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Bryant 575C - page 1
Cancels : II 575B- 72-3 II 575B-72- 4 9/15/04 CONTENTS Pag e SAFETY CONSIDERA TIONS . . . . . . . . . . . . . . . . . . . . . . . . . 1 GENERAL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 INST ALLA TION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-14 I. Complete Pre-I nstallation Che ck ...
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Bryant 575C - page 2
— 2 — B. Locate Unit F o r service a ccess and unr estricted airfl ow , provide clear ance on ea ch end an d side o f unit. P ositi on unit so that there is unrestri cted airflow abo ve unit. NO TE: Before mounting uni t, remove ho lddown brac kets and relea se skid. If con d itio ns or loc a l c o des r eq uir e uni t t o be fas tene d to pad ...
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Bryant 575C - page 3
— 3 — Fig. 2 — 575 C090,120 Unit Dimensions ...
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Bryant 575C - page 4
— 4 — Fig. 3 — 541A180 Unit Dimensions NO TE: Recommended ser vice clearances are as f ollows (local codes or jurisdictions may prev ail): Side (compresso r) — 3 1 / 2 ft (1067 mm) Side (opposite compressor) — 3 ft (914 mm) Ends — 2 ft (616 mm) T op — 5 ft (1524 mm) WEIGHT DISTRIBUTION UNIT 541A WEIG HT — lb (kg) To t a l Operati ng ...
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Bryant 575C - page 5
— 5 — LEG END Fig. 4 — Comp onent Locatio ns — 541A180 Shown 1— Defrost Board/T ime Guard II Control 11 — P ow er T er minal Block 20 — High-Pressure Switch 2— Fuse 12 — Control T erminal Block 21 — Compressor 3— F an No. 1 13 — Compressor Lockout (CLO2 f or Crankcase Heater) 22 — Capacity Control S olenoid 4— Compressor ...
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Bryant 575C - page 6
— 6 — T able 1 — Physica l Data — 5 75B072, 575 C090,120 an d 541A180 Un its *Unit is factory supplied w ith holding charge only . †T ypical ope rati ng char ge with 25 ft of intercon necting pipe. **Storage capacity of condenser coil wit h 80% full of liquid at 95 F . ††Equipped with an electric solenoid unloader , capacity steps are ...
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Bryant 575C - page 7
— 7 — III. COMPLETE REFRIGER ANT PIPING CONNECTIONS Refrigeran t lines mu st be careful ly desig ne d a nd c onstr ucted to ensure eq uipment relia bility and efficiency . Line length, pressure drop, comp ressor oil retu rn, and vertical sepa ra tion are sev eral of the des ign crit eria th at must be eval uated. See Ta b l e 2 . IMPORT ANT: Do ...
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Bryant 575C - page 8
— 8 — T able 4 — R efrigerant Speci alties P art Number s *A filter drier is ship ped loose with the 57 5B072 units . †Bushin gs requi red. **F ac tory Installed. F . Provid e Safety Re lief A fusibl e plug is loca ted on the comp ressor crankcase or in the li quid line . See F ig . 6. Do n ot cap th is plug . If lo cal co de requir es addi ...
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Bryant 575C - page 9
— 9 — IV . COMPLETE ELECTRICAL CONNECTIONS A. Power Supp ly Elect rical charac teris tics of av aila ble pow er suppl y must agree with nameplate ra ting. Supply voltage must be within tolera nces show n in T able 7. Ph ase imbalan ce must n ot exceed 2%. Op eration of unit on improper s upply voltage or with excessive ph ase imbalance constitu ...
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Bryant 575C - page 10
— 10 — Duplex 575C120, 541A180 w ith 524A-H24 0 or 524 A-H300 In ord er to pr operly conne ct two he at pump conde nsin g units to a s ingle 524A -H pack aged air h andler , it is necessary to add field-supplied F an Coil Relay Board(s), P/N 33ZCRL YBRD. Rela y board(s) no. 1 and no. 2 should be installe d in the control box of conde nsing unit ...
