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installation and
591B, 550A
start-up instructions
552A, 556A
11, 12, 13, 14 SEER
SPLIT-SYSTEM AIR CONDITIONERS
WITH PURON® REFRIGERANT
Cancels: II 550A-18-3 II 550A-18-4
11-03
NOTE: Read the entire instruction manual before starting the
installation.
This symbol → indicates a change since the last issue.
SAFETY CONSIDERATIONS
Improper installation, adjustment, alteration, service, maintenance,
or use can cause explosion, fire, electrical shock, or other
conditions which may cause death, personal
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NOTE: Avoid contact between tubing and structure OUTDOOR WALL INDOOR WALL CAULK LIQUID TUBE A C L B VAPOR TUBE INSULATION THROUGH THE WALL 3 8 ⁄16″ JOIST 3 ⁄8 IN. DIA TIEDOWN KNOCKOUTS HANGER STRAP (2) PLACES (AROUND VAPOR INSULATION IN BASEPAN TUBE ONLY) A97375 VAPOR TUBE DIMENSIONS (IN.) TIEDOWN KNOCKOUT UNIT BASE PAN LOCATIONS DIMENSIONS AB 22-1/2 X 27-1/2 2-13/16 6-15/16 30X33 5-1/16 9-11/16 1″ MIN. Fig. 3—Clearance Requirements LIQUID TUBE clearance on 1 side of unit and 12 in. on all remai
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INSTALLING TXV IN PLACE OF PISTON 10 O'CLOCK 2 O'CLOCK 1. Pump system down to 2 psig and recover refrigerant. SENSING BULB 2. Remove hex nut from piston body. Use backup wrench on fan coils. STRAP 3. Remove and discard factory-installed piston. Be sure teflon seal is in place. 4. Reinstall hex nut. Finger tighten nut plus 1/2 turn. SUCTION TUBE NOTE: If the piston is not removed from the body, TXV will not function properly. 8 O'CLOCK 4 O'CLOCK 7 7 CAUTION: To prevent damage to the unit, u
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TABLE 1—REFRIGERANT CONNECTIONS AND RECOMMENDED LIQUID AND VAPOR TUBE DIAMETERS (IN.) LIQUID VAPOR VAPOR (LONG LINE) UNIT SIZE Connection Diameter Tube Diameter Connection Diameter Tube Diameter Connection Diameter Tube Diameter 018, 024 3/8 3/8 5/8 5/8 5/8 3/4 030, 036 3/8 3/8 3/4 3/4 3/4 7/8 042, 048 3/8 3/8 7/8 7/8 7/8 1-1/8 060 3/8 3/8 7/8 1-1/8 7/8 1-1/8 NOTES: 1. Tube diameters are for lengths up to 50 ft. For tubing lengths greater than 50 ft, consult the Application Guideline and Service
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R - 4 1 0 C. REFRIGERANT TUBING 5000 Connect vapor tube to fitting on outdoor unit vapor service valves. 4500 Connect liquid tube to filter drier. (See Fig. 6 and Table 1.) Use 4000 refrigerant grade tubing. LEAK IN 3500 SYSTEM LIQUID-LINE 3000 FILTER-DRIER 2500 LIQUID 2000 SERVICE VALVE VACUUM TIGHT 1500 TOO WET 1000 TIGHT 500 DRY SYSTEM CONNECTOR TUBE A95424 0 1 23 4 5 67 MINUTES A95424 Fig. 7—Deep Vacuum Graph 5. Repeat this procedure as indicated in Fig. 8. System will then be free of any co
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A. ROUTE GROUND AND POWER WIRES XI. START-UP Remove access panel to gain access to unit wiring. Extend wires CAUTION: To prevent compressor damage or personal from disconnect through power wiring hole provided and into unit injury, observe the following: control box. Do not overcharge system with refrigerant. Do not operate unit in a vacuum or at negative pressure. WARNING: The unit cabinet must have an uninter- Do not disable low-pressure switch. rupted or unbroken ground to minimize pers
