Download Carrier 50JS Specifications
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HEA33NG Visit 50JS, 50JX Heat Pump Units Single-Packaged & COOLING www.c,_ier.com Installation, Start-Up, and Service Instructions NOTE: Read installation. the entire instruction before starting the OF CONTENTS CONSIDERATIONS INTRODUCTION RECEIVING ..................................................... t .......................................................................... AND INSTALLATION 2 .......................................... 2 Check Equipment ...................................................................... IDENTIFY UNIT ................................................................ INSPECT SHIPMENT 2 2 ........................................................ 2 Provide Unit Support ................................................................ ROOF CURB ....................................................................... SLAB MOUNT GROUND Provide 2 2 ................................................................... MOUNT Clearances 2 2 2 INSTALLATION and Install ................................................................ Ductwork CONVERTING (VERTICAL) DISCHARGE DISCHARGE ROUTING CONNECTIONS POWER CONNECTING ROUTING SPECIAL GROUND INTO LEAD CONTROL POWER PROCEDURES FOR PRE-START-UP Check LEADS UNITS 10 10 TO GROUND AND CHARGE NO CHARGE LOW CHARGE COOLING INDOOR MENTS AIRFLOW 17 17 CHARTS C99001 18 .................. Fig. 1--Model AIRFLOW SAFETY CONSIDERATIONS 19 ADJUST19 20 21 Indoor 21 and motor ........................................................ Installation hazardous trained and qualified air-conditioning Untrained Outdoor 23 by trained 23 equipment, Reliigerant circuit ................................................................... Indoor airflow ......................................................................... 24 25 attached Metering 25 quenching 25 available Liquid device and wiring ................................................ ...................................................................... line strainers Manufacturer reserves PC 101 ................................................................ the right to discontinue, CatalOg No. 535-00072 cleaning Printed in U.S.A. equipment and electrical personnel should service can perform personnel. observe precautions to the unit, and other all safety codes. for all brazing Form 50JS,JX-4SI repair, ba.qic maintenance When Only or service safety working operations. of be performed on air-conditioning precautions glasses functions should in the literature, Wear safety cloth for unbrazing or designs can be components. install, coils and filters. All other operations Follow or change at any time, specifications of air-conditioning pressure equipment. personnel 22 fan ............................................................................. and servicing due to system OUTDOOR COIL, INDOOR COIL, AND CONDENSATE DRAIN PAN ............................................... controls 50JS/50JX 19 Air Filter .................................................................................. Electrical INSTRUCTIONS CAREFULLY AND COMPLETELY before installing this unit. Also. make sure the Owner's Manual and Service Instructions are left with the unit after installation. 18 ......................................................................... blower READ THESE 18 .............................................................................. MAINTENANCE -- REFRIGERANT ............................................. AND 25 CHECKLIST NOTE TO INSTALLER 17 .............................................. CHARGING ............................................................ START-UP 17 .................................................................... TO USE COOLING 25 17 ................................................. ADJUSTING CHARGE ............................................................... TROUBLESHOOTING WIRES (24-V) ............ 13 208-V OPERATION ...15 ........................................................................... REFRIGERANT 25 LUG. 10 Start-Up Adjustments .............................................................. CHECKING COOLING AND HEATING OPERATION ................................................................. Thermostat 6 7 UNIT ...................... Leaks .................................................. CHECKING Defrost TO ................................ .......................................................................... CONTROL 25 25 UNITS ......... 5 ................................................................................... for Refrigerant 25 Loss of charge switch ............................................................. Check defrost thermostat ........................................................ 4 Provide for Condensate Disposal ............................................. Install Electrical Connections ................................................... HIGH-VOLTAGE 25 relay ..................................................................... 2 ..................................................... HORIZONTAL DOWNFLOW Valves ................................................................... 2 Rig and Place Unit .................................................................... INSPECTION ...................................................................... START-UP Flow 2 ............................................................ .................................................................... Select High Time-delay TABLE SAFETY manual tags, and labels that may apply. and work gloves. Have Use fire extinguisher operations. without notice and without incurring Pg 1 Replaces: obligations. 50JS,JX-2SI & 3SI Improper nonce, installation, or use can cause other occurrences, or damage could property. service agency installer or agency alteration, explosion, which your accessories adjustment, fire. electric cause serious Consult for information must service, mainteshock, injury a qualified or assistance. when modifying or seal. and poor Curb or kits or safety When see this symbol you manuals, information. the signal TION, and NOTE. which will indicates death. This is the safety-alert on the product be alert to the potential Understand words in severe that Caution is used the personal could to identify most installation, unsafe reliability, practices, installation must local plumbing codes. Warning be level which to within 1/4 Code). 2 in. beyond the unit in. (See 61. This Fig. The unit may be installed would ground damage. result in if local prepared must correspond to must be sufficient codes with gravel Refer codes to provincial or w,'t_te water codes and other applicable on all 4 sides of the when required minimum ventilation Place service the unit directly on outdoor air through and corner or under an overhead local under a partial overhang the unit top. are shown in Figs. 2 and air must be provided. the outdoor carpeting discharge configurations for rooftop RECEIVING Step 1---Check IDENTIFY configuration slab. Units can be converted AND for installation to downflow should levels. identification Step applications. INSTALLATION Equipment obstruction. The minimum (such as a normal The maximum number and serial number Check are stamped this information against on the unit shipping pa- pers. Inspect for shipping damage by claim papers facturer is not responsible all nearest Carrier items directly against prevent loss or damage, installation. ROOF or is torn loose horizontal list. office all parts Immediately Manu notify is missing. in original packages units 4--Rig and Place Unit and handling due to the installation trained, qualified should handle When working of this equipment can be hazardous location crane (roofs, operators elevated and ground for many structures, support staff and install this equipment. with this equipment, on tags, stickers, all applicable precautions safety observe and labels that might codes. precautions attached in the to the equipment, apply. Wear safety shoes and work intervals, all rigging the To should until be paid to excessive wear at hoist hooking brackets evidence attention points and load support arexg. Brackets or straps showing any kind of wear in these arezts must not be used and should be discarded. INSTALLATION 1. Remove Install accessory, roof curb in accordance with curb (See Fig. 5). Install insulatiom be attached Slab-mounted and straps should be visually inspected for any damage, of wear, structural deformation, or cracks. Particular Unit Support must materials. Prior to initial use, and at monthly CURB fln_thing. Ductwork of a overhangs, INSPECTION in transit. if any item is 36 extension gloves. removal. company. incurred combustible reasons etc.) Follow pallet. its anchorage, before to transportation shipping leave from inspectors for any damage Air Conditioning Step 2--Provide unit is still on shipping transportation Forward Check while to be damaged it examined other and any other safety SHIPMENT If unit appears have or literature, INSPECT clearance house overhang) be at least 4 in. above the highest expected water and runoff Do not use unit if it has been under water. Rigging Only plate. it Be sure that the fan discharge does not coil. Do not locate the unit in either a on /vertical) UNIT The unit model The coil and discharges Do not place the unit where water, ice, or snow from an overhang or roof will damage or flood the unit. Do not install the unit on INTRODUCTION in a horizontal-discharge ground IMPORTANT: Do not restrict outdoor airflow. An air restriction at either the outdoor-air inlet or the fan discharge may be detrimental to compressor life. performing service or maintenance operations on turn off main power to unit. Turn off accessory heater switch if applicable. Electrical shock could cause injury or death. a ground-level on the level discharge. clearances and and in. above on a slab or placed for condensate through the top fan grille. recirculate to the outdoor The 50JS and 50JX heat pumps are fully self-contained and designed for outdoor installation (See Fig. 1). Standard units are shipped by Clearances 3. Adequate fan draws either permit. The required outdoor the casing to the slab except partial overhang must not exceed 48 in. For extended provide a minimum clearance of 48 in. Before system, power severe is MOUNT Step 3---Provide with local building Electrical approximately GROUND injury, or or operation. confortu (National with the for unit drain to function properly. Refer to accessory installation instructions for additional information as unit. Do not secure local codes. hazards, and property which will 2. The electrical supply provided by the utility to handle load imposed by this unit. with NEC serious personal 1. The power supply (volts, phase, and hertz) that specified on unit rating plate. 