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Carrier 48HJ004---007 manuel d'utilisation

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Table des matières du manuel d’utilisation

  • Page 1

    1 48HJ004 - - - 007 48HE003 - - - 006 Sin gl e - - - P ac kag e R ooftop He ati ng /C ooli ng Standard and Low NO x Units Installation Instructions CONTENTS Page SAFETY CONSIDERA TIONS 1 ........................ INST ALLA TION 1 .................................. Ste p 1 - -Provi de Unit Suppor t 2 ....................... ROOF CURB 2 ..............[...]

  • Page 2

    2 FIRE, EXPLOSI ON HAZARD Fai lure to f ollow t his wa rning c ould deat h and/or pro p erty d amag e. Dis conne ct gas pipi ng from uni t whe n le ak t est ing at pressu re g reater th an 1 / 2 p sig. Pressu res g reater th an 1 / 2 psig will cau se g as valv e d amag e resultin g in h azar dous condi tion. I f gas va lve is s ubjec ted to pre ss [...]

  • Page 3

    3 ROOF CURB ACCESSOR Y A UNIT SIZE CRRFCURB001A01 1  -2  [356] CRRFCURB002A01 2  -0  [610] NO TES: 1. Roof cu rb accessor y is shipp ed disassembled. 2. Insula ted panels. 3. Dimensions in [ ] are in millimeters. 4. Ro of curb: g alvanized steel. 5. Att ach ductwork t o curb (flanges of duct rest on curb). 6. Ser vice clearan ce: 4 f t [...]

  • Page 4

    4 Lif ting hol es ar e pr ovide d in bas e ra ils as shown in Fi g. 8 a nd 9. Ref er t o riggi ng ins truc ti ons on uni t. PROPERTY DAM AGE HAZARD Fai lure t o fol low thi s wa rning coul d res ult in pe rs onal inju ry, d eath an d pro p erty dam ag e. All pan els must be in place wh en rig gin g an d lifting . ! W ARNING posi tioni ng Ma int ai [...]

  • Page 5

    5 C0 6 111 Fig. 6 --- Rigging De tai ls UNI T 48HE OPER ATING WEIGHT DIM E NSIO NS “A” “B” “C” lb kg in. mm in. mm in. mm 003 530 240 73.69 1872 35.50 902 33.31 847 004 540 245 73.69 1872 35.50 902 33.31 847 005 560 254 73.69 1872 35.50 902 33.31 847 006 635 288 73.69 1872 35.50 902 33.31 847 UNI T 48HJ OPER ATING WEIGHT DIM E NSIO NS ?[...]

  • Page 6

    6 C061 12 Fig. 8 --- 48HJ004- - 007 Base U nit Di mens ions 48HE, HJ[...]

  • Page 7

    7 C061 13 Fig. 9 --- 48HE003- - 006 Base Un it Di mens ions 48HE, HJ[...]

  • Page 8

    8 C061 14 Fig. 10 --- Flue Hood Det ails LEGEND * Field supplied. NO TE: Follow all local codes. SP ACING OF SUPP ORTS NFGC — National Fuel Gas C ode STEE L PIP E NOMINAL DIAMETER (in.) SP ACIN G OF SUPPO RTS X DIMENSION (ft) 1 / 2 3 / 4 or 1 1 1 / 4 or larg er 6 8 10 C061 15 Fig. 1 1 --- G as P ip ing G u ide (With A ccesso ry Th ru - - th e - -[...]

  • Page 9

    9 T able 1—Phys ical Dat a 48HJ BASE U NIT 48H J HJE/ F/H/ K/ M/N 00 4 HJD/ E/F /G/H/ K/ L/M /N 005 HJD/ E/F /G/H/K /L/M /N0 06 HJ D/E/ F007 NOMI NAL C APACI TY 3 4 5 6 OPERA TING WEIGHT (lb ) Unit 530 540 560 635 Humidi-Mi Zer  Adap tive D eh u mid ifica tio n Sy ste m 15 23 25 29 EconoMi$er I V 50 50 50 50 Roof Curb 115 115 115 115 COMP RESS[...]

