Carrier 50JX060300, 50JX048300, 50JX030300, 50JS048300, 50JS036300 Installation Guide

...

HEA33NG & COOLING

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50JS, 50JX

Single-Packaged Heat Pump Units

Installation, Start-Up,

and Service Instructions

NOTE: Read the entire instruction manual before starting the

installation.

TABLE OF CONTENTS

SAFETY CONSIDERATIONS ..................................................... t

INTRODUCTION .......................................................................... 2

RECEIVING AND INSTALLATION .......................................... 2

Check Equipment ...................................................................... 2

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

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

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

ROOF CURB ....................................................................... 2

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

GROUND MOUNT ............................................................ 2

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

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

INSPECTION ...................................................................... 2

INSTALLATION ................................................................ 2

Select and Install Ductwork ..................................................... 4

CONVERTING HORIZONTAL DISCHARGE UNITS TO

DOWNFLOW (VERTICAL) DISCHARGE UNITS ......... 5

Provide for Condensate Disposal ............................................. 6

Install Electrical Connections ................................................... 7

HIGH-VOLTAGE CONNECTIONS ................................ 10

ROUTING POWER LEADS INTO UNIT ...................... 10

CONNECTING GROUND LEAD TO GROUND LUG. 10

ROUTING CONTROL POWER WIRES (24-V) ............ 13

SPECIAL PROCEDURES FOR 208-V OPERATION ...15

PRE-START-UP .......................................................................... 17

START-UP ................................................................................... 17

Check for Refrigerant Leaks .................................................. 17

Start-Up Adjustments .............................................................. 17

CHECKING COOLING AND HEATING

CONTROL OPERATION ................................................. 17

CHECKING AND ADJUSTING REFRIGERANT

CHARGE ........................................................................... 18

REFRIGERANT CHARGE .............................................. 18

NO CHARGE .................................................................... 18

LOW CHARGE COOLING ............................................. 19

TO USE COOLING CHARGING CHARTS .................. 19

INDOOR AIRFLOW AND AIRFLOW ADJUST-

MENTS .............................................................................. 19

MAINTENANCE ......................................................................... 20

Air Filter .................................................................................. 21

Indoor blower and motor ........................................................ 21

OUTDOOR COIL, INDOOR COIL, AND

CONDENSATE DRAIN PAN ............................................... 22

Outdoor fan ............................................................................. 23

Electrical controls and wiring ................................................ 23

Reliigerant circuit ................................................................... 24

Indoor airflow ......................................................................... 25

Metering device ...................................................................... 25

Liquid line strainers ................................................................ 25

High Flow Valves ................................................................... 25

Time-delay relay ..................................................................... 25

Loss of charge switch ............................................................. 25

Check defrost thermostat ........................................................ 25

Defrost Thermostat ................................................................. 25

TROUBLESHOOTING ............................................................... 25

START-UP CHECKLIST ............................................................ 25

NOTE TO INSTALLER -- READ THESE 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.

C99001

Fig. 1--Model 50JS/50JX

SAFETY CONSIDERATIONS

Installation and servicing of air-conditioning equipment can be hazardous due to system pressure and electrical components. Only trained and qualified personnel should install, repair, or service

air-conditioning equipment.

Untrained personnel can perform ba.qic maintenance functions of cleaning coils and filters. All other operations should be performed

by trained service personnel. When working on air-conditioning equipment, observe precautions in the literature, tags, and labels

attached to the unit, and other safety precautions that may apply.

Follow all safety codes. Wear safety glasses and work gloves. Use

quenching cloth for unbrazing operations. Have fire extinguisher

available for all brazing operations.

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

PC 101 CatalOg No. 535-00072 Printed in U.S.A. Form 50JS,JX-4SI Pg 1 Replaces: 50JS,JX-2SI & 3SI

Improper installation, adjustment, alteration, service, mainte- nonce, or use can cause explosion, fire. electric shock, or other occurrences, which could cause serious injury or death

or damage your property. Consult a qualified installer or

service agency for information or assistance. The qualified installer or agency must use only factory-authorized kits or accessories when modifying this product.

