Instruction/ maintenance manual of the product 764A Bryant
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IMPORT ANT — READ BEFORE INST ALLING 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.
UNIT 564A/764A ELECTRICAL CHARACTERISTICS UNIT WEIGHT CENTER OF GRA VITY mm [in.] Lb Kg X Y Z 024 208/230-1-60 222 101 355.6 [14.00] 508.0 [20.00] 241.3 [9.50] 030 208/230-1-60 236 107 355.6 [14.00] 508.0 [20.00] 241.3 [9.50] 036 208/230-1-60, 208/230-3-60 250 1 14 355.
UNIT 564A/764A ELECTRICAL CHARACTERISTICS UNIT WEIGHT CENTER OF GRA VITY mm [in.] Lb Kg X Y Z 042 208/230-1-60, 208/230-3-60 297 135 355.6 [14.00] 508.0 [20.00] 304.8 [12.00] 048 208/230-1-60, 208/230-3-60 310 1 14 355.6 [14.00] 508.0 [20.00] 304.8 [12.
UNIT 564A/764A ELECTRICAL CHARACTERISTICS UNIT WEIGHT CENTER OF GRA VITY mm [in.] Lb Kg X Y Z 060 230-1-60, 208/230-3-60, 460-3-60 350 159 355.6 [14.00] 508.0 [20.00] 355.6 [14.00] LEGEND NEC — National Electrical Code REQUIRED CLEARANCES TO COMBUSTIBLE MA TERIAL, mm [in.
I. LOCA TE THE UNIT A. Clearance Provide suf f icient 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 unit duct connections.
T able 1 — Physical Data UNIT 564A AND 764A 024 030 036 042 048 060 OPERA TING 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 T ubes, Aluminum Plate Fins Rows.
Install Flanges for Ductwork Connections (564A/764A060 only) The size 060 units are shipped with flanges which must be field-installed on the unit. T o install unit flanges: 1. Five pieces of flange are shipped on the return air open- ing of the unit.
C. Converting Horizontal Discharge Units to Downflow (V ertical) Discharge W ARNING: Before performing service or mainte- nance operations on system, turn of f main power to unit. T urn off accessory heater power switch if applicable. Elec- trical shock can cause personal injury .
Route thermostat wires through grommet providing a drip loop at the panel. Connect low-voltage leads to the thermo- stat as shown in Fig. 16. The unit transformer supplies 24-v power for complete system including accessory electrical heater . T ransformer is factory wired for 230-v operation.
T able 2 — Electrical Data UNIT 564A/764A NOMINAL VOL T AGE (V -Ph-Hz) VOL T AGE RANGE COMPRESSOR OFM IFM ELECTRIC HEA T POWER SUPPL Y DISCONNECT SIZE Min Max RLA LRA FLA FLA Nominal kW* FLA MCA MOCP FLA LRA 024 208/230-1-60 187 254 10.9 61.0 0.9 2.
Special Procedures for 208-V Operation W ARNING: Make sure that the power supply to the unit is switched OFF before making any wiring changes. Electrical shock can cause personal injury or death. 1. Disconnect the orange transformer-primary lead from the contactor .
Proceed as follows to inspect and prepare the unit for initial start-up: 1. Remove all access panels. 2. Read and follow instructions on all W ARNING, CAU- TION, and INFORMA TION labels attached to, or shipped with, unit. 3. Make the following inspections: a.
C. Unit Controls Compressor High-Pressure Relief V alve — V alve is located in compressor . Relief valve opens at a pressure dif ferential of approximately 450 psi between suction (low side) and discharge (high side) to allow pressure equalization.
CARE AND MAINTENANCE NOTE: The following steps should be performed by a quali- fied service person. W ARNING: Before installing or servicing unit, turn of f main power to system to avoid shock hazard or in- jury from rotating parts. There may be more than one disconnect switch.
SERVICE NOTE: The following steps should be performed by a quali- fied service person. W ARNING: Before installing or servicing unit, turn of f main power to system to avoid shock hazard or in- jury from rotating parts. There may be more than one disconnect switch.
IV . ELECTRICAL CONTROLS AND WIRING Inspect and check the electrical controls and wiring an- nually . Be sure to turn of f all electrical power to the unit. Remove the control, evaporator fan, and compressor compart- ment access panels to locate all the electrical controls and wiring.
Fig. 19 — Cooling Charging Chart — 564A/764A024 Fig. 20 — Cooling Charging Chart 564A/764A030 Fig. 21 — Cooling Charging Chart — 564A/764A036 Fig.
Fig. 23 — Cooling Charging Chart — 564A/764A048 Fig. 24 — Cooling Charging Chart — 564A/764A060 —18—.
COOLING TROUBLESHOOTING CHART SYMPTOM CAUSE REMEDY Compressor and con- denser fan will not start. Power failure Call power company . Fuse blown or circuit breaker tripped Replace fuse or reset circuit breaker . Defective thermostat, contactor , transformer, or control relay Replace component.
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P ACKAGED SERVICE TRAINING Our packaged service training programs provide an excellent way to increase your knowledge of the equipment discussed in this manual. Product programs cover: • Unit Familiarization • Installation Overview • Maintenance • Operating Sequence A large selection of product, theory , and skills programs is available.
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ST ART -UP CHECKLIST (Remove and Store in Job File) I. PRELIMINARY INFORMA TION MODEL NO.: DA TE: SERIAL NO.: TECHNICIAN: II. PRE-ST ART -UP (insert checkmark in box as each item is completed) M VERIF.
An important point after buying a device Bryant 764A (or even before the purchase) is to read its user manual. We should do this for several simple reasons:
If you have not bought Bryant 764A yet, this is a good time to familiarize yourself with the basic data on the product. First of all view first pages of the manual, you can find above. You should find there the most important technical data Bryant 764A - thus you can check whether the hardware meets your expectations. When delving into next pages of the user manual, Bryant 764A you will learn all the available features of the product, as well as information on its operation. The information that you get Bryant 764A will certainly help you make a decision on the purchase.
If you already are a holder of Bryant 764A, but have not read the manual yet, you should do it for the reasons described above. You will learn then if you properly used the available features, and whether you have not made any mistakes, which can shorten the lifetime Bryant 764A.
However, one of the most important roles played by the user manual is to help in solving problems with Bryant 764A. Almost always you will find there Troubleshooting, which are the most frequently occurring failures and malfunctions of the device Bryant 764A along with tips on how to solve them. Even if you fail to solve the problem, the manual will show you a further procedure – contact to the customer service center or the nearest service center
