Product data

ManualsBrandsCarrier ManualsRefrigerator48TCA04---A12

48TC

Gas Heat/Electric Cooling Packaged Rooftop

3to12.5NominalTons

Product Data

C08514

(Unit shown with optional economizer.)

This product has been designed and manufactured to

meet Energy Star® criteria for energy efficiency.

However, proper refrigerant charge and proper air flow

are critical to achieve rated capacity and efficiency.

Installation of this product should follow all

manufacturer’s refrigerant charging and air flow

instructions. Failure to confirm proper charge and

air flow may reduce energy efficiency and shorten

equipment life.

the environmentally sound refrigerant

Summary of content (78 pages)

PAGE 1
48TC Gas Heat/Electric Cooling Packaged Rooftop 3 to 12.5 Nominal Tons Product Data C08514 (Unit shown with optional economizer.) the environmentally sound refrigerant This product has been designed and manufactured to meet Energy Star® criteria for energy efficiency. However, proper refrigerant charge and proper air flow are critical to achieve rated capacity and efficiency. Installation of this product should follow all manufacturer’s refrigerant charging and air flow instructions.
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48TC TABLE OF CONTENTS PAGE PAGE FEATURES AND BENEFITS . . . . . . . . . . . . . . . . . . . . 3 COOLING TABLES . . . . . . . . . . . . . . . . . . . . . . . . . . . 25 MODEL NUMBER NOMENCLATURE . . . . . . . . . . . . 4 STATIC PRESSURE ADDERS . . . . . . . . . . . . . . . . . . 35 FACTORY OPTIONS AND/OR ACCESSORIES . . . . . 6 FAN PERFORMANCE . . . . . . . . . . . . . . . . . . . . . . . . . 36 ARI COOLING RATING TABLES . . . . . . . . . . . . . . . . 8 OUTDOOR AIR INTAKE & EXHAUST PERF . . . . .
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FEATURES AND BENEFITS S Single cooling stage models are available from 3 - 10 ton. S Two cooling stage models are available from 7.5 - 12.5 ton with NOVATIONt condenser coil technology. S SEER up to 13.0. S EER’s up to 11.2. S IPLV’s up to 12.2. S Up to 28% lighter than similar industry units. Lighter rooftops make easier replacement jobs. S Utility connections are the same because 3-- 12.5 ton units fit on existing Carrier rooftop curbs. This saves time and money on replacement jobs.
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MODEL NUMBER NOMENCLATURE Unit Heat Type 48 = Cooling/Gas Heat RTU 1 2 3 4 8 T C D A 0 ____ 4 5 ____ 6 7 8 9 10 11 12 13 14 15 16 17 18 4 A 1 A 5 -- 0 A 0 A 0 ____ Brand / Packaging 0 = Standard 1 = LTL 48TC Tier / Model TC = Entry tier (with Puron refrigerant) Electrical Options A = None C = Non--- fused disc D = Thru the base F = Non--- fused & thru the base Heat Size D = Low heat E = Medium heat F = High heat L = Low NOx, low heat M = Low NOx, medium heat N = Low NOx, high heat S =
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TABLE 1 – FACTORY-- INSTALLED OPTIONS AND FIELD-- INSTALLED ACCESSORIES ITEM Cabinet Thru ---the ---base electrical or gas---line connections Cu/Cu indoor and/or outdoor coils1 Pre ---coated outdoor coils1 Premium, E ---coated outdoor coils1 Humdi ---MiZer™ Adaptive Dehumidification System Condenser coil hail guard (louvered design) Thermostats, temperature sensors, and subbases PremierLink DDC communicating controller RTU ---MP open ---protocol controller Smoke detector (supply and/or return air) Time Gu
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FACTORY OPTIONS AND/OR ACCESSORIES Economizer (dry--bulb or enthalpy) Power Exhaust with Barometric Relief Economizers save money. They bring in fresh, outside air for ventilation; and provide cool, outside air to cool your building. This is the preferred method of low-- ambient cooling. When coupled to CO2 sensors, economizers can provide even more savings by coupling the ventilation air to only that amount required. Superior internal building pressure control.
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The WeatherMaker 48TC-- 04-- 07 ooftop coupled with the Humidi-- MiZer system is capable of operating in normal design cooling mode, subcooling mode, and hot gas reheat mode. Normal design cooling mode is when the unit will operate under its normal sequence of operation by cycling compressors to maintain comfort conditions. Flue Discharge Deflector Subcooling mode will operate to satisfy part load type conditions when the space requires combined sensible and a higher proportion of latent load control.