Recognize safety information. This is the safety-alert symbol/_. When you see this symbol on the product or in instructions or manuals, be alert to the potential for personal injury.

Understand the signal words -- DANGER, WARNING, CAU

TION, and NOTE. Danger identifies the most serious hazards,

which will result in severe personal injury or death. Warning

indicates a condition that could cause serious personal injury, or death. Caution is used to identify unsafe practices, which would result in minor personal injury or product and property damage.

NOTE is used to highlight suggestions which will result in enhanced installation, reliability, or operation.

1. The power supply (volts, phase, and hertz) must correspond to that specified on unit rating plate.

2. The electrical supply provided by the utility must be sufficient to handle load imposed by this unit.

3. This installation must confortu with local building codes and with NEC (National Electrical Code). Refer to provincial and

local plumbing or w,'t_te water codes and other applicable local codes.

Before performing service or maintenance operations on system, turn off main power to unit. Turn off accessory heater power switch if applicable. Electrical shock could cause severe injury or death.

INTRODUCTION

The 50JS and 50JX heat pumps are fully self-contained and designed for outdoor installation (See Fig. 1). Standard units are

shipped in a horizontal-discharge configuration for installation on a ground-level slab. Units can be converted to downflow /vertical) discharge configurations for rooftop applications.

RECEIVING AND INSTALLATION

Step 1---Check Equipment

IDENTIFY UNIT The unit model number and serial number are stamped on the unit

identification plate. Check this information against shipping pa- pers. INSPECT SHIPMENT

Inspect for shipping damage while unit is still on shipping pallet. If unit appears to be damaged or is torn loose from its anchorage, have it examined by transportation inspectors before removal. Forward claim papers directly to transportation company. Manu facturer is not responsible for any damage incurred in transit. Check all items against shipping list. Immediately notify the nearest Carrier Air Conditioning office if any item is missing. To prevent loss or damage, leave all parts in original packages until

installation.

Step 2--Provide Unit Support

ROOF CURB

Install accessory, roof curb in accordance with instructions shipped with curb (See Fig. 5). Install insulatiom cant strips, roofing, and

fln_thing. Ductwork must be attached to curb.

IMPORTANT: The gasketing of the unit to the roof curb is critical

for a watertight seal. Install gasketing material supplied with the roof curb. Improperly applied gasketing also can result in air leaks and poor unit performance.

Curb should be level to within 1/4 in. (See Fig. 61. This is necessary for unit drain to function properly. Refer to accessory

roof curb installation instructions for additional information as required.

SLAB MOUNT 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 extend approximately 2 in. beyond the casing on all 4 sides of the

unit. Do not secure the unit to the slab except when required by local codes.

GROUND MOUNT The unit may be installed either on a slab or placed directly on the

ground if local codes permit. Place the unit on level ground prepared with gravel for condensate discharge.

Step 3---Provide Clearances

The required minimum service clearances are shown in Figs. 2 and

3. Adequate ventilation and outdoor air must be provided. The outdoor fan draws air through the outdoor coil and discharges it through the top fan grille. Be sure that the fan discharge does not

recirculate to the outdoor coil. Do not locate the unit in either a

corner or under an overhead obstruction. The minimum clearance

under a partial overhang (such as a normal house overhang) is 36 in. above the unit top. The maximum horizontal extension of a partial overhang must not exceed 48 in. For extended overhangs,

provide a minimum clearance of 48 in.

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.

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 carpeting or other combustible materials. Slab-mounted units should be at least 4 in. above the highest expected water and runoff

levels. Do not use unit if it has been under water.

Step 4--Rig and Place Unit

Rigging and handling of this equipment can be hazardous for many reasons due to the installation location (roofs, elevated structures,

etc.) Only trained, qualified crane operators and ground support staff

should handle and install this equipment. When working with this equipment, observe precautions in the

literature, on tags, stickers, and labels attached to the equipment, and any other safety precautions that might apply.

