User`s manual

ManualsBrandsYork ManualsAir Conditioner018-060

50GS, 50GX

SingMe Packaged EMectric CooMing Units

\isit _ _ ?_ carrier.corn

Installation, Start-Up, and Operating

50GS Sizes 018-060, 50GX Sizes 024-060

NFATUNG & COOLING

NOTE: Read the entire instruction manual be%re starting the

installation.

This symbol -->indicates a change since the last issue.

TABLE OF CONTENTS

SAFETY CONSIDERATIONS 1

Introduction 2

RE( EIVING AND INSTALLATION .......................................... 2

(beck Equipment ...................................................................... 2

IDENTIFY UNIT ................................................................ 2

INSPECT SHIPMENT ........................................................ 2

Provide Unit Support ................................................................ 2

ROOF (LTRB ....................................................................... 2

SLAB MOUNT ................................. 2

GROE_D MOL_T ............................... 2

Provide Clearances ................................... 2

Field Fabricate Ductwork .......................... 2

Rig and Place Unit ................................... 2

INSPE( TION ................................... 3

INSTALLATION ................................ 3

Connect Condensate Drain ........................... 5

Install Duct Connections ............................ 6

CONFIGURING [NITS FOR DOVv_FLOW (VERTI-

CAL) DISCHARGE .............................. 7

Install Elect*ical Connection ........................... 9

HIGH-VOLTAGE CONNECTIONS ................. 9

SPE(IAL PRO(EDURES FOR 208-V OPERATION, l0

CONTROL VOLTAGE CONNECTIONS ............ l0

STANDARD CONNE( TION 10

TRANSFORMER PROTECTION i0

PRE-START-UP ! 0

START-UP 13

CHE(K FOR REFRIGERANT LEAKS 13

START UP < OGLING SECTION AND MAKE ADJUST°

MENTS ......................................... 13

CHECKING (OGLING CONTROL OPERATION .... 13

CHECKING AND ADJUSTING REFRIGERANT

CHARGE ..................................... 14

INDOOR AIRFLOW AND AIRFLOW ADJUST°

MENTS ...................................... 14

For 208/230V ................................. ! 4

FOR 460-V GE MOTORS ......................... 14

COOLING SEQ[ EN(E OF OPERATION .......... 16

MAINTENANCE ................................... 18

AIR FILTER ................................. 22

EVAPORATOR BLOWER AND MOTOR ......... 22

CONDENSER (OIL, EVAPOP, ATOR COIL, AND CON-

DENSATE DRAIN PAN ........................ 23

CONDENSER FAN .............................. 23

ELECTRICAL CONTROLS AND WIRING ......... 24

REFRIGERANT CIRCUIT ...................... 24

METERING DEVICE ACUTROL DEVICE ........ 24

LIQUID LINE STRAINER ...................... 24

Troubleshooting ..................................... 24

Start=[ p Checklist ..................................... 24

NOTE TO INSTALLER Before the installation, READ THESE

INSTRU(TIONS CAREF[LLY AND (OMPLETELY 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.

Unhained personnel can perfb_n basic maintenance functions of

cleaning coils and filters. Al! 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 fbr unbrazing operations. Have fire extinguisher

available fk)r all brazing operations. Consult a qualified installer or

service agency fk)r infornmtion or assistance. The qualified in-

staller or agency must use only factory=authorized kits or acces-

sories when modifying this product.

C99001

EVAPORATOR AIRFLOW ...................... 24 Fig. 1--Unit 80GS and 80GX

Manufacturer reserves the right to discontinue, or change at any time, specifications or designs without notice and without incurring obligations.

PC 101 CatNog No. 535-00078 Printed in USA Form 50GS.GX-3SI Pg 1 11-02 Replaces: 50GS,GX-2SI

Summary of content (28 pages)

