Manufacturer reserves the right to discontinue, or change at any time, specifications or designs without notice and without incurring obligations.
Catalog No. 04-53480257-01 Printed in U.S.A. Form 48TC-7-16-02SI Pg 1 5-2020 Replaces: 48TC-7-16-01SI
Installation Instructions
CONTENTS
Page
SAFETY CONSIDERATIONS . . . . . . . . . . . . . . . . . . . 2
GENERAL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Rated Indoor Airflow (cfm) . . . . . . . . . . . . . . . . . . . . . 3
Pre-Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
INSTALLATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Step 1 — Plan f
or Unit Location . . . . . . . . . . . . . . . 16
• ROOF MOUNT
Step 2 — Plan for Sequence of Unit Installation . . 17
• CURB-MOUNTED INSTALLATION
• PAD-MOUNTED INSTALLATION
• FRAME-MOUNTED INSTALLATION
Step 3 — Inspect Unit . . . . . . . . . . . . . . . . . . . . . . . . 17
Step 4 — Provide Unit Support . . . . . . . . . . . . . . . . 17
• ROOF CURB MOUNT
• FOR SIZES 07-14 ONLY
• SLAB MOUNT (HORIZONTAL UNITS ONLY)
• ALTERNATE UNIT SUPPORT (IN LIEU OF CURB OR
SLAB MOUNT)
Step 5 — Field Fabricate Ductwork . . . . . . . . . . . . . 21
Step 6 — Rig and Place Unit . . . . . . . . . . . . . . . . . . 21
• POSITIONING ON CURB
Step 7 — Convert to Horizontal and Connect
Ductwork (When Requir
ed) . . . . . . . . . . . . . . . . . 23
• SIZES 07-14
• SIZE 16
• ALL UNITS
Step 8 — Install Outside Air Hood . . . . . . . . . . . . . . 24
• ECONOMIZER AND TWO-POSITION DAMPER HOOD
PACKAGE REMOVAL (FACTORY OPTION SIZES 07-
14)
• TWO-POSITION DAMPER HOOD REMOVAL
(FACTORY OPTION SIZE 16)
• ECONOMIZER AND TWO-POSITION DAMPER HOOD
SETUP (SIZE 16)
Step 9 — Install Flue Hood . . . . . . . . . . . . . . . . . . . . 26
Step 10 — Install Gas Piping . . . . . . . . . . . . . . . . . . 26
• FACTORY-OPTION THRU-BASE CONNECTIONS
(GAS CONNECTIONS) (SIZES 07-14)
• FACTORY-OPTION THRU-BASE GAS CONNECTIONS
(SIZE 16)
• ALL UNITS
Step 11 — Install External Condensate Trap and
Line . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .30
Step 12 — Make Electrical Connections . . . . . . . .
.30
• FIELD POWER SUPPLY (SIZES 07-14)
• FIELD POWER SUPPLY (SIZE 16)
• ALL UNITS
• UNITS WITH FACTORY-INSTALLED NON-FUSED
DISCONNECT
• UNITS WITHOUT FACTORY-INSTALLED NON-
FUSED DISCONNECT
• ALL UNITS
• CONVENIENCE OUTLETS
• ALL UNITS
• FACTORY-OPTION THRU-BASE CONNECTIONS
(ELECTRICAL CONNECTIONS) (SIZE 07-14)
• FACTORY-OPTION THRU-BASE CONNECTIONS
(ELECTRICAL CONNECTIONS) (SIZE 16)
• HUMIDI-MIZER® CONTROL CONNECTIONS
EconoMi$er® X (Factory-Installed Option) . . . . . . .41
• PRODUCT DESCRIPTION
• SYSTEM COMPONENTS
• SPECIFICATIONS
• INPUTS
• OUTPUTS
• ENVIRONMENTAL
• ECONOMIZER MODULE WIRING DETAILS
• S-BUS SENSOR WIRING
• CO2 SENSOR WIRING
• INTERFACE OVERVIEW
• USER INTERFACE
• KEYPAD
• MENU STRUCTURE
• SETUP AND CONFIGURATION
• TIME-OUT AND SCREENSAVER
• ENTHALPY SETTINGS
• TWO-SPEED FAN OPERATION
• CHECKOUT
• TROUBLESHOOTING
PremierLink™ Control . . . . . . . . . . . . . . . . . . . . . . . .54
RTU Open Control System . . . . . . . . . . . . . . . . . . . .54
• SMOKE DETECTORS
• COMPLETING INSTALLATION OF RETURN-AIR
SMOKE SENSOR
• ADDITIONAL APPLICATION DATA
Step 13 — Adjust Factory-Installed Options . . . . . .55
• SMOKE DETECTORS
48TC*D/E units for installation in the United States contain use of Carrier's Staged Air Volume (SAV™) 2-speed
indoor fan control system. This complies with the U.S. Department of Energy (DOE) efficiency standard of 2018.
48TC*D/E units for installation outside the United States
may or may not contain Carrier's Staged Air Volume
(SAV) 2-speed indoor fan control system as they are not required to comply with the U.S. Department of
Energy (DOE) 2018 mandatory efficiency standard.
48TC*M units for installation inside or outside the United States
do not contain use of Carrier’s Staged Air
Volume (SAV) 2-speed indoor fan motor control system as they comply with the U.S. Department of Energy
(DOE) 2018 mandatory efficiency standard without their use.
For specific details on operation of the Carrier SAV 2-speed indoor fan system refer to the Variable Frequency
Drive (VFD) Factory-Installed Option 2-Speed Motor Control Installation, Setup, and Troubleshooting manual.
WeatherMaker
®
48TC 07-16
Single Package Rooftop with
Gas Heat/Electric Cooling
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