Follow all applicable safety codes. Wear safety shoes and work gloves.

INSPECTION

Prior to initial use, and at monthly intervals, all rigging brackets and straps should be visually inspected for any damage, evidence

of wear, structural deformation, or cracks. Particular attention

should be paid to excessive wear at hoist hooking 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 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 spreader bar of sufficient length to protect unit from damage.

/-. [VAP0_AT_ C01t

"l TOP VIEW

UNIT

50JS018 50JS024 5OJSO30

50JS036 50JS042

50JX024 5OJXO30 50JX036

REOt,qRE3 _/JE,_*_CES TO _TIm.E MAIl_ I_OUIRED CLE/g_k_£ FOff O_A]I_N AM) S_5_'K:IN_

lop ,D_ UNiT 355 $ il4 00] E_p C_(L AC_[_S SID[ 91_ 0 1)_ 00)

D_CT SI_E OF UNII 5O 8 [? 06] POW[_ [NIR_ S_[ _14 0 [35 00) _1_[ Op_TI DUCT_ 355 _ 114 00] _[_£[PT fOR N[C _[QU_[_[_TS)

80flO_ _ UNIT 12 f [O 50] UNIF TOp 9r4 0 [)6 00) _LECI_IC _E_I P_EL 914 _ [36 _0] _l_f _PPOSk([ 9UCT5 9_ 0 13_ 00(

NEC F_OUR_D _

B[TW[EN _!l_ POW(_ ENT_1 51D[ _ _ [4l 00) _T_lEM TH[H Sy_T_ Pf_fOR_ANCE _YBE CO_RO_I_ED

UNll A_D BLO_ O_ ,_NCR_I[ WALtS AND OIH[R

GROUNDID BU_FAC[S PO_[I [_T_Y BID[ lOB_ _ t42 OOl DIMENSIONS IN [ ] ARE IN INCHES

kt4LLIMETf_S [IN] MILL;_TIRS [IN)

DUCT P_N[L 3O4 _ IIZ 00]_

HILtlM[I[RS (_) ,MIN_MU_ DIST_NC[S IF _N_T 15 PL_ED L[55 l_ _04 _ [1_ _0_ _O_ WAtL

--_)i --

LEFT SIDE VIEW ,_ o_o_s]., r

x zz o Io _;I oP

ELECTRICAL CHARACTERISTICS

FRONTVIEW

UNIT WEIGHT UNIT HEIGHT

IN. (MM)

Ib kg "A"

208/230-1-60 283 128.4 37.02 (940.3) 208/230-1-60 289 131.1 39.02 (991.1)

208/230-1-60, 208/230-3-60 287 130.2 39.02 (991.1) 208/230-1-60, 208/230-3-60, 460-3-60 291 132.0 37.02 (940.3) 208/230-1-60, 208/230-3-60, 460-3-60 323 146.5 37.02 (940.3)

208/230-1-60 299 135.6 41.02 (1041.9)

208/230-1-60, 208/230-3-60 320 145.2 37.02 (940.3) 208/230-1-60, 208/230-3-60, 460-3-60 328 148.8 37.02 (940.3)

RIGHT SIDE VIEW

19.5 (495.3)

19.7 (500.4)

19.5 (495.3)

19.7 (500.4)

19.0 (482.6)

19.7 (500.4)

CENTER OF GRAVITY

13.7 (348.0)

13.9 (353.1)

13.7 (348.0)

14.0 (355.6)

13.7 (348.0)

14.0 (355.6)

Fig. 2--50JS018-042/50JX024-036 Unit Dimensions

IN. (MM)

IO 2_1

C00137

15.0 (381.0)

13.0 (330.2)

16.0 (406.4)

17.6 (447.0)

16.5 (419.1)

2. Position the lifting bracket _-¢sembly around the b_e of the

unit. Be,_ure the strap does not twist.

