Bryant DURAPAC 579F manuale d’uso

Cancels: II 579F-1 80-7 II 579F -180-8 3/15/06 installation , start-up and service instructio ns SINGLE P A CKA GE ROOFT OP GAS HEA TING/ELECTR IC COOLIN G UNITS 579F Dura Pa c Series Siz es 18 0-30 0 15 to 25 T ons CONTENTS Pag e SAFETY CONSIDERA TIONS . . . . . . . . . . . . . . . . . . . . . . . . . 1 INST ALLA TION . . . . . . . . . . . . . . .[...]

— 2 — Fig. 1 — Roof Cu r b Details PKG. NO. REF . CURB HEIGHT DESCRIPTION CRRFCURB010A00 1 ′− 2 ″ (305) Standar d Curb 14 ″ High CRRFCURB011A00 2 ′ -0 ″ (610) Standar d Curb for Units Req uirin g High In stallati on CRRFCURB012A00 2 ′ -0 ″ (610) Side Su pply and Retur n C urb for High In stalla tion[...]

— 3 — IMPORT ANT : T he gask eting of t he unit to the roof curb o r adapter ro of curb is criti cal for a watertight seal. I n stall g as- ket with the roof curb o r adapter as shown in Fig . 1. Improp- erly applied gasket can also result in air leaks and poor unit performance . B. Alternate Unit Support When the c urb o r adapte r cann ot be [...]

— 4 — NO TE S: 1. Dimensions in ( ) are in millimeters. 2. Refer to Fig. 4 and 5 for unit operating weights. 3. Remov e boards at ends of unit and r unners pr ior to rigging. 4. Rig by inserting hooks into unit base rails as shown. Use cor ner post from packaging to protect coil f r om damage. Use bumper b oards for spreader bars on all units. [...]

— 5 — NO TES: 1. Refer to p rint for roof curb acc essor y dim ensions. 2. Dimensions in ( ) are in millimeters. 3. Center of Gravity . 4. Direction o f airflow. 5. Ductwork to be attache d to accessor y roof curb only . 6. Minimu m cle arance: •R e a r : 7 ′ -0 ″ (2134) for coil removal. This dime nsion can be re duced to 4 ′ -0 ″ (1[...]

— 6 — NO TES: 1. Re f er to prin t f or roof c urb acce ssory di me nsio ns . 2. Dimensions in ( ) are in millimeters. 3. C ent er of Gra vity . 4. Direction of ai rflow . 5. Ductwor k to be attached to accesso ry r oof cur b only . 6. Mi nim um clea rance: • Rear : 7 ′ -0 ″ (2134) for coil removal. This di mensio n can be reduc ed to 4 ?[...]

— 7 — T able 1 — Ph ysical Data LEGEND *Circuit 1 uses the lower por tion of condenser coil and lower portion of ev aporator coils; and Circuit 2 uses the upper por tion of both coils. †Rollout switch is manual reset. **The 579F300 units requires 2-in. industrial-grade filters capable of handling face veloc- ities of up to 625 ft/min (such [...]

— 8 — III. STEP 3 — FIEL D F ABRICA TE DUCTWORK Se cure all duc ts to buildi ng stru ctur e. Us e fl exi bl e duc t con- nector s betwee n unit and du cts as requ ired. Insu late and weatherp roof all e xternal du ctwork, joints, and roof openings with co unte r flash ing and m asti c i n acc ord an ce wi t h appl ica- ble c odes. Ducts pa ss[...]

— 9 — VII. STEP 7 — ORIFICE CHANGE This uni t is fact ory a ssemb led for hea ting ope ratio n using natural g as at an ele vation fr om sea level to 2000 ft . This unit uses ori fice type LH32RFn nn, where “nnn” i ndicates th e orifice size based on drill size diamet er in thou sands of an inch. A. High Ele vation (Abo ve 2000 ft) Use ac[...]

— 10 — VIII. STEP 8 — INST ALL GAS PIPING Unit is equi pped for use w ith natural gas . Installation must confo rm with lo cal bui lding codes or , in the absen ce of local codes , with the National Fuel Gas Code , ANSI Z223.1. Insta ll field-suppl ied manual g as shutoff valve with a 1 / 8 - i n . N P T p r e s s u r e t a p f o r t e s t g [...]

— 11 — 7. Tu rn the hand le t o th e OFF posi tion and close t he door . Th e handl e shou ld f it over the end o f the sh aft when the d oo r is clos ed. 8. Th e hand le m ust be in the OFF position to open the control box door . D . Optio nal Con venience Out let On un its wi th opt iona l con venienc e ou tlet, a 115-v GFI (ground fault inte[...]

