Bryant 664B - Manuals - manualsarea.com

Page 2 - SAFETY CONSIDERATIONS; WARNING; INTRODUCTION; Step 1 — Check Equipment; except; Step 3 — Provide Clearances

2 SAFETY CONSIDERATIONS Installation and servicing of this equipment can be hazardous dueto mechanical and electrical components. Only trained and qualified personnel should install, repair, or service this equipment.Untrained personnel can perform basic maintenance functions such as cleaning and re...

Page 3 - UNIT DAMAGE HAZARD; CAUTION; Deep; Step 6 — Connect Condensate Drain; NOTE

3 When designing and installing ductwork, consider the following: UNIT DAMAGE HAZARD Failure to follow this caution may result in damage to unit components.When connecting ductwork to units, do not drill deeper than 3/4 in. (19 mm) in shaded area shown in Fig. 2 or coil may be damaged. CAUTION ! 19....

Page 5 - Table 1 – Physical Data

5 TOP COVER INDOORTHERMOSTAT DISCONNECTPER NEC(UNIT ANDELECTRICHEATER) FROMPOWERSOURCE RETURNAIR POWER ANDLOW-VOLTAGEENTRY COMPOSITERUST-PROOFBASEPAN CONDENSATEDRAINCONNECTION Power Wiring Control Wiring Condenser Airflow Evaporator Airflow A08207 Fig. 6 -- Typical Installation Table 1 – Physical Da...

Page 6 - Table 2 – Minimum Airflow for Safe Electric Heater Operation; Step 7 — Install Electrical Connections; ELECTRICAL SHOCK HAZARD; UNIT COMPONENT DAMAGE HAZARD

6 Table 2 – Minimum Airflow for Safe Electric Heater Operation Unit Size Minimum Airflow (CFM) 5kW 7.5kW 10kW 15kW 20kW 024 500 650 750 -- -- 030 600 800 1050 -- -- 036 600 800 1050 1150 1200 042 600 800 1050 1150 1200 048 600 800 1050 1150 1200 060 600 800 1050 1150 1200 Step 7 — Install Electrical...

Page 8 - Step 1 — Check for Refrigerant Leaks; ments

8 c. Inspect all field-- and factory--wiring connections. Be sure that connections are completed and tight. d. Ensure wires do not touch refrigerant tubing or sharp sheet metal edges. e. Inspect coil fins. If damaged during shipping and handling, carefully straighten fins with a fin comb. 4. Verify ...

Page 9 - Table 3 – Required Subcooling; Step 4 — Indoor Airflow and Airflow Adjust-; : For cooling operation, the recommended airflow is 350; free from obstructions, and adjusted properly.; Failure to follow this warning could result in personal; connector. Insert the wire into the desired tap until it locks into

9 Table 3 – Required Subcooling A08406 Step 4 — Indoor Airflow and Airflow Adjust- ments NOTE : For cooling operation, the recommended airflow is 350 to 450 cfm for each 12,000 Btuh of rated cooling capacity.Table 4 shows dry coil air delivery for horizontal discharge units. Tables 6--8 show pressur...

Page 10 - Step 7 — Sequence of Operation

10 Step 5 — Unit Controls All compressors have the following internal--protection controls.HIGH--PRESSURE RELIEF VALVEThis valve opens when the pressure differential between the low and high side becomes excessive.LOSS OF CHARGE SWITCHLocated on the outdoor liquid line is a low--pressure switch whic...

Page 17 - MAINTENANCE; Step 1 — Air Filter

17 Table 5 – Cooling Charging Chart SUCTION LINE TEMPERATURE ( ° F) Suction Line Pressure (PSIG) OD Temp. ( ° F) 52 54 56 59 61 64 67 70 73 76 79 82 85 89 92 45 51 55 60 64 69 — — — — — — — — — — 55 — — 53 57 62 66 70 — — — — — — — — 65 — — — — 53 57 62 66 71 75 — — — — — 75 — — — — — — — 56 61 66 7...

Page 18 - Step 3 — Indoor Blower and Motor; Table 6 – Wet Coil Pressure Drop

18 Only qualified service personnel should perform maintenance andservice procedures that require unit top removal.Refer to the following top removal procedures: 1. Remove screws on unit top cover surface. (Save all screws.)2. Remove screws on unit top cover flange. (Save all screws.)3. Lift top fro...

Page 19 - UNIT OPERATION HAZARD; TROUBLESHOOTING

19 Step 4 — Outdoor Coil, Indoor Coil, and Condensate Drain Pan Inspect the condenser coil, evaporator coil, and condensate drainpan at least once each year.The coils are easily cleaned when dry; therefore, inspect and clean the coils either before or after each cooling season. Remove allobstruction...

Page 21 - Table 9 – Troubleshooting Chart

21 Table 9 – Troubleshooting Chart SYMPTOM CAUSE REMEDY Compressor and outdoor fan will not start Power failure Call power company Fuse blown or circuit breaker tripped Replace fuse or reset circuit breaker Defective contactor, transformer, control relay, or high--pressure, loss-- of--charge or low-...

Page 22 - I. PRELIMINARY INFORMATION; Discharge Temp

22 START--UP CHECKLIST (REMOVE AND STORE IN JOB FILE) I. PRELIMINARY INFORMATION Model No ............................................................................................................................................................ Serial No ..............................................