PAGE 1
NFATUNG 50GS, 50GX EMectric CooMing Units & COOLING SingMe Packaged \isit _ _ ?_ carrier.corn Installation, Start-Up, and Operating 50GS Sizes 018-060, 50GX Sizes 024-060 NOTE: Read installation. This symbol the entire -->indicates instruction a change manual be%re starting since the last issue. TABLE OF CONTENTS SAFETY CONSIDERATIONS 1 Introduction 2 RE( EIVING AND INSTALLATION .......................................... (beck Equipment ......................................................
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SLAB MOUNT Place the unit on a solid, Be%re system, power personal per%truing mm service off power switch, or maintenance to m_iL Turn if applicable. Electrical operations on off accessory heater shock cause can injury. 4 in. thick with extend approximately GROUND 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 ir!imy or death.
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D /ENS!ONS it\ [] ARE IN INCHES _EV_ORa_CO!L 706 [2 78] { [16 OR]406 4 402 O [15 83] 4 CONDENSER 17 7 63) _249 6_550 [9 83] 88 ;/ [3 48] TOP ViEW [21 5 2496 67] [9 83] REAR VIEW IIR39 \ b 2263 [48 28] i.. 1222 [4 8! so 0 20) RHOHT SHDE VmEW FRONT VHEW REQUHREDCLEARANCE TO COMBUSTHBLEMATL. ._ REQUHREDCLEARANCE FOR OPERATION AND SERVHCBNG INCHES [mm] 1400 [355 6] .200 [50.8] 1400 [355 6] .050 [12.7] 3600 [914 4] TOP OF UNIT .................................................
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DIMENSONS r 2 ] RI R {] ARE N NCHES URN 1!6_00_ 4000 C01L 880 [3 481 TOP VIEW COMPREGSORIBLOWER,ELECTRIC IiEAT & ELECTRIC ACCESS REAR VIEW \ \ I}93 9 [47003 _0006 [42 94] POWR ENTRY ? i 202 J I J j [088] OIA HOLE CON [ROL ENIRY 'I 6202 [Z4 42] I [(21J 02GI _ .......... [12 84] % ii 1343] • 4 \\ [44 22i \ VIEW DIIAI[_ OUIL[I 190 [0¸?5) N PT _2_o_o8._ FRONT VIEW REQUIRED CLEARANCE TO COMBUSTIBLE MATL REQUIRED TOP OF UNIT ..................................................
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Roof Curb for Small Cabinet Roof Note A: When unit mounting screw is used, retah3er bracket must also be used. Curb for Large Cabinet Note A: When unit mounting screw is used, retainer bracket must also be used. R/A S/A /\ -'--'--Gasket around_ duct \ \ insulated deck pan Suppolt \ Gasket around outer edge \ \, Long SL pport iBXC} C00076 UNiT S_ZE 50GS018-042 50GS048-060 IN. (MM) D IN.
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Y 4 x 3 C00071 50GS CORNER 018 024 030 036 042 048 060 024 030 036 042 048 060 1 58 60 59 62 76 69 84 76 84 85 71 78 85 2 47 50 48 50 50 45 54 49 60 60 55 56 66 3 55 56 56 58 71 88 106 57 61 64 85 80 108 4 TOTAL 50GX # WEIGHT 94 94 95 98 97 122 145 88 86 90 110 112 140 254 260 258 268 294 324 389 270 291 299 321 326 399 Fig. 4B--50GS and 50GX Unit Corner Weights MAXIMUM ALLOWABLE DIFFERENCE (in.
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DETAIL A SCALE 0250 TIGHTEN STRAPPING SECURELY WITH TENSION BUCKLE RIGGING / CLEVIS AT 4 RIGGING BRACKETS PLACE RIGGING BRACKET ASSEMBLY IN 4 RIGGING HOLES AND INSTALL TIE DOWN STRAP AROUND PERIMETER OF UNIT AND THROUGH SPACE IN BRACKET ASSEMBLY SEE DETAIL A C99066 MAXBMUMWE_GHT sRzE ib A U U in. ram. I B H U UNiT 80GS 018 276 125.2 20 508.0 13 330.2 024 282 127.9 19 482.6 13 330.2 030 280 127.0 19 482.6 14 355.6 036 290 131.5 20 508.0 14 355.