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Bryant 575C - page 11
— 11 — W2 G C R Y O E 1 2 3 4 5 6 7 8 TO ELECTRIC HEA TER ACCESSORY , IF EQUIPPED IFC LLSV THERMOST A T CONNECTION BOARD (TB) Fig. 9 — Wir ing Diag ram — 575 B072; 208/2 30-3-60 Units LEGEND DF — Defrost Rela y LP/HP — Low or High-Pressure Switch (O ptional) PS — Pressure Swit ch RV — Rev ersing V alve SEN — Outdoor Coil T emperat ...
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Bryant 575C - page 12
— 12 — LEGEND EQUI P — Equipment GND — Ground HC — Heater Contactor IFC — Indoor F an Contactor IFM — Indoor F an Motor NEC — National Electrical Code TB — T er minal Block Fig. 11 — Wir ing Diagra m — 541A 180 Unit With Sta ndard T hermostat and Electric He at ...
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Bryant 575C - page 13
— 13 — TB2 HEA T PUMP “A” TB2 HEA T PUMP “B” G2/(W) G3/(Y) COM G MED(HEA T) HI(COOL) (V AL VE) FA N LO R Y1 Y2 W1 W2 G C O WHT WHT C2 IFC C1 R Y1 Y2 W1 W2 G C X 524A-H HEA T ACCESSOR Y W1 W2 C 524A-H240 TERMINAL BLOCK TB1 FIELD POWER WIRING DISCONNECT FIELD POWER SUPPL Y 3-Ph ONL Y L1 L2 L3 EQUIP GND TB1 HC1 HC1 CIRCUIT BREAKER (5 HP AN ...
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Bryant 575C - page 14
— 14 — Y2 TB2 HEA T PUMP A 541A180 R B W1 A2 Y1 Q C P X 1 2 TB2 HEA T PUMP B 575C120 G2/(W) G3/(Y) COM G MED(HEA T) HI(COOL) (V AL VE) FA N LO G2/(W) G3/(Y) COM G MED(HEA T) HI(COOL) (V AL VE) FA N LO R Y1 Y2 W1 W2 G C X WHT WHT C2 IFC C1 R Y1 Y2 W1 W2 G C X 524A-H HEA T ACCESSOR Y W1 W2 C 524A-H300 TERMINAL BLOCK TB1 FIELD POWER WIRING DISCONN ...
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Bryant 575C - page 15
— 15 — PRE-ST ART -UP IMPORT ANT: Before begin ning Pre-Start-Up or Start-Up, review St art-Up Checklist at the back of this book. The chec klist assures p roper st art-up of t he syste m and pr ovides a record of unit condi tion, applica tion requir ements , system inform ation, and operati on at init ial star t-up. I. PRELIMINAR Y CHECKS 1. C ...
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Bryant 575C - page 16
— 16 — Before starting the u nit, cha rge liqu id refrig erant in to the high s ide o f the system th rough the li quid ser vice v alve. Allow hi gh and lo w side pre ssu res t o equali ze be for e star ting compresso r . If pre ssures do not equa lize readily , cha rge vapo r on low s ide of system to assur e char ge in the evapor a- tor . Ref ...
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Bryant 575C - page 17
— 17 — IV . COMPRESSOR LOCKOUT DEVI CE The compresso r lockout (CLO) device preve n ts the c ompres- sor from star ting or runnin g in a high pressure, los s-of- charge or fr ee zes tat op en s it uati on. Reset t he CLO d e vice b y setting the thermos tat to eliminate cooling demand an d return it to the origi nal set point. I f the syste m s ...
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Bryant 575C - page 18
— 18 — SEQUENCE OF OPERA TION I. 575B07 2 UNITS When power is suppl ied to un it, the transfor mer (TRAN) and crankcas e heater (C CH) are ene rgized. A. Cooling On a call for cooling , the t hermos tat compl etes the follo wing circuits: R -G , R-Y , a nd R-O . If the comp ressor recycle delay of 3 minut es is comple te, the compresso r and ou ...
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Bryant 575C - page 19
— 19 — When the th ermost at is satis fied, con tacts open , deenergi z- ing C . The CO MP , IFM, and OFM stop. B. Heating On a call for hea t, thermostat make s circuits R-Y and R-G. When co mpressor time dela y (5 ± 2 minutes) is complete d, a c i r c u i t i s m a d e t o C , s t a r t i n g C O M P a n d O F M . C i r c u i t R - G also e ...
