Installation guide

ManualsBrandsCarrier ManualsHeating & cooling combined unitOfficial Carrier heat pump

HE_ATtNG & COOLING

50JZ024-060

Single-Package Heat Pump Units

with Puron (R-410A) Refrigerant

ViSil "WWw.catTICr.CORI

Installation, Start-Up, and Service Instructions

NOTE: Read the entire instruction manual before starting the

installation.

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

TABLE OF CONTENTS

SAFETY CONSIDERATIONS ..................................................... l

Introduction .................................................................................... 4

Receiving and Installation .............................................................. 4

Check Equipment ...................................................................... 4

Provide Unit Support ................................................................ 4

Provide Clearances .................................................................... 6

Rig and Place Unit .................................................................... 6

Select and Install Ductwork ..................................................... 7

Provide for Condensate Disposal ............................................. 8

Install Electrical Connections ................................................... 8

PRE-START-UP .......................................................................... lO

START- U P ................................................................................... 16

Check for Refrigerant Leaks .................................................. 16

Start-Up Adjustments .............................................................. 16

Defrost Control ....................................................................... 19

MAINTENANCE ......................................................................... 21

Air Filter .................................................................................. 22

Indoor Blower and Motor ....................................................... 22

Outdoor Coil, Indoor Coil, and Condensate Drain Pan ........ 22

Outdoor Fan ............................................................................ 23

Electrical Controls and Wiring ............................................... 23

Refrigerant Circuit .................................................................. 23

Indoor Airflow ........................................................................ 23

Metering Devices-Accurater Piston ....................................... 23

Pressure Switches .................................................................... 23

Loss of Charge Switch ........................................................... 23

High-Pressure Switch .............................................................. 23

Copeland Scroll Compressor (Puron Refrigerant) ................. 23

Refrigerant System .................................................................. 24

System Information ................................................................. 24

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

Sta_-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.

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 basic maintenance functions of

cleaning coils and filters. All other operations should be performed

Fig. 1--Unit 50JZ

C99064

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.

Improper installation, adjustment, alteration, service, mainte-

nance, 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. TItis 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.

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

Book t 4 PC t0t Catalo<j NO. 535_0020 Printed in U.S.A. Form 50JZ-2SI Pg 1 12-00 Re#aces: 50JZ-t SI

Summary of content (32 pages)