3. Place each of the 4 metal lifting brackets into the rigging holds in the composite pan.

4. Thread lifting bracket strapping around bottom perimeter of unit as follows:

a. Open lever of tension buckle (ratchet typel. b. Feed strapping through tension buckle as shown in Fig. 8.

c. Pull strapping through tension buckle unit taut.

d. Snap lever down to lock strap in tension buckle. To release

strapping, squeeze safety latch, lift lever, and pull webbing outward.

5. Tighten the tension buckle until it is taut. Lifting brackets must be secure in the rigging holds.

6. Attach field-supplied clevis or hook of sufficient strength to hole in the lifting bracket (See Fig. 9).

7. Attach the 2 safety straps directly to the clevis or hook at the

4 rigging brackets. DO NOT attach the safety straps to the

lifting brackets (See Fig. 9).

illti111illlllll'

WI IIIII

402 0 _NtNG

t TOP VIEW

RE_ ¢:I.,EARAiV_$TO CCI,_US_ MAlt-

TOp 1_ U_lf 355 6 [14 00]

DUCt 510£ OF UN)I 50 8 (20Q)

SIDE OPPOSIT[ OUCI_ 355 6 [14 OQ] BOfTO_ O( UNll IZ 7 {0 50] EL[CTRIC HEAT PANEL _14 _ [36 00)

BETWEEN UNITS POWER [NIRY SIDE 1066 8 [4Z O0] g_IT AND UNGROUNDED SURFACES PO_R [NTRf SlOi 914 0 [36 OO]

gNll AND BLOCK OR CONCp[I[ WALLS AND O(HER GROUNDED SURFACES POWER E_TRY SIDE 1066 8 [4_ 00)

MILLIMETERS tIN]

W)LLIMETERS tIN]

I(IiIIIIII I lit!IIIIII

oFoo c,........

14 6_ i 3_I 3

t i '

[43 BSI {i) _71 It) 8))

REAR VIEW

EV_P CO(L ACC{SS SIDE 91_ O [SG 00) PO_[R {NT_T SIOE 91_ _ [36 DOJ

[{XCEPF FO_ N[£ REOUIR_MENIS)

UNIT lop 914 _ [36 0_) S_OE OPPOSITE DUCTS 914 Q [)6 0_)

9UCf PANEL )04 8 [(_ 60)1

IMINIMUW OISIAHCESiF UNIT IS PLACED LESS [HAN 304 B [1_ 00] FROW (ALL

DIWEHSIONS IN {] ARt kN (NCHES

SYSTEWIHEN STSTE_ PERFORMA#CE WATBE COmPrOMISeD

188] plA _OLE

_ONI_0L [WIRy

"= i I

MILtIM[IERS (INI

LEFT SIDE VIEW

UNIT

50JS048 5OJSO6O 5OJX042

50JX048 5OJX060

ELECTRICAL CHARACTERISTICS

208/230-1-60, 208/230-3-60, 460-3-60 208/230-1-60, 208/230-3-60, 460-3-60 208/230-1-60, 208/230-3-60, 460-3-60

208/230-1-60, 208/230-3-60, 460-3-60 208/230-1-60, 208/230-3-60, 460-3-60

UNIT WEIGHT

Ib kg

353 160.1 418 189.6

350 158.8 315 170.1 428 194.1

Fig. 3---50JS048-060/50JX042-060 Unit Dimensions

8. Position lifting point directly over the unit's center of gravity.

9. Lift unit. When unit is directly over the roof curb, remove the 2 safety straps. Lower the equipment onto the roof curb.

Step _Select and Install Ouctwork

The design and installation of the duct system must be in accordance with the standards of the NFPA for installation of

non-residence type air conditioning and ventilating systems, NFPA

90A or residence type, NFPA 90B and/or local codes and ordinances.

[o _o)

RIGHTSIDE VIEW

UNIT HEIGHT

IN. (MM)

38,98 (990.2)

38.98 (990.2)

40.98 (1040.9)

42.98 (1091.7)

19.9 (505.5)

Select and size ductwork, supply-air registers, and return air _milles according to ASHRAE (American Society of Heating, Refrigera- tion, and Air Conditioning Engineers) recommendations.

