Download Carrier 38YKC Instruction manual
Transcript
HEATING Visil 38YKC 10 SEER Split System Heat Pump & CCOUNG www.carrier.com Installation and Start-Up Instructions NOTE: Read the entire instruction manual belore installation. starting the This symlx)l --+ indicates a change since the last issue. SAFETY CONSIDERATIONS Improper installation, adjustment, alteration, service, maintenance, or use can cause explosion, fire, electrical shock, or other conditions which may cause death, personal injury, or property damage. Consult a qualified installer, service agency, or your distributor or branch for information or assistance. The qualified installer or agency must use factory-authorized kits or accessories when modifying this product. Refer to the individual instructions packaged with the kits or accessories when installing. Follow all safety codes. Wear safety glasses, protective clothing, and work gloves. Use quenching cloth lor brazing operations. Have fire extinguisher available. Read these instructions thoroughly and follow all warnings or cautions included in literature and attached to the unit. Consult local building codes and National Electrical Code (NEC) for special requirements. Recognize safety information. This is the safety-alert symbol/_. When you see this symbol on the unit and in instructions or manuals, be alert to the potential for personal injury. Understand the signal words DANGER, WARNING, and CAUTION. These words are used with the sal_ty-alert symbol. DANGER identifies the most serious hazards which will result in severe personal injury or death. WARNING signifies hazards which could result in personal injury or death. CAUTION is used to identify unsafe practices which would result in minor personal injury or product and property damage. NOTE: In some cases gas pulsations I. Locate capacity noise in the living area has been traced installation unit away from windows, operation 2. Ensure RECOMMENDATIONS from improper sounds that vapor may disturb slack between as direct 8. Ensure that tubing insulation is pliable and completely rounds vapor tube. structure and by unit 9. When necessary, use hanger straps which are 1 in. wide and conform to shape of tubing insulation. (See Fig. 23 10. Isolate hanger straps from insulation by using metal sleeves bent to conform to shape of insulation. IMPORTANT: Maximum liquid-line size is 3/8-in. O.D. for all residential applications including long line. IMPORTANT: Always install a liquid-line filter drier. RelEr to Product Data Sheet fi_rappropriate part number. Obtain filter drier from service parts or your distributor or branch. INSTALLATION to avoiding to sur- absorb Equipment and Job Site UNPACK UNIT Move to final location. Remove carton taking care not to damage unit. INSPECT EQUIPMENT tubing wall studs, Manulacturer possible 38YKC 7. Do not suspend refrigerant tubing from joists and studs with a rigid wire or strap which comes in direct contact with tubing. (See Fig. 2.) Step 1---Check 5. When passing refrigerant tubes through with RTV or other pliable silicon-based joists, are appropriate of unit. Leave some vibration. 6. Avoid etc. where unit customer. and liquid tube diameters 3. Run refrigerant tubes as directly unnecessary turns and bends. 4. to of equipment. patios, decks, Fig. 1--Model When outdoor unit is connected to factory-approved indoor unit, outdoor unit contains system refrigerant charge for operation with indoor unit of the same size when connected by 15 ft of field-supplied or factory accessory tubing. For proper unit operation, check refrigerant charge using charging infi>rmation located on control box cover. Before installing, modifying, or servicing system, main electrical disconnect switch must be in the OFF position. There may be more than 1 disconnect switch. Lock out and tag switch with a suitable warning label. Electrical shock can cause personal injury or death. INSTALLATION A98519 contact with water pipes, duct work, floor floors, and walls. reserves PC 101 the wall, seal opening caulk. (See Fig. 2.) the right to discontinue, Catalog No. 563 718 File claim with shipping company prior to installation if shipment is damaged or incomplete. Locate unit rating plate on unit comer panel. It contains inlbrmation needed to properly install unit. Check rating plate to be sure unit