Инструкция на Компрессорно-конденсаторные блоки Carrier серии 38AU...

Текст инструкции

1. Стр. 1 38AU

   Air-Cooled Condensing Units 50 Hz with Puron® (R-410A) Refrigerant Sizes 07 - 14 Installation, Start-Up and Service Instructions CONTENTS SAFETY CONSIDERATIONS . . . . . . . . . . . . . . . . . . . . . . . 1 INSTALLATION GUIDELINES. . . . . . . . . . . . . . . . . . . . . . . 2 INSTALLATION . . . .…

2. Стр. 2 Acid test – If the existing system is being replaced because of a

   compressor electrical failure, assume acid is in system. If system is being replaced for any other reason, use an approved acid test kit to determine acid level. If even low levels of acid are detected, install a 100 percent activated alumina suctionline filter drier in addition to the replacement…

3. Стр. 3 UNIT

4. Стр. 4 Table 1A — Physical Data — 38AUZ*07-08 Units — 50 Hz English

   UNIT SIZE 38AU NOMINAL CAPACITY (tons) OPERATING WEIGHTS (lb) Aluminum-Fin Coils Z*07 6 Z*08 7.5 328 353 R-410A REFRIGERANT TYPE‡ Operating Charge, Typical (lb)† 9.0 12.3 Shipping Charge (lb) 4.4 4.9 COMPRESSOR Qty...Type 1...Scroll OUTDOOR FANS Qty...Rpm 2...1100 Motor Hp 1/ Diameter 22 Nominal…

5. Стр. 5 Table 1B — Physical Data — 38AUZ*07-08 Units — 50 Hz SI

   UNIT SIZE 38AU NOMINAL CAPACITY (kW) Z*07 21.1 OPERATING WEIGHT (kg) Aluminum-Fin Coils 149 Z*08 26.4 160 R-410A REFRIGERANT TYPE‡ Operating Charge, Typical (kg)† 4.1 5.6 Shipping Charge (kg) 2.0 2.2 COMPRESSOR Qty...Type 1...Scroll OUTDOOR FANS Qty...r/s Motor Hp NEMA 2...18 1/ 4 Diameter (mm) 560…

6. Стр. 6 Table 2A — Physical Data — 38AUD*12-14 Units — 50 Hz English

   UNIT SIZE 38AU NOMINAL CAPACITY (tons) D*12 10 OPERATING WEIGHTS (lb) Aluminum-Fin Coils 418 D*14 12.5 431 R-410A REFRIGERANT TYPE‡ Operating Charge A/B, Typical (lb)† 7.5/7.5 11.2/11.2 Shipping Charge A/B (lb) 3.0/3.1 3.7/3.9 COMPRESSOR Qty...Type 2...Scroll OUTDOOR FANS Qty... RPM 2...1100 Motor…

7. Стр. 7 Table 2B — Physical Data — 38AUD*12-14 Units — 50 Hz SI

   UNIT SIZE 38AU NOMINAL CAPACITY (kW) D*12 35.1 OPERATING WEIGHT (kg) Aluminum-Fin Coils 190 D*14 44 196 R-410A REFRIGERANT TYPE‡ Operating Charge A/B, Typical (kg)† 3.4/3.4 5.1/5.1 Shipping Charge A/B (kg) 1.3/1.4 1.7/1.8 COMPRESSOR Qty...Model 2...Scroll OUTDOOR FANS Qty... r/s 2...18 Motor Hp NEMA…

8. Стр. 8

   A U Z A A 0 G 9 – 0 A 0 A 0 Model Type Packaging 38AU= Carrier Condensing Unit Puronr R--- 410A Refrigerant 1 = LTL 0 = Standard Type of Coil Z = Single Circuit, A/C Scroll Compressor D = Dual Circuit, A/C Scroll Compressor Electrical Options A = None C = Non-Fused Disconnect Service Options 1 = 0 =…

9. Стр. 9 Matching 38AU Model To Evaporator Coil –

   Although unit is weatherproof, avoid locations that permit water from higher level runoff and overhangs to fall onto the unit. The Model 38AUZ is a single-circuit unit design, requiring one set of refrigeration piping. This model can be connected to an evaporator coil with one circuit or with two…

10. Стр. 10 faces, plywood sheets may be placed against the sides of the

    unit, behind cables. Run cables to a central suspension point so that the angle from the horizontal is not less than 45 degrees. Raise and set the unit down carefully. If it is necessary to roll the unit into position, mount the unit on longitudinal rails, using a minimum of 3 rollers. Apply force…

11. Стр. 11 Table 5 — 38AUZ 07-08 Piping Recommendations (Single-Circuit Unit)

    R-410A Equivalent Length Ft 0-38 38-75 75-113 113-150 150-188 m 0-12 12-23 23-34 34-46 46-57 Model Typ Linear ft 0-25 25-50 50-75 75-100 38AUZ*07 Liquid Line 3/ 8 3/ 8 1/ 2 1/ 2 1/ 2 5/ 8 1/ 2 5/ Max Lift Suction Line 7/ 7/ 8 1-1/8 1-1/8 1-1/8 11.1 13.1 15.0 1/ 1/ 38AUZ*08 8 1-1/8 Charge (lbs) 8.4…

