4 2.4 2.4 2.9 3.7
575-3-60 1.0 2.0 2.0 3.0 3.0

Motor Speed (rpm)

208/230-1-60 1725 1725 — — —
208/230-3-60 and 460-3-60 1725 1725 1725 1725 1725
575-3-60 1725 1725 1725 1725 1725

REFRIGERANT R-410A

Operating charge (lb)
(approx per circuit

†

3.0 3.0 1.5/1.5 2.0/2.0 2.5/2.5

DIRECT-EXPANSION COIL Enhanced Copper Tubes, Aluminum Sine-Wave Fins

Max Working Pressure (psig) 450
Face Area (sq ft) 6.67 8.33 10.0 13.25 17.67
No. of Splits 11 2 2 2
No. of Circuits per Split 12 15 9 12 16
Split Type...Percentage — — Face...50/50
Fins/in. 15 15 15 15 15

PIPING CONNECTIONS,

Quantity...Size (in.)

DX Coil — Suction (ODF) 1...1

1

/

8

DX Coil — Liquid Refrigerant (ODF) 1...5/
Steam Coil, In (MPT) 1...21/
Steam Coil, Out (MPT) 1...11/
Hot Water Coil, In (MPT) 1...11/
Hot Water Coil, Out (MPT) 1...1
Condensate (PVC) 1...1

FILTERS Throwaway — Factory Supplied

Quantity...Size (in.) 4...16 x 24 x 2

Access Location Either Side

STEAM COIL**

Max Working Pressure (psig at 260°F) 20
Total Face Area (sq ft) 6.67 6.67 6.67 13.33 13.33
Rows...Fins/in. 1...9 1...9 1...9 1...10 1...10

HOT WATER COIL**

Max Working Pressure (psig) 150
Total Face Area (sq ft) 6.67 6.67 6.67 13.33 13.33
Rows...Fins/in. 2...8.5 2...8.5 2...8.5 2...8.5 2...8.5
Water Volume

(gal) 8.3 13.9

3

(ft

) 1.1 1.85

LEGEND

DX — Direct Expansion
TXV — Thermostatic Expansion Valve

†

Units are shipped without refrigerant charge.

** Field installed accessory only.

3

Table 1B — 524J***A Physical Data, SI — Cooling Units

UNIT 524J* 07A 08A 12A 14A 16A
NOMINAL CAPACITY (kW) 21 26 35 43 52
OPERATING WEIGHT (kg)

Base Unit with TXV 173 175 184 304 311
Plenum 80 80 80 102 102

FANS

Qty...Diam. (mm) 1...381 1...381 1...381 2...381 2...381
Nominal Airflow (L/s) 1133 1604 1888 2360 2831
Airflow Range (L/s) 850-1416 1203-2006 1416-2360 1770-2949 2124-3539
Nominal Motor kW (Standard Motor)

208/230-1-60 0.97 1.79 — — —
208/230-3-60 and 460-3-60 1.79 1.79 1.79 2.16 2.16
575-3-60 0.75 1.49 1.49 2.24 2.24

Motor Speed (r/s)

208/230-1-60 28.8 28.8 — — —
208/230-3-60 and 460-3-60 28.8 28.8 28.8 28.8 28.8
575-3-60 28.8 28.8 28.8 28.8 28.8

REFRIGERANT R-410A

Operating charge (kg)
(approx per circuit)

†

DIRECT-EXPANSION COIL Enhanced Copper Tubes, Aluminum Sine-Wave Fins

Max Working Pressure (kPag) 3102
Face Area (sq m) 0.62 0.77 0.93 0.93 1.64
No. of Splits 11 2 2 2
No. of Circuits per Split 12 15 9 12 16
Split Type...Percentage — — Face...50/50
Fins/m 591 591 670 591 591

PIPING CONNECTIONS,

Quantity...Size (in.)

DX Coil — Suction (ODF) 1...1
DX Coil — Liquid Refrigerant (ODF) 1...5/
Steam Coil, In (MPT) 1...21/
Steam Coil, Out (MPT) 1...11/
Hot Water Coil, In (MPT) 1...11/
Hot Water Coil, Out (MPT) 1...1
Condensate (PVC) 1...1

FILTERS Throwaway — Factory Supplied

Quantity...Size 4...406 x 610 x 51

Access Location Either Side

STEAM COIL**

Max Working Pressure (kPag at 126°C) 138
Total Face Area (sq m) 0.62 0.62 0.62 1.24 1.24
Rows...Fins/m 1...355 1...355 1...355 1...394 1...394

HOT WATER COIL**

Max Working Pressure (kPag) 1034
Total Face Area (sq m) 0.62 0.62 0.62 1.24 1.24
Rows...Fins/m 2...335 2...335 2...335 2...335 2...335
Water Volume

(L) 31.4 52.6

3

(m

) 0.031 0.052

LEGEND

DX — Direct Expansion
TXV — Thermostatic Expansion Valve

†

Units are shipped without refrigerant charge.

** Field installed accessory only.

1.36 1.36 0.68/0.68 0.90/0.90 1.13/1.13

1

/

8

8

2

2

1...11/

8

2

1

/

2

2...11/

8

1

/4 ODM/1 IDF

2...11/

8

2...5/

8

1...21/

2

1..11/

2

1...2

1...2

4...406 x 508 x 51

4...406 x 610 x 51

2...11/

8

4

Table 1C — 524J***H Physical Data, English — Heat Pump Units

UNIT 524J* 07H 08H 12H
NOMINAL CAPACITY (Tons)

67

OPERATING WEIGHT (lb)

Base Unit with TXV 385 385 427
Plenum 175 175 175

FANS

Qty...Diam. (in.) 1...15 1...15 1...15
Nominal Airflow (cfm) 2400 3000 4000
Airflow Range (cfm) 1800-3000 2250-3750 3000-5000
Nominal Motor Hp (Standard Motor)

208/230-1-60 1.3 2.4 —
208/230-3-60 and 460-3-60 2.4 2.4 2.4
575-3-60 1.0 2.0 2.0

Motor Speed (rpm)

208/230-1-60 1725 1725 —
208/230-3-60 and 460-3-60 1725 1725 1725
575-3-60 1725 1725 1725

REFRIGERANT

Operating charge (lb)
(approx per circuit)

†

DIRECT-EXPANSION COIL

3.0 3.0 2.0/2.0

Enhanced Copper Tubes, Aluminum Sine-Wave Fins

Max Working Pressure (psig) 450
Face Area (sq ft) 8.33 8.33 10.0
No. of Splits 112
No. of Circuits per Split 15 15 9
Split Type...Percentage ———
Rows...Fins/in. 3...15 3...15 3...15

PIPING CONNECTIONS,

Quantity...Size (in.)

DX Coil — Suction (ODF) 1...1
DX Coil — Liquid Refrigerant (ODF) 1...5/
Steam Coil, In (MPT) 1...21/
Steam Coil, Out (MPT) 1...11/
Hot Water Coil, In (MPT) 1...11/
Hot Water Coil, Out (MPT) 1...11/

1

/

8

8

2
2
2
2

Condensate (PVC) 1...11/4 ODM/1 IDF

FILTERS

Quantity...Size (in.) 4...16 x 24 x 2
Access Location Either Side

STEAM COIL**

Max Working Pressure (psig at 260°F)
Total Face Area (sq ft) 6.67 6.67 6.67
Rows...Fins/in. 1...9 1...9 1...9

HOT WATER COIL**

Max Working Pressure (psig) 150
Total Face Area (sq ft) 6.67 6.67 6.67
Rows...Fins/in. 2...8.5 2...8.5 2...8.5
Water Volume

(gal)

3

) 1.1

(ft

LEGEND

DX — Direct Expansion
TXV — Thermostatic Expansion Valve

†

Units are shipped without refrigerant charge.

** Field installed accessory only.

1

/

2

R-410A

1...11/

8

1...5/

8

1...21/

2

1...11/

2

1...11/

2

1...11/

2

Throwaway —

Factory Supplied

20

8.3

10

2...11/

2...5/

1...21/

1...11/

1...11/

1...11/

8

8

2
2
2
2

5

Table 1D —524J***H Physical Data, SI — Heat Pump Units

UNIT 524J* 07H 08H 12H
NOMINAL CAPACITY (kW)

OPERATING WEIGHT (kg)

Base Unit with TXV 175 175 194
Plenum 80 80 80

FANS

Qty...Diam. (mm) 1...381 1...381 1...381
Nominal Airflow (L/s) 1133 1604 1888
Airflow Range (L/s) 850-1416 1203-2006 1416-2360
Nominal Motor kW (Standard Motor)

208/230-1-60 0.97 1.79 —
208/230-3-60 and 460-3-60 1.79 1.79 1.79
575-3-60 0.75 1.49 1.49

Motor Speed (r/s)

208/230-1-60 28.8 28.8 —
208/230-3-60 and 460-3-60 28.8 28.8 22.8
575-3-60 28.8 28.8 22.8

REFRIGERANT

Operating charge (kg)
(approx per circuit)

†

DIRECT-EXPANSION COIL

Max Working Pressure (kPag) 3102
Face Area (sq m) 0.77 0.77 0.93
No. of Splits 112
No. of Circuits per Split 12 15 9
Split Type...Percentage ———
Rows...Fins/m 3...591 3...591 3...591

PIPING CONNECTIONS,

Quantity...Size (in.)

DX Coil — Suction (ODF) 1...1
DX Coil — Liquid Refrigerant (ODF) 1...5/
Steam Coil, In (MPT) 1...21/
Steam Coil, Out (MPT) 1...11/
Hot Water Coil, In (MPT) 1...11/
Hot Water Coil, Out (MPT) 1...11/
Condensate (PVC) 1...11/4 ODM/1 IDF

FILTERS

Quantity...Size (mm) 4...406 x 610 x 51
Access Location Either Side

STEAM COIL**

Max Working Pressure (kPag at 126°C) 138
Total Face Area (sq m) 0.62 0.62 0.62
Rows...Fins/m 1...355 1...355 1...355

HOT WATER COIL**

Max Working Pressure (kPag) 1034
Total Face Area (sq m) 0.62 0.62 0.62

Rows...Fins/m 2...335 2...335

Water Volume

(L) 31.4

3

(m

) 0.031

LEGEND

DX — Direct Expansion
TXV — Thermostatic Expansion Valve

†

Units are shipped without refrigerant charge.

** Field installed accessory only.

21 26 35

R-410A

1.36 1.36 0.91/0.91

Enhanced Copper Tubes, Aluminum Sine-Wave Fins

1

/

8

8

2
2
2
2

1...11/

8

1...5/

8

1...21/

2

1...11/

2

1...11/

2

1...11/

2

Throwaway —

Factory Supplied

2...11/

2...5/

1...21/

1...11/

1...11/

1...11/

8

8

2
2
2
2

2...335

6

LEGEND

TXV — Thermostatic Expansion Valve
NOTES:

1. Dimensions in [ ] are in millimeters.

2. Direction of airflow.

3. Recommended clearance:

• Rear: 3 in. [76 mm]

• Front: 2 ft, 6 in. [762 mm]

• Right Side: 2 ft, 6 in. [762 mm]

• Left Side: 2 ft, 6 in. [762 mm]

• Local codes or jurisdiction may prevail.