matches job specifications. or change at any time, specifications Printed in U.S,A or designs Form 38YKC-281 without notice and without incurring Pg 1 11-98 obligations. Replaces: 38YKC-181 3/8 IN. DIA TIEDOWN "_ KNOCKOUTS IN BASEPAN (2) PLACES NOTE: Avoid contact between tubing and structure OUTDOOR WALL-k ,NDOOR WALtz ? CAULK (_ -- &- LIQUID TUBE_ 2/-% J_'_ SULATION -_" _ ......... VAPOR TUBE THROUGH THE WALL J_"-JOIST HANGER STRAP'_ (AROUND VAPOR TUBE ONLY) %= -_,' \ /_ --8 3/16" INSULATION A97548 Dimensions (In.) I1 UNIT SIZE tl _--- MINIMUM MOUNTING PAD DIMENSIONS LIQUID TUBE SUSPENSION TIEDOWN KNOCKOUT LOCATIONS Support Feet Snow Stand 018, 024 20 X 27 24 X 28 4-1/8 7-1/8 030-060 26 X 32 31 X 35 5-1/16 9-11/16 A Fig. 3_Mounting B Unit to Pad A94028 Fig. 2---Connecting ---) Step 2--Install If conditions down bolts provided in to determine Step 5---Elevate Unit Tubing Installation on a Solid, Level Mounting Pad or local codes require the unit be attached to pad, tie should be used and fastened through knockouts unit base pan. Refer to unit mounting pattern in Fig. 3 base pan size and knockout hole location. eqmpment Elevate On rooftop applications, mount on level platform or frame 6 in. above roof surface. Place unit above a load-bearing wall and isolate unit and tubing set from structure. Arrange supporting members to adequately support unit and minimize transmission of vibration to building. Consult local codes governing rooftop applications. damage. unit per clearance above drainage of unit. installed. freezing Use local climate estimated Fig. 4 shows accessory temperatures tion Instructions and code snowfall snow stand with in areas Refer to provide and ensure unit with accessory are encountered. packaged requirements level adequate support where to separate feet prolonged Installa- accessories. Roof mounted units exposed to winds above 5 mph may require wind baffles to achieve adequate defrost. Consult Low-Ambient Guideline for wind baffle construction. NOTE: Unit must be level to within _+ 2 ° (_+ 3/8 in./ft) per compressor manufacturer specifications. Step 3_Clearance Requirements When installing, allow wiring, refrigerant piping, sufficient service end of unit and 48 in. above space and service. for Allow airflow 30-in. clearance, clearance unit. For proper airflow, to a 6-in. clearance on 1 side of unit and 12 in. on all remaining sides must be maintained. Maintain a distance of 24 in. between units. Position directly so water, snow, or ice from root" or eaves cannot fall on unit. On rooI_Lop applications, surface. locate unit at least 6 in. above roof A98534 Step 4_Operating Ambients Fig. 4---Accessory The minimum outdoor operating ambient in cooling mode is 55°F, and the maximum outdoor operating ambient in cooling mode is 125°F. The maximum outdoor operating ambient in heating mode is 66°F. _) Step 6_Check Support Feet Indoor and Outdoor AccuRater_ Piston Check indoor coil piston to see if it matches the required piston shown on outdoor unit rating plate. If it dees not match, replace 2 indoor coil piston with piston shipped with piston shipped with outdoor unit is correct coil combination. outdoor unil. Ior any approved The indoor To prevent damage to unit or service valves observe the or use a heat sink following: • Use a brazing • Wrap material. Check outdoor unit piston. and check piston rating retainer size with matching on liquid service number listed on outdoor Check del¥ost securely Defrost thermostat unit attached. and Ieeder tube tubes, There going there Thermostat to ensure is a liquid header into outdoor is a 3/8-in. it is properly located and should 3 in. header. cloth to indoor section using accessory relrigeranl grade tubing of correct recommendations in field the Guideline tubing accessory be located on stub tube. Note that there is only 1 stub tube used with liquid and on most units it is the bottom circuit. wet For tubing requirements beyond perfi,_rmance losses can occur. lbr with a brass distributor O.D. stub tube approximately with size and condition. tial capacity and Application coih At the end of I of the long. (See Fig. 5.) The defi-ost thermostat valves ---)' Outdoor units may be connected tubing package or field-supplied valve plate. Step 7--Check feeder Remove shield. service Residential will reduce equivalent Split these line System losses. length. 