Industrial Shell Ice Maker Manual
Contents
1. Set unit in permanent location in level position with bottom channel of unit frame as reference Anchoring of this unit to concrete or wooden floor is not necessary However rubber isolations are recommended if the unit is mounted directly on steel structure Set remote air cooled condenser in permanent location at an elevated position at least five feet 1 52 meters over and above the height of the refrigerant return line See attached diagram at end of manual for visual reference For preventing any possible damage to evaporator tubes during shipment precut polyethylene cushions are inserted between tubes and spaces between end tubes and ice making section end walls Site Connections Required Water drains necessary are One 1 25mm drain from sump Suggested drain routing is shown on enclosed drawing for site connection Pipe water supply for ice making to the 12 13mm line On models producing 7 tons of ice and above per day a low water pressure control is incorporated to prevent the compressor from operating when the water pressure is inadequate 12 psig 85 KPa min On small models a float switch is incorporated with the circulating pump to prevent the system from operating with critically low water level inside the water tank For Remote Cooled Models Make refrigerant line connections between main unit and the remote condenser see enclosed drawing on remote air cooled units Electrical Connections Requi2. b OFS Oil failure control factory set DO NOT CHANGE c Thermostatic expansion valves set for 8 F 14 4 C degree superheat c Water pressure control set for 12 psig 85 KPa Always consult manufacturers manual of compressor package on safety control settings Normal Operating Pressures During the operation of the ice machine the compressor is set to operate at approximately 260 psig 1790 Kpa head pressure during the freeze cycle At start of harvest the head pressure will drop to approximately 175 psig 1210 KPa and will rise to approximately 205 psig 1410 KPa Suction pressure during freeze cycle should be approximately 50 psig 345 Kpa and at the time the ice drops rises to 70 to 80 psig 480 to 550 KPa Immediately after harvest it will drop gradually to approximately 50 psig 360 KPa and will then level out at approximately 40 psig 330 KPa Bin Limit Control Operation If system is fitted with one As ice is discharged to the ice bin ice will start to pile up inside the bin A bin limit control is installed to stop the ice machine when the ice pile reaches the desired maximum level A lighted red indicating light ice limit control on the electrical panel box will indicate that the bin is full BERG B AR B W SERIES SHELL ICE MAKER Page 8 BERG CHILLING SYSTEMS ING Operation amp Maintenance Manual Make sure that the ice limit control light is off when restarting the ice machine F
3. man hours which will be reimbursed at the normal hourly rate of 54 00 Hr Labour warranty will only be allowed in those situations where defects have occurred as a direct result of factory workmanship or materials Claim Procedures All claims must be submitted on Berg s Warranty Claim Form Claim forms are found in the equipment owner s manual or can be supplied upon request If a contractor is used to make the repairs a signed service report and a company invoice must accompany the Warranty Claim Form Claims must be faxed to Berg Service Department 416 755 6022 no later than 15 days after the failure has occurred Claims in excess of the Limited Labour Allowance Schedule will not be processed BERG B AR B W SERIES SHELL ICE MAKER Page 20 BERG CHILLING SYSTEMS INC Operation amp Maintenance Manual Warranty Claim Form Fax to Berg Service Dept 416 755 6022 Claim ft Date Claim Submitted By Job Name Company Address Address Phone Phone Fax Fax Berg Model Voltage Serial Date of Failure Date of Original Start Up Details of Failure Describe the nature of the failure Part NUMDG E Quantitv Cost for Repairs if applicable Requesting Repair Total Replace Reimbursement To qualify for Limited Labour Warranty you Other must include a signed serv
4. to maintain 5 125mm water level in the tank Turning the knob clockwise or counter clockwise raises or lowers the level minimum water level is 4 102mm above the fill valve centerline The water level in the tank should be maintained at approximately 1 25mm below overflow stand pipe for normal water conditions during freeze cycle Re check oil level and check oil pressure which should be 12 to 18psi 85 to 130 KPa above suction pressure Always confirm oil pressure and oil level on manufacturer s manual of compressor package Check the voltage and current being drawn by the machine at electrical supply Compare it with the total running amps indicated on the panel nameplate Also check running amps of various components on the machine and compare with those mentioned on the shop test sheet A considerable difference may suggest a problem and should be corrected before proceeding further On normal operation if desired that the compressor and the system will be stopped turn selector switch to OFF position To stop the machine anywhere in the cycle because of a problem an emergency stop push button is provided After the E Stop push button is pressed for additional safety turn to OFF selector switch If compressor is shut off by lube oil safety switch or if control circuit breaker is opened reset button s must be pushed before compressor can be restarted Do not reset safety controls more than once bef
