Page 2 - TABLE OF CONTENTS; Ultra high efficiency:
2 TABLE OF CONTENTS PAGE FEATURES AND BENEFITS 4 . . . . . . . . . . . . . . . . . . . . MODEL NUMBER NOMENCLATURE 5 . . . . . . . . . . . . FACTORY OPTIONS AND/OR ACCESSORIES 7 . . . . . AHRI COOLING RATING TABLES 9 . . . . . . . . . . . . . . . SOUND PERFORMANCE TABLE 10 . . . . . . . . . . . . . ...
Page 3 - CARRIER’S MOST EFFICIENT COMMERCIAL ROOFTOP EVER DESIGNED; Ideal for Replacement or New Construction
3 CARRIER’S MOST EFFICIENT COMMERCIAL ROOFTOP EVER DESIGNED Ideal for Replacement or New Construction 1 7 5 2 4 6 3 C12160 Fig. 1 -- 48LC Front View 8 9 10 11 12 13 14 C12161 Fig. 2 -- 48LC Rear View 1. Full perimeter base rails with built in rigging provisions. Unit has the same footprint as the cu...
Page 4 - UNIT FEATURES
4 UNIT FEATURES S Two stage cooling capacity control scroll compressors with crankcase heater S Belt drive indoor fan and pulley system with Variable Frequency Drive (VFD) motor controller and display or directdrive (multi speed/torque) ECM motor. S SEER up to 17.5 with direct drive ECM indoor fan m...
Page 5 - MODEL NUMBER NOMENCLATURE
5 MODEL NUMBER NOMENCLATURE 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 4 8 L C D 0 0 6 A 0 A 0 -- 0 A 0 A 0 ____ ____ ____ Unit Type Brand / Packaging 48 = Gas Heat Packaged 0 = Standard Rooftop 1 = LTL Electrical Options Model Series --- WeatherExpert A = None LC = Ultra High Efficiency B = HACR ...
Page 7 - FACTORY OPTIONS AND/OR ACCESSORIES
7 FACTORY OPTIONS AND/OR ACCESSORIES Economizer (dry--bulb or enthalpy) 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 CO 2 sensors, economizers can p...
Page 10 - Table 6 – SOUND PERFORMANCE TABLE
10 Table 5 – HEATING RATING TABLE -- LOW NO X 1 48LC GAS HEAT LOW NOx HEAT EXCHANGER TEMP RISE (DEG F) THERMAL EFFICIENCY (%) INPUT / OUTPUT STAGE 1 (MBH) INPUT / OUTPUT STAGE 2 (MBH) 04 LOW --- 60 / 47 20 --- 50 81% MED --- 90 / 72 30 --- 60 81% HIGH --- --- --- --- 05 LOW --- 60 / 47 20 --- 50 81%...
Page 11 - Table 8 – PHYSICAL DATA
11 Table 8 – PHYSICAL DATA (COOLING) 3 -- 5 TONS 48LC*004 48LC*005 48LC*006 Refrigeration System # Stages/ # Comp. / Type 2 / 1 / Scroll 2 / 1 / Scroll 2 / 1 / Scroll R --- 410A charge A/B (lbs --- oz) 9 --- 2 9 --- 0 11 --- 0 Metering device TXV TXV TXV High --- press. Trip / Reset (psig) 630 / 505...
Page 12 - Table 9 – PHYSICAL DATA
12 Table 9 – PHYSICAL DATA (HEATING) 3 -- 5 TONS 48LC**04 48LC**05 48LC**06 Gas Connection # of Gas Valves 1 1 1 Nat. gas supply line press (in. w.g.)/(PSIG) 4 --- 13 / 0.18 --- 0.47 4 --- 13 / 0.18 --- 0.47 4 --- 13 / 0.18 --- 0.47 Propane supply line press (in. w.g.)/(PSIG) 11 --- 13 / 0.40 --- 0....
Page 13 - CURBS & WEIGHTS DIMENSIONS
13 CURBS & WEIGHTS DIMENSIONS C12128 Fig. 3 -- Dimensions 48LC 04--06 48L C
Page 17 - OPTIONS & ACCESSORY WEIGHTS
17 OPTIONS & ACCESSORY WEIGHTS OPTION / ACCESSORY OPTION / ACCESSORY WEIGHTS 04 05 06 lb kg lb kg lb kg Power Exhaust --- vertical 50 23 50 23 50 23 Power Exhaust --- horizontal 30 14 30 14 30 14 EconoMi$er (X or 2) 50 23 50 23 50 23 Medium Gas Heat 12 5 9 4 9 4 High Gas Heat --- --- 17 8 17 8 H...