4. Liquid piping not supplied by Bryant.

5. Duct flange is factory supplied and field
installed.

UNIT

UNIT WEIGHT

lb (kg)
524J*07A 381 (173)
524J*08A 385 (175)
524J*12A 405 (184)
524J*07H 385 (175)
524J*08H 385 (175)
524J*12H 427 (194)

Fig. 1A — Dimensions – Sizes 07 - 12

7

LEGEND

TXV — Thermostatic Expansion Valve
NOTES:

1. Dimensions in [ ] are in millimeters.

2. Direction of airflow.

3. Recommended clearance:

• Rear: 3 in. (76 mm)

• Front: 2 ft, 6 in. (762 mm)

• Right Side: 2 ft, 6 in. (762 mm)

• Left Side: 2 ft, 6 in. (762 mm)

• Local codes or jurisdiction may
prevail.

4. Liquid piping not supplied by Bryant.

5. Duct flange is factory-supplied and field-

installed.

UNIT

UNIT WEIGHT

lb (kg)
524J*14A 670 (304)
524J*16A 685 (331)

Fig. 1B — Dimensions – Sizes 14 and 16

8

1234567891011121314151617

5 2 4 J E 1 4 A 0 0 0 A 2 0 A A A

_____________

Model Type

Packa ging

524J = Bryant Fan Coil
Puronr R---410A Refrigerant

A=Standard

Typ e o f C oil

Service Options

B = High Capacity DX Coil
H = DX Coil for Heat Pump Duty

A = Standard DX Coil

A=None

B = Painted Cabinet

Indoor Fan Options

1 = Fan Drive and Motor - Low / Motor Efficency - Standard
2 = Fan Drive and Motor - Med / Motor Efficency - Standard

Not Used

A = Not Used

Not Used

0 = Not Used

Not Used

0 = Not Used

Coil Options

A=Al/Cu

Not Used

0 = Not Used

Not Used

0 = Not Used

3 = Fan Drive and Motor - High / Motor Efficency - Standard

Voltage

E = 460/3/60

P = 208/ 230/3/60 (Size 16 and Indoor Fan 3 Units Only)

J = 208/ 230/1/60 (07 and 08 Units Only)

T = 575/3/60

____

Nominal Tonnage

07 = 6 Tons
08 = 7.5 Tons

14 = 12.5 Tons

12 = 10 Tons

16 = 15 Tons

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POSITION NUMBER
TYPICAL

Year of manufacture (”08” = 2008)3−4

LEGEND

TXV — Thermostatic Expansion Valve

Fig. 2 — Model Number Nomenclature

Fig. 3 — Serial Number Nomenclature

Fig. 4 — Foam Block Location

9

Unit Positioning — The unit can be mounted on the

LEGEND

Accessory Line

Alternate Air Intake and Discharge

Air Intake and Discharge

Note:

Maintain recommended clearances
per Figs. 1A–1B

UNIT SIZES 14 - 16

NOTE: Dimensions in [ ] are millimeters

UNIT SIZES 07 - 12

OVERHEAD SUSPENSION ACCESSORY

floor for vertical application with return air entering the face of
the unit and supply air discharging vertically through the top of
the unit. The unit can also be applied in a horizontal
arrangement with return air entering horizontally and the
supply air discharging horizontally. When applying the unit in
a horizontal arrangement, ensure the condensate drain pan is
located at the bottom center of the unit for adequate condensate
disposal. See Fig. 5 for condensate connections for each unit
position.

Typical positioning and alternate return air locations are shown
in Fig. 5. Alternate return air locations can be used by moving
the unit panel from the alternate return air location to the
standard return air location. Refer to overhead suspension
accessory drawing (Fig. 6) for preferred suspension technique.
The unit needs support underneath to prevent sagging.

IMPORTANT: Do NOT attempt to install unit with return
air entering top panel of unit. Condensate will not drain
from unit.

Fig. 5 — Typical Unit Positioning

Fig. 6 — Preferred Suspension Technique

10

Unit Isolation — Where extremely quiet operation is

UNIT

USE HOLE
NUMBERS

524J*07A, 08A
524J*07H, 08H

1, 3

524J*12A, 14A, 16A

524J*12H

1, 2, 3, 4

essential, install isolators between floor and base of unit, or
between ceiling and top section of unit.

Be sure that unit is level and adequately supported. Use
channels at front and sides of unit for reference points when
leveling.

Refrigerant Piping Access — The 524J Series units

come with standard knockouts for refrigerant piping. These
knockouts are located on both sides of the unit for installation
flexibility. The standard knockouts provide sufficient access to
the unit’s coils for all 524J*07A, 08A, 12A, 14A and 16A units
as well as the 524J*07H, 08H, 12H units. See Fig. 7 for the
positions. Recommended access hole use is also listed for all
units. Note that Fig. 7 shows the access holes on the control­box side of the unit; this is the side of the unit with the coil
headers, so it is used most often for piping access.

IMPORTANT: Do not bury refrigerant piping underground.

Refrigerant Piping — See Tables 1A – 1D for refriger-

ant pipe connection sizes. For ease in brazing, it is recommend­ed that all internal solder joints be made before unit is placed in
final position.

The 524J direct-expansion units have internal
factory-installed thermostatic expansion valves (TXVs),

distributors, and nozzles for use with R-410A. See Table 2
for part numbers. Knockouts are provided in the unit corner
posts for 524J refrigerant piping. See Fig. 7, which also lists
recommended knockouts and access holes to use for each
524J unit size. Recommended fittings are listed in Table 3.

The sensor bulb capillary tubes must be routed from the TXVs
inside the unit through one of the piping access holes. Clamp
the TXV sensor bulb on a vertical portion of the suction line,
outside the unit. See Fig. 8.

NOTE: Be sure to remove the styrofoam shipping pad from
the TXV. Verify that it has been removed. See Fig. 4.

IMPORTANT: Never attach the sensor to the suction
manifold. Do NOT mount the sensor on a trapped portion
of the suction line.

The 524J Series evaporator coils have a face-split design.
Ensure that lower circuit of coil is first on/last off when
connected to the condensing unit and/or system controls. See
Fig. 8.

External TXV equalizer connections are provided and
factory-brazed into the coil suction manifolds.

If suction line must be horizontal, clamp bulb to suction line at
least 45 degrees above bottom, at approximately the 4 o’clock
or 8 o’clock position. See Fig. 9.

4
3

2
1

Fig. 7 — Refrigerant Piping Access Holes

11

UPPER

LEGEND:

TXV – Thermostatic Expansion Valve
NOTE: Component location arrangement shown for field installation of

sight glasses, solenoid valves, filter driers, and TXV sensing bulbs.
The TXVs and equilizer lines are factory installed.

FIRS T ON/L AST OFF = B

VERTICAL INSTALLATION

FIRS T ON/LAST OFF = A

HORIZONTAL INSTALLATION

LEGEND

TXV — Thermostatic Expansion Valve
NOTE: The 8 o’clock position is shown above.

SPLIT

AIRFLOW

TXV
SENSING
BULB

15 DIAMS

MIN

10

DIAMS

8 DIAMS

MIN

EQUALIZER LINE

FILTER
DRIER

TXV

SOLENOID

VALV E

SIGHT

GLASS

UPPER
SPLIT

AIRFLOW

LOWER
SPLIT

AIRFLOW

TXV
SENSING
BULB

15 DIAMS

MIN

TXV
SENSING
BULB

15 DIAMS

MIN

10

DIAMS

10

DIAMS

8 DIAMS

MIN

8 DIAMS

EQUALIZER LINE

TXV

EQUALIZER

LINE

TXV

MIN

INDOOR
COIL

FILTER

DRIER

SOLENOID

VALV E

SIGHT

GLASS

Single Circuit Coil Piping Configuration - 524J*07, 08

For single compressor condensing units.

Fig. 8 — Face-Split Coil Suction and Liquid Line Piping (Typical)

Dual Circuit Coil Piping Configuration - 524J*12-16

For single compressor condensing units

Fig. 9 — Typical Evaporator Coil Connections (524J)

Fig. 10 — TXV Sensing Bulb Location

12

Table 2 — Factory-Installed Nozzle and Distributor Data

UNIT

COIL TYPE

STD/HI EFF

TXV

Qty...Part No.

DISTRIBUTOR

Qty...Part No.

524J*07A 4 Row 1...BBIZE-5-GA 1...1135 12...

524J*07H 3 Row 1...BBIZE-5-GA 1...1136 15...

524J*08A 4 Row 1...BBIZE-6-GA 1...1136 15...

524J*08H 4 Row 1...BBIZE-8-GA 1...1113 12...

524J*12A 4 Row 2...BBIZE-4-GA 2...1135 9...

524J*12H 4 Row 2...BBIZE-5-GA 2...1113 9...

524J*14A 4 Row 2...BBIZE-5-GA 2...1113 12...
524J*16A 4 Row 2...BBIZE-6-GA 2...1136 16...

†

Feeder tube size is 1/4 in. (6.35 mm).

NOTE: Hot gas bypass applications require field-supplied auxiliary side connector.

Table 3 — Fitting Requirements

UNIT

ACCESS

HOLE NO.

†

1 Suction —

524J*07A
524J*07H

3 Liquid —

1 Suction —

524J*08A
524J*08H

3 Liquid —

1 Suction Lower

2 Liquid Lower

524J*12A

3 Liquid Upper

4 Suction Upper

1 Suction Lower

2 Liquid Lower

524J*12H

3 Liquid Upper

4 Suction Upper

†

See Fig. 7 for access hole location by number.

‡

Fittings are listed in order from header or tee stub connection out to access hole in corner support post.

CONNECTION

TYPE

CIRCUIT

FEEDER TUBES

PER DISTRIBUTOR

Qty...Size (in.)

1

/

4

1

/

4

1

/

4

3

/

16

1

/

4

3

/

16

3

/

16

3

/

16

1

1

/8 Street Elbow

1

/8 Nipple, 105/8 L

1

1

/8 Long Radius Elbow

1

5

/8 Street Elbow

5

/8 Nipple, 85/8 L

5

/8 Long Radius Elbow

1

/8 Street Elbow

1

1

/8 Nipple, 85/8 L

1

1

/8 Long Radius Elbow

1

5

/8 Street Elbow

5

/8 Nipple, 85/8 L

5

/8 Long Radius Elbow

1

/

(2) 1

5

/8 Street Elbow

5

/8 Nipple, 81/2 L

5

/8 Long Radius Elbow

5

/8 Street Elbow

5

/8 Nipple, 131/2 L

5

/8 Long Radius Elbow

1

/8 Nipple, 53/4 L

1

1

/8 Long Radius Elbow

1

1

/8 Nipple, 12 L

1

1

/8 Long Radius Elbow

1

1

/

(2) 1

5

/8 Street Elbow

5

/8 Nipple, 51/2 L

5

/8 Long Radius Elbow

5

/8 Street Elbow

5

/8 Nipple, 101/2 L

5

/8 Long Radius Elbow

1

1

/8 Nipple, 55/8 L

1

/8 Long Radius Elbow

1

1

/8 Nipple, 12 L

1

1

/8 Long Radius Elbow

1

†

NOZZLE

Qty...Part No.

1...G4

1...G5

1...G5

1...G5

2...G3

2...G3

2...G3

2...G4

FITTINGS REQUIRED

(in.)

Street Elbow

8

Street Elbow

8

‡

13

Table 3 — Fitting Requirements (cont)

UNIT

ACCESS

HOLE NO.