3. This supplied also can result in air leaks Place the unit on a solid, level concrete pad that is a minimum of 4 in. thick with 2 in. above grade ISee Fig. 71. The slab should or CAU or death. serious result in minor personal injury or product NOTE is used to highlight suggestions enhanced material gasketing MOUNT extend WARNING, injury cause symbol/_. injury. DANGER, identifies result applied required. or in instructions for personal -- Danger a condition of the unit to the roof curb is critical gasketing this product. SLAB Recognize Install unit performance. should necessary roof curb The qualified use only factory-authorized The gasketing for a watertight roof curb. Improperly or death installer IMPORTANT: with instructions shipped cant strips, roofing, and unit from shipping carton. Leave top shipping skid on the unit as a spreader bar to prevent the rigging straps from damaging the unit. If the wood skid is not available, use a to curb. spreader 2 bar of sufficient length to protect unit from damage. /-. [VAP0_AT_ "l REOt,qRE3 _/JE,_*_CES TO _TIm.E F_OUR_D B[TW[EN TOP VIEW MAIl_ I_OUIRED lop ,D_ UNiT D_CT SI_E OF UNII _1_[ Op_TI DUCT_ 80flO_ _ UNIT _LECI_IC _E_I P_EL NEC C01t kt4LLIMETf_S 355 $ il4 5O 8 [? 355 _ 114 12 f [O 914 _ [36 [IN] 00] 06] 00] 50] _0] HILtlM[I[RS _ _ [4l (_) 00) CLE/g_k_£ FOff O_A]I_N AM) S_5_'K:IN_ MILL;_TIRS [IN) 91_ 0 1)_ 00) _14 0 [35 00) E_p C_(L AC_[_S SID[ POW[_ [NIR_ S_[ _[_£[PT fOR N[C _[QU_[_[_TS) UNIF TOp _l_f _PPOSk([ 9UCT5 DUCT P_N[L 9r4 0 [)6 00) 9_ 0 13_ 00( 3O4 _ IIZ 00]_ _ _!l_ POW(_ ENT_1 51D[ UNll A_D BLO_ O_ ,_NCR_I[ WALtS AND OIH[R GROUNDID BU_FAC[S PO_[I [_T_Y BID[ ,MIN_MU_ lOB_ _ t42 OOl DIST_NC[S DIMENSIONS IF _N_T 15 PL_ED _T_lEM TH[H Sy_T_ IN [ ] ARE L[55 l_ _04 _ [1_ _0_ _O_ WAtL Pf_fOR_ANCE _YBE CO_RO_I_ED IN INCHES \ --_)i -IO 2_1 LEFT SIDE VIEW ,_ o _o_s]., oPr RIGHT SIDE VIEW FRONT VIEW x zz o Io _;I C00137 UNIT UNIT WEIGHT 50JS024 5OJSO30 50JS036 50JS042 kg 208/230-1-60 283 128.4 37.02 (940.3) 19.5 (495.3) 13.7 (348.0) 15.0 (381.0) 208/230-1-60 289 131.1 39.02 (991.1) 19.7 (500.4) 13.9 (353.1) 15.0 (381.0) 287 130.2 39.02 (991.1) 19.5 (495.3) 13.7 (348.0) 15.0 (381.0) CHARACTERISTICS 208/230-1-60, 208/230-3-60 Z 208/230-3-60, 460-3-60 291 132.0 37.02 (940.3) 19.5 (495.3) 13.7 (348.0) 13.0 (330.2) 208/230-1-60, 208/230-3-60, 460-3-60 323 146.5 37.02 (940.3) 19.7 (500.4) 14.0 (355.6) 13.0 (330.2) 299 135.6 41.02 (1041.9) 19.0 (482.6) 13.7 (348.0) 16.0 (406.4) 320 145.2 37.02 (940.3) 19.7 (500.4) 14.0 (355.6) 17.6 (447.0) 328 148.8 37.02 (940.3) 19.7 (500.4) 14.0 (355.6) 16.5 (419.1) 208/230-1-60 5OJXO30 208/230-1-60, 208/230-1-60, 208/230-3-60 208/230-3-60, 460-3-60 Fig. 2--50JS018-042/50JX024-036 2. Position the lifting bracket _-¢sembly around unit. Be,_ure the strap does not twist. 3. Place each of the 4 metal in the composite lever lifting brackets the b_e into the rigging of the holds strapping of tension b. Feed strapping c. Pull strapping Unit Dimensions d. Snap lever strapping, outward. 5. Tighten pan. 4. Thread lifting bracket unit as follows: a. Open X 208/230-1-60, 50JX024 50JX036 Ib UNIT HEIGHT IN. (MM) "A" ELECTRICAL 50JS018 CENTER OF GRAVITY IN. (MM) Y through through around bottom perimeter of tension tension (ratchet as shown buckle unit taut. in Fig. 8. 7. Attach lifting the 2 safety brackets. brackets until clevis bracket (See straps buckle. To release latch, lift lever, and pull webbing buckle field-supplied 4 rigging safety in the rigging hole in the lifting typel. buckle the tension must be secure 6. Attach buckle down to lock strap in tension squeeze it is taut. Lifting brackets holds. or hook of sufficient strength to (See Fig. 9). directly DO NOT Fig. 9). to the clevis or hook attach the safety straps at the to the illti111 illlllll ' WI IIIII 402 0 _NtNG oFo o .. c,...... t tt 14 6_ i i 3_I 3 {i) _71 [43 BSI t RE_ ¢:I.,EARAiV_$TO CCI,_US_ TOP VIEW ' It) 8)) REAR VIEW MAltMILLIMETERS tIN] 355 6 [14 00] 50 8 (20Q) 355 6 [14 OQ] IZ 7 {0 50] _14 _ [36 00) TOp 1_ U_lf DUCt 510£ OF UN)I SIDE OPPOSIT[ OUCI_ BOfTO_ O( UNll EL[CTRIC HEAT PANEL W)LLIMETERS tIN] 1066 8 [4Z O0] 914 0 [36 OO] BETWEEN UNITS POWER [NIRY SIDE g_IT AND UNGROUNDED SURFACES PO_R [NTRf SlOi gNll AND BLOCK OR CONCp[I[ WALLS AND O(HER GROUNDED SURFACES POWER E_TRY SIDE MILtIM[IERS (INI 91_ O [SG 00) 91_ _ [36 DOJ EV_P CO(L ACC{SS SIDE PO_[R {NT_T SIOE [{XCEPF FO_ N[£ REOUIR_MENIS) UNIT lop S_OE OPPOSITE DUCTS 9UCf PANEL IMINIMUW 1066 8 [4_ 00) OISIAHCESiF DIWEHSIONS UNIT IS SYSTEWIHEN IN {] ARt 914 _ [36 0_) 914 Q [)6 0_) )04 8 [(_ 60)1 PLACED LESS [HAN 304 B [1_ 00] FROW (ALL STSTE_ PERFORMA#CE WATBE COmPrOMISeD kN (NCHES t I(Ii IIIIII I lit! IIIIII 188] plA _OLE _ONI_0L [WIRy ,% "= i I [o _o) LEFT SIDE RIGHT SIDE VIEW VIEW 000136 UNIT ELECTRICAL UNIT HEIGHT IN. (MM) UNIT WEIGHT CHARACTERISTICS X 50JS048 208/230-1-60, 208/230-3-60, 460-3-60 Ib 353 kg 160.1 38,98 (990.2) 5OJSO6O 208/230-1-60, 208/230-3-60, 460-3-60 418 189.6 38.98 (990.2) 5OJX042 208/230-1-60, 208/230-3-60, 460-3-60 350 158.8 50JX048 208/230-1-60, 208/230-3-60, 460-3-60 315 5OJX060 208/230-1-60, 208/230-3-60, 460-3-60 428 lifting point directly over the unit's 9. Lift unit. When unit is directly 2 safety Step straps. _Select The design accordance non-residence Lower 19.9 (505.5) 17.0 (431.8) 19.9 (505.5) 15.7 (398,8) 17.0 (431.8) 40.98 (1040.9) 19.9 (505.5) 15.7 (398,8) 16.6 (421.6) 170.1 40.98 (1040.9) 19.9 (505.5) 15.7 (398.8) 18.0 (487,2) 194.1 42.98 (1091.7) 19.9 (505.5) 15.7 (398.8) 17.6 (447,0) of gravity. over the roof curb, remove the equipment and Install center 90A or residence ordinances. type, according the NFPA and ventilating 90B and/or systems, local codes to ASHRAE tion, and Air Conditioning The unit has duct flanges the side of the unit. Ouctwork type air conditioning Unit Dimensions Select and size ductwork, onto the roof curb. and installation of the duct system must be with the standards of the NFPA for installation Z 15.7 (398,8) Fig. 3---50JS048-060/50JX042-060 8. Position CENTER OF GRAVITY IN. (MM) Y in of When NFPA and 4 designing supply-air (American registers, Society Engineers) and return of Heating, recommendations. on the supply- and return-air and installing air _milles Refrigera- ductwork, consider openings on the following: 1 2 Y Z 3 X C00071 CORNER Unit o 1=3 • -o o :_ WEIGHTS (SMALL 18 24 "o 0 36 42 CORNER WEIGHTS (LARGE CABINET) Total Weight 283 289 287 291 323 03 Comer Weight 1 67 56 66 54 67 55 83 55 Total Weight Comer Weight 1 353 76 418 90 --- i 105 62 106 63 107 78 Comer Weight nit 2 Comer Weight 4 Weight 3 48 49 132 96 60 58 56 t 14 --- Comer Weight 2 65 53 Comer Weight 3 103 61 104 62 Corner Weight 4 CORNER o CABINET) 30 WEIGHTS (Small Unit 24 _O Cabinetl _{_ Total Weiaht 299 320 328 CORNER WEIGHTS tLaroe Cahinel) m -- I °m Unit Total Weinht 42 350 48 375 60 428 Comer Weiaht 1 75 81 92 3; _ Comer Weight 3 Comer Weight 2 Comer Weight 4 95 49 131 102 52 t 40 116 60 160 -- Comer Weiaht 1 63 63 64 -- -- Comer Weight 2 62 74 76 -- -- Comer Weight 3 56 56 58 -- -- Comer Weight 4 118 127 130 -- -- x l Fig. 4---Corner Weights (in Pounds) 4. Seal, insulate, insulate For vertical supply into ductwork degree space. a grille units, tools serious turn in the return conditioned then and return and cause injury ductwork If a 90 degree of sufficient or parts could or death. between elbow strength the unit cannot and Install density drop through conditioned a 90 Conditioning and the be installed, should mum be 2. Avoid abrupt change in Tables 1 and 2. duct increases and size in duct size adversely IMPORTANT: Use flexible unit to prevent tr,'msmission ensure weather tight and installed, usd fireproof affects connectors of vibration. airtight seal. canvas (or similar reductions. DOWNFLOW heat resistant Before system, duct connector from electric heater 3. Size ductwork (or sheet metal sleeve) material) must extend 1. Open starting air quantity (cfm). and air Flash, weatherproof, and in wall or roof according DISCHARGE UNITS to practices. HORIZONTAL (VERTICAL) DISCHARGE TO UNITS performing service or maintenance operations turn off main power to unit and install lockout all electrical any service disconnects and install on tag. Elec- lockout tag before return and supply work. 2. Remove side duct covers knock outs. 24-in. element. for cooling heating Turn off accessory heater power switch if applicable. trical shock could cause serious injury or death. to is connector between ductwork and unit discharge connection. If flexible duct is used, insert a sheet metal sleeve inside duct. Heat resistant residential ISMACNA) {ACCA/mini- Tf ° '_ • r!