Carrier 48P2 manual

Manufacturer reserves the right to disco ntinue, or change at any time, specifications or de signs without notice and without inc urring obligations. Catalog No . 04-53480079-0 1 Printed in U .S.A. F orm 48P-4SI Pg 1 11-10 Replaces: 48P-3SI Installation Instr uctions CONTENTS Page GENERAL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [...]

2 INST ALLA TION Step 1 — P erf orm Jobsite Survey — Complete the following checks before installation. 1. Consult local building codes and the NEC (National Electrical Code) (ANSI/NFP A [American National Stan- dards Institute/National Fire Protection Association] 70) for special installation requirements. 2. Determine unit location (from proj[...]

3 Table 1A — Physical Data 48P2,P3,P4,P503 0-050 LE GEND * 460-3-60 only . †See T ab le 7 — P o wer E xhaust F a n Driv e Data on pa ge 9 f or more i nf ormation. BASE UNIT 48P2,P3,P4,P50 30 48P2,P3,P4, P5035 NOMINAL CAP ACITY (tons) 30 35 OPERA TING WEIGHT (lb) Standard Chassi s Extended Chassis Sta ndard Chassis Exten ded Chassis Base Unit [...]

4 Table 1A — Physical Data 48P2,P3,P4,P503 0-050 (cont) LE GEND * 460-3-60 only . †See T ab le 7 — P o wer E xhaust F an Driv e Data on pa ge 9 f or more in formation . BASE UNIT 48P2,P3, P4,P5040 48P2, P3,P4,P5050 NOMINAL CAP ACITY (tons) 40 50 OPERA TING WEIGHT (lb) Standard C hassis Extended Chassi s Standard Chassis Extend ed Chassis Base[...]

5 Table 1B — Physical Data 48P2,P3,P4,P505 5-070 LE GEND *See T ab le 7 — P o wer Ex haust F an Driv e Data o n page 9 f or mo re inf ormation. BASE U NIT 48P2,P 3,P4,P5055 48P2,P3,P4,P5 060 48P2,P3,P4,P5 070 NOMINAL CAP ACITY (tons) 55 60 70 OPERA TING WEIGHT (lb) Standard Cha ssis Extended Ch assis Standard Ch assis E xtended Chassis Standard[...]

6 Table 1C — Physical Data 48P2,P3,P4,P507 5-100 LEGEND *See T abl e 3 — High-Capacity P o wer Exhaust Data f or more inf ormation. See T ab le 7 — P o wer Exhaust F an Dr iv e Data on page 9 f or more inf ormation. B ASE UNIT 48P2,P3,P4,P5075 48P2,P3,P4,P5090 48P2,P3,P4,P5100 NOMINAL CAP ACITY (tons) 75 90 100 OPERA T ING WEIGHT (lb) Standar[...]

7 Table 1C — Physical Data 48P2,P3,P4,P507 5-100 (cont) LEGEND *See T able 3 — High-Capacity P ower Exhaust Data f or more inf ormation. See T ab le 7 — P ow er Exhaust F an Driv e Data on page 9 f or more inf ormation. Table 2 — Optional Re turn Fan Physical Data (48P075 -100 Only) Table 3 — Optional High-Capacit y Power Exhaust Physical[...]

8 Table 5 — Operating Weights of Options and Accessori es (lb) *Includes hood. Table 6 — Supply Fan Drive Data *Sizes 040,050 only . NO TE: P ar t numbers are Browning Manuf acturing Cor p . reference . OPTION OR A CCESSORY 48/50P UNI T SIZE 030,035 040,050 055 060 070 075 090 100 Condenser Section Roof Curb — — 540 540 625 625 6 25 625 Eco[...]

9 Table 7 — Power Exhaust Fan Driv e Data *High-efficiency motor option. †Premium-efficiency motor option. **Applies to both motor options. NO TE: P ar t numbers are Browning Manuf acturing Cor p . ref erence. Table 8 — Optional High-Ca pacity Power Exhau st Fan Drive Data Table 9 — Optional Return Fan Dr ive Data TOT A L HP MO T OR QTY ...[...]

