Bryant SERIES A 355CAV manuale d’uso

Installation Instructions PLUS 95S - - MODEL 355CA V , SERIES A DIRECT - - VENT 4 - - W A Y MUL TIPOISE CONDENSING GAS FURNACE WITH PERF ECT SENSE T PERFECT H UMIDITY T V isit ww w .Bryan t.co m NOTE : Read the en tire instru ction man ual b efo re starting the in stallation . Please retain these in structio n s with the furnace after installatio n[...]

2 Requir ed Notice for Massachusetts Installations IMPOR T ANT The C ommonwe alt h of Mas sa chus et ts r equir es c omplia nce with r egula tion 248 CM R a s f ollows : 5.08: Modi fic ati ons to NFP A- - 54, Chapte r 10 2) Re vise 10.8. 3 by a dding t he foll owing addi tiona l re quire ments : (a .) For al l si de wa ll hori zonta lly ve nted ga [...]

3 T ABLE OF CONTENTS P AGE IMP OR T AN T INF OR MA T ION 2 ........................ SAFETY CONSIDERA TI ONS 3 ........................ CODES AND ST ANDARDS 7 .......................... ELECTROST A TIC DISCHARGE (ESD) PRECAUTIONS 7 .. INTRODUCTI ON 7 .................................. APPLICA TI ONS 8 ................................... Upflow 8 ...[...]

4 NOTES: 1. Minimum return-air openings at fur nace, based on metal duct. If flex duct is used, see flex duct manuf acturerí s recommendations for equivalent diameters. 2. Minimum return-air opening at fur nace: a. For 800 CFM–16-in. (406mm) round or 14 1 / 2 (368 mm)x 12-in. (305 mm) rectangle . b. For 1200 CFM–20-in. (508mm) round or 14 1 / [...]

5 Install this furn ace on ly in a lo cation an d p ositio n as specified in LOCA TI ON a nd INST ALLA TI ON se cti ons of the se i nstr uct ions. Combus ti on produc ts mus t be disc har ged outdoors . Connec t thi s furn ace to an appr ov ed ven t system o nly, as sp ecified in the Co mb ustio n Air and V en t pip ing sectio ns of these instru ct[...]

6 335122-201 REV . B LIT TOP A08435 Fig. 3 - - Cl earanc es to Combus ti ble s 60 80 / 27 C / 16 C A06745 Fig . 4 - - Return - - Air T empera tu r e 18-IN. (457.2 mm) MINIMUM TO BURNERS A93044 Fig. 5 - - Ins tal lati on in a G arage 355CA V[...]

7 The fur nace s hall be i nsta lle d so tha t the e lec tri cal c omponents a re pro tected fro m water . Fo r accessory installatio n d etails, refer to app licable installatio n literature. CODES AND ST ANDARDS Foll ow all national and local c odes and s tandar ds i n additi on to th ese in structio ns. T he installatio n mu st com ply w ith re [...]

8 AP PLIC A TIO NS Gen eral So me assem bly and mo d ification s are requ ired fo r fu rnaces ins tal led i n any of t he four a ppli cat ions s hown in Fi g. 1. Al l dra in and pr ess ure tube s a re c onnec te d as shown i n Fig. 7. See appr opria te appl ica tion ins truc tions f or the se proc edur es . PROPERTY DAM AGE HAZARD Failu re to follo[...]

9 1/2 OD INDUCER HOUSING DRAIN CONNECTION 1/4 OD COLLECT OR BO X TO TRAP RELIEF PORT 5/8 OD COLLECT OR BO X DRAIN CONNECTION 1/2 IN. PVC OR CPVC SCREW HOLE FOR UPFLOW OR DO WN- FLOW APPLICA TIONS (OPTIONAL) 1 4 2 7 8 1 8 7 SLO T FOR SCREW HORIZONT AL APPLICA TION (OPTIONAL) WIRE TIE GUIDES (WHEN USED) 1 2 1 3 4 1 3 4 FRONT VIEW SIDE VIEW FURNACE DO[...]

