Carrier SINGLE PACKAGED ELECTRIC COOLING UNITS 50GX Operations Instructions

50GS, 50GXSingle Package Electric Cooling UnitsInstallation, Start-Up, and Operating Instructions50GS Sizes 018-060, 50GX Sizes 024-060NOTE: Read the

Table 4—Electrical Data—50GSUNIT 50GSSIZEV-PH-HZVOLTAGERANGECOMPRESSOR OFM IFM ELECTRIC HEAT POWER SUPPLYMin Max RLA LRA FLA FLA Nominal kW* FLA MCA M

Table 5—Electrical Data—50GXUNIT 50GXSIZEV-PH-HZVOLTAGERANGECOMPRESSOR OFM IFM ELECTRIC HEAT POWER SUPPLYMin Max RLA LRA FLA FLA Nominal kW* FLA MCA M

CONTROL VOLTAGE CONNECTIONSNOTE: Do not use any type of power-stealing thermostat. Unitcontrol problems may result.Use no. 18 American Wire Gage (AWG)

PRE-START-UPFailure to observe the following warnings could result inserious personal injury:1. Follow recognized safety practices and wear protective

Fig. 12—208/230-1-60 Wiring DiagramC9900314

Fig. 13—208/230-3-60 Wiring DiagramC9900415

Fig. 14—460-3-60 Wiring DiagramC9900516

NOTE: Adjustment of the refrigerant charge is not requiredunless the unit is suspected of not having the proper R-22 charge.A superheat charging chart

Table 6—Wet Coil Air Delivery (Deduct 10% for 208v)*Horizontal and Downflow DischargeUnit 50GS018-060230 AND 460 VOLTUnit Motor SpeedExternal Static P

Table 7—Wet Coil Air Delivery (Deduct 10% for 208v)*Horizontal and Downflow DischargeUnit 50GX024-060230 AND 460 VOLTUnit Motor SpeedExternal Static P

UNIT ELECTRICAL CHARACTERISTICSUNIT WEIGHTUNIT HEIGHTIN. [MM]"A"CENTER OF GRAVITYIN. [MM]lb kg X Y Z50GS018 208230-1-60 254 115.2 35.02 [889

Fig. 15—Cooling Charging Chart, 50GS018 UnitsC99037Fig. 16—Cooling Charging Chart, 50GS024 UnitsC99039Fig. 17—Cooling Charging Chart, 50GS030 UnitsC99

Fig. 19 — Cooling Charging Chart, 50GS042 UnitsC99041Fig. 20—Cooling Charging Chart, 50GS048 UnitsC99042°OUTDOOR TEMP ° F ° C115 4645 755 1365 187

Fig. 23—Cooling Charging Chart, 50GX030 UnitsC99046°(030) 60HZ CHARGING CHARTOUTDOOR TEMP ° F ° C115 4645 755 1365 1875 2495 35105 4185 29Fig. 24—

must be performed on this equipment. This cooling unit should beinspected at least once each year by a qualified service person. Totroubleshoot heatin

3. Restore electrical power to unit. Start unit and check forproper blower rotation and motor speeds during heating andcooling cycles.CONDENSER COIL,

Table 8—Troubleshooting—CoolingSYMPTOM CAUSE REMEDYCompressor and condenser fan will not start.Power failure Call power company.Fuse blown or circuit

START-UP CHECKLIST(REMOVE AND STORE IN JOB FILE)I. PRELIMINARY INFORMATIONModel No...

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Copyright 1999 CARRIER Corp. • 7310 W. Morris St. • Indianapolis, IN 46231 50gsx1siManufacturer reserves the right to discontinue, or change at any ti

UNIT ELECTRICAL CHARACTERISTICSUNIT WEIGHTUNIT HEIGHTIN. [MM]"A"CENTER OF GRAVITYIN. [MM]lb kg X Y Z50GS048 208-230-1-60, 208/230-3-60, 460-

A993403.0"4.0"BASE PANBOTTOM SUPPLY0.75"SIDE PANELSUPPORT RIB(S)COUNTER FLASHING(FIELD SUPPLIED)NAILERROOFING FELT(FIELD SUPPLIED)CANT

GENERAL — The 50GS and 50GX units (see Fig. 1) are fullyself-contained, and designed for outdoor installation. See Fig. 2and 3 for unit dimensions. Al

INSTALLATION1. Position the lifting bracket assembly around the base of theunit. Leave the top shipping skid on the unit to act as aspreader bar. Be s

slope of at least one in. for every 10 ft of horizontal run. Be sureto check the drain tube for leaks. Prime trap at the beginning of thecooling seaso

CONFIGURING UNITS FOR DOWNFLOW (VERTICAL) DIS-CHARGEBefore performing service or maintenance operations on thesystem, turn off main power to unit or e

Step 8—Install Electrical ConnectionsThe unit cabinet must have an uninterrupted, unbrokenelectrical ground to minimize the possibility of personalinj