50 It, substanFollowing the Long-Line Relk'r to Table Refer to Table 2 I for requirements. ---)' For buried-line distributor. applications greater than 36 in., consult your local If refrigerant tubes or indoor coil are exposed to atmosphere, they must be evacuated to 500 microns to eliminate contamination and moisture in the system. FEEDER TUBE OUTDOOR STUB TUBE INDOOR UNIT CONNECTED TO FACTORY-APPROVED UNIT Outdoor unit contains correct system refrigerant charge for operation with indoor unit of same size when connected by 15 ft of field-supplied or factory-accessory tubing. Check refrigerant charge for maximum efficiency. REFRIGERANT TUBING Connect tubing to fittings on outdoor unit vapor and liquid service valves. (See Table I.) Use refrigerant grade tubing. DEFROST THERMOSTAT SWEAT CONNECTION Ag7517 Fig. 5_Defrost Thermostat Location To avoid valve damage while brazing, service valves must be wrapped in a heat-sinking material such as a wet cloth. Step 8--Make Piping Connections Remove plastic retainer valve and connect 6.) Connect Relieve pressure and recover all refl'igerant before system repair or final unit disposal to avoid personal injury or death. Use all service ports and open all flow-control devices, including solenoid valves. refrigerant tubing beating Refrigerant tubing testing. This check should piston provided to fittings in liquid to valve. on outdoor Check include against and Recommended each other to IEeder tubes, making unit vapor and from factory and with a wet cloth, factory during or local code require- coil are now ready all field to be certain not rubbing Consult and indoor unit has not shifted service (See Fig. valve using either silver bearing material. and outdoor secure LIQUID brazing ments. attention Connections tubing set can be brazed to service ----).IMPORTANT: Table 1--Refrigerant outdoor adapter liquid service valves. Service valves are closed ready for brazing. Alter wrapping service valve or non-silver UNIT SIZE holding sweat/flare and factory tubing shipment. any sheet for leak joints. on both indoor Ensure metal. tubes are Pay sure wire ties on feeder close tubes are and tight. Liquid and Vapor Tube Diameters (In.) VAPOR VAPOR (LONG LINE) 018, 024 Connection Diameter 3/8 Tube Diameter 3/8 Connection Diameter 5/8 Tube Diameter 5/8 030, 036 3/8 3/8 3/4 3/4 3/4 7/8 042, 048 060 3/8 3/8 7/8 7/8 7/8 1-1/8 3/8 3/8 7/8 1-1/8 7/8 1-1/8 Connection NOTES: 1. Tube diameters are for lengths up to 50 It, For tubing lengths greater than 50 It, consult Residential Split System Long-Line 2. Do not apply capillary tube indoor coils to these units. Diameter Tube Diameter 5/8 Application Guideline. 3/4 Table 2--Accessory Usage REQUIRED FOR LOW-AMBIENT APPLICATIONS REQUIRED FOR LONG-LINE APPLICATIONS* (BELOW 55°F) (OVER 50 FT) Yes Yes Evaporator Freeze Thermostat Accumulator Yes No No No Compressor Start Assist Capacitor and Relay Low-Ambient Controller, Yes Yes MotorMaster_ Control, or Low-Ambient Pressure Switch Wind Baffle Yes NO See Low-Ambient Instructions No Support Feet Recommended No No See Long-Line Application Guideline Yes_ No ACCESSORY Crankcase Heater Liquid-Line Solenoid Valve or Hard Shutoff TXV Ball Bearing Fan Motor • For tubingline sets between 50 and 175 ft, referto ResidentialSplit System Long-LineApplicationGuideline. _: Requiredfor Low-AmbientController(fullmodulation feature) and MotorMasterControlonly PISTON ROUTE GROUND Remove access wiring. Extend provided AND POWER panel and control wires WIRES box cover from disconnect and into unit control to gain access through power to unit wiring hole box. r!_ lvI.Jl;] :11_[, The unit ground PISTON PISTON SWEAT/FLARE RETAINER cabinet should occur. metal conduit Step 9---Make Electrical Valve Tube with Sweat Adapter complies and electrical and voltage NOTE: abuse Operation of unit where NOTE: unit. Use wire to system on phne improper NOTE: Install voltage POWER I only is within limits liar recommended line voltage may Yluctuate FIELD GROUND fire, sal_ty, GROUND LUG A91056 Fig. 7--Line constitutes above j of circuit plale. ® WIRING shown lor correction See unit nning belween Do not or below CONNECT CONTROL Route control 24-v connect leads Power Connections WIRING wires to control disconnect switch and thermostat is Ioca[ed along the control NEC Io handle from and readily branch circuit unit starling accessible disconnect current. existing .