Carrier 48TM016-028 SERVICE TRAINING

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

Catalog No. 04-53480016-01 Printed in U.S.A. Form 48TM-4SI Pg 58 3-06 Replaces: 48TM-3SI

Book 1 4

Tab 1a 6 a

Copyright 2006 Carrier Corporation

SERVICE TRAINING

Packaged Service Training programs are an excellent way to increase your knowledge of the equipment

discussed in this manual, including:

• Unit Familiarization • Maintenance

• Installation Overview • Operating Sequence

A large selection of product, theory, and skills programs are available, using popular video-based formats

and materials. All include video and/or slides, plus companion book.

Classroom Service Training which includes “hands-on” experience with the products in our labs can

mean increased confidence that really pays dividends in faster troubleshooting and fewer callbacks. Course

descriptions and schedules are in our catalog.

CALL FOR FREE CATALOG 1-800-644-5544

[ ] Packaged Service Training [ ] Classroom Service Training

Contents

Main Installation, Start-Up and Service Instructions CONTENTS SAFETY CONSIDERATIONS 48TM016-028 Single-Package Rooftop Units Electric Cooling/Gas Heating INSTALLATION Step 1 Provide Unit Support Step 2 Rig and Place Unit Page Page Fig. 3 Rigging Details Page Page Page Table 1 Physical Data Table 1 Physical Data (cont) Step 3 Field F abricate Duct work Step 4 Make Un it Duct Conn ections Step 5 Install Flue Hood and Wind Baffle Step 6 T rap Condensate Drain Step 7 Orifice Chan ge Step 8 Install Gas Piping Step 9 Make Electrical Connections Page Table 5 Electrical Data Never operate a motor where a phase imbalance in supply voltage is greater than 2%. Step 10 Make Outdoor-Air Inlet Adjust- ments Step 11 Install Outdoor-Air Hood Step 12 Install All Accessori es Page Step 13 Adjust Factory-Installed Options FIELD THERMOSTAT* Fig. 26 Typical PremierLink Controls Wiring PremierLink SPT Space Temperature Sensor SAT Supply Air Temperature Sensor PL Plug Page Page Page Page Page Fig. 36 EconoMi$erIV Wiring Fig. 37 EconoMi$er2 Wiring Page Page Fig. 43 CO2Sensor Maximum Range Setting 2345678 5000 4000 3000 Page Step 14 Install Humidistat for Optional Moisture Mi$er P a c kage Page START-UP Unit Preparation Table 14 Fan Performance 48TMD016 (Low Heat Units)* Table 15 Fan Performance 48TMF016 (High Heat Units)* Table 16 Fan Performance 48TMD020 (Low Heat Units)* Refer to page 39 for general Fan Performance Data notes. Table 17 Fan Performance 48TMF020 (High Heat Units)* Refer to page 39 for general Fan Performance Data notes. Table 18 Fan Performance 48TMD025 (Low Heat Units)* Table 19 Fan Performance 48TMF025 (High Heat Units)* Table 20 Fan Performance 48TMD028 (Low Heat Units)* Refer to this page for general Fan Performance Data notes. Table 21 Fan Performance 48TMF028 (High Heat Units)* Refer to this page for general Fan Performance Data notes. GENERAL NOTES FOR FAN PERFORMANCE DATA TABLES Table 22 Air Quantity Limits Table 23 Accessory/FIOP Static Pressure (in. wg)* 48TM016-028 Table 24 Fan Rpm at Pulley Settings* Table 25 Evaporator-Fan Motor Data Table 26 Evaporator-Fan Motor Efficiency Operating Sequence Page SERVICE Cleaning Lubrication Evaporator Fan Performance Adjustment (Fig. 50 and 51) Evaporator F an Se rvice and Replacement Belt T ension Adjust ment Condenser-Fan Adjustment Po w e r F a i l u r e Refrigerant Charge Gas Valve Adjustment Main Burners Filter Dri er Protective Devices Relief De vices Diagnosti c IGC Control LEDs Optional Hinged Access Doo rs Page Page LEGEND AND NOTES FOR FIG. 57 AND 58 LEGEND TROUBLESHOOTING Unit T rou bleshooting EconoMi$erIV T r oubleshooting Page Table 28 Heating Service Analysis Table 29 MoistureMi$er Dehumidification Subcooler Service Analysis Table 30 EconoMi$erIV Input/Output Logic Page Page INDEX SERVICE TRAINING Page START-UP CHECKLIST PRE-START-UP START-UP