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TABLE 3—REQUIRED LIQUID-LINE TEMPERATURE (°F) REQUIRED SUBCOOLING LIQUID TEMPERATURE PRESSURE AT (°F) SERVICE VALVE (PSIG) 8 1012141618 189 58 56 54 52 50 48 195 60 58 56 54 52 50 202 62 60 58 56 54 52 208 64 62 60 58 56 54 215 66 64 62 60 58 56 222 68 66 64 62 60 58 229 70 68 66 64 62 60 236 72 70 68 66 64 62 243 74 72 70 68 66 64 251 76 74 72 70 68 66 259 78 76 74 72 70 68 266 80 78 76 74 72 70 274 82 80 78 76 74 72 283 84 82 80 78 76 74 291 86 84 82 80 78 76 299 88 86 84 82 80 78 308 90 88 86
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TABLE 4—SUPERHEAT CHARGING EVAPORATOR ENTERING AIR TEMPERATURE (°F WB) OUTDOOR TEMP (°F) 50 52 54 56 58 60 62 64 66 68 70 72 74 76 55 9 12141720232629323537404245 60 7 10121518212427303335384043 65 — 6 10 13 16 19 21 24 27 30 33 36 38 41 70 — — 7 1013161921242730333639 75 — — — 6 9 12 15 18 21 24 28 31 34 37 80 ———— 5 8 12 15 18 21 25 28 31 35 85 —————— 8 11 15 19 22 26 30 33 90 —————— 5 9 13 16 20 24 27 31 95 ——————— 6 10 14 18 22 25 29 100 ———————— 8 12 15 20 23 27 105 ———————— 5 9 13 17 22 26
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BRYANT BRYANT FA, FB, FC, NON-PROGRAMMABLE NON-PROGRAMMABLE FD, FF AIR SINGLE-STAGE AIR THERMOSTAT THERMOSTAT FAN COIL CONDITIONER MODEL AC FURNACE CONDITIONER MODEL AC 24 VAC HOT 24 VAC HOT R R R R 24 VAC COM 24 VAC COM C C C C SEE SEE HEAT STAGE 1 W/W1 W C C NOTE 2 NOTE 2 HEAT STAGE 1 W/W1 W2 COOL STAGE 1 Y/Y2 Y COOL STAGE 1 Y/Y2 INDOOR FAN G G G INDOOR FAN G A97359 A97360 BRYANT BRYANT PROGRAMMABLE PROGRAMMABLE FA, FB, THERMOSTAT SINGLE-STAGE AIR THERMOSTAT FC, FD, FF AIR MODEL AC FURNACE
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BRYANT BRYANT NON-PROGRAMMABLE PROGRAMMABLE AIR THERMOSTAT FK4C AIR THERMOSTAT FK4C CONDITIONER MODEL AC FAN COIL CONDITIONER MODEL AC FAN COIL J1 JUMPER DH DH 24 VAC HOT R 24 VAC HOT R R R C INDOOR FAN G 24 VAC COM J1 JUMPER C G J2 JUMPER W/W1 W/W1 HEAT STAGE 1 HEAT STAGE 1 J2 JUMPER W1 SEE W1 C NOTE 2 Y/Y2 Y/Y2 COOL STAGE 1 COOL STAGE 1 W2 W2 Y/Y2 G NOT USED O/W2 INDOOR FAN Y/Y2 G NOT USED Y1/W2 SEE C NOTE 2 O Y1 C 24 VAC COM C Y1 B A97363 NOT USED OTHER O L NOT USED NON-PROGRAMMABLE FK4C A
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PURON® (R–410A) QUICK REFERENCE GUIDE Puron® refrigerant operates at 50-70 percent higher pressures than R-22. Be sure that servicing equipment and replacement components are designed to operate with Puron® Puron® refrigerant cylinders are rose colored. Recovery cylinder service pressure rating must be 400 psig, DOT 4BA400 or DOT BW400. Puron® systems should be charged with liquid refrigerant. Use a commercial type metering device in the manifold hose when charging into suction line with
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© 2003 Bryant Heating & Cooling Systems 7310 W. Morris St. Indianapolis, IN 46231 Printed in U.S.A. 550a184 Catalog No. 5355-020 —12—
