Carrier 50JZ036310, 50JZ042300, 50JZ048300, 50JZ036300, 50JZ030310 Installation Guide

...

HFATUNG & COOLING

%isitx__ _.¢arrier.com

Installation, Start-Up and Service instructions

50JZ 7-t4 kW (024-048)

SingMe-Package 50Hz Heat Pump Units

with Puron® (R-410A) Refrigerant

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

TABLE OF CONTENTS

SAFETY < ONSIDERATIONS 1 Introduction 2

Receiving and Installation .............................................................. 2

(heck 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 ................................... 3

Inspection ..................................... 4

Installation .......................................... 4

Select and Install Ductwork ........................... 5

Converting Horizontal Discharge Units To

Downflow (Vertical) Discharge Units ................. 7

Provide for Condensate Disposal 7

Install Electrical Connections ................................................... 9

High-Voltage Connections .......................... 9

Routing Powm Leads into Lnit .................... 1l

Connecting Ground Lead to Ground Lug ............. 1l

Routing Control Power Wires (24-V) i 1

PRE-START-UP !4 START-UP 14

(beck f_r Refrigerant Leaks 14 Start-Up Adjustments 14

Checking Cooling and Heating Control Operation .......... 14

Checking and Adjusting Refi'igerant Charge .................... 16

Refi'igerant Charge ........................... 16

No ( harge .................................... !6

Low Charge Cooling ........................... 16

Heating Mode Change 16 To Use Cooling Charging Charts i6

Indoor Airflow and Airflow Adjustments ........................ 16

Defiost ( ontrol ....................................................................... 18

Quiet Shift ..................................... 18

Defiost ........................................ !8

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

Air Filter .......................................... 20

Indom Blower and Motor ........................... 21

Outdoor (oil, Indoor Coil, and Condensate D*ain......... 21

Outdoor Fan ...................................... 2l

Eleckical Controls and Wiring ...................... 22

Refrigerant Circuit ................................. 22

Indoor Airflow ................................... 22

PURON_R:Systems Items .......................... 22

System Infbnamtion .............................. 24

Phase Monitor Control .......................... 24

Loss of Charge S_itch 24 Check Defiost Them_ostat 24

TROL BLESHOOTING ............................................................... 24

Start°L p Checklist ........................................................................ 24

NOTE TO INSTALLER READ THESE INSTRUCTIONS CAREFULLY AND COMPLETELY befbre installing this unit.

Also, nmke sure the Owner's Manual and Se*vice Instructions are left with the unit afle* installation

SAFETY CONSIDERATIONS

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

Untrained personnel can perfbrm basic nmintenance 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 fbr unbrazing operations. Have fire extinguisher

available for all brazing operations.

Improper installation, adjustment, alteration, service, nmiute° nance, or use can cause explosion, fire, electric shock, or

other occurrences, which could cause serious injury or death or danmge your proper U. Consult a qualified installer or

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

Recognize safety information. This is the safhty-alert symbol/\. When you see this symbol on d'*e product or in instructions or manuals, be alert to the potential fbr personal injury

Understand die signal words DANGER, WARNING, (AU° 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 identif}' unsaf_ practices, which would result in minor personal injmy or product and property damage. NOTE is used to highlight suggestions which will result in enhanced installation, reliabili w, 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 toad imposed by this unit.

3. This installation must confbrm with local building codes and with IE( (International Electrical (ode). Refer to provincial

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

PC 101 Catalog No. 005-00027 Printed in U.S.A. Form 50JZ-C2SI Pg 1 7-02 Replaces: 50JZ-C1SI

Fig. 1--UNt 50JZ (50 Hz)

and local plumbing or _xaste water codes and other applicable local codes

Be%re per%rming 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

Puron (R-410A) systems operate at higher pressures than standard R=22 systems. DO not use R=22 service equipment or components on Pnron (R-410A) equipment. Ensure service

equipment is rated for Puron (R-4IOA)

INTRODUCTmON

The 50JZ (50 Hz) heat pump is fhlly selfocontained and designed fbr otttdoor installation (See Fig. 1) Standard units are shipped in a horizontal-discharge configuration for installation on a ground=

level slab Standard 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 nm'nher are stamped on the unit rating identification plate. Check this infbrmafion against ship= ping papers.

INSPECT SHIPMENT

Inspect tbr shipping damage while unit is still on shipping pallet

If unit appears to be damaged or is torn loose ti'om its anchorage, have it examined by transportation inspectors be%re removal. Fopxard claim papers directly to transportation company. Manu=

fitcmrer is not responsible fbr any damage incurred in transit.