_l k, I-.I,1,11d_1 and Use suitable gaskets When electric heat Association Association structure. duct openings Abrupt ductwork for Seal, passing latest Sheet Metal and Air Contractors standards construction CONVERTING air performance. between Follow ductwork. all ductwork systems. vibration-isolate 1. All units should have field-supplied filters or accessory filter rack installed in the return-air side of the unit. Recommended are shown installation all external barrier National 5. Secure all ducts to building good for filters spaces. Contractors conditioning duct. sizes with a vapor and Air Conditioning installed to prevent objects from falling into the conditioned space. Units with electric heaters require 90 degree elbow in supply and weatherproof and cover to access bottom NOTE: These panels are held in place with tabs similar to an electrical knockout. The minimum air quantity for proper electric heater operation is listed in Tables 3 and 4. Heater limit switches may trip at air quantities below those recommended. 3. Use a screwdriver and hammer to remove the panels in the bottom of the composite unit base. 5 VAC unrl base "_ _ _(NOTE A) supplied _ _ Ir_ulaUon Roofir_ material field suPPlied m (field supplied) eu_i work field su_l_d _Cant Roof Curb for Small strip Cabinet field supplied Roof Curb for Large Cabinet Note A: When unit mounting screw is used, retainer bracket must also be used. Note A: When unitmounting screwis used, retainerbracketmustalsobe used. R/A S/A Insulated Gasket around deck pan outer edge C00076 UNIT SIZE 50JS018-042 50JS048-060 IN. (MM) B IN. (MM) C IN. (MM) D IN. (MM) CPRFCURB006A00 8 (203) 11 (279) 161/2 (419) 28-3/4 (730) CPRFCURS007A00 14 (386) 11 (279) 161/2 (419) 28-3/4 (730) CPRFCURB008A00 8 (203) 16 3/16 (411) 17 3/8 (441) 40-1/4 (1022) CPRFCURB009A00 14 (356) 16 3/16 (411) 17 3/8 (441) 40-1/4 (1022) ODS CATALOG 50JX024-036 50JX042-060 A NUMBER NOTES: 1. 2. 3. 4. 5. 6. 7. 8. 9. Roof curb must be set up for unit being installed. Seal strip must be applied, as requiRd, to unit being installed. Dimensions in ( ) are in millimeters. Roof curb is made of 16-gage steel. Table lists only the dimensions, per part number, that have changed. Attach ductwork to curb (flanges of duct rest on curb). Insulated panels: t-in. thick fiberglass 1 Ib density. Dimensions are in inches. When unit mounting screw is used (see Note A, a retainer bracket must be used as well• This bracket must also be used when required by code for hurricane or seismic conditions. This bracket is available through MicrornetL Fig. 5_Roof 4. Ensure the side duct covers horizontal air openings. NOTE: change Avoid abrupt in duct size duct size adversely are in place to block off the Curb Dimensions The units fitting increases affects and reductions. Abrupt permitted) tions. Install Step C0---Provide NOTE: with Ensure local codes, for Condensate that condensate-water restrictions, Disposal disposal and practices. methods comply of condensate on the compressor water can be drained (where air pedormance. dispose that exits directly a field-supplied a 3/4 in. NPT end of the unit. onto the roof in rooftop or onto a gravel connection to ensure the trap is at least through apron condensate in ground female Condensate installations level installa- trap at end of condensate proper drainage. Make sure that the outlet of 1 in. lower than the drain-pan condensate MAXIMUM ALLOWABLE DIFFERENCE (in.) B A-B B-C A-C 1/4 1/4 1/4 C99065 Fig. 6_Unit Leveling Tolerances 2 w ± m t EVA,RCOIL COND.COIL C99096 Fig. 7--Slab Mounting Detail FEED C99067 Fig. 8---Threading connection to prevent the pan from with water. When using a gravel from the unit. If the from installation apron, draining to ensure proper as an accessory is at least connection trough 1 in. lower to prevent using than the pan from a minimum of the trap make sure it slopes Belt Step 7--Install Electrical Connections away water away The unit cabinet electrical Condensate Make sure that the outlet of the injury if an electrical consist of an electrical the unit in the control trap is available drain-pan overflowing. field-supplied condensate Connect 3/4 in. a drain PVC or ground downward adhere Be sure to check the drain beginning of the cooling trough season 10 ft. of horizontal for leaks. start-up. Prime run. the trap at the an uninterrupted, the unbroken possibility of personal fault should occur. This _ound may wire connected to the unit ground lug compartment, tion Association 1 in. every have to minimize or conduit approved for electrical ground when installed in accordance with NEC, ANSI/NFPA American National Standards Institute/National Fire Protec field-supplied 3/4 -in. copper pipe at outlet end of the 2 in. trap (See Fig. 12). Do not undersize the tube. Pitch the drain trough at a slope of at least must 2-in. trap at the condensate drainage. or is field-supplied. Prime the condensate the unit. install a field-supplied connection trap requires overflowing. (latest edition) (in Canada, trical Code CSA C22.1 ) and local electrical to this warning could result in serious Canadian codes. injury Elec- Failure to or death. C00139 Fig. 10_Typical Installation Table 1--Physical UNIT SIZE NOMINAL CAPACITY (ton) OPERATING WEIGHT (lb.) COMPRESSOR QUANTITY Data 50JS018 50JS024 50JS030 50JS036 50JS042 50JS048 1-1/2 2 2-1/2 3 3-1/2 4 5 283 289 287 291 323 353 418 1 TYPE RECIPROCATING COMPRESSOR REFRIGERANT REFRIGERANT METERING 50JS060 SCROLL COMPRESSOR I R-22 DEVICE AccuRate_ 6.5 5.3 5.6 7.6 8.0 7.85 9.3 ORIFICE ID (in.) 0.053 0.061 0.068 0.078 0.078 0.088 0,093 ORIFICE OD (in.) OUTDOOR COIL Rows,.. Fins/in, Face Area (sq, ft.) OUTDOOR FAN 0.040 0.035 (2) 0.042 (2) 0.046 (2) 0.052 (2) 0.057 (2) 0.061 (2) 1...17 10.2 1...17 12.0 1...17 12,0 2...17 10.3 2...17 10.3 2...17 11.6 2...17 11.6 2400 22 1/8 (825) 2400 22 1/8 (825) 2400 22 1_ (825) 2800 22 1_ (1100) 2400 22 1/8 (625) 3300 22 1/4 (1100) 3300 22 1_ (1100) 2...15 3.7 2...15 3.7 3...15 3.7 3..,15 3.7 4..,15 3.7 3...15 4.7 4...15 4.7 700 IOXlO 800 10X10 1000 10X10 1200 11X10 1250 11X16 3/4 1600 11X10 3/4 2000 11X10 20X20X1 20X20X1 20X2OX1 20X24X1 24X30X1 24X30X1 24X30X1 Refrigerant (R-22) Quantity (Ib,) Nominal Airflow (CFM) Diameter Motor HP (RPM) INDOOR COIL Rowe.., Fins/in. Face Area (sq. ft.) INDOOR BLOWER Nominal Airflow (CFM) Size (in,) Motor (HP) RETURN-AIR FILTERS (in.) throwaway 8 Table 2--Physical UNIT SIZE NOMINAL CAPACITY (ton) OPERATING WEIGHT (lb.) COMPRESSOR QUANTITY Data 50JX024 50JX030 50JX036 50JX042 2 2-1/2 3 3-1/2 299 320 328 350 5 428 1 TYPE SCROLL COMPRESSOR REFRIGERANT REFRIGERANT 50JX060 50JX048 375 R-22 METERING DEVICE AccuRate_ 5.5 6.4 7.0 10.8 10.1 12.3 ORIFICE ID (in,) 0.065 0.073 0.076 0.080 0.088 0.093 ORIFICE OD (in.) OUTDOOR COIL Rows... Fins/in. Face Area (sq. ft.) OUTDOOR FAN Nominal Airflow (CFM) Diameter Motor HP (RPM) INDOOR COIL Rows... Fins/in. 0.037 (2) 0.043 (2) 0.040 (2) 0.052 (2) 0.057 (2) 0,063 (2) 1...17 13.7 2...17 10.3 2-.17 10.3 2.,,17 13.7 2...17 13.7 2._17 15.7 2350 22 1/8 (825) 2350 22 1/8 (825) 2800 22 1/4 (1100) 2800 22 1/8 (825) 3300 22 1/4(1100) 3300 22 1/4(1100) 3,,.15 3,7 3.,.15 3.7 4...15 3.7 4-.15 4.7 4...15 4.7 4.,.15 5.7 800 10X10 1/4 1000 10X10 1/4 1200 10X10 1/2 1400 11X10 1/2 1450 11X10 1/2 1750 11X10 1 20X20X1 20X20X1 20X24X1 24X30X1 24X30X1 Refrigerant (R-22) Quantity (lb.) Face Area (sq. ft.) INDOOR BLOWER Nominal Airflow (CFM) Size (in.) Motor (HP) RETURN-AIR FILTERS (in.) throwaway NOTE: Air filter pressure drop for non-standard 24X30Xl filters must not exceed 0.08 in. wg. Table 3_Minimum Airflow for Reliable Electric Heater Operation (Cfm) SIZE 50JS018 50JS024 50JS030 50JS036 50JS042 50JS048 50JS060 AIR FLOW (CFM) 650 800 1000" 1200 1400 1600 2000 • The 030 size models must be run on medium or highspeed when usedin conjunctionwith 15 kwelectdc heat accessory Table 4_Minimum SIZE AIRFLOW (CFM) Airflow for Reliable Electric Heater Operation (Cfm) 50JX024 50JXO30 50JX036 50JX042 50JX048 50JXO6O 800 1000" 1200 1400 1600 2000 * The 030 size modelsmust be run on medium or high speed when usedin conjunction with 15 kw electdc heat accessory 9 1" (25ram) MIN. TRAP (36" 54"/ OUTLET ] + 2" (50ram) MIN. C99013 Fig. 12_ondensate OETAIL A SCALF 0250 Failure to follow these precautions the unit being installed: 1. Make all electrical connections ANSI/NFPA Canadian L SAFETY CLEVIS STRAPS TO AT 4 RIGGING codes. BRACKETS 2. PLACE RIGGING BRACKET ASSEMBLY {N 4 RIGGING HOLES AND iNSTALL TIE DOWN STRAP AROUND PERIMETER OF UNIT AN{] THROUGH SPACE IN BRACKET ASSEMBLY SEE DETAIL A UNIT Size Use only voltage and Code copper local in. 19.5 ram. 495.3 in. mm. local 50JS018 kg 138.4 16.75 425.5 and/or 50JS024 311 141.1 18.5 469.9 16.75 425,5 50JS03O 309 140.2 19.5 495.3 1730 444.5 50JS036 313 142.0 19.5 495.3 17.75 450.9 50JS042 345 156.4 19.5 495.3 17.75 450.9 50JSO48 375 170.1 20.5 520.7 20.62 523.8 5OJS060 440 199.6 19,5 4953 19.75 501.7 50JX024 321 145.6 19.0 482.6 18.25 463.6 50JX030 342 155.2 20.0 508 19.25 489 50JX036 350 158.8 20.0 508 19.0 482.6 50JX042 372 168.8 21.0 533.4 20.5 520.7 50JX048 377 171.0 20.0 508 21.25 539.8 50JX060 450 204.2 21.0 533.4 20.0 508.0 Part range power phase 4. Insulate within 1 and applicable local for connections switch between and unit. power to unit is within on unit rating are balanced plate. operating On 3-phase within 2 percent. for correction DO Consult of improper voltage imbalance. low-voltage conduit conduit NEC codes all electrical connecCSA standard C22.1 disconnect WIRE. indicated company with electrical to diagram. conductor units, ensure phases Ib 305 Fig, 9_Suggested Electrical Refer to unit wiring 3. Be sure that high-voltage B A in accordance edition) field supplied electrical NOT USE ALUMINUM C99075 MAXIMUM WEIGHT INCLUDES SHIPPING SKID could result in damage governing such wiring. In Canada, tions must be in accordance with TIGHTEN STRAPPING SECURELY WITH TENS}ON BUCKLE INSTALL RIGGING (latest Trap wires as high-voltage 5. Do not damage voltage control contained wires are in same wires. internal any panel to mount HIGH-VOLTAGE for highest when low-voltage components electrical when