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TABLE 2 – ARI COOLING RATING TABLE UNIT COOLING STAGES NOM. CAPACITY (TONS) A04 A05 A06 A07 A08 A09 A12 1 1 1 1 1 1 1 3 4 5 6 7.5 8.5 10 48TC TABLE 3 – ARI COOLING RATING TABLE UNIT COOLING STAGES NOM. CAPACITY (TONS) D08 D12 D14 2 2 2 7.5 10 12.5 1-- STAGE COOLING NET COOLING CAPACITY (MBH) 34.6 45.0 59.0 70.0 88.0 97.0 117.0 TOTAL POWER (KW) SEER EER IPLV 3.1 4.0 5.5 6.4 8.0 8.8 10.6 13.00 13.00 13.00 N/A N/A N/A N/A 11.00 11.00 10.75 11.00 11.00 11.00 11.
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AL/SS HEAT EXCHANGER Units Single Phase 04 05 06 04 05 Three Phase 06 07 08 09 12 14 Gas Heat LOW MED HIGH LOW MED HIGH LOW MED HIGH LOW MED HIGH LOW MED HIGH LOW MED HIGH LOW MED HIGH LOW MED HIGH LOW MED HIGH LOW MED HIGH LOW MED HIGH INPUT / OUTPUT STAGE 1 (MBH) --------------------82 / 66 ------120 / 96 ----120 / 96 ----120 / 96 --120 / 98 180 / 147 --120 / 98 180 / 147 120 / 98 180 / 147 200 / 160 120 / 98 180 / 147 200 / 160 INPUT / OUTPUT STAGE 2 (MBH) 72 / 59 115 / 93 --72 / 59 115 /
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TABLE 5 – HEATING RATING TABLE - LOW NOX1 LOW NOx HEAT EXCHANGER UNIT GAS HEAT LOW MED HIGH LOW MED HIGH LOW MED HIGH LOW MED HIGH LOW MED HIGH LOW MED HIGH Single Phase 04 05 06 Three Phase 48TC 04 05 06 INPUT / OUTPUT STAGE 1 (MBH) ------------------------------------- INPUT / OUTPUT STAGE 2 (MBH) 60 / 50 90 / 74 --60 / 50 90 / 74 120 / 101 60 / 50 90 / 74 120 / 101 60 / 50 90 / 74 --60 / 50 90 / 74 120 / 101 60 / 50 90 / 74 120 / 101 TEMP RISE (DEG F) THERMAL EFFICIENCY (%) AFUE (%) 20 --
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TABLE 7 – MINIMUM - MAXIMUM AIRFLOW RATINGS - NATURAL GAS & PROPANE 48TC**04 48TC**05 48TC**06 48TC**07 48TC**08 48TC**09 48TC**12 48TC**14 HEAT LEVEL LOW MED HIGH LOW MED HIGH LOW MED HIGH LOW MED HIGH LOW MED HIGH LOW MED HIGH LOW MED HIGH LOW MED HIGH COOLING HEATING MINIMUM MAXIMUM 900 1500 1200 2000 1500 2500 1800 3000 2250 3750 2550 4250 3000 5000 3600 6000 11 MINIMUM 990 1000 --990 1330 1390 990 1330 1390 990 1330 1390 1900 2100 2270 1900 2100 2270 2100 2620 2650 2100 2
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48TC*A05 48TC*A06 48TC*A07 1 / 1 / Scroll 5--- 10 / --8--- 12 Acutrol 630 / 505 54 / 117 1 / 1 / Scroll 8--- 8 / --14--- 13 Acutrol 630 / 505 54 / 117 1 / 1 / Scroll 10--- 11 / --16--- 0 Acutrol 630 / 505 54 / 117 1 / 1 / Scroll 14--- 2 / --22--- 4 Acutrol 630 / 505 54 / 117 Cu / Al 3/8” RTPF 2 / 15 5.5 3/4” Cu / Al 3/8” RTPF 2 / 15 5.5 3/4” Cu / Al 3/8” RTPF 4 / 15 5.5 3/4” Cu / Al 3/8” RTPF 4 / 15 7.
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TABLE 9 – PHYSICAL DATA (HEATING) 3 - 6 TONS 48TC**04 48TC**05 48TC**06 48TC**07 1 4 --- 13 / 0.18 --- 0.47 11 --- 13 / 0.40 --- 0.47 1 4 --- 13 / 0.18 --- 0.47 11 --- 13 / 0.40 --- 0.47 1 4 --- 13 / 0.18 --- 0.47 11 --- 13 / 0.40 --- 0.47 1 4 --- 13 / 0.18 --- 0.47 11 --- 13 / 0.40 --- 0.47 0.14 0.14 0.14 0.14 0.14 0.14 0.14 0.
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48TC*A09 48TC*A12 48TC*D12 48TC*D14 1 / 1 / Scroll 2 / 2 / Scroll 1 / 1 / Scroll 1 / 1 / Scroll 2 / 2 / Scroll 2 / 2 / Scroll 13--- 12 / --- 4--- 6 / 4--- 6 15--- 4 / --- 20--- 0 / --- 6--- 0 / 6--- 0 7--- 6 / 8--- 0 60 Acutrol 630 / 505 54 / 117 42 / 42 Acutrol 630 / 505 54 / 117 85 Acutrol 630 / 505 54 / 117 110 Acutrol 630 / 505 54 / 117 42 / 42 Acutrol 630 / 505 54 / 117 56 / 56 Acutrol 630 / 505 54 / 117 Cu / Al 3/8” RTPF 3 / 15 8.9 3/4” Cu / Al 3/8” RTPF 3 / 15 8.
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TABLE 11 – PHYSICAL DATA (HEATING) 7.5 - 12.5 TONS 48TC**08 48TC**09 48TC**12 48TC**14 1 4 --- 13 / 0.18 --- 0.47 11 --- 13 / 0.40 --- 0.47 1 4 --- 13 / 0.18 --- 0.47 11 --- 13 / 0.40 --- 0.47 1 4 --- 13 / 0.18 --- 0.47 11 --- 13 / 0.40 --- 0.47 1 4 --- 13 / 0.18 --- 0.47 11 --- 13 / 0.40 --- 0.47 0.14 0.14 0.14 0.14 0.14 0.14 0.14 0.
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48TC CURBS & WEIGHTS DIMENSIONS -- CHASSIS 1 C08517 Fig.
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48TC CURBS & WEIGHTS DIMENSIONS -- CHASSIS 1 (cont.) C08593 Fig. 2 -- Dimensions 48TC 04--07 GASKET (SUPPLIED WITH CURB) NAIL COUNTER FLASHING (FIELD SUPPLIED) ROOFING FELT (FIELD SUPPLIED) CANT STRIP (FIELD SUPPLIED) ROOFING FELT (FIELD SUPPLIED) C07457 Fig. 4 -- Curb Installation Detail (Typical) C D B A C08337 C07458 Fig. 5 -- Service Clearance Fig.