The unit has duct flanges on the supply- and return-air openings on the side of the unit.

When designing and installing ductwork, consider the following:

CENTER OF GRAVITY

IN. (MM)

15.7 (398,8)

15.7 (398.8)

000136

17.0 (431.8)

16.6 (421.6)

18.0 (487,2)

17.6 (447,0)

1 2

CORNER WEIGHTS (SMALL CABINET)

Unit 18 24 30 36 42

o 1=3

• Comer Weight 2

-o

:_ Comer Weight 3

For vertical supply and return units, tools or parts could drop into ductwork and cause serious injury or death. Install a 90 degree turn in the return ductwork between the unit and the conditioned space. If a 90 degree elbow cannot be installed, then a grille of sufficient strength and density should be installed to prevent objects from falling into the conditioned

space. Units with electric heaters require 90 degree elbow in supply duct.

1. All units should have field-supplied filters or accessory filter

2. Avoid abrupt duct size increases and reductions. Abrupt

IMPORTANT: Use flexible connectors between ductwork and unit to prevent tr,'msmission of vibration. Use suitable gaskets to

ensure weather tight and airtight seal. When electric heat is installed, usd fireproof canvas (or similar heat resistant material) connector between ductwork and unit discharge connection. If

flexible duct is used, insert a sheet metal sleeve inside duct. Heat resistant duct connector (or sheet metal sleeve) must extend 24-in. from electric heater element.

3. Size ductwork for cooling air quantity (cfm). The minimum

Total Weight 283 289 287 291 323

Comer Weight 1 65 67 66 67 83

53 56 54 55 55

103 104 105 106 107

61 62 62 63 78

Corner Weight 4

CORNER WEIGHTS (Small Cabinetl

Unit 24 _O _{_

Total Weiaht -- --

Comer Weiaht 1 63 63 64 -- -- Comer Weight 2 62 74 76 -- --

Comer Weight 3 56 56 58 -- -- Comer Weight 4 118 127 130 -- --

299 320 328

Fig. 4---Corner Weights (in Pounds)

rack installed in the return-air side of the unit. Recommended sizes for filters are shown in Tables 1 and 2.

change in duct size adversely affects air performance.

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.

CORNER WEIGHTS (LARGE CABINET)

03 Total Weight 353 418 --

Comer Weight 1 76 90 --

i nit 48 60 --

x Total Weinht 350 375 428

I °

m Comer Weiaht 1 75 81 92

3; Comer Weight 3 95 102 116

l _ Comer Weight 2 49 52 60

4. Seal, insulate, and weatherproof all external ductwork. Seal, insulate and cover with a vapor barrier all ductwork passing through conditioned spaces. Follow latest Sheet Metal and Air Conditioning Contractors National Association ISMACNA) and Air Conditioning Contractors Association {ACCA/mini- mum installation standards for residential heating and air conditioning systems.

5. Secure all ducts to building structure. Flash, weatherproof, and vibration-isolate duct openings in wall or roof according to good construction practices.

CONVERTING HORIZONTAL DISCHARGE UNITS TO DOWNFLOW (VERTICAL) DISCHARGE UNITS

Before performing service or maintenance operations on

system, turn off main power to unit and install lockout tag. Turn off accessory heater power switch if applicable. Elec-

trical shock could cause serious injury or death.

1. Open all electrical disconnects and install lockout tag before

starting any service work.

2. Remove side duct covers to access bottom return and supply knock outs.

Comer Weight 2 49 58 -- Comer Weight 4 132 t 56 --

Comer Weight 3 96 t 14 --

CORNER WEIGHTS tLaroe Cahinel)

Comer Weight 4 131 t40 160

Unit 42 48 60

Tf ° '_ •

r!_lk,I-.I,1,11d_1

NOTE: These panels are held in place with tabs similar to an

electrical knockout.