©°© ©o© through wiring. Use No. 18 AWG color-coded, copper with can result in an WIRING local power company unit reliability. install unit in system permissible limits. in accordance fault wire or CONTACTOR with local and national See unit rating and could afl_ct installed of electrical Connections Be sure field wiring voltage. device. may consist DISCONNECT PER N. E. C. AND/OR LOCAL CODES To avoid personal injury or death, do not supply power to unit with compressor terminal box cover removed. improper protection when or unbroken if an electrical Connect ground wire to ground connection in control box for safety. Connect power wiring to contactor as shown in Fig. 7. ¥!_ I[VI'__T=II: [_ codes, The ground injury GROUND AND POWER WIRES FELD on unit rating plate. Contact an uninterrupted ADAPTER A94029 Service have pe_onal electrical codes. Failure to follow this warning electric shock, fire, or death. CONNECT Fig. 6---Liquid must to minimize of adequate Locate disconnect from unit, per Section size within 440-14 to avoid per sight of NEC. 4 excessive more voltage control insulated than wires, wiring grommet and (See Fig. 8-12.) (35°C 100 ft from use No. 16 AWG voltage drop. -") All wiring must be NEC incoming power leads. Class I and must minimum) wire. If unit. as measured color-coded wire be separated from CARRIER PROGRAMMABLE THERMOSTAT MODEL HP 24 VAC CARRIER PROGRAMMABLE THERMOSTAT MODEL HP FA, FB, FC, FD, FE, FH FAN COIL HEAT PUMP ONE OUTDOOR THERMOSTAT 24 VAC HOT INDOOR INDOOR HEAT PUMP m .j - - -_] HOT FA, FB, FC, FD, FF, FH FAN COIL _1 FAN FAN HEATSTAGE2 HEAT STAGE2 _] ODT _i-- COOWHEAT STAGE1 COGL/HEAT STAGE 1 RVS COOLING RVS COOLING NOT USED I NOTUSED I.... -- L___ 24 VAC COM 24 VAC COM NOT USED _1 NOT USED * IF AVAILABLE -#-D TROUBLE TROUBLE OPTIONAL OUTDOOR __ SENSOR CONNECTION OPTIONAL OUTDOOR _ SENSOR CONNECTION = F_ s-q A97534 NOTE: Remove wires from crimp nut in indoor fan coil when installing outdoor thermostat. IMPORTANT; When using outdoor thermostat, W 2 must be energized when requesting supplemental heat. A97535 CARRIER PROGRAMMABLE THERMOSTAT MODELHP FA, FB, FC, FD, FF, FH FAN COIL HEAT PUMP TWO OUTDOOR THERMOSTATS ODT 24 VAC HOT INDOOR CARRIER PROGRAMMABLE THERMOSTAT MODEL HP FAN 40FKA FK4C FAN COIL r m HEAT STAGE 2 24 VAC HOT F'_ INDOOR FAN E_] HEAT PUMP I ]DH_ I1_1 JUMPER -- COOIJHEAT STAGE t RVS COOLING ._,q_ ..... NOT USED '4r' ll HEAT STAGE 2 II 'OMPEB COGIJHEAT STAGE 1 24 VAC COM RVS COOLING NOTUSED L4-10 Id NOT USED TROUBLE ...4 ..I 1_ Z...i I I.--I I 24 VAC GeM OUTDOOR SENSOR CONNECTIO OPT,ONAL i-- -q NOTE: NOT USED [_ TROUBLE [_ .J l._l F, I [_ Remove wires from crimp nut in indoor fan coil when installing outdoor thermostats. IMPORTANT: OUTDOOR SENSOR CORNECTIO OPT,ONAL When using outdoor thermostats, W 2 must be energized when requesting supplemental heat A97536 Fig. 8_Typical 24-v Circuit Connections using Carrier Model HP Thermostat with Fan Coils and Ne Outdoor Thermostat, I Outdoor Thermostat, or 2 Outdoor Thermostats A98629 OTHER HP THERMOSTAT EA, EB, FC, FD. FF, FH FAN COIL HEAT PUMP FA, FB, FC, FD, EF, FH FAN COIL OTHER HP THERMOSTAT HEAT PUMP ONE OUTDOOR THERMOSTAT OOT 24 VAC HOT 24VACHOT _ _. 24VACCOM _ _- J ! HEATSTAGE2 _ _. ,J 24 VAC COM r"gL[ HEAT STAGE 2 [_ COOL/HEAT STAGE 1 INDOOR : COOL!HEAT FAN [_ RVS COOLING INDOOR STAGE1 _'_ EMERGENCY HEAT IF AVAILABLE A97374 FAN RVS COOUNG [_3 EMERGENCY HEAT [_ NOTE: FA, EB, FC, FD, FF, FH FAN COIL HEAT PUMP r_! __ i _,_ ...... Remove wires from crimp nut in indoor fan coil when installing outdoor thermostat. IMPORTANT: OTHER HPTHERMOSTAT [_ When using outdoor thermostat, W2 must be energized when requesting supplemental heat. TWO OUTDOOR THERMOSTATS A97403 ODT 24 VAC HOT OTHER HP THERMOSTAT 40FKA FK4C FAN COIL 24 VAC COM r HEATSTAGE; 24 VAC HOT COOWHEAT STAGE1 24 VAC COM INDOOR '1 FAN ODT HEAT STAGE 2 I [_ EMERGENCY HEAT INDOOR _" * IF AVAILABLE RVS COOLING ....... FAN _H Remove wires from crimp nut in indoor fan coil when installing outdoor thermostats. IMPORTANT: J2 JUMPER []1 When using outdoor thermostats, W2 must be energized when reques mg supplemen al heat, EMERGENCY HEAT A97404 Fig. 9--Typical I1 JUMPER El}-' COOL!HEAT STAGE 1 RMS COOLING NOTE: HEAT PUMP [_ A98630 24-v Circuit Connections using Other HP Thermostats with Fan Coils and No Outdoor Thermostat, 1 Outdoor Thermostat, or 2 Outdoor Thermostats CARRIER PROGRAMMABLE THERMOSTAT MODELHP FA, EB, EC, EH ONE FAN COIL WITH OUTDOOR SMART HEAT THERMOSTAT m CARRIER PROGRAMMABLE THERMOSTAT MODEL HP ! 