Carrier TJF004, TJF005-007, 48TJD, 48TJE specifications SW4, Switch Max. Vent Position

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LEGEND FOR FIG. 56 — TYPICAL WIRING SCHEMATIC AND COMPONENT ARRANGEMENT

IMPORTANT: Refer to unit wiring label for actual unit wiring information.

AHA — Adjustable Heat Anticipator BR — Burner Relay

CContactor, Compressor CAP — Capacitor

CC — Cooling Compensator COMP — Compressor Motor CR — Combustion Relay ECON — Economizer EQUIP — Equipment

FPT — Freeze-Up Protection Thermostat GND — Ground

GVR — Gas Valve Relay HPS — High-Pressure Switch HS — Hall-Effect Sensor HV — High Voltage

I — Ignitor

IDM — Induced-Draft Motor

IFM — Indoor (Evaporator) Fan Motor IGC — Integrated Gas Unit Controller LED — Light-Emitting Diode

LPS — Low-Pressure/Loss-of-Charge Switch LS — Limit Switch

MGV — Main Gas Valve MTR — Motor

OFM — Outdoor (Condenser) Fan Motor PL — Plug Assembly

QT — Quadruple Terminal

R — Relay

RS

Rollout Switch

SAT

Supply Air Thermostat

SEN

Sensor

SW1

Switch Fully Open

SW2

Switch Fully Closed

SW3

Switch Min. Vent Position

SW4

Switch Max. Vent Position

TC

Thermostat-Cooling

TH

Thermostat-Heating

TRAN — Transformer

Field Splice

Marked Wire

Terminal (Marked)

Terminal (Unmarked)

Terminal Block

Splice

Splice (Marked)

Factory Wiring Field Control Wiring Field Power Wiring Accessory or Optional Wiring

To indicate common potential only. Not to represent wiring.

NOTES:

1.If any of the original wire furnished must be replaced, it must be replaced with type 90 C wire or its equivalent.

2.Three-phase motors are protected under primary single-phasing conditions.

3.Thermostat: HH07AT170, 172, 174 and P272-2783

Subbase: HH93AZ176, 178 and P272-1882, 1883

4.Set heat anticipator at .14 amp. For units with 2 stages of heating, set stage two anticipator at .14 amp.

5.Use copper conductors only.

6.TRAN is wired for 230-v unit. If unit is to be run with 208-v power supply, disconnect BLK wire from 230-v tap and connect to 208-v tap.

Copyright 2000 Carrier Corporation

Manufacturer reserves the right to discontinue, or change at any time, specifications or designs without notice and without incurring obligations.

Book

1

4

PC 111

Catalog No. 534-774

Printed in U.S.A.

Form 48TJ-18SI

Pg 50

10-00

Replaces: 48TJ-16SI

Tab

1a

6a

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

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Contents Installation, Start-Up Service Instructions Horizontal Conversion Panels Viewed from Duct End Roof Curb Dimensions Unit Leveling Tolerances Make Electrical Connections Physical Data Unit Size 48TJLOSS-OF-CHARGE LOW Pressure Base Unit Dimensions Conduit Installation Flue Hood DetailsPower Wiring Connections Type FLA Electrical DataSupply Size RLA LRAMake Outdoor-Air Adjustments and Install Outdoor-Air Hood Typical Access Panel Locations Enthalpy Control Installation Horizontal Discharge Block-Off PlateWiring Connections for Outdoor-Air Thermostat Outdoor-Air Hood Assembly EconoMi$er Wiring Wiring Diagram for Power Exhaust System Default Potentiometer Settings Changeover Set PointsBelt Drive Motor Mounting Motor Data Fan Rpm at Motor Pulley SettingsAccessory/FIOP Static Pressure* in. wg 48TJ004-007 48TJ004 3 Tons Standard Motor Direct Drive 48TJ004 3 Tons Alternate Motor Belt Drive48TJ004 3 Tons HIGH-STATIC Motor Belt Drive 48TJ005 4 Tons Standard Motor Direct Drive48TJ005 4 Tons Alternate Motor Belt Drive 48TJ006 5 Tons Standard Motor Direct Drive 48TJ006 5 Tons Alternate Motor Belt Drive48TJ006 5 Tons HIGH-STATIC Motor Belt Drive 48TJ007 6 Tons Standard Motor Belt Drive 48TJ007 6 Tons HIGH-STATIC Motor Belt Drive 189 109149 2291005 10281064 9381700 750 473 806 536 48TJ005 4 Tons Alternate Motor Belt Drive817 1900 826 63048TJ005 4 Tons HIGH-STATIC Motor Belt Drive 1800 852 578 1600 770 420 826 4831700 811 494 865 567 1900 894 5671252 12211600 826 483 931 641 1020 788 1101 956 1178 1700 865 567 966 725 1051 883 1133 1061 1205971 787 1022 867 885 623 942 700928 700 982 779 1015 891 1063 9982100 1063 998 1140 1064 1196 1272 1292 1900 982 779 1084 932 1160 1006 1223 11142000 1022 867 1121 1014 1188 1097 1254 1216 2200 1104 1081 1159 1106 1229 1258Gas Propane Orifice Size† 000 Altitude CompensationElevation Heating Page Service Lubrication Cooling Charging Chart, 48TJ004 Flashes LED Error Code DescriptionFlash† Burner Tray Details Symptom Cause Remedy LED Error Code Service AnalysisHeating Service Analysis Problem Cause RemedyCooling Service Analysis Compressor operates continuouslyDurablade Economizer Troubleshooting Damper does notEconoMi$er Troubleshooting Problem Potential Cause RemedyTypical Wiring Diagram and Component Arrangement Switch Max. Vent Position SW4Page START-UP Checklist