  • Page 10

    10 TABLE 1 — PHYSICAL DATA 48HJ ( cont) BASE U NIT 48H J HJE/ F/H/ K/ M/N 00 4 HJD/ E/F /G/H/ K/ L/M /N 005 HJ D/E /F /G/ H/K /L/ M/ N0 06 HJ D/E/ F007 FUR NACE SEC TIO N Ro llout Swi tch Cutout T emp (F)† 195 195 195 195 Burner Orifice Diameter (i n. ...drill size)** Natu ral Ga s — Std HJE .113...33 HJD .113...33 HJ D .113...33 HJD .113...3[...]

  • Page 11

    11 T able 2—PHYSICAL DA T A 48HE BASE U NIT 48H E HD /E/F 003 HE/F/H /K/M/N004 H/ E/F/ G/H/K /L/ M/ N0 05 HD/E /F/G/H/K/L /M/N006 NOMI NAL C APACI TY 2 3 4 5 OPERA TING WEIGHT (lb) Unit 530 540 560 635 Humidi-Mi Zer  Adap tive D eh u mid ifica tio n Sy ste m 13 15 23 25 EconoMi$er I V 50 50 50 50 Roof Curb 115 115 115 115 COMP RESSOR Scroll Qu[...]

  • Page 12

    12 TABLE 2 — PHYSICAL DATA 48HE ( cont) BASE U NIT 48H E HD/E/F003 HE /F/H/K/M/N004 HD/E/F/G /H/K/L /M/N005 HD/E/F/G/H /K/L/M/N006 FUR NACE SEC TIO N Ro llout Swi tch Cutout T emp (F)† 195 195 195 195 Burner Orifice Diameter (i n. ...drill size)** Natu ral Ga s — Std* HJE .113...33 HJD .113...33 HJ D .113...33 HEE .089...43 HJF .113...33 HJ E[...]

  • Page 13

    13 LEGEND C— Contactor COMP — Compres sor EQUI P — Equipmen t GND — G round IFC — Indoor (Evaporat or) F an Contactor NEC — National Electrical Code TB — Te r m i n a l B l o c k 48HE003-006 48HE004,005 48HE004,005 48HE006 C06124 Fig. 12 --- Po w er Wiring C on n ection s WIRE CONNECTIONS TO LOW-VOL TAGE SECTION COOL ST AGE 1 FA N HEA[...]

  • Page 14

    14 T able 3—Electrical Data 48HE 48HE003 - - - 006 VOL TAGE RANGE COMPRESS OR OFM COMBUSTION FAN MOT OR IFM FLA CONV OUTLET POWER SUPPL Y * MINIMUM UNIT DISCONNECT SIZE UNIT SIZE NOMINAL V --- P H --- H z IFM TYPE Min Max QTY RLA LRA QTY FLA FLA MCA MOCP ** FLA LRA 003 (2 tons) 208/230 - - - 1 - - - 60 STD 187 254 1 10.9 63 1 0.7 0.6 2.0 NO 16.3 [...]

  • Page 15

    15 T able 4—Electrical Data 48HJ 48HJ004 - - - 014 VOL TAGE RANGE COMPRESS OR (each) OFM (each) COMBUSTION FAN MOT OR IFM FLA CONV OUTLET POWER SUPPL Y * MINIMUM UNI DISCONNECT SIZE UNIT SIZE NOMINAL V --- P H --- H z IFM TYPE Min Max QTY RLA LRA QTY FLA FLA MCA MOCP ** FLA LRA 004 (3 T ons) 208/230 - - - 1 - - - 60 STD 187 254 1 16 88 1 0.7 0.6 [...]

  • Page 16

    16 T able 4—Electrical Data 48HJ (cont) 008 (71/2 T ons) 208/230 - - - 3 - - - 60 STD 187 254 2 12.4 88 2 1.4 0.6 7.5 NO 38.2 45 40 242 YES 44.2 50 46 247 HS 10.6 NO 41.3 45 44 267 YES 47.3 50 49 271 4 6 0 --- 3 --- 6 0 STD 414 508 2 6.4 44 2 0.7 0.3 3.4 NO 19.2 25 20 121 YES 21.9 25 23 123 HS 4.8 NO 20.6 25 22 134 YES 23.3 25 24 136 5 7 5 --- 3 [...]