10 PLUG CAP COLLECTOR BOX DRAIN TU BE (BLUE & W HITE STRIPED) INDUCER HOUSING (MOLDED) DRAIN T UBE (BEHI ND COLLECTOR BOX DRAIN TUBE) COLLECTOR BOX TUBE (PIN K) COLLECTOR BOX DRAIN TU BE (BLUE) COLLECTOR BOX TUBE (GR EEN ROUTES BEHIND INDUCER) FIELD- INST ALLED FACTORY- SUPPLIED DRAIN TUBE COUPLING (LEFT DRAIN OPTION) FIELD-IN STALL ED FACTORY-[...]

11 PLUG CAP COLLECTOR BOX DRAIN TU BE (BLUE & W HITE STRIPED) INDUCER HOUSING (MOLDED) DRAIN TUBE (VIOLET) COLLECTOR BOX TUBE (PIN K) COLLECTOR BOX DRAIN TU BE (BLUE) COLLECTOR BOX TUBE EX TENSION CONDENSATE T RAP COLLECTOR BOX TUBE (GR EEN) A07276 Fig. 9 - - Downf low T ube Configur ation (Left - - ha n d T rap In stalla tion ) DOWN FLOW APPLI[...]

12 CAP PLUG COLLECTOR BOX DRAIN TUBE (BLUE & W HITE STRIPE D) INDUCER HOUSING (MOLDED) DRAIN TUBE (VIOLET) COLLECTOR BOX TUBE (PIN K) COLLECTOR BOX DRAIN TU BE (BLUE) COLLECTOR BOX TUBE EX TENSION CONDENSATE TRAP COLLECTOR BOX TUBE (GREEN) COLLECTOR BOX EXTENSION DRAIN TUBE DRAIN TU BE COUPLING AUX ILIARY “ J” BOX A07278 Fig. 1 1 - - Hori z[...]

13 COMBUSTION - AIR INT AKE VENT MANUAL SHUTOFF GAS V AL VE SEDIMENT TRAP CONDENSA TE TRAP DRAIN ACCESS OPENING FOR TRAP 30 ″ (762 mm)MIN WORK AREA A 12-IN. (305 mm) MIN HORIZONT AL PIPE SECTION IS RECOMMENDED WITH SHORT (5 TO 8 FT / 1.5 TO 2.4 M) VENT SYSTEMS TO REDUCE EXCESSIVE CONDENSA TE DROPLETS FROM EXITING THE VENT PIPE. 5 3 / 4 ″ (146 m[...]

14 PROPERTY DAM AGE Failu re to follo w t his cautio n m ay result in p rop erty dam age . Loca l codes m ay re quire a dra in pan under enti re fur nace and c ondens at e tr ap whe n a c ondens ing f urnac e is use d i n an attic applicatio n or ov er a finish ed ceiling . CAUTION ! NOTE : In C anad a, in stallation s sh all b e in acco rdan ce wi[...]

15 HORI ZON T AL RI GHT (SUPP L Y - - AIR DISCH ARGE) AP PL ICA TIO NS A hor iz ontal r i ght f urnac e appli cat ion is whe re fur na ce bl ower is located to the left of comb u stion and con tro ls section of furnace, and c onditi oned ai r is dis char ged t o the r ight. PROPERTY DAM AGE HAZARD Failu re to follo w t his cautio n m ay result in p[...]

16 NOTE : See Fi g. 14 or tube r outing l abel on mai n fur nace door to che ck for prope r conne ct ions. Relo cate tub es as describ ed belo w . 1. Di s conne ct col lec tor box pres sure t ube (pink la bel) a t- tached to p ressu re switch . 2. Ext end c olle ctor box pre ssur e tube (gr e en l abel ) whic h wa s pr evious ly conne cte d to c on[...]

17 UNIT DAMAGE HAZARD This ga s f urnac e ma y be use d for cons truc tion he at provi ded tha t: - - Th e fu rnace is p erman ently in stalled w ith all electrical wirin g, p ipin g , air filters, ven ting an d d uctin g installed accord ing t o these installatio n instru ction s. A retu rn air d uct is pr ovided, s ea le d to the f urna ce ca sin[...]

18 1 3 / 4 ″ 1 3 / 4 ″ 1 3/ 4 ″ 1 3/ 4 ″ 5/ 16 ″ 5 / 16 ″ 5/ 16 ″ 5/ 16 ″ (44mm) (8mm) (44mm) (8mm) (8mm) (8mm) (44mm) (44mm) A89014 Fig. 18 - - Le ve li ng Legs INST ALLA TION Lev eling L egs (If D esir ed ) Wh en furn ace is u sed in u pflo w p ositio n with side inlet(s), le veli ng l egs m ay be des ire d. (See Fi g. 18.) I ns t[...]