PAGE 1
HE_ATtNG ViSil 50JZ024-060 Single-Package Heat Pump Units with Puron (R-410A) Refrigerant & COOLING "WWw.catTICr.CORI Installation, NOTE: Read installation. This symbol the entire instruction --_ indicates SAFETY OF CONSIDERATIONS Introduction manual a change TABLE Start-Up, and Service Instructions since before starting the the last issue. CONTENTS ..................................................... l ...............................................................................
PAGE 2
_IlO 00] • * i i fULL LOUVER B If {16 TURN SUPPLV DUCl OPEniNG 00) I CT [NIN --5505 D [2[ 67] 19 6 [9 83] 249¸6 [983] REARVIEW TOP VIEW _TOC_IilJ611IJEMA'iL MILLIMETERS FIN] )556 114 00] 50 8 (2 001 3556 [14¸001 121 1050] g14 4 []6 00} TOP OF UNII ................. DUCT SISE OF UNIT ..... SIDE OPPO$1f[ DUCTS .... BOT10H OF UNIT .......... ELECTRIC H[_1 PANEL.............. MILLIMETERS FIN] 914 0 [36¸00) 9[4¸0 [3600] [VAP COIL ACCESS SIDE ........................ POWER [NTRT SIDE.......
PAGE 3
• = . , .j DIlL ,, LOIIVER I -- m <1 4DE 115 _L' (I 831 II? 1 14 63] SUPPLy DUCT OPENIN G - i , r --8T R[TUNN _UCI OPENING , P,,-347 2 I l" i jl 3 ! _35q ? _351 [13 113831 _ lo COMBUSTIBLE R£(ZURB) MATL Mit LIf4ETERS TOP OF U_IT ........ _UCT SIDE Of UNI1 SIDE OPPOSITE DUCTS BOttOMOf UNiT . ELECTRIC HEAl PANEL 35_ IJ_ SO B I_ 35S 6 [14 i? 1 [o 914 4 [3b .....
PAGE 4
1 2 Y O Z 3 X 000071 CORNER WEIGHTS (SMALL CABINET) CORNER Unit 24 Tnt_l W_inht 299 Comer Weight t 63 63 64 Comer Weight 2 62 74 76 Comer Weight 3 56 56 58 Comer Weight 4 118 127 130 N 30 36 WEIGHTS (LARGE CABINET) Unit 42 48 60 N ..j Total Weight 350 355 428 m Comer Weight 1 75 76 92 10 • O Comer Weight 2 49 50 60 Comer Weight 3 95 96 116 Comer Weight 4 131 133 160 o FJg. 4_CornerWeights 1.
PAGE 5
Roof Curb for Small Roof Cabinet Curb for Large Cabinet Note A: When unit mounting screw is used, retainer bracket must also be used. Note A: When unit mounting screw is used, retainer bracket must also be used. \ / \\, / '\\ T / S/A R/A _-_Gasket \ around'_ duct /' \ / J Insulated deck pan Gasket outer around edge \\ C00076 UNIT SIZE 50JZ024-036 50JZ042-060 ODS CATALOG NUMBER A iN. (MM) B C IN. (MM) D IN. (MM) 28-3/4 (730) CPRFCURB006A00 8 (203) IN.
PAGE 6
Step 4_Rig Rigging reasons and Place Unit and handling of this equipment due to the installation location can be hazardous for many (roofs. elevated structures. etc. / 3 Only MAXIMUM ALLOWABLE DIFFERENCE (in.) / B A-B B-C / A-C t/4 1/4 1/4 C99065 trained, qualified should handle When working literature, operators with this equipment, on tags, stickers, and any other salety Follow crane and ground support staff and install this equipment.
PAGE 7
non-residence type air conditioning 9flA or residence type. NFPA and ventilating 90B and/or systems, local codes NFPA and ordi nantes. Select and size ductwork, supply-air registers, and return air grilles according to ASHRAE (Amefican Society of Heating, tion, and Air Conditioning Engineers) recommendations. HOOK The unit has duct flanges on the supply the side of the unit.
PAGE 8
Table 1--Physical UNIT SIZE NOMINAL CAPACITY Data--Unit 50JZ 50JZ024 I 50JZ030 50JZ036 299 2 I 2-1/2 320 328 3 OPERATING WEIGHT (lb.) COMPRESSOR QUANTITY TYPE Refrigerant SCROLL ORIFICE I 50JZ060 3-1/2 350 355 4 I 428 5 COMPRESSOR R-410A METERING (R-410A) 50JZ048 1 REFRIGERANT REFRIGERANT 50JZ042 (ton) DEVICE Accurater 7.0 8.9 9.3 9.5 10,6 12.4 0.061 0.061 0.067 0.073 0.076 0.088 0.032 (2) 0.040 (2) 0.040 (2) 0.038 (2) 0.046 (2) 0.052 (2) 2...17 8.5 2...
PAGE 9
Table 2_Minimum Airflow for Reliable Electric Heater Operation (Cfm) SIZE 50JZ024 50JZ030 50JZ036 50JZ042 50JZ048 50JZ060 AIR FLOW (CFM) 800 1000" 1200 1400 1600 2000 • The 030 size mOdels must be run on medium or high speed when used in conjunction with 15 kW electric heat accessory I INDOOR THERMOSTAT @ FROM SOURCE DISCONNECT PER NEC* *NEC - NATIONAL ELECTRICAL CODE C00063 Fig. 10--Typical Installation 1" MIN. TRAP OUTLET _t 2" MIN. C99013 Fig.
PAGE 10