3. Use a screwdriver and hammer to remove the panels in the bottom of the composite unit base.

C00071

VAC unrl

base "_

_ _(NOTE A) _

supplied _

Roofir_ material supplied)

field suPPlied m

field su_l_d

_Cant strip field supplied

Ir_ulaUon (field

eu_i work

Roof Curb for Small Cabinet

Note A: When unit mounting screw is used,

retainer bracket must also be used.

Roof Curb for Large Cabinet

Note A: Whenunitmounting screwis used,

retainerbracketmustalsobe used.

R/A S/A

Insulated Gasket around deck pan outer edge

C00076

UNIT SIZE

50JS018-042 50JX024-036

50JS048-060 50JX042-060

ODS CATALOG NUMBER

CPRFCURB006A00 CPRFCURS007A00

CPRFCURB008A00 CPRFCURB009A00

IN. (MM)

8 (203)

14 (386)

8 (203)

14 (356)

IN. (MM)

11(279) 11(279)

16 3/16 (411) 16 3/16 (411)

IN. (MM)

161/2 (419)

17 3/8 (441) 17 3/8 (441)

IN. (MM)

28-3/4 (730) 28-3/4 (730)

40-1/4 (1022) 40-1/4 (1022)

NOTES:

1. Roof curb must be set up for unit being installed.

2. Seal strip must be applied, as requiRd, to unit being installed.

3. Dimensions in ( ) are in millimeters.

4. Roof curb is made of 16-gage steel.

5. Table lists only the dimensions, per part number, that have changed.

6. Attach ductwork to curb (flanges of duct rest on curb).

7. Insulated panels: t-in. thick fiberglass 1 Ib density.

8. Dimensions are in inches.

9. 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 Curb Dimensions

4. Ensure the side duct covers are in place to block off the

horizontal air openings.

NOTE: Avoid abrupt duct size increases and reductions. Abrupt change in duct size adversely affects air pedormance.

Step C0---Provide for Condensate Disposal NOTE: Ensure that condensate-water disposal methods comply

with local codes, restrictions, and practices.

The units dispose of condensate through a 3/4 in. NPT female fitting that exits on the compressor end of the unit. Condensate water can be drained directly onto the roof in rooftop installations (where permitted) or onto a gravel apron in ground level installa- tions. Install a field-supplied condensate trap at end of condensate connection to ensure proper drainage. Make sure that the outlet of

the trap is at least 1 in. lower than the drain-pan condensate

Fig. 6_Unit Leveling Tolerances

2 w

EVA,RCOIL COND.COIL

Fig. 7--Slab Mounting Detail

MAXIMUM ALLOWABLE

DIFFERENCE (in.)

A-B B-C A-C

1/4 1/4 1/4

C99065

C99096

Fig. 8---Threading Belt

connection to prevent the pan from overflowing. Prime the trap with water. When using a gravel apron, make sure it slopes away

from the unit. If the installation requires draining the condensate water away

from the unit. install a field-supplied 2-in. trap at the condensate connection to ensure proper drainage. Condensate trap is available as an accessory or is field-supplied. Make sure that the outlet of the trap is at least 1 in. lower than the unit drain-pan condensate connection to prevent the pan from overflowing. Connect a drain trough using a minimum of field-supplied 3/4 in. PVC or 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 downward at a slope of at least 1 in. every 10 ft. of horizontal run. Be sure to check the drain trough for leaks. Prime the trap at the beginning of the cooling season start-up.

FEED

C99067

Step 7--Install Electrical Connections

The unit cabinet must have an uninterrupted, unbroken electrical ground to minimize the possibility of personal

injury if an electrical fault should occur. This _ound may consist of an electrical wire connected to the unit ground lug

in the control compartment, or conduit approved for electrical ground when installed in accordance with NEC, ANSI/NFPA

American National Standards Institute/National Fire Protec tion Association (latest edition) (in Canada, Canadian Elec- trical Code CSA C22.1 ) and local electrical codes. Failure to

adhere to this warning could result in serious injury or death.

UNIT SIZE NOMINAL CAPACITY (ton) OPERATING WEIGHT (lb.)