10 Fig. 1 — Roof Curb — Sizes 030-050[...]

11 Fig. 2 — Roof Curb — Sizes 055, 060[...]

12 Fig. 3 — Roof Curb — Sizes 070-1 00[...]

13 Fig. 4 — Condenser Sectio n Roof Curb (Sizes 070 and 075)[...]

14 Fig. 5 — Condenser Section Roof Curb (Sizes 090 and 100)[...]

15 9 3/4" "X"- NO GASKET 4 REF . DET AIL A-A A A "X" 4 1 3 2 CONDENSER END SUPPORT 5 5 Fig. 6 — Gasket Location on Roof Curb (Size 070-100 Unit s) Fig. 7 — Gasket Location — Conde nser Section Roof Curb (Size 070-1 00 Units)[...]

16 Step 8 — Connect Condensate Drain — The re are a total of five drain conne ctions required on each unit: one primary drain (on right-hand side of the unit) and four second- ary drains (two on each side of unit). PR IM ARY DR AI N — The primary drain is a 2-in. FPT pipe connection located on the right-hand side of the unit looking at the un[...]

17 4 8 ZZ501077 2.0 NO TE: Ri g with four cable s and s pread with tw o 95 inch (241 3 MM) s preader bar s . ALL P ANEL S MU S T BE IN PLA CE WHEN RIGGING. CAUTION - NOTICE TO RIGGERS: 1,2,3 4 5 LBS KGS IN MM IN MM IN M M 48P 2,3,4,5 B,D,H 48 P2, P3, P4, P5 030 6019 2730 170.6 4334 45.8 1164 166.4 4227 Vertical Supply/ Return 035 6169 2798 170.9 43[...]

18 4 8 ZZ50107 8 2.0 NO TE: Ri g with f our cable s and s pread with tw o 95 inch (241 3 MM) s preader bar s . ALL P ANEL S MU S T BE IN PLA CE WHEN RIGGING. CAUTION - NOTICE TO RIGGERS: M M N I M M N I M M N I S G K S B L 5 4 3 , 2 , 1 50P 2,3,4,5 -,B,C 50 P2, P3, P4, P5 075 11921 5407 220.1 5590 40.2 1021 255.7 6495 Vert Supply/Return w/ RE Fan 0[...]

19 3 2 A B 4 1 NO TE: The weight distrib ution and center of gra vity inf ormation include the impact of an economiz er , the larg est indoor f an mot or , and a VFD (variabl e frequency drive). On u nits with a ret urn fan or hig h-capacity po wer e xhaus t, the largest motors and VFD are also included. These weights do n ot include the impa ct of[...]

20 Locate the four 1 1 / 4 -in. drain coupling assemblies and mounting screws (shipped in a bag taped to the b asepan in the supply fan section, located be hind the access panel marked F AN SECTION). The drain couplings are a 10-gage plate with a 1 1 / 4 in. half coupling welded to the plate. After final positioning of the unit, perform the followi[...]

21 Fig. 12 — Base Unit Dime nsional Drawing — 48 P2,P3030,035 (Standard Ch assis Unit Shown) a48-8613[...]

22 Fig. 13 — Base Unit Dime nsional Drawing — 48 P4,P5030,035 (Standard Ch assis Unit Shown) a48-8614[...]

23 Fig. 14 — Base Unit Dimensional Dr awing — 48P2,P3040- 050 (Standard Chassi s Unit Shown) a48-8615[...]

24 Fig. 15 — Base Unit Dimensional Dr awing — 48P4,P5040- 050 (Standard Chassi s Unit Shown) a48-8616[...]

25 Fig. 16 — Base Unit Dime nsional Drawing — 48 P2,P3055,060 (Standard Ch assis Unit Shown) a48-8617[...]

26 Fig. 17 — Base Unit Dime nsional Drawing — 48 P4,P5055,060 (Standard Ch assis Unit Shown) a48-8618[...]

27 Fig. 18 — Base Unit Dimensiona l Drawing — 48P2,P3070 (Standard Chassi s Unit Shown) a48-8619[...]

28 Fig. 19 — Base Unit Dimensiona l Drawing — 48P4,P5070 (Standard Chassi s Unit Shown) a48-8620[...]

29 Fig. 20 — Base Unit Dimensi onal Drawing — 48P2,P3075-1 00 (Standard Chassis Uni t with Optional High- Capacity Power Exhaust Shown ) a48-8621[...]

30 Fig. 21 — Base Unit Dimensional Drawing — 48P4,P5075-10 0 (Standard Chassis Un it with Optional Return Fan Shown ) a48-8622[...]