24 VAC HOT _" INDOOR PAN _ FA, FB, FC, FH FAN COIL WITH MART HEAT HEAT PUMP .......4_-t ...... _ I -I r--E_I ...... -,q-DI HEAT PUMP 24 VAC HOT ....._ -_#-E_ INDOOR ..... _ _-D EAN HEAT STAGE 2 rw_ -li _ r- IIII COOL!HEAT STAGE 1 I I HEAT -,I I ,,-I-+'-II I STAGE 2 RVS COOLING I I _L,__4--_ I COOL/HEAT STAGE 1 RVS COOLING _ NOT USED -_-+--.C_l ...... _-DI .__ 24 VAC COM E_ NOT USED D JWl CUT ._..J ODT NOT USED 24 VAC COM E_ ._J.... ,- I TROUBLE •_.'-JWt NOT USED OUTDOOR SENSOR CONNECTIO OPT,ONAL _r-_ TROUBLE OUTDOOR A97542 OPT,ONAL _ _--q SENSOR S--TI CONNECTIO CARRIER PROGRAMMABLE THERMOSTAT MODEL2S A97541 4OFKA EK4C PAN COIL HEAT PUMP I CARRIER PROGRAMMABLE THERMOSTAT MODEL HP m FA, FB, FC, FH FAN COIL WITH SMART HEAT SUPPLEMBNTA -HEATING HEAT PUMP E_ FAN [_] -COOL!HEAT STAGE 1 --%%--¢LiZ 24 VAC HOT 24 VAC HOT -'[_- REMOVE .... t5_3._g_%%R HEAT STAGE B INDOOR PAN m-q f-q HEAT STAGE 2 COOL/HEAT STAGE 1 RVS COOLING _ NOT USED Yt/W2 STA NG HEAT STAGE 3 RVS E_- ........ COOLING 24 VAC RVS _'- - ____,t_OMPER CUT JWl COMM E_ HEATING .... C_ ..... +--_ [_ TROUBLE 24 VAC COM OUTDOOR NOT USED SENSOR TROUBLE -- CONNECTION OPTIONAL OUTDOOR SENSOR CONNECTION S-_ Intelligent Sequencing Application: Model 2S thermostat with switch C OFF and switch D ON uses single speed heat pump, FK4 or 4OFKA lan coil with selected 2:1 size ratio heaters, Provides 3 sta s of auxiliary heat for even heating comfort via W/W1 anal/W2. Refer to FK4 or 40FKA Installation Instructions, _ A97543 A98631 Fig. lO--Typical 24-v Circuit Connections using Carrier Model HP Thermostat with Smart Heat and No Outdoor Thermostat, 1 Outdoor Thermostat, or 2 Outdoor Thermostats and Carrier Model 2S Thermostat with FK4C/40FKA Fan Coil and Intelligent Staging 7 FA, FB, FC, FH FAN COIL SMART HEAT OTHER HP THERMOSTAT 24 VAC HOT ...... tZ_3-t..... -_--IN 24 VAC HOT 24 MAC COM ...... -E_k..... ___[_ 24 VAC COM ...... -[Z]I COO_HEAT STAGE1 ...... 4-_-11 INDOOR ...... -IZ}k..... RVS COOLING -7 EMERGENCY HEAT COOL/HEAT STAGE 1 E_ INDOOR FAN RVS COOLING I_ EMERGENCY HEAT / IA_-F..... I_ ....... ..... "t_Z3-1..... ...... m-II ...... tZ]I ...... C_-k..... FAN _] ...... HEAT STAGE 2 _JW1 HEAT PUMP ..... ,__f ..... I # HEATSTAGE2 FA, FB, FC, EH FAN COIL SMART HEAT OTHER HPTHERMOSTAT HEAT PUMP CUT ES]-k..... A97411 A97410 FA, FB, FC, FH FAN COIL SMARTHEAT OTHER HPTHERMOSTAT HEAT PUMP 24 VAC HOT 24 VAC COM COOUHEAT STAGE 1 I_ --4--I-q I INDOOR '4-_q FAN RVS COOLING EMERGENCY HEAT I ---J--, -_ _ ....... CUT ,tAt_ HEAT STAGE 2 .... _-_-i [_- _ A97412 Fig. 11--Typical 24-v Circuit Connections using Other HP Thermostats and No Outdoor Thermostat, 1 Outdoor Thermostat, or 2 Outdoor with Smart Heat Thermostats CARRIER DUALFUEL THERMOSTAT MODELDF CARRIER DUALPUEL THERMOSTAT MODELDF SINGLE-STAGE FURNACE HEATPUMP 24 VAC HOT [_]-- -4® ..... FAN [_-- ----H_ FURNACE _. ...... ----I-E3..... _- I E_-" RVS HEATING _] [_-" FAN [_- FURNACE LO [-W'_I-- ' _H_mi N/A 24 VAC COM 24 VAC HOT COMPRESSOR _-2]--" ............. _,cL__ ! RVS COOLING HEAT PUMP m m _OMPRESSOR TWO-STAGE OR VARIABLE SPEED FURNACE RVS COOLING FURNACE HI _ 24 VAC COM E_-- RVS HEATING [_7 q-J-IZ] ---_1_ ...... See notes 7 and 8 RVS SENSING See note 7 O°TDOOR [--13D'- RVS SENSING OOTOOOR 1--13D-" ...... ...... TEMPERATURE OUTDOOR SENSOR I TEMPERATURE OUTDOOR SENSOR ] A97539 A97538 Fig. 12--Typical WIRING DIAGRAM I. CARRIER RATE 24-v Circuit Connections NOTES: THERMOSTAT FOR 2. WIRING MODEL MUST WIRING NUMBERS CONFORM BEGINNING ARE WITH TO NEC OR LOCAL TECTION. CONNECT 24-V PROVIDED STRIPPED LEADS. LIQUID-LINE LEGEND DIAGRAMS 3. SOME UNITS ARE EQUIPPED WITH PERATURE SWITCH, OR 5-MINUTE 4. A using Carrier Model DF Thermostat with Single- or 2-Stage Furnace ONLY ACCU- TSTAT ..... CODES. PRESSURE SWITCH(ES), COMPRESSOR CYCLE FIELD WIRING TO TEMPRO- VALVE LIMIT. SEE FACTORY CYCLE IS REQUIRED CONFIGURED PROTECTION THERMOSTAT ON SOME AND WITH 5-MINUTE 4 CYCLES INSTALLATION PER INSTRUCTIONS HR STAGE ELECTRIC RESISTANCE INSTALLATION HEAT, CONSULT EXAMPLE: O/W2 MEANS O OAV2 MEANS W2 OUTDOOR TEMPERATURE SENSOR DUAL FUEL INSTALLATIONS. NALS 8. YI WIRE MUST AND BETWEEN OAV2 MUST AND LETTER BE AqTACHED ON IN ALL L THERMOSTAT TERMI- BE PRESENT. O CONNECTIONS EXIST OR TERMINAL. OUTDOOR INSTRUCTIONS. 