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Manufacturer reserves the right to discontinue, or change at any time, specifications or designs without notice and without incurring obligations.
Catalog No. 04-53480180-01
Printed in U.S.A.
Form 48TC-4-7-04SI
Pg 1
4-18
Replaces: 48TC-4-7-03SI
Installation Instructions
CONTENTS
Page
GENERAL
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
SAFETY CONSIDERATIONS
. . . . . . . . . . . . . . . . . . . . 1
INSTALLATION
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Job-Site Survey
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Step 1 — Plan for Unit Location
. . . . . . . . . . . . . . . . . 6
Step 2 — Plan for Sequence of Unit
Installation
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
• CURB-MOUNTED INSTALLATION
• PAD-MOUNTED INSTALLATION
• FRAME-MOUNTED INSTALLATION
Step 3 — Inspect Unit
. . . . . . . . . . . . . . . . . . . . . . . . . . 7
Step 4 — Provide Unit Support
. . . . . . . . . . . . . . . . . 7
• ROOF CURB MOUNT
• SLAB MOUNT (HORIZONTAL UNITS ONLY)
• ALTERNATE UNIT SUPPORT (IN LIEU OF CURB
OR SLAB MOUNT)
Step 5 — Field Fabricate Ductwork
. . . . . . . . . . . . . . 9
Step 6 — Rig and Place Unit
. . . . . . . . . . . . . . . . . . . . 9
• POSITIONING ON CURB
Step 7 — Convert to Horizontal and Connect
Ductwork (When Required)
. . . . . . . . . . . . . . . . . 10
Step 8 — Install Outside Air Hood
. . . . . . . . . . . . . . 10
• ECONOMIZER AND TWO POSITION DAMPER
HOOD PACKAGE REMOVAL AND SETUP — FAC-
TORY OPTION
• ECONOMIZER HOOD AND TWO-POSITION HOOD
Step 9 — Install Flue Hood
. . . . . . . . . . . . . . . . . . . . 11
Step 10 — Install Gas Piping
. . . . . . . . . . . . . . . . . . 11
• FACTORY-OPTION THRU-BASE CONNECTIONS
(GAS CONNECTIONS)
Step 11 — Install External Condensate Trap and
Line
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Step 12 — Make Electrical Connections
. . . . . . . . 14
• FIELD POWER SUPPLY
• UNITS WITH FACTORY-INSTALLED NON-FUSED
DISCONNECT
• UNITS WITHOUT FACTORY-INSTALLED NON-
FUSED DISCONNECT
• CONVENIENCE OUTLETS
• FACTORY-OPTION THRU-BASE CONNECTIONS
(ELECTRICAL CONNECTIONS)
• HUMIDI-MIZER
®
CONTROL CONNECTION
• ECONOMI$ER X (FACTORY-INSTALLED OPTION)
• ECONOMIZER MODULE WIRING DETAILS
• INTERFACE OVERVIEW
• PREMIERLINK
™
(FACTORY-OPTION)
• PREMIERLINK FIELD CONNECTIONS
• ECONOMIZER CONTROLS
• RTU OPEN CONTROL SYSTEM
• RTU OPEN CONTROL SYSTEM FIELD
CONNECTIONS
• RTU OPEN COMMUNICATION WIRING
PROTOCOLS
• LOCAL ACCESS
• OUTDOOR AIR ENTHALPY CONTROL
• SMOKE DETECTORS
Step 13 — Adjust Factory-Installed Options
. . . . 57
• SMOKE DETECTORS
• ECONOMI$ER IV OCCUPANCY SWITCH
Step 14 — Install Accessories
. . . . . . . . . . . . . . . . . 57
Step 15 — Check Belt Tension
. . . . . . . . . . . . . . . . 57
• BELT FORCE — DEFLECTION METHOD
• BELT TENSION METHOD
Pre-Start and Start-Up
. . . . . . . . . . . . . . . . . . . . . . . . 58
START-UP CHECKLIST
. . . . . . . . . . . . . . . . . . . . . CL-1
GENERAL
These installation instructions cover the 48TC units with
gas heat and electric cooling. Units are pre-wired and pre-
charged with environmentally sound Puron
®
(R-410A)
refrigerant at the factory. See Fig. 1 for model number nomen-
clature. See Fig. 2 for unit dimensions. See Fig. 3 for service
clearances.
SAFETY CONSIDERATIONS
Improper installation, adjustment, alteration, service, main-
tenance, or use can cause explosion, fire, electrical shock or
other conditions which may cause personal injury or property
damage. Consult a qualified installer, service agency, or your
distributor or branch for information or assistance. The quali-
fied installer or agency must use factory-authorized kits or ac-
cessories when modifying this product. Refer to the individual
instructions packaged with the kits or accessories when
installing.
Follow all safety codes. Wear safety glasses and work
gloves. Use quenching cloths for brazing operations and have a
48TC 07 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 07 units for installation outside the United States may or may not contain use of the SAV 2-speed
indoor fan control system as they are not required to comply with the U.S. Department of Energy (DOE)
efficiency standard of 2018.
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 04-07
Single Package Rooftop with
Gas Heat/Electric Cooling
Содержание WeatherMaker 48TC 04
Страница 4: ...4 Fig 2 Unit Dimensional Drawing ...
Страница 5: ...5 Fig 2 Unit Dimensional Drawing cont ...
Страница 21: ...21 Fig 34 48TC B07 Unit with Humidi MiZer Adaptive Dehumidification System Humidistat Wiring ...
Страница 39: ...39 Fig 45 PremierLink Wiring Schematic ...
Страница 40: ...40 Fig 46 PremierLink Wiring Schematic with Humidi MiZer System ...
Страница 48: ...48 Fig 65 Typical RTU Open System Control Wiring Diagram ...
Страница 49: ...49 Fig 66 Typical RTU Open System Control Wiring Diagram with Humidi MiZer System ...