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48TC CURBS & WEIGHTS DIMENSIONS -- CHASSIS 2 C08519 Fig.
PAGE 19
48TC CURBS & WEIGHTS DIMENSIONS -- CHASSIS 2 (cont.) C08520 Fig. 7 -- 48TC 08--12 GASKET (SUPPLIED WITH CURB) NAIL COUNTER FLASHING (FIELD SUPPLIED) ROOFING FELT (FIELD SUPPLIED) CANT STRIP (FIELD SUPPLIED) ROOFING FELT (FIELD SUPPLIED) C07457 Fig. 9 -- Curb Installation Detail (Typical) C D B A C08337 C08309 Fig. 10 -- Service Clearance Fig.
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48TC CURBS & WEIGHTS DIMENSIONS -- CHASSIS 3 C08521 Fig.
PAGE 21
48TC CURBS & WEIGHTS DIMENSIONS -- CHASSIS 3 (cont.) C08522 GASKET (SUPPLIED WITH CURB) NAIL COUNTER FLASHING (FIELD SUPPLIED) ROOFING FELT (FIELD SUPPLIED) CANT STRIP (FIELD SUPPLIED) ROOFING FELT (FIELD SUPPLIED) C07457 Fig. 13 -- Curb Installation Detail (Typical) C D B A C08337 C08309 Fig. 14 -- Service Clearance Fig.
PAGE 22
APPLICATION DATA Min operating ambient temp (cooling): Outdoor air application strategies: In mechanical cooling mode, your Carrier rooftop unit can safely operate down to an outdoor ambient temperature of 40_F (4_C) and 25_F (-- 4_C), with an accessory winter start kit. It is possible to provide cooling at lower outdoor ambient temperatures by using less outside air, economizers, and/or accessory low ambient kits.
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Sizing a rooftop Low ambient applications Bigger isn’t necessarily better. While an air conditioner needs to have enough capacity to meet the design loads, it doesn’t need excess capacity. In fact, excess capacity typically results in very poor part load performance and humidity control. The optional Carrier economizer can adequately cool your space by bringing in fresh, cool outside air. In fact, when so equipped, accessory low-- ambient kit may not be necessary.
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SELECTION PROCEDURE (WITH 48TC*A07 EXAMPLE)1 I. 48TC II. Determine cooling and heating loads. Given: Mixed air dry bulb 80_F (27_C) Mixed air wet bulb 67_F (19_C) Ambient dry bulb 95_F (35_C) 72.0 MBH TCLoad SHCLoad 54.0 MBH Vertical supply air 2100 CFM Heating load 85.0 MBH External static pressure 0.67 in. wg Electrical characteristics 230-- 3-- 60 Make an initial guess at cooling tons. Refrig. tons = TCLoad / 12 MBH per ton Refrig. tons = 72.0 / 12 = 6.
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48TC*A04 58 EAT (wb) 900 Cfm 62 67 72 76 58 EAT (wb) 1050 Cfm 62 67 72 76 58 EAT (wb) 1200 Cfm 62 67 72 76 58 EAT (wb) 1350 Cfm 62 67 72 76 58 EAT (wb) 1500 Cfm 62 67 72 76 LEGEND: --Cfm EAT(db) EAT(wb) SHC TC ------------- TC SHC TC SHC TC SHC TC SHC TC SHC TC SHC TC SHC TC SHC TC SHC TC SHC TC SHC TC SHC TC SHC TC SHC TC SHC TC SHC TC SHC TC SHC TC SHC TC SHC TC SHC TC SHC TC SHC TC SHC TC SHC 75 28.1 24.4 30.3 22.6 35.5 19.5 39.0 15.3 ----30.2 26.3 31.9 24.6 36.7 20.6 40.1 15.
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Table 12 (cont.) COOLING CAPACITIES Temp (F) Air Ent Condenser (Edb) 80 75 70 48TC 60 50 40 TC SHC kW TC SHC kW TC SHC kW TC SHC kW TC SHC kW TC SHC kW Temp (F) Air Ent Condenser (Edb) 75 85 95 105 115 125 TC SHC kW TC SHC kW TC SHC kW TC SHC kW TC SHC kW TC SHC kW 1-- STAGE COOLING 3 TONS 48TC04 (3 TONS) --- UNIT WITH HUMIDI---MIZER SYSTEM IN HOT GAS REHEAT MODE Air Entering Evaporator --- CFM 75 dry bulb 75 dry bulb 75 dry bulb 62.5 wet bulb (50% relative) 64 wet bulb (55% relative) 65.
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48TC*A05 58 EAT (wb) 1200 Cfm 62 67 72 76 58 EAT (wb) 1400 cfm 62 67 72 76 58 EAT (wb) 1600 Cfm 62 67 72 76 58 EAT (wb) 1800 Cfm 62 67 72 76 58 EAT (wb) 2000 Cfm 62 67 72 76 LEGEND: --Cfm EAT(db) EAT(wb) SHC TC ------------- TC SHC TC SHC TC SHC TC SHC TC SHC TC SHC TC SHC TC SHC TC SHC TC SHC TC SHC TC SHC TC SHC TC SHC TC SHC TC SHC TC SHC TC SHC TC SHC TC SHC TC SHC TC SHC TC SHC TC SHC TC SHC 75 ----43.1 31.2 47.4 25.9 51.1 20.1 ----41.9 36.6 44.6 33.4 48.7 27.3 52.2 20.6 ----44.
