Bryant 764A - 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