AC International 8200 Series user manual

User manual for the device AC International 8200 Series

Device: AC International 8200 Series
Size: 1,18 MB
Date of adding : 2013-05-23 19:22:24
Number of pages: 36
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AC International 8200 Series user manual
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Summary of the content on the page No. 1


Instruction Manual
AC2675
REVISION A



8200 Series Base Mounted
Centrifugal Fire Pumps
Installation, Operation and Service Instructions
INSTALLER: PLEASE LEAVE THIS MANUAL FOR THE OWNER’S USE.

1

Summary of the content on the page No. 2

TABLE OF CONTENTS DESCRIPTION......................................................3 MAINTENANCE TIME TABLE........................... 19 OPERATIONAL LIMITS .......................................3 TROUBLE SHOOTING ...................................... 20 MAXIMUM WORKING PRESSURE.....................3 CHANGING ROTATION .................................... 23 SEAL OPERATING LIMITS .................................3 SERVICE INSTRUCTIONS ................................ 24 PACKING ............

Summary of the content on the page No. 3

DESCRIPTION PUMP IDENTIFICATION The 8200 Series Centrifugal Fire Pumps are There are two identification plates on each framed mounted pumps which feature – high pump. The pump rating plate gives efficiency, rugged construction, compact identification and rating information. Figure 1 design, foot mounted volute and regreasable shows an example of a typical Rating Plate. bearings. These features, along with the Permanent records for this pump are horizontal split case, make installation,

Summary of the content on the page No. 4

ADDITIONAL SAFETY REQUIREMENTS: SAFETY INSTRUCTIONS 1. Electrical connections to be made by qualified Electrician in accordance with all SAFETY INSTRUCTIONS national, state and local codes. This safety alert symbol will be used in this 2. Motor must have properly sized starter manual and on the pump safety instruction decals with properly sized heaters to provide to draw attention to safety related instructions. overload and undervoltage protection. When used the safety alert symbol

Summary of the content on the page No. 5

ADDITIONAL SAFETY REQUIREMENTS: MECHANICAL SAFETY: ELECTRICAL SAFETY: WARNING: Unexpected Startup Hazard WARNING: Electrical Shock Hazard Disconnect and lockout power before Electrical connections to be made by a servicing. Failure to follow these instructions could qualified electrician in accordance with all result in serious personal injury or death, and applicable codes, ordinances, and good practices. property damage. Failure to follow these instructions could result in ser

Summary of the content on the page No. 6

INSTALLATION PUMP LOCATION NYLON SLING, CHAIN OR WIRE Locate the pump so there is sufficient room ROPE for inspection, maintenance and service. If the use of a hoist or tackle is needed, allow ample head room. WARNING: Falling Objects Hazard Eyebolts or lifting lugs, if provided, are for lifting only the components to which they are CHOKER HITCH attached. Failure to follow these instructions could AROUND BEARING result in serious personal injury or death, or FRAME property dam

Summary of the content on the page No. 7

installation. ITT AC Fire Pump Systems has collect should be blown out with compressed determined that proper and correct alignment air. can only be made by accepted erection Make sure there is a suitable power source practices. Refer to the following paragraphs available for the pump driver. If motor driven, on “Foundation,” “Base Plate Setting,” electrical characteristics should be identical to “Grouting Procedure,” “Alignment Procedure” those shown on motor data plate. and “Doweling

Summary of the content on the page No. 8

operator). Final alignment procedures are BASE PLATE SETTING (BEFORE PIPING) covered under “Alignment Procedures.” NOTE: This procedure assumes that a e. Check to make sure the piping can be concrete foundation has been prepared with aligned to the pump flanges without anchor or hold down bolts extending up ready placing pipe strain on either flange. to receive unit. It must be understood that pump and motor have been mounted and f. Grout in base plate completely (See rough aligned a

Summary of the content on the page No. 9

vibration, and bearing loads that result in c. Remove the capscrew that holds the inner premature bearing failure and ultimate seizing guard to the support bracket. of the pump. Misalignment can be angular, d. Spread the inner guard and pull it over the parallel, or a combination of these, and in the coupler. horizontal and vertical planes. Final alignment should be made by moving and shimming the Installation motor on the base plate, until the coupling hubs are within the recommended

Summary of the content on the page No. 10

ANSI/OSHA Coupling Guard Exploded View For Typical 8200 Series Fire Pump Installation INNER GUARD OUTER GUARD ATTACH SUPPORT BRACKET TO BEARING HOUSING SUPPORT BRACKET LOCATE SUPPORT ARM BETWEEN OUTER GUARD ENDS. ALIGN THE ARM WITH HOLES IN THE OUTER GUARD AND HOLES IN THE SADDLE BRACKET. NUT BRACKET SUPPORT BRACKET LOCKWASHER ATTACHED INSIDE HERE SUPPORT CAPSCREW IN LINE WITH BOLT FLAT WASHER SPACER WASHER MOTOR SADDLE THIS OPTION USED IN PLACE OF SPACER WHERE BRACKET A

Summary of the content on the page No. 11

Final Alignment Method 2 – For Orange Hytrel Insert, 3500 Final alignment cannot be accomplished until RPM Operation, or All Other Coupler the pump has been operated initially for a Types sufficient length of time to attain operating (See Figure 7B) temperature. When normal operating a. Make sure each hub is secured to its temperature has been attained, secure the respective shaft and that all connecting pump to re-check alignment and compensate and/or spacing elements are removed a

Summary of the content on the page No. 12

and properly aligned, so that no strain is SUCTION PIPE INSTALLED WITH A CHECK VALVE transmitted to the pump when the flange bolts GRADUAL RISE TO PUMP GATE VALVE are tightened. Use pipe hangers or other INCREASER supports at necessary intervals to provide LEVEL support. When expansion joints are used in the piping system, they must be installed CORRECT CENTER LINE beyond the piping supports closest to the OF PIPE pump. Tie bolts should be used with AIR POCKET expansion joints to

Summary of the content on the page No. 13

Suction piping should be short in length, as spring type, sized to avoid excessive direct as possible, and never smaller in friction in the suction line. (Under all other diameter than the pump suction opening. A conditions, a check valve, if used, should minimum of ten (10) pipe diameters between be installed in the discharge line.) (See any elbow or tee and the pump should be “Valves in Discharge Piping”) allowed. If a long suction pipe is required, it b. When foot valves are used, or wh

Summary of the content on the page No. 14

lubricate packing. Only when all of the Pressure Gauges following conditions prevail, can this be done: Properly sized pressure gauges should be 1. Liquid is clean, free from sediment and installed in both the suction and discharge chemical precipitation and is compatible nozzles in the gauge taps provided. The with seal materials. gauges will enable the operator to easily observe the operation of the pump, and also 2. Temperature is above 32°F and below determine if the pump is oper

Summary of the content on the page No. 15

box. Excess pressure from an external source can be very destructive to packing. More pressure is required, however, for abrasive slurries than for clear liquids. Examination of the leakage will indicate whether to increase or decrease external pressure. If slurry is present in the leakage, increase the pressure until only clear liquid drips from the box. If the drippage is corrosive or harmful to personnel, it should be collected and piped away. A common error is to open the external

Summary of the content on the page No. 16

OPERATION WARNING: Rotating Components WARNING: Unexpected Startup Hazard Hazard Disconnect and lockout power before Do not operate pump without all guards in place. servicing. Failure to follow these instructions could Failure to follow these instructions could result in result in serious personal injury or death, or serious personal injury or death and property property damage. damage. WARNING: Electrical Shock Hazard CAUTION: Seal Damage Hazard Electrical connections to be

Summary of the content on the page No. 17

b. Check and record pressure gauge CAUTION: Bearing/Seal Damage Hazard readings for future reference. Do not let heated pump temperature rise above 150°F. Failure to follow these instructions c. Check and record voltage, amperage per could result in property damage and/or moderate phase, and kw if an indicating wattmeter is personal injury. available. d. Check bearings for lubrication and FIELD TESTING temperature. Normal temperature is 180° A typical performance curve for a speci

Summary of the content on the page No. 18

Bearings are a primary concern on pumping greases are Texaco Multifak No. 2 and units. First, dismantle the bearings; clean and Mobilux No. 2 grease. inspect them for any rusted or badly worn Greases made from animal or vegetable oils surfaces. If bearings are free from rust and are not recommended due to the danger of wear, reassemble and relubricate them with deterioration and forming of acid. Do not use one of the recommended pump lubricants. graphite. Use of an ISO VG 100 mineral ba

Summary of the content on the page No. 19

MAINTENANCE TIME TABLE EVERY MONTH Check bearing temperature with a thermometer, not by hand. If bearings are running hot (over 180°F), it may be the result of too much lubricant. If changing the lubricant does not correct the condition, disassembly and inspect the bearings. Lip seals bearing on the shaft may also cause the housing to run hot. Lubricate lip seals to correct. EVERY 3 Check grease lubricated bearings for saponification. This condition is usually caused by the infiltration o

Summary of the content on the page No. 20

TROUBLE SHOOTING Between regular maintenance inspections, be alert for signs of motor or pump trouble. Common symptoms are listed below. Correct any trouble immediately and AVOID COSTLY REPAIR AND SHUTDOWN. CAUSES CURES No Liquid Delivered 1. Lack of prime. Fill pump and suction pipe completely with liquid. 2. Loss of prime. Check for leaks in suction pipe joints and fittings; vent casing to remove accumulated air. Check mechanical seal or packing. 3. Suction lift too high (a If there i


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