  • Page 17

    17 Ste p 8 — Adju st F acto ry- Insta lled O ptio n s cob ra  energ y recov ery unit s Ple ase r efe r to the suppl eme nt provide d for inf orm at ion on installin g and o peratin g th e factory o p tion al C OB RA E nergy Rec overy Uni ts . Thes e units a re equi pped wit h a fa ctor y - - ins ta lle d ene r gy re cove ry unit and have di ff[...]

  • Page 18

    18 CB — Cir cuit Breaker CR — Co oling Relay DHR — Dehumidify Relay DSV — Discharge Solenoid V alve HR — He ater Relay LPS — Low P ressure Switch LSV — Liq uid So lenoid Valv e LT L O — Low T empera ture Lockout Fiel d Splice T er minal (Unmarke d) Splice F actor y Wiring Field Control Wiring Field P ower Wiring LEGEND C06128 Fig. 1[...]

  • Page 19

    19 C06131 Fig. 22 --- Outdoor- - Air Dampe r Wi th Ho o d Atta ched C06132 Fig. 23 --- Outdoor- - Air Dampe r Posit ion Sett ing premierlink  co nt r ol Th e P remierL ink co ntro ller is co mp atible w ith Carrier Co mfo rt Net work R (CCN) de vice s. This c ontr ol is des igned to all ow users th e access an d ability to ch an g e factory - - [...]

  • Page 20

    20 T a ble 5 —P remierLin k  Sens or Usage APPLICATION OU TDOOR AIR TEMPERA TURE SENSO R RETURN AIR TEMPERA TURE SENSO R OUTDOOR A IR ENTHA LPY SENSOR RETURN AIR ENTHA LPY SENSOR Different ial Dry Bulb Te m p e r a t u r e w i t h Premier Link* (Pre mier Link requires 4-20 mA Act uato r) I n c l u d e d --- CRTEMP SN001A00 R e q u i r e d --- [...]

  • Page 21

    21 PREMIERLINK CONTROL HINGED DOOR P ANEL C06017 Fig. 25 --- PremierL ink t Co n tr o ller (Insta lled ) T B-1 R Y1 Y2 W1 W2 G C X 1 2 3 4 5 6 7 8 T B-3 1 2 3 4 5 6 7 8 T B-2 1 2 3 4 5 6 7 8 J6 ANAL OG J5 0-2 0m AI N J4 DISCRETE J1 PWR J2 COMMS J9 0-20 mA J8 Relays HK50AA0 39 BRN BRN WHT WHT RED PNK PNK ORN ORN ORN ORN GRA GRA ORN RED J7 PP/MP WHT [...]

  • Page 22

    22 1. Use a 4- conduc tor , 18 or 20 A WG ca ble to conne ct the ent halpy cont rol to the Pre mier Link  c ontr oll er a nd powe r tr ans forme r . 2. Connec t the f oll owing 4 wire s from the wi re ha rnes s loc ate d in roof top unit t o the e ntha lpy c ontrol le r: a. Co n nect th e B RN w ire to th e 2 4 v ac term inal (T R1 ) o n ent hal[...]

  • Page 23

    23 NOTE : T hese in structio n s are for installin g the o p tion al EconoM i$e r I V and EconoM i$e r2 only . Re fer to the accesso ry EconoM i$e r IV or EconoMi$e r2 inst all ati on inst ruct ions whe n field installin g an Ec onoMi$e r IV or EconoM i$e r2 accessory. 1. T o rem o ve th e ex isting u nit f ilter access pan el, raise th e pane l an[...]

  • Page 24

    24 Supply Air T em per atur e (SA T) Sens or The suppl y ai r te mper atur e sens or is a 3 K the rmi stor l ocat ed at the i nlet of t he indoor fa n. (Se e Fig. 41. ) This sens or is f ac tory ins tal led. The ope ra ting ra nge of te mper atur e me as urem ent i s 0  to 158 _ F . S ee T ab le 6 fo r senso r tem peratu re/resistan ce valu es. [...]

  • Page 25

    25 FOR OCCUP ANCY CONTROL REPLACE JUMPER WITH FIELD-SUPPLIED TIME CLOCK LEGEND DCV— Dem and Controlled V entilation IAQ — Indoor Air Q uality LA — Low Ambie nt Lockout Device OA T — Outdoo r-Air T e mperature PO T — P o tentiomete r RA T — Return-Air T emperature P otentiom eter D ef aults Settings: P ower Exhaust Middle Minimum P o s. [...]