drilling hardware, conduiL through etc. CONNECTIONS The unit must have a separate electrical service with a fieldsupplied, waterproof disconnect switch mounted at, or within sight from the unit. Refer to the unit rating plate, NEC and local codes for maximum fuse/circuit breaker size and minimum circuit amps (ampacity) for wire sizing (See Tables 5 and 6 for electrical data). Rigging The field-supplied disconnect may be mounted on the unit over the high-voltage inlet hole (See Fig. 2 and 3). If the unit has an electric heater, a second disconnect may be required. Consult the Installation, Start-Up, and Service Instructions provided with the accessory for electrical service connections. Operation of unit on improper line voltage constitutes abuse and may cause unit damage that could affect warranty. ROUTING POWER LEADS INTO UNIT Use only copper wire between disconnect and unit. The highvoltage leads should be in a conduit until they enter the duct panel; conduit terntination high-voltage entry at the duct panel must be watertight. leads through side panel. the power entry knockout See Fig. 2 and 3 for location and size. When leads are inside the unit. run leads up the high-voltage the line wiring splice box (See Fig. 13-19). Horizontal Duct Covers connect leads connect |8). the leads to the black, to the black and yellow yellow, Run the on the power raceway the to For single-phase units, wives: for 3-phase units, and blue wires (See Fig. C99030 CONNECTING Fig. 11--50JX with Duct Covers On (Unit Shown with Optional Louvered Grille) Connect wiring 10 GROUND the ground splice LEAD TO GROUND lead to the chassis box ISee Fig. 18). LUG using the ground lug in the Table 5--Electrical UNIT 50JS SIZE 018 024 V-PH-HZ 208/230-1-60 208/230-1-60 VOLTAGE RANGE COMPRESSOR MIN MAX RLA LRA 187 253 90 48 187 253 12.6 61 OFM FLA 09 0.9 Data--50JS IFM FLA FLA MCA FUSE OR CKT BKR 1.8 ./3.8/8.0 5 4/72 7.5/100 ./_ 18.1/20.8 26.0/300 361/417 14.0/14,0 36.5/40.0 46.4/51.5 59.1/66.0 20/20 40/45 50/60 2.0 -/3.8/5.0 5.477.2 7.5/100 _/_ 18.1/20.6 26.0/30.0 36.1/41.7 18.9/18.9 41.5/44.9 51.4/56.4 64.0/71.0 25/25 45/45 66/- _/. 18.1/20.8 26.0/30.0 36.1/41.7 54.2/62.5 21.3/21.3 48.8/47.3 53.8/58.8 66.4/73.4 89.0/99.4 25/25 45/50 20/20 30/35 45/50 60/- 253 14.7 82 0.9 2.0 208/230-3--50 187 253 9.9 78 0.9 2.0 /3.6/5.0 7.5/10.0 11.3/15.0 ./10.4/12,0 20.8/24.1 31.3/36.1 15.3/15.3 28.3/30.3 41.3/45.3 54.4/60.4 -/18.1/20.8 26.0/30.0 36.1/41.7 54.2/62.5 26.6/26.6 49.2/52.6 59.1/64.1 71.7/78.7 94.3/104.7 ./o 10.4/12.0 31.3/36.1 36.1/41.7 18.0/18.0 31.0/33/0 44.0/48.0 57.1/63.1 25/25 35/35 45/50 60/- 9.6 17.1 24.6 32.1 15 20 25 35 206/230-1 _0 167 253 16.8 82 1.5 4.1 208/230-3-50 187 253 9.9 85 1.5 4.1 -/9.8/5.0 7.5/10.0 11.3/15.0 1.9 -/5 10 15 ./o 18.1/20.6 26.6/30.0 36.1/41.7 54.2/62.5 72.2/83.3 30.5/30.5 53.0/66.5 62.9/68.0 75.6/62.5 98.1/168.6 120.7/134.6 40/40 60/60 3.8 -/3/8/5.0 5.4/7.2 7.5/10.0 11,3/15.0 15.0/20.0 3.8 -/3.8/5.0 7.5/10.0 11.3/15.0 15.0/19.9 ./o 10.4/12.0 29.8/24.1 31.3/36.1 41.6/48.0 20.2/20.2 33,2/35.2 46.3/50.3 59.3/65.3 72.2/60.2 25/25 40/40 50/66 60/- ./. 5 10 15 20.0 -/6,0 12,0 18.0 24.1 11.0 18.5 26.0 33.5 41.0 15 20 30 35 45 18.1/20.8 26.0/30.0 36.1/41.7 54.2/62,5 72,2/83.3 35.5/35.5 58.1/61.5 68.0/73.0 60.6/87.6 103.2/113.6 125.6/139.7 45/45 3/8/5.0 5.4,'7.2 7.5/10.0 11.3/15.0 15.0/19.9 o/. 3,8/6.0 7.5/10.0 11.3/15.0 15.0/20.0 -/10,4/12.0 20.8/24.1 31.3/36.1 41.6/48.0 22.6/22.6 35,7/37.7 48,7/52,7 61,7/67,7 74,6/82.6 30/30 40/40 50/60 1.8 -/5 10 15 20 6,0 12.6 18.9 24.1 11.5 19.0 26.5 34.0 41.5 15 20 30 35 45 -/18.1/20.8 26.0F._.0 36.1/41.7 54.2/62.5 72.2/83.3 43.7/43.7 66.3/69.7 76.2/81.2 88.6/95.8 111.4/121.8 134.6/147/9 60/60 6.2 -/3.8/5.0 5.4/7.2 7.5/10.0 11.3/15.0 15.0/20.0 -!10.4/12.0 20.8/24.1 31.3/36.1 41.6/48.0 32.0/32.0 46.6/47.0 58.6/62.1 71.1/77.1 83.9/91.9 40/40 50/50 6.2 -/3.8/5.0 7.5/10,0 11.3/15.0 15.0/19.9 3.2 -/5 10 15 20 6.0 12.0 18.0 24.1 14.0 21.5 29.0 36.6 44.1 20 25 30 40 45 208/230-3-60 460-3-60 208/230-1-60 208/230-3-60 460-3-60 208/230-1-60 O6O 205/2_3-50 460-3-60 187 187 414 187 187 414 167 187 414 606 253 253 506 253 253 506 253 253 506 5.5 20.6 12.4 6.7 24.4 14.1 7.1 28,8 19.4 8.0 40 115 90 45 140 105 53 166 125 63 0.8 0.9 0.9 0.8 1.8 1.5 3.5 1.5 3.5 0.8 1.5 1.5 0.8 11 -/70 70/70 70/80 90/100 -/9.8/5.0 5.4/7.2 7.5/10.0 11.5/15.0 414 MOCP 70/80 187 ./o 6.0 12.0 18.0 SUPPLY 60/70 208/230-1-60 208/230-1-60 048 SINGLE POINT POWER -/3.8/5.0 5.4/7/3 7.5/10.0 11.3/15.0 460-3._60 042 HEAT Nominal Kw o 030 036 ELECTRIC 35/35 50/60 -/70 70/80 60/80 100/110 -0/70 80/90 80/90 100/110 125/150 -/70 80/90 70/70 90/90 90/100 110/125 150/150 70/70 80/90 70/80 100/110 100/110 125/125 150/150 ° 60/70 80/80 90/100 Table 6--Electrical UNIT 50JX SIZE 024 V-PH-HZ VOLTAGE RANGE MIN 208/230 140 187 MAX 253 Data---50JX COMPRESSOR ELECTRIC OEM FLA RLA 10.8 FLA MCA 56 43.8/5.0 5.4/7.2 7,5/10.0 41/81/20.8 26.0/30.0 36.1/41.7 16.4/16.4 39.0/42.4 48.9/539 61.5/68.5 20/20 40/45 60/60 3.8/5.0 5.4/7.2 7,5/10.0 11,3/15.0 18.1/20.8 26.0/30.0 36.1/41,7 54.2/62,5 20.5/20.5 43,1/46.5 53.0/58,0 65.6/72.6 88.2/98.6 25/25 45/50 0.90 2.0 187 253 14.0 73 0.9 2.1 208/230-3-50 187 253 10.4 63 0,9 2.1 43/5/5,0 7.5/10,0 11.3/15.0 -/10A/12,0 20.8/24.1 31.3/36.1 16.0/16.0 29.0/31.0 42.1/46.1 55.1/61 1 20/20 35/35 45/50 -/18.1/20.8 26.0/30.0 36.1/41.7 54.2/62.5 26.1/26.1 48.6/52.1 58.6/636 71.2/78.2 93.8/104.2 35/35 50/60 -/10.4/12.0 36.1/41.7 31.3/36.1 19.2/19.2 32.2/34.2 45.2/49.3 58.3/64.3 25/25 35/35 50/50 9.6 17.1 24.6 32.1 15 20 25 35 208/230-1-50 187 253 16.7 97 1.6 3.6 -/3.8/5.0 5.4/7.2 7,5/10.0 11.3/15.0 208/230-3-60 187 253 11.2 75 1.6 3.6 43.8/5.0 7.5/10.0 11.3/15,0 460-3-60 414 506 5.4 37.5 0.9 1.9 -/5 10 15 418.1/20.8 26,0/30.0 36.1/41,7 54,2/62.5 72.2/83,3 28.0/28.0 50,6/84.0 60.5/65.5 73.1/80.1 95,7/106,1 118.3/132,2 35/35 63/60 4.1 -/3.8/5.0 5.4/7.2 7,5/10,0 11.3/15.0 15.0/20.0 3.8/5.0 7,5/10,0 11,3/15.0 15.0/20.0 10.4/12.0 20.8/24.1 31.3/36.1 41,6/48,0 20,5/20.5 33,5/35.5 46.6/50.6 59.6/65.6 72.5/80.5 25/25 40/40 50/60 2.0 45 10 15 20 46 12 18 24.1 10.2 17.7 25,2 32,7 40.2 15 20 30 35 45 -/18.1/30.8 26,0/30.0 36.1/41,7 54.2/62.5 72.2/83.0 34.9/34.9 57.4/60.9 67.3/'72.4 80.0/86.9 102.5/113.0 125.1/139.0 45/45 4.1 43.3/5.0 5.4/7,2 7.5/10,0 11.3/15.0 15,0/20.0 4.1 -/3,8/5.0 7.5/10.0 11.3/15.0 15.0/20.0 -/10.4/12.0 20.8/24.1 31.3/36.1 41.6/48.0 21.9/21.9 34.9/36.9 47.9/51.9 60.9/67.0 73.3/81.8 30/30 40/40 50/60 2.0 -/5 10 15 20 46 12 18 24,1 10.8 18.3 25.8 33.3 40,8 15 20 30 35 45 418.1/20,8 26.0/30.0 36.1/41.7 54.2/62.5 72,2/83.3 43.6/43,6 66.2/69.5 76.1/181.1 88.7/95.7 111.3/121.7 133.9/147.8 60/60 6.2 43,8/8,0 5.4/7.2 7.5/10.0 11.3/15.0 15.0/20.0 6.2 43.8/5.0 7.5/10,0 11.3/15.0 15.0/19.9 410.4/12.0 20/8/24.1 31.3/36.1 41.6/48.0 29.2/29.2 42.3/44,3 55.2/59.4 68,3/74.3 81.2/89.2 35/85 50/50 60/60 3.2 -/5 10 15 20 46 12 18 24.1 15.4 22.9 30.4 37.9 45,4 20 25 35 40 50 208/230-3_60 460-3-60 208/230-1-50 O48 208/230-3--50 460-3--60 208/230-1-50 06O FUSE OR CKT BKR Nominal Kw* 208/230-1_50 208/230-1-50 042 SINGLE POINT POWER LRA 03O O36 HEAT IFM FLA 208/230-3_60 460-3-50 187 187 414 187 187 414 187 187 414 253 253 506 253 253 506 253 253 506 18.4 12,4 5.8 23.4 13.0 6.4 28.8 17.3 9.0 104 88 44 126 93 46.5 169 123 62 0.9 0.9 4.1 0.9 1.6 1.6 0.9 1.4 1.4 0.9 12 ./. 6 12 18 SUPPLY MOCP 70/70 70/70 70/80 93/100 60/70 70/80 80/80 100/110 ° 60/70 o 80/80 80/90 100/110 125/150 60/70 80/90 70/70 90/90 90/90 110/125 150/150 70/70 80/90 70/80 100/110 100/100 125/125 150/150 70/80 90/90 SCHEMATIC MkXI_iJM WI_[ _IZE 2 AwG I _ _ III I USED wITH A{¢ESSOffY WIBL_ _UPPLY w2 OPTIO_ O_LY HEAI[N OPIIO GND ,t .... I gL K MAX _lff[ r_O _P Y[L POw[R [OULP FO_ 5 KWl <_, _ _,_, , _c_ BLI( _ 50JSO _l 60_LI] L_ _ _WWI9 _ - _-T_-60 AMP USED WI1H ACC[SSO_I % _ OMP 50 JX030 _--fCONN[CT S B _BLK FIIZ i tpELU_ B_sw_t OPTION ONLI I U_ED WIIH [L{C] H[AI ItEAI[R _pl IONS 51(W (04_ OBOI 90 ONLII _LIJ ME 2F_[_ F_R j IrM AMP _ B C_PI 9 _TLL-- 0_ qu Br _L_ ZtO MAI WIRE AMP [OP_ ?_ '018 _ I/ I0_01 I KW USEO Wllk_ ACC[ 5501_ I I 50 AMP S B _14! 60 AMp 160 _TRI \_ S g iWllO _ OPTION QN[Y US[D WI[H m HEAIEII OPILONS 15KW(030 0601 20KWIO_6 0601 2/0 MAX W RE o B _0 AMp S -<TO HT_ _ 60 A_P S B 50 A_P • HI 2 AMP MANUAL YEL_ R[S[T TRANI Ill BgN -WI2 BR_ F----WII50RN_ F S[[ ----WI L HOT[ 15_ 3 RID __WI7 DEF_OST_ NED_ W18 BOARD (DBI r=:_L_ _[_l!0_00 PNK_ _EL-- ] _19 PNK_ B_I_ _* CTD B_U 0_N-- _10 B_N _3 B_ T[S_ _ --_2_ B__3 B_ -W12 k SUPPL 8Ikt FIELDSEE ACCESSSORI W2 EL[_TRIC flEAT BRN-- • C: THERMOSTAT NOT£12 --_69 HRI VIO --Wl20 & _ (10 KWI_2 7 BRN I "-,kS2'--' 6RA HNI2 _21BRN HRI23 m _ 3 115 & _ 120 _wlJ I 121B_N BRN-- K_I _W123 24V ONI[ COMPOb_[III ARRANG[M[IIT rl[uo S_LIC[ S_¢TIOW $[Ct_ --_¢t_i WI_I_ A,_ _oaU_;Ank[H[_t X.rlCreAt_ _to C_p_SOI T,_[ oe_ et_<thT_l CTit;ill C_p_[_S_ OELA_ #Op i _.l_ ggl TS_ i D[rrosl BOAeO ot _DrUPL[ T_.I_ _ TI.I D_L_t_IL_t TW[_T_T .(_TI_ [ou,p 'k 50JS500005 i66_ Fig. 13--Wiring Schematics (208/230-1-60) ROUTING CONTROL POWER WXRF_ (24-V) low-voltage hole provided in unit into unit control power splice Form a dsip-loop with the thermostat leads before routing them into the unit. Route file thermostat leads through grommeted, box (See Fig. 2 and 3). Connect thermostat leads to unit conlrol power leads as shown in Fig. 17. 13 SCHEMATIC 208123@3-60 [0FM L rONL¢I IDR RED YEL_ GR_ YEL_W26 GRN-YEL GRN YEL_ GRN YZL TRANI Wll BRN _12 _RN I0 BRN II BRN RED --WI6 GRN _TT --WII90RN_ B see NOTe#5--_ Im _[FROST_ - BOAR_ IDB) _{_50_0 -- I K13o AUIO_ [51 --wI8 TEL >Fr LPS _ _L_TBLU i ON --WIT _ro_?:BRNB_ WNT RE_ W20 W22 BLK_W?? ' UppL [_T BRN-- _UPLH"_ 1H2 _CCESSORI k L W2 I SUPPL HEAT FI[LD S[E _ I TH[RMOSIAT NOTE#2 [LECIRIC HEAI_ q _7_ WH[ I WI30 mWI31PN_ _133 I VIO GRk HRI ? 