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Table 13 (cont.) COOLING CAPACITIES Temp (F) Air Ent Condenser (Edb) 80 75 70 48TC 60 50 40 TC SHC kW TC SHC kW TC SHC kW TC SHC kW TC SHC kW TC SHC kW Temp (F) Air Ent Condenser (Edb) 75 85 95 105 115 125 TC SHC kW TC SHC kW TC SHC kW TC SHC kW TC SHC kW TC SHC kW 1-- STAGE COOLING 4 TONS 48TC05 (4 TONS) --- UNIT WITH HUMIDI---MIZER SYSTEM IN HOT GAS REHEAT MODE Air Entering Evaporator --- CFM 75 dry bulb 75 dry bulb 75 dry bulb 62.5 wet bulb (50% relative) 64 wet bulb (55% relative) 65.
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48TC*A06 58 EAT (wb) 1500 Cfm 62 67 72 76 58 EAT (wb) 1750 Cfm 62 67 72 76 58 EAT (wb) 2000 Cfm 62 67 72 76 58 EAT (wb) 2250 Cfm 62 67 72 76 58 EAT (wb) 2500 Cfm 62 67 72 76 LEGEND: --Cfm EAT(db) EAT(wb) SHC TC ------------- TC SHC TC SHC TC SHC TC SHC TC SHC TC SHC TC SHC TC SHC TC SHC TC SHC TC SHC TC SHC TC SHC TC SHC TC SHC TC SHC TC SHC TC SHC TC SHC TC SHC TC SHC TC SHC TC SHC TC SHC TC SHC 75 52.9 45.8 56.2 41.8 62.4 34.8 68.2 27.2 ----56.5 48.9 58.5 45.2 64.3 36.9 69.5 27.
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Table 14 (cont.) COOLING CAPACITIES Temp (F) Air Ent Condenser (Edb) 80 75 70 48TC 60 50 40 TC SHC kW TC SHC kW TC SHC kW TC SHC kW TC SHC kW TC SHC kW Temp (F) Air Ent Condenser (Edb) 75 85 95 105 115 125 TC SHC kW TC SHC kW TC SHC kW TC SHC kW TC SHC kW TC SHC kW 1-- STAGE COOLING 5 TONS 58TC06 (5 TONS) --- UNIT WITH HUMIDI---MIZER SYSTEM IN HOT GAS REHEAT MODE Air Entering Evaporator --- CFM 75 dry bulb 75 dry bulb 75 dry bulb 62.5 wet bulb (50% relative) 64 wet bulb (55% relative) 65.
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48TC*A07 58 EAT (wb) 1800 Cfm 62 67 72 76 58 EAT (wb) 2100 Cfm 62 67 72 76 58 EAT (wb) 2400 Cfm 62 67 72 76 58 EAT (wb) 2700 Cfm 62 67 72 76 58 EAT (wb) 3000 Cfm 62 67 72 76 LEGEND: --Cfm EAT(db) EAT(wb) SHC TC ------------- TC SHC TC SHC TC SHC TC SHC TC SHC TC SHC TC SHC TC SHC TC SHC TC SHC TC SHC TC SHC TC SHC TC SHC TC SHC TC SHC TC SHC TC SHC TC SHC TC SHC TC SHC TC SHC TC SHC TC SHC TC SHC 75 64.9 56.6 68.7 51.7 75.6 42.8 82.6 33.5 ----68.9 60.1 70.9 55.6 77.8 45.4 84.5 34.
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Table 15 (cont.) COOLING CAPACITIES Temp (F) Air Ent Condenser (Edb) 80 75 70 48TC 60 50 40 TC SHC kW TC SHC kW TC SHC kW TC SHC kW TC SHC kW TC SHC kW Temp (F) Air Ent Condenser (Edb) 75 85 95 105 115 125 TC SHC kW TC SHC kW TC SHC kW TC SHC kW TC SHC kW TC SHC kW 1-- STAGE COOLING 6 TONS 48TC07 (6 TONS) --- UNIT WITH HUMIDI---MIZER SYSTEM IN HOT GAS REHEAT MODE Air Entering Evaporator --- CFM 75 dry bulb 75 dry bulb 75 dry bulb 62.5 wet bulb (50% relative) 64 wet bulb (55% relative) 65.
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48TC*A08 58 EAT (wb) 2250 Cfm 62 67 72 76 58 EAT (wb) 2625 Cfm 62 67 72 76 58 EAT (wb) 3000 Cfm 62 67 72 76 58 EAT (wb) 3375 Cfm 62 67 72 76 62 EAT (wb) 3750 Cfm 58 67 72 76 LEGEND: --Cfm EAT(db) EAT(wb) SHC TC ------------- TC SHC TC SHC TC SHC TC SHC TC SHC TC SHC TC SHC TC SHC TC SHC TC SHC TC SHC TC SHC TC SHC TC SHC TC SHC TC SHC TC SHC TC SHC TC SHC TC SHC TC SHC TC SHC TC SHC TC SHC TC SHC 75 81.2 70.5 86.9 63.6 95.2 52.8 103.5 41.5 ----85.9 74.6 89.6 68.1 97.9 55.7 106.0 42.
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TABLE 17 – COOLING CAPACITIES 48TC*D08 58 EAT (wb) 2250 Cfm 62 67 72 58 EAT (wb) 2625 Cfm 62 67 72 76 58 EAT (wb) 3000 Cfm 62 67 72 76 58 EAT (wb) 3375 Cfm 62 67 72 76 58 62 EAT (wb) 3750 Cfm 48TC 76 67 72 76 LEGEND: --Cfm EAT(db) EAT(wb) SHC TC ------------- TC SHC TC SHC TC SHC TC SHC TC SHC TC SHC TC SHC TC SHC TC SHC TC SHC TC SHC TC SHC TC SHC TC SHC TC SHC TC SHC TC SHC TC SHC TC SHC TC SHC TC SHC TC SHC TC SHC TC SHC TC SHC 75 77.4 66.9 82.2 60.8 90.1 50.2 98.0 39.1 ----82.1 71.
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48TC*A09 58 EAT (wb) 2550 Cfm 62 67 72 76 58 EAT (wb) 2975 Cfm 62 67 72 76 58 EAT (wb) 3400 Cfm 62 67 72 76 58 EAT (wb) 3825 Cfm 62 67 72 76 58 EAT (wb) 4250 Cfm 62 67 72 76 LEGEND: --Cfm EAT(db) EAT(wb) SHC TC ------------- TC SHC TC SHC TC SHC TC SHC TC SHC TC SHC TC SHC TC SHC TC SHC TC SHC TC SHC TC SHC TC SHC TC SHC TC SHC TC SHC TC SHC TC SHC TC SHC TC SHC TC SHC TC SHC TC SHC TC SHC TC SHC 75 88.1 76.4 93.9 69.4 103.8 57.8 113.1 45.2 ----93.6 81.1 97.5 74.7 106.7 61.0 115.8 46.
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TABLE 19 – COOLING CAPACITIES 48TC*A12 58 EAT (wb) 3000 Cfm 62 67 72 58 EAT (wb) 3500 Cfm 62 67 72 76 58 EAT (wb) 4000 Cfm 62 67 72 76 58 EAT (wb) 4500 Cfm 62 67 72 76 58 62 EAT (wb) 5000 Cfm 48TC 76 67 72 76 LEGEND: --Cfm EAT(db) EAT(wb) SHC TC ------------- TC SHC TC SHC TC SHC TC SHC TC SHC TC SHC TC SHC TC SHC TC SHC TC SHC TC SHC TC SHC TC SHC TC SHC TC SHC TC SHC TC SHC TC SHC TC SHC TC SHC TC SHC TC SHC TC SHC TC SHC TC SHC 75 106.3 92.2 112.5 83.8 123.5 69.2 134.3 53.8 ----112.
