Carrier WeatherMaker 48GE Bedienungsanleitung

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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. 04-53480510-01Printed in U.S.A.Form No. 48GE-17-28-01SI Rev APg 1 3-25Replaces: New

Installation Instructions

CONTENTS

Page

SAFETY CONSIDERATIONS . . . . . . . . . . . . . . . . . . .1

GENERAL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3

Rated Indoor Airflow (cfm) . . . . . . . . . . . . . . . . . . . . .3

INSTALLATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . .20

Jobsite Survey . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .20

Step 1 — Plan for Unit Location . . . . . . . . . . . . . . .20

•ROOF MOUNT

Step 2 — Plan for Sequence of Unit Installation . .20

•CURB-MOUNTED INSTALLATION

•PAD-MOUNTED INSTALLATION

•FRAME-MOUNTED INSTALLATION

Step 3 — Inspect Unit . . . . . . . . . . . . . . . . . . . . . . . .20

Step 4 — Provide Unit Support . . . . . . . . . . . . . . . .21

•ROOF CURB MOUNT

•SLAB MOUNT (HORIZONTAL UNITS ONLY)

•ALTERNATE UNIT SUPPORT (IN LIEU OF CURB OR

SLAB MOUNT)

Step 5 — Field Fabricate Ductwork . . . . . . . . . . . . .25

Step 6 — Rig and Place Unit . . . . . . . . . . . . . . . . . .25

•POSITIONING ON CURB

Step 7 — Horizontal Duct Connection . . . . . . . . . .26

Step 8 — Install Outside Air Hood - Factory Option . 26

Step 9 — Assemble Barometric Hood . . . . . . . . . .27

•BAROMETRIC HOOD (VERTICAL CONFIGURATION)

•BAROMETRIC HOOD (HORIZONTAL

CONFIGURATION)

Step 10 — Install Flue Hood and Combustion Air

Hood . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .28

Step 11 — Install Gas Piping . . . . . . . . . . . . . . . . . .29

•GAS SUPPLY LINE

•FACTORY OPTION THRU-BASE CONNECTIONS

Step 12 — Install External Condensate Trap and

Line . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .31

Step 13 — Make Electrical Connections . . . . . . . . .31

•FIELD POWER SUPPLY

•UNITS WITHOUT FACTORY-INSTALLED NON-

FUSED DISCONNECT OR HACR

•UNITS WITH FACTORY-INSTALLED NON-FUSED

DISCONNECT OR HACR

•ALL UNITS

•CONVENIENCE OUTLETS

•FACTORY OPTION THRU-BASE CONNECTIONS

•UNITS WITHOUT THRU-BASE CONNECTIONS

•FIELD CONTROL WIRING

•THERMOSTAT

•UNITS WITHOUT THRU-BASE CONNECTIONS

•HEAT ANTICIPATOR SETTINGS

•TRANSFORMER CONNECTION FOR 208 V POWER

SUPPLY

Humidi-MiZer

®

System Control Connections . . . . .36

•HUMIDI-MIZER — SPACE RH CONTROLLER

Typical Unit Wiring Diagrams . . . . . . . . . . . . . . . . . .37

Integrated Gas Controller . . . . . . . . . . . . . . . . . . . . .44

Leak Dissipation System . . . . . . . . . . . . . . . . . . . . .47

•SEQUENCE OF OPERATION

•LEAK DISSIPATION SYSTEM SELF-TEST

•TROUBLESHOOTING

Humidi-MiZer Dehumidification System 

(Optional) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .50

•NORMAL COOLING

•DEHUM/MECH COOLING (SUBCOOLING) MODE

•DEHUMIDIFICATION (HOT GAS REHEAT) MODE

•REHEAT CONTROL

Temporary Furnace Operation During 

Construction . . . . . . . . . . . . . . . . . . . . . . . . . . . . .51

EconomizerONE (Factory Option) . . . . . . . . . . . . . .52

•ECONOMIZER SETTINGS

•WIRING

•SETUP AND CONFIGURATION

•INSTALLING OPTIONAL HH57LW001 SINGLE

OUTSIDE AIR ENTHALPY SENSOR

•CHECKOUT

•TROUBLESHOOTING

Adjust Factory-Installed Options . . . . . . . . . . . . . . .73

•SMOKE DETECTORS

•ECONOMIZERONE OCCUPANCY SWITCH

Step 14 — Install Accessories . . . . . . . . . . . . . . . . .73

Step 15 — Fan Speed Set Up . . . . . . . . . . . . . . . . . .73

•UNITS WITH ELECTROMECHANICAL CONTROLS

•UNITS WITH SYSTEMVU™ CONTROLS

COMPRESSOR ROTATION . . . . . . . . . . . . . . . . . . . .75

PRESSURE RELIEF VALVES . . . . . . . . . . . . . . . . . .76

FASTENER TORQUE VALUES . . . . . . . . . . . . . . . . .76

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, repair, or

service air-conditioning equipment.

Untrained personnel can perform basic maintenance functions of

cleaning coils and filters and replacing filters. All other operations

should be performed by trained service personnel. When working

on air-conditioning equipment, observe precautions in the

literature, tags and labels attached to the unit, and other safety

precautions that may apply.

Follow all safety codes, including ANSI (American National

Standards Institute) Z223.1. Wear safety glasses and work gloves.

Use quenching cloth for unbrazing operations. Have fire

extinguisher available for all brazing operations.

It is important to recognize safety information. This is the safety-

alert symbol . When you see this symbol on the unit and in

WeatherMaster

®

48GE**17-28

Single Package Rooftop

with Gas Heat/Electric Cooling

and EcoBlue™ Fan Technology

Produktspezifikationen