†

CONNECTION

TYPE

CIRCUIT

1 Suction Lower

2 Liquid Lower

524J*14A

3 Liquid Upper

4 Suction Upper

1 Suction Lower

2 Liquid Lower

524J*16A

3 Liquid Upper

4 Suction Upper

†

See Fig. 7 for access hole location by number.

‡

Fittings are listed in order from header or tee stub connection out to access hole in corner support post.

FITTINGS REQUIRED

(in.)

1

1

/8 Street Elbow

1

/8 Nipple, 75/8 L

1

1

/8 Long Radius Elbow

1

5

/8 Street Elbow

5

/8 Nipple, 17/16 L

5

/8 Long Radius Elbow

5

/8 Street Elbow

5

/8 Nipple, 111/2 L

5

/8 Long Radius Elbow

1

/8 Nipple, 55/8 L

1

1

/8 Long Radius Elbow

1

1

/8 Nipple, 13 L

1

1

/8 Long Radius Elbow

1

1

1

/8 Street Elbow

1

/8 Nipple, 723/4 L

1

1

/8 Long Radius Elbow

1

5

/8 Street Elbow

5

/8 Nipple, 13/8 L

5

/8 Long Radius Elbow

5

/8 Street Elbow

5

/8 Nipple, 111/2 L

5

/8 Long Radius Elbow

1

/8 Nipple, 55/8 L

1

1

/8 Long Radius Elbow

1

1

/8 Nipple, 13 L

1

1

/8 Long Radius Elbow

1

‡

14

Condensate Drain — Install a trapped condensate drain

NOTE: Dim ensions in [ ] ar e in millime ters.

line to unit connection as shown in Fig. 11. The unit drain con­nection is a PVC stub. See Fig. 12. Some areas may require an
adapter to connect to either galvanized steel or copper pipe.
For these applications, install a field-supplied threaded PVC
adapter.

3” MIN.

[76]

Fig. 11 — Condensate Drains

NOTE: A trap must be installed in the condensate drain line to
ensure that the static pressure of fans is balanced with the
water column in the drain line and that condensate can drain
completely from pan. Without a trap, air can be drawn up drain
line until water level in condensate pan becomes equal to static
pressure created by fans, preventing complete drainage. Condi­tions will worsen as filters become dirty.

Install clean-out plugs in trap. Pitch drain line downward to an
open floor drain or sump. Provide service clearance around
drain line to permit removal of unit panels. Observe all local
sanitary codes.

Fig. 12 — Drain Pan Slope Adjustment

As shipped, the unit’s condensate drain pan is NOT sloped to­wards the drain connection. The pan slope must be changed to
pitch towards the side of the unit with the drain connection. See
Fig. 12. Loosen the 2 screws next to the drain outlet at both
ends of the unit, push drain pan down in the slots near the drain
connection, and up in the slots on the opposite end. Retighten
screws. The pan should have a pitch of at least

1

/4-in. over its

length toward the drain connection.

Fan Motors and Drives — Motor and drive packages

are factory installed in all units. The motor and drive packages
consist of the following items:

1 — fan motor
1 — adjustable motor pulley
1 — fan pulley
1 — fan belt (524J*07A-12A and 524J*07H-12H units)
2 — matched fan belts (524J*14A-16A units)
For instructions on changing fan rotation, changing drive

speeds and adjusting drives, see Pulley and Drive Adjustment
in the Service section.

15

Power Supply and Wiring — Check the unit data

COPPER

WIRE ONLY

ELECTRIC

DISCONNECT

SWITCH

ALUMINUM

WIRE

A

LE GEN D

TXV —

Thermostatic Expansion Valve

23

22

21

1

3

1

2

1

1

1

0

5

°

C

6

00

VR

J

A

W

plate to ensure that available power supply matches electrical
characteristics of the unit. Provide a disconnect switch with an
integrated lock-out feature of size required to provide adequate
fan motor starting current. See Tables 4-6 for unit electrical
data.

FAN SCROLL

MOTOR

ND DRIVE

FAN
CONTACTOR
BOX

WIRE
ACCESS

ELECTRICAL SHOCK HAZARD

Failure to follow this warning could result in personal
injury or death.

Do not use gas piping as an electrical ground. 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 unit ground lug in control compartment,
or conduit approved for electrical ground when installed in
accordance with NEC (National Electrical Code); ANSI/
NFPA 70, latest edition (in Canada, Canadian Electrical
Code CSA [Canadian Standards Association] C22.1), and
local electrical codes.

FIRE HAZARD

Failure to follow this warning could result in intermittent
operation or performance satisfaction.

Do not connect aluminum wire between disconnect switch
and condensing unit. Use only copper wire.

(See Fig. 13.)

CONDENSATE
DRAIN
CONNECTION
(HORIZONTAL)

FILTER
ELEMENTS

FILTER
RETAINER
CLIP

FAN DRIVE
PULLEY

COIL

TXV BULB
ACCESS

REFRIGERANT/
CHILLED WATER
PIPING ACCESS

CONDENSATE
DRAIN
CONNNECTION
(VERTICAL)

Fig. 14 — Wiring and Service Access

(Side Panel Removed)

The 524J size 07-16 units that have motors wired for 460-v,
3-ph, 60 Hz operation can be field-converted to 208/230-v,
3-ph, 60 Hz operation. Rewire the motor according to the
diagram plate on the motor. After reconfiguring the motor,
mark the motor specifying 208-v or 230-v operation replacing
the 460-v sticker information on the units’ corner post.

Fan motors are factory-installed on all units. Indoor-fan
contactors are located in the fan contactor box behind the side
access panel (see Fig. 14 and 15). Wire the thermostat to the
24-v control circuit terminal block located in the side of the fan
contactor control box, according to Fig. 16 or the unit label
diagram. If the air handler is part of a split system, complete the
wiring from the condensing unit to the thermostat shown in
Fig. 16.

Install disconnect switch and power wiring in accordance with
all applicable local codes. See Fig. 14-16 and the unit label
diagram. For units with motor sizes less than 5 Hp (3.7 kW),
connect power wiring to unit with no. 10 ring terminal. For
units with motor sizes of 5 Hp (3.7 kW) or more, connect
power wiring with

Fig. 13 — Disconnect Switch and Unit

1

/4-in. ring terminal.

Fig. 15 — Fan Contactor Box and Terminal Block

(Cover Removed) (Typical)

16

Table 4 — Electrical Data, Standard Motors

UNIT V*-PH-Hz

208/230-1-60 187-253 1.3 (0.97) 7.6 9.5 15

524J*A07A
524J*A07H

524J*08A
524J*08H

524J*12A
524J*12H

524J*14A

524J*16A

See Legend and Notes on page 18.

208/230-3-60 187-253 2.4 (1.79) 5.8 7.3 15

460-3-60 414-506 2.4 (1.79) 2.6 3.3 15

575-3-60 518-632 1.0 (0.75) 1.4 1.7 15
208/230-1-60 187-253 2.4 (1.79) 11.0 13.8 20
208/230-3-60 187-253 2.4 (1.79) 5.8 7.3 15

460-3-60 414-506 2.4 (1.79) 2.6 3.3 15

575-3-60 518-632 2.0 (1.49) 2.4 8.0 15
208/230-3-60 187-253 2.4 (1.79) 5.8 7.5 15

460-3-60 414-506 2.4 (1.79) 2.6 3.3 15

575-3-60 518-632 2.0 (1.49) 2.4 3.0 15
208/230-3-60 187-253 2.4 (1.79) 5.8 7.5 15

460-3-60 414-506 2.4 (1.79) 2.6 3.3 15

575-3-60 518-632 3.0 (2.24) 3.8 4.8 15
208/230-3-60 187-253 3.7 (2.76) 10.6 13.3 20

460-3-60 414-506 3.7 (2.76) 4.6 6.0 15

575-3-60 518-632 3.0 (2.24) 3.8 4.8 15

VO LTAGE

LIMITS

FAN MOTOR POWER SUPPLY

Hp (kW) FLA

Table 5 — Electrical Data, Alternate Motors

Minimum

Circuit Amps

MOCP

UNIT V*-PH-Hz

208/230-1-60 187-253 2.4 (1.79) 11.0/11.0 13.8/13.8 20

524J*A07A
524J*A07H

524J*08A
524J*08H

524J*12A
524J*12H

524J*14A

524J*16A

See Legend and Notes on page 18.

208/230-3-60 187-253 2.9 (2.16) 7.5 9.4 15

460-3-60 414-506 2.9 (2.16) 3.4 4.3 15

575-3-60 518-632 2.0 (1.49) 2.4 3.0 15
208/230-1-60 187-253 2.4 (1.79) 11.0 13.8 15
208/230-3-60 187-253 2.9 (2.16) 7.5/7.5 9.4/9.4 15

460-3-60 414-506 2.9 (2.16) 3.4 4.3 15

575-3-60 518-632 3.0 (2.24) 3.8 4.8 15
208/230-3-60 187-253 3.7 (2.76) 10.5/10.5 13.3/13.3 20

460-3-60 414-506 3.7 (2.76) 4.8 6.0 15

575-3-60 518-632 3.0 (2.24) 3.8 4.8 15
208/230-3-60 187-253 3.7 (2.76) 10.2 12.7 20

460-3-60 414-506 3.7 (2.76) 4.8 6.0 15

575-3-60 518-632 5.0 (3.73) 5.1 6.4 15
208/230-3-60 187-253 5.0 (3.73) 14.6/12.8 18.3/16.0 30/25

460-3-60 414-506 5.0 (3.73) 6.4 8.0 15

575-3-60 518-632 5.0 (3.73) 5.1 6.4 15

VOLTAGE

LIMITS

FAN MOTOR POWER SUPPLY

Hp (kW) FLA

Minimum

Circuit Amps

MOCP

17

Legend and Notes For Tables 4 and 5

ages shown. Voltages should not exceed the limits shown in the Voltage Lim­its column.

dance with NEC (National Electrical Code), Article 440.

Laboratories) Standard 1995.

Never operate a motor where a phase imbalance in supply voltage is
greater than 2%. Use the following formula to determine the percentage of

voltage imbalance.

EXAMPLE: Supply voltage is 400-3-50.

AB = 393 v
BC = 403 v
AC = 396 v

Determine maximum deviation from average voltage

(AB) 397 – 393 = 4 v
(BC) 403 – 397 = 6 v
(AC) 397 – 396 = 1 v

Maximum deviation is 6 v.
Determine percent voltage imbalance.

This amount of phase imbalance is satisfactory because it is below the maxi­mum allowable 2%.

FLA — Full Load Amps
MOCP

—

Maximum Overcurrent Protection

max voltage deviation from average voltage

average voltage

Average Voltage =

393 + 403 + 396

3

=

119 2

3

=

397

% Voltage Imbalance = 100 x

6

397

=1.5%

IMPORTANT: If the supply voltage phase imbalance is more than

2%, contact your local electric utility company immediately.

LEGEND

NOTE: Use copper conductors only.

EQUIP — Equipment
GND — Ground
HC — Heating Contactor
HTR — Electric Heater
IFC — Indoor-Fan Contactor
IFM — Indoor-Fan Motor
TB — Termi nal Bl oc k
T’STAT — Thermostat

Factory Wiring
Field Control Wiring

Fig. 16 — Unit Wiring

18

Table 6 — Fan Contactor Coil Data

UNIT

524J*

07A, 07H, 08A, 08H

12A 12H, 14A, 16A

VOLTAGE

(vac)

24 10

MAXIMUM

HOLDING

VA

Connecting Ductwork — Refer to the System Design

Manual for the recommended design and layout of ductwork.
Figure 17 shows recommended duct connection to units with 2
fans.