12. Стр. 12 INSULATE SUCTION LINES — Apply closed-cell tubular

    insulation to all suction lines between evaporator coil connection and 38AU unit’s suction service valve. Hot Gas Bypass – Hot gas bypass, if used, should be introduced before the evaporator. (A bypass route that also bypasses the evaporator circuit may lead to oil trapping in the evaporator circuit…

13. Стр. 13 Table 9 — Refrigerant Specialities Part Numbers

    LIQUID LINE SIZE (in.) LIQUID LINE SOLENOID VALVE (LLSV) LLSV COIL SIGHT GLASS 3/ 8 ALC-066208 AMG-24/50-60 HMI-1TT3 1/ 2 ALC-066209 AMG-24/50-60 HMI-1TT4 5/ 8 ALC-066212 AMG-24/50-60 HMI-1TT5 FILTER DRIER Provided with unit See Table 8 38AUD units require TWO sets of parts. Refer to Table 9 for…

14. Стр. 14 INDOOR

    COIL CKT 2 Example: 38AUZ*08 60-ft (18.3 m) linear line length Equivalent line length 90-ft (27.4 m) Liquid Lift: 20-ft (6.1 m) EQUALIZER LINE TXV SENSING BULB AIRFLOW 15 DIAMS MIN 10 DIAMS TXV CKT B 8 DIAMS MIN TXV SENSING BULB 15 DIAMS MIN AIRFLOW 10 DIAMS SIGHT GLASSES FILTER DRIERS DROP CONTROL…

15. Стр. 15 NOTE: TEST LEADS - Unit may be equipped with short

    leads (pigtails) on the field line connection points on contactor C or optional disconnect switch. These leads are for factory run-test purposes only; remove and discard before connecting field power wires to unit connection points. Make field power connections directly to line connection pressure…

16. Стр. 16 Convenience

    Outlet GFCI Pwd-CO Fuse Switch Pwd-CO Transformer Control Box Access Panel UNIT CONNECT PRIMARY TRANSFORMER VOLTAGE AS CONNECTIONS TERMINALS Fig. 12 — Convenience Outlet Location Non-powered type: This type requires the field installation of a general-purpose 125-volt 15-A circuit powered from a…

17. Стр. 17 COVER – WHILE-IN-USE

    WEATHERPROOF For wire runs up to 15 m (50 ft.), use no. 18 AWG (American Wire Gage) insulated wire (35°C minimum). For 15 to 23 m (50 to 75 ft.), use no. 16 AWG insulated wire (35°C minimum). For over 23 m (75 ft.), use no. 14 AWG insulated wire (35°C minimum). All wire sizes larger than no. 18 AWG…

18. Стр. 18 ergize economizer control relay and electric heater contactors

    or relays. Maximum available power is 20 va. Check concurrent loadings by external control devices. If the maximum concurrent loading exceeds 20 va, purchase and install the accessory Transformer-Relay package (available for 208/230 and 460-v units). Control transformer TRAN3 provides control power…

19. Стр. 19 PRE-START-UP

    START-UP 38AU Units IMPORTANT: Before beginning Pre-Start-Up or Start-Up, review Start-Up Checklist at the back of this book. The Checklist assures proper start-up of a unit and provides a record of unit condition, application requirements, system information, and operation at initial start-up. The…

20. Стр. 20 Advanced Scroll Temperature Protection (ASTP)

    Start Unit A label located above the terminal box identifies Copeland Scroll compressor models that contain this technology. See Fig. 17. Advanced Scroll Temperature Protection (ASTP) is a form of internal discharge temperature protection, that unloads the scroll compressor when the internal…

21. Стр. 21 Fig. 19 — 38AUZ*07 Charging Chart

    Fig. 20 — 38AUZ*08 Charging Chart 21

22. Стр. 22 Fig. 21 — 38AUD*12 Charging Chart

23. Стр. 23 Fig. 22 — 38AUD*14 Charging Chart

24. Стр. 24 Fig. 23 — Typical 38AUZ Wiring Diagram (50Hz Single Circuit Unit Shown)

25. Стр. 25 Fig. 24 — Typical 38AUD Wiring Diagram (50Hz Dual Circuit Unit Shown)

26. Стр. 26 OPERATING SEQUENCE

    ROUTINE SYSTEM MAINTENANCE These items should be part of a routine maintenance program, to be checked every month or two, until a specific schedule for each can be identified for this installation: Base Unit Controls Indoor (Supply) Fan The indoor fan contactor (IFC) is remotely located at the fan…

27. Стр. 27 run-offs, and protect drop cloth from tears caused by tools

    or components. 3. Place terry cloth shop towel inside unit immediately under component(s) to be serviced and prevent lubricant run-offs through the louvered openings in the base pan. 4. Perform required service. 5. Remove and dispose of any oil contaminated material per local codes. Refrigeration…