19 (OR OTHER MANUF ACTURER’S COIL CASING WHEN USED) FURNACE COMBUSTIBLE FL OORING DOWNFL OW SUBBASE SHEET MET AL PLENUM FL OOR OPENING A07585 Fig. 20 - - Fur nac e, Pl e num, and Subbase I nst alle d on a Combus ti ble Fl oor F ACTORY SUPPLIED CASED COIL OR COIL BOX FURNACE COMBUSTIBLE FLOORING SHEET MET AL PLENUM FLOOR OPENING A07586 Fig. 21 - -[...]

20 NO TES: ANGLE IRON OR EQUIV ALENT (B) (A) ROD LOCA TION USING DIMPLE LOCA TORS (SEE DIMENSIONAL D WG FOR LOCA TIONS) 13 / 16 -IN. (21mm) MAX AL TERNA TE SUPPORT LOCA TION FROM BACK AL TERNA TE SUPPORT LOCA TION 4-IN. (102mm) MIN 8-IN. (203mm) MAX 3/8 -IN. (10mm) ROD (A) (B) (A) (B) (B) (A) 1. A 1 In. (25mm) clearance minimum betw een top of furn[...]

21 T able 1 – Ope ning Dime nsions - - In. ( mm) FURNACE CASIN G WIDTH APPLICATION (APPROV ED FACTOR Y SUPPLIE D CASE D COILS AND COIL B O X: CD5, CKR, CAP VP , CARVP , CAPMP , CARMP , CNP VP , CN RVP , AN D K CAK C) PLEN UM OPEN IN G FLOOR OPENING A B C D 17 ½ (445) Upfl ow Appl icat io ns on Combus tibl e or Nonc om bust ibl e Fl oor ing (KG A[...]

22 hu mid ifier, or o ther accesso ries. All accesso ries M US T b e con n ected extern al to furnace main casin g. Ret urn Air Conne ct ions FIRE HAZARD Fai lure t o foll ow t his wa rning coul d res ult in per sona l i njur y , death o r pro perty d amag e. Nev er con nect retu rn - - air d ucts to th e back of th e furn ace. Retu rn air d uct co[...]

23 NOTE : Side re turn- - a ir ope nings c an ONL Y be use d in U pfl ow con figu ratio ns. In stall filter(s) as sho wn in F ig. 24 . Fo r botto m return - - air app lication s, filter may need to b e cut to fit som e furn ace wid ths. Install filter as sh ow n in Fig . 2 5. W ASHABLE FIL TER FIL TER SUPPORT FIL TER RET AINER 17 1 ⁄ 2 -IN. (444m[...]

24 BOTTOM CL OSURE PA N E L FRONT FILLER P ANEL A93047 Fig. 26 - - Re moving Bottom Cl osur e Panel UNION SEDIMENT TRAP MANUAL SHUTOFF VALVE (REQUIRED) GAS SUPPLY A93324 Fig . 2 7 - - T y p ical G as P ip e Arra ng emen t COMBUSTION-AIR PIPE GROMMET GAS LINE GROMMET GAS LINE COMBUSTION -AIR PIPE VENT PIPE VENT PIPE GROMMET UNUSED 1-3/4 -IN. (44 mm)[...]

25 Ta b l e 3 – Maxi mu m Capacity of Pipe* NOMINA L IRON PIPE SIZE IN. (MM) INTERNA L DIA. IN. (MM) LENGT H OF PIPE - - - FT (M) 10 (3.0) 20 (6.0) 30 (9.1) 40 (12.1) 50 (15.2) 1/2 (13) 0.622 (158) 175 120 97 82 73 3/4 ( 19) 0.824 (21) 360 250 200 170 151 1 (25) 1.049 (27) 680 465 375 320 285 1-1/4 (32) 1.380 (35) 1400 950 770 660 580 1-1/2 (38) [...]