UNIT OPERATION HAZARD

Failure to follow this caution could cause equipment
damage.

Do not operate unit without ductwork or discharge plenum
unless fan speed has been adjusted for external static
pressure of zero in. wg. Failure to do so may result in
motor overload.

DISCHARGE CONNECTIONS — Duct flanges are
factory-supplied; they are shipped inside the unit attached to
the hairpin end of the coil tube sheet for field installation.
Using the existing screws, install the duct flanges on the unit’s
fan deck. Each fan discharge requires 2 flanges; each flange
must be bent in the middle to conform to the discharge
opening. See Fig. 19. After flanges are installed, connect them
to the supply duct using a canvas connection to prevent
vibration. It is important that this connection be properly
fabricated to prevent high air friction losses and air noise.

RETURN CONNECTION — When using return-air
ductwork, route return-air duct to the unit’s return air inlet near
the filter rack, using a canvas connection to prevent
transmission of unit vibration. If the duct blocks off the unit’s
access panel, provide a slip joint in the ductwork to permit
removal for servicing.

OUTDOOR-AIR INLET CONNECTION — Connect outdoor­air inlet to field-installed accessory economizer. Refer to
Economizer Installation Instructions.

Return-Air Filters — Type and size of filters are shown

in Tables 1A – 1D and are factory-supplied and factory­installed. In all units with 2 fans, a filter replacement tool
(hook) is shipped inside the unit for field use when replacing
filters. See the Service section for instructions on filter element
replacement.

Fig. 17 — Typical Fan Discharge Connections for Multiple Fan Units

19

Fig. 18 — Duct Flange Installation

START-UP

Before starting unit, check the following and correct as neces­sary:

• Is unit solidly supported?

• Is fan adjusted for speed and pulley alignment?

• Are pulleys, motor, and bearings securely mounted?

• Are there any loose parts that will rattle or vibrate?

• Is condensate drain pan pitched for correct drainage?

• Are coil baffle plates tight against coil to prevent air
bypass?

• Are all panels securely fastened?

• Are all electrical connections correct and tight?

Also refer to condensing unit instructions before starting a split
system. A split system start-up checklist is provided at the end
of these instructions.

SERVICE

Inspection and maintenance should be performed at regular in­tervals and should include the following:

• Complete cleaning of cabinet, fan wheel, cooling coil,
condensate pan and drain, heating coils, and return-air
grille (if present).

• Inspection of panels and sealing of unit against air
leakage.

• Adjustment of fan motor, belt, bearings, and wheels.

• Cleaning or replacement of filters.

• Testing for cooling/heating system leaks.

• Checking of all electrical connections.

Most unit service can be performed by removing one or both of
the unit’s side panels. Coil cleaning or removal or insulation
cleaning may require removal of a rear, top, or bottom panel,
depending on the unit’s orientation. When service is
completed, replace unit panels.

Panels — Panels are fastened to unit frame with sheet metal

screws. Fan and coil compartment must be sealed tightly after
service to prevent air from bypassing the cooling coil.

Fan Motor Lubrication — Fan motor supplied with

unit is permanently lubricated and requires no further
lubrication.

Fan Shaft Bearings — Bearings on size 07-12 units are

sealed, permanently lubricated bearings that require no further
lubrication. Size 14-16 units have pillow-block bearings
(Fig. 20) that must be lubricated with suitable bearing grease
approximately every 3 months. See Table 7 for suitable
lubricants.

Table 7 — Lubricant Data

MANUFACTURER LUBRICANT

Mobil Mobilplex EP No. 2
Sunoco Prestige 42
Texaco Multifak 2
Texaco Regal AFB-2*

*Preferred lubricant, contains rust and oxidation inhibitors.

ELECTRICAL SHOCK HAZARD

Failure to follow this warning could cause personal injury
or death.

Before performing service or maintenance operations on
unit, always turn off main power switch to unit and install
lockout tag. Unit may have more than one power switch.

Fig. 19 — Fan Shaft, Bearings, and Fan Wheel (Typical)

20

Centering Fan Wheel — If fan and fan shaft assembly

are not properly centered, blades may scrape against the blower
side scroll plate or may create an objectionable whistling noise.
It may be necessary to adjust individual fan wheels or move en­tire fan shaft. See the following two sections.

Fan Shaft Position Adjustment — Loosen

setscrew or locking collar of each fan shaft bearing. Slide shaft
into correct position and replace locking collar (Fig. 20). To
replace locking collar, push collar up against inner face of
bearing. Turn collar in direction of fan rotation until tight, and
tighten setscrew. Tightening locking collar in direction of fan
rotation results in further tightening of collar should setscrew
work itself loose.

Individual Fan Wheel Adjustment — Loosen the

2 locking bolts holding fan wheel hub to shaft. See Fig. 19.
Position fan wheel in center of the fan housing and tighten
locking bolts. Clearance between wheel and housing should be
the same on both sides.

Fan Belts — Motor mounting plate and motor support

angles are slotted to permit both vertical and horizontal
adjustment. Adjust belt(s) for correct deflection by loosening
motor plate mounting bolts, moving motor/plate assembly
forward or back, and retightening bolts. Press down on belt
with one finger midway between fan and motor pulleys to
check deflection. For units with motor sizes up to and
including 3.7 Hp (2.76 kW), correct deflection is
(4.8 mm). For larger motor sizes, correct deflection is
(3.2 mm). See Fig.

21.

3

/16-in.

1

/8-in.

If complete belt replacement is required during servicing,
loosen the motor plate mounting bolts (Fig. 21), move motor/
plate assembly towards fan pulley, and pull belt(s) off pulleys.
Reverse the procedure with new bolts and readjust deflection.

Fan Rotation — Correct fan rotation with respect to fan

outlet is shown in Fig. 22.
To reverse the direction of rotation of a 3-phase fan motor,

reverse any 2 of the power leads. Refer to the connection
diagram on the inside of motor terminal box cover for proper
reversing procedure of single-phase motor.

Fig. 20 — Fan Shaft Bearing

Fig. 21 — Fan Motor Mounting

21

Fig. 22 — Fan Rotation

Fan Pulley Alignment — Align as follows:

1. Loosen setscrews on pulleys.

2. Align pulleys visually and tighten setscrews on fan pulley
to lock it in place.

3. Use the methods shown in Fig. 23 to check proper pulley
alignment.

4. If pulleys are not in correct alignment, loosen the motor
holddown bolts and slide the motor axially until the
pulleys are aligned.

5. Tighten motor holddown bolts.

Pulley and Drive Adjustment — To obtain desired

fan speed, refer to the fan motor and drive data in Tables
8A-11D and adjust fan motor pulley as follows:

1. Remove belt from fan motor pulley after loosening motor
from motor base.

2. Loosen setscrew in moveable flange of pulley. Screw
moveable flange toward fixed flange to increase the fan
speed and away from fixed flange to reduce speed.
Before tightening setscrew, make certain that setscrew is
over nearest flat surface of pulley hub (Fig. 23).

UNIT OPERATION HAZARD

Failure to follow this caution could cause equipment
damage.

Increasing fan speed produces a greater load on motor. Do
not exceed rated capacity of motor.

Fig. 23 — Fan Pulley Adjustments

Return-Air Filters — Refer to Replacing Filters section

for filter accessibility and removal. Replace with clean filters of
the sizes listed in Tables 1A-1D.

Coil Removal — Remove unit panels and corner posts as

required. Disconnect coil connections and remove fastening
screws. Remove coil through end or side sections of unit.

Cleaning Cooling Coil — Remove return-air filters.

Remove any heavy dirt that may have accumulated on under­side of coil. Coil can be cleaned more easily with a stiff brush,
vacuum cleaner, or compressed air when coil is dry. If coil is
wet or if water is to be used for cleaning, guard against splash­ing water on electrical components or damaging surrounding
area. Clean coil baffles as applicable and check for tight fit to
be sure air does not bypass coil.

Cleaning Insulation — The insulation contains an im-

mobilized antimicrobial agent that helps prevent the growth of
bacteria and fungi. Clean the inner surface of the insulation
according to the separate maintenance instructions shipped
with the unit.

Condensate Drains — Keep condensate drains free of

dirt and foreign matter.

22

Replacing Filters — Filters can be removed and in-

FILTER
RETAINE
CLIP

SLIDE

stalled from either side of the unit. Install new filters in units
that have one fan as follows:

1. Remove the side access panel (retain screws).

2. Remove the filter retainer clip (see Fig. 24).

3. Remove old filters by lifting and tilting them out of the
filter track. See Fig. 14 and 25.

4. Reverse the procedure to install new filters.

To install new filters in larger units that have 2 fans, follow the
preceding steps, but use the factory-supplied filter hook to slide
filters within reach for removal. The filter hook is shipped in­side the unit in the filter track.

UNIT OPERATION HAZARD

Failure to follow this caution could cause equipment
damage.
Do not operate unit without air filters.

Fig. 25 — Filter Removal/Replacement

Fig. 24 — Remove Filter Retainer Clip

23

Table 8A — Fan Motor Data, Standard Motor — English

UNIT

524J*07A
524J*07H

524J*08A
524J*08H

524J*12A
524J*12H

524J*14A 524J*16A

208/230-1-60

Speed (rpm) 1725 1725 — — —
Hp 1.32.4———
Frame (NEMA) 56Y 56Y — — —
Shaft Dia (in.)

5

/

8

5

/

8

———

208/230-3-60 and 460-3-60

Speed (rpm) 1725 1725 1725 1725 1725
Hp 2.4 2.4 2.4 2.9 3.7
Frame (NEMA) 56Y 56Y 56Y 56Y 56Y
Shaft Dia (in.)

5

/

8

5

/

8

5

/

8

7

/

8

7

/

8

575-3-60

Speed (rpm) 1725 1725 1725 1725 1725
Hp 1.0 2.0 2.0 3.0 3.0
Frame (NEMA) 56 56HZ 56HZ 56HZ 56HZ
Shaft Dia (in.)

5

/

8

7

/

8

7

/

8

7

/

8

7

/

8

LEGEND

NEMA — National Electrical Manufacturers Association

Table 8B — Fan Motor Data, Alternate Motor — English

UNIT

524J*07A
524J*07H

208/230-1-60

Speed (rpm) 1725 1725 — — —
Hp 2.42.4———
Frame (NEMA) 56Y 56Y — — —

5

Shaft Dia (in.)

/

8

208/230-3-60 and 460-3-60

Speed (rpm) 1725 1725 1725 1725 1725
Hp 2.9 2.9 3.7 3.7 5.0
Frame (NEMA) 56Y 56Y Y56Y Y56Y S184T

7

Shaft Dia (in.)

/

8

575-3-60

Speed (rpm) 1725 1725 1725 1745 1745
Hp 2.0 3.0 3.0 5.0 5.0
Frame (NEMA) 56HZ 56HZ 56HZ 184T 184T

7

Shaft Dia (in.)