Page 18 - APPLICATION DATA; Aluminized; Outdoor air application strategies:
18 APPLICATION DATA Min operating ambient temp (cooling): In mechanical cooling mode, your Carrier rooftop unit can safely operate down to an outdoor ambient temperature of 10 _ F (--12 _ C) and down to 0 _ F (--18 _ C) with ComfortLink controls. It is possible to provide cooling at lower outdoor am...
Page 22 - Table 12 – COOLING CAPACITIES -- FIRST STAGE PART LOAD
22 Table 12 – COOLING CAPACITIES -- FIRST STAGE PART LOAD 4 TONS 05 SIZE AMBIENT TEMPERATURE 85 95 105 115 125 EA (dB) EA (dB) EA (dB) EA (dB) EA (dB) 75 80 85 75 80 85 75 80 85 75 80 85 75 80 85 1000 Cfm EA (wB) 58 THC 32.0 32.0 36.3 30.5 30.5 34.6 28.8 28.8 32.7 26.9 26.9 30.6 24.8 24.8 28.3 SHC 2...
Page 23 - Table 13 – COOLING CAPACITIES -- SECOND STAGE FULL LOAD
23 Table 13 – COOLING CAPACITIES -- SECOND STAGE FULL LOAD 4 TONS 05 SIZE AMBIENT TEMPERATURE 85 95 105 115 125 EA (dB) EA (dB) EA (dB) EA (dB) EA (dB) 75 80 85 75 80 85 75 80 85 75 80 85 75 80 85 1200 Cfm EA (wB) 58 THC 42.0 42.0 47.6 39.8 39.8 45.2 37.5 37.5 42.6 35.0 35.0 39.9 32.5 32.5 37.1 SHC ...
Page 24 - Table 14 – COOLING CAPACITIES -- FIRST STAGE PART LOAD
24 Table 14 – COOLING CAPACITIES -- FIRST STAGE PART LOAD 5 TONS 06 SIZE AMBIENT TEMPERATURE 85 95 105 115 125 EA (dB) EA (dB) EA (dB) EA (dB) EA (dB) 75 80 85 75 80 85 75 80 85 75 80 85 75 80 85 1250 Cfm EA (wB) 58 THC 40.1 40.1 45.4 38.0 38.0 43.1 35.7 35.7 40.6 33.1 33.1 37.8 30.3 30.3 34.7 SHC 3...
Page 25 - Table 15 – COOLING CAPACITIES -- SECOND STAGE FULL LOAD
25 Table 15 – COOLING CAPACITIES -- SECOND STAGE FULL LOAD 5 TONS 06 SIZE AMBIENT TEMPERATURE 85 95 105 115 125 EA (dB) EA (dB) EA (dB) EA (dB) EA (dB) 75 80 85 75 80 85 75 80 85 75 80 85 75 80 85 1500 Cfm EA (wB) 58 THC 54.0 54.0 61.2 51.3 51.3 58.3 48.6 48.6 55.2 47.0 47.0 53.4 44.5 44.5 50.6 SHC ...
Page 26 - ECONOMIZER, BAROMETRIC RELIEF AND PE PERFORMANCE; Vertical Application; Horizontal Application
26 ECONOMIZER, BAROMETRIC RELIEF AND PE PERFORMANCE Vertical Application 0 500 1000 1500 2000 2500 0 0.05 0.1 0.15 0.2 0.25 0.3 RETURN DUCT STATIC PRESSURE (in.wg) 3 - 5 Ton RELIEF FLOW (CFM) Vertical Economizers C11539 Fig. 7 -- Barometric Relief Flow--Vertical 3 -- 5 Ton 0 1000 2000 3000 4000 5000...
Page 27 - GENERAL FAN PERFORMANCE NOTES:; pressure caused by any FIOPs or accessories.
27 GENERAL FAN PERFORMANCE NOTES: 1. Interpolation is permissible. Do not extrapolate.2. External static pressure is the static pressure difference between the return duct and the supply duct plus the static pressure caused by any FIOPs or accessories. 3. Tabular data accounts for pressure loss due ...
Page 28 - FAN PERFORMANCE
28 FAN PERFORMANCE DIRECT DRIVE -- ECM (Multi--Speed) INDOOR FAN MOTOR Table 16 – 48LC*004 Vertical Unit--Direct Drive Speed (Torque) Tap CFM ESP BHP 1 750 0.27 0.15 900 0.07 0.11 1050 --- --- 1125 --- --- 1200 --- --- 1275 --- --- 1350 --- --- 1425 --- --- 1500 --- --- 2 750 0.54 0.21 900 0.29 0.18...