COMPRESSOR QUANTITY

TYPE

REFRIGERANT

REFRIGERANT METERING DEVICE

Refrigerant (R-22) Quantity (Ib,)

ORIFICE ID (in.)

ORIFICE OD (in.)

OUTDOOR COIL

Rows,.. Fins/in,

Face Area (sq, ft.)

OUTDOOR FAN

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

C00139

Fig. 10_Typical Installation

Table 1--Physical Data

50JS018 50JS024 50JS030 50JS036

1-1/2 2 2-1/2 3

283 289 287 291

RECIPROCATING COMPRESSOR I

6.5

0.053

0.040

1...17

10.2

2400 2400 2400 2800 3300

22 22 22 22 22

1/8 (825) 1/8 (825) 1_ (825) 1_ (1100) 1_ (1100)

2...15 2...15 3...15 3..,15 4...15

3.7 3.7 3.7 3.7 4.7

700 800 1000 1200 2000

IOXlO 10X10 10X10 11X10 11X10

20X20X1 20X20X1 20X2OX1 20X24X1 24X30X1

5.3

0.061

0.035 (2)

1...17

12.0

5.6

0.068

0.042 (2)

1...17 12,0

R-22

AccuRate_

7.6

0.078

0.046 (2)

2...17

10.3

50JS042 50JS048 50JS060

3-1/2 4 5

323 353 418

SCROLL COMPRESSOR

8.0 7.85

0.078 0.088

0.052 (2) 0.057 (2)

2...17 2...17

10.3 11.6

2400 3300

22 22

1/8 (625) 1/4 (1100)

4..,15 3...15

3.7 4.7

1250 1600

11X16 11X10

3/4 3/4

24X30X1 24X30X1

9.3

0,093

0.061 (2)

2...17

11.6

Table 2--Physical Data

UNIT SIZE

NOMINAL CAPACITY (ton)

OPERATING WEIGHT (lb.)

COMPRESSOR QUANTITY

TYPE

REFRIGERANT

REFRIGERANT METERING DEVICE

Refrigerant (R-22) Quantity (lb.)

ORIFICE ID (in,)

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.

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 filters must not exceed 0.08 in. wg.

50JX024 50JX030 50JX036 50JX042

2 2-1/2 3 3-1/2

299 320 328 350

5.5 6.4 7.0 10.8

0.065 0.073 0.076 0.080

0.037 (2) 0.043 (2) 0.040 (2) 0.052 (2)

1...17 2...17 2-.17 2.,,17

13.7 10.3 10.3 13.7

2350 2350 2800 2800

22 22 22 22

1/8 (825) 1/8 (825) 1/4 (1100) 1/8 (825)

3,,.15 3.,.15 4...15 4-.15

3,7 3.7 3.7 4.7

800 1000 1200 1400

10X10 10X10 10X10 11X10

1/4 1/4 1/2 1/2

20X20X1 20X20X1 20X24X1 24X30Xl

SCROLL COMPRESSOR

R-22

AccuRate_

50JX048

375

10.1 12.3

0.088 0.093

0.057 (2) 0,063 (2)

2...17 2._17

13.7 15.7

3300 3300

22 22

1/4(1100) 1/4(1100)

4...15 4.,.15

4.7 5.7

1450 1750

11X10 11X10

1/2 1

24X30X1 24X30X1

50JX060

428

Table 3_Minimum Airflow for Reliable Electric Heater Operation (Cfm)

SIZE 50JS018 50JS024 50JS030 50JS036 50JS042 50JS048

AIR FLOW (CFM) 650 800 1000" 1200 1400 1600

• The 030 size models must be run on medium or highspeedwhen usedin conjunctionwith15 kwelectdc heat accessory

Table 4_Minimum Airflow for Reliable Electric Heater Operation (Cfm)

SIZE 50JX024 50JXO30 50JX036 50JX042 50JX048

AIRFLOW (CFM) 800 1000" 1200 1400 1600

* The 030 size modelsmust be runon medium or high speed when usedin conjunction with15 kw electdcheat accessory