26 115-V FIELD-SUPPLIED DISCONNECT SWITCH 115-V SINGLE PHASE AUXILIARY J-BOX FURNACE CONTROL CENTER TWO WIRE 24-V TERMINAL BLOCK THREE-WIRE HEATING ONLY FIVE WIRE NOTE 5 NOTE 1 NOTE 3 THERMOSTAT TERMINALS FIELD-SUPPLIED DISCONNECT CONDENSING UNIT R W2 WC R G Y GND GND GND GND FIELD 24-V WIRING FIELD 115-, 208/230-, 460-V WIRING FACTORY 24-V WIRING [...]

27 FAC T O RY INST ALLED LOCA TION UNUSED 7/8-IN. (22 mm) DIAMETER POWER ENTRY HOLES POWER ENTRY HOLE FILLER PLUG (FACTORY- SUPPLIED LOOSE PARTS BAG) A05113 Fig. 31 - - Fact ory I nstal led J- - Box Loc ati on J- -Bo x Relocat ion 1. Remo v e tw o screws ho ld ing au xiliary J- - box. (Se e Fig. 32.) 2. Rot at e J- - box 180 _ a nd at tac h box to [...]

28 AIR FO R COM BUSTION AND VE NTILA TION FURNACE RELIABI LITY HAZARD Failu re to fo llow th is cau tion m ay result in p rematu re com ponent f ail ure. Th is fu rnace can be v en ted as eith er a d irect v ent (2 - - p ipe) furn ace or as an o p tion al v entilated com bu stion air appl ica tion. A dir ec t vent s yste m shal l be inst all ed i n[...]

29 T able 5 – Appr oved C ombus ti on- - Air and V ent Pipe , Fit ting and Ce me nt M ate rial s ASTM SPECI FICA TION (MAR KED ON MATERIAL ) MATERIAL PIPE FI TTINGS SOL VE NT CEMEN T AND P RIMERS DESCRI PTI ON D1527 ABS Pipe — — Sch edu le40 D1785 PVC Pipe — — Sch edu le40 D2235 For A B S — — Solven t For A B S Cem ent D2241 PVC Pipe [...]

30 24-V THER MOSTAT TERMINAL S PL2 – HOT SURFACE IGNITER & I NDUCER MOTOR CONNECTOR 115-VAC (L2) NEUTRAL CONNECTIONS 115-VAC (L1) LINE VOLTAGE CONNECTIONS EAC-1 TERMINAL (115 -VAC 1.0 AMP MAX .) PL1 – LOW VOLTAGE MAIN HARNESS CONNE CTOR PL3 – ECM BLOWER HARNESS CONNECTOR T RANSFORMER 24-VAC CONNECTIONS 3-AMP FU SE STATUS AND COMM LED LIGH[...]

31 12 inches (30 cm) for appliean ces >10,000 Btuh(3 kW) and < 100,000 Btuh(30kW), 36 inches (91cm) for appliances > 100,000 Btuh(30kW) V V A08600 Fig. 34 - - Di r ec t V ent T erm inat i on Clear ance 355CA V[...]

32 A08601 Fig. 35 - - V ent ilat ed Combus ti on Air V ent T erm inat ion Cle arance 355CA V[...]

33 At least 36 in. 18 in. ma x imum V e rtical separation between combustion air and vent 8 3/4 in. (222mm)f or 3 in. (76mm) k it 6 3/4 in. (172mm)for 2 in. (51mm) k it Roof T e rmination (Preferred) Abandoned masonry used as racewa y (per code) At least 36 in. A Maintain 12 in. min. clearance abo ve highest anticipated snow level, ma x imum of 24 [...]

34 FURNACE PIPE DIAMETER TRANSITION IN VERTICAL SECTION NOT IN HORIZONTAL SECTION A93034 Fig. 38 - - Com bust ion Ai r and V ent Pi pe T ransi tion Locat ion and Elbow C onfi gurat ion UNIT OPERA TION HAZARD Failu re to fo llow this caution may resu lt in interm ittent unit oper ati on. Wh en installin g com bu stion air and v ent s ystem o f sh or[...]

35 COMBUSTION AIR PIPE BURNER BOX COMBUSTION AIR INT AKE HOUSING 3/8" ID TUBE TRAP TO OPEN DRAIN 3/16" DRILL 4 ″ (102 mm) MIN A93035 Fig. 40 - - Intake Housi ng Plug Fi tti ng Drai n 8. Install casing h ol e filler cap (factory - - s uppli ed in l oose par ts ba g) in unus ed c ombus ti on a ir pipe ca s ing hol e . Att ac hment of Comb[...]