7. FOR DUAL FUEL THERMOSTATS, UNDERLINED DUAL TERMINAL INDICATES ITS USAGE. JUMPER EMERGENCY HEAT RELAY SUPPLEMENTAL HEAT RELAY A97413 THERMOSTAT FOR THERMOSTAT FOR DETAILS. 6. TO FIELD SPLICE CONNECTION OUTDOOR SOLENOID ARE COMPRESSOR /_ 24-V FIELD WIRING FACTORY- UNITS. 5. THERMOSTATS 24-V FACTORY WIRING _ _ _ MAY ONLY TO 2-STAGE BE A WIRE FURNACES RATHER THAN MAY NOT A SCREW 9 Use furnace translormer, fan coil transformcr, or accessory transformer for control power, 24-v/40-va minimum. SEQUENCE NOTE: Del¥ost NOTE: Use of available 24-v accessories may exceed the minimum 40-va power requirement. Determine total transformer loading and increase the transformer capacity or split the load with an accessory transformer as required. lockout timer 10--Compressor Crankcase When equipped with a crankcase minimum of 24 hr before starting only, set thermostat outdoor unit. A crankcase to OFF heater is required With power may be equipped be initiated with 5 minute UlX)n any interruption of supplied to indoor and outdoor units+ transfi3rmer is Cooling On a call lot cooling, R-G. Circuit thermostat R-O energizes makes reversing circuits valve, R-O, switching R-Y, and it to cooling position. Circuit R-Y energizes comactor, starting outdoor fan motor and compressor circuit. R-G energizes indoor unit blower heater, furnish power to heater a unit. To furnish power to heater electrical if refi+igerant board may energized. Heater and close control which power. ----)IMPORTANT: Check factory wiring and wire connections to ensure terminations are secured properly. Check wire routing to cnsure wires are not in contact with tubing, sheet metal, etc. _> Step OF OPERATION disconnect tubing is longer relay, starting When to indoor thermostat contactor blower motor is satisfied, and blower relay. on high speed. its contacts open, Compressor de-energizing and motors the should stop. NOTE: If indoor unil is equipped with a time-dehly relay circuit, the blower runs an additional 90 sec to increase system efficiency. than 50 ft. Heating Step 11---Install Electrical Accessories Refer to the individual instructions packaged with kits or accessories when installing. On a call for heating, thermostat Circuit contactor, R-Y energizes compressor. blower Step 12--Start-Up motor Should V!I [,-I:llliI.] Circuit To prevent compressor damage or personal injury, observe the following: • Do not overcharge system with refrigerant. • Do not operate unit in a vacuum or at negative pressure. • Do not disable low-pressure switch. In scroll compressor applications: • Dome temperatures may be hot. sequencer, bringing providing electrical (field-installed When continue potential thermostat control between minutes. defrost The electronic energized Defrost motor warming and 4. After 2. Unit caps is shipped with valve stem(s) front seated (closed) and installed. Replace stem caps after system is opened to rel¥igeram wrench 3. Close flow. Replace an additional electrical 4. Set room is below thermostat indoor AUTO Check system tube scrvice finger-tight valves. and tighten should defrost, to energize to desired 5. Short with to HEAT refrigerant 6. When or COOL Operate Be sure set point and Ihn control unit lot sequencer (if uscd). thermostat circuit open, and motors and bring de-energizing should stop. control to ON which edge) includes a time period factory set at 90 is is closed. to cooling mode except heat is turned that outdoor on to fan continue space. the defrost thermostat must be closed. This can as follows: m outdoor outdoor unit. fan unit in heating motor lead [¥om OF2 lead to prevent mode, allowing on control grounding. li-ost to accumulate on coil. a few minutes drop below in heating closing mode. liquid point of defrost between you line tempenuure thermostat (ap- 30*F). speed-up hear terminals reversing screwdriver immediately: normal 10-minute defrost temperature. as desired. a heat and heat. driver. (Scc Fig. 13.) This reduces 1/256th of original time. (See Table system. temperature. through energizes cycle start only when contactor thermostat (See Fig. 13.) Tape proximately 1/12 turn. ambient