50JS060

2000

50JXO6O

2000

L SEE DETAIL A

UNIT

Size

50JS018 50JS024 50JS03O 50JS036

50JS042 50JSO48 5OJS060

50JX024 50JX030 50JX036

50JX042 50JX048

50JX060

(36" 54"/

TIGHTEN STRAPPING SECURELY WITH TENS}ON BUCKLE

INSTALL SAFETY STRAPS TO RIGGING CLEVIS AT 4 RIGGING BRACKETS

PLACE RIGGING BRACKET ASSEMBLY {N 4 RIGGING HOLES AND iNSTALL TIE DOWN STRAP AROUND PERIMETER OF UNIT AN{] THROUGH SPACE IN BRACKET ASSEMBLY

MAXIMUM WEIGHT

INCLUDES SHIPPING SKID A

Ib kg in. ram.

305 138.4 19.5 495.3 311 141.1 18.5 469.9

309 140.2 19.5 495.3 313 142.0 19.5 495.3 345 156.4 19.5 495.3 375 170.1 20.5 520.7

440 199.6 19,5 4953

321 145.6 19.0 482.6 342 155.2 20.0 508 350 158.8 20.0 508

372 168.8 21.0 533.4 377 171.0 20.0 508 450 204.2 21.0 533.4

Fig, 9_Suggested Rigging

OETAIL A

SCALF 0250

C99075

in. mm.

16.75 425.5

16.75 425,5 1730 444.5

17.75 450.9

20.62 523.8

19.75 501.7

18.25 463.6

19.25 489

19.0 482.6

20.5 520.7

21.25 539.8

20.0 508.0

1" (25ram) MIN.

TRAP

OUTLET +

]

2" (50ram)

C99013

Fig. 12_ondensate Trap

Failure to follow these precautions could result in damage to the unit being installed:

1. Make all electrical connections in accordance with NEC ANSI/NFPA (latest edition) and local electrical codes

governing such wiring. In Canada, all electrical connec- tions must be in accordance with CSA standard C22.1

Canadian Electrical Code Part 1 and applicable local codes. Refer to unit wiring diagram.

2. Use only copper conductor for connections between field supplied electrical disconnect switch and unit. DO

NOT USE ALUMINUM WIRE.

3. Be sure that high-voltage power to unit is within operating voltage range indicated on unit rating plate. On 3-phase units, ensure phases are balanced within 2 percent. Consult local power company for correction of improper voltage and/or phase imbalance.

4. Insulate low-voltage wires for highest voltage contained within conduit when low-voltage control wires are in same conduit as high-voltage wires.

5. Do not damage internal components when drilling through any panel to mount electrical hardware, conduiL etc.

HIGH-VOLTAGE CONNECTIONS

The unit must have a separate electrical service with a field-

supplied, 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).

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 Instruc-

tions provided with the accessory for electrical service connec-

tions. Operation of unit on improper line voltage constitutes abuse and

may cause unit damage that could affect warranty.

MIN.

Horizontal Duct Covers

Fig. 11--50JX with Duct Covers On

(Unit Shown with Optional Louvered Grille)

ROUTING POWER LEADS INTO UNIT

Use only copper wire between disconnect and unit. The high- voltage leads should be in a conduit until they enter the duct panel;

conduit terntination at the duct panel must be watertight. Run the

high-voltage leads through the power entry knockout on the power

entry side panel. See Fig. 2 and 3 for location and size. When the

leads are inside the unit. run leads up the high-voltage raceway to the line wiring splice box (See Fig. 13-19). For single-phase units, connect leads to the black and yellow wives: for 3-phase units, connect the leads to the black, yellow, and blue wires (See Fig.

|8).

C99030

CONNECTING GROUND LEAD TO GROUND LUG Connect the ground lead to the chassis using the ground lug in the

wiring splice box ISee Fig. 18).

+ 22 hidden pages

Carrier 50JX060300, 50JX048300, 50JX030300, 50JS048300, 50JS036300 Installation Guide

Specifications and Main Features

Frequently Asked Questions

User Manual