5. Chilling Systems Inc INSTALLATION OPERATION amp MAINTENANCE MANUAL BERG B AR B W SERIES SHELL ICE MAKER BERG CHILLING SYSTEMS ING Operation amp Maintenance Manual For 24 hour service inquiries Please call 416 755 2226 BERG B AR B W SERIES SHELL ICE MAKER Page 2 BERG CHILLING SYSTEMS ING Operation amp Maintenance Manual BERG SERIES SHELL ICE MAKER OPERATION amp MAINTENANCE MANUAL CONTENTS Section Description 1 0 0 Introduction 2 0 0 Installation and Start Up Instructions 3 0 0 Various Positions and Settings 4 0 0 Schneider Controller 5 0 0 Enclosed Information 6 0 0 Ice Machine Field Start Up Report 7 0 0 Limited Warranty 8 0 0 Suggested Spare Parts List Parts 9 0 0 Component Specifications BERG B AR B W SERIES SHELL ICE MAKER Page 3 BERG CHILLING SYSTEMS ING Operation amp Maintenance Manual 1 0 0 INTRODUCTION Your BERG chilling system has been carefully assembled and engineered to give trouble free service with a minimum of maintenance 1 1 0 1 2 0 1 3 0 1 4 0 1 5 0 1 6 0 1 7 0 The simplicity of operation and maintenance of the SHELL ICE MAKER ICE MACHINE is its unique feature Any mechanic with the basic knowledge of refrigeration cycles will be able to keep it operating at peak efficiency Before leaving our plant each machine is tested operated and capacity checked For air cooled models refrigerant is pumped down into receiv
6. E DURING FREEZE CYCLE PSI KPa OUTSIDE AMBIENT TEMPERATURE deg F deg C WATER SUPPLY TEMPERATURE deg F deg C 6 WATER TANK TEMPERATURE deg F deg C 7 MIN SEC 8 ICE HARVEST CYCLE MIN SEC 9 ADJUSTMENTS MADE INCLUDE ONLY IF ORIGINAL SETTINGS WERE CHANGED HIGH PRESSURE SWITCH SETTING PSI KPa LOW PRESSURE SWITCH SETTING PSI KPa WATER LEVEL AT WATER TANK DURING FREEZE CYCLE FROM END OF OVERFLOW STANDPIPE INCH MM BERG B AR B W SERIES SHELL ICE MAKER Page 13 BERG CHILLING SYSTEMS ING Operation amp Maintenance Manual Caution For Ice Machines Damage Failures or poor performance associated with the following conditions are not covered by warranty Freight Damage Lack of proper maintenance Misapplied unstable or imbalanced power supply Incorrect or loose electrical connections Blown fuses Incorrect phasing or rotation of fans pumps motors or compressors Unauthorized adjustments Tampering with valves or control settings Leaks Failure of components due to over pressurization Improper refrigerant charge Failure to initiate power 12 hours prior to start up of the ice machine By passing of any safety devices or pressure controls Dirty supply water Failure to provide adequate bleed off Fouling or plugging of components Operating the system with dirty evaporator tubes Operating the system with dirty condenser Operating the equipment outside of the original design specifications Poor refr
7. der and dryer Delays start of compressor until water flows through the condenser Ice Thickness 3 30 minutes Sub cool 0 30 seconds Condenser BERG B AR B W SERIES SHELL ICE MAKER Page 10 BERG CHILLING SYSTEMS INC Operation amp Maintenance Manual 5 0 0 ENCLOSED INFORMATION Water pump Low water pressure control Lube oil Protection control Refrigeration HLP control Thermostatic expansion valve Liquid solenoid valve Hot gas solenoid valve Filter drier Water fill valve Programmable logic controller Pressure regulators Compressor manual and parts list BERG B AR B W SERIES SHELL ICE MAKER Page 11 BERG CHILLING SYSTEMS ING Operation amp Maintenance Manual 6 0 0 ICE MACHINE FIELD START UP REPORT MODEL NO DATE UNIT SERIAL NO CUSTOMER SITE ADDRESS POWER SOURCE VOLTS PHASE CYCLE START UP MADE BY COMPANY MECHANIC SIGNATURE BERG B AR B W SERIES SHELL ICE MAKER Page 12 BERG CHILLING SYSTEMS ING Operation amp Maintenance Manual START UP AND FINAL ADJUSTMENTS ITEM READINGS TAKEN AFTER FINAL ADJUSTMENTS AND AFTER THREE COMPLETE NO CYCLES FREEZING amp HARVEST 1 AMPS DURING FREEZE CYCLE AT MAIN DISCONNECT L1 L2 L3 2 SUCTION PRESSURE AT END OF FREEZE CYCLE PSI KPa SUCTION 3 PRESSURE AT END OF HARVEST CYCLE PSI KPa DISCHARGE PRESSURE DURING FREEZE CYCLE PSI KPa AT RECEIVER PRESSURE TAKEN AT OUTLET VALV