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Table 1--PhysicN UNIT S_ZE NOMINAL 018 CAPACITY 030 03$ 042 048 060 1-1/2 2 2-1/2 3 3-1/2 4 5 (lb.} 254 260 258 268 294 324 389 Scrotl Reciprocating COMPRESSOR Reciprocating REFRIGERANT (R=22) Quantity (tb.) METERING Orifice 50GS (ton) OPERATBNG WEIGHT REFRBGERANT Data--UnR 024 2.6 3.65 4.4 6.4 5.1 7.4 Accurater ID (in.} CONDENSER COIL Rows...Finsiin. Face Area {sq. ft.) CONDENSER FAN Nomina_ Cfm Diameter Motor Np (Rpm) EVAPORATOR COiL Rows...Fins/in.
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1" (25mm) MIN. TRAP OUTLET I 2" (50ram) MIN. C99013 Fig. 7--Condensate Table 3--Minimum Airflow for Safe Operation 018 024 700 800 Metal (A(CA) and Air minimum conditioning 14. Flash, installation systems. Secure weatherproof, building structure building practices.
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sightfi'om,theunit,Refer totheunitratingplate%r fhseicircnit breaker size and mininmm circuit wire sizing. See Tables 4 and 5 fbr electrical The fieldosupplied disconnect unit over the highovoltage low-voltage location. switch maximm_l amps (ampacity) data. box may be mounted inlet hole when the standard entIy points are used. box. Route for on the power leads through hole in bottom of contlol box and make tow-voltage connections (See Fig. 10).
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Table 4--Electrica_ UNIT 5OGS SIZE V-PH-HZ VOLTAGE RANGE Min Max COMPRESSOR RLA LRA OFM IFM FLA FLA Data--50GS ELECTRIC Nominal Kw* -/- 018 024 208/230-1-60 208/230-1-60 208/230-1-60 187 187 187 254 254 254 9 128 144 45 61 73 080 0.8 0.8 1.8 2 2 030 208/230-3-60 208/230-1-60 836 208/230-3-60 460-3-60 208/230-1-60 042 208/230-3-60 187 187 187 414 187 187 254 254 254 508 254 254 8.3 151 109 5.8 186 107 68 81 78 40 105 85 0.8 1.4 1.4 0.8 1.
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Table 5--Electrica_ UNIT 50GX S}ZE VOLTAGE RANGE Data--50GX COMPRESSOR OFM IFM RLA FLA FLA ELECTRIC HEAT POWER SUPPLY V-PH-HZ Max Min Max LRA Nominal Kw* FLA MCA Ckt O24 206/230-1-60 206/230-1-60 187 187 253 253 10.9 13.5 540 730 0.9 2.0 0.8 2.1 O3O 206/230-3-60 206/230-1-60 O36 206/230-3-80 460-3-60 187 187 187 414 253 253 253 506 90 16.7 11.2 5.4 630 970 750 375 0.8 2.1 0.8 3.6 0.8 3.6 0.9 1.9 43.8/50 5.4/72 7.5/10.0 418.1/20.8 26.0/30.
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EXAMPLE: Suppty voltage is 460-3-60. A B C AB = 452 v LEGEND AC = 455 v FLA -- Full Load Amps LRA -- Locked Rotor Amps MCA -- Minimum Circuit Amps MOCP -- Maximum Overcurrent Protection RLA -- Rated Load Amps CKT BKR -- Circuit Breaker Average Voltage = 452 + 464 + 455 3 BC = 464 v _ 1371 3 = 457 NOTES: Determine maximum deviation from average 'voltage. (AB) 457 452=5v (BC) 464 457=7v (AC) 457 455=2v Maximum deviation is 7 v. 1.
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Observe that compressor, condenser delay expires. shuts down after 30 second using an auto-changeover and FAN switches unit operates in heating to %all for heating" cooling mode cooling" (below IMPORTANT: checked tion.
PAGE 15
OFM COMP IFM SCklEMATIC FOR VARITIONS TRANI GRN YEL GRN YEL WII BRN WI27 BRN 24V I ONN ON o (3 G SRN _WIO SNN Tel COOL_ AUTO BRN _ J H RI NEAToFF _T,,, I d klRI & 2 WSO (S KW}__WI30 _ (10 KW) (15 KW)__W7 BRN _ BRN __3BANk 3 BRN AUTO COOL HEAT OFF °}1M N2 Wl @1,2 & 5 O SAN W2 klNI,2,3 ACCESSORY ELECTRIC SEE NOTE#2 COMMON _127 24V SPLICE & 4 (20 KW) __4 BAN HEAT_'{ BNN BOX LEGEND UNIT OUTDOOR COMPONENT ARRANGEMENT FIELD SPLICE C TERMINAL (MARKED) CAP T
PAGE 16
018 C 048 ONLY 0LN CAP2 YEL ) YEL OFM _ _BNN 060 ONLY LI WI57 YEL BLK COMP L2_ L3 RED_ YEL IFM WI55 NEAT BLK SCNEMATIC YEL WI56 TRANI PRIMARY 460V @.W25 GRN _W26 YEL GRN I YEL / GRN YEL GF/N YEL WII BRN i BRN I WI21 iN ON ORN RED G WIIBRN Wl6 GRN WIO BFIN AUTO Slg WlI5 TCI YEL BRN ACCESSORY ELECTRIC Z_- AUTO W72 WNT ,EA:f/I 0.