31 A B Fig. 22 — Units with Op tional Extend ed Chassis — Location of Coil T rac ks AUXILIAR Y COIL LOCA TION (in.) UNIT SIZES DIST ANCE A HEIGHT B 030,035 123.0 6.6 040,050 156.8 6.6 055-070 200.4 6.6 075-100 200.4 6.6 075-100 with High- Capacity Po wer Exhaust 279.2 6.6 a48457 A 2” MIN. (51 mm) Fig. 23 — Primary Drain Connection A = 4-in.[...]

32 Step 9 — Install Outdoor Hoods (Units without Optional High-Capacity P ower Exhaust) UNIT SIZES 030-050 25% Outdoor-Air Hoods (Units without Economizer Option) (Fig. 28) 1. Outdoor -air hoods are shipped bolted to the unit in a ship- ping position. Remove the 6 screws holding each 25% outdoor air hood shipping cover in place. 2. Remove the hol[...]

33 Step 10 — Install Economizer Hoods (Units with Optional High-Capacity P ower Exhaust) — The economizer uses a total of 4 outdoor intake hoods, 2 on each side of the unit. See Fig. 36. T wo small hoods (one per side) are factory-installed and are pivoted inside the unit chassis for shipment. T wo large hoods are shipped in packages located in[...]

34 ACCESS DOOR PE VFD EXHAUST AIR LARGE ECONOMIZER HOOD LOCA TION AUXILIARY CONTROL BOX POWER EXHAUST ACCESS DOOR SMALL ECONOMIZER HOOD LOCA TION LEGEND PE VFD — P o wer Exhaust V ar iab le F requency Drive Fig. 36 — Economizer Hood Location — Un its with High-Capacity P ower Exhaust APPL Y R TV IN THE INDICATED AREA S AND BOTH END S OF BOTTO[...]

35 Step 11 — Route Field Wiring UN IT SIZ E S 03 0- 06 0 — Field wiring can be brought into the unit through the basepan and roof curb or through the corner post in the side of the unit next to the control box. A 3 1 / 2 -in. FPT coupling for field power and a 3 / 4 -in. FPT coupling for 24 v control wiring are provided in the basepan. There ar[...]

36 RECOMMENDED FIELD- S UPPLIED DI S CONNECT LOCA TION CONTROL BO X CONTROL BO X RECOMMENDED FIELD- S UPPLIED DI S CONNECT LOCA TION Fig. 39 — Disconnect Locatio n — Size 040-060 Units CA UTION Use care when drilling in to cor ner post to av oid damage to con- denser coil. Fig. 40 — Disconnect Loca tion — Size 070-100 Units CA UTION Use car[...]

37 23 13 12 1 1 22 21 DISCONNECT PER NEC EQUIP GND FIELD WIRE F ACT ORY WIRE F ACT OR Y -IN S T ALLED DI S CONNECT HANDLE LOCA TION F ACT OR Y -IN S T ALLED DI S CONNECT (HIDDEN) 21 11 22 12 2 3 1 3 DI S CONNECT PER NEC EQUIP GND TB1 Fig. 43 — Field Po wer Wiring Conne ctions for Factory-In stalled Disconne ct Fig. 42 — Factory-Inst alled Disco[...]

38 Table 10 — Elec trical Data, 48P2,P3,P4,P5030 Uni ts VO L T AG E 3 PH, 60 Hz VO L T AG E RANGE COMPRESSOR CONDENSER F AN MOT OR EV APORA T OR F AN MOT OR PO WER EXHA UST PO WER SUPPL Y No. A1 No. B1 Min Max Qty RLA (ea) LRA (ea) Qty RLA (ea) LRA (ea) Qty FLA Hp FLA Qty Hp (ea) FLA (ea) MCA FUSE OR HA CR BRKR* 208/230 187 253 1 51.3 300 1 51.3 [...]

39 Table 10 — Electri cal Data, 48 P2,P3,P4,P503 0 Units (cont) LEGE ND * Used to determine minimum disconnect per NEC (National Electrical Code). NO TE: Units use 1 (low heat) or 2 (high heat) comb ustion f an motors rat ed at 0.3 FLA each. VO L T AG E 3 PH, 60 Hz V O LTA G E RANGE COMPRESSOR CONDENSER F AN MOT OR EV APORA T OR F AN MOT OR PO WE[...]