8. e Territory and upon our examination shall disclose to our satisfaction to have been defective If the Product or equipment is located outside the Territory our limited warranty only ex works our factory shall apply for one year from the date of shipping see Standard Terms and Conditions of Sale Berg neither assures nor authorizes any other persons to assume for us any liability in connection with the sale of our equipment except under the conditions of this Policy This Service Labour Policy does not apply to Temperature Control Units TCU s The Service Labour Policy does not cover any field on site labour charges during overtime hours 5 00pm to 8 00am or during weekends and holidays nor does it cover charges labour or otherwise associated with travel and accommodation adjustments and maintenance or work done outside of Canada and continental USA Any cost differential for overtime labour charges will be the responsibility of the Buyer Service Labour rates applied to the Limited Labour Allowance Schedule will be the mean rate as determined by Berg of the equipment destination service area This Policy is voided and shall not apply if in our opinion the Product has been subject to misuse negligence or pressures in excess of limits recommended by Berg or which have been repaired or altered outside Berg s factory or authorization or which have had the serial number s removed or defaced This Policy does not cover r
9. efrigerant gas or any labour associated with its evacuation or replacement nor does it cover any Product or apparatus maintenance or any apparatus damaged from freezing of water or heat transfer fluid Any work determined to be associated with the above will be the responsibility of the Buyer Berg is not responsible for any sales use excise duty or any other applicable taxes associated with the replacement of parts or labour under this Policy This Policy is only effective with all the terms and conditions of our quote being met and it is understood that time is of the essence in this agreement This Policy is not transferable All Service Policy Labour must be authorized by Berg prior to any work being performed and must have a Berg Purchase Order issued specifically for the work Warranty and Service Labour Claim Forms found in the Product Owner s Manual must accompany all Service and Warranty claims and parts returns or this Policy shall not apply All defective parts become the property of Berg and must be returned within fifteen 15 days of the failure transportation prepaid as advised by Berg to become eligible for replacement under this policy Products not of our manufacture do not qualify for this Service Labour Policy and will be limited to the warranty of the manufacturers of such Products BERG B AR B W SERIES SHELL ICE MAKER Page 17 BERG CHILLING SYSTEMS ING Operation amp Maintenance Manual This Policy i
10. er and valves are closed before shipment Occasionally minor adjustments during start up and operation are necessary to compensate for such differences as water pressure water temperatures or ambient temperatures Shipped inside the electrical panel door you will find e Our service manual e Electrical diagram e Piping and Instrumentation Diagram Before you begin to install and start your unit we urge you to carefully read through and digest this literature to familiarize yourself with its contents This service manual describes the following type of ice machine a Shell Ice Maker with a water cooled condenser b Shell Ice Maker with an air cooled condenser On the next few pages you will see sketches and drawings showing major components details of site connections water piping and refrigeration piping The main frame size number of evaporator tubes and condenser fans may however vary with models In line with our CONTINUOUS IMPROVEMENT policy other models are added to the existing standard models and regularly updated product catalogues are available Inquiries can be made on special requirements to come up with custom made products BERG B AR B W SERIES SHELL ICE MAKER Page 4 BERG CHILLING SYSTEMS ING Operation amp Maintenance Manual 2 0 0 2 1 0 2 2 0 2 3 0 2 4 0 NOTE 2 5 0 INSTALLATION AND START UP INSTRUCTIONS Un crate the unit being careful not to damage external panels
11. ice report and a copy of the contractor s invoice Attached Yes No Do not write below this line Date Form Received Warranty Claim Form Being Handled By Note All defective parts must be returned prepaid and within 15 days of the failure date No credit will be issued if the defective parts are not returned prepaid and within the specified time allowed BERG B AR B W SERIES SHELL ICE MAKER Page 21 BERG CHILLING SYSTEMS ING Operation amp Maintenance Manual 8 0 0 Spare Parts List BERG B AR B W SERIES SHELL ICE MAKER Page 22 BERG CHILLING SYSTEMS ING Operation amp Maintenance Manual 9 0 0 COMPONENT SPECIFICATIONS Please see the following pages for major equipment specifications BERG B AR B W SERIES SHELL ICE MAKER Page 23