3 & 4 (20 K_l_ I UNIT COWPONENT ARRANGEMENT _ )UTOOOe F_ SECTlOW Frn r_ rm rl_ D _tlCE _a_ _JUSTXBL_ N_ _OFWJ _ _N_,_l_tO_ t_r (I 3_ L _ EN UeOST / CTCL_ t_ --22/ L;O )134 Fig. 14--Wiring Schematics The unit transformer supplies 24-v power for complete system including accessory electrical heater. An automatic-reset circuit breaker (See Fig. 19) is provided in the 24-v circuit; see die caution (208/230-3-60) label on the transformer or Fig. 20. Transformer is factory wired 14 --, _ AXIMIJ_ WIRE SIZE Z AWG ii EOUIP WITH ELECT OpIlON H/AT[_ SCHEMATIC IE L SUPP Y BLtJ-- GND -- -IIII HEAl ONLY OPIIONS 51015 USEO 'IIH& 20 MAI , _T_ WI BLK-- IIIIL_oWER_w2 _W USED F_ELD W]RL lie KW-i '_ _ / SEE NOIE 15_ pLI-I C001_5 Fig. 15_Wiring Schematics for 230-v operation.If supply voltage is 208-v, rewire _ansfozTn_r primary as described in Special Procedures for 208-v Operation section, (460-3-60) SPECIAL PRO_EDUP_S FOR 208-V OPERATION 1. Disconnect the yellow primary lead from the transformer. See unit wiring label (See Fig. 13 and 14). 15 EXAMPLE: Supply voltage is 460-3-60. A B c AB = 452 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 LEGEND AC = 455 v C@ II_il_ Average Voltage = 452 + 464 + 455 3 BC = 464 v = 1371 3 = 457 NOTES: 1. In compliance with NEC (National Electrical Code) requirements for multimotor and combination load equipment (refer to NEC Articles 430 and 440), the overcurrent protective device for the unit shall be Power Supply fuse. Canadian units may be fuse or circuit breaker. 2. Minimum wire size is based on 60 C copper wire. If other than 60 C wire is used, or if length exceeds wire length in table, determine size from NEC. 3. Unbalanced 3-Phase Supply Voltage Never operate a motor where a phase imbalance yn supply voltage is greater than 2%. Use the following formula to determine the percentage of voltage imbalance. Determine maximum deviation from average voltage. (AB) 457 452=5v (BC) 464 457=7v (AC) 457 455=2v Maximum deviation is 7 v. Determine percent of voltage imbalance. % Voltage Imbalance = 100 x = 1.53% This amount of phase imbalance maximum allowable 2%. % Voltage imbalance = 100 x 7 457 max voltage deviation from average voltage average voltage is satisfactory as it is below the IMPORTANT: If the supply voltage phase imbalance is] more than 2%, contact your local electric utility company/ immediately. I C99024 Fig. 16_Electrical L Data Legend "_BRN-- @ "J_ORN-- __ J_--_RED-- "J_GRN-- THERMOSTAT AND SUBBASE UNIT CONTROL POWER SPLICE BOX C99056 Fig. 17--Control Connections 24 V Circuit Breaker GROUND LUG N SLPICE BOX C99070 GROUND LEAD Fig. 19_Control SINGLE-PHASE CONNECTIONS TO DISCONNECT PER NEC L1 - L2 - _-'_ 3-PHASE CONNECTIONS L3 - _L-_BLU-- Wiring Plate /L_BLK-TRANSFORMER CONTAINS A MANUAL RESET OVERCURRENT PROTECTOR m YEL- NOTE: IT WILL NOT AUTOMATICALLY RESET DISCONNECT POWER AND INSTALL LOCKOUT TAG PRIOR TO SERVICING Use copper wire onl LEGEND NEC - National Electrical Code - - Field Wiring _ Splice Connections THIS COMPARTMENT MUST BE CLOSED EXCEPT WHEN SERVICING C99058 C99057 Fig. 20_Transformer Fig. 18---Line Power Connections 2. Connect the yellow labeled 200 v. primary lead to the transformer terminal Label Indoor blower-motor speeds may need to be changed for 208-v operation. Refer to indoor airflow and airflow adjustments section. 16 PRE-START-UP Failure to observe serious personal I. Follow the following injury goggles when safety checking could or servicing protective refrigerant system. or provide compressor terminal any electric cover erant 6. leak is suspected attempt to repair system Do not is under use around soldered torch compressor any under wear 1/8" (3 175mm) MAX BETWEEN MOTOR AND FAN HUB terminals. while component. pressure. protective C99009 Fig. 21--Fan System and Using unsweat Use the Start-Up proceed as remaining tubing cutter and l. tubing supplied to inspect stubs when neces- to torch at the end of this book and prepare the unit and for initial 2. Read access and follow CAUTION, shipped 3. Make instructions and on all DANGER, INFORMATION labels a. Inspect lines, loose unit to, leak. and handling etc. tubing connections Leak-test oil generally all refrigerant leak detector, erant leak is detected, Leaks section. all field d. Ensure wires sheetmetal e. Inspect touch b. Make sure with water (See remove unit Schrader using the practices. lie system using an approved R-22 refrigerant, or accurate has been method. required operating when the outdoor using scale. Refer to 500 volumetric- to unit rating to add extra of filter drier. plate refrigerant to Adjustments starting when Allow for Refrigerant connections. during tubing shipping Be sure procedures given the unit. Do not operate temperature between the 40 ° F (unless Do not rapid-cycle "'on" Pre-Start-Up any safety devices the unit in Cooling is below kit is installedl. 5 minute in the unit. Do not jumper cycles CHECKING COOLING CONTROL OPERATION mode accessory the compressor. to prevent compressor operation as follows: Observe and handling, conditions: blade is correctly positioned drainage. proper and trap spring holddown mounted. and switch in AUTO is placed position. 3. Place on the suction loose parts have down ports, one shuts switch switch starts when FAN down within position. switch is placed 60 sec. when FAN position. in COOL Set control position and FAN switch below room temperature. cycle shuts down when control switch in OFF in HEAT position. setting Set in Observe is satisfied. control above room temperature. Observe that compressor, outdoor fan, and indoor blower motors start. Observe that heating cycle shuts or when control setting 4. When using an automatic boll SYSTEM and FAN bolts. has 2 Schrader-type system control SYSTEM motor in ON position AUTO are filled Do not loosen thermostat that blower that cooling to ensure are internally room 2. Place SYSTEM in Fig. 21). pan AND HEATING Start and check the unit for proper or sharp a fin comb. drain system with cylinder before low-ambient If a refrig- and tight. refrigerant fins will fitting located accepted filter drier whenever for leaks 2--Start-Up section and on connections Check that condensate compressor system system a Step a refrigerant solution. c. Make sure that all tools and miscellaneous been removed. 5. Compressors leak following to relieve refrigerant. unit 1. Place sure that outdoor-fan fan orifice remaining the unit as follows: ports damage. coil fins. If damaged the following a. Make see following not straighten and reclaim charging edges. carefully 4. Verify tubing or liquid-soap are completed do low-pressure 5. Charge Complete indicates and factory-wiring that connections leaks and charge and system or such as broken wires, electronic c. Inspect damages disconnected Detecting high- for required charge. Be sure compensate for internal volume for oil at all refrigerant base. parts, both Leaks refrigerant and evacuate refrigerant if no additional leaks are found. inspections: for shipping b. Inspect 6. Each WARNING, attached at the end of this book. 4. Reclaim microns with, unit. the following and repair refrigerant Use 3. Check panel. supplied for Refrigerant NOTE: Install a bi-flow opened for repair. start-up: 1. Remove 1--Check 2. Repair flame. Checklist as follows: pressure when exposed Checklist follows the Start-Up Step from unit. sary. Oil can ignite Blade Clearance START-UP goggles Locate boll high- and low-pressure ports. c. Cut component connecting tubing will MOTOR SHAFT refrig- a. Shut off electrical power to unit and install lockout tag. b. Relieve and reclaim all refrigerant from system using d. Carefully and tight or lhe occur. before box if proceed component could and as follows: remove caps are in place leakage until all electri- connection to remove the plastic or refrigerant pressure. contains oil and refrigerant To remove a component, proceed possibility power to is in place and recover all refrigerant from system or disturbing anything inside terminal refrigerant 5. Never in and wear 3. Do not remove compressor terminal cover cal sources are disconnected and tagged. 4. Relieve touching result the field. Ensure practices compressor unit unless secured. warnings discharge line. Be 7. High flow valves are located on the compressor hot gas and suction tubes. These valves can not be accessed for service in or death: recognized 2. Do not operate Schrader fitting located on the compressor sure that caps ,)l] the ports are tight. low-side serve line, and one high-side control 17 that unit operates is satisfied. changeover room thermostat, place switches in AUTO positions. Ob- in Cooling is set to "'call for Cooling" mode (below when room temperature temperature), OUTDOOR COIL INDOOR COIL tcs LI ¸ Me_n_ LEGEND HPS - High Pressure Switch LCS - Loss of Charge Switch _ Accuratel = Metering Device ] Arrow indicates direction of flow C00095 Fig. 22--Typical Heat Pump Operation, Heating Mode OUTDOOR INDOOR COqL COIL LC$ Bypass Position LEGEND HPS - High Pressure Switch LCS - Loss of Charge Switch _ Accuratef' Metedng Device ] Arrow indicates direction of flow C00096 Fig. 23--Typical and unit operates is set to "call IMPORTANT: ented. in Heating Three-phase. scroll Unit must be checked power lead mode for Heating "_(above orientation. proper corrected label is attached control are direction compressor within to the outside level is suspect temperature). compressors to ensure If not when temperature room Heat Pump Operation, Cooling Mode to nameplate ori- physical 3-phase 5 minute, in Heating amount. (This When cated backwards, difference condition exists somewhere ficient airflow across either may be dramatically CHECKING AND The refrigerant is tested NOTE: system and factory of 15 minutes lower very minimal. before Adjustment than normal. ADJUSTING sealed. Allow checking of the unless the unit is suspected with R-22 refrigerant system or adjusting refrigerant of not having CHARGE to operate The amount and and/or a minimum is not the proper from the the refrigerant charge, factory must adjustment charge is indicated, in the cooling