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Bryant 575C - page 20
— 20 — Unit is equipped with a no -d ump reve rsing valve ci rcuit. When unit is in Cool ing mode , reve rsing v alve rema ins in coolin g posit ion unt il a cal l for he ating is requ ested b y ther- mostat. Wh en unit is in He ating mode, reversi ng valve remain s in hea ting po sition un til the re is a ca ll for cool ing. The cr ankc ase he ...
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Bryant 575C - page 21
— 21 — IV . 54 1A180 COOL ING MODE OPERA TION (See Fig. 22 ) 1. High pr essure , high te mperature r efrigeran t vapor from the compr essor flows through the reversing valve and i s di rected to the outdoo r coil vapor hea der . 2. At the ou tdoor coil v apor h eader , the h igh pr essure , high tempe rature refrig erant vapor fl ows up to c he ...
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Bryant 575C - page 22
— 22 — ACCUMULA TOR COMPRESSOR REVERSING V AL VE V APOR LINE BALL VA LV E TO INDOOR UNIT FIL TER DRIER LIQUID LINE BALL VA LV E FROM INDOOR UNIT FIXED ORIFICE METERING DEVICE FIL TER DRIER CK V AL VE C CK V AL VE A CK V AL VE B FIL TER DRIER COMPR CK V AL VE B CK V AL VE A CK V AL VE C LLSV LIQUID HOT GAS GAS AND OIL MUFFLER ACCUMULA TOR REVERS ...
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Bryant 575C - page 23
— 23 — IX. COIL CLEANING AND MAINTENANCE This sec tion discusses the c leaning and the ma intenance of stan dard coil s and E-Coa ted coil s . Routine c leanin g of coil surfac es i s ess enti al to mi ni mize c o ntam ina tion b uil d-up and remove ha rmful residu e. Inspect coils m onthly and clea n as requir ed. A. Cleaning Stand ard Coils S ...
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Bryant 575C - page 24
— 24 — Routine Cleaning of E-Coate d Coil Surfaces Monthly cl eaning with Environ mentally Sound Coil Cleaner is esse ntial t o exten d the life of coil s. It is re commen ded that all coil s incl uding standar d aluminu m, pre-c oated, copper/copper , or E-coated co ils be clean ed with the Envir on- menta lly Sou nd Coil Cleaner as de scribed ...
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Bryant 575C - page 25
— 25 — TROUBLESHOO TING CHAR T — HEA TING CYCLE LEGEND CCH — Crankcase Heater N.C. — Normal ly Cl ose d ...
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Bryant 575C - page 26
Copyright 2 004 Br yant Heating & Cooling Systems Print ed in U.S.A. CA T ALOG N O . 53 57-506 TROUBLESHOO TING C HAR T — C OOLING CYCLE LEGEND CCH — Crankcase Heater TXV — Thermost atic Expansion V alve ...
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Bryant 575C - page 27
CL-1 ST ART -UP CHECKLIST I. PRELIMINARY INFORMATION OUTDOOR UNIT: MODEL NO. __ __ _______ ______ _______ __ _____ SERIAL NO.: ______ _______ __ ______ _______ ______ INDOOR UNIT : MODEL N O . ____ _________ ______ _______ _______ SERIAL NO .: ______ _________ ______ _______ ______ ADDITIO NAL ACCESSORI ES _______ _______ _______ ________ _______ _ ...
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Bryant 575C - page 28
Copyright 2 004 Br yant Heating & Cooling Systems Printe d in U.S .A. 10 -05A CL-2 CA T ALOG N O . 535 7-506 CUT ALONG DO TTED LI NE CUT ALONG DO TTED LINE III. START-UP CHECK INDOOR FAN SPEED AND RECORD. ___ _________ ___ CHECK OUTDOOR FAN SPEED AND RECORD . __________ ______ AFTER AT LEAST 10 MINUTES RUNNING TI ME, RECORD THE FOLLOWING MEASUR ...
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