Carrier SINGLE PACKAGED ELECTRIC COOLING UNITS 50GX- User Manual
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Table of Contents:
- Page 2 – REQUIRED CLEARANCE FOR OPERATION AND SERVICING
- Page 4 – Fig. 4—Roof Curb Dimensions
- Page 5 – Fig. 5—Slab Mounting Details
- Page 6 – Step 6—Connect Condensate Drain; Fig. 6—Suggested Rigging
- Page 7 – Step 7—Install Duct Connections; Use flexible connectors between ductwork and; Table 1—Physical Data—Unit 50GS; Table 2—Physical Data—Unit 50GX; Fig. 7—Condensate Trap
- Page 8 – Table 3—Minimum Airflow for Safe Electric Heater; Fig. 8—Supply and Return Duct Opening
- Page 9 – Step 8—Install Electrical Connections
- Page 10 – Table 4—Electrical Data—50GS
- Page 11 – Table 5—Electrical Data—50GX
- Page 13 – Fig. 11—Fan Blade Clearance
- Page 17 – MAINTENANCE
- Page 18 – Horizontal and Downflow Discharge
- Page 21 – Fig. 19 — Cooling Charging Chart, 50GS042 Units
- Page 25 – Table 8—Troubleshooting—Cooling
- Page 26 – I. PRELIMINARY INFORMATION; ___ Verify that all packing materials have been removed from unit; TEMPERATURE
50GS, 50GX
Single Package Electric Cooling Units
Installation, Start-Up, and Operating Instructions
50GS Sizes 018-060, 50GX Sizes 024-060
NOTE:
Read the entire instruction manual before starting the
installation.
Index
Page
SAFETY CONSIDERATIONS .....................................................1
RULES FOR SAFE INSTALLATION AND OPERATION....1-5
General ......................................................................................5
RECEIVING AND INSTALLATION ..........................................5
CHECK EQUIPMENT ..................................................................5
Identify Unit ..............................................................................5
Inspect Shipment.......................................................................5
PROVIDE UNIT SUPPORT .........................................................5
Roof Curb..................................................................................5
Slab Mount ................................................................................5
Ground Level ............................................................................5
FIELD FABRICATE DUCTWORK .............................................5
PROVIDE CLEARANCES ...........................................................5
RIG AND PLACE UNIT ...........................................................5-6
Inspection ..................................................................................5
Installation .................................................................................6
CONNECT CONDENSATE DRAIN ........................................6-7
INSTALL DUCT CONNECTIONS ..........................................7-8
Configuring Units for Downflow (vertical) DISCHARGE.....8
INSTALL ELECTRICAL CONNECTIONS ...............................9
High-Voltage Connections ..................................................9-12
Standard Connection ...............................................................12
Special Procedures for 208-V Operation ............................9-12
Control Voltage Connections .................................................12
Transformer Protection ...........................................................12
PRESTART-UP ............................................................................13
START-UP ..............................................................................13-17
MAINTENANCE....................................................................17-24
TROUBLESHOOTING ...............................................................25
START-UP CHECKLIST ............................................................26
NOTE TO INSTALLER — Before the installation, READ THESE
INSTRUCTIONS CAREFULLY AND COMPLETELY. Also,
make sure the User’s Manual and Replacement Guide are left with
the unit after installation.
SAFETY CONSIDERATIONS
Installation and servicing of air-conditioning equipment can be
hazardous due to system pressure and electrical components. Only
trained and qualified personnel should install, repair, or service
air-conditioning equipment.
Untrained personnel can perform basic maintenance functions of
cleaning coils and 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. Wear safety glasses and work gloves. Use
quenching cloth for unbrazing operations. Have fire extinguisher
available for all brazing operations. Consult a qualified installer or
service agency for information or assistance. The qualified in-
staller or agency must use only factory-authorized kits or acces-
sories when modifying this product.
Before performing service or maintenance operations on
system, turn off power to unit. Turn off accessory heater
power switch, if applicable. Electrical shock can cause
personal injury.
RULES FOR SAFE INSTALLATION AND OPERATION
Recognize safety information. This is the safety-alert symbol
.
When you see this symbol in instructions or manuals, be alert to
the potential for personal injury.
Understand the signal words DANGER, WARNING, CAUTION,
and NOTE. These words are used with the safety-alert symbol.
DANGER identifies the most serious hazards which will result in
severe personal injury or death. WARNING signifies a hazard
which could result in personal injury or death. CAUTION is used
to identify unsafe practices which would result in minor personal
injury or product and property damage. NOTE is used to highlight
suggestions which will result in enhanced installation, reliability,
or operation.
These instructions cover minimum requirements and conform to
existing national standards and safety codes. In some instances,
these instructions exceed certain local codes and ordinances,
especially those that may not have kept up with changing residen-
tial construction practices. We require these instructions as a
minimum for a safe installation.
Fig. 1—Unit 50GS and 50GX
C99001
Visit www.carrier.com
Manufacturer reserves the right to discontinue, or change at any time, specifications or designs without notice and without incurring obligations.
Book 1
4
Tab
6a 8a
PC 101
Catalog No. 565-047
Printed in U.S.A.
Form 50GS,GX-1SI
Pg 1
11-99
Replaces: 50SS,SX-4SI
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Summary
UNIT ELECTRICAL CHARACTERISTICS UNIT WEIGHT UNIT HEIGHT IN. [MM] "A" CENTER OF GRAVITY IN. [MM] lb kg X Y Z 50GS018 208230-1-60 254 115.2 35.02 [889.5] 20.0 [508.0] 13.0 [330.2] 15.0 [381.0] 50GS024 208/230-1-60 260 117.9 35.02 [889.5] 19 [482.6] 13.0 [330.2] 15.0 [381.0] 50GS030 208/230-1-6...
A99340 3.0" 4.0" BASE PAN BOTTOM SUPPLY 0.75" SIDE PANEL SUPPORT RIB(S) COUNTER FLASHING(FIELD SUPPLIED) NAILER ROOFING FELT(FIELD SUPPLIED) CANT STRIP(FIELD SUPPLIED) ROOFING MATERIAL(FIELD SUPPLIED) INSULATION(FIELD SUPPLIED) SEAL STRIP(FACTORY SUPPLIED) A99320 3 2 13/16 7/8 A END VIEW...
GENERAL — The 50GS and 50GX units (see Fig. 1) are fullyself-contained, and designed for outdoor installation. See Fig. 2and 3 for unit dimensions. All unit sizes have discharge openingsfor both horizontal and downflow configurations, and are factoryshipped with all downflow duct openings covered . ...