40 Table 11 — Elec trical Data, 48P2,P3,P4,P5035 Uni ts VO LT AG E 3 PH, 60 Hz VO L T AG E RANGE COMPRESSOR CONDENSER FA N M O TO R EV APORA TOR F AN MO T OR PO WER EXHA UST PO WER SUPPL Y No. A1 No. B1 Min Max Qty RLA (ea) LRA (ea) Qty RLA (ea) LRA (ea) Qty FLA Hp FLA Qty Hp (ea) FLA (ea) MCA FUSE OR HA CR BRKR* 208/230 187 253 1 55.8 340 1 55.8[...]

41 Table 11 — Electri cal Data, 48 P2,P3,P4,P503 5 Units (cont) LEGE ND * Used to determine minimum disconnect per NEC (National Electrical Code). NO TE: Units use 1 (low heat) or 2 (high heat) comb ustion f an motors rat ed at 0.3 FLA each. VO LT AG E 3 PH, 60 Hz VO L T AG E RANGE COMPRESSOR CONDENSER FA N M O TO R EV APORA TOR F AN MO T OR PO W[...]

42 Table 12 — Elec trical Data, 48P2,P3,P4,P5040 Uni ts VO L T AGE 3 PH, 60 Hz VO L T AG E RANGE COMPRESSOR CONDENSER F AN MOT OR EV APORA TOR F AN MOT OR PO WER EXHA UST PO WER SUPPL Y No. A1 No. B1 Min Max Qty RLA (ea) LRA (ea) Qty RLA (ea) LRA (ea) Qty FLA Hp FLA Qty Hp (ea) FLA (ea) MCA FUSE OR HA CR BRKR* 208/230 187 253 1 55.8 340 2 30.1 22[...]

43 Table 12 — Electri cal Data, 48 P2,P3,P4,P504 0 Units (cont) LEGE ND * Used to determine minimum disconnect per NEC (National Electrical Code). NO TE: Units use 1 (low heat) or 2 (high heat) comb ustion f an motors rat ed at 0.3 FLA each. VO L T AGE 3 PH, 60 Hz VO L T AG E RANGE COMPRESSOR CONDENSER F AN MOT OR EV A PORA TOR F AN MOT OR PO WER[...]

44 Table 13 — Elec trical Data, 48P2,P3,P4,P5050 Uni ts VO L T AGE 3 PH, 60 Hz VO L T AG E RANGE COMPRESSOR CONDENSER F AN MOT OR EV APORA TOR F AN MOT OR PO WER EXHA UST PO WER SUPPL Y No. A1 No. B1 Min Max Qty RLA (ea) LRA (ea) Qty RLA (ea) LRA (ea) Qty FLA Hp FLA Qty Hp (ea) FLA (ea) MCA FUSE OR HA CR BRKR* 208/230 187 253 2 33.3 239 2 48.1 24[...]

45 Table 13 — Electri cal Data, 48 P2,P3,P4,P505 0 Units (cont) LEGE ND * Used to determine minimum disconnect per NEC (National Electrical Code). NO TE: Units use 1 (low heat) or 2 (high heat) comb ustion f an motors rat ed at 0.3 FLA each. VO L T AGE 3 PH, 60 Hz VO L T AG E RANGE COMPRESSOR CONDENSER F AN MOT OR EV A PORA TOR F AN MOT OR PO WER[...]

46 Table 14 — Elec trical Data, 48P2,P3,P4,P5055 Uni ts LEGE ND * Used to determine minimum disconnect per NEC (National Elect rical Code). NO TE: Units use 2 (lo w heat) or 3 (high heat ) combustion f a n motors rated at 0.3 FLA each. VO L T AGE 3 PH, 60 Hz VO L T AG E RANGE COMPRESSOR CONDENSER F AN MOT OR EV APORA TOR F AN MOT OR PO WER EXHA U[...]

47 Table 15 — Elec trical Data, 48P2,P3,P4,P5060 Uni ts LEGE ND * Used to determine minimum disconnect per NEC (National Electrical Code). NO TE: Units use 2 (lo w heat) or 3 (high heat ) combusti on fa n motors rated at 0.3 FLA each. VO L T AGE 3 PH, 60 Hz VO L T AG E RANGE COMPRESSOR CONDENSER F AN MOT OR EV APORA TOR F AN MOT OR PO WER EXHA US[...]