36 or oth er materials. Screen the elbo w with a w ire mesh screen no smaller th an 3 /8 - - in ch sq uare. (S ee Fig . 41 .) Cra wlspa ce t er minat ions re quire t he ope n end of the com bust ion ai r inta ke pipe to point downwa rd. Mai nta in 3 inc hes ( 76 mm) of cl ear anc e bel ow t he fl oor joi st ins ula tion a nd 12 i nc hes ( 305 mm) a[...]

37 (304.8mm) minimum A06672 Fig. 41 - - At tic T erm inat ion (304.8 mm) minimum (76.2 mm) minimum A06673 Fig. 42 - - Cr awls pace T erm inat ion 355CA V[...]

38 (304.8mm) minimum 3” (76.2mm) minimum A06674 Fig. 43 - - Cr awls pace T erm inat ion HORIZONT AL TO ROOF HORIZONTAL TO SIDEWALL VERTICAL TO SIDEWALL VERTICAL TO ROOF VENT PIPE COMBUSTION-AIR PIPE COMBUSTION-AIR PIPE VENT PIPE COMBUSTION-AIR PIPE VENT PIPE COMBUSTION-AIR PIPE VENT PIPE 12 ″ MIN 12 ″ MIN 12 ″ MIN (304.8mm) 12 ″ MIN (304.[...]

39 NOTE : S tarting at fu rnace, slo pe v ent pip e a min imu m of 1/4 - - in . (6 mm) per lin ear ft. back to ward fu rnace with no sag s bet wee n hange rs . VENT TERM INA T ION Gen eral Combus ti on - - ai r (dir e ct V ent / 2- - pipe s yst em only) and vent pipe mus t te rmina te outs ide st ruct ure, e ithe r through si dewa ll or roof . Fo r[...]

40 T able 6 – Maxi mum All owable Expos ed V ent Pi pe Lengt h with I nsulat ion i n Winter Desig n T em pera ture Amb ien t* UNI T SIZ E WINTER DESIGN TEMPERA TURE MAXIMUM PI PE DIAM ETER IN . (MM) IN SUL A TIO N THICKN ES S† 0 3/8 1/2 3/4 1 060 20° F / - - - 7° C 2 (51) 28 (8.5) 50 (15.2) 56 (17.1) 66 (20.1) 70 (21.3) 0° F / - - - 18° C 2[...]

41 T ab le 7 – M ax imu m Allo wa ble P ipe L eng th - - Ft (M) AL TITUDE UN IT SI ZE (BTU H) D i r e c t V e n t ( 2 --- P i p e O n l y ) NUM BE R OF 90 _ ELB OWS T ermin ation Ty p e Pipe Dia In. (mm)* 1 2 3 4 5 6 0 to 2000 (0 to 610) 60,000 2 P i p e o r 2 --- I n . ( 5 1 ) Concentri c 1 - - - 1/2 (38) 50 (15.2) 45 (13.7) 40 (12.9) 35 (10.7) [...]

42 T able 7 — Maxi mum All owable Pi pe Length - - Ft (M ) (Conti nue d) AL TITUDE UN IT SI ZE (BTU H) Dir ec t V ent ( 2 - -Pipe Only) NUM BE R OF 90 _ ELB OWS T ermin ation Ty p e Pipe Dia In. (mm)* 1 2 3 4 5 6 6001 to 7000 (1829 to 2134)‡ 60,000 2 P i p e o r 2 --- I n . ( 5 1 ) Concentri c 1 - - - 1/2 (38) 35 (10.7) 30 (9.1) 25 (7.6) 20 (6.[...]

43 Ta b l e 8 – V ent T ermination Kit for Direct V ent /2 - P ipe Syst em DIRE CT VE NT (2-PIPE) TE RMINATION KIT TE RMINATION SY STEM DIA M. OF C OMBUST ION AIR A ND VENT PIPES - - - IN (mm) 2-in. ( 51 mm) Concentri c Vent K it Singl e Pe netrat ion of Wal l or Roof 1, 1 - - - 1/ 2, 2, or 2 - - - 1/2 (25, 38, 51, 64 mm) 3-in. ( 76 mm)Concent ri[...]