LEGEND
NEMA — National Electrical Manufacturers Association

/

8

524J*08A
524J*08H

5

/

8

7

/

8

7

/

8

524J*12A
524J*12H

524J*14A 524J*16A

———

7

/

8

7

/

8

7

11/

/

8

8

11/

11/

8

8

24

Table 8C — Fan Motor Data, Standard Motor — SI

UNIT

208/230-1-60

Speed (r/s) 28.75 28.75 — — —
Shaft kW 0.97 1.79 — — —
Frame (NEMA) 56Y 56Y — — —
Shaft Dia (mm) 15.9 15.9 — — —

208/230-3-60 and 460-3-60

Speed (r/s) 28.75 28.75 28.75 28.75 28.75
Shaft kW 1.79 1.79 1.79 2.16 2.76
Frame (NEMA) 56Y 56Y 56Y 56Y 56Y
Shaft Dia (mm) 15.9 15.9 15.9 22.2 22.2

575-3-60

Speed (r/s) 28.75 28.75 28.75 28.75 28.75
Shaft kW 0.7461.491.492.242.24
Frame (NEMA) 56 56HZ 56HZ 56HZ 56HZ
Shaft Dia (mm) 15.9 22.2 22.2 22.2 22.2

LEGEND

NEMA — National Electrical Manufacturers Association

524J*07A
524J*07H

524J*08A
524J*08H

524J*12A
524J*12H

524J*14A 524J*16A

Table 8D — Fan Motor Data, Alternate Motor — SI

UNIT

208/230-1-60

Speed (r/s) 28.75 28.75 — — —
Shaft kW 1.79 1.79 — — —
Frame (NEMA) 56Y 56Y — — —
Shaft Dia (mm) 15.9 15.9 — — —

208/230-3-60 and 460-3-60

Speed (r/s) 28.75 28.75 28.75 28.75 29.08
Shaft kW 2.16 2.16 2.76 2.76 3.73
Frame (NEMA) 56Y 56Y Y56Y Y56Y S184T
Shaft Dia (mm) 22.2 22.2 22.2 22.2 28.6

575-3-60

Speed (r/s) 28.75 28.75 28.75 29.08 29.08
Shaft kW 1.49 2.24 2.24 3.73 3.73
Frame (NEMA) 56HZ 56HZ 56HZ 184T 184T
Shaft Dia (mm) 22.2 22.2 22.2 28.6 28.6

LEGEND

NEMA — National Electrical Manufacturers Association

524J*07A
524J*07H

524J*08A
524J*08H

524J*12A
524J*12H

524J*14A 524J*16A

25

Table 9A — Standard Drive Data, 60 Hz — English

UNIT

524J*07A
524J*07H

524J*08A
524J*08H

524J*12A
524J*12H

524J*14A 524J*16A

MOTOR DRIVE

Motor Pulley Pitch Diameter (in.) 2.4-3.4 2.8-3.8 3.4-4.4 2.8-3.8 2.8-3.8
Pulley Factory Setting

Full Turns Open

2.5 2.5 2.5 2.5 2.5

FAN DRIVE

Pulley Pitch Dia (in.) 8.8 8.8 8.8 9.0 9.0
Pulley Bore (in.) 1111

7

/

16

17/

Belt No. — Section 1—A 1—A 1—A 1—A 1—A
Belt Pitch (in.) 40.3 41.3 42.3 42.3 42.3

FAN SPEEDS (rpm)

Factory Setting 568 647 764 632 632
Range 470-666 549-745 666-863 537-728 537-728
Max Allowable Speed (rpm) 1200 1200 1200 1200 1200

1

Change per
Moveable Motor Pulley

/2 Tur n of

19.6 19.6 19.7 19.1 19.1

Flange

MAX FULL TURNS FROM
CLOSED POSITION

SHAFTS CENTER DISTANCE (in.)

55555

10.44-

12.32

10.44-

12.32

10.44-

12.32

10.44-

12.32

Table 9B — Medium-Static Drive Data, 60 Hz — English

16

10.44-

12.32

UNIT

524J*07A
524J*07H

524J*08A
524J*08H

524J*12A
524J*12H

524J*14A 524J*16A

MOTOR DRIVE

Motor Pulley Pitch Diameter (in.) 3.4-4.4 3.4-4.4 3.4-4.4 3.4-4.4 3.7-4.7
Pulley Factory Setting

Full Turns Open

2.5 2.5 2.5 2.5 3.0

FAN DRIVE

Pulley Pitch Dia (in.) 8.8 8.0 8.0 8.2 8.6

7

Pulley Bore (in.) 1111

/

16

17/

Belt No. — Section 1—A 1—A 1—A 1—A 1—B
Belt Pitch (in.) 42.3 40.3 40.3 41.3 41.8

FAN SPEEDS (rpm)

Factory Setting 764 841 841 820 842
Range 666-863 733-949 733-949 715-926 742-943
Max Allowable Speed (rpm) 1200 1200 1200 1200 1200

1

Change per
Moveable Motor Pulley
Flange

MAX FULL TURNS FROM
CLOSED POSITION

SHAFTS CENTER DISTANCE (in.)

/2 Tur n of

19.7 21.6 21.6 21.1 16.7

55556

10.44-

12.32

10.44-

12.32

10.44-

12.32

10.44-

12.32

16

10.44-

12.32

26

Table 9C — High-Static Drive Data, 60 Hz — English

UNIT

524J*07A
524J*07H

524J*08A
524J*08H

524J*12A
524J*12H

524J*14A 524J*16A

MOTOR DRIVE

Motor Pulley Pitch Diameter (in.) 3.4-4.4 3.4-4.4 3.4-4.4 3.7-4.7 4.3-5.3
Pulley Factory Setting

Full Turns Open

2.5 2.5 2.5 3.0 3.0

FAN DRIVE

Pulley Pitch Dia (in.) 7.0 6.0
Pulley Bore (in.) 1111

†

6.0 7.4 7.9

7

/

16

17/

16

Belt No. — Section 1—A 1—A 1—A 1—B 1—B
Belt Pitch (in.) 41.337.337.339.839.8

FAN SPEEDS (rpm)

Factory Setting 961 1121 1121 979 1060

Range

838-

1084

978-

1200

†‡

978-

1200

‡

873-

1096

950­1171

Max Allowable Speed (rpm) 1200 1200 1200 1200 1200

1

Change per
Moveable Motor Pulley
Flange

MAX FULL TURNS FROM
CLOSED POSITION

SHAFTS CENTER DISTANCE (in.)

†

Values for 3-phase motor shown. For single-phase motor, pulley pitch diameter is 7 in. and
resulting fan speed is 837-1096 rpm.

‡

It is possible to adjust drive so that fan speed exceeds maximum allowable. DO NOT exceed 1200 rpm.

** 575-v unit has a center distance of 9.16-10.99.

/2 Tur n of

24.628.728.719.418.4

55566

10.44-

12.32

10.44-

12.32

10.44-

12.32

10.44-

12.32**

9.16-

10.99

Table 9D — Standard Drive Data, 60 Hz — SI

UNIT

524J*07A
524J*07H

MOTOR DRIVE

Motor Pulley Pitch Diameter (mm)

Pulley Factory Setting
Full Turns Open

61.0-

86.4

2.5 2.5 2.5 2.5 2.5

FAN DRIVE

Pulley Pitch Dia (mm) 224 224 224 229 229
Pulley Bore (mm) 25.425.425.436.536.5
Belt No. — Section 1—A 1—A 1—A 1—A 1—A
Belt Pitch (mm) 1024 1049 1074 1074 1074

FAN SPEEDS (r/s)

Factory Setting 9.5 10.8 12.7 10.5 10.5
Range 7.8-11.1 9.2-12.4 11.1-14.4 9.0-12.1 9.0-12.1
Max Allowable Speed (r/s) 20.020.020.020.020.0

1

Change per
Moveable Motor Pulley

/2Tur n of

0.327 0.327 0.328 0.318 0.318

Flange

MAX FULL TURNS FROM
CLOSED POSITION

55555

SHAFTS CENTER DISTANCE (mm) 265-313 265-313 265-313 265-313 265-313

524J*08A
524J*08H

71.1-

96.5

524J*12A
524J*12H

86.4-

111. 8

524J*14A 524J*16A

71.1-

96.5

71.1-

96.5

27

Table 9E — Medium-Static Drive Data, 60 Hz — SI

UNIT

524J*07A
524J*07H

524J*08A
524J*08H

524J*12A
524J*12H

524J*14A 524J*16A

MOTOR DRIVE

Motor Pulley Pitch Diameter (mm)

Pulley Factory Setting
Full Turns Open

86.4-

111. 8

2.5 2.5 2.5 2.5 3.0

86.4-

111. 8

86.4-

111. 8

86.4-

111. 8

94.0-

119.4

FAN DRIVE

Pulley Pitch Dia (mm) 224 203 203 208 218
Pulley Bore (mm) 25.4 25.4 25.4 36.5 36.5
Belt No. — Section 1—A 1—A 1—A 1—A 1—B
Belt Pitch (mm) 1074 1024 1024 1049 1062

FAN SPEEDS (r/s)

Factory Setting 12.7 14.0 14.0 13.7 14.0
Range 11.1-14.4 12.2-15.8 12.2-15.8 11.9-15.4 12.4-15.7
Max Allowable Speed (r/s) 20.0 20.0 20.0 20.0 20.0

1

Change per
Moveable Motor Pulley
Flange

MAX FULL TURNS FROM
CLOSED POSITION

/2 Tur n of

0.328 0.360 0.360 0.352 0.278

55556

SHAFTS CENTER DISTANCE (mm) 265-313 265-313 265-313 265-313 265-313

Table 9F — High-Static Drive Data, 60 Hz — SI

UNIT

524J*07A
524J*07H

524J*08A
524J*08H

524J*12A
524J*12H

524J*14A 524J*16A

MOTOR DRIVE

Motor Pulley Pitch Diameter (mm)

Pulley Factory Setting
Full Turns Open

86.4-

111. 8

2.5 2.5 2.5 3.0 3.0

86.4-

111. 8

86.4-

111. 8

94.0-

119 .4

109.2-

134.6

FAN DRIVE

Pulley Pitch Dia (mm) 178 152

†

152 188 201

Pulley Bore (mm) 25.4 25.4 25.4 36.5 36.5
Belt No. — Section 1—A 1—A 1—A 1—B 1—B
Belt Pitch (mm) 1049 947 947 1011 1011

FAN SPEEDS (r/s)

Factory Setting 16.0 18.7 18.7 16.3 17.7

Range

14.0-

18.1

16.3-

20.0

†‡

16.3-

20.0

‡

14.4-

18.3

15.8-

19.5

Max Allowable Speed (r/s) 20.0 20.0 20.0 20.0 20.0

1

Change per
Moveable Motor Pulley

/2 Tur n of

0.410 0.478 0.478 0.323 0.307

Flange

MAX FULL TURNS FROM
CLOSED POSITION

55566

SHAFTS CENTER DISTANCE (mm) 265-313 265-313 265-313 265-313** 232-279

†

Values for 3-phase motor shown. For single-phase motor, pulley pitch diameter is 178 mm
and resulting fan speed is 14.0-18.3 r/s.

‡

It is possible to adjust drive so that fan speed exceeds maximum allowable. DO NOT exceed 20 r/s.