  • Page 26

    26 Dif fe re ntial Ent halphy Contr ol For dif fe rent ial e nthal py contr ol, the Ec onoMi $er IV cont rol le r use s two entha lpy se nsors ( HH57AC078 and CRENTDI F004A00), one in the outs ide ai r and one i n the re turn ai r duct . The EconoMi $er I V contr olle r compa re s the outdoor ai r ent halpy t o the r etur n ai r entha lpy to det er[...]

  • Page 27

    27 activatio n to allo w th e d amp ers to o p en. T h is delay allows th e dam per to reach the ap p rop riate po sition to av o id u n n ecessary fan over load. Mi nimum Pos iti on Contr ol Th ere is a min im um d amp er p ositio n p oten tio meter o n th e EconoM i$e r IV cont roll er . (Se e Fig. 42.) The mi nimum da mper po sition m ain tains [...]

  • Page 28

    28 CONTROL CURVE A B C D CONTROL POINT APPROX. deg. F (deg. C) AT 50% RH 73 (23) 70 (21) 67 (19) 63 (17) 1 2 1 4 1 6 1 8 2 0 2 2 2 4 26 28 30 32 3 4 3 6 3 8 40 42 4 4 46 9 0 1 0 0 80 70 6 0 50 4 0 30 20 1 0 ENTHALPY BTU PER POUND DRY AIR 85 (29) 90 (32) 95 (35) 100 (38) 105 (41) 11 0 (43) 35 (2) 35 (2) 40 (4) 40 (4) 105 (41) 11 0 (43) 45 (7) 45 (7)[...]

  • Page 29

    29 TR1 24 V ac COM TR 24 Va c HOT 12 3 4 5 EF EF1 + _ P1 T1 P T N EXH 2V 10V EXH Set Set 2V 10V 2V 10V DCV DCV Free Cool B C A D SO+ SR+ SR SO AQ1 AQ DCV Min Pos Open Max N1 C06038 Fig. 46 --- EconoMi $er IV Contr o l 0 1000 2000 3000 4000 5000 6000 2345678 800 ppm 900 ppm 1000 ppm 1100 ppm RANGE CONFIGURA TION (ppm) DAMPER VOL TAGE FOR MAX VENTILA[...]

  • Page 30

    30 T able 8—C O 2 Sens or Standar d Sett ings SET T ING EQUI PMEN T OU TPUT VE NTILATION RA TE (cfm/Person ) ANAL OG OUTPU T CO 2 CON TROL RAN GE (ppm) OPTIONAL RELA Y SETPO IN T (ppm) RELA Y HYSTERESI S (ppm) 1 Inter face w/ Stan dard Bui lding Co ntrol Syst em Proporti onal An y 0-10V 4-20 mA 0-2000 1000 50 2 Proporti onal An y 2-10V 7-20 mA 0-[...]

  • Page 31

    31 T able 9— 48HJ and 48he Fan R pm at Mot or Pull ey Set ting W ith St andard Mot or* UNI T 48HJ 48HE MOTOR PULLEY TUR NS OPEN 0 1 / 2 1 1 1 / 2 2 2 1 / 2 3 3 1 / 2 4 4 1 / 2 5 5 1 / 2 6 003 936 906 876 846 816 786 756 726 696 666 639 — — 004 1044 1008 971 935 898 862 826 789 753 716 680 — — 005 1185 1144 1102 1061 1019 978 936 895 853 8[...]

  • Page 32

    32 T able 14—48HJ Outdoor Sound Power ( T otal Unit ) UNI T 48HJ ARI RA TING (dec ibels) OCTAVE BANDS 63 125 250 500 1000 2000 4000 8000 004,005 76 55.9 66.0 64.0 66.2 68.4 64.5 61.7 57.3 006,007 80 59.1 68.9 68.7 71.9 74.0 68.9 65.7 59.0 LEGEND ARI - - - Air Cond itioning and Refr ige ration Insti tute T able 15—48HE Outdoor Sound Power ( T ot[...]