— 12 — T able 5 — El ectrical Da ta LEGEND *Fuse or HACR circuit breaker . NO TES: 1. I n compliance with NEC requirements for multimotor and combina- tion load equipment (ref e r to NEC Ar ticles 430 and 440), the ov ercur- rent protective de vice for the unit shall be fuse or HA CR breaker . Canadian units may be fuse or circuit breaker . 2[...]

— 13 — XII. STEP 12 — INST ALL ALL A CCESSORIES Afte r all the fac tory -inst alled opti ons ha ve be en adj usted , install all field-i nstalle d accessori es. Refer to the acce ssory instal lation instructi ons inc luded with eac h accessor y . A. Motormaster® I Control Ins tallation (579F1 80 and 216 Only) Instal l Fi eld-F abricated W in[...]

— 14 — Instal l Moto rmas ter V Con trols The Motorma ster V cont rol is a motor s peed contro l device which adj usts c ondenser fan motor speed in re sponse to declining liquid refrigerant pressure. A properly applied Motormaster V control extends the ope rating range of ai r - cond i ti o n ing s yst ems and perm it s ope rat ion at lower ou[...]

— 15 — T abl e 8 — Outdoo r Ai r Dam per Leakag e T able 9 — Re turn Air Pressure Dr op (in. wg) B. EconoMi$erIV Sta ndar d Sensor s Outdoor Air Te mperature (OAT) Sensor The out door air temper ature se nsor (HH57AC074 ) is a 10 to 20 mA device used to measure the outdoor-air temperature. The out door-air temp erature is us ed to de termi [...]

— 16 — C. EconoMi$ e rIV Contr ol Mo des Determine the EconoMi$erIV control mode before set up of the control. Some modes of operatio n may r equire different sensors. Re fe r t o T able 11. T h e EconoMi $erIV is supplied from the fac- tory wi th a suppl y air temp erature sen sor , a low tempe rature compressor lockout switch, and an ou tdoor[...]

— 17 — T able 11 — EconoM i$erIV Sen sor Usage *CRENTDIF0 04A00 and CRTEMPS N002A00 accessories are used on man y diff erent base units . As such, these ki ts ma y contai n parts tha t wil l not be neede d f or installation. †CGCDXSEN004 A00 is an acces sory CO 2 se nsor. **CGCDXA SP001A0 0 is an accessory aspir ator box requ ired for duct-[...]

— 18 — Indoor Air Quality (IAQ ) Sensor Input The I AQ inp ut ca n be used for dema nd control v entil ation control based on the leve l of CO 2 meas ured i n the space or re turn air du ct. Mount the accessory IAQ sensor according to manufacturer specific ations. The IAQ sens or should b e wired to the AQ a nd AQ1 terminals of the controller .[...]

— 19 — Adjust the minimum pos ition potentio meter to all ow the minimum amount of o utdoor air , as requir ed by lo cal codes , to enter the building. Ma ke minimum position adjustments with at least 10° F temperature difference between the out- door and return-air temperatures . T o determine the minim um position setting, perform the follow[...]

— 20 — The sam e equation can be used to det erm ine th e occup ied or maximum ventilation ra te to the buildi ng. F or exampl e, an output of 3.6 vo lts t o the ac tuat o r pro vide s a ba se ventil at io n rate of 5% and an outp ut of 6.7 volts pr ovides t he maxim um ventilation rate of 20% (or ba se plu s 15 cfm pe r pe rson). Use Fig . 32 [...]

— 21 — XIV . STEP 14 — INST ALL HUMIDIST A T FOR OPTIONAL PERFECT HUMIDITY™ DEHUM IDIFICA TION P ACKA GE P erfect Humidity dehumidification package operation can be cont rolled by f ield installatio n of a Bryant-ap prov ed humid istat. T o instal l the humidis tat perform the following proced ure: 1. Locate humidistat o n a solid interior [...]

— 22 — ST ART -UP Use th e follow ing in format ion and S tart-Up C heck list on page CL-1 to check out unit PRIOR to start-up . I. UNIT PREP ARA TION Check t hat unit has be en instal led in ac cordan c e wi th thes e instal lation instru ctions an d all appl icable codes . II. COMPRESSOR MOUNTING Do not lo osen or re move com press or h olddo[...]