lor 230-v Failure to follow these precautions could result the unit being installed: I. Make all electrical connections ANSI/NFPA Ilatest codes. edition) 2. Electrical Refer and Use only Code to unit local copper range pbases local company power power indicated units, ensure for conduit when to mount HIGH-VOLTAGE plate. within 2 percent. Consult of improper voltage for highest low-voltage control wires. components electrical voltage contained through etc.
PAGE 11
Table 3--Electrical UNIT 50JZ SIZE 024 V-PH-HZ VOLTAGE RANGE Min 208/230-1-60 167 Max 253 COMPRESSOR RLA 13.5 LRA 61.0 ODFM FLA 0.9 I IDFM ELECTRIC 2.0 I Nominal kW" J3.8/5.0 7.5/10.0 FLA -/18.1/20.8 36.1/41.7 UNIT MCA 19.6/19.8 42.3/45.8 64.9/71.9 -/161/20.8 36 1141.7 54.2/625 22.9/22.9 45.4/48.9 68.0/75.0 90.6/101.0 30/30 50/50 15.9 73.0 0.9 21 206/230-3.-450 187 253 10.9 63.0 0.9 2.1 -/3.8/5.0 7.5/10.0 11.3/15.0 -/10.4/12 0 20.8/241 31.3/36.1 16.6/16.6 29.7/31.7 42,7/46.
PAGE 12
Ff?_l I _F ,N , ,, -_. ,,,iI_ [ ,'I=_¸ BpN _! tlFp _"_L HEAN E A_ S(IPeL [_SS/3F I ELECIRI R!LT HE_l FIELD THERMO ;T_T ,[E tJC,l [ _ $ I [ .RI :..... : w,-: _ _ 'al: J _116 PP[_ 6 . _ LEGEND UNI[ ,_,IPON[N[ _ER_N,;IMLN[ T[RM_N_L_¥_[[II I__:L_J t 11[ [_1 I:E3 :RIUII fHAK[R Ihli I _ MNII_[ isq F;:3 _, UI.I_ I_ i I _1 _ Mql_ FI, [ r iii pM i_1 ir,LiMr rl.i ILLM kLL_r i.............. I _ / I i_ MINH] NI, k_i i ir_ %. I[ _{i ROST IWt_MO,T_T rl _.
PAGE 13
I m ,j FUL _Z_ •i _ ,_ IL_ - _[T .'VvM _- -_ _ : , . ;'l b , u :,MI¸ i CD-_CD q; "i _l_i d_J i ¸ !# - C)-II'C) SCHEMATIC 208/230-3-60 i _ _ _ , Lr ,, • l.H_, , i-,r r LEGEND IINI T MFr_NF!_I _fAF_[M[FI[ %:,. !, M_.r r_rL J, . ..... • _r u_r DnJ .,?,': 'L . w ,MP ri r I _ C00153 Fig.
PAGE 14
- 'C>'IO-O -_ -. C>IK:) - - ° L. C_4_ • - SCHEMATIC 460-3-60 © © © | | "=, - . _ _0 dkrj " lk _ .... AMF' MltJlh_L kE I T -_I _PN !'C'x _ • 1 L "" I G' ..... - 7_ - , , _ - t_ pRN "] ,_ _ BRN L t'hn-W_ frEL_ _ _E _MC_ WNT -L -- _-- @ __ O I fgpN- __ • W .11 b£ _ u. _pN - , 4 -- _/, @ . _ . L __ LEGEND E( h _,_ 1 ................... ' " '_ " ""°"..... ..... ,m,:. _" " "r _r _' ,....
PAGE 15
EXAMPLE: Supply voltage is 460-3-60. A B C AB = 452 v FLA LRA MCA MOCP RLA ------ AC = 455 v Full Load Amps LockedLEGEND RotorAmps C Minimum Circuit Amps Maximum Overcurrent Protection Rated Load Amps US Average Voltage = 452 ÷ 464 ÷ 455 3 BC = 464 v = 1371 *Heater capacity (K3N) based on heater voltage of 208v, 240v, & 480v. If power distribution voltage to unit varies from rated heater voltage, heater KW will vary accordingly. = 457 Determine maximum deviation from average voltage.
PAGE 16
a. Make sure that outdoor-fan fan orifice. 2. Place system switch or MODE control in HEAT position. Set control above room temperature. Observe that compressor, outdoor fan, and indoor blower motors start. Observe that blade is correctly positioned in b. Make sure that air filter(s) is in place. heating c. Make sure that condensate drain pan and trap ,are filled with water to ensure proper drainage. d.
PAGE 17
OUTDOOR INDOOR COIL COIL Bypass pc_itlon LCS Metering Position LEGEND HPS - High Pressure Switch LCS - Loss of Charge Switch :_ Accurater_ Metering Device ] Arrow indicates direction of flow C00095 Fig. 22--Typical Heat Pump Operation, Heating Mode _lJ OUTDOOR INDOOR COIL COIL Mete(ing Position #LCS Bypass Position LEGEND HPS - High Pressure Switch LCS - Loss of Charge Switch ___ Accurate¢' Metering Device ] Arrow indicates direction of flow C00096 Fig.
PAGE 18
Table 4--Wet Coil Air Delivery Unit 50JZ 024-060 (Deduct 10 percent for 208-v)* UNIT EXTERNAL MOTOR SPEED Low 024 Med 0.0 0.1 0.2 0.
PAGE 19
--_ Table 6_ELECTRIC HEAT PRESSURE DROP TABLE Small Cabinet: 024-036CFM 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 0.00 0.10 0.11 15 kW 20 kW 0.00 0,00 0.00 0.00 0.00 0.02 0.02 0.04 0.04 0.06 0.06 0.08 0.08 0.09 0.10 O.11 0.12 0.13 0.14 0 15 0.16 0.18 0.
PAGE 20
(O24) 60 Hz COOLING CHARGING For use with units using CHART R41Oa Retngerant H d5 0_ 41I 35 _tRE_ Fig. 25--Cooling :i ?4 55 18 55 13 15 ? S Charging Chart, 50JZ 024 Units 82 ia. 26---Coolina (042) Charaina Chart.
PAGE 21
(0_O) 60 HZ COOLING (048) 60Hz COOLING CHARGING CHART For use with units using R410a Refngerant CHARGING For use with units using O_DO_ R41Oa CHART Refngerant T_ ======================== 125 52 115 ,_ 185 4 95 85 75 21 % I mr i ! i ;!::LS_:i:?i?:: Fig. 29--Cooling Charging Chart, again turn off for an additional 50JZ Fig. 30--Cooling Un_=°°86 048 30 sec and the outdoor fan for 40 sec. When the Quiet Shift is in OFF position, I'_ 1}_'!:.
