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Carrier 38EYA manual

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Table of contents for the manual

  • Page 1

    38EYA 12 SEER Split-System Heat Pump with Puron® Installation and Start-Up Instructions NOTE: Read the entire instruction manual before starting the installation. This symbol → indicates a change since the last issue. SAFETY CONSIDERATIONS Improper installation, adjustment, alteration, service, maintenance, or use can cause explosion, fire, elec[...]

  • Page 2

    INSTALLATION IMPORTANT: Specifications for this unit in residential new construction market require using the outdoor unit, indoor unit, refrigerant tubing sets, metering device, and filter drier listed in presale literature. There can be no deviation. Consult the Appli- cation Guideline and Service Manual for Residential Split-System Air Condition[...]

  • Page 3

    Step 5 — Elevate Unit Accumulation of water and ice in base pan may cause equipment damage. Elevate unit per local climate and code requirements to provide clearance above estimated snowfall level and ensure adequate drainage of unit. Step 6 — Check Indoor Expansion Device For proper unit operation and reliability, units must be installed with [...]

  • Page 4

    Do not leave system open to atmosphere any longer than minimum required for installation. POE oil in compressor is extremely susceptible to moisture absorption. Always keep ends of tubing sealed during installation. If ANY refrigerant tubing is buried, provide a 6 in. vertical rise at service valve. Refrigerant tubing lengths up to 36 in. may be bu[...]

  • Page 5

    wrench an additional 1/12 turn (15 ft-lb). DO NOT OVER- TIGHTEN. REFRIGERANT TUBING AND FILTER DRIER Installation of filter drier in liquid line is required. Connect vapor tubing to fittings on outdoor unit vapor service valves. Connect liquid tube to filter drier. (See Table 1 and Fig. 8.) Use refrigerant grade tubing. Connect other end of filter [...]

  • Page 6

    1. Pump system down to 28 in. of mercury and allow pump to continue operating for an additional 15 minutes. 2. Close service valves and shut off vacuum pump. 3. Connect a nitrogen cylinder and regulator to system and open until system pressure is 2 psig. 4. Close service valve and allow system to stand for 1 hr. During this time, dry nitrogen will [...]

  • Page 7

    24 VAC HOT R G W/W1 Y/Y2 O/W2 R W2 W3 E RVS COOLING C B S1 S2 W2 CARRIER PROGRAMMABLE THERMOSTAT MODEL HP FA, FB, FX FAN COIL HEAT PUMP G Y1/W2 L R O INDOOR FAN HEAT STAGE 2 COOL/HEAT STAGE 1 NOT USED 24 VAC COM NOT USED TROUBLE OPTIONAL OUTDOOR SENSOR CONNECTION Y C C * * * IF AVAILABLE * A97561 A97563 24 VAC HOT R G W/W1 Y/Y2 O/W2 R W3 W2 RVS COO[...]

  • Page 8

    24 VAC HOT R C W2 Y G R C RVS COOLING C W2 OTHER BRAND HP THERMOSTAT FA, FB, FX FAN COIL HEAT PUMP G O E W2 E W3 R Y 24 VAC COM HEAT STAGE 2 COOL/HEAT STAGE 1 INDOOR FAN EMERGENCY HEAT O * * * IF AVAILABLE * A97577 A97579 24 VAC HOT R C W2 Y G R W3 W2 G RVS COOLING E W2 OTHER BRAND HP THERMOSTAT TWO OUTDOOR THERMOSTATS FA, FB, FX FAN COIL HEAT PUMP[...]

  • Page 9

    G R Y/Y2 O/W2 CARRIER DUAL FUEL THERMOSTAT MODEL DF SINGLE-STAGE FURNACE HEAT PUMP G Y W C Y R O W2 Y1/W2 C B L S1 S2 R C FURNACE COMPRESSOR FAN 24 VAC HOT 24 VAC COM N/A RVS HEATING RVS SENSING OUTDOOR SENSOR CONNECTION OUTDOOR TEMPERATURE SENSOR W/W1 See note 7 RVS COOLING A97538 G R Y/Y2 O/W2 CARRIER DUAL FUEL THERMOSTAT MODEL DF TWO-STAGE OR VA[...]

  • Page 10

    24 VAC HOT R G W/W1 Y/Y2 O/W2 RVS COOLING C B S1 S2 CARRIER PROGRAMMABLE THERMOSTAT MODEL HP FA, FB, FX FAN COIL WITH SMART HEAT HEAT PUMP Y1/W2 L R C Y G O W2T W3 W2D Y 0 R C O W2 Y INDOOR FAN HEAT STAGE 2 COOL/HEAT STAGE 1 NOT USED 24 VAC COM NOT USED TROUBLE OPTIONAL OUTDOOR SENSOR CONNECTION JW1 A97566 24 VAC HOT R G W/W1 Y/Y2 O/W2 RVS COOLING [...]

  • Page 11

    24 VAC HOT R C Y G O RVS COOLING W2 OTHER BRAND HP THERMOSTAT FA, FB, FX FAN COIL WITH SMART HEAT HEAT PUMP E R C Y G O W2T W3 W2D Y 0 R C O W2 Y INDOOR FAN EMERGENCY HEAT COOL/HEAT STAGE 1 24 VAC COM HEAT STAGE 2 JW1 A97581 24 VAC HOT R C Y G O RVS COOLING W2 OTHER BRAND HP THERMOSTAT FA, FB, FX FAN COIL WITH SMART HEAT HEAT PUMP E R C Y G O W2T W[...]

  • Page 12

    Back seating service valves are not equipped with Schrader valves. Fully back seat (counter clockwise) valve stem before removing gage port cap. Do not vent refrigerant to atmosphere. Recover during system repair or final unit disposal. Follow these steps to properly start up the system. 1. Fully back seat (open) liquid and vapor service valves. 2.[...]

  • Page 13

    • 3 – phase scroll compressors are rotation sensitive. • A flashing LED on phase monitor indicates reverse rotation. (See Fig. 18 and Table 3.) • This will not allow contactor to be energized. • Disconnect power to unit and interchange 2 field wiring leads on unit contactor. SEQUENCE OF OPERATION NOTE: Defrost control board is equipped wi[...]

  • Page 14

    Step 14 — Check Charge UNIT CHARGE Factory charge is shown on unit rating plate. To check charge in cooling mode, refer to Cooling Only Procedure. To check charge in heating mode, refer to Heating Check Chart Procedure. COOLING ONLY PROCEDURE NOTE: If superheat or subcooling charging conditions are not favorable, charge must be weighed in accorda[...]

  • Page 15

    Step 15 — Final Checks IMPORTANT: Before leaving job, be sure to do the following: 1. Securely fasten all panels and covers. 2. Tighten service valve stem caps to 1/12-turn past finger tight. 3. Leave User ’ s Manual with owner. Explain system operation and periodic maintenance requirements outlined in manual. 4. Fill out Dealer Installation Ch[...]

  • Page 16

    PURON ® (R-410A) QUICK REFERENCE GUIDE • Puron ® refrigerant operates at 50-70 percent higher pressures than R-22. Be sure that servicing equipment and replacement components are designed to operate with Puron ® . • Puron ® refrigerant cylinders are rose colored. • Recovery cylinder service pressure rating must be 400 psig. DOT 4BA400 or [...]