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48TC*D12 58 EAT (wb) 3000 Cfm 62 67 72 76 58 EAT (wb) 3500 Cfm 62 67 72 76 58 EAT (wb) 4000 Cfm 62 67 72 76 58 EAT (wb) 4500 Cfm 62 67 72 76 62 EAT (wb) 5000 Cfm 58 67 72 76 LEGEND: --Cfm EAT(db) EAT(wb) SHC TC ------------- TC SHC TC SHC TC SHC TC SHC TC SHC TC SHC TC SHC TC SHC TC SHC TC SHC TC SHC TC SHC TC SHC TC SHC TC SHC TC SHC TC SHC TC SHC TC SHC TC SHC TC SHC TC SHC TC SHC TC SHC TC SHC 75 107.6 93.2 113.6 84.6 124.4 69.7 135.8 54.3 ----114.2 98.9 117.2 91.1 127.8 73.8 139.
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TABLE 21 – COOLING CAPACITIES 48TC*D14 58 EAT (wb) 3600 Cfm 62 67 72 58 EAT (wb) 4200 Cfm 62 67 72 76 58 EAT (wb) 4800 Cfm 62 67 72 76 58 EAT (wb) 5400 Cfm 62 67 72 76 58 62 EAT (wb) 6000 Cfm 48TC 76 67 72 76 LEGEND: --Cfm EAT(db) EAT(wb) SHC TC ------------- TC SHC TC SHC TC SHC TC SHC TC SHC TC SHC TC SHC TC SHC TC SHC TC SHC TC SHC TC SHC TC SHC TC SHC TC SHC TC SHC TC SHC TC SHC TC SHC TC SHC TC SHC TC SHC TC SHC TC SHC TC SHC 75 127.6 110.3 136.1 96.6 146.2 78.5 155.9 60.
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TABLE 22 – STATIC PRESSURE ADDERS (FACTORY OPTIONS AND/OR ACCESSORIES) Economizer 3 --- 6 TONS CFM (in. wg) Vertical Economizer Horizontal Economizer 600 800 1000 1250 1500 1750 2000 2250 2500 2750 3000 0.01 0.02 0.04 0.05 0.07 0.09 0.12 0.15 0.18 0.22 0.26 0.02 0.03 0.04 0.06 0.08 0.10 0.13 0.15 0.18 0.23 0.28 7.5 --- 12.5 TONS Vertical Economizer Horizontal Economizer 2250 2500 2750 3000 3250 3500 3750 4000 4250 4500 4750 5000 5250 5500 5750 6000 0.06 0.08 0.09 0.12 0.13 0.
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FAN PERFORMANCE TABLE 23 – 48TC**04 CFM 48TC 900 975 1050 1125 1200 1275 1350 1425 1500 CFM 900 975 1050 1125 1200 1275 1350 1425 1500 1 PHASE 0.2 RPM BHP Field---Supplied Drive1 553 0.14 575 0.16 597 0.18 620 0.21 643 0.23 667 0.27 691 0.30 715 0.34 740 0.38 1.2 RPM BHP 1019 1036 1053 1071 1089 1107 1126 1144 1163 0.64 0.69 0.74 0.79 0.84 0.90 0.96 1.03 1.10 RPM 681 700 720 741 762 783 805 827 849 3 TON HORIZONTAL SUPPLY AVAILABLE EXTERNAL STATIC PRESSURE (in. wg) 0.4 0.6 0.8 1.
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FAN PERFORMANCE (cont.) CFM 900 975 1050 1125 1200 1275 1350 1425 1500 CFM 900 975 1050 1125 1200 1275 1350 1425 1500 3 PHASE 0.2 RPM BHP Field---Supplied Drive1 553 0.14 575 0.16 597 0.18 620 0.21 643 0.23 667 0.27 691 0.30 715 0.34 740 0.38 1.2 RPM BHP 1019 1036 1053 1071 1089 1107 1126 1144 1163 0.64 0.69 0.74 0.79 0.84 0.90 0.96 1.03 1.10 3 TON HORIZONTAL SUPPLY AVAILABLE EXTERNAL STATIC PRESSURE (in. wg) 0.4 0.6 0.8 1.
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FAN PERFORMANCE (cont.) TABLE 27 – 48TC**05 CFM 48TC 1200 1300 1400 1500 1600 1700 1800 1900 2000 CFM 1200 1300 1400 1500 1600 1700 1800 1900 2000 1 PHASE 4 TON HORIZONTAL SUPPLY AVAILABLE EXTERNAL STATIC PRESSURE (in. wg) 0.4 0.6 0.8 BHP RPM BHP RPM BHP RPM BHP Standard Static Option Medium Static Option 0.23 762 0.34 859 0.46 944 0.58 0.28 790 0.40 886 0.52 969 0.65 0.33 819 0.45 913 0.58 996 0.72 0.38 849 0.52 941 0.66 1023 0.80 0.45 879 0.59 970 0.73 1050 0.88 0.52 910 0.67 999 0.82 1078 0.98 0.
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FAN PERFORMANCE (cont.) CFM 1200 1300 1400 1500 1600 1700 1800 1900 2000 CFM 1200 1300 1400 1500 1600 1700 1800 1900 2000 3 PHASE 4 TON HORIZONTAL SUPPLY AVAILABLE EXTERNAL STATIC PRESSURE (in. wg) 0.4 0.6 0.8 BHP RPM BHP RPM BHP RPM BHP Standard Static Option Medium Static Option 0.23 762 0.34 859 0.46 944 0.58 0.28 790 0.40 886 0.52 969 0.65 0.33 819 0.45 913 0.58 996 0.72 0.38 849 0.52 941 0.66 1023 0.80 0.45 879 0.59 970 0.73 1050 0.88 0.52 910 0.67 999 0.82 1078 0.98 0.59 942 0.75 1029 0.91 1106 1.
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FAN PERFORMANCE (cont.) TABLE 31 – 48TC**06 CFM 48TC 1500 1625 1750 1875 2000 2125 2250 2375 2500 CFM 1500 1625 1750 1875 2000 2125 2250 2375 2500 1 PHASE 0.2 RPM BHP RPM 800 849 899 950 1001 1053 1106 1159 --- 0.39 0.48 0.59 0.70 0.84 0.99 1.16 1.34 --- 904 947 992 1038 1085 1133 1182 1231 --- 1.2 RPM BHP RPM 1247 1276 1308 1342 ----------- 0.98 1.10 1.22 1.37 ----------- 1320 1348 1377 ------------- 5 TON HORIZONTAL SUPPLY AVAILABLE EXTERNAL STATIC PRESSURE (in. wg) 0.4 0.6 0.