mode, and vapor caps disconnects 5. Set room thermostat or liquid made electric located at board second-stage conditioned outdoor pressure. back scat (open) is (30, 50, or 90 minutes), mode is identical To initiate and avoid I. Fully starting of outdoor its contacts timer and defrost stops 3. Restart suction electric is a time/temperature and defrost board. negative heater setting All heaters cycles 2. Disconnect a system and relay, R-W2 close to complete (quick-connects I. Turn off power pumpdown contacts is satisfied, be accomplished to properly R-W2 Circuit to second falls below and sequencer. field-selectable To prevent personal injury wear safety glasses, protective clothing, and gloves when handling refrigerant and observe the following: • Back seating service valves are not equipped with Schrader valves. Fully back seat (counter clockwise) valve stem before removing gage port cap. • Front seating service valves are equipped with Schrader valves. steps fall. on first bank of supplemental option), The deli'ost these blower and R-G. motor Defrost g!] ["!Alli['lTI Follow indoor bulb. bank of supplemental contactor fan to thermostat temperature on second R-Y outdoor on high speed. room If outdoor circuits R-G energizes temperature second-stage H makes starting valve with a flat bladed the 3.) change timing screw- sequencc position+ to remove otherwise, control will terminate cycle in approximately 2 sec. NOTE: Length of defrost cycle is dependent on the length of time it takes to remove screwdriver from test pins after reversing valve 15 minutes. has shifted. charge. 10 6. To obtain required o _ o II line pressure, higher lower. @ subeooling add is if temperature is (°F) REQUIRED SUBCOOLING TEMPERATURE (°F ) 5 10 15 20 134 71 66 61 56 141 74 69 64 59 148 77 72 67 62 156 8O 75 7O 65 163 83 78 73 68 171 86 81 76 71 179 89 84 79 74 187 92 87 82 77 196 95 90 85 80 205 98 93 88 83 214 101 96 91 86 223 104 99 94 89 233 107 102 97 92 243 110 105 100 95 253 113 108 103 98 264 116 111 106 101 104 A91444 Fig. 13---Defrost Control Ta ble 3_Defrost Control Speed-Up Timing Sequence PARAMETER liquid temperature (PSIG) CES0110063, CES0130024 3Q-minute cycle at a specific line Liquid-Line Temperature LIQUID PRESSURE AT SERVICE VALVE MAXIMUM (MINUTES) 33 if liquid than indicated or reclaim refrigerant Allow a tolerance of ± 3°F. Table 4--Required MINIMUM (MINUTES) 27 temperature refrigerant SPEED-UP (NOMINAL) 274 119 114 109 7 sec 285 122 117 112 107 50-minute cycle 45 55 12 sec 297 125 120 115 110 90-minute cycle 99 11 309 128 123 118 113 cycle 81 9 21 sec 10-mlnute 2 sec 321 131 126 121 116 4,5 55 1 sec 331 134 129 124 119 346 137 132 127 122 359 140 135 130 125 5 minutes 7. Unit will remain or until defrost temperature in defrost for remainder thermostat of liquid reopens of defrost at approximately 13--Check Factory charge cooling mode, in heating NOTE: is shown Only refer to Heating lan motor Units with Indoor Pistons lead Units installed with indoor superheat method. charge plate. To check Procedure. Check Chart charge To check or subcooling charging must be weighed Procedure. I. Operate charge. oz!ft of 3/8-in. conditions in accordance liquid line are not or below charging with the unit a minimum of 10 minutes before checking 2. Measure suction pressure by attaching a gage to suction valve service port. with unit rating above pistons require The following procedure is valid when indoor airflow is within ± 21% of its rated CFM. in charge PROCEDURE If superheat plate ± 0.6 respectively. on unit rating refer to Cooling ONLY favorable, 80°F coil Charge mode, COOLING time line. 8. Turn off power to outdoor unit and reconnect to OF2 on control beard. (See Fig. 13.) Step cycle 15 ft 3. Measure suction temperature by attaching an accurate thermistor type or electronic thermometer to suction line at service EXAMPLE: valve, To calculate additional charge required for a 25-ft line set: 25 ft - 15 ft = 10 ft X 0.6 oz/ft = 6 oz of additional Units with Cooling Units installed subcooling Mode with cooling charge TXV unit outdoor air dry-bulb 5. Measure indoor air (entering ture with a sling mode TXV require charging with the 6. RelEr method. 