Check all items against shipping list. Immediately notify the nearest ( mTier Air Conditioning once if any item is missing. To prevent toss or damage, leave all parts in original packages until

installation.

C99064

Step 2--Provide Unit Support ROOF ([RB

Install accessory roof curb in accordance with instrt/cfions shipped with curb. (See Fig. 5) Install insulation, cant strips, roofing, and flashing Ductwork must be attached to cuIS.

INPORTANT: The gasketing of the nnit to the roof cm:b 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 perfbrmance

Curb should be level (See Fig. 6) to within 1/4 in. (6.4 ram). This is necessa_" t'or unit &ain to fimction properly. Refkr to accessow-

roof curh installation instructions for additional infbrmation as required.

SLAB MOUNT

Place the unit on a solid, level concrete pad that is a minimum of 4 in. (102 ram) thick with 2 in. (51 ram) above grade. (See Fig. 7) The slab should extend approximately 2 in. (51 ram) 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 fbr condensate discharge.

Step a--Provide Clearances The required minimum service clearances are shown in Figs 2 and

3 Adequate ventilation and outdoor air must be provided. The outdoor fire &aws air through the outdoor coil and discharges it through the top fYn grill. 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 nom_al house overhang) is 48 in. (1219 ram) above the unit top. The maximum horizontal extension of a partial overhang must not exceed 48 in. (1219 ram).

IMPORTANT: Do not restrict outdoor airflow. An air restriction at either the outdoor=air inlet or the fire discharge may be

detrimental to compressor tifk Do not place the unit where water, ice, or snow fi'om an overhang

or roof will damage or flood the unit Do not install the unit on

il..........................r LLLo vE l

406 5

[_6 60]

EVAP l

TOP VIEW

RE'G_RED CLEARANCES TO COMBtIS_BLE MA'n-

TOP OF UNIT ............................................. 3556 [1400]

DUCT SiDE OF RNIT ......................................... 508 {200]

SIDE OPPOSITE DUCTS ..................................... 3556 [14001

BOTTOM OF UNIT ............................................ 127 {0501

ELECTRIC HEAT PANEL ..................................... 9144 [36001

NED. REQUIRED CLEARANCE&

BETWEEN UNITS, POWER ENTRY SIDE ........................ 10668 [4200]

UNiT AND UNGROUNDED SORTADES, POWER ENTRY SIDE .......... 914¸0 [3600]

UNiT AND BLOCN OR CONCREIE WAILS AND OTHER

GROUNDED SURFACES, POWER ENTRY SIDE .................. 1066¸8 [4200]

{31 44/

_IEIR _NTRY

S£RV_CE PORTS

• 11939

loiH

i" -n

MiLLiMETERS [iN]

MIllIMETERS [IN]

[47 O0

4020 [_583]

SUPP{ Y DUCT

OPENING

i ;

177

{463]

}

885 ....................................

[3¸48}

D_EeN_LEARANG_TO_ ORERM_'_ON AND SERVICINB

EVAP COIL ACCESS SIDE .................................. 914¸0 [36¸001

POWER ENTRY Si0E ........................................ 914¸0 [36.001

(EXCEPT HOH NEE REOUIREWENTS)

UNIT TOP ................................................ 914¸0 [36¸001

SiDE OPPOSITE 00GTS ..................................... 914¸0 [36¸001

DUCT PANEL .............................................. 304¸8 [12061,

*NININON DISTANCES:IF UNiT IS P{ACED LESS THAN 3048 [JRO0] FRON WALL

SYSTEM,IHEN SYSIEN PER;ORNANCE NAY_E COMPROMISER

24£¸6 I983]

_5505

REAR VIEW

t I

[2167]

NILLIMETERS [IN1

RETURN DUCT OPENING

[9831

i I i _

[168]

[2851

_12851

13212]

LCO_PRESSOR, BLOWER, EtECJRIC HEAY

& ELECTRICAL ACCESS PANgL

................................................._2263 ..........................................................