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FAN PERFORMANCE (cont.) CFM 1500 1625 1750 1875 2000 2125 2250 2375 2500 CFM 1500 1625 1750 1875 2000 2125 2250 2375 2500 3 PHASE 0.2 RPM BHP RPM 800 849 899 950 1001 1053 1106 1159 1212 0.39 0.48 0.59 0.70 0.84 0.99 1.16 1.34 1.55 904 947 992 1038 1085 1133 1182 1231 1281 1.2 RPM BHP RPM 1247 1276 1308 1342 1377 1414 1452 1492 1533 0.98 1.10 1.22 1.37 1.53 1.71 1.91 2.12 2.36 1320 1348 1377 1409 1442 1477 1514 1551 1591 5 TON HORIZONTAL SUPPLY AVAILABLE EXTERNAL STATIC PRESSURE (in. wg) 0.
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FAN PERFORMANCE (cont.) TABLE 35 – 48TC**07 CFM 48TC 1800 1950 2100 2250 2400 2550 2700 2850 3000 CFM 1800 1950 2100 2250 2400 2550 2700 2850 3000 3 PHASE 0.2 RPM BHP Field---Supplied Drive1 913 0.64 972 0.78 1032 0.95 1093 1.14 1155 1.36 1217 1.60 1280 1.87 1343 2.17 1406 2.50 RPM 1010 1065 1120 1177 1234 1293 1352 1412 1472 6 TON HORIZONTAL SUPPLY AVAILABLE EXTERNAL STATIC PRESSURE (in. wg) 0.4 0.6 0.8 BHP RPM BHP RPM Standard Static Option 0.80 1098 0.98 1178 0.96 1148 1.14 1226 1.14 1200 1.
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FAN PERFORMANCE (cont.) CFM 2250 2438 2625 2813 3000 3188 3375 3563 3750 CFM 2250 2438 2625 2813 3000 3188 3375 3563 3750 3 PHASE 0.2 RPM BHP RPM 505 533 562 591 621 652 682 713 745 0.52 0.62 0.74 0.88 1.03 1.21 1.40 1.61 1.85 586 610 635 661 688 715 743 772 801 1.2 RPM BHP 838 854 872 890 910 930 951 973 996 1.81 1.96 2.12 2.31 2.51 2.74 2.99 3.26 3.55 7.5 TON HORIZONTAL SUPPLY AVAILABLE EXTERNAL STATIC PRESSURE (in. wg) 0.4 0.6 0.8 BHP RPM BHP RPM Standard Static Option 0.73 657 0.97 722 0.
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FAN PERFORMANCE (cont.) TABLE 39 – 48TC**09 CFM 48TC 2550 2763 2975 3188 3400 3613 3825 4038 4250 CFM 2550 2763 2975 3188 3400 3613 3825 4038 4250 3 PHASE 0.2 RPM BHP Field---Supplied Drive1 497 0.48 524 0.58 551 0.70 580 0.84 609 1.00 638 1.17 668 1.37 698 1.59 728 1.83 1.2 RPM BHP 833 849 865 883 902 921 941 963 984 1.21 1.36 1.52 1.70 1.90 2.13 2.37 2.63 2.92 RPM 579 602 626 651 677 703 730 758 786 8.5 TON HORIZONTAL SUPPLY AVAILABLE EXTERNAL STATIC PRESSURE (in. wg) 0.4 0.6 0.
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FAN PERFORMANCE (cont.) CFM 3000 3250 3500 3750 4000 4250 4500 4750 5000 CFM 3000 3250 3500 3750 4000 4250 4500 4750 5000 3 PHASE 0.2 RPM BHP Field---Supplied Drive1 579 0.70 613 0.85 648 1.03 683 1.23 719 1.45 756 1.71 792 1.99 830 2.31 867 2.66 RPM 660 690 721 753 786 819 853 888 923 1.2 RPM BHP RPM 917 938 961 985 1011 1037 1064 1091 1120 1.70 1.93 2.18 2.46 2.76 3.09 3.46 3.85 4.28 970 991 1013 1035 1059 1084 1110 1137 1164 10 TON HORIZONTAL SUPPLY AVAILABLE EXTERNAL STATIC PRESSURE (in.
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FAN PERFORMANCE (cont.) TABLE 43 – 48TC**14 CFM 48TC 3438 3750 4063 4375 4688 5000 5313 5625 5938 6250 CFM 3438 3750 4063 4375 4688 5000 5313 5625 5938 6250 3 PHASE 0.2 RPM BHP RPM 639 683 728 774 820 867 914 962 1009 --- 0.98 1.23 1.52 1.85 2.23 2.66 3.15 3.69 4.30 --- 713 753 794 836 879 923 967 1012 1058 --- 1.2 RPM BHP 955 985 1017 1050 1084 1120 --------- 2.12 2.46 2.84 3.27 3.75 4.28 --------- 12.5 TON HORIZONTAL SUPPLY AVAILABLE EXTERNAL STATIC PRESSURE (in. wg) 0.4 0.6 0.
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FAN PERFORMANCE (cont.) 3 phase 3 phase 3 phase 3 phase 3 phase 14 12 09 08 07 3 phase 06 1 phase 3 phase 05 1 phase 3 phase 04 1 phase UNIT MOTOR/DRIVE COMBO 0.0 0.5 1.0 MOTOR PULLEY TURNS OPEN 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.
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ECONOMIZER, BAROMETRIC RELIEF AND PE PERFORMANCE 2500 Horizontal Economizers RELIEF FLOW (CFM) RELIEF FLOW (CFM) 2500 2000 1500 3 -6 Ton 7½ - 12½ Ton 1000 Vertical Economizers 2000 1500 3 -6 Ton 7½ - 12½ Ton 1000 500 500 0 0 0 0.05 0.1 0.15 0.2 0.25 0 0.3 0.05 0.1 0.15 0.2 0.25 0.3 RETURN DUCT STATIC PRESSURE (in. wg) RETURN DUCT STATIC PRESSURE (in. wg) C08070 C08073 Fig.
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ELECTRICAL INFORMATION 1-- STAGE COOLING V ---Ph---Hz VOLTAGE RANGE MIN MAX RLA LRA WATTS FLA 208--- 1--- 60 187 253 16.6 79 325 1.5 230--- 1--- 60 187 253 16.6 79 325 1.5 208--- 3--- 60 187 253 10.4 73 325 1.5 230--- 3--- 60 187 253 10.4 73 325 1.5 460--- 3--- 60 414 506 5.8 38 325 0.8 575--- 3--- 60 518 633 3.8 37 325 0.
