Carrier 48ES---A User Manual

148ES---AComfort t 13 SEER Single ---Packaged Air Conditionerand Gas Furnace System with Puron® (R---410A) RefrigerantSingle and Three Phase2 --- 5 N

10Table 2 – Maximum Gas Flow Capacity*NOMINALIRON PIPESIZE (IN.)INTERNALDIAMETER(IN.)LENGTH OF PIPE FT (m)†10(3)20(6)30(9)40(12)50(15)60(18)70(21)80(2

11NOTE: On large chassis units remove sheet metal shields onpanels by using a screw driver to shear off retainers and discard.UNIT COMPONENT DAMAGE HA

12heating and air conditioning systems. Secure all ducts tobuilding structure.7. Flash, weatherproof, and vibration isolate all openings inbuilding st

13connections (See Fig. 11). Secure all cut wires, so that they do notinterfere with operation of unit.POWERSUPPLYFIELD-SUPPLIEDFUSED DISCONNECTHIGH V

14FIRE, EXPLOSION HAZARDFailure to follow this warning could result in personalinjury, death or property damage.Do not purge gas supply into the combu

15IN THE U.S.A.:The input rating for altitudes above 2,000 ft (610 m) must bereduced by 4% for each 1,000 ft (305 m) above sea level.For installations

164. Turn off gas supply to unit. Remove manometer frompressure tap and replace pipe plug on gas valve. (See Fig.12.) Turn on gas to unit and check fo

17A09282Fig. 15 -- 208/230--1--60 Wiring Diagram48ES--A

18A09264Fig. 16 -- 208/230--3--60 Wiring Diagram48ES--A

19A09265Fig. 17 -- 460--3--60 Wiring Diagram48ES--A

2Recognize safety information. This is the safety--alert symbol.When you see this symbol on the unit and in instructions or manu-als, be alert to the

20Normal OperationAn LED (light--emitting diode) indicator is provided on theintegrated gas unit controller (IGC) to monitor operation. The IGCis loca

21Proceed as follows:1. Remove caps from low-- and high--pressure service fittings.2. Using hoses with valve core depressors, attach low-- andhigh--pr

22speed when the DH control lead is not energized, or IFB “HIGH”speed when the DH lead is energized (see Fig. 18).COMLOWHIGHGASHEATQ1R1LC8RL3Q3DCR QCR

23Table7–CoolingChargingChartA0849048ES--A

24Table 8 – Filter Pressure Drop Table (IN. W.C.)FILTER SIZEin. (mm)CFM500 600 700 800 900 1000 1100 1200 1300 1400 1500 1600 1700 1800 1900 2000 2100

25Table 9 -- Dry Coil Air Delivery* -- Horizontal and Downflow Discharge --Unit 48ES--A24--60UNITHEATINGRISERANGEoF(oC)MOTORSPEEDWIRECOLOREXTERNAL STA

26Table 9 -- Dry Coil Air Delivery* -- Horizontal and Downflow Discharge --Unit 48ES--A24--60UNITHEATINGRISERANGEoF(oC)MOTORSPEEDWIRECOLOREXTERNAL STA

27Table 9 -- Dry Coil Air Delivery* -- Horizontal and Downflow Discharge --Unit 48ES--A24--60UNITHEATINGRISERANGEoF(oC)MOTORSPEEDWIRECOLOREXTERNAL STA

28Table 9 -- Dry Coil Air Delivery* -- Horizontal and Downflow Discharge --Unit 48ES--A24--60UNITHEATINGRISERANGEoF(oC)MOTORSPEEDWIRECOLOREXTERNAL STA

29Table 10 – 48ES--A Wet Coil Pressure Drop (IN. W.C.)UNITSIZESTANDARD CFM (S.C.F.M)600 700 800 900 1000 1100 1200 1300 1400 1500 1600 1700 1800 1900

3A09448Fig. 2 -- 48ES--A24--36 Unit Dimensions48ES--A

30ELECTRICAL SHOCK HAZARDFailure to follow this warning could result in personalinjury or death.Disconnect and tag electrical power to the unit before

31Integrated Gas UnitController(IGC)Induced DraftMotorRolloutSwitchMounting ScrewBurnerRackInducerBlowerHousingFlueCollector BoxInterface FanBoard (IF

32MOTORFAN GRILLEMOTOR SHAFTAA08505MAX DISTANCE BETWEEN TOP OF FAN GRILLE AND BOTTOM OF FAN BLADESIZE“A”IN. MM24 7.3 18530 7.3 18536 7.3 18542 7.6 193

33charge so that pressure gauges read 0 psig. Never open systemwithout breaking vacuum with dry nitrogen.High--Pressure SwitchThe high--pressure switc

34PURONR (R--410A) QUICK REFERENCE GUIDES Puron refrigerant operates at 50--70 percent higher pressures than R--22. Be sure that servicing equipment a

35Table 12 – Troubleshooting ChartSYMPTOM CAUSE REMEDYCompressor and condenser fan will not start.Power failure Call power companyFuse blown or circui

36Table 13 – Troubleshooting Guide–HeatingSYMPTOM CAUSE REMEDYBurners will not igniteWater in gas line Drain. Install drip leg.No power to furnace Che

37START--UP CHECKLIST(Remove and Store in Job Files)I. PRELIMINARY INFORMATIONMODEL NO.:SERIAL NO.:DATE:TECHNICIAN:II. PRESTART--UP (Insert check mark

38Copyright 2009 Carrier Corp. S 7310 W. Morris St. S Indianapolis, IN 46231 Edition Date: 08/09Manufacturer r eser ves the r ight to change, at any t

4A09449Fig. 3 -- 48ES--A42--60 Unit Dimensions48ES--A

5RETURN AIR SMALLBASE UNITSUPPLYAIRLARGEBASE UNITUNIT PLACEMENT ON COMMON CURBLARGE CURBSMALL OR LARGE BASE UNITSMALL/COMMON CURBROOF CURB DETAILWood

6OPTIONALRETURNAIROPENINGOPTIONALSUPPLYAIROPENINGEVAP. COIL COND. COIL2˝(50.8mm)A07926Fig. 5 -- Slab Mounting DetailsStep 3 — Field Fabricate Ductwork

7ACCESS PANELS MUST BE IN PLACE WHEN RIGGING.PANNEAUX D'ACCES DOIT ÊTRE EN PLACE POUR MANIPULATION.50CY502286 2.0CAUTION - NOTICE TO RIGGERSPRUD

8Table 1 – Physical Data -- Unit 48ES--AUNIT SIZE 24040 24060 30040 30060 36060 36090 42060 42090NOMINAL CAP ACITY (ton) 2 2 2 --- 1 / 2 2 --- 1 / 2 3

9Step 6 — Connect Condensate DrainNOTE: When installing condensate drain connection be sure tocomply with local codes and restrictions.Model 48ES--A d