48 Table 16 — Elec trical Data, 48P2,P3,P4,P5070 Uni ts LEGE ND * Used to determine minimum disconnect per NEC (National Elect rical Code). NO TE: Units use 2 (lo w heat) or 3 (high heat ) combustion f a n motors rated at 0.3 FLA each. V O LTA G E 3 PH, 60 Hz VO LT AG E RANGE COMPRESSOR CONDENSER F AN MOT OR EV APOR A TOR F AN MOT OR PO WER EXHA [...]

49 Table 17 — Electric al Data — 48P2,P3,P4, P5075 Standard Units LEGE ND * Used to determine minimum disconnect per NEC (National Electrical Code). NO TE: Units use 2 (lo w heat) or 3 (high heat ) combusti on fa n motors rated at 0.3 FLA each. V O LTA G E 3 PH, 60 Hz VO L T AG E RANGE COMPRESSOR CONDENSER F AN MOT OR EV A PORA TOR F AN MOT OR [...]

50 Table 18 — Electric al Data — 48P2,P3, P4,P5075 Units wi th Optional High-Cap acity Power Ex haust LEGE ND * Used to determine minimum disconnect per NEC (National Elect rical Code). NO TE: Units use 2 (lo w heat) or 3 (high heat ) combustion f a n motors rated at 0.3 FLA each. V O LTA G E 3 PH, 60 Hz VO L T AG E RANGE COMPRESSOR CONDENSER F[...]

51 Table 19 — Electri cal Data — 48P2, P3,P4,P5075 Uni ts with Option al Return Fan LEGE ND * Used to determine minimum disconnect per NEC (National Electrical Code). NO TE: Units use 2 (lo w heat) or 3 (high heat ) combusti on fa n motors rated at 0.3 FLA each. VO L T AGE 3 PH, 60 Hz VO L T AG E RANGE COMPRESSOR CONDENSER F AN MOT OR EV A PORA[...]

52 Table 20 — Electrical Data — 48P2,P3, P4,P5090 Standa rd Units LEGE ND * Used to determine minimum disconnect per NEC (National Elect rical Code). NO TE: Units use 2 (lo w heat) or 3 (high heat ) combustion f a n motors rated at 0.3 FLA each. VO L T AGE 3 PH, 60 Hz VO L T AG E RANGE COMPRESSOR CONDENSER F AN MOT OR EV APORA TOR F AN MOT OR P[...]

53 Table 21 — Electric al Data — 48P2,P3, P4,P5090 Units wit h Optional High-Cap acity Power Ex haust LEGE ND * Used to determine minimum disconnect per NEC (National Electrical Code). NO TE: Units use 2 (lo w heat) or 3 (high heat ) combusti on fa n motors rated at 0.3 FLA each. VO L T AGE 3 PH, 60 Hz VO L T AG E RANGE COMPRESSOR CONDENSER F A[...]

54 Table 22 — Electri cal Data — 48P2 ,P3,P4,P5090 Un its with Opti onal Return Fan LEGE ND * Used to determine minimum disconnect per NEC (National Elect rical Code). NO TE: Units use 2 (lo w heat) or 3 (high heat ) combustion f a n motors rated at 0.3 FLA each. VO L T AGE 3 PH, 60 Hz VO L T AG E RANGE COMPRESSOR CONDENSER F AN MOT OR EV APORA[...]

55 Table 23 — Electric al Data — 48P2,P3,P4, P5100 Standard Units LEGE ND * Used to determine minimum disconnect per NEC (National Electrical Code). NO TE: Units use 2 (lo w heat) or 3 (high heat ) combusti on fa n motors rated at 0.3 FLA each. VO L T AGE 3 PH, 60 Hz VO L T AG E RANGE COMPRESSOR CONDENSER F AN MOT OR EV A PORA TOR F AN MOT OR P[...]

56 Table 24 — Electr ical Data — 48P2,P3,P4, P5100 Units with Opt ional High-Capaci ty Power Exhaus t LEGE ND * Used to determine minimum disconnect per NEC (National Electrical Code). NO TE: Units use 2 (lo w heat) or 3 (high heat) co mbustion f an moto rs rated at 0.3 FLA each. V O LTA G E 3 PH, 60 Hz VO L T AG E RANGE COMPRESSOR CONDENSER F [...]