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ELECTRICAL INFORMATION (cont.) TABLE 49 – 48TC*A07 48TC V ---Ph---Hz VOLTAGE RANGE 1-- STAGE COOLING COMP (ea) OFM (ea) IFM RLA LRA WATTS FLA 253 19.0 123 325 1.5 187 253 19.0 123 325 1.5 460--- 3--- 60 414 506 9.7 62 325 0.8 575--- 3--- 60 518 633 7.4 50 325 0.6 MIN MAX 208--- 3--- 60 187 230--- 3--- 60 TABLE 50 – 48TC*A08 V ---Ph---Hz VOLTAGE RANGE FLA 253 25.0 164 325 1.5 187 253 25.0 164 325 1.5 460--- 3--- 60 414 506 12.2 100 325 0.
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ELECTRICAL INFORMATION (cont.) V ---Ph---Hz VOLTAGE RANGE 1-- STAGE COOLING COMP (ea) OFM (ea) IFM RLA LRA WATTS FLA 253 29.5 195 325 1.5 187 253 29.5 195 325 1.5 460--- 3--- 60 414 506 14.7 95 325 0.8 575--- 3--- 60 518 633 12.2 80 325 0.6 MIN MAX 208--- 3--- 60 187 230--- 3--- 60 TABLE 53 – 48TC*A12 V ---Ph---Hz VOLTAGE RANGE FLA 253 30.1 225 325 1.5 187 253 30.1 225 325 1.5 460--- 3--- 60 414 506 16.7 114 325 0.8 575--- 3--- 60 518 633 12.
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ELECTRICAL INFORMATION (cont.) TABLE 55 – 48TC*D14 48TC V ---Ph---Hz VOLTAGE RANGE 2-- STAGE COOLING COMP (Cir 1) COMP (Cir 2) 12.5 TONS OFM (ea) RLA LRA RLA LRA WATTS FLA MIN MAX 208--- 3--- 60 187 253 19.0 123 22.4 149 1288 6.2 230--- 3--- 60 187 253 19.0 123 22.4 149 1288 6.2 460--- 3--- 60 414 506 9.7 62 10.6 75 1288 3.1 575--- 3--- 60 518 633 7.4 50 7.7 54 1288 2.
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NOM.
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UNIT TABLE 56 (cont.) MCA/MOCP DETERMINATION NO C.O. OR UNPWRD C.O. NOM.
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NOM.
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UNIT TABLE 57 (cont.) MCA/MOCP DETERMINATION W/ PWRD C.O. NOM.
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48TC TYPICAL WIRING DIAGRAMS C08518 Fig.
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48TC TYPICAL WIRING DIAGRAMS (cont.) C08577 Fig.
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Fig.
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Fig.
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SEQUENCE OF OPERATION The sequence below describes the sequence of operation for an electro-- mechanical unit with and without a factory installed EconoMi$ert IV (called “economizer” in this sequence). For information regarding a direct digital controller, see the start-- up, operations, and troubleshooting manual for the applicable controller. Electro--mechanical units with no economizer Cooling — When the thermostat calls for cooling, terminals G and Y1 are energized.
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48TC On the initial power to the EconoMi$er IV control, it will take the damper up to 2 1/2 minutes before it begins to position itself. After the initial power-- up, further changes in damper position can take up to 30 seconds to initiate. Damper movement from full closed to full open (or vice versa) will take between 1 1/2 and 2 1/2 minutes.
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RH2.x RH1.x COND COIL HUMIDI-MIZER COIL COMP CV.x OUTDOOR AIR METERING DEVICE EVAP COIL CLOSED VALVE INDOOR ENTERING AIR 48TC OPEN VALVE a48-8173 C07120 Subcooling Mode (Reheat 1) -- Humidi--MiZer System (48TC04--07) RH2.x RH1.x COND COIL HUMIDI-MIZER COIL COMP CV.
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GUIDE SPECIFICATIONS -- 48TC**04--14 Note about this specification: Carrier wrote this specification in the 2004 version of the “Masterformat” as published by the Construction Specification Institute. Please feel free to copy this specification directly into your building spec. Gas Heat/Electric Cooling Packaged Rooftop HVAC Guide Specifications 48TC Size Range: 3 to 12.5 Nominal Tons This product has been designed and manufactured to meet Energy Star® criteria for energy efficiency.
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23 09 33 Electric and Electronic Control System for HVAC 23 09 33.13 Decentralized, Rooftop Units: 23 09 33.13.A. General: 1. Shall be complete with self-- contained low-- voltage control circuit protected by a resettable circuit breaker on the 24-- v transformer side. Transformer shall have 75VA capability. 2. Shall utilize color-- coded wiring. 3.