system, coil or both coils. an indialways be an abnormal such as insuf- of refrigerant Manual, data charge table. Refrigerants is listed on the unit nameplate Refer to the Refrigeration Service Section. NO CHARGE required Check for leak. Use standard evacuating techniques. After evacuating system to 500 microns, weigh in the specified amount of refrigerant (refer to system data plate). R-22 charge. The charging label and the tables shown refer to system tures and pressures in cooling mode only. A refrigerant and charge may be obtained CHARGE the physical Techniques charge. charge to the specified If a substantial REFRIGERANT REFRIGERANT is fully charged adjustment evaluating internal protector will shut off the compressor. The 3-phase power leads to the unit must be reversed to correct rotation. When turning scroll compressors emit elevated noise levels, and the between compressor suction and discharge pressures information access door. If charge all refrigerant data table also.) IMPORTANT: the of the service mode, reclaim temperacharging 18 Balance Point Worksheet 7O Based on Indoor Entering Air of 70 F and Rated CFM 6O B50 co :to° 8_ ou --'_--024 40 --11--030 _Q- --'_-- 036 _ ---X---042 C i_ ---,_<--048 30 --O_-060 m_ __ 2o lO o -lO 10 17 20 30 40 47 50 60 Outdoor Air Temp (Deg F) C00093 Fig. 24--50JX LOW CHARGE Use Cooling Balance Point Worksheet COOLING Char_ng NOTE: Charts (Fig. 26 38). Vary refrigerant Be sure that all supply-and from obstructions, until and adjusted the conditions of the chart are met. Note that charging charts are different from type normally used. Charts are based on chafing Airflow can be changed blower motor. the units to correct superheat Unit 50JS and 50JX Accurate pressure gage required. Connect the for the various and operating temperature pressure gage sensing to the conditions. devices service port are 50JX on the 030 suction line. Mount the temperature sensing device on the suction line and insulate it so that the outdoor ambient does not affect the reading. Indoor air CFM range of the unit. TO USE COOLING Take the pressure temperature NOTE: If the refrigerant INDOOR the normal two-speed AIRFLOW the lead connection motors (except for low speed for medium wired are open, free speed. of the sizes 50JS 018 and operation. Unit 50JS Unit 50JX 018 has a for low speed. Motors: The motor leads are color-coded as Black = high speed temperature and to determine read the what the suction Blue = medium suction To change causing to Check the inaccurate for Refrigerant AND AIRFLOW readings Leaks speed Red = low speed be. problem speed wired wired motor For 208/230-v follows: operating CHARTS to the chart leak, refer is factory by changing three are factory grilles 3-SPEED ambient Refer should be within CHARGING outdoor gage. must 030) return-air properly. the speed motor speed is a is attached section. of the indoor fan motor (IFM), leg lead from the Time Delay Relay to TDR-3 for single-phase and 3-phase remove (TDR). the fan This wire units. To change the speed, remove and replace with lead for desired blower motor speed, hlsulate the removed lead to avoid contact with chassis ADJUSTMENTS parts. For 460-v follows: For heating and cooling is 350 to 450 cfm operation, for each the recommended 12.000 Btuh of rated airflow to maintain these airflows could result in damage Motors The motor leads are color coded as 3-SPEED cooling Black = high capacity. For units with optional electric heat, the airflow must not be reduced below the levels stated in Tables 3 and 4. Failure the unit. GE Violet = jumper Orange = medium Red = low to To change the speed of the indoor fan motor (IFM), remove fan Tables 7 and 8 shows both heating and cooling airflows at various external static pressures. Refer to these tables to determine the motor speed lead from the Time Delay Relay (TDR) and replace with the lead for the desired blower motor speed. The motor speed airflow lead is attached for the system being nsta ed 19 to terminal TDR-3. For low and medium speeds, Balance Point Worksheet 7O Based on Indoor Entering Air of 70 F and Rated CFM 6O m 50 z8 F-_ m& 8_ i_ 30 __ 20 10 -lO lO 17 20 Outdoor 30 47 40 50 60 Air Temp (Deg F) C00094 Fig. 25---50JS Balance Point Worksheet black must be connected end to avoid contact to the jumper with chassis wire. Insulate parts. To select removed lead high speed on 460 v GE motors, separate the black female quick connect (QC) from the jumper lead male quick connect (QC) and connect the Failure to follow or death: black lead to the BR. Insulate 1. Turn off electrical chassis the jumper to avoid contact with any before parts. To ensure possibility continuing high of premature must be performed performance, equipment and failure, on this equipment. to minimize periodic be inspected at least once each year by a qualified To troubleshoot unit, refer to Table I I. NOTE about TO EQUIPMENT the availability OWNER: of a maintenance Consult your local caution 3. Never place anything with, the unit. unit should service ment requires to properly certain perform expertise, equipment, panels personal tag and parts. As injury can result combustible either om or in contact dealer maintenance made when mechanical skills, tools reconnecting operation. Label wires may cause improper all wires prior to disconnect- ing when servicing. on this equipand The minimum follows: equipment. If you do not possess these, do not attempt to perform any maintenance on this equipment, other than those 1. Inspect procedures recommended in the User's Manual. FAILURE TO HEED THIS WARNING COULD RESULT IN SERI OUS INJURY OR DEATH AND POSSIBLE DAMAGE TO THIS when removing lockout on this unit. contract. and dangerous ability or service injury person. Errors The in serious from sharp edges. maintenance This heat pump any maintenance with any mechanical the could result power to the unit and install performing 2. Use extreme MAINTENANCE these warnings maintenance air filterlsl requirements each month. drain pan. for this equipment are as Clean when or replace necessary. EQUIPMENT. 2. Inspect indoor coil, cooling season for cleanliness. 3. Inspect blower season. 4. Check proper motor and wheel Clean and condensate Clean drain each when necessary. for cleanliness each cooling when necessary. electrical operation connections for tightness and controls for each cooling season. Service when neces- sary. 5. Ensure sheet 20 wires metal axe not contacting edges. refrigerant tubing or sharp Table 7--Wet Coil Air Delivery Unit 50JS 018-060 (Deduct 10 percent for 208-V)* MOTOR SPEED UNIT 0.0 Low 018 Med Low Med Low Med Cfm 821 696 575 283 274 267 848 707 555 Watts 237 214 191 Cfm 971 821 696 WaRs 368 366 365 Cfm 957 872 785 WaRs 295 292 289 0.8 0.9 Low Med High Low Med 802 Low Med 414 891 735 928 882 388 383 377 372 366 Cfm 1203 1120 1062 1004 930 838 469 458 449 442 1141 1027 924 828 361 WaRs 592 581 567 552 538 525 512 499 Cfm 1499 1421 1351 1281 1207 1125 1034 936 WaRs 660 636 617 603 592 581 566 Cfm 1475 1371 1274 1186 1105 1024 928 776 1452 761 1356 744 1254 725 1145 706 1030 WaRs 606 596 586 575 563 550 537 1066 Cfm 1464 1399 1341 1282 1218 1146 WaRs 680 665 649 635 622 611 600 590 Cfm 1608 1535 1461 1387 1316 1247 1180 1111 WaRs Cfm 768 1656 755 1576 742 1508 730 1447 718 707 696 684 671 1390 1331 1268 1198 1119 WaRs 741 724 709 690 664 631 594 562 543 552 Cfm 1994 1937 1869 1797 1722 1645 1566 1480 1384 1269 WaRs 773 744 715 687 662 640 625 Cfm 1957 1867 1787 1719 1653 1575 1463 799 782 773 756 704 1914 1842 1774 1686 1538 WaRs 742 723 698 666 629 591 559 540 Cfm 2197 2141 2103 2057 1988 1894 1783 1674 Watts 838 822 803 780 752 721 689 661 639 632 Cfm 2485 2406 2269 2127 2012 1937 1894 1855 1770 1571 934 2483 913 2391 891 2283 866 837 806 776 780 735 2170 2061 1960 1868 1780 1687 Watts Cfm High 688 425 Cfm WaRs Cfm High • Air delivery values are based on operating voltage of 230-v or 460-v, wet coil, without fiRer or electdc heater. Deduct tilter and electric heater pressure static pressure available for ducting. NOTES: 1. Do not operate the unit at a cooling airflow that is less than 350 cfm for each 12,000 Btuh of rated cooling capacity. this point. 2. Dashes indicate per{ions of table that are beyond the blower motor capacity or are not recommended 3. Deduct 10 percent for 208-v. Step 1--Air IMPORTA, Step 2--Indoor Filter NT: Never in the return-air operate the unit without duct system. Always replace same dimensional size and type as originally 1 and 2 for recommended filter sizes.) Inspect air filter(s) (throwaway-type) each cooling season dust and lint. 1,0 360 WaRs Watts Cfm High 6O 170 WaRs Cfm High 48 191 Watts Cfm High 42 214 Cfm Low 36 WaRs WaRs Cfm High 30 EXTERNAL STATIC PRESSURE (IN. WG) 0.3 0.4 0.5 0.6 0.7 0.2 WaRs Med 024 0.1 at or clean least once each (cleanable-type) or whenever a suitable air filter the filter with the installed month replace clogged drops to obtain coil frosting may occur at airflows below blower and motor For longer life, operating economy, and continuing efficiency. clean accumulated dirt and grease from the blower wheel and motor annually. at least twice during the filter becomes 910 NOTE: All motors _e prelubricated. Do not attempt to lubricate these motors. (See Tables and Evaporator 689 with 21 Table 8_Wet Coil Air Delivery Unit 50JX 024-060 (Deduct 10 percent for 208-V)* MOTOR SPEED UNIT Low 024 Med Low Med Low Med Low Med 275 273 271 270 Cfm 923 844 754 669 (IN. WG) 0.7 Med Low Med High 0.9 359 353 350 347 341 Cfm 941 876 814 737 622 447 439 431 423 968 869 765 659 WaRs 276 276 272 781 Cfm 963 929 WaRs 375 377 371 362 354 350 Cfm 1202 1170 1079 976 884 807 469 449 435 428 1174 988 828 718 WaRs 462 451 431 411 394 381 Cfm 1374 1290 1205 1116 1020 916 WaKs 523 506 490 471 449 426 Cfm 1500 1408 1301 1190 1082 977 645 1474 628 1369 610 1267 595 584 575 1169 1069 962 1.0 Watts 620 600 586 574 562 548 530 510 487 462 439 Cfm Watts 1662 1621 1581 1540 1496 1447 1392 1331 1263 1186 1103 686 661 634 6O6 577 547 517 1722 1662 1594 1515 757 1427 730 1330 704 1227 682 1669 1577 1486 1402 Watts 620 600 586 574 562 548 530 487 Cfm 1662 1621 1581 1540 1496 1447 1392 1331 Watts 763 747 729 709 686 661 634 606 577 547 517 Cfm 1917 1868 1822 1774 1722 1662 1594 1515 1427 1330 1227 852 1982 832 809 784 757 730 704 682 1914 1839 1757 1669 1577 1486 1402 watts Cfm High 0.8 WaRs Watts Cfm Low 60 WaRs Cfm High 48 EXTERNAL STATIC PRESSURE 0.3 0.4 0.5 0.6 Watts Cfm High 42 0.2 WaRs Cfm High 36 0.1 WaRs Cfm High 30 0,0 Wa_s 597 592 578 526 460 452 445 Cfm 2265 2190 2101 2033 1974 1869 1614 1263 Watts 754 730 707 687 671 658 646 630 603 558 486 Cfm 2383 2282 2202 2134 2070 2005 1935 1858 1771 1667 1576 Watts Cfm 901 2480 876 2383 856 2301 836 2233 813 785 755 723 696 681 687 2175 2122 2066 1998 1910 1788 1619 • Air delivery values are based on operating voltage of 230-v or 460-v, wet coil, without fitter or electric heater. Deduct tilter and electric heater pressure drops to obtain static pressure available for ductin9. NOTES: 1. Do not operate the unit at a cooling airflow that is less than 350 cfm for each 12,000 Btuh of rated cooling capacity, Evaporator coil frosting may occur at airflows below this point. 