12. ich in our opinion has been subject to misuse negligence or pressures in excess of limits recommended by us or which have been repaired or altered outside Berg s factory or which have had the serial number s removed or defaced This warranty does not cover refrigerant gas nor does it cover any apparatus damaged from freezing of water or heat transfer fluid Replacement or repair of defective material will be EX WORKS our factory and will assume any used portion of this warranty All defective parts become the property of Berg and must be returned within fifteen 15 days of the replacement date transportation prepaid as advised by Berg to become eligible for replacement under this warranty Warranty Claim Forms found in the Product Owner s Manual must accompany all warranty claims and parts returns or this warranty shall not apply Berg is not responsible for any sales use excise duty or any other applicable taxes associated with the replacement of parts under this warranty This warranty is only effective with all the terms and conditions of the Product quote being met and it is understood that time is of the essence in this agreement Repair or replacement of products not of our manufacture will be limited to the warranty of the manufacturers of such products Seller shall transfer to Buyer whatever transferable warranties and indemnities Seller receives from the manufacturers of any subcomponents of the Products if any including any tra
13. igerant piping practices Locating the condenser below the elevation of the ice machine return connection Locating a remote condenser in excess of 40 linear feet from the ice machine without consulting with the factory Improper refrigerant line size s to or from rooftop condensers Improper or poor rooftop condenser location Improper evacuation of refrigerant lines prior to installation of refrigerant and start up Note All consumable items are not covered by warranty Example Oil filters fuses fan belts refrigerant BERG B AR B W SERIES SHELL ICE MAKER Page 14 BERG CHILLING SYSTEMS ING Operation amp Maintenance Manual SERIAL PLATE amp EQUIPMENT IDENTIFICATION A serial plate like the SAMPLE shown below has been affixed to the apparatus and it gives the following information SERVICE amp PARTS 416 755 2221 Business hours 416 755 2226 After hours 416 755 6022 FAX service email service berg group com 24 HOURS 7 DAYS ARE W01033A AH1 1002 CENTRAL CHILLER BERG CHILLING SYSTEMS INC 51 NANTUCKET BLVD SCARBOROUGH ONTARIO CANADA M1P 2N5 G NRTL C kI example of Serial Plate e Whenever using this manual check first that the serial number on the inside cover is identical to that on the serial plate of the equipment e In all correspondence with BERG please refer to the manufacturing serial number for true identification of the equipment e Whenever contacting BERG be sure t
14. ils to meet the Claims Procedure e Noclaims will be processed if defective parts are not returned to Berg prepaid Use the Limited Labour Allowance Schedule found in the owner s manual as a guide to calculate the amount Berg will reimburse for required repairs on equipment found to be defective The schedule shows the maximum man hours which will be reimbursed at the normal hourly rate of 54 00 Hr Berg will not pay for Labour at overtime or premium rates Labour in excess of the Limited Labour Schedule Service charges mileage travel expenses of any kind Miscellaneous materials Freight Taxes or any special fees BERG B AR B W SERIES SHELL ICE MAKER Page 18 BERG CHILLING SYSTEMS ING Operation amp Maintenance Manual LIMITED LABOUR ALLOWANCE SCHEDULE MAX ALLOWANCE MAN HOURS DESCRIPTION OF SIZE IN HP FAILED COMPONENT REPAIR REPLACE Compressor 3 10 HP 15 25 HP 30 40 HP Over 40 HP Electrical Wiring Controls Microprocessors Refrigerant Valves or Components Motors 1 10 10 and MAX ALLOWABLE MAN HOURS Diagnostic BERG B AR B W SERIES SHELL ICE MAKER Page 19 BERG CHILLING SYSTEMS ING Operation amp Maintenance Manual Service Labour Claim Procedures Using the Limited Labour Allowance Schedule above as a guide to calculate the amount Berg will reimburse for required repairs to equipment found to be defective This schedule shows the maximum