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48TC 4. The heat exchanger shall be controlled by an integrated gas controller (IGC) microprocessor. See heat exchanger section of this specification. 5. Unit shall include a minimum of one 8-- pin screw terminal connection board for connection of control wiring. 23 09 33.23.B. Safeties: 1. Compressor over-- temperature, over-- current. High internal pressure differential. 2. Low-- pressure switch. a.
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48TC 9. Unit shall be designed in accordance with ISO 9001:2000, and shall be manufactured in a facility registered by ISO 9001:2000. 10. Roof curb shall be designed to conform to NRCA Standards. 11. Unit shall be subjected to a completely automated run test on the assembly line. The data for each unit will be stored at the factory, and must be available upon request. 12. Unit shall be designed in accordance with UL Standard 1995, including tested to withstand rain. 13.
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48TC b. Thru-- the-- base capability (1.) Standard unit shall have a thru-- the-- base gas-- line location using a raised, embossed portion of the unit basepan. (2.) Optional, factory-- approved, water-- tight connection method must be used for thru-- the-- base gas connections. (3.) No basepan penetration, other than those authorized by the manufacturer, is permitted. 9. Electrical Connections a. All unit power wiring shall enter unit cabinet at a single, factory-- prepared, knockout location. b.
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48TC 5. Optional Low NOx Heat Exchanger construction a. Low NOx reduction shall be provided to reduce nitrous oxide emissions to meet California’s Air Quality Management District (SCAQMD) low-- NOx emissions requirement of 40 nanograms per joule or less. b. Primary tubes and vestibule plates on low NOx units shall be 409 stainless steel. Other components shall be aluminized steel. 6. Induced draft combustion motor and blower a. Shall be a direct-- drive, single inlet, forward-- curved centrifugal type.
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48TC b. Coating process shall ensure complete coil encapsulation, including all exposed fin edges. c. E-- coat thickness of 0.8 to 1.2 mil with top coat having a uniform dry film thickness from 1.0 to 2.0 mil on all external coil surface areas, including fin edges, shall be provided. d. Shall have superior hardness characteristics of 2H per ASTM D3363-- 00 and cross-- hatch adhesion of 4B-- 5B per ASTM D3359-- 02. e.
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48TC c. Shall have inherent thermal overload protection with an automatic reset feature. d. Shall use a shaft-- down design on 04 to 12 models and shaft-- up on 14 size with rain shield. 2. Condenser Fans: a. Shall be a direct-- driven propeller type fan. b. Shall have aluminum blades riveted to corrosion-- resistant steel spiders and shall be dynamically balanced. 23 81 19.13.O. Special Features Options and Accessories 1. Integrated Economizers: a.
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48TC (2.) Hot gas reheat mode shall mix a portion of the hot gas from the discharge of the compressor with the hot liquid refrigerant leaving the condenser coil to create a two-- phase heat transfer in the system, resulting in a neutral leaving-- air temperature when only humidity in the space is not satisfied. 5. Head Pressure Control Package a. Controller shall control coil head pressure by condenser-- fan speed modulation or condenser-- fan cycling and wind baffles. b.
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48TC 14. Roof Curbs (Vertical): a. Full perimeter roof curb with exhaust capability providing separate air streams for energy recovery from the exhaust air without supply air contamination. b. Formed galvanized steel with wood nailer strip and shall be capable of supporting entire unit weight. c. Permits installation and securing of ductwork to curb prior to mounting unit on the curb. 15. High Altitude Gas Conversion Kit: a.
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48TC Copyright 2009 Carrier Corp. S 7310 W. Morris St. S Indianapolis, IN 46231 Printed in U.S.A. Edition Date: 04/09 Manufacturer reserves the right to change, at any time, specifications and designs without notice and without obligations.