2. Dashes indicate portions of table that are beyond the blower motor capacity or are not recommended. 3. Deduct 10 percent for 208-v. attachment. r_ k','l_ ;1: I1: [,] Disconnect cleaning 1o adhere and tag electrical and lubricating power the blower to this warning could to motor cause the condenser pan at lea-st once conditions coil, evaporator each heating before and wheel. Failure injury COIL, through Straighten bent clean coils fins with or death. with with oil or solution. using a garden hose. Be careful insulation, wiring, or air filter(s). coil fins from inside to outside not to For best the unit. On units with an outer and inner condenser coil, be sure to clean between the coils. Be sure to flush all dirt ,and debris from the unit AND and condensate season when dry: therefore, drain or sooner Inspect if inspect If coated cleaner, using and clean soft matter clear water. pan and condensate drain brush 22 line when inspecting drain by removing from the pan. Flush the pan and drain trough Do not splnxh water or air filter(s). with dirt or lint, the the drain the coils. Clean the drain pan and condensate coil. a vacuum the fins. If coated a mild detergent-and-water base. coil, and cooling a fin comb. not to bend the coils with splash water on motors, results, spray condenser or after each cooling season. Remove all weeds and shrubs, that interfere with the the condenser Be careful clean Rinse coils with clear water, foreign the coils either before obstructions, including the unit require. The coils are easily cleaned airflow the serious Step 3_UTDOOR COIL, INDOOR CONDENSATE DRAIN PAN Inspect grease, If the drain '*plumbers snake" or similar drain port above the drain on the insulation, trough is restricted, motor, clear all with wiring, it with probe device. Ensure that the auxiliary trough is also clear. a (018) 60HZ CHARGING 6891 CHART (024) 60HZ CHARGING CHART 52 100 46 41 ;Os5. 48: 414: 95 35 85 29 75 24 65 18 55 13 45 7 z O 345 (n 50 " 2071 20.0 3o.o .o.o so.o 6oo SUCTION 17 LINE TEMPERATURE I 4 10 LINE TEMPERATURE -1 SUCTION _o.o 20.0 30.0 40,0 500 60.0 SUCTION LtNETEMPERATURE °F I "I -1 4 10 16 SUCTION LINE TEMPERATURE °(_) (°F) 16 (°C) I 21 I 27 50JS500087 I -7 ! L 700 80.0 I 21 • 27 50JS500088 50JS 024 (036) 60HZ CHARGING 90 _ III _ CHART ""-',_ ZTO _ -_ J -If i _ 414 io _50 I 20.0 [ ......... 20.0 r ____ SLICTION -7 L[NE TEMPERATURE ÷1 4 10 (_F) 16 I 21 r -7 27 50JS500089 C00028 Fig. 28.--Cooling Step 4--Outdoor 30.0 40.0 50.0 60.0 SUCTION LiNE TEMPERATURE {°F) I I I I -1 4 10 16 SUCTION LINE TEMPERATURE °C_ Charging Chart, 5OJS030 Fig. 29--Cooling fan 5. Ensure i I 27 5=0_J=SSOOOgp=J I 21 .... engages the flat area on the motor shaft tightening. 6. Replace Step 800 Charging Chart, 50JS 036 UnCi°t= _29 s that setscrew when 70.0 grille. 5_Electrical controls and wiring Inspect and check the electrical controls and wiring annually. Be sure to turn off the electrical power to the unit and install lockout tag. 1. Inspect the fan blades for cracks or bends. Remove 2. If fan needs to be removed, intake 3. Loosen grille and remove the setscrew 4. When replacing remove screws holding outdoor air grille. and slide the fan off the motor fan blade, in. (See Fig. 21) away shaft will be visible). position shaft. panel Check screw connections. noticed, end (1/8 in. of motor to locate all electrical disassemble all the connections If any smoky the connection, wire end and reassemble blade so that the hub is 1/8 from the motor access wiring. electrical or clean the connection controls for tightness. burned Tighten connections all the parts, restrip properly and all are the and securely. After inspecting the electrical controls and wiring, replace all the panels. Start the unit, and observe at least one complete cooling 23 (042) 60HZ CHARGING 20.0 3o.o 40.0 SUCTION LINE TEMPERATURE (°E_ -1 SUCTION 4 10 LINE TEMPERATURE 16 I'C). -7 so.o )Lr'CObqTEt4; F CHART 60.0 700 s0.0 200 6891 100i _I tl L 400 50.0 60 0 70.0 52 115 46 105 95 41 35 85 29 75 24 65 18 55 13 45 7 800 = 21 27 50JS500091 -7 [ J -1 SUCTION SUCTION Fig. 31--Cooling 50JS (060) 60HZ CHARGING 30 0 125 4 10 LiNE TEMPERAT_ LINE TEMPERATURE 16 (°_ 2t 27 50JS500092 j Charging Chart, 50JS 048 Unl_0031 CHART , i[ i:_ J_ _r i i i k.,,,u,_ ! 20.0 30.0 SUCTION -7 40.0 50.0 60.0 LINE TEMPERATURE (°F) -1 4 SUCTION Fig. 32_ooling 10 16 LINE TEMPERATURE ] i 70.0 80.0 / 21 27 (°C} .... Charging Chart, 50JS 060 unCi°t= _ 32 Table 9_FILTER FILTER SIZE 20X20X1 CFM 500 600 700 800 900 1000 1100 1200 0.05 0.07 0.08 0.10 0.12 0.13 0.14 0.15 0.09 0.10 0.11 20X24X1 24X30X1 cycle to ensure proper operating or if a suspected cycle, each electrical operation. component Refer determining label to the Sequence proper control If discrepancies malfunction with the proper tion. Refer to the unit wiring NOTE: PRESSURE DROP (In. wg) of Operation 1400 1500 0.13 0.14 0.15 0.16 0.07 0.08 0.09 0.10 are observed has occurred, electrical when making 1300 these section Step in check Inspect instrumenta- as an aid in operation. 24 1700 1800 1900 2000 2100 0.11 0.12 0.13 0.14 0.15 0.16 6---Refrigerant all refrigerant accumulation erant leak. checkouts. 1600 annually. 2200 0.17 2300 0.18 circuit tubing connections Detecting and the unit base for oil oil generally indicates a refrig- Table 10_ELECTRIC HEAT PRESSURE DROP TABLE Small Cabinet CFM STATIC 500 600 700 800 900 1000 1100 1200 1300 1400 1500 1600 5 kw 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.02 0.04 0.06 0.07 10 kw 0.00 0,00 0.00 0.00 0.00 0.02 0.04 0.06 0.07 0.09 0.10 0.11 15 kw 0.00 0.00 0.00 0.02 0.04 0.06 0.08 0.10 0.12 0.14 0.16 0.18 20 kw 0.00 0.00 0.02 0.04 0.06 0.08 0.09 0.11 0.13 0.15 0.17 0.19 Large Cabinet STATIC 1100 1200 1300 1400 1500 1600 1700 CFM 1800 1900 2000 2100 2200 2300 2400 2500 5 kw 0.00 0.00 0.00 0.01 0.02 0.03 0.04 0.05 0.06 0.07 0.08 0.09 0.10 0.11 0.12 10 kw 0.00 0.00 0.01 0.02 0.03 0.04 0.05 0.06 0.07 0.08 0.09 0.10 0.11 0.12 0.13 15 kw 0.00 0.02 0.03 0.04 0.05 0.06 0.07 0.08 0.09 0.10 0.11 0.12 0.13 0.14 0.15 20 kw 0.02 0.03 0.04 0.05 0.06 0.07 0.08 0.09 0.10 0.11 0.12 0.13 0.14 0.15 0.16 sec., fan relay is energized. delay is initiated. relay is de-energized during When thermostat is satisfied, an off When fixed delay of 60_+ 5 sec. is completed, this delay, and fan motor stops. If wall thermostat TDR is reset and fan relay remains fan closes energized. TDR is a 24-v device that operates within a range of 15-v to 30-v and draws about 0.5 amps. If the blower runs continuously instead If oil is detected or if low performance refrigerant using tubing solution. an electronic If a refrigerant Refrigerant Leaks If no refrigerant leak is suspected, leak detector, is detected, leak-test of cycling all probably or liquid-soap refer to Check Step for section. 12--Loss and Adjusting Step 7--Indoor airflow Refrigerant switch contains psig and closes is suspected, Charge section. NOTE: indoor airflow performance supply- does not require is suspected. and retunz-air If a problem grilles is clean. Airflow airflow. Adjustments Airflow Step 8--Metering unless When improper e.vists, be sure are open and free from and that tbe air filter and checking necessary, section refer to check that all to Indoor the system Step 9---Liquid (to protect wire mesh and are located metering metering drives) located for service inside the caps. in the field. Time-Delay thermostat is There is a liquid going into outdoor hot gas and these valves valves can not caps are in leakage could occur. at 7 to refrigeration to remove this device certain for that a problem remove and recover read 0 psi. Never all system open system with dry nitrogen. defrost header thermostat with a brass distributor and feeder coil. At the end of 1 of the feeder tube tubes, there thermostat and on most Thermostat signals heat pump that conditions are fight for range is closed at 30 ° +/- 3°F NOTE: The defrost thermostat must be located on the liquid side of the outdoor coil on the bottom circuit and as close to the coil as possible. (TDR) keeps indoor is a solid state blower This of wail thermostat gages temperature. Normal temperature and open at 80 ° +/- 5°F. be the plastic attached opens defrost or that conditions have changed to terminate defrost. It is a thermally actuated switch clamped to outdoor coil to sense its relay delay residual cooling in coil after improving efficiency of system. on closure Ensure of refrigerant Relay satisfied. These be removed, vacuum 13--Check are you are reasonably pressure Step 14--Defrost Valves Step 11 --Time-delay delay timer