Gebruiksaanwijzing /service van het product 575B van de fabrikant 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 .
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