44 1. Fo ld heat tape in half and w rap on itself 3 times. 2. Loca te hea t t ape be twe en s ides of conde nsa te t rap ba ck. (Se e Fig. 46.) 3. Use w ire ties to secu re heat tap e in p lace. Wire ties can be posi tione d in notc hes of c ondensa te tr a p si des. ( See Fi g. 46.) 4. W ra p fi e ld dr ain pi pe wit h rem ai ning hea t ta pe, a p[...]

45 2. Lo cate setup switch S W4 o n furn ace co ntro l. (See Fig . 33.) 3. See T able 5 for setup sw itch descrip tion . (See Fig . 40 an d Fig. 49. ) 4. Re pla ce ma in fur nac e door and blower access panel. Pri me Condens ate T rap wi th W ate r UNIT OPERA TION HAZARD Failu re to fo llow this caution may resu lt in interm ittent unit op eration [...]

46 A06677 Fig. 49 - - W ir ing Diagr am 355CA V[...]

47 A99118 Fig. 50 - - I nduc er Hous ing Drain T ube A01050 Fig . 5 1 - - Fillin g C on den sate T ra p T able 9 – Furnac e Set up Switc h Des cr ipti on SETUP SWI TCH NO. SWITCH NAME NOR MA L POSITION DESC RIPTION OF USE S W 1 --- 1 Statu s Cod e Recov ery OF F T u rn O N to r etrieve up to 7 store d statu s codes f or troub leshootin g assistan[...]

48 Purge Gas Li nes If not pr evious ly done, pur ge the li ne s af ter a ll c onnec ti ons have been m ade and ch eck fo r leak s. FIRE AND EXPLOSI ON HAZARD Fai lure t o foll ow thi s war ning coul d re s ult i n a fi re , expl osion, pe rsona l injur y , or dea th. Ne ver pur ge a gas line i nto a c ombus ti on c ham ber . Ne ve r test for gas l[...]

49 and op erate the i nd ucer m oto r IDM at fu ll sp eed u ntil fl ame i s no longe r prove d. 5. Ind u cer Sp eed C han g e — If th e cycle starts in med ium heat, the furn ace co ntro l CPU red uces the in du cer speed sligh tly after flame sense. If cycle starts in hig h - - h eat, the furn ace co ntro l CP U in creases th e in du cer speed a[...]

50 hig h - - h eat. Th e furn ace co ntro l p erform s a self - - ch eck, an d verifies th e lo w - - heat an d mediu m - - h eat pressu re switch con tacts LPS and MPS ar e ope n, the n de- - ene rgi zes t he HPSR re la y to cl ose the N C conta ct. The s tar t up and s hut down f unct ions a nd dela ys desc ribe d above appl y to the 2- - st age [...]

51 nace b low er mo tor B L WM w ill dro p th e b lower airflo w to 86% of high- - cool ing ai rfl ow . High- - cool ing ai rfl ow is b a s e do nt h eA / Cs e l e c t i o ns h o w ni nF i g .4 7 . 3. Co olin g off - - dela y – W hen th e “call fo r coo ling ” is satis- fi ed and ther e is a dem and for dehumi difi cat ion, the c ool- ing bl [...]

52 A06678 Fig. 52 - - Step- - Modul ati ng Furnac e wit h Single- -Speed Ai r Condit ioni ng A06679 Fig. 53 - - Step M odulat ing Fur nace wi th T wo - - Spee d Air Condit ione r A06680 Fig. 54 - - Step M odulat ing Furnac e with Si ngle- - Spee d Heat Pump (Dual Fue l) A06681 Fig. 55 - - Step M odulat ing Furnac e with T wo- - Spee d Heat Pump (Du[...]

53 A06682 Fig. 56 - - Step M odulat ing Furnac e with Si ngle- - Spee d Heat Pump A06683 Fig. 57 - - D ual Fuel t herm ost at with Ste p - - Modul ati ng Fu rna ce an d T wo - - S peed H eat Pu mp A06684 Fig. 58 - - T wo- - Stage Ther mos tat wit h Ste p Modulat ing Furnac e and T wo - -Speed Air Condi ti oner A06685 Fig. 59 - - Single- - Stage The[...]

