Carrier 50TC D14 Series Installation Instructions Manual

50TC*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.
50TC*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.
50TC*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.
CONTENTS
SAFETY CONSIDERATIONS . . . . . . . . . . . . . . . . . . . . 1
GENERAL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Rated Indoor Airflow (cfm) . . . . . . . . . . . . . . . . . . . . . 2
Pre-Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
INSTALLATION. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Jobsite Survey . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Step 1 - Plan for Unit Location . . . . . . . . . . . . . . . . 15
• ROOF MOUNT
Step 2 - Plan for Sequence of Unit Installation . . . 15
• CURB-MOUNTED INSTALLATION
• PAD-MOUNTED INSTALLATION
• FRAME-MOUNTED INSTALLATION
Step 3 - Inspect Unit . . . . . . . . . . . . . . . . . . . . . . . . 16
Step 4 - Provide Unit Support . . . . . . . . . . . . . . . . . 16
• ROOF CURB MOUNT
• SLAB MOUNT (HORIZONTAL UNITS ONLY)
• ALTERNATE UNIT SUPPORT (IN LIEU OF CURB OR
SLAB MOUNT)
Step 5 - Field Fabricate Ductwork . . . . . . . . . . . . . 20
• FOR UNITS WITH ACCESSORY ELECTRIC HEATERS
Step 6 - Rig and Place Unit . . . . . . . . . . . . . . . . . . . 20
• POSITIONING ON CURB (50TC 07-14)
• POSITIONING ON CURB (50TC 16)
Step 7 - Convert to Horizontal and Connect
Ductwork (when required). . . . . . . . . . . . . . . . . . . 21
• 50TC 07-14 UNITS
• 50TC 16 UNITS
Step 8 - Install Outside Air Hood . . . . . . . . . . . . . . 22
• 50TC 07-14 OUTSIDE AIR HOOD
• 50TC 16 OUTSIDE AIR HOOD
Step 9 - Install External Condensate Trap and
Line . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
Step 10 - Make Electrical Connections . . . . . . . . . 38
• 50TC 07-14 UNIT ELECTRICAL CONNECTIONS
• FIELD WIRING FOR 50TC 07-14 UNITS
• CONVENIENCE OUTLETS FOR 50TC 07-14 UNITS
• 50TC 16 UNIT ELECTRICAL CONNECTIONS
• FIELD WIRING FOR 50TC 16 UNITS
• CONVENIENCE OUTLETS FOR 50TC16 UNITS
Electric Heaters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48
• 50TC 07-14 UNIT ELECTRIC HEATERS
• 50TC 16 UNIT ELECTRIC HEATERS
Humidi-MiZer® System Control Connections . . . . . 51
• HUMIDI-MIZER - SPACE RH CONTROLLER
Manufacturer reserves the right to discontinue, or change at any time, specifications or designs without notice and without incurring obligations.
Catalog No. 04-53500214-01
Installation Instructions
Printed in U.S.A. Form 50TC-7-16-01SI
Single Package Rooftop Cooling Only
with Puron ®
• 50TC 07-14 UNIT HUMIDI-MIZER
• 50TC 16 UNIT HUMIDI-MIZER
EconoMi$er® X (Factory-Installed Option). . . . . . . .55
• PRODUCT DESCRIPTION
• SYSTEM COMPONENTS
• SPECIFICATIONS
• INPUTS
• OUTPUTS
• ENVIRONMENTAL
• ECONOMIZER MODULE WIRING DETAILS
• S-BUS SENSOR WIRING
• CO2 SENSOR WIRING
• INTERFACE OVERVIEW
• USER INTERFACE
• KEYPAD
• MENU STRUCTURE
• SETUP AND CONFIGURATION
• TIME-OUT AND SCREEN SAVER
• ENTHALPY SETTINGS
• TWO-SPEED FAN OPERATION
• CHECKOUT
• TROUBLESHOOTING
PremierLink™ Controller (Factory Option) . . . . . . .68
RTU Open Controller (Factory-Installed Option) . . .68
Smoke Detectors. . . . . . . . . . . . . . . . . . . . . . . . . . . . .80
• ADDITIONAL APPLICATION DATA
Step 11 - Adjust Factory-Installed Options . . . . . .81
• SMOKE DETECTORS
• ECONOMI$ER IV OCCUPANCY SWITCH
Step 12 - Install Accessories . . . . . . . . . . . . . . . . . .81
Step 13 - Check Belt Tension . . . . . . . . . . . . . . . . .81
• BELT FORCE - DEFLECTION METHOD
• BELT TENSION METHOD
Pre-Start and Start-Up . . . . . . . . . . . . . . . . . . . . . . . .82
Troubleshooting the UltraTech™ Compressor . . . .82
• MODULATION CONTROL INPUT SPECIFICATIONS
START-UP CHECKLIST . . . . . . . . . . . . . . . . . . . . .CL-1

SAFETY CONSIDERATIONS

Installation and servicing of air-conditioning equipment can be
hazardous due to system pressure and electrical components.
Only trained and qualified service personnel should install, re-
pair, or service air-conditioning equipment.
Untrained personnel can perform basic maintenance functions
of cleaning coils and filters and replacing filters. All other op-
erations should be performed by trained service personnel.
Pg 1 8-19
WeatherMaker
50TC07-16
(R-410A) Refrigerant
Replaces: 50TC-7-01SI, 50TC-8-16-02SI
®