Page 34 - Table 28 – PULLEY ADJUSTMENT
34 FAN PERFORMANCE (cont.) Table 28 – PULLEY ADJUSTMENT UNIT MOTOR/ DRIVE COMBO MOTOR PULLEY TURNS OPEN (RPM) 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 04 Standard Static --- --- --- --- --- --- --- --- --- --- --- Medium Static 1175 1135 1094 1054 1013 973 932 892 851 811 770 High Static 1466 142...
Page 35 - ELECTRICAL INFORMATION
35 ELECTRICAL INFORMATION Table 29 – 48LC*004 3 TONS UNIT V --- Ph --- Hz VOLTAGE RANGE COMP 1 OFM (ea) IFM MIN MAX RLA LRA WATTS FLA TYPE EFF at Full Load FLA 04 208 --- 3 --- 60 187 253 11.6 73 190 3.5 DD --- STD 84.0% 5.8 190 3.5 MED 81.5% 5.8 190 3.5 HIGH 80.0% 7.1 230 --- 3 --- 60 187 253 11.6 ...
Page 37 - Table 33 – MCA/MOCP DETERMINATION WITH POWERED CONVENIENCE OUTLET
37 MCA/MOCP (cont.) Table 33 – MCA/MOCP DETERMINATION WITH POWERED CONVENIENCE OUTLET 3 -- 5 TONS UNIT NOM. V --- Ph --- Hz IFM TYPE w/ PWRD C.O. NO P.E. w/ P.E. (pwrd fr/ unit) MCA MOCP DISC. SIZE MCA MOCP DISC. SIZE FLA LRA FLA LRA 04 208/ 230 --- 3 --- 60 DD --- STD 29.0 40 30 88 31.0 40 32 90 ME...
Page 39 - Table 35 – MCA/MOCP DETERMINATION WITH POWERED CONVENIENCE OUTLET
39 MCA/MOCP (cont.) Table 35 – MCA/MOCP DETERMINATION WITH POWERED CONVENIENCE OUTLET 3 -- 5 TONS UNIT NOM. V --- Ph --- Hz IFM TYPE w/ PWRD C.O. NO P.E. w/ P.E. (pwrd fr/ unit) MCA HACR BRKR DISC. SIZE MCA HACR BRKR DISC. SIZE FLA LRA FLA LRA 04 208/ 230 --- 3 --- 60 DD --- STD 29.0 40 30 88 31.0 4...
Page 40 - SEQUENCE OF OPERATION; General; Electromechanical units with no economizer; Electromechanical units with an economizer; Cooling
40 SEQUENCE OF OPERATION General The sequence below describes the sequence of operation for an electromechanical unit with and without a factory installed EconoMi$er X (called “economizer” in this sequence). Electromechanical units with no economizer Cooling When the thermostat calls for cooling, te...
Page 41 - Advanced Operation with ComfortLink Controls
41 SEQUENCE OF OPERATION (cont.) When the EconoMi$er X control is in the occupied mode and a call for cooling exists (Y1 on the thermostat), the control will first check for indoor fan operation. If the fan is not on, then cooling will not be activated. If the fan is on, then the control will open t...
Page 42 - Max Comfort Dehumidification; Free Cooling Operation with an Economizer; Direct Drive Units
42 SEQUENCE OF OPERATION (cont.) Max Comfort Dehumidification When the Dehumidification Control Type set to Maximum Comfort, the control will try to satisfy the demand while minimizing the cold air dump. The fan staging and compressor staging will operate similar to Maximum Dehumidification but the ...
Page 43 - Gas Heat/Electric Cooling Packaged Rooftop; HVAC Guide Specifications
43 GUIDE SPECIFICATIONS -- 48LC*004--06 Note about this specification: This specification is in 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 G...
Page 44 - Electric and Electronic Control System for HVAC
44 11. Economizer control (optional). 12. Control multi capacity stages13. Unit shall be complete with self--contained low voltage control circuit.14. Unit shall have 0 _ F low ambient cooling operation. 23 09 23.13.B. Safeties: 1. Unit shall incorporate a solid state compressor lockout that provide...
Page 45 - Sequence of Operations for HVAC Controls; INSERT SEQUENCE OF OPERATION; Panel Air Filters; Unit shall use environmentally sound, Puron
45 2. Low--pressure switch. a. Units with 2 compressors shall have different sized connectors for the circuit 1 and circuit 2 low and high pressure switches. They shall physically prevent the cross--wiring of the safety switches between circuits 1 and 2. b. Low pressure switch shall use different co...
