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Schreiber Engineering 30AC Installation Operation & Maintenance

Schreiber engineering 30ac 220/1 chiller
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Tel: (562) 926-3855
Fax: (562) 926-0969
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R134A
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Summary of Contents for Schreiber Engineering 30AC

  • Page 1: Caution

    & & 30AC Model: 220/1 Voltage: R134A Ref. Charge: Tel: (562) 926-3855 Fax: (562) 926-0969...

  • Page 2: Table Of Contents

    TABLE OF CONTENTS Model ………………………………….……………………………….………………………….. Caution ………………………………….…………………………….…………………………... 30AC Specifications ……………………………………………………………………………… Starting Check List …………………….…………………………………………………………. Wiring Diagram ………………………….……………………………………………………….. Instruction/Information …………………………………………………………………………… Installation Instructions ………………………………………………………………………….. Operation ………………………..………………………………………………………………… Inside Your Chiller .……………………...……………………………………………………….. Electrical System ……….……………………………………………………….……………… Refrigeration System …………………………………………………………………………….. Chilled Water System ……………………………………………………………………………. Special Features ………………………………………………………………………………….
  • Page 3 30AC Specifications: GENERAL Max rated ambient temp. 95 °F Min. Chilled water temp. 44 °F Max Water Temp. 85 °F REFRIGERATION Refrigerant R134A Charge .75 lbs. Compressor HP 1/3 HP ELECTRICAL Voltage 220/1 Full Load Amps PUMP Pump Specifications: 2.5 g.p.m. @ 60 p.s.i.

  • Page 4: Model

    STARTUP CHECKLIST • POWER SUPPLY: Verify that the power you are supplying to the chiller matches the requirements as stated on the nameplate. Hooking chiller up to the wrong power supply will damage system components and void the warranty. • FILL THE RESERVOIR: Using the fill port on the top of the chiller add water until the level reaches the red line marked on the sight glass.

  • Page 5: Instruction/Information

    Schreiber Engineering – Air Cooled Water Chiller Model 30 AC – 230/1 This unit comes completely wired for 230/1. To test unit as follows. NOTE: Make sure that the switch on the panel is off. Connect close loop water system as marked. The discharge from chiller water pump to heat exchanger being cooled.

  • Page 6: Installation Instructions

    INSTALLATION 1. Place chiller on level ground. 2. Allow 3 of clearance in front of the air inlet and outlet. If the airflow in and out of the chiller is restricted the chiller’s cooling capacity is reduced. 3. Connect chiller to power supply. Refer to the nameplate for electrical circuit requirements.

  • Page 7: Inside Your Chiller

    Set point adjustment Set point view button INSIDE YOUR CHILLER Electrical System: • This chiller runs off of 220/1 Volt, single-phase power. It can run at both 60Hz and 50Hz, however, there is a 12% reduction if cooling capacity, and a 17% reduction in flow capacity at 50 Hz •...

  • Page 8: Refrigeration System

    • The chilled water reservoir is not pressurized. Do not plumb two chillers in series. • The 30AC has a 5-micron filter with 3/8” FIPT connections. An extra filter cartridge is supplied with the chiller. Contact the factory to reorder.

  • Page 9: Special Features

    SPECIAL FEATURES FOR MODEL 30AC Chilled Water Filter This unit has a 3/8" clear filter housing with a 3/8" - (5M) cartridge. There is an extra cartridge shipped with this unit. Water Pump Water pump is rated at 2.5 G.P.M. @ 60 P.S.I. 230/1.

  • Page 10: Service Bulletin

    SERVICE BULLETIN HERMETIC COMPRESSOR ELECTRICAL TERMINAL VENTING CAN BE DANGEROUS ****** When the insulating material, which supports a hermetic compressor electrical terminal, suddenly disintegrates due to physical abuse or as a result of an electrical short between the terminal and the compressor housing, the terminal may be expelled, venting the vaporous and liquid contents of the compressor housing and system.
  • Page 11 on Tecumseh Products Company drawings and diagrams using the parts as shown on Tecumseh Products Company bills of material. Hermetic compressors can be properly serviced without unnecessarily removing the terminal PROTECTIVE COVER by adhering to the following service procedures: If the branch circuit, short circuit, and ground fault protective device, i.e., fuse or circuit breaker, is open, this is a strong indication that an electrical problem exists and must be found and corrected.
  • Page 12 point if the leads are not properly removed, which can result in the terminal venting and hot oil discharging. No ignition, however, can occur if all power is disconnected and no external ignition source is present. Repeat #5 testing, carefully checking for ground, directly between each compressor terminal (C, S, &...

  • Page 13: Maintenance Information

    protective device until you have located and corrected the problem. Refer to the Unit Wiring Diagram and Service Manual for the proper procedure and wiring checkout. The text of step-by-step procedures uses language and symbols, which refer to the electrical supply as single phase. Three-phase equipment should be given equally cautious consideration when service is necessary.

  • Page 14: Trouble Shooting - Part I

    TROUBLE SHOOTING - PART I SYMPTOM DIAGNOSIS REMEDY Check Power supply Correct circuit breaker Electrical circuit Repair or replace bad circuit Check Compressor won't run Line load voltage Correct voltage condition Temperature control Repair or replace Compressor overload Replace Low pressure switch Repair or replace High pressure switch Repair or replace...

  • Page 15: Trouble Shooting - Part Ii

    TROUBLE SHOOTING - PART II REFRIGERATION SYSTEM INTERNAL PRESSURE USING REFRIGERANT R-134A * High Pressure Switch : Manual Reset - Cut out at 425 P.S.I. * Low Pressure Switch : Automatic Reset - Cut out at 15 P.S.I. WORKING REFRIGERANT PRESSURES R-134A * High Pressure : 185 to 325 P.S.I.

  • Page 16: Parts List

    30AC – 230/1 If this unit has special feature(s) installed, see appendix for part number(s). Part Number Description 115/1 230/1 Qty. Refrigeration R101 Compressor – 120/1 ½ hp R100 Compressor – 220/1 ½ hp R100-R Relay for Compressor R100-SC Start Capacitor for Compressor...

  • Page 18: Limited Warranty

    Schreiber Lim ited Warranty Schreiber warrants the product described herein against defective m aterial or workm anship for one year from the date of purchase. If any part is found to be defective within the war- ranty period, Schreiber, or its authorized service agent, will replace, or at Schreiber's options, re- pair the part free of charge for m aterials and labor.

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