** 575-v unit has a center distance of 233-279.

28

Table 10A — 524J Standard Fan Performance Data —

0.0-2.4 in. wg External Static Pressure — English

UNIT

524J*

07A
07H

08A
08H

12A
12H

14A

16A

AIRFLOW

(Cfm)

1,800 399 0.19 454 0.24 548 0.35 634 0.47 713 0.60 785 0.74 850 0.89
2,100 446 0.28 497 0.34 583 0.46 660 0.59 733 0.73 802 0.88 867 1.05
2,400 498 0.40 541 0.47 622 0.60 693 0.74 760 0.89 824 1.05 885 1.22
2,700 544 0.55 588 0.63 663 0.78 730 0.93 792 1.09 851 1.26 909 1.44
3,000 594 0.73 635 0.82 707 0.99 770 1.15 828 1.32 883 1.50 937 1.69

2,250 273 0.08 493 0.37 580 0.49 656 0.62 727 0.76 794 0.92 858 1.08
2,600 322 0.15 540 0.52 622 0.66 693 0.81 757 0.96 819 1.12 878 1.29
3,000 552 0.65 595 0.73 673 0.91 740 1.07 800 1.24 856 1.41 910 1.60
3,400 615 0.91 653 1.01 726 1.21 789 1.40 846 1.59 899 1.78 950 1.97
3,750 671 1.20 706 1.31 773 1.53 834 1.74 889 1.95 940 2.16 988 2.37

3,000 399 0.29 573 0.69 654 0.86 722 1.03 784 1.19 841 1.37 896 1.55
3,500 604 0.92 641 1.02 714 1.22 780 1.42 838 1.61 892 1.81 942 2.01
4,000 680 1.33 713 1.45 778 1.68 839 1.91 896 2.14 947 2.36 995 2.58
4,500 756 1.86 787 1.99 845 2.26 901 2.52 955 2.78 1005 3.03 1051 3.28
5,000 834 2.51 861 2.67 914 2.96 966 3.25 1016 3.54 1064 3.82 1109 4.11

3,750 394 0.40 453 0.52 558 0.80 643 1.10 717 1.39 785 1.71 848 2.04
4,300 436 0.57 487 0.70 586 1.00 670 1.34 742 1.67 806 2.01 867 2.36
5,000 492 0.86 535 0.99 623 1.31 704 1.69 775 2.08 838 2.47 896 2.86
5,700 550 1.23 587 1.37 664 1.71 740 2.11 809 2.55 872 2.99 929 3.43
6,250 596 1.59 630 1.74 700 2.09 770 2.51 837 2.97 899 3.45 955 3.94

4,500 428 0.59 475 0.70 570 0.99 656 1.33 730 1.68 796 2.02 856 2.38
5,300 488 0.92 528 1.04 609 1.34 689 1.71 762 2.11 827 2.51 886 2.92
6,000 542 1.29 578 1.43 649 1.74 721 2.11 791 2.55 855 3.00 914 3.46
6,800 604 1.83 637 1.99 700 2.32 763 2.70 826 3.15 888 3.64 946 4.15
7,500 660 2.42 690 2.59 747 2.95 804 3.34 861 3.79 919 4.29 975 4.83

0.0 0.2 0.4 0.6 0.8 1.0 1.2

Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp

EXTERNAL STATIC PRESSURE (in. wg)

See Legend and Notes on page 33.

UNIT

524J*

07A
07H

08A
08H

12A
12H

14A

16A

AIRFLOW

(Cfm)

1,800 910 1.04 965 1.20 1016 1.36 1065 1.52 1111 1.69 1155 1.86
2,100 927 1.21 983 1.38 1035 1.56 1084 1.74 1131 1.92 1175 2.11
2,400 944 1.41 999 1.59 1052 1.78 1101 1.98 1149 2.18 1193 2.38
2,700 964 1.63 1018 1.82 1069 2.03 1118 2.24 1165 2.45 — —
3,000 989 1.89 1039 2.10 1089 2.31 1136 2.53 1183 2.76 — —

2,250 918 1.26 975 1.43 1029 1.62 1079 1.80 1126 1.99 1172 2.18
2,600 936 1.48 991 1.67 1044 1.87 1094 2.07 1142 2.28 1188 2.49
3,000 963 1.79 1014 1.99 1064 2.20 1113 2.42 1159 2.64 — —
3,400 998 2.18 1045 2.39 1092 2.61 1137 2.83 1182 3.07 — —
3,750 1034 2.58 1078 2.80 1122 3.03 1164 3.27 — — — —

3,000 949 1.74 1000 1.93 1050 2.14 1099 2.36 1147 2.58 1192 2.81
3,500 990 2.21 1037 2.42 1083 2.64 1128 2.86 1172 3.10 — —
4,000 1040 2.80 1084 3.03 1126 3.26 1167 3.50 — — — —
4,500 1094 3.53 1136 3.78 1176 4.03 — —————
5,000 11514.3911914.66————————

3,750 909 2.37 968 2.74 1026 3.12 1080 3.51 1131 3.92 1181 4.32
4,300 925 2.73 980 3.11 1034 3.52 1084 3.92 1135 4.35 1184 4.78
5,000 950 3.26 1002 3.67 1052 4.09 1101 4.53 1148 4.98 1190 5.44
5,700 981 3.88 1031 4.33 1079 4.79 1125 5.25 1169 5.73 — —
6,250 1007 4.42 1057 4.91 1103 5.40 1148 5.90 1191 6.40 — —

4,500 912 2.75 967 3.13 1019 3.52 1070 3.92 1120 4.35 1168 4.79
5,300 940 3.33 992 3.75 1041 4.18 1088 4.61 1134 5.06 1179 5.52
6,000 968 3.92 1018 4.38 1066 4.85 1112 5.32 1156 5.80 1198 6.29
6,800 1000 4.67 1050 5.19 1097 5.71 1142 6.23 1185 6.76 — —
7,500 1028 5.39 1078 5.97 1125 6.54 1170 7.11 — — — —

Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp

Table 10A — 524J Standard Fan Performance Data —

0.0-2.4 in. wg External Static Pressure — English (cont)

EXTERNAL STATIC PRESSURE (in. wg)

1.4 1.6 1.8 2.0 2.2 2.4

See Legend and Notes on page 33.

29

Table 10B — 524J Standard Fan Performance Data —

0-600 kPa External Static Pressure — SI

UNIT

524J*

07A
07H

08A
08H

12A
12H

14A

16A

AIRFLOW

(L/s)

850 6.64 0.14 7.56 0.18 9.13 0.26 10.56 0.35 11.88 0.45 13.08 0.55 14.16 0.66

990 7.73 0.21 8.28 0.25 9.71 0.34 11.00 0.44 12.22 0.54 13.37 0.66 14.44 0.78
1130 8.30 0.30 9.02 0.35 10.36 0.45 11.55 0.55 12.67 0.66 13.73 0.78 14.76 0.91
1270 9.06 0.41 9.79 0.47 11.06 0.58 12.17 0.69 13.20 0.81 14.19 0.94 15.14 1.07
1420 9.91 0.55 10.58 0.61 11.78 0.74 12.83 0.86 13.80 0.99 14.72 1.12 15.61 1.26

1060 4.55 0.06 8.21 0.27 9.67 0.37 10.93 0.46 12.11 0.57 13.23 0.68 14.30 0.81
1230 5.37 0.11 8.99 0.38 10.37 0.49 11.55 0.60 12.62 0.71 13.65 0.84 14.64 0.96
1420 9.21 0.48 9.92 0.55 11.22 0.67 12.33 0.80 13.33 0.92 14.27 1.05 15.17 1.19
1600 10.25 0.68 10.89 0.75 12.09 0.90 13.15 1.04 14.10 1.18 14.99 1.33 15.83 1.47
1770 11.18 0.90 11.76 0.98 12.88 1.14 13.90 1.30 14.82 1.45 15.67 1.61 16.46 1.77

1420 6.65 0.22 9.55 0.51 10.89 0.64 12.04 0.77 13.06 0.89 14.02 1.02 14.93 1.15
1650 10.06 0.68 10.69 0.76 11.90 0.91 13.00 1.06 13.97 1.20 14.86 1.35 15.70 1.50
1890 11.33 0.99 11.88 1.08 12.96 1.25 13.99 1.43 14.93 1.59 15.78 1.76 16.58 1.92
2120 12.61 1.38 13.11 1.49 14.08 1.68 15.02 1.88 15.92 2.07 16.74 2.26 17.51 2.44
2360 13.90 1.87 14.36 1.99 15.23 2.21 16.10 2.42 16.94 2.64 17.73 2.85 18.48 3.06

1770 6.57 0.30 7.54 0.39 9.31 0.60 10.72 0.82 11.95 1.04 13.09 1.27 14.13 1.52
2030 7.27 0.43 8.11 0.52 9.76 0.75 11.16 1.00 12.36 1.25 13.44 1.50 14.45 1.76
2360 8.20 0.64 8.92 0.74 10.38 0.98 11.73 1.26 12.91 1.55 13.97 1.84 14.93 2.13
2690 9.16 0.92 9.79 1.02 11.07 1.27 12.33 1.58 13.48 1.90 14.53 2.23 15.48 2.56
2950 9.93 1.18 10.50 1.30 11.66 1.56 12.83 1.87 13.95 2.22 14.98 2.58 15.92 2.94

2120 7.13 0.44 7.91 0.52 9.50 0.74 10.94 0.99 12.17 1.25 13.26 1.51 14.26 1.77
2500 8.13 0.68 8.80 0.78 10.15 1.00 11.48 1.27 12.70 1.57 13.78 1.87 14.76 2.18
2830 9.03 0.96 9.63 1.07 10.81 1.30 12.01 1.58 13.18 1.90 14.25 2.24 15.23 2.58
3210 10.07 1.37 10.62 1.48 11.66 1.73 12.71 2.01 13.77 2.35 14.80 2.71 15.76 3.09
3540 10.99 1.81 11.50 1.93 12.45 2.20 13.40 2.49 14.35 2.83 15.31 3.20 16.24 3.60

0 50 100 150 200 250 300

r/skWr/skWr/skWr/skWr/skWr/skWr/skW

EXTERNAL STATIC PRESSURE (kPa)

See Legend and Notes on page 33.

