Instruction/ maintenance manual of the product 575B Bryant
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Cancels : II 575B- 72-3 II 575B-72- 4 9/15/04 CONTENTS Pag e SAFETY CONSIDERA TIONS . . . . . . . . . . . . . . . . . . . . . . . . . 1 GENERAL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 INST ALLA TION . . . . . .
— 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.
— 3 — Fig. 2 — 575 C090,120 Unit Dimensions.
— 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 (oppos.
— 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.
— 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 .
— 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.
— 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 .
— 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%.
— 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.
— 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 D.
— 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.
— 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 .
— 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 .
— 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.
— 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 .
— 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.
— 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 .
— 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 .
— 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.
— 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 .
— 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.
— 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.
— 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.
— 25 — TROUBLESHOO TING CHAR T — HEA TING CYCLE LEGEND CCH — Crankcase Heater N.C. — Normal ly Cl ose d.
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 Exp.
CL-1 ST ART -UP CHECKLIST I. PRELIMINARY INFORMATION OUTDOOR UNIT: MODEL NO. __ __ _______ ______ _______ __ _____ SERIAL NO.: ______ _______ __ ______ _______ ______ INDOOR UNIT : MODEL N O .
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 .
An important point after buying a device Bryant 575B (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 575B 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 575B - thus you can check whether the hardware meets your expectations. When delving into next pages of the user manual, Bryant 575B you will learn all the available features of the product, as well as information on its operation. The information that you get Bryant 575B will certainly help you make a decision on the purchase.
If you already are a holder of Bryant 575B, 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 575B.
However, one of the most important roles played by the user manual is to help in solving problems with Bryant 575B. Almost always you will find there Troubleshooting, which are the most frequently occurring failures and malfunctions of the device Bryant 575B 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