PAGE 22
O ro --CS3-- --CSY-- A99442 Fig. 31--Defrost 4. Check proper electrical connections operation each for cooling tighmess season. and Service controls when Control for neces- sal'y. Step 1--Air Filter IMPORTANT: Never operate in the return-air duct system. the unit without a suitable air filter Always the filter with the replace same dimensional size and type as originally 1 for recommended filter sizes. installed.
PAGE 23
clear water. Do not splash or air filter(sl. "plumbers Step water If the drain snake" or similar 4.--Outdoor 1. Remove on the insulation, trough motor, is restricted, probe clear wiring, it with a device. Fan 6 screws holding outdoor grille and motor to top Cover. 2. Turn motor/grille expose assembly upside down on top cover 3. Inspect the fan blades for cracks 4. If fan needs to be removed, motor or bends. loosen sctscrew and slide fan off shaft. 5.
PAGE 24
The compressor Exercise is an electrical extreme caution should be shut niques. Refrigerants off. tas well when working if possible, present as mechanical) for most additional 2. Cover device. near compressors. Power troubleshooting area in front tech safety hazards. 3. Place terry cloth component(s! through required 5. Remove and local codes. LIQUID LINE The scroll compressor pumps refrigerant throughout the system by the interaction of a stationary and an orbiting scroll.
PAGE 25
NOTE: _FEEDERTUBE The defrost of the outdoor 3TUBE thermostat must be located on the liquid side coil on the bottom circuit and as close to the coil as possible• TROUBLESHOOTING Refer to the Cooling Table 7.) lor troubleshooting and Heating START-UP DEFROST THERMOSTAT Use the Start-Up followed. C99029 Fig. 33--Defrost is a thermally temperature.
PAGE 26
HEAT PUMP WITH PURON---QUICK REFERENCE GUIDE Puron refrigerant operates at 50-70 percent higher pressures than R-22. Be sure that servicing equipment designed to operate with Puron. Puron refrigerant cylinders are rose colored. and replacement components are • Puron refrigerant cylthders manufactured pdor to March 1, 1999, have a dip tube that allows liquid to flow out of cylinder in upright position.
PAGE 27
Table 7--Troubleshooting Chart REMEDY CAUSE SYMPTOM Power Failure Call power company Fuse ffiown or circuit breaker tnpped Replace fuse or reset circuit breaker Defective thermostat, contacfor, transformer, control relay, defrost board, or high pressure or lossof-charge/low pressure switch Compressor and outdoor fan will not start thsuffic_ent line voffage Determine cause and correct Incorrect or faulty wiring Check widng diagram and rewire correctly Thermostat Lower thermostat temperature s
PAGE 28
Table 7--Troubleshooting CAUSE SYMPTOM Head pressure too low Excessive suction pressure Chart (Cont'd) LOW retngeran( REMEDY Check for leaks, repair and recharge charge Restriction in liquid tube Remove (Heat) OutdoOr coil frosted Move timer on con('r_ boar_ to 30 mirlutet; between defrost cycles (Cool) High Heat load Check for source and eliminate Reversing valve hung up or leaking internally Replace valve Refhgerant overcharged Recover (Cool) Dirty air filter Replace filter (Heat) Out
PAGE 29
START-UP (REMOVE I. PRELIMINARY AND CHECKLIST STORE IN JOB FILE) INFORMATION Model No ............................................................................................................................................................. Sedal No .............................................................................................................................................................. Date ........................................................................................
PAGE 30
PAGE 31
PAGE 32
Copyright 2000 CARRIER Manufacturer Corp. • 7310 W. Morris St. * Indianapolis, reserves the right PC 101 to discontinue, Catalog NO. 535-00020 IN 46231 50iz2si or change at any time, specifications Printed in U.S.A. Form or designs 50JZ-2SI without notice and whhout incurring obligations.