— 23 — V . INTERNAL WIRING Check al l el ec tric al conne c tio ns in uni t co ntr ol boxe s; tig hte n as re quir ed . VI. CRANKCASE HEA TER (Size 300 a nd Units with P erfect Humidity™ Deh umidification Pack ag e Onl y) Crankc ase heater(s) is energ ized a s long as the re is powe r to the unit and the compressor is not oper ating. IMPORT A[...]

— 24 — T able 14 — Fan P erforman ce — 579 F216 and 2 40 (Low Heat U nits) LEGEND NO TES: 1. Standar d low-medi um stati c drive range for size 216 is 910 to 1095 rpm . Standar d low-med ium static dri ve range for size 240 is 1002 to 12 25 r pm. Alter nate h igh-stat ic drive rang e for size 216 is 1069 to 1287. Al tern ate high- static dr[...]

— 25 — T able 16 — Fan P erforman ce — 579 F180 (Hig h Heat Units ) LEGEND NO TES: 1. Standar d low-med ium stat ic dr ive range is 891 t o 1179 r pm. Alt er nate h igh- static dr ive range is 1227 to 1550. Other r pm s requ ire a fie ld-supp lied dr ive. 2. Maximum co ntinuous bhp is 4.25 a nd the m aximum continuou s watts are 3775. Do no[...]

— 26 — T able 18 — Fan P erforman ce — 579 F300 (Hig h Heat Units ) LEGEND NO TES: 1. Standar d low-med ium stat ic dr ive range is 1066 to 12 83 r pm. Al ter nate h igh- static dr ive range is 1 332 to 1550. Other r pm s requi re a field -supplie d dri ve. 2. Maximum continuous bhp is 10.2 (208/2 30 v) or 11.8 (460 v) and the maxi- mum con[...]

— 27 — T able 23 — Fan Rpm at Motor Pull ey Settings* *Approximate f an r pm shown. †Indicates standard low/medium static driv e package. **Indicates alternate high static-dr iv e package . ††Due to belt and pulle y size, pulley cannot be set to this number of turns open. NO TE: F or speeds not listed abo ve , field-supplied driv es are[...]

— 28 — XII. OPERA TING SEQUENCE A. Coolin g, Units Wi thout Econo mizer When therm ostat call s for co oling , termina ls G and Y1 are energized. The indoor (evaporator) fan contactor (IFC), com- pre ssor co ntac tor no . 1 (C1 ) and ou tdo or -fa n co nta cto r (O FC) are energize d, a nd eva porat or -fan motor , compre sso r no. 1, and both [...]

— 29 — C. Combus tion-Air Blo wer Clean perio dically to assur e proper airflow and heating effi- ciency . Inspect blow er whee l ev ery fall and peri odically during heating season. F or the first heating seaso n , inspect blowe r wheel bi-m onth ly to d eterm ine p rope r clea ning f requenc y . T o ins pect blow er wheel, remov e heat exchan[...]

— 30 — 7. Ensure cleaner th oroughly p enetra tes deep into finned are as. 8. Inte rior an d exteri or f inned area s mus t be th orough ly cleaned. 9. Finned surfaces sho uld re main we t with clea ning solution for 10 minutes. 10. Ensure sur faces are not allowed to dry b efore rins ing . Reappl ying clea ner a s neede d to ens ure 10 -minu t[...]

— 31 — IV . EV APORA T OR F AN SER VICE AND REPLACEMENT A. 579F1 80 Units (Se e Fig. 3 9) NO TE: T o remove be lts on ly , foll ow St eps 1-6 . 1. Remove filter and su pply-air section panels . 2. Remove unit top panel. 3. Loosen ca rriage nuts A and B holdin g motor moun t assemb ly to fan scroll side pl ates . 4. Loosen scre w C . 5. Rotate m[...]

— 32 — B. 579F2 40,300 U nits (Fig. 42) 1. Shut off unit power supply . 2. Rem ove f an top- gril le asse mbl y and lo osen fan hub screw s. 3. Adjust fan height on uni t, using a str aightedge plac ed ac ross t he fan o rifice. 4. Tighten setscrews and replace rubber hubcap to pre- vent hub fr om rustin g to motor shaft. 5. Fill hub r ecess wi[...]

— 33 — 4. Set main gas valve to ON positio n. 5. Set thermostat at setting to cal l for heat. 6. Remove sc rew cap cover ing regulato r adjustm ent scre w (S ee Fig. 44) . 7. Turn adjustment s crew clockwis e to increa se pres - sure or cou nterclockw ise to decre ase press ure. 8. Once desired pressure is esta blished, set thermo stat setting [...]