UNIT

524J*

07A
07H

08A
08H

12A
12H

14A

16A

AIRFLOW

(L/s)

850 15.16 0.78 16.08 0.89 16.94 1.01 17.74 1.13 18.51 1.26 19.25 1.39

990 15.44 0.90 16.38 1.03 17.25 1.16 18.07 1.30 18.84 1.43 19.58 1.57
1130 15.73 1.05 16.65 1.19 17.53 1.33 18.36 1.48 19.14 1.62 19.89 1.77
1270 16.07 1.21 16.96 1.36 17.82 1.51 18.64 1.67 19.42 1.83 — —
1420 16.48 1.41 17.32 1.56 18.14 1.72 18.94 1.89 19.71 2.06 — —

1060 15.31 0.94 16.25 1.07 17.14 1.20 17.98 1.34 18.77 1.48 19.53 1.63
1230 15.60 1.10 16.51 1.24 17.39 1.39 18.23 1.54 19.03 1.70 19.80 1.86
1420 16.05 1.33 16.90 1.48 17.74 1.64 18.54 1.80 19.32 1.97 — —
1600 16.64 1.62 17.42 1.78 18.20 1.94 18.95 2.11 19.69 2.29 — —
1770 17.23 1.93 17.97 2.09 18.70 2.26 19.41 2.44 — — — —

1420 15.81 1.29 16.67 1.44 17.51 1.60 18.32 1.76 19.11 1.92 19.87 2.09
1650 16.51 1.65 17.29 1.80 18.05 1.97 18.80 2.13 19.53 2.31 — —
1890 17.34 2.09 18.06 2.26 18.77 2.43 19.45 2.61 — — — —
2120 18.24 2.63 18.93 2.82 19.59 3.00 — — — — — —
2360 19.18 3.27 19.85 3.48 — — — — — — — —

1770 15.15 1.77 16.13 2.04 17.10 2.33 18.00 2.62 18.85 2.92 19.68 3.22
2030 15.41 2.04 16.34 2.32 17.24 2.62 18.07 2.92 18.92 3.24 19.73 3.56
2360 15.84 2.43 16.70 2.74 17.54 3.05 18.35 3.38 19.14 3.71 19.83 4.06
2690 16.36 2.89 17.19 3.23 17.98 3.57 18.75 3.92 19.49 4.27 — —
2950 16.79 3.30 17.61 3.66 18.39 4.03 19.13 4.40 19.84 4.77 — —

2120 15.20 2.05 16.12 2.33 16.98 2.62 17.83 2.92 18.67 3.24 19.47 3.57
2500 15.67 2.49 16.53 2.80 17.35 3.12 18.13 3.44 18.90 3.77 19.65 4.12
2830 16.13 2.92 16.97 3.27 17.77 3.62 18.53 3.97 19.26 4.33 19.97 4.69
3210 16.66 3.48 17.50 3.87 18.29 4.26 19.03 4.65 19.75 5.04 — —
3540 17.13 4.02 17.97 4.45 18.75 4.88 19.50 5.30 — — — —

r/skWr/skWr/skWr/skWr/skWr/skW

Table 10B — 524J Standard Fan Performance Data —

0-600 kPa External Static Pressure — SI (cont)

EXTERNAL STATIC PRESSURE (kPa)

350 400 450 500 550 600

See Legend and Notes on page 33.

30

Table 10C — 524J High-Capacity Fan Performance Data —

0.0-2.4 in. wg External Static Pressure — English

UNIT

524J*

07A
07H

08A
08H

12A
12H

14A

16A

AIRFLOW

(Cfm)

1,800 419 0.21 471 0.26 564 0.37 649 0.49 727 0.63 797 0.77 862 0.92
2,100 471 0.31 519 0.37 602 0.49 679 0.62 751 0.77 819 0.92 882 1.09
2,400 524 0.44 568 0.51 645 0.64 715 0.79 781 0.94 844 1.11 905 1.28
2,700 578 0.61 619 0.69 690 0.84 755 0.99 816 1.15 875 1.33 932 1.51
3,000 633 0.81 671 0.90 738 1.07 799 1.24 856 1.41 910 1.60 963 1.79

2,250 290 0.10 510 0.39 594 0.51 669 0.65 739 0.79 806 0.95 870 1.12
2,600 349 0.19 561 0.55 640 0.70 709 0.84 773 1.00 834 1.16 893 1.34
3,000 579 0.70 621 0.79 695 0.96 759 1.12 818 1.30 874 1.47 928 1.66
3,400 646 0.99 683 1.09 752 1.29 813 1.48 869 1.67 920 1.86 970 2.06
3,750 705 1.31 739 1.42 804 1.63 862 1.85 915 2.05 964 2.26 1011 2.48

3,000 421 0.35 592 0.73 670 0.90 737 1.06 797 1.23 854 1.41 908 1.59
3,500 626 0.98 664 1.08 735 1.28 798 1.48 855 1.67 908 1.87 958 2.07
4,000 706 1.42 738 1.54 803 1.77 862 2.00 917 2.23 967 2.45 1014 2.67
4,500 786 1.99 815 2.12 873 2.39 929 2.65 980 2.90 1028 3.16 1073 3.41
5,000 867 2.70 893 2.84 946 3.14 997 3.43 1046 3.72 1092 4.00 1135 4.28

3,750 410 0.43 467 0.55 567 0.83 649 1.12 721 1.41 788 1.72 851 2.05
4,300 455 0.62 504 0.74 599 1.05 679 1.38 748 1.70 811 2.04 871 2.39
5,000 514 0.92 556 1.06 641 1.39 718 1.76 786 2.14 847 2.52 903 2.91
5,700 575 1.32 612 1.47 686 1.82 759 2.23 825 2.66 884 3.09 939 3.52
6,250 624 1.71 657 1.87 725 2.24 793 2.66 856 3.12 915 3.59 969 4.06

4,500 437 0.61 483 0.72 576 1.01 660 1.35 732 1.69 797 2.03 856 2.38
5,300 499 0.95 538 1.07 617 1.37 696 1.74 767 2.13 830 2.53 888 2.94
6,000 555 1.34 590 1.48 659 1.79 730 2.17 798 2.59 860 3.04 918 3.49
6,800 620 1.91 651 2.06 712 2.39 774 2.78 836 3.22 896 3.71 952 4.21
7,500 677 2.52 706 2.69 761 3.04 817 3.44 873 3.89 929 4.39 984 4.93

0.0 0.2 0.4 0.6 0.8 1.0 1.2

Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp

EXTERNAL STATIC PRESSURE (in. wg)

See Legend and Notes on page 33.

UNIT

524J*

07A
07H

08A
08H

12A
12H

14A

16A

AIRFLOW

(Cfm)

1,800 921 1.07 975 1.23 1026 1.39 1074 1.55 1120 1.72 1164 1.90
2,100 942 1.26 997 1.43 1048 1.61 1097 1.79 1143 1.97 1186 2.16
2,400 963 1.47 1017 1.66 1069 1.85 1118 2.05 1164 2.25 — —
2,700 987 1.71 1039 1.91 1090 2.12 1138 2.33 1185 2.55 — —
3,000 1015 1.99 1065 2.20 1113 2.42 1161 2.65 — — — —

2,250 930 1.29 986 1.47 1039 1.65 1089 1.84 1136 2.03 1181 2.22
2,600 950 1.53 1005 1.72 1057 1.92 1107 2.13 1154 2.33 — —
3,000 980 1.86 1031 2.06 1081 2.27 1129 2.49 1175 2.72 — —
3,400 1018 2.26 1065 2.48 1111 2.70 1156 2.93 — — — —
3,750 1057 2.69 1101 2.92 1144 3.15 1186 3.39 — — — —

3,000 961 1.78 1012 1.98 1062 2.19 1111 2.41 1158 2.64 — —
3,500 1005 2.27 1052 2.49 1098 2.71 1142 2.94 1186 3.18 — —
4,000 1058 2.90 1101 3.13 1143 3.36 1184 3.60 — — — —
4,500 1116 3.66 1157 3.91 1196 4.16 — — — — — —
5,000 11764.56——————————

3,750 912 2.39 971 2.76 1028 3.14 1083 3.54 1135 3.95 1185 4.36
4,300 928 2.75 982 3.13 1036 3.53 1087 3.94 1138 4.37 1187 4.81
5,000 956 3.30 1007 3.71 1056 4.13 1104 4.56 1151 5.00 1196 5.46
5,700 990 3.96 1039 4.40 1086 4.85 1130 5.31 1174 5.78 — —
6,250 1019 4.54 1067 5.02 1112 5.50 1156 5.99 1198 6.49 — —

4,500 912 2.75 967 3.12 1019 3.52 1070 3.92 1120 4.35 1168 4.79
5,300 942 3.34 992 3.76 1041 4.18 1088 4.61 1134 5.06 1179 5.52
6,000 971 3.95 1020 4.40 1067 4.86 1112 5.33 1156 5.81 1198 6.29
6,800 1005 4.72 1054 5.23 1101 5.75 1145 6.27 1187 6.79 — —
7,500 1036 5.48 1084 6.04 1131 6.61 1174 7.17 — — — —

Table 10C — 524J High-Capacity Fan Performance Data —

0.0-2.4 in. wg External Static Pressure — English (cont)

EXTERNAL STATIC PRESSURE (in. wg)

1.4 1.6 1.8 2.0 2.2 2.4

Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp

See Legend and Notes on page 33.

31

Table 10D — 524J High-Capacity Fan Performance Data —

0-600 kPa External Static Pressure — SI

UNIT

524J*

07A
07H

08A
08H

12A
12H

14A

16A

AIRFLOW

(L/s)

850 6.98 0.16 7.86 0.19 9.40 0.27 10.81 0.37 12.11 0.47 13.29 0.57 14.36 0.69

990 7.84 0.23 8.64 0.27 10.03 0.36 11.31 0.46 12.52 0.57 13.65 0.69 14.71 0.81
1130 8.73 0.33 9.46 0.38 10.75 0.48 11.91 0.59 13.01 0.70 14.07 0.83 15.08 0.96
1270 9.63 0.45 10.31 0.51 11.51 0.62 12.58 0.74 13.60 0.86 14.58 0.99 15.53 1.13
1420 10.55 0.61 11.18 0.67 12.30 0.80 13.31 0.92 14.26 1.05 15.17 1.19 16.05 1.33

1060 4.83 0.07 8.50 0.29 9.91 0.38 11.15 0.48 12.32 0.59 13.44 0.71 14.50 0.83
1230 5.81 0.14 9.35 0.41 10.67 0.52 11.81 0.63 12.88 0.74 13.90 0.87 14.89 1.00
1420 9.65 0.52 10.35 0.59 11.59 0.71 12.66 0.84 13.64 0.97 14.57 1.10 15.47 1.24
1600 10.76 0.74 11.39 0.81 12.54 0.96 13.55 1.10 14.48 1.24 15.34 1.39 16.17 1.53
1770 11.74 0.97 12.32 1.06 13.40 1.22 14.37 1.38 15.25 1.53 16.07 1.69 16.86 1.85

1420 7.02 0.26 9.86 0.54 11.17 0.67 12.28 0.79 13.29 0.92 14.23 1.05 15.14 1.19
1650 10.44 0.73 11.06 0.80 12.25 0.96 13.31 1.10 14.25 1.25 15.13 1.39 15.96 1.54
1890 11.76 1.06 12.31 1.15 13.38 1.32 14.37 1.49 15.28 1.66 16.11 1.83 16.89 1.99
2120 13.10 1.48 13.59 1.58 14.55 1.78 15.48 1.97 16.34 2.17 17.14 2.35 17.89 2.54
2360 14.45 2.01 14.89 2.12 15.76 2.34 16.62 2.56 17.43 2.77 18.20 2.98 18.92 3.19

1770 6.84 0.32 7.78 0.41 9.46 0.62 10.82 0.83 12.02 1.05 13.13 1.28 14.19 1.53
2030 7.58 0.46 8.40 0.55 9.98 0.78 11.31 1.03 12.47 1.27 13.52 1.52 14.51 1.78
2360 8.57 0.69 9.27 0.79 10.68 1.04 11.96 1.31 13.09 1.60 14.11 1.88 15.05 2.17
2690 9.59 0.99 10.20 1.10 11.44 1.36 12.64 1.66 13.74 1.98 14.74 2.30 15.65 2.63
2950 10.40 1.28 10.96 1.39 12.09 1.67 13.21 1.98 14.27 2.33 15.25 2.68 16.15 3.03

2120 7.28 0.45 8.05 0.54 9.60 0.75 11.00 1.00 12.21 1.26 13.28 1.51 14.27 1.78
2500 8.32 0.71 8.97 0.80 10.29 1.02 11.59 1.30 12.78 1.59 13.84 1.89 14.80 2.19
2830 9.25 1.00 9.83 1.10 10.99 1.33 12.16 1.62 13.29 1.93 14.34 2.27 15.30 2.60
3210 10.33 1.42 10.85 1.54 11.87 1.78 12.90 2.07 13.93 2.40 14.93 2.76 15.87 3.14
3540 11.29 1.88 11.77 2.01 12.69 2.27 13.62 2.56 14.56 2.90 15.49 3.27 16.40 3.67

0 50 100 150 200 250 300

r/skWr/skWr/skWr/skWr/skWr/skWr/skW

EXTERNAL STATIC PRESSURE (kPa)

See Legend and Notes on page 33.