54 NOTE : R eference F ig. 5 2 - - 5 9: 1. He at pump M UST ha ve a hi gh pres sure swi tc h for dual fuel ap p lication s. 2. Ref er to outdoor equi pme nt Ins ta lla tion Ins truc tions for addi tiona l inf ormat ion and s etup pr oce dure . 3. Select th e “ZO NE ” po sition o n th e two - - sp eed h eat pum p cont rol. 4. Out door Air T empe[...]

55 d. J umpe r R a nd W/ W1 t her most at c onnect ions on c ontrol to start fu rn ace. e. Tur n me dium- -heat adj usti ng s cr ew c ounte rcl ockwi se (out ) to decr eas e ma nifol d pr e ss ure or cloc kwis e (in) t o increase m anifo ld pressu re. NOTE : D O N OT set mediu m - - h eat m anifo ld p ressure less than 1.3- - in. wc or m ore t han [...]

56 T able 10 – Ori fi ce Siz e* and Manif old Pr es sur e s for Gas I nput Rate (T abulate d Data Bas ed on 20,000 BTUH H igh He at / 13, 000 Btuh M ed- - He at / 8, 000 Btuh Low- - He at pe r Burne r , De rat ed 2% / 1000 Ft . ( 304.8M) A bove Se a Leve l) A VG. GAS SPECIFIC GRA VITY O F NA TURA L GA S HEA T VA LUE 0.58 0.60 0 .62 0 .64 A T ALTI[...]

57 T able 10 - - Or ifi c e Siz e * and Manif old Pr es sur e s for Gas I nput Rate (Cont inue d) (T abulate d Data Bas ed on 20,000 BTUH H igh He at / 13, 000 Btuh M ed- - He at / 8, 000 Btuh Low- - He at pe r Burne r , De rat ed 2% / 1000 Ft . ( 304.8M) A bove Se a Leve l) A VG. GA S SPECIFI C GRA V ITY OF NA TURA L GA S HEA T VA LUE 0.5 8 0.60 0[...]

58 UNIT DAMAGE HAZARD Fai lure t o foll ow t his ca ution may r esul t in c omponent dam age . DO N OT red rill o rifices. Imp rop er d rilling (b urrs, out- - of- -round holes , et c.) c an ca use exc es si ve burne r noise and mi sdi rec tion of burne r fla mes . (Se e Fig. 61.) CAUTION ! h. J umpe r R to W/W 1. i. Let fur nace run for 3 minut es[...]

59 T a b l e 1 2–G a sR a t ec uF t / H r SEC ONDS FOR 1 REVOL UTION SIZE O F TEST DIA L SEC ONDS FOR 1 REVOL UTION SIZE O F TEST DIA L 1 cu ft. 2 cu ft. 5 cu ft. 1 cu ft. 2 cu ft. 5 cu ft. 10 360 720 1800 50 72 144 360 11 327 655 1636 51 71 141 355 12 300 600 1500 52 69 138 346 13 277 555 1385 53 68 136 340 14 257 514 1286 54 67 133 333 15 240 4[...]

60 the R - - W/W 1 circu it. Accu rate amp d raw m easurem ents can b e obta ined onl y at t he the rmos ta t subba se t erm ina ls R and W . The the rmos ta t and anti c ipa tor shoul d NOT be i n the ci rcui t whi le me as uring curr ent. I f ther mosta t has no subba se, the t he rmos ta t mus t be di sc onnec te d from R and W /W 1 wir es duri [...]

61 CHECKLIST — INST ALLA TION LO A D C A LC U L AT I O N ________________ Heat ing Lo ad (B tu h) Cond ensat e Drain ________________ Coo l ing Lo ad (Bt uh) ________________ Un it Le vel o r Pi tc hed Fo rward ________________ Fu r n ac e M o d e l Se le c t io n ________________ Int ernal T ubing Conne ct ions F ree of Kink s and T raps COMBU S[...]

62 Manufacturer reserves the right to discontinue, or change at any time, s pecifications or designs without notice and without incur ring obligations. E 2008 Bryant Heatin g & Cooling System s 7310 W. Morr is St. In dianapolis, IN 46231 Print ed in U.S. A. Edition Date: 12/ 08 Replaces : II 355CAV - - - 060 - - - 3 Catal og N o. II355CA V --- [...]