57 Table 25 — Electri cal Data — 48P2, P3,P4,P5100 Uni ts with Option al Return Fan LEGE ND * Used to determine minimum disconnect per NEC (National Electrical Code). NO TE: Units use 2 (lo w heat) or 3 (high heat ) combusti on fa n motors rated at 0.3 FLA each. VO L T AGE 3 PH, 60 Hz VO L T AG E RANGE COMPRESSOR CONDENSER F AN MOT OR EV A PORA[...]

58 Step 13 — Connect Air Pressure T ubing — Be- fore options such as the variable frequency drive (VFD) and/or modulating power exhaust can ope rate properly , the pneumatic tubing for pressure sensing must be installed. Use fire-retardant plenum tubing (field-supplied) . All control devices use 1 / 4 -in. tubing. T ubing must be run from the a[...]

59 A UXILIAR Y CONTROL BO X BP DP OA CFM TRANSDUCER FS DP OA CFM TRANSDUCER BP FS Fig. 45 — Auxiliar y Control Box Lo cation (Sizes 05 5-100) LEGEND Fig. 46 — Auxiliary Control Box Details (Sizes 030- 050) BP — Building Pressure T ransducer DP — Duct Pressure T ransducer FS — Filter Switch OAC F M — Outdoor Air Cfm Sensor T ransducer LE[...]

60 Step 14 — Remo ve Suppl y-F an Shipping Brackets — Supply-fan shipping brackets (4 per unit) must be removed from each corner of the fan sled before starting unit. UNIT SIZES 030-050 1. T o remove brackets, raise fa n sled by turning adjusting bolt counterclockwise until spring is compressed slightly . 2. Remove screws holding shipping brack[...]

61 After removing all shipping brackets, level the fan using the adjustment screws. On all 4 corners the dimension from cross rail to fan sled should be as shown in Fig. 52. Step 16 — Connect Gas Piping — Unit is equipped for use with natural gas only . Installation must con- form with local building codes, or in the absence of local codes, wit[...]

62 Step 18 — Install Flue/Inlet Hoo ds and Baffles — The flue/inlet hoods and baf fles are shipped in a package taped to the basepan in the fan section. The flue (out- let) hoods are pre-assembled. Th e flue deflector , inlet hoods, and baffles require assembly . The hoods are located on the h eating section access panel as shown in Fig. 54 (si[...]

63 FLUE OUTLET HOOD FLUE HOOD AND FLUE DEFLECT OR HOOD 6-IN. INLET HOOD 3 0-IN. INLET HOOD INLET BAFFLE (14-in.) INLET BAFFLE ( 3 0-in.) FLUE OUTLET HOOD FLUE HOOD AND FLUE DEFLECT OR HOOD 6-IN. INLET HOOD 3 0-IN. INLET HOOD 3 0-IN. INLET HOOD Fig. 56 — Flue/Inlet Hood Locations, Sizes 055-100, Low Heat, Horizontal Supply Units Fig. 57 — Flue/I[...]

64 Table 26 — Flue Hood, Inlet Hood, and Baffle Usage HOOD OR BAFFLE TYPE P ART S LIST FIG. NO . QU ANTITY USED Sizes 030-05 0 (Low Heat) Sizes 030- 050 (High Heat) Sizes 055- 070 (Low Heat ) Sizes 055 -070 (High Heat) Sizes 075-10 0 (Low Heat) Sizes 075- 100 (High Heat) 6-in. Inlet Hood T op (6-in.) Side (Left) Side (Right) Screen Speed Clip s S[...]

65 OBSERVE OFFSET MOUNTING HOLE LOCA TIONS WHEN INST ALLING FLUE DEFLECTOR HOODS. FLUE DEFLECTOR BAFFLE (BOTH HOOD S ) FLUE DEFLECTOR HOOD MAKE S CREW HOLE S ALIGN ACCE SS P ANEL OPENING HOOD S IDE (TYP BOTH S IDE S ) S PEED CLIP (TYP 3 ) COVER (14-IN. HOOD ONLY) S CREEN Fig. 63 — Flue Deflector Baffle (Curv e-Type) Fig. 64 — Mounting Deflector[...]