UNIT

524J*

07A
07H

08A
08H

12A
12H

14A

16A

AIRFLOW

(L/s)

r/s kW r/s kW r/s kW r/s kW r/s kW r/s kW

850 15.34 0.80 16.25 0.92 17.10 1.03 17.90 1.16 18.66 1.28 19.39 1.41

850 15.69 0.94 16.61 1.07 17.47 1.20 18.28 1.33 19.04 1.47 19.77 1.61
1130 16.04 1.09 16.95 1.23 17.81 1.38 18.63 1.53 19.40 1.67 — —
1270 16.44 1.27 17.32 1.42 18.17 1.58 18.97 1.74 19.75 1.90 — —
1420 16.91 1.49 17.75 1.64 18.56 1.81 19.34 1.97 — — — —

1060 15.50 0.96 16.43 1.10 17.31 1.23 18.14 1.37 18.93 1.51 19.68 1.66
1230 15.84 1.14 16.75 1.28 17.62 1.43 18.45 1.58 19.24 1.74 — —
1420 16.34 1.38 17.19 1.54 18.01 1.70 18.81 1.86 19.59 2.03 — —
1600 16.97 1.69 17.76 1.85 18.52 2.02 19.27 2.19 — — — —
1770 17.61 2.01 18.35 2.18 19.07 2.35 19.77 2.53 — — — —

1420 16.02 1.33 16.87 1.48 17.71 1.64 18.52 1.80 19.30 1.97 — —
1650 16.76 1.70 17.53 1.85 18.29 2.02 19.04 2.19 19.77 2.37 — —
1890 17.64 2.16 18.35 2.33 19.05 2.51 19.74 2.69 — — — —
2120 18.60 2.73 19.28 2.91 19.93 3.10 — — — — — —
2360 19.613.40——————————

1770 15.21 1.78 16.19 2.06 17.13 2.34 18.04 2.64 18.91 2.94 19.75 3.25
2030 15.46 2.05 16.37 2.33 17.26 2.63 18.12 2.94 18.96 3.26 19.78 3.59
2360 15.94 2.46 16.78 2.77 17.60 3.08 18.40 3.40 19.18 3.73 19.94 4.07
2690 16.51 2.95 17.32 3.28 18.09 3.62 18.84 3.96 19.57 4.31 — —
2950 16.99 3.39 17.78 3.74 18.54 4.10 19.26 4.47 19.96 4.84 — —

2120 15.21 2.05 16.11 2.33 16.98 2.62 17.83 2.93 18.66 3.24 19.47 3.57
2500 15.69 2.49 16.54 2.80 17.35 3.12 18.14 3.44 18.90 3.77 19.64 4.11
2830 16.18 2.94 17.01 3.28 17.79 3.63 18.54 3.97 19.27 4.33 19.97 4.69
3210 16.75 3.52 17.57 3.90 18.34 4.29 19.08 4.67 19.78 5.06 — —
3540 17.26 4.09 18.07 4.50 18.84 4.93 19.57 5.35 — — — —

Table 10D — 524J High-Capacity Fan Performance Data —

0-600 kPa External Static Pressure — SI (cont)

EXTERNAL STATIC PRESSURE (kPa)

350 400 450 500 550 600

See Legend and Notes on page 33.

32

Legend and Notes for Tables 10A and 10C

LEGEND

Bhp — Brake Horsepower Input to Fan
ESP — External Static Pressure

NOTES:

1. Maximum allowable fan speed is 1200 rpm for all sizes.

2. Fan performance is based on deductions for wet coil, clean 2-in.
filters, and unit casing. See table at right for factory-supplied filter
pressure drop.

3. Refer to fan motor and drive tables for additional data.

Legend and Notes for Tables 10B and 10D

LEGEND

ESP — External Static Pressure
NOTES:

1. Maximum allowable fan speed is 20 r/s for all sizes.

2. Fan performance is based on deductions for wet coil, clean
51-mm filters, and unit casing. See table at right for factory-sup­plied filter pressure drop.

3. Refer to fan motor and drive tables for additional data.

FACTORY-SUPPLIED PRESSURE DROP — ENGLISH

UNIT

524J*07A
524J*07H

524J*08A
524J*08H

524J*12A
524J*12H

524J*14A

524J*16A

AIRFLOW

(Cfm)

1,800 0.05
2,400 0.08
3,000 0.11
2,250 0.07
3,000 0.11
3,750 0.15
3,000 0.11
4,000 0.17
5,000 0.23
3,750 0.06
5,000 0.10
6,250 0.13
4,500 0.08
6,000 0.12
7,500 0.17

PRESSURE DROP

(in. wg)

FACTORY-SUPPLIED PRESSURE DROP — SI

UNIT

524J*07A
524J*07H

524J*08A
524J*08H

524J*12A
524J*12H

524J*14A

524J*16A

AIRFLOW

(L/s)

850 13
1150 20
1450 28
1000 17
1400 27
1800 38
1450 28
1900 42
2350 56
1750 15
2350 24
2950 33
2100 20
2800 30
3500 42

PRESSURE DROP

(Pa)

33

Copyright 2009 Bryant Heating & Cooling Systems • 7310 W. Morris St. • Indianapolis, IN 46231 Printed in U.S.A. Edition Date:11/09 Catalog No: II524J-04

Manufacturer reserves the right to change, at any time, specifications and designs without notice and without obligations. Replaces: II524J-02

34

I. PRELIMINARY INFORMATION

START-UP CHECKLIST

(SPLIT SYSTEMS WITH 524J UNITS)

OUTDOOR: MODEL NO. _________________________

SERIAL NO. ___________________________________

ADDITIONAL ACCESSORIES ______________________________________________________________________________

INDOOR: MODEL NO. ___________________________

SERIAL NO. ___________________________________

II. PRE-START-UP

OUTDOOR UNIT

IS THERE ANY SHIPPING DAMAGE? _______________ (Y/N) ____

IF SO, WHERE: _________________________________________________________________________________________

_______________________________________________________________________________________________________

WILL THIS DAMAGE PREVENT UNIT START-UP? (Y/N) _____

CHECK POWER SUPPLY. DOES IT AGREE WITH UNIT? (Y/N) _____

HAS THE GROUND WIRE BEEN CONNECTED? (Y/N) _____

HAS THE CIRCUIT PROTECTION BEEN SIZED AND INSTALLED PROPERLY? (Y/N) _______

ARE THE POWER WIRES TO THE UNIT SIZED AND INSTALLED PROPERLY? (Y/N) _______

HAVE COMPRESSOR HOLDDOWN BOLTS BEEN LOOSENED? (Y/N) _____

CONTROLS

ARE THERMOSTAT(S) AND INDOOR FAN CONTROL WIRING
CONNECTIONS MADE AND CHECKED? (Y/N) _____

ARE ALL WIRING TERMINALS (including main power supply) TIGHT? (Y/N) _____

HAVE OUTDOOR UNIT CRANKCASE HEATERS BEEN ENERGIZED FOR 24 HOURS? (Y/N) ______

INDOOR UNIT

HAS WATER BEEN PLACED IN DRAIN PAN TO CONFIRM PROPER DRAINAGE? (Y/N) _____

ARE PROPER AIR FILTERS IN PLACE? (Y/N) _____

HAVE FAN AND MOTOR PULLEYS BEEN CHECKED FOR PROPER ALIGNMENT? (Y/N) ______

DO THE FAN BELTS HAVE PROPER TENSION? (Y/N) _____

PIPING

524J***A, 524J***H

HAS FOAM SHIPPING BLOCK BEEN REMOVED FROM THE TXV (Thermostatic Expansion Valve)? (Y/N) ______

ARE LIQUID LINE SOLENOID VALVES LOCATED AT THE INDOOR UNIT (524J***A) OR OUTDOOR UNIT (524J***H)
COILS AS REQUIRED? (Y/N) _______

HAVE LEAK CHECKS BEEN MADE AT COMPRESSORS, CONDENSERS, INDOOR COILS,
TXVs (Thermostatic Expansion Valves) SOLENOID VALVES, FILTER DRIERS, AND FUSIBLE PLUGS
WITH A LEAK DETECTOR? (Y/N) _____

LOCATE, REPAIR, AND REPORT ANY LEAKS. _______________________________________________________________

HAVE ALL COMPRESSOR SERVICE VALVES BEEN FULLY OPENED (BACKSEATED) (Y/N) ____

ARE THE COMPRESSOR OIL SIGHT GLASSES SHOWING CORRECT LEVELS? (Y/N) _____

CL-1

CHECK VOLTAGE IMBALANCE

LINE-TO-LINE VOLTS: AB ________ V AC ______ V BC ______ V

(AB + AC + BC)/3 = AVERAGE VOLTAGE = _______ V

MAXIMUM DEVIATION FROM AVERAGE VOLTAGE = _______ V

VOLTAGE IMBALANCE = 100 X (MAX DEVIATION)/(AVERAGE VOLTAGE) = __________ %

IF OVER 2% VOLTAGE IMBALANCE, DO NOT ATTEMPT TO START SYSTEM!
CALL LOCAL POWER COMPANY FOR ASSISTANCE.

III. START-UP

CHECK INDOOR FAN MOTOR SPEED AND RECORD.

AFTER AT LEAST 10 MINUTES RUNNING TIME, RECORD THE FOLLOWING MEASUREMENTS:

OIL PRESSURE
SUCTION PRESSURE
SUCTION LINE TEMP
DISCHARGE PRESSURE
DISCHARGE LINE TEMP
ENTERING OUTDOOR UNIT AIR TEMP
LEAVING OUTDOOR UNIT AIR TEMP
INDOOR UNIT ENTERING AIR DB TEMP
INDOOR UNIT ENTERING AIR WB TEMP
INDOOR UNIT LEAVING AIR DB TEMP
INDOOR UNIT LEAVING AIR WB TEMP

COMPRESSOR AMPS (L1/L2/L3) ____/____/____ ____/____/____

COMP A1 COMP B1

CHECK THE COMPRESSOR OIL LEVEL SIGHT GLASSES, ARE THE SIGHT GLASSES SHOWING
OIL LEVEL AT 1/8 to 1/3 FULL? (Y/N) ______

NOTES:

______________________________________________________________________________________________________
______________________________________________________________________________________________________
______________________________________________________________________________________________________
______________________________________________________________________________________________________
______________________________________________________________________________________________________
______________________________________________________________________________________________________
______________________________________________________________________________________________________
______________________________________________________________________________________________________
______________________________________________________________________________________________________
______________________________________________________________________________________________________
______________________________________________________________________________________________________
______________________________________________________________________________________________________

CUT ALONG DOTTED LINE CUT ALONG DOTTED LINE

Copyright 2009 Bryant Heating & Cooling Systems • 7310 W. Morris St. • Indianapolis, IN 46231 Printed in U.S.A. Edition Date: 11/09 Catalog No: II524J-04

Manufacturer reserves the right to change, at any time, specifications and designs without notice and without obligations. Pg CL-2 Replaces: II524J-02

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