28. Стр. 28 Comfort Alert Diagnostic Module

    POWER (GRN) The Comfort Alert Diagnostic Module (CADM) monitors and analyzes data from the Copeland Scroll® three-phase compressor and the thermostat demand. The CADM also provides a 3-minute anti-recycle time delay to compressor cycling. The CADM detects causes for electrical and system related…

29. Стр. 29 Table 13 — LED Status Codes

    Status LED Green “POWER” Red “TRIP” LED On Solid Status LED Description Module has power Thermostat demand signal Y is present, but the compressor is not running. Status LED Troubleshooting Information Supply voltage is present at module terminals 1. Compressor protector is open 2. Condensing unit…

30. Стр. 30 Table 14 — CADM Troubleshooting

    Miswired Module Indication Recommended Troubleshooting Action Green LED is not on, module does not power up Determine if both R and C module terminals are connected. Verify voltage in present at module’s R and C terminals. NOTE: The CADM requires a constant nominal 24VAC power supply. The wiring to…

31. Стр. 31 Condenser Fans

    Service Valves Fig. 27 — Typical Exterior, Single-Circuit Unit (38AUZ*08 shown) Outdoor Coil 32LT Sensor Typical Location HPS LPS High Flow Access Port Fig. 28 — Typical Interior, Single-Circuit Unit (38AUZ*08 shown) 31

32. Стр. 32 Condenser Fans

    Service Valves Fig. 29 — Typical Exterior, Two-Circuit Unit (38AUD*14 shown) Outdoor Coil HPS Motormaster Sensor Location LPS High Flow Access Ports Fig. 30 — Typical Interior, Two-Circuit Unit (38AUD*14 shown) 32

33. Стр. 33 NOVATION™ Coil Cleaning and Maintenance —

    To clean the NOVATION condenser coil, chemicals are NOT to be used; only water is approved as the cleaning solution. Only clean potable water is authorized for cleaning NOVATION condensers. Clean the coil as follows: 1. Turn off unit power. 2. Remove screws holding rear corner posts and top cover in…

34. Стр. 34 TROUBLESHOOTING

    PROBLEM COMPRESSOR DOES NOT RUN Contactor Open 1. Power off. 2. Fuses blown in field power circuit. 3. No control power. 4. Thermostat circuit open. 5. Safety device lockout circuit active. 6. Low-pressure switch open. 7. High-pressure switch open. 8. Compressor overtemperature switch open. 9. Loose…

35. Стр. 35 TROUBLESHOOTING (cont)

    PROBLEM COMPRESSOR RUNNING BUT COOLING INSUFFICIENT Suction Pressure Low 1. Refrigerant charge low. 2. Head pressure low. 3. Air filters dirty. 4. Expansion valve power head defective. 5. Indoor coil partially iced. 6. Indoor airflow restricted. Suction Pressure High 1. Unloaders not functioning 2.…

36. Стр. 36 APPENDIX A

    • Do not install a suction-line filter drier in liquid-line. • POE oils absorb moisture rapidly. Do not expose oil to atmosphere. • POE oils may cause damage to certain plastics and roofing materials. • Wrap all filter driers and service valves with wet cloth when brazing. • A factory approved…

37. Стр. 37 APPENDIX C

    MOTORMASTER SENSOR LOCATIONS Sensor Sensor 508 mm (20 in) 254 mm (10 in) Fig. 32 — 38AUZ*07-08 Motormaster Sensor Locations Fig. 33 — 38AUD*12-14 Motormaster Sensor Locations 37

38. Стр. 38 Copyright 2009 Carrier Corp • 7310 W. Morris St. • Indianapolis, IN 46231

    Printed in U.S.A. Edition Date:12/09 Manufacturer reserves the right to change, at any time, specifications and designs without notice and without obligations. 38 Catalog No: 38AU-C01SI Replaces: New

39. Стр. 39 III. START UP

    START-UP CHECKLIST I. PRELIMINARY INFORMATION OUTDOOR: MODEL NO. SERIAL NO. INDOOR: AIR HANDLER MANUFACTURER MODEL NO. SERIAL NO. ADDITIONAL ACCESSORIES II. PRE-START-UP OUTDOOR UNIT IS THERE ANY SHIPPING DAMAGE? (Y/N) IF SO, WHERE: WILL THIS DAMAGE PREVENT UNIT START-UP? (Y/N) CHECK POWER SUPPLY.…

40. Стр. 40 CHECK OUTDOOR UNIT FAN SPEED AND RECORD

    AFTER AT LEAST 10 MINUTES RUNNING TIME, RECORD THE FOLLOWING MEASUREMENTS: Circuit A Circuit B SUCTION PRESSURE SUCTION LINE TEMP LIQUID PRESSURE LIQUID LINE TEMP ENTERING OUTDOOR UNIT AIR TEMP LEAVING OUTDOOR UNIT AIR TEMP INDOOR UNIT ENTERING-AIR DB (dry bulb) TEMP INDOOR UNIT ENTERING-AIR WB (wet…

Схемы, таблицы и рисунки — в просмотре документа выше. Клик по номеру страницы открывает её в просмотре.