which breaking Defrost Flow place and tight or the possibility The without switches liquid line. This This switch is necessary. that there is only 1 stub tube used with liquid header, units it is the bottom circuit. are made of in the liquid lines on the inlet side of the High flow valves are located on the compressor suction tubes. Large black plastic caps distinguish with O-rings so that is switch it is not advisable unless the TDR is a 3/8-in. OD stub tube approximately 3 in. long (See Fig, 40). The defrost thermostat should be located on this stub tube. Note devices. Step 10_High accessed in line strainers liquid line strainers these If switch must charge Step device Refrigerant metering devices are fixed orifices and are located the inlet header to the indoor and outdoor coils. The exists. is set on AUTO, be replaced. switch is located on the outdoor under pressure, troubleshooting obstruction._, switch a Schrader core depressor. at 22 psig. No adjustment Because system the fan and must of charge The loss of charge leaks are found and low performance refer to Checking The off when defective operating enables compression The sequence control, TROUBLESHOOTING recycle Refer for 60 sec. after blower I I ) for troubleshooting to remove and Heating Use the Start-Up followed. of 1 25 Troubleshooting Chart (Table information. START-UP shutdown, thereby of operation is that and at end of a fixed on delay to the Cooling Checklist CHECKLIST to ensure proper start-up procedures are (024_eO h_ Q._p_e_G O_**RT ;too nE_ i I I J 200 :_0_ i ,7 q I 400 SO0 SUCTK_NL_E rEe,_- R_JF_ e00 _=G 700 S00 i 2t i 27 F) 4 10 16 SL,_T_e_ Ln,_ TEMPERATURE ICEG ¢_ _1XS00219 soJx _J ,,i '' 11 11 I ,_...... i i i _ ; i_ i i ,i ,1/ ; _._1._= i _ _ = I!11111= ' .... 2Oo i _oo i 4oo S_T_3N i soo eoo TEM_ER_t URE (DEG _1 i p I0 S_Ct K_N LI_ T_MPERA_JP_ _G C_ L_ _o i SO_SC_2 Fia. 36.--Coolina "i i r ! i ii i i i i i ] clllkl;iLL ......... i i_ _, = ,- Charaing_Chart,_5OJX .042 UnCi'_t= _°34 s _c '_ lOOO ii1_1 _o i,iiil_llk ,,,,,,,I,,_,,,r1_ IIIl_lllI,EIIly_l_llflllllll f IIIllll_l,I II_lllll=,L lllllll_llL ,,,,,,,,ILL ,,,,,,111_ i1,1111=1_ ,,I,,,,11_1 i1,111111_ i1_1111_1== ilJl_llll_l ,,,,,,_11_1 ,_I_=LIIII ,llllrll,= _,_,,,_,,,,, I _ I1_.-_1111 _1111111_ I_lllrlll ,,,,,,i,, ,11111 iiii1= i=1111 IJlIIL i:1111 I_IIIL IJlIIP i_lllr lll] llll 2OO :mO i_lJ_ 7oo z ,,. [ _o _o iiiiil 4OO SUC'r_I _00 L_ EM_P.='t_REI _0 (D_GI _3 7OO i eoo I7 i _x_ Fig. 37---Cooling _.o i Charging Chart, 50JX 048 Un_t__ Fig. 38--Cooling '>6 Charging Chart, 50JX 060 Un=_s3_ _FEEDERTUBE DEFROST THERMOSTAT Fig. 40_Defrost Fig. 39_Refrigerant Circuit C99097 2? Thermostat C99092 Table 11_ooling and Heating Troubleshooting Chart REMEDY CAUSE SYMPTOM Power Failure Compressor and outdoor fan will not start Call power company Fuse b_own or circuit breaker tnpped Replace fuse or reset circuit breaker Defective thermostat, contractor, control relay or defrost board Replace component insufficient transformer, Determine line vofiage incorrect or faulty widng Thermostat Lower thermostat temperature setting too high Faulty widng or loose connections circuit in compressor Determine cause Replace compressor Defective run capacitor, overload, or PTC )ositive temperature coefficient) thermistor Determine cause and replace Determine cause and replace One leg of 3-phase Scroll compressor is rotating in the wrong direction Defective compressor Replace Insufficient Determine cause and correct Determine cause and correct line voltage Defective run/start capacitor, relay Defective thermostat ovedoad or start Restriction Locate restriction (Continued suction pressure system, shown and on nameplate cause system cause and correct and remove Replace filter Decrease for load load or increase unit size Reset thermostat set too low Locate leak, repair, and recharge charge Leaking valves in compressor Replace compressor Frosted coil with incorrect Check defrost time settings Reset as necessary Check defrost temperature switch Replace as necessary defrost operation Air in system Recover refdgeraet, and recharge Outdoor coil dirty or restdcted Clean coil or remove restdction Oirty air filter Dirty indoor or outdoor coil Replace filter Clean coil Refrigerant Recover excess refrigerant overcharged evacuate system, Recover refrigerant, evacuate system, and recharge Air in system or recirculafing Determine cause and correct Indoor or outdoor air restricted or air short-cycling Determine cause and correct Low refrigerant charge Check for leaks, repair and recharge Compressor Replace compressor Restriction the Determine cause and replace Replace Determine in refrigerant evacuate determine Damaged reversing valve (Heat) Indoor air restdcted Excessive and by reversing unit Replace thermostat operates continuously low to the to capacities Low refrigerant too of rotation leads refrigerant, Jnit undersized pressure direction power recharge Thermostat Head the 3-phase Recover Dirty air filter Excessive head pressure Correct Refdgerant overcharge or undercharge Faulty outdoor-fan motor or capacitor Compressor co- Replace fuse or reset circuit breaker Determine cause power dead Blocked outdoor coil Compressor cyetes (other than normally satisfying thermostat) Check widng and repair or replace Compressor motor humeri out, seized, or internal ovedoad open Defective run capacitor, ovedoad, or PTC (positive temperature efficient) thermistor Three-phase scroll compressor (size 030060 units) makes excessive noise, and there may be a low pressure differential setting below room DO NOT bypass this compressor time delay-wait for 5 minute until fime-delay relay is de-energized Units have a 5-minute time delay Compressor will not start but condenser fan runs cause and correct Check winng diagram and rewire correctly valves leaking Remove restriction in liquid tube (Heat) Outdoor coil frosted Move timer on control board to 30 minute between defrost cycles (Cool) High Heat load Check for source and eliminate Compressor Replace compressor valves leaking Reversing valve hung up or leaking internally Replace valve Refrigerant overcharged Recover excess refrigerant next page) 28 Table 11_ooling and Heating SYMPTOM Troubleshooting Chart CAUSE REMEDY (Cool) Dirty air filter Replace filter (Heat) Outdoor coil frosted Move timer on control hoard to 30 minute between defrost cycles Low refrigerant charge Suction pressure Metedng too low (Cool) Temperature runs but outdoor fan does not IFM* does not run IFM* operation • tFM-Indoor is intermittent Increase air quantity Check filter-replace if necessary Reset thermostat coil airflow too low in conditioned area (Cool) Outdoor ambient below 40 ° F install low-ambient Field-installed filter-drier Replace restricted Check condition of relay on board Replace il necessary insufficient Determine Properly tighten blower wheel to shaft voltage at motor not propedy sealed Connectors With thermostat in off state, the voltage on G, Y1 ,Y, Y2, W with respect to common, should be 1/2 of actual low voltage supply If measured voltage is more than 1/2, the thermostat is incompatible with motor If voltage is less than 1/2, the motor has failed Water ddpping Verify proper dnp loops in connector wires Connectors into motor Gently pull wires individually cdmped into the housing not firmly sealed INFORMATION No ............................................................................................................................................................. Serial No .............................................................................................................................................................. Date ..................................................................................................................................................................... Technician Job ........................................................................................................................................................... Location ........................................................................................................................................................... IL PRE-START-UP __ Vedfy that __ Remove all packing __ Vedfy __ Check all electdsal __ Check that indoor __ Verify __ Check all shipping that materials connections is installed per and terminals (evaporator) propeller been removed bolts and brackets connection unit installation fan wheel have holddown that condensate from unit per installation installation instructions instructions for tightness air filter is clean and in place is level for location in housing and setscrew tightness IlL START-UP Supply Voltage: L1-L2 L2-L3 Compressor L2 Amps: L1 L3-L1 L3 Indoor Fan Amps: TEMPERATURE Outdoor-Air Return-Air Temperature: DB Temperature: DB WB Heat Pump Supply Air: Electdc Heater Supply Air: PRESSURES Refngerant Suction Refrigerant Discharge should snap easily; do not force Allow a few minute for motor to shut oft Start-up checklist (REMOVE AND STORE IN JOB FILE) Model cause and correct Motor programmed with a delay profile Fan Motor I, PRELIMINARY kit NC (normally closed) contacts on defrost board open Blower wheel not secured to shaft Power connectors IFM* runs when it should be off Check for leaks, repair and recharge Remove source of restnction device or low side restricted (Cool) Insufficient Compressor (Cont'd) psig psig __ Verify Refrigerant charge __ Verify that 3-phase scroll compressor using charging tables is rotating in correct direction 29 to be sure they are 30 31 Copyright 2002 CARRIER Manufacturer Corp. * 7310 W Morris St. • Indianapolis, reserves PC 101 the right to discontinue, Catalog No. 535-CO072 IN 46231 50jsjx4si or change at any time, specifications Printed in U.S.A. Form or designs without 50JS,JX-4SI 7/02 notice and without incurring Pg 32 Replaces: obligations. 50JS,JX-2SI & 3SI