Carrier 48TJD008-014 User Manual

Installation, Start-Up andService InstructionsCONTENTSPageSAFETY CONSIDERATIONS ...1INSTALLATION ...1-22Step

Fig. 10 — Power Wiring ConnectionsLEGENDC—ContactorCOMPS — CompressorsIFC — Indoor (Evaporator) FanContactorNEC — National Electrical CodeTB — Termina

Step 8 — Adjust Factory-Installed OptionsAPOLLO CONTROL — The optional Apollo control is usedto actively monitor all modes of operation as well as ind

9. Remove and save screws currently on sides of hood.Insert screens. Secure screens to hood using the screws.See Fig. 16.10. Replace filter access pane

Fig. 19 — Outdoor-Air Hood DetailsFig. 20 — Vertical Discharge Block-Off Plate(Sizes 120,150 only)ECONOMIZERCONTROL BOARDECONOMIZERPLUGECONOMIZERMOTOR

Example:Given —Negative Pressure ...0.1in.wgOutdoor Airflow ...1100cfmDetermine —Setting = 69Fig. 24 — Durabla

OPTIONAL PARABLADE ECONOMIZER — The op-tional PARABLADE economizer hood assembly is pack-aged and shipped in the filter section. Damper blades andcontr

Step 9 — Adjust Evaporator-Fan Speed — Ad-just evaporator-fan speed to meet jobsite conditions.Table 3 shows fan rpm at motor pulley settings, Table 4

Table 3 — Fan Rpm at Motor Pulley Settings*UNIT48TJMOTOR PULLEY TURNS OPEN01⁄2111⁄2221⁄2331⁄2441⁄2551⁄26008† 840 815 790 765 740 715 690 665 640 615 5

Table 4 — Evaporator-Fan Motor EfficiencyMOTOR EFFICIENCY (%)48TJD/TJE/TJF008,009 8048TJD/TJE/TJF012 (Std) 8048TJD/TJE/TJF012 (Alt) 8348TJD/TJE014 (St

Table 7 — Fan Performance, 48TJ008 — Vertical Discharge UnitsAIRFLOW(Cfm)EXTERNAL STATIC PRESSURE (in. wg)0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6Rpm Bhp Rpm B

SLAB MOUNT (Horizontal Units Only) — Provide a levelconcrete slab that extends a minimum of 6 in. beyond unitcabinet. Install a gravel apron in front

Table 9 — Fan Performance, 48TJ012 — Vertical Discharge UnitsAIRFLOW(Cfm)EXTERNAL STATIC PRESSURE (in. wg)0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 2.0Rpm B

Table 11 — Fan Performance, 48TJ008 — Horizontal Discharge UnitsAIRFLOW(Cfm)EXTERNAL STATIC PRESSURE (in. wg)0.2 0.4 0.6 0.8 0.9 1.0 1.2 1.4 1.6Rpm Bh

Table 13 — Fan Performance, 48TJ012 — Horizontal Discharge UnitsAIRFLOW(Cfm)EXTERNAL STATIC PRESSURE (in. wg)0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 2.0Rp

START-UPUnit Preparation —Make sure that unit has been in-stalled in accordance with these installation instructions andapplicable codes. Make sure th

Table 15 — Altitude Compensation*ELEVATION(Ft)125,000, 180,000, AND224,000 BTUHNOMINAL INPUT250,000 BTUHNOMINAL INPUTNaturalGasOrificeSize†LiquidPropan

SERVICEWhen servicing unit, shut off all electrical power to unitto avoid shock hazard or injury from rotating parts.Cleaning — Inspect unit interior

Condenser-Fan Adjustment (Fig. 40)1. Shut off unit power supply.2. Remove condenser-fan assembly (grille, motor, motor cover,and fan) and loosen fan h

Fig. 42 — Cooling Charging Chart; 48TJ009Fig. 43 — Cooling Charging Chart; 48TJ01227

Flue Gas Passageways — To inspect the flue col-lector box and upper areas of the heat exchanger:1. Remove the combustion blower wheel and motor assem-b

REMOVAL AND REPLACEMENT OF GAS TRAIN(Fig. 45 and 46)1. Shut off manual gas valve.2. Shut off power to unit.3. Slide out burner section side panel (not

UNIT SIZE‘‘A’’ROOF CURB48TJ ACCESSORY008-01418-29 [356] CRRFCURB003A0028-09 [610] CRRFCURB004A00UNIT SIZE48TJ‘‘B’’ ‘‘C’’ ‘‘D’’ ALT DRAIN HOLE‘‘E’’GASP

NOTE: Dimensions in ( ) are millimeters.Fig. 47 — Spark Gap Adjustment125,000 BTUH INPUT48TJD008,009120,000-180,000 BTUH INPUT48TJD012, 48TJE008,00948

TROUBLESHOOTINGTable 17 — LED Error Code Service AnalysisPROBLEM CAUSE REMEDYHardware failure.(LED OFF)Loss of power to control module (IGC). Check 5-

Table 18 — Durablade Economizer TroubleshootingPROBLEM CAUSE REMEDYDamper does notopen.Indoor (evaporator) fan is off. 1. Check to ensure that 24 vac

Table 19 — PARABLADE Economizer Service TroubleshootingPROBLEM CAUSE REMEDYDamper does notopen.Evaporator fan not on. Check wiring between G on connec

Table 20 — Cooling Service TroubleshootingPROBLEM CAUSE REMEDYCompressor andcondenser fanwill not start.Power failure. Call power company.Fuse blown o

Table 21 — Heating Service TroubleshootingPROBLEM CAUSE REMEDYBurners will notignite.Misaligned spark electrodes. Check flame ignition and sensor elect

Fig. 48 — Typical Wiring Schematic and Component Arrangement36

Copyright 1996 Carrier CorporationManufacturer reserves the right to discontinue, or change at any time, specifications or designs without notice and w

Locate mechanical draft system flue assembly at least48 in. from any opening through which combustion prod-ucts could enter the building, and at least

START-UP CHECKLIST(Remove and Store in Job File)I. PRELIMINARY INFORMATIONMODEL NO.:DATE:SERIAL NO.:TECHNICIAN:II. PRE-START-UP (insert checkmark in b

Table 1 — Physical DataUNIT SIZE 48TJ 008D/E/F 009D/E/F 012D/E/F 014D/ENOMINAL CAPACITY (tons) 71⁄281⁄210 121⁄2OPERATING WEIGHT (lb)UnitAl/Al* 870 880

Table 1 — Physical Data (cont)UNIT SIZE 48TJ 008D/E/F 009D/E/F 012D/E/F 014D/EFURNACE SECTIONRollout Switch CutoutTemp (F) 195 195 195 195Burner Orific

UNIT48TJSTANDARDUNITWEIGHTCORNERWEIGHT(A)CORNERWEIGHT(B)CORNERWEIGHT(C)CORNERWEIGHT(D)‘‘H’’ ‘‘J’’ ‘‘K’’ ‘‘L’’Lb Kg Lb Kg Lb Kg Lb Kg Lb Kg ft-in. mm f

Step 5 — Install Flue Hood — Flue hood is shippedscrewed to the burner compartment access panel. Removefrom shipping location and, using screws provid

Route thermostat cable or equivalent single leads of col-ored wire from subbase terminals to low-voltage connec-tions on unit (shown in Fig. 11) as de