PAGE 17
MAXIMUM WIRE SIZE 2 AWG USED WITH ACCESSORY ELECTHEAT OPTION ONLY USED WITbl blEATER OPTIONS 5,10 & 15 KW MAXIMUM WIRE SIZE 2 AWG USED WITH ACCESSORY ELECTHEAT OPTION ONLY.
PAGE 18
OUTDOOR _F 115 105 41 48 95 35 85 29 75 24 _p, ,_ 30 I 40 50 80 70 SUCTION LINE TEMPERATURE ("F) I I I I 4 10 18 21 SUCTION LINE TEMPERATURE ("C) 8O 90 30 I 22 I 32 I SOGS01a °37 30 I 40 SO 5UCT]ON LINE I I 4 I0 SUCTION LINE Fig.
PAGE 19
Tab{e 8--Wet Coil Air Delivery (Deduct 10 percent for 208v)* Horizontal and Downflow Discharge Unit 50GS018=060 230 AND 4G0 VOLT Unit Motor Speed Low 018 Med High Low 024 Med High Low 030 Med High Low 036 Med High Low 042 Med High Low 048 Med High Low 060 Med High External Static Pressure (in. wg) 0.4 0.5 0.6 0.0 O.1 0.2 0.8 Watts 227 212 196 177 165 153 0.7 0.
PAGE 20
Table9--Wet Coil Air Delivery (Deduct 10 percent for 208v)* Horizontal and Downflow Discharge Unit 50GX024-060 230 AND 460 VOLT Motor Unit 0.0 0.1 0.2 0.3 ExtematStatic 0.
PAGE 21
TDOOR TEWP FO 15 46 35 41 95 35 75 35 29 24 35 55 18 13 45 7 iIII 30 40 50 SUOT]ON LINE I I 4 10 SUCTION L]NE I 80 70 30 TEMPERATURE (_F} I I 18 21 rEMPERATURE ("C) 40 BO SUCTION LINE I I 4 I0 SUCTION LINE I BO 70 rEMPERATURE (°F) I I 18 21 TEMPERATURE (_C} 20--Cooiinc 40 50 SUCTION LINE I I 4 10 suorIoN LINE I Fig. 21--Cooling 80 70 80 TEHPERArURE (_F) I I /5 2/ TEHPERATURE OO) 90 I 27 30 I 32 I 4.
PAGE 22
(030) 60HZ CHARGING 3O 40 80 BO 8UCT]ON LINE I I 4 10 SUCTION LINE I CHART (036) 60HZ CHARGING 70 TEMPERATURE (_F) I I 18 21 TEMPERATURE ('C} 80 9O 30 I 27 I 32 I 40 SO CHART BO SUCTION LINE I I 4 10 SUCTION L]NE 70 TEMPERATURE (_FI I I 18 21 TEMPERATURE ("C) SOGX0a0 °46 (042) 60HZ CHARGING 30 40 8UCT]ON I 50 60 LINE TEMPERATURE I 10 I 16 I 4 SUCTION LINE (048) 60HZ CHARGING 80 90 30 I 27 I 32 I (
PAGE 23
(060) 60HZ CHARGING 30 I 40 50 SUCTION LINE I I 4 10 SUCTION LINE 60 CHART 70 TEHPERATURE (°F) I I 18 21 TEMPERATURE OC} 80 90 I 27 I 32 C99049 Fig. 27--Cooling ChargBng Chart, 50GX060 Units attachment. Be careful not to bend the fins If coated with oil or grease, clean the coils with a mild detergent-and=water sotudon. Rinse coils with clear water, using a garden hose.
PAGE 24
ELECTRICAL Inspect (ONTROLS and check AND WIRING the electrical s_l_'e lo t_t's_ q[f 1,sTeelectrical controls po_e_' and wiring annually. Be to t,s_e_mit and i_staT1 locl_o_t tct,g. Remove access wiring. Check screw to locate all electrical connections. noticed, wire panel inspecting access panel. heating cycle operation.
PAGE 25
Table 1O--Troubleshooting--Cooling SYMPTOM CAUSE REMEDY Power Failure Call power company Fuse blown or circuit breaker tripped Defective thermostat, contractor, control relay Compressor and condenser fan willnot start= insufficient transformer, Replace fuse or reset circuit breaker or Incorrect or faulty wiring Thermostat Compressor Compressor will not start but condenser rune.
PAGE 26
START-UP (REMOVE L PRELIMRNARY CHECKLIST AND STORE IN JOB FILE) INFORMATION Model No ............................................................................................................................................................. Serial No .............................................................................................................................................................. Date .......................................................................................
PAGE 27
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FormNo.50GS,GX-3SI Cancels: 50GS,GX-2SI Page28 11/02 Copyright 2002Carrier Corp. Catalog No.