15. nsferable warranties and indemnities in respect of patent infringement See the Product Service Labour Policies in your Product Owner s Manual for possible extensions to this Warranty This is an expressed warranty of merchantability and or fitness for a particular purpose all other implied warranties and any liabilities not based upon contract are hereby disclaimed and excluded by this warranty In accordance with Section 7 of our Standard Terms and Conditions of Sale under no circumstances shall Berg Chilling Systems Inc be liable for loss of prospective or speculative profits or special indirect incidental or consequential damages This warranty is a part of the Standard Terms and Conditions of Sale of Berg Chilling Systems Inc BERG B AR B W SERIES SHELL ICE MAKER Page 16 BERG CHILLING SYSTEMS ING Operation amp Maintenance Manual Service Labour Policy Berg s Service Labour Policy extends the One 1 Year Limited Warranty to include labour on a limited basis to the original purchaser only see the Limited Labour Allowance Schedule in your Product Owner s Manual for allowable service hours Berg will provide a Service Technician or reimburse the Buyer in accordance with this Policy to diagnose the problem repair or replace or otherwise make good any part of equipment of our manufacture which within one year after the date of shipment to a destination within Canada or continental United States of America th
16. o state the manufacturing serial no s and model no s BERG B AR B W SERIES SHELL ICE MAKER Page 15 BERG CHILLING SYSTEMS ING Operation amp Maintenance Manual 7 0 0 Limited Warranty Berg Chilling Systems Inc Berg warrants to Buyer that upon delivery to Buyer the Products purchased hereunder shall conform to the applicable Seller s specifications as provided in the quotation Except as are contained herein Berg makes no warranties conditions guarantees or representations relating to the Products express or implied statutory or otherwise The Seller warrants all Products it manufactures to be free from defects in workmanship and material when used under conditions recommended by us The Seller s obligation under the warranty is limited to repair or replace or otherwise make good at our factory any parts which within one year after date of shipment of equipment of our manufacture to the original purchaser after being returned to us with transportation prepaid and upon our examination shall disclose to our satisfaction to have been defective The Seller neither assures nor authorizes any other persons to assume for us any liability in connection with the sales of our equipment except under the conditions of this warranty The warranty does not cover any field on site labour charges for replacement of parts adjustment repairs or any other work done This warranty shall not apply to any Product or apparatus wh
17. ollow procedure 2 11 0 on start up of the machine NOTE When Ice limit control light stays on despite that the bin ice level had already lowered check the proximity probe and make sure that there are no solids within ten inches 250mm in front of it When Ice bin is with a RAKE ASSEMBLY SYSTEM when full bin limit is reached an input signal to the controller will initiate an output relay to cut off the ice machine main control circuit and stops the ice machine BERG B AR B W SERIES SHELL ICE MAKER Page 9 BERG CHILLING SYSTEMS ING Operation amp Maintenance Manual 4 0 0 SCHNEIDER CONTROLLER This model Ice Machine uses adjustable timers to control the ice making harvest and ice sub cooling time 4 1 0 FEATURES The Schneider Controller provides comprehensive monitoring and alarm features covering compressor operation freeze cycle harvest cycle water tank level auger drive operation and ice bin level optional It features four timers all with adjustable pre sets within set limits to customize the operation of the ice machine TIMER NAME TIMER RANGE FUNCTION Controls the thickness of the ice 6 min corresponds to 14 thickness Harvest 0 10 minutes Trips an alarm if the harvest cycle fails to terminate Termination before the set time Used to produce colder dryer ice Shuts off the water pump but remains in freezing mode for the set time This reduces the temperature of the ice making it col
18. ore determining cause of shut down If compressor package shuts down due to low oil use a REFRIGERANT RECOVERY UNIT to withdraw refrigerant inside the package and transfer it back to the liquid receiver before adding oil The procedure will facilitate easy start up after sufficient amount of oil has been added For where to add oil please consult manufacturers manual of the compressor If ice machine is one of the many related machines in the ice plant system carefully read instructions how it coordinates with the whole system instruction on electrical coordinates are usually found stated under NOTES of electrical schematic Usually an ICE PLANT SYSTEM manual is provided explaining the coordinated operation of the ice machine with the other related machineries BERG B AR B W SERIES SHELL ICE MAKER Page 7 BERG CHILLING SYSTEMS ING Operation amp Maintenance Manual 3 0 0 3 2 0 NOTE 3 3 0 3 4 0 VARIOUS POSITIONS AND SETTINGS Normal Valve Positions Open e Compressor suction and discharge service shut off valves e Receiver or condenser inlet and outlet valves for refrigerