Schreiber-chillers 750ACsf User Manual

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Model:
750AC
Serial No.:
Voltage:
230/3 – 460/3
Ref. Charge:
13 lbs R22
SCHREIBER ENGINEERING
a Division of DovaTech
12111 E. Park Street, Cerritos, CA 90703
Tel: (562) 926-3855 Fax:(562) 926-0969
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Summary of Contents

Page 1 - SCHREIBER ENGINEERING

IINNSSTTAALLLLAATTIIOONN,, OOPPEERRAATTIIOONN && MMAAIINNTTEENNAANNCCEE OOWWNNEERRSS MMAANNUUAALL Model: 750AC Serial No.: Volta

Page 2 - TABLE OF CONTENTS

CHILLED WATER DISTRIBUTION PIPING The chilled water distribution piping is an important factor in the performance of the water chiller. Proper pipin

Page 3

INSTALLATION INSTRUCTION Air or Water Cooled Chillers 1. When the chiller is received, check for any shipping damage. If any is found, a freight cl

Page 4

7. Fan motors - Air-cooled only, both fan motors run when either refrigeration system is calling for cooling. You can lower the sound level of the

Page 5

SPECIAL INSTRUCTIONS WATER PUMP The water pump is controlled by the manual switch for off and on operations. The motor on this pump has a built-in

Page 6

CHILLED WATER CIRCUIT The chilled water is pumped from the chiller's water tank to the discharge outlet of the chiller. Then from the discharge

Page 7 - ++ -- ++

REFRIGERATION SYSTEM The refrigeration system is a medium temperature system with a range from 350 F to 700 F. This is the most efficient range. If

Page 8

FAN MOTORS SPECIFICATIONS: 1/2 HP VOLTAGE - 460/200/230 Phase 3 HZ-50-60 RPM 1140 OVERLOAD - Automatic, Internal FRAME - LA56 MTG - Rigid,

Page 9

2.1. General 2.1.1. Locate pump as near liquid source aspossible (below level of liquid for automatico

Page 10

2.3.2. Place unit in position on wedges located atfour points (two below approximate center of driverand two below approximate center of pump). Adju

Page 11 - Air or Water Cooled Chillers

6.1.1. Single-phase motor: Non-reversible. 6.1.2. Three-phase motor: Interchange any tw

Page 12

TABLE OF CONTENTS Model ……………………………………………………………………………………………... 1 Caution ………………………………………………………………………………………….… 2 Starting Check List ………………

Page 14

WARNING Overcharging a refrigeration or air conditioning system can be dangerous. **** If a system refrigerant overcharge is sufficient to immerse

Page 15

SERVICE BULLETIN HERMETIC COMPRESSOR ELECTRICAL TERMINAL VENTING CAN BE DANGEROUS ****** When the insulating material, which supports a hermetic com

Page 16

Hermetic compressors can be properly serviced without unnecessarily removing the terminal PROTECTIVE COVER by adhering to the following service proce

Page 17 - Model NPE/NPE-F

8. Repeat #5 testing, carefully checking for ground, directly between each compressor terminal (C, S, & R) and ground. 9. If once again a gro

Page 18

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

Page 19

MAINTENANCE INFORMATION 1. There are no lubrication points on the chiller. All motors have permanent lubrication in the bearings. 2. The water t

Page 20

TROUBLE SHOOTING - PART I SYMPTOM DIAGNOSIS REMEDY Compressor won't run Check Power supply Electrical circuit Check Line load

Page 21 - WARNING

TROUBLE SHOOTING - PART II REFRIGERATION SYSTEM INTERNAL PRESSURE USING REFRIGERANT R-22 * High Pressure Switch : Manual Reset - Cut out at 425 P

Page 22

CHILLER PARTS IDENTIFICATION

Page 24

PARTS LIST 750AC/WC - 460/3 or 230/3 If this unit has special feature(s) installed, see appendix for part number(s). Part Number Description 460/

Page 25 - CRANK CASE HEATERS

Schreiber Limited Warranty Schreiber warrants the product described herein against defective material or workmanship for one year from the date

Page 27 - TROUBLE SHOOTING - PART I

WATER CHILLER STARTING CHECKLIST PROPER VOLTAGE Check the voltage on the chiller to see that it matches your power supply. CRANK CAS

Page 28 - TROUBLE SHOOTING - PART II

CONT. WATER CHILLER STARTING CHECKLIST ELECTRIC – POWER A good test to make sure power is off to the unit is to turn on the water pump swi

Page 29 - CHILLER PARTS IDENTIFICATION

Models:Voltage:Options:230-460750A/WCSchreiber Engineering Corp.12111 Park St. Cerritos, CA 90701(562)-926-3855(562)-926-0969 FaxPhase: 3Type: Air/Wa

Page 30 - PARTS LIST

SETTING SOLID STATE CONTROL This unit has solid state controls that regulates the temperature of the refrigeration system. After the unit is wired

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