[48 281

LEFT SIDE VIEW FRONTVIEW RIGHT SIDE VIEW

UNiT

80JZ024

80JZO30 50JZ036

ELECTRICAL CHARACTERiSTiCS

400-3-50 400-3-50

400-3-50

UNIT WE_GHT

Ib kg

299 135.6 320 145.2

328 148.8

Fig. 2--50JZ024-036 Unit Dimensions

carpeting or other combustible materials Slab=mounted malts should be at least 4 in. (101.6 ram) abo_e the highest expected

v, ater 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 hazardmEs %r many

reasons due to the installation location (roo£q, elevated structures,

etc,)

-}..LO..i

..62 l ' _

.......i [IO 87} 13_ / ........ ,

7 4 _-- 445 { 75] DIA K 0

{4 81]

C00160

UNIT HEBGHT

IN.(MM)

"A"

35.02 (889.5)

37.02 (940.3)

Only trained, qnalified crane operators and ground support staff should handle and install this equipment,

When working with this equipment, obseza'e precautions in tlae 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.

19.0 (482.6) 18.3 (463.6) 16.0 (406.4)

20.0 (508.0) 19.3 (489.0) 17.6 (447.0)

20.0 (508.0) 19.0 (462.6) 16.5 (419.1)

CENTER OF GRAVITY

IN.(MM)

X Y Z

. FULL LOUV[R

EVAP c011

° /

CO_l) COil

TOP VIEW

REQ4JIRB_CLEARANCES TO COr_BIJSTIBLE MAll..

lOP OF UNIT ........................................... 3556 [1400]

DUCT SIDE OF UNIT ......................................... 508 [?OO]

SIDE OPPOSITE DUCTS ..................................... 355¸6 [14OO]

_OTTOM OP UNIT ............................................ 127 [OSO]

ELECTRIC NEAT PANEl..................... 9}4¸4 {36 00}

NEC. REel]RED CLEARANCES.

BETWEEN UNITS, POWER ENTRY SIDE ........................ 10668 [420DI

UNIT AND UNGROUNDED SURFACES, POWER ENTRY SIDE .......... 9}4¸0 [3DOO]

UNIT AND BLOCK OR CONCRETE WALES AND OTHER

GROUNDED SURFACES, POWER ENTRY S{DE ...... {066 8 {42 00]

.............................................I090_ ............................................

[4294]

FULL _OUV#R

SERVICE PORTS

F_E_D [NTRY_

....................................... I

MILLIMETERS IIN]

MILL!ME]ENS [IN]

................................................ 11_39 ...................................................

[47 00)

4020 [5831

117 7

SUPPLY RETURN

DUCT DUCT

OPEN NG OPEN NG

,il'

l i J

_81,2 _3AYS

1S,431 IIS 6YI

_351 ? _ _331,2

I13_DSI I13_831

REAR VIEW

REQUIRED CLEARANCE FOR OPERATION AND SB_IVICING

EVAP CO{L ACCESS SIDE ................................. 914¸0 [36¸001

POWER ENTRY SIDE ........................................ 914D [36¸001

{EXCEPT FOR NED REQUIREMENTS}

UNIT TOP ................................................ 9140 [36¸00I

SIDE OPPOSITE DUCTS ............................... 914¸0 [36¸001

DUCT PANZL ............................. 304 8 {I?OO}_

_MINIMNM D!STANDES:IF UNIT IS PLACED LESS THAN 3048 [!DOO] FROM WALL

SYSTEM,THEN SYSTEM PERFORMANCE MAYDE COMPROMISED

DIMENSIONS IN {} ARE IN INCHES

MILLIMETERS [IN}

FULL LOUVZR

620 2

'14.'i

[48 28

FRONT VIEW

UNIT

50JZ048

ELECTRICAL CHARACTERiSTiCS IN. (Mivl}

400-%50 355 161.0 40.98 (1040.9)

[NSPE(TION

Prior to initial use, and at monthly intervals, all rigging brackets

and straps should be visually inspected for any damage, evidence

of wear, structural deformatiom or cracks. Pa_1icular attention

should be paid to excessive wear at hoist hooking points and load

support areas. Brackets or straps showing any kind of wear in these

areas must not be used and should be discarded.

[NSTALLATION

1, Remove unit li'ona shipping carton. Leave top shipping skid on

the unit as a spreader bar to prevent the rigging straps flora

UNIT WEIGHT UNIT HEIGHT

tb kg "A"

Fig. 3--50JZ 048 Unit Dimensions

44 5 [{ 75101A K O_

POWER _NTRY

.............. 4

0 161

'2;'- L_

[4 81 RIGHT SIDE VIEW

CENTER OF GRAVITY

IN. {MN)

X Y Z

200 (508.0) 21.3 (539.8) 18.0 (457.2)

damaging the unit. If the wood skid is not available, use a spreader bar of sufficient length to protect unit fi'orn damage.