66 Table 27 — SGC Thermistor Designations SGC — Staged Gas Controller Step 20 — Install Optional Motormaster ® V Contr ol — The Motormaster V control is a m otor speed control device which adjusts condenser fan motor speed in re- sponse to varying liquid refrigerant pressure. A properly applied Motormaster V control extends t he operating [...]

67 WIND BAFFLE Fig. 70 — Wind Baff le Details NO TE: 48/50P030, 035, and 070-100 units do not require baffles. UNIT SIZE QU ANTITY DIMENSION “A” in. mm 030,035 Not Used — — 040-060 2 78.125 ± 0.125 1984 ± 3 070-100 Not Used — — BAFFLE INSTALLATION LOCATION (SIZES 050 AND 060 SHOWN) a48-8561 a48-8560[...]

68 Step 21 — Install Unit Accessories — For appli- cations requiring accessories, the following packages are available: All units: • barometric relief • space temperature sensor •C O 2 sensor • space temperature sensor with CO 2 sensor • airflow switch • filter switch • smoke detect or All 48P2,P4 (constant volume) units: • modu[...]

69 • smoke control — purge (Fig. 83) • smoke control — evacu ation (Fig. 83) • smoke contro l — pressurizatio n (Fig. 83) • CCN connections (Fig. 8 4) R Y1 Y2 W1 W2 G R Y1 Y2 W1 W2 G FIELD SUPPLIED THERMOST A T RC TB201 X C Fig. 71 — Field Control Thermostat Wiring a48-8474 1 24 3 5 6 7 8 9 10 12 13 14 15 16 T56- SPT T55- SPT UNIT T[...]

70 FIELD IN S T ALLED (FIELD S UPPLIED) JUMPER WHEN ENTHALPY S WITCH NO T U S ED RCB J4 6 5 1 3 14 15 10 9 RCB J 8 RELA Y 5 MBB J8 7 8 TB201 FIL TER ST A TUS MBB J8 Fig. 74 — Heat Interlock Relay Wiring Fig. 75 — Outdoor Air Enthalpy Switc h Wiring Fig. 76 — CO 2 Space Sens or Wiring Fig. 77 — Filter Sta tus Wiring a48-8477 a48-8478 a48-847[...]

71 RCB J4 CEM J6 4 3 RED BRN Fig. 78 — Fan Status Switch Wiring Fig. 79 — Space and Return Air Humidity Sensor Wiring Fig. 80 — Return Air CO 2 Sensor Wirin g a48-8482 a48-8483[...]

72 MBB J6 TB201 1 2 BLU WHT FIRE SHUTDOWN RCB J4 TB 202 14 15 16 17 18 19 TB201 TB201 1 2 Fig. 81 — Return Air Smoke Detector Wiring Fig. 82 — Fire Shutdown Wiring Fig. 83 — Purg e, Evacuati on, and Pressurization Wiring a48-8483 a48-8485 a48-8486[...]

73 Carrier Comfort Network ® (CCN) Interface — T he 48P Series units can be connected to the CCN system if desired. The communication bus wiring is supplied and installed in the field. It consis ts of shielded, 3-conductor cable with shield wire. The system elements are connected to the communic ation bus in a daisy chain arrangement. The positi[...]

74 c. Secure the black (–) wire to CCN screw terminal – on the COMM board. d. Secu re shield wire to CCN screw terminal SHIELD on the COMM board. Optional UPC Open Installation WIRING THE UPC OPEN T O THE MS/T P NET - WO RK — The UPC Open controller communicates using BACnet on an MS/TP network segment communications at 9600 bps, 19.2 kbps, 3[...]

75 Table 30 — Open Syste m Wiring Sp ecif ications and Recommended Vendors LEGEND This allows the space to be ove rpressurized relative to adjacent zones and prevents or slows entry of smoke into this space from adjacent zones. See Fig. 82 for wiring. EV A C UA TI ON — Evacuation mode removes smoke or un- desirable air from interior spaces with[...]

Manufacturer reserves the right to disco ntinue, or change at any time, specificatio ns or designs without notice and without inc urring obligations. Catalog No . 04-53480079-0 1 Printed in U .S.A. F orm 48P-4SI Pg 76 11-10 Replaces: 48P-3SI Copy right 2010 Carrier Cor poration SM OK E P UR G E — Smoke Purge mode removes smoke from the interior s[...]