  • Page 33

    33 T able 17—Fan Per formanc e 48HJ004, 48HE004 — V er ti cal Dis charge Uni ts; St andard Motor (Belt D rive)* AIRFL OW CFM EXT ERNAL ST ATIC PR ES SUR E (in. wg) 0.2 0. 4 0. 6 0.8 1.0 Rpm Bhp Watts Rpm Bhp Watts Rpm Bhp Watts Rpm Bhp Wa tts Rpm Bhp Watts 900 567 0.15 145 688 0.22 222 786 0.30 296 871 0.37 368 947 0.44 437 1000 599 0.18 177 71[...]

  • Page 34

    34 T able 19— Fan Per for mance 48HJ005, 48HE005 — V er tic al Dis char ge Units ; Standard Mot or (Belt D rive)* AIRF LOW CFM EX TE RNAL ST A TIC PRE S SUR E (i n. wg) 0.2 0.4 0.6 0.8 1.0 Rpm Bhp Wa tts Rpm Bh p W atts Rpm Bhp W atts Rpm Bhp W atts Rpm Bhp W atts 1200 666 0.26 257 778 0.37 367 871 0.47 471 952 0.57 572 1025 0.67 670 1300 701 0[...]

  • Page 35

    35 T able 20—Fan Per formanc e 48HJ005, 48HE005 — V ert ical Di schar ge Units ; High-St ati c Motor (Be lt Dri ve)* AIRFL OW CFM EXT ERNAL ST ATIC PR ES SUR E (in. wg) 0.2 0. 4 0. 6 0.8 1.0 Rpm Bhp Watts Rpm Bhp Watts Rpm Bhp Watts Rpm Bhp Wa tts Rpm Bhp Watts 1200 666 0.26 257 778 0.37 367 871 0.47 471 952 0.57 572 1025 0.67 670 1300 701 0.31[...]

  • Page 36

    36 T able 22—Fan Per formanc e 48HJ006, 48HE006 Thr ee -Phase — V er tic al Dis charge Uni ts; Standar d Mot o r (Be lt Dri ve) * AIRFL OW CFM EXT ERNAL ST ATIC PR ES SUR E (in. wg) 0.2 0. 4 0. 6 0.8 1.0 Rpm Bhp Watts Rpm Bhp Watts Rpm Bhp Watts Rpm Bhp Wa tts Rpm Bhp Watts 1500 848 0.42 371 968 0.55 486 1069 0.68 600 1158 0.80 715 1238 0.94 83[...]

  • Page 37

    37 T able 24—Fan Per formanc e 48HJ007 — V e rt ic al Dis charge Uni ts; St a ndar d Motor ( Bel t Dri ve)* AIRFL OW CFM EXT ERNAL ST ATIC PR ES SUR E (in. wg) 0.2 0. 4 0. 6 0.8 1.0 Rpm Bhp Watts Rpm Bhp Watts Rpm Bhp Watts Rpm Bhp Wa tts Rpm Bhp Watts 1800 967 0.63 563 1075 0.80 715 1170 0.97 861 1255 1.13 1002 1333 1.28 1139 1900 1008 0.72 64[...]

  • Page 38

    38 T able 25—Fan Per formanc e 48HJ007 — V er tic al Disc harge Unit s; High- Stati c Mot or (Be lt Dr ive) * AIRFL OW CFM EXT ERNAL ST ATIC PR ES SUR E (in. wg) 0.2 0. 4 0. 6 0.8 1.0 Rpm Bhp Watts Rpm Bhp Watts Rpm Bhp Watts Rpm Bhp Wa tts Rpm Bhp Watts 1800 967 0.63 563 1075 0.80 715 1170 0.97 861 1255 1.13 1002 1333 1.28 1139 1900 1008 0.72 [...]

  • Page 39

    39 T able 27—Fan Per form ance 48HJ004, 48HE004 — Hori zont al Dis char ge Unit s; St andard Motor (Belt D rive)* AIRFL OW CFM EXT ERNAL ST ATIC PR ES SUR E (in. wg) 0.2 0. 4 0. 6 0.8 1.0 Rpm Bhp Watts Rpm Bhp Watts Rpm Bhp Watts Rpm Bhp Wa tts Rpm Bhp Watts 900 553 0.14 134 681 0.22 221 782 0.32 316 870 0.42 417 948 0.53 526 1000 582 0.16 163 [...]