— 34 — XVII. OPTIONAL HINGED ACCESS DOORS When the op tional s ervice packa ge is ord ered or the if the hinged access do ors optio n is order ed, the uni t will be provided wi th external and inter nal hinged acc ess doors to facili t ate s ervic e. F our ex ternal hinged acc ess do ors are pr ovide d. Al l ex terna l doors a re provide d with[...]

— 35 — Fig. 46 — T ypical Wirin g Schematic (579F 180, 2 08/230- V Shown)[...]

— 36 — Fig. 47 — T ypical Compo nent Arrangement (579F2 40, 208/23 0-V Shown)[...]

— 37 — LEGEND AND NOTES FOR FIG. 46 AND 47 QT — Quadruple T erminal RA T — Retur n Air T emperature Sensor RS — Rollout Switch SN — Sens or SW — Switch TB — T erminal Block TC — Therm ostat Cooling TH — Therm ostat Heating TRAN — T ransformer T er minal (M arked) T er minal (Unm arked) T er minal Block Splice F actor y Wiring [...]

— 38 — TROUBLESHOO TING I. UNIT TR OUBLESHOOTI N G Refe r to T ables 26- 2 8 an d Fig. 48. II. ECONOMI$ERI V TROUBLSHO O TING See T able 2 9 for Econo Mi$er IV lo gic. A function al view o f the EconoM i$erIV is shown in Fig . 49. Typical set tings , sensor ranges , and jumper position s are also sh own. An Ec onoMi $erIV simul ator pr ogra m i[...]

— 39 — G. EconoMi$ erIV T roub lesho oting Completio n This proce du re is us ed to r eturn the Eco noMi $erI V to o pera - tion. No troublesho oting o r test in g is done by performing the follow in g procedure . 1. Disconnect powe r at TR an d TR1. 2. Set enthalpy potentiome ter to previous setting . 3. Set DCV maximum positi on potentiometer[...]

— 40 — T able 27 — Heating Se rvice Anal ysis LE GEND GR — Ground T able 28 — P erfect Humi dity™ Dehumidification Su bcooler Service Analys is PR OBLEM C A USE REME D Y Burners Will Not Ignit e. Misaligned spar k electrodes. Check flame ignition and sens or electrode positioning. Adjust as needed. No gas at main burners. Check gas line[...]

— 41 — Fig. 48 — IG C Contr ol (Heatin g and Cooling) LEGEND IGC — Integrated Gas Unit Controller NO TE : Thermostat F an Switch in the “A UTO” position.[...]

— 42 — T able 29 — EconoM i$erIV In put/Output Lo gic *For single enthalpy control, the module compares outdoor enthalpy to the ABCD set point. †P ower at N terminal deter mines Occupied/Unoccupied set ting: 24 v ac (Occupied), no power (Unoccupied). **Modulation is based on the supply air sensor signal. ††Modulation is based on the DCV[...]

— 43 — INDEX Air qua ntity lim its 26 Altitud e com pensat ion 9 Burne r spark gap 34 Change over s et poin ts 17, 18 Charging chart, refrig erant 32 Clearance 5,6 CO 2 senso r Configu rati on 20 Settin gs 19, 20 Combusti on blow er wheel 29 Compressor Lock out 15, 33 Lubric ation 30 Moun ting 22 Rot ation 22 Concentric d uct 8 Cond ensate drai[...]

— 44 — SER VICE TRAINING P ackaged Service T raining progra ms are an excel lent way to incre ase yo ur kno wledge o f the equ ipment discussed in this manual, including: • Uni t F am i liar iza tion • Main te na nce • Install ation Over view • Operating Seque nce A large selection of pro duct, theory , and skills prog rams are availabl[...]

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Copyright 2 006 Br yant He ating & Cooling System s Pr inted in U .S.A. CA T ALO G NO. 04-53579 001-01[...]

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Copyright 2 006 Br yant He ating & Cooling Systems Print ed in U.S.A. CL-1 CA T A LOG NO. 04-535 79001- 01 CUT ALONG DO TTED LINE CUT ALONG DO TTED LINE ST ART -UP CHECKLIST I. PRE-ST AR T -UP VERIFY THAT ALL P ACKI NG MATERIALS HA VE BEEN REMOVED FROM UNIT VERIFY INSTALLA TION OF INDOOR F AN MO TOR ADJUSTMENT BOL T AND PLATE (579F216-300 ONL Y[...]