1. Operate 4. Measure to Table entering a minimum of 10 minutes before checking 7. Reler liquid service gage to service 3. Measure liquid valve pressure an accurate and port. line 4. Refer to unit rating 5. Refer to Table temperature by attaching thermometer plate lbr required 4. Find the point intersects wet-bulb tempera- psychrometer. 5. Find air wel-bulb outdoor temperature temperature. and evaporator At this intersection, note to Table 6. Find superheat suction pressure. temperature At this intersection, located note in item 6 suction line temperature. thermistor type or electronic outdoor coil. temperature by attaching with thermometer. coil) superheat. charge. 2. Measure temperature indoor measured subeooling where liquid an to liquid 8. If unit has a higher temperature, reached. temperature. required service accurate line near add suction refrigerant line until temperature charted than charted temperature is 9. If unit has a lower suction line temperature than charted temperature, reclaim refrigerant until charted temperature is reached. subcooling valve pressure. II Table 5--Superheat EVAPORATOR OUTDOOR TEMP (°F) ENTERING AiR TEMPERATURE ('F WB) 50 52 54 56 58 60 62 64 66 68 70 72 74 76 55 9 12 14 17 20 23 26 29 32 35 37 40 42 45 6O 7 10 t2 16 18 21 24 27 30 35 35 38 40 43 65 6 10 13 16 19 21 24 27 30 33 36 38 41 7O -- 7 10 13 16 19 21 24 27 30 33 36 39 78 -- -- 6 9 12 15 10 21 24 26 31 34 37 -- -- -- 5 8 12 15 16 21 25 26 3! 35 ..... 8 11 15 19 22 26 30 33 ..... 5 9 13 16 20 24 27 31 6 10 14 18 22 25 29 8 12 15 20 23 27 5 9 13 17 22 26 6 11 15 20 25 6 14 t8 23 80 85 90 ...... 96 ........ tOO 106 ....... 110 ....... 115 ......... -- Where a dash a )ears, do not attempt to charge system under these conditions NOTE: Superheat °F is at low-side sewice port. Table 6---Required SUCTION TEMP (°F) 0 2 PRESSURE AT SERVICE (°F) PORT (PSlG) 67,1 70.0 73.0 76.0 79.2 82.4 85.7 35 37 39 41 43 45 47 49 51 37 39 41 43 45 47 49 51 53 45 47 47 49 51 53 55 49 51 53 55 57 51 53 55 57 59 53 55 57 59 61 4 39 41 43 6 8 41 43 45 43 45 47 10 45 47 49 49 51 12 14 47 49 51 53 55 57 59 6f 63 49 51 63 55 57 59 61 63 65 61 63 65 67 51 53 55 57 59 18 53 55 57 61 63 65 67 69 20 55 57 59 59 61 63 65 67 69 71 69 71 73 59 61 63 65 67 59 61 63 65 67 69 71 73 75 61 63 65 69 71 73 75 77 63 65 67 67 69 71 73 75 77 79 71 73 75 77 79 81 22 24 57 26 28 30 32 65 67 69 67 69 71 73 75 77 79 81 83 34 36 69 71 73 77 79 81 83 85 71 73 75 75 77 79 81 83 85 87 38 73 75 77 79 81 83 85 87 89 4O 75 77 79 81 83 86 87 89 91 HEATING CHECK To check system CHART PROCEDURE operation Heating Check a correct Chart relationship during heating cycle, refer on outd(x3r unit. This chart indicates exists between system not be correct. Do not use chart When charging must be weighed of 3/8-in. liquid is to operating to the whether pressure refrigerant adjust necessary in accordance during additional charge required 25 ft - 15 ft = 10 ft X 0.6 oz/ft 1998 CARRIER Manufacturer reserves PC 101 I. Securely fasten all panels and covers. plate + 0.6 I_,r a 25-ft line set: = 6 oz of additional the dght to discontinue, No. 563 718 3. Leave User's Manual with owner. Explain system operation and periodic maintenance requirements outlined in manual. 4. Fill out Dealer Installation Checklist and place in customer file. CARE AND MAINTENANCE season, 15 ft respectively. For continuing high performance and to minimize possible equipment failure, periodic maintenance must be pertbrmed on this equipment. Frequency of maintenance may vary depending upon geo_m'aphic areas, such as coastal applications. charge Corp. - 7310 W. Morris St. • Indianapolis, Catalog Checks Before leaving job, be sure to do the following: and EXAMPLE: To calculate IMPORTANT: charge. heating with unit rating line ab_we or below ---)' Step 14_Final 2. Tighten service valve stem caps to 1/12-turn past finger tight. air temperature entering indoor and outdoor units. If pressure and temperature do not match on chart, system refrigerant charge may Copyright Tube Temperature 64.2 10. If outdoor air temperature or pressure at suction valve changes, charge to new suction line temperature indicated on chart. charge slugging may OCCur. Charge must be weighedin. 61.5 16 NOTE: or refrigerant Suction-Line SUPERHEAT oz/ft Charging IN 46231 38ykc2si or change at any time, specifications Printed in U.S.A or designs Form 38YKC_2SI without notice and without Incurring Pg 12 11-96 obligatlorls. Replaces: 38YKC-1SI