  • Page 40

    40 T able 29—Fan Per form ance 48HJ005, 48HE005 — Hori zont al Dis char ge Unit s; St andard Motor (Belt D rive)* AIRFL OW CFM EXT ERNAL ST ATIC PR ES SUR E (in. wg) 0.2 0. 4 0. 6 0.8 1.0 Rpm Bhp Watts Rpm Bhp Watts Rpm Bhp Watts Rpm Bhp Wa tts Rpm Bhp Watts 1200 643 0.23 234 762 0.34 343 859 0.46 458 944 0.58 579 1020 0.71 705 1300 675 0.28 27[...]

  • Page 41

    41 T able 31—Fan Per form ance 48HJ006, 48HE006 Singl e- Phase — Hori zontal Di sc harge Uni ts ; Standar d Mot o r (Be lt Dri ve) * AIRFL OW CFM EXT ERNAL ST ATIC PR ES SUR E (in. wg) 0.2 0. 4 0. 6 0.8 1.0 Rpm Bhp Watts Rpm Bhp Watts Rpm Bhp Watts Rpm Bhp Wa tts Rpm Bhp Watts 1500 800 0.39 350 904 0.49 438 999 0.60 535 1087 0.72 640 1169 0.85 [...]

  • Page 42

    42 T able 32—Fan Per formanc e 48HJ006, 48HE006 Thr ee -Phase — Hor iz o ntal Di schar ge Units ; Standar d Mot o r (Be lt Dri ve) * AIRFL OW CFM EXT ERNAL ST ATIC PR ES SUR E (in. wg) 0.2 0. 4 0. 6 0.8 1.0 Rpm Bhp Watts Rpm Bhp Watts Rpm Bhp Watts Rpm Bhp Wa tts Rpm Bhp Watts 1500 800 0.39 350 904 0.49 438 999 0.60 535 1087 0.72 640 1169 0.85 [...]

  • Page 43

    43 T able 34—Fan Per formanc e 48HJ007 — Hori zontal Di sc harge Uni ts ; Standar d Motor (Be lt Dri ve)* AIRFL OW CFM EXT ERNAL ST ATIC PR ES SUR E (in. wg) 0.2 0. 4 0. 6 0.8 1.0 Rpm Bhp Watts Rpm Bhp Watts Rpm Bhp Watts Rpm Bhp Wa tts Rpm Bhp Watts 1800 913 0.64 569 1010 0.80 715 1098 0.98 869 1178 1.16 1032 1252 1.35 1203 1900 952 0.73 652 1[...]

  • Page 44

    44 T able 35—Fan Per form ance 48HJ007 — Hori zont al Disc harge Uni ts ; High- Stat ic Mot or (Be lt Dr ive) * AIRFL OW CFM EXT ERNAL ST ATIC PR ES SUR E (in. wg) 0.2 0. 4 0. 6 0.8 1.0 Rpm Bhp Watts Rpm Bhp Watts Rpm Bhp Watts Rpm Bhp Wa tts Rpm Bhp Watts 1800 913 0.64 569 1010 0.80 715 1098 0.98 869 1178 1.16 1032 1252 1.35 1203 1900 952 0.73[...]

  • Page 45

    45 PRE -ST AR T -UP FIRE, EXPLOSION, ELECTRI CAL SHOC K HAZA RD Fai lure t o fol low thi s wa rning coul d res ult in pe rs onal inj ury , dea th a nd/or prope rty da mage : 1. Follow r ecogni ze d sa fe ty pra cti ces a nd wea r prot ec tive goggle s whe n che cking or ser vici ng a re fri gera nt sys tem . 2. Do not opera te the c ompre ss or or [...]

  • Page 46

    46 2. Tur n of f powe r t o the unit a nd tag di sc onnec t. 3. Reve rs e any two of the uni t power l eads . 4. Tur n on powe r t o the uni t a nd ene rgi ze the compr es sor . The suct ion and dis cha rge pre ssur e leve ls should now move t o their n o rmal start-u p lev els. NOTE : Whe n the com pre ss or is r otat ing in the w rong di re cti o[...]

  • Page 47

    47 A ma ximum of 9 t ri ps c an oc cur , e xtendi ng the eva porat or- fan of f del ay to 180 s ec onds. T o re stor e the ori ginal de faul t va lue , r es et the powe r to the unit . T o Shut Of f Unit —Se t sys te m se le ct or swit ch at of f posi tion. Resettin g h eatin g selecto r lev er belo w ro o m tem peratu re will te mpora ri ly shut[...]

  • Page 48

    48 S If SA T > SASP + 5 a nd e conomiz er pos ition >80 %, ec onomiz er wil l go to m ini mum pos ition fo r 3 min utes or unti l SA T > 68 _ F. S If com pre ssor one i s on the n se cond s tage of mech an ical coo lin g w ill be en ergized ; oth erw ise the first stage w ill b e energized . S Int egra tor re set s. S Econom iz er opens a [...]

  • Page 49

    49 S SP T reading is availab le S OA T ± SPT S Econom iz er Pos itio n is NOT forced If a ny of the a bove cond itions are not met , the e conomi ze r sub master r eference (E CS R) is set to m ax imu m lim it and th e dam per move s to mini mum posit ion. The opera ting seque nce is com p lete. The EC SR is recalculated ev ery 30 sec onds. If a n[...]

  • Page 50

    50 C06136 Fig. 54 --- Humidi- - MiZer Subc ooling Mo de O pera tio n C06137 Fig. 55 --- Hu mi di - - M izer t Hot Gas Rehe at Mode Oper ati on Hot Gas Re heat Mode Wh en the hu mid ity lev els in th e sp ace require h u mid ity con tro l, a hot gas s ole noid val ve (s pec if ic t o hot gas re hea t mode only) w il l open t o bypass a por tion of h[...]

  • Page 51

    51 T able 39—Hum idi -Mi zer Adapt ive De humidi fi cat ion Syste m Sequenc e of Oper ati on and Syst em Res ponse — Si ngle Com pre ssor Uni t (48HE003- - 006, 48HJ004-007) THE RMOSTAT INPUT EC ONOMIZER FU NCTION 48HE, HJ UNI T OPERATI ON H Y1 Y2 OAT . < Economizer Set P oint Economize r Comp . 1 Subcoolin g Mode Ho t Gas Reheat Mod e Off ?[...]

  • Page 52

    52 Ste p 7 — Los s- -of- - Charge Swi tch The los s-of -cha r ge s wit ch conta ins a Schr ade r cor e depre ssor , and is located on th e co mp ressor liqu id lin e. This sw itch o pen s at 7 psig an d clo ses at 2 2 psig . No ad justm ents are necessary . Ste p 8 — Freeze- - S tat Th e freeze-stat is a bim etal temp eratu re-sensin g switch t[...]

  • Page 53

    53 C06141 Fig. 62 --- Co o ling C ha rg ing C ha rt, Standar d 48HJ006 C06142 Fig. 63 --- Co o ling C ha rg ing C ha rt, Standar d 48HJ007 C06143 Fig. 64 --- Cooli ng Charging C hart , 48HJ004 wit h Op tion a l Hu mid i - - M iZer A da p tive D ehu mid ificatio n S ystem C06144 Fig. 65 --- Cooli ng Charging C hart , 48HJ005 wit h Op tion a l Hu mid[...]

  • Page 54

    54 Th e ch arts reference a liq u id p ressure (p sig ) and temperatu re at a point be twee n the c ondens er coi l and t he subc ooli ng/re heat dehum idi fi ca tion c oil. A t ap i s pr ovided on t he uni t t o me as ure li quid pr es sure e nter ing the subc ooling/ rehe at de humidi fi ca tion coil. IMPOR T ANT : The s ubcool ing mode cha rgi n[...]

  • Page 55

    55 48HE - - 2 TO N CHARGI NG CHART 65.0 70.0 75.0 80.0 85.0 90.0 95.0 100.0 105.0 42 52 62 72 S u c t i o nL i n e T e m p( d e gF ) Suction Line Pr essure (psig) 448.0 498.0 548.0 598.0 648.0 698.0 5.5 10.5 15.5 20.5 25.5 Suction Line T em peratur e (deg C) Suction Line Pr essure (kpa) FC 125 52 115 4 6 105 41 95 35 85 29 75 24 C06148 Fig. 68 --- [...]

  • Page 56

    56 by re moving one s et sc rew . The n r emove nuts t hat hold mo tor to mo un tin g plate. 6. T o rein stall, rev erse th e pro ced ure o u tlined a bove. Ste p 12 — Li mit Swit ch Rem ov e b lo wer access p anel (F ig. 8 ). Li mit sw itch is l ocated o n the fan deck. Ste p 13 — Burn er Ig nitio n Un it is equ ip ped with a direct sp ark ig [...]

  • Page 57

    57 LO W HEA T 48HJE/H004, 48HJ D/G005-00 7 — 72,000 BTUH INPUT 48HJM004 , 48HJL005 ,006 — 60,000 BTUH INPUT M E D I U MA N DH I G HH E A T 48HJE/H00 5-007, 48H JF/K004 — 115,000 BTUH I NPUT 48HJF /K0 05-00 7 — 1 50,0 00 B TUH IN PUT 48HJM00 5,006; 48HJN004 — 90,0 00 BTUH INPUT 48HJN005,0 06 — 120,000 BTUH INPUT 48HEF003, 48HEE004, 48HED[...]

  • Page 58

    58 LEGEND OFM — Outdoo r (Cond enser) Fan Motor OLR — Overload Relay P— Plug PL — Plug Assembly QT — Quadrupl e T erminal RS — Rollout Switch SA T — Supp ly Air T empe rature Sen sor TRAN — T ran sformer Field Splice Marked Wi re T erminal (Mark ed) T erminal (Unm arke d) T erminal Bloc k C— Contactor , Compressor CAP — Ca pacit[...]

  • Page 59

    59 TROUBLES HOOTING Ste p 1 — Uni t T r ouble shoot ing Ref er t o T abl es 35-39 for unit troubl eshoot ing det ai ls. Ste p 2 — Ec onomi$e r IV T r oubles hooting See T able 40 for Ec onoMi$e r IV logi c. A func tiona l vie w of t he Ec onoMi $er IV i s shown in Fig. 69. T ypic al se tt ings , se nsor ra nges , and jumpe r posit ions ar e al [...]

  • Page 60

    60 3. S et D CV max imu m po sitio n po ten tiom eter to p revio u s setting . 4. Set mi nimum pos it ion, DCV se t point , and exha ust po ten tiom eters to p rev iou s settin gs. 5. Remove 620-ohm re si stor from t er minal s S R and + . 6. Remove 1.2 kilo- ohm chec kout re sis tor f rom t er mina ls S O and +. I f use d, rec onnect s ens or fr o[...]

  • Page 61

    61 T ab le 4 2— Heat ing Serv ice An aly sis PROBLEM CAUSE REMED Y Burners Will Not Igni te. Mi sali gne d spark e lect rodes. Check flame ignition and sensor electr ode pos itionin g. Ad just as needed. No g as at main burner s. Check gas line for air purge as neces sary . After purg ing gas line of air , allow gas to d iss ipate f or at le ast [...]

  • Page 62

    62 T ab le 4 5— Co o ling Serv ice An aly sis PROBLEM CAUSE REMED Y Compressor a nd Condenser Fan Will Not S tart. Pow er f ai lu re. Cal l pow er c ompa n y . Fuse blo wn or ci rcui t bre ake r tri pped. Replac e fuse or res et circuit bre aker . Defe ctive thermo stat, co ntactor , transf ormer , or cont rol rel ay . Re pla ce com pon en t. Ins[...]

  • Page 63

    63 T able 46—Ec onoMi$e r IV Input/ Output Logic INPUTS OUT PUTS Demand Co ntrol Ventilation (DCV) Enth alpy* Y1 Y2 Compressor NT e r m i n a l † Outdoor Ret urn Stage 1 Stage 2 Occupied U noccu pied Damper Belo w set (DCV LE D Off) High (F ree C ooling LED Off ) Low On On On On Min imum p osition Clo se d On Off On Off Off Off Off Off Low (F r[...]

  • Page 64

    64 ST ART -UP CHECKLIS T (Remov e a nd Store in J ob File ) I. PRELIMIN AR Y INFOR MA TION MODEL NO. : SERI AL NO.: DA TE : TE CHNICI AN: II. PRE - ST ART - UP (inser t checkm ark in bo x as each it em is comp leted) j VERI FY THA T JOBSI TE VOL T AGE AGR EE S WIT H VOL T AGE L IST ED ON R A TING PL A TE j VERI FY THA T AL L P ACKAGING MA T ER IALS[...]