Bryant 764A - Manual

Bryant 764A

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Table of Contents:

  • Page 5 – II. RIG AND PLACE UNIT; Ensure that condensate-water disposal methods com-; MAXIMUM ALLOWABLE; Fig. 5 — Unit Leveling Tolerances
  • Page 6 – Table 1 — Physical Data; The design and installation of the duct system must; Fig. 7 — Condensate Connection Details
  • Page 8 – D. Electrical Connections; LEGEND; *Required for electric heater when single-point connection is not; Fig. 12 — Typical Installation; Outdoor Airflow
  • Page 9 – Accessory Electric Heat Wiring; Fig. 13 — Unit Electrical Connection Entry Holes; Field Control Wiring; Fig. 15 — Line Power Connections
  • Page 10 – Table 2 — Electrical Data
  • Page 14 – CARE AND MAINTENANCE; The following steps should be performed by a quali-; NOTE TO EQUIPMENT OWNER:
  • Page 15 – SERVICE; B. Repairing Refrigerant Leaks
  • Page 19 – COOLING TROUBLESHOOTING CHART; SYMPTOM
  • Page 22 – PACKAGED SERVICE TRAINING
Loading the manual

IMPORTANT — READ BEFORE INSTALLING

1. Read and become familiar with these installation in-

structions before installing this unit (Fig. 1). Retain these
instructions for future maintenance and repair.

2. Be sure the installation conforms to all applicable local

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

CONTENTS

Page

SAFETY CONSIDERATIONS

. . . . . . . . . . . . . . . . . . . . . . . 1

INSTALLATION

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-11

I. Locate the Unit

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

II. Rig and Place Unit

. . . . . . . . . . . . . . . . . . . . . . . . . . 5

III. Unit Duct and Field Connections

. . . . . . . . . . . . . . 5

PRE-START-UP

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11,12

START-UP

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12,13

I. Heating Section Start-Up and Adjustments

. . . . 12

II. Cooling Section Start-Up and Adjustments

. . . . 12

III. Indoor Airflow and Airflow Adjustments

. . . . . . . 13

CARE AND MAINTENANCE

. . . . . . . . . . . . . . . . . . . . . . . 14

I. Air Filter

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

II. Evaporator Fan and Motor

. . . . . . . . . . . . . . . . . . 14

SERVICE

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15-18

I. Cleaning

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

II. Evaporator Fan and Motor

. . . . . . . . . . . . . . . . . . 15

III. Condenser Fan

. . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

IV. Electrical Controls and Wiring

. . . . . . . . . . . . . . . 16

V. Indoor Airflow

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

VI. Metering Device Servicing

. . . . . . . . . . . . . . . . . . 16

VII. Liquid Line Strainer

. . . . . . . . . . . . . . . . . . . . . . . . 16

VIII. Refrigerant Charge

. . . . . . . . . . . . . . . . . . . . . . . . . 16

IX. Replacement Parts

. . . . . . . . . . . . . . . . . . . . . . . . . 16

COOLING TROUBLESHOOTING CHART

. . . . . . . . . . . . 19

START-UP CHECKLIST

. . . . . . . . . . . . . . . . . . . . . . . . . . CL-1

SAFETY CONSIDERATIONS

WARNING:

Improper installation, adjustment, alter-

ation, service, maintenance, or use can cause explo-
sion, fire, electric shock, or other occurrences which may
injure you or damage your property. Consult a quali-
fied installer or service agency for information or assis-
tance. The qualified installer or agency must use only
factory-authorized kits or accessories when modifying
this product.

Recognize safety information. This is the safety-alert symbol
(

). When you see this symbol on the unit and in instruc-

tions or manuals, be alert to the potential for personal
injury.

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 indi-
cates 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:

Before performing service or main-

tenance operations on system, turn off main power
switches to unit. Turn off accessory heater power switch
if applicable. Electric shock can cause personal injury.

1. The power supply (volts, phase, and hertz) must corre-

spond to that specified on unit rating plate.

2. The electrical supply provided by the utility must be suf-

ficient to handle load imposed by this unit.

3. Refer to Installation, Locate the Unit section (page 5)

and Fig. 2-4 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 NEC (National Electrical Code) or NFPA
(National Fire Protection Association) 54 TIA-54-84-1.
Refer to provincial and local plumbing or wastewater codes
and other applicable local codes.

5. Approved for outdoor installation on wood flooring or on

class A, B, or C roof covering materials.

INSTALLATION

All units can be connected into existing duct systems that are
sized properly and designed to handle the airflow shown in
the Air Delivery table and Indoor Airflow and Airflow Adjust-
ments section.

NOTE:

When installing any accessory item, see the manu-

facturer ’s installation instructions packaged with the acces-
sory. Use factory-authorized kits or accessories when
modifying this unit.

Fig. 1 — Unit 564A and 764A (Size 036 Shown)

installation, start-up and
service instructions

PACKAGED AIR
CONDITIONERS

564A

Sizes 024-060

764A

Sizes 024-060

Cancels: II 564A-24-1

II 564A-24-2

6/1/96

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Summary

Page 5 - II. RIG AND PLACE UNIT; Ensure that condensate-water disposal methods com-; MAXIMUM ALLOWABLE; Fig. 5 — Unit Leveling Tolerances

I. LOCATE THE UNIT A. Clearance Provide sufficient space for condenser airflow clearance, wir-ing, and servicing unit. See Fig. 2-4. Locate unit where supply-and return-air ducts can be conveniently brought out to unitduct connections. Unit may be placed with duct side as close to buildingas top rem...

Page 6 - Table 1 — Physical Data; The design and installation of the duct system must; Fig. 7 — Condensate Connection Details

Table 1 — Physical Data UNIT 564A AND 764A 024 030 036 042 048 060 OPERATING WEIGHT (lb) 222 236 250 297 310 350 COMPRESSOR TYPE Reciprocating REFRIGERANT R-22 Charge (lb) 2.8 3.9 4.7 4.4 6.1 7.5 REFRIGERANT METERING DEVICE Acutrol™ System CONDENSER COIL Copper Tubes, Aluminum Plate Fins Rows...Fins...

Page 8 - D. Electrical Connections; LEGEND; *Required for electric heater when single-point connection is not; Fig. 12 — Typical Installation; Outdoor Airflow

C. Converting Horizontal Discharge Units to Downflow(Vertical) Discharge WARNING: Before performing service or mainte- nance operations on system, turn off main power to unit.Turn off accessory heater power switch if applicable. Elec-trical shock can cause personal injury. Units are dedicated side-s...

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