Position the ti_ing bracket assembly around the base of the unit. Be sure the strap does not twist

Place each of the 4 metal lifting brackets into the rigging holds in the composite unit base

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

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

C00161

4 x 3

CORNER WEIGHTS (SMALL CABRNET)

c Pull strapping through tension buckle unit taut. d. Snap lever down to lock strap in tension buckle. To release

strapping, squeeze safkty latch, lift lever, and pull webbing outward

5. Tighten the tension buckle until it is taut Lifting brackets n-rest 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 safkty straps directly to the clevis or hook at the 4 rigging brackets. DO NOT attach the safkty straps to the

lifting brackets. (See Fig 9)

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 safBty straps. Lower the equipment onto d3e roof curb

10. After the unit is placed on the roofcurb or mounting pad, remove [he top crating.

Step 5--Select and hstaH Duetwork The design and installation of the duct system must be in

accoIdance with [he standards of [he NFPA for installation of non-residence type air conditioning and ventilating systems, NFPA

90A or residence-Vpe, NFPA 90B an_or local codes and ordi- nances

Select and size ductworl% supply_air registers, and return air grilles according to ASHRAE (American Society of Heating, Ret'rigerao tion, and Air Conditioning Engineers) recommendations.

The unit has duct flanges on the suppty_ and returnoair openings on the side of [he unit.

When designing and installing ductwork, consider the _bllowing:

Unit

Total Weiqh_

Corner Weight 1 Corner Weight 2

Corner Weight 3 Corner Weight 4

24 30

18_ 14_

28.5 28.5 28 33.5 25 25

53.5 58

Fig. 4_Comer Weights (kg)

CORNER WEIGHTS (LARGE CABINET)

149

34.5 26 59

IMPORTANT: Use flexible connectors between ductwork and unit to prevent transmission of vibration. Use suitable gaskets to

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

flexible duct is use& insert a sheet metal sleeve inside duct. Heat resistant duct connector (or sheet metal sleeve) must extend 24-in.

(610 ram) fi'om electIic heater element.

For vertical supply and return units, tools or parts could &op into dnctwork and cause serious injury or death Install a 90 degree mrn 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 fiom fi_lling 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

rack installed in the return-air side of the unit. Recommended sizes _br filters are shown in Table 1

2. Avoid abrupt duct size increases and reductions. Abrupt change in duct size adversely affects air per_bm_ance.

3. Size ductwork _br cooling air quantity (CFM or L/s). The minimum air quantity fbr proper electric heater operation is listed in Table 2. Heater limit switches may trip at air quantities below those recommended.

4. Seal, insulate, and weatherproof all external ductwork. Seal, insulate and cover with a vapor battier all ductwork passing through conditioned spaces. Follow latest Sheet Metal and Air (onditioning Conkactors National Association (SMACNA) and Air ( onditioning Contractors Association (AC(A) mini- mum installation standards for residential heating and air conditioning systems.

Unit

Total Weight

Corner Weight 1 Corner Weight 2

Corner Weight 3 Corner Weight 4

C00071

161

34.5 23

43.5 60

Roof Curb for Smart Cabinet

Note A: When unit mounting screw is used,

retainer bracket must also be used.

01255mm)

Roof Curb for Large Cabinet

Note A: When unit mounting screw is used,

retainer bracket must also be used.

R/A

_Gasket around_

duct

S/A

s ipport

Loug

Support

Retur iopen ng

(B X C)

UNIT SBZE ODS CATALOG NUMB_::R

50JZ 024-036

80dZ 048

NOTES: 1 Roof curb must be set up for unit being instalbd.

2 Seal strip must be applied, as required, to unit being installed. 3 Dimensions in ( ) are in milfimeters

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: ldn (254 mm) thick fiberglass 1 Ib (45 kg) 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 Micrometl

CPRFCURB006A00 8 (203) 11(279) 161/2 (419) 26-3/4 (730) CPRFCURB007A00 14 (356) 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)

A B C D

IN. {MM) IN. (MM) IN. {MN} IN. (NM)

Insulated deck pan

Gasket around

outer edge \

\"\4

C00076

Fig. 5--Roof Curb Dimensions

5, Secure ai! ducts to building structure, Flash, _ eatherproof, and

_ibration=isolate duct openings in _xall or roof according to

good construction practices

MAXIMUM ALLOWABLE

DIFFERENCE (in.)

A-B B-C A-C

1/4 1/4 1/4

C99065

Fig. 6--UnBt Leveling ToMrances

Illll Itlll

Illll I1111

It111 It111

2 _r

EVAR COIL COND. COIL

C99096

Fig. 7--Slab Mounting Detail

HANDHOLD

HOOK

Fig. 8--Threading Be{t

CONVERTING HORIZONTAL DISCHARGE UNITS TO DOVv%*FLOW(VERTICAL) DISCHARGE LNITS

Before perfc_rming service or maintenance operations on system, trim off main power to unit. Turn off accessory heater

power switch if applicable. Electrical shock could cause

serious injury or death.

1. Open all electrical disconnects before starting any service work

2. Remove horizontal duct covers to access bottom remm and supply knock out panels.

3. Use a screwdriver and hammer to remove the panels in the

bottom of the unit base.

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

4. Reinstall the horizontal duct covers (Fig. 11) to block offthe

horizontal air openings.

FEED

C99067

NOTE: Avoid abrupt duct size increases and reductions Abrl/pt change in duct size adversely affects air performance.

Step 6--Provide for Condensate Disposal

NOTE: Ensure that condensate-water disposal methods comply with local codes, restrictions, and practices.

The 50JZ units dispose of condensate through a 3/4 in. NPT (I9.05 ram) f_male fitting that exits on the compressor end of d'*e unit. Condensate water can be drained directly onto the roof in rooflop installations (where permitted) or onto a gravel apron in ground level installations. 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 &ain condensate connection to prevent the drain fi'om overflowing. Prime the trap with water. When using a gravel apron, make sure it slopes away

I_'om the unit.

If the installation requires draining the condensate water away from the unit, install a field-supplied 2 -in. (50.8 ram) trap at the condensate connection to ensure proper &ainage. Condensate trap is available as an accessory or is field-supplied. Make sure that the

DETAIL A

SCALE 0250

TIGHTEN STRAPPING SECURELY WITH TENSION BUCKLE

= INSTALL SAFETY STRAPS TO

RIGGING CLEVIS AT 4 RIGGING BRACKETS

PLACE RIGGING BRACKET ASSEMBLY IN 4 RIGGING HOLES AND INSTALL TIE DOWN STRAP

AROUND PERIMETER OF UNIT AND THROUGH

SPACE IN BRACKET ASSEMBLY

in.

19.0

20.0

C99075

mm.

482.6 5O8

5O8 5O8

in.

18.25

19.25

19.0

21.25

mm.

463.6 489

482.6

539.8

UNiT

Size

80JZ024

80JZ0S0 80JZ036 80JZ048

SEE DETAIL A

MAXBMUMWEJGHT

tb kg

321 145.6 342 155.2

350 158.8 377 171.0

Fig. 9--Suggested RiggBng

Table 1--Physicam Data-UnR 50JZ (50Hz}-English

UNIT SIZE

NOMINAL CAPACITY (ton} OPERATING WEBGHT (lb.)

COMPRESSOR QUANTITY

TYPE

REFRIGERANT

REFRBGERANT METERBNG DEVICE

Refrigerant (R-41OA} Quantity (lb.)

ORIFICE ID (in.}

ORIFICE OD (in.}

OUTDOOR CO_L

Rows... Finslin.

face area (sq. ft.}

OUTDOOR FAN

Nomina_ Airflow (CFM}

Diameter

Motor HP (RPM)

_NDOOR COBL

Rows... Fins/in.

face area (sq. ft.}

mNDOOR BLOWER

Nomina_ Airflow (CFM)

Size (in.)

Motor (HP}

RETURN-AIR HLTERS (in,)*

throwaway

Required filter sizes shown are based on the larger of the ARI (Air Conditioning and Refrigeration Institute) rated cooling airflow or the heating airflow velocity of 300

ft/minute for throwaway type or 450 if/minute for high-capacity type. Air filter pressure drop for non-standard filters must not exceed 0.08 in wg

80JZ024

299

50JZ08O 50JZ088

2-1/2 3

320 328

80JZ048

355

SCROLL COMPRESSOR

R-410A

Accurater

6.9

0.059

0.032 (2)

2...17

8.5

2200

1/4...900

3...15

3.7

800

10x10

1/2

9.6

0.061

0.040 (2)

2...17

10.3

2200

1_...900

3...15

3.7

1000

10x10

1/4

10.0

0.067

O.040 (2)

2...17

10.3

22OO

1/4...900

41..15

3.7

1200

10x10

1/2

12.0

0.078

0.046 (2)

2...17

13.5

2400

1/3...1340

4...15

4.7

1600

11x10

20x20x1 20x20xl 20x24xl 24x30xl

outlet of the tlap is at least 1 in, (25,4 mnx) lower than the unit drain condensate connection to prevent the &ain flora overflow° ing (onnect a drain tlough using a n_inil*num of _ield-supplied

3/4=in PVC (19,05 ram) o1"copper pipe at outlet end of the 2=in (508 nxm) trap (See Fig 12) Do not undersize the tube, Pitch the drain t*ough downward at a slope of at 1east 1 in, (254 mnx) eve W

Table 2--PhysicN Data-UNt 50JZ (50 Hz)-SI

UNIT SiZE

NOMINAL CAPACBTY (kW} OPERATING WEBGNT (kg}

COMPRESSOR QUANTITY

TYPE

REFRBGERANT

REFRIGERANT METERBNG DEVtCE

Refrigerant (R-410A) Quantity (kg)

ORIFICE ID (ram)

ORIFICE OD (ram)

OUTDOOR COiL

Rows.,. Finstin.

Face Area (sq. m)

OUTDOOR FAN

Nomina_ Airflow (L/s)

Diameter (ram)

Motor HP (rls) iNDOOR COraL

Rows... Finstm.

Face Area (sq. m)

RNDOOR BLOWER

Nominal Airflow (Lls)

Size (m)

Motor (r/s)

RETDRN-ABR FBLTERS (ram)

* Required filter sizes shown are based on the larger of the ARI (Air Conditioning and Refrigeration Institute) rated cooling airflow or the heating airflow velocity of 91.5 m/min, for throwaway type or 137 m cu../min for high-capacity type Air filter pressure drop for non-standard filters must not exceed 203 mm wg

throwaway

50JZ024

135

3.2

1.55

0.81

2...659

8.5

1038

556.8

.167...15

3...590

0.34

378

0.254x0.254

186...17.9

508x508

50JZ030 50J2:03$

8.8 10.6 145 149

SCROLL COMPRESSOR

R-410A

Accurater

4.0

1.55

1.02

2...669

10.3

1036

558.8

.167...15

3...590

0.34

472

0.254x0.254

373...21.7

508x508

2_.669

558.8

.187...15

3...590

0.254x0.254

373...21.9

508x508

4.2

1.70

1.02

10.3

1038

0.34

566

50JZ048

14.1 161

4.8

1.93

1.17

2...669

13.5

1133

558.8

.249...22

4...590

0.44

7O8

0.254x0.254

746...20.5

610x762

Table 3--MiNmum Airflow for Reliable Electric Heater Operation

ABRFLOW

CFM

L/s

10 ft. (3.05 m) of horizontal run. Be sure to check the drain trough for leaks Prime tile trap at the beginning of tile cooling season start=up.

Step 7--Install Electrical Connections

The unit cabinet must have an uninterrupted, unhroken electrical ground [o minimize the possibility of personal injury if an electrical _imlt should occur. This ground 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 IEC, ANSI NFPA

American National Standards Institute/National Fire Protec- tion Association (latest edition) and local electrical codes. Failure to adhere to this warning could result in serious inju_'

or death.

50JZ024 80JZ030 50JZ036

800 1000 1200 378 472 567

50JZ648

1600

756

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

1_ Make all electrical connections in accordance with IEC

ANSINFPA (latest edition) and local electrical codes governing such wiring.

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. ( onsult

local power company fbr 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. De not dan?age internal components when drilling through

any panel to mount electrical hardware, conduit, etc_

HIGH-VOLTAGE ( ONNECTIONS 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, IE( and local codes tbr maximnm _i/seicircuit breaker size and minin-mm circuit amps (ampacity) fbr wire sizing (See Table 4 for electrical data).

The field=supplied disconnect may be mounted on the unit over the high=voltage inlet hole (See Figs. 2 and 3).

TOP COVER

INDOOR THERMOSTAT

RETURN

DISCONNECT PERIEC*

Fig. 10--Typical Installation

Duct Covers

Fig. 11--50JZ with Duct Covers On

C02003

C00092

TRAP

_.,__ 2" (50ram) MIN.

C99013

Fig. 12--Condensate Trap

If the unit has an electric heateL a second discom_ect may be Operation of unit o_1 improper line voltage co_lstitutes abuse and

required. Consult the Installation, Start°Up, and Service Iustruc° may cause unit damage that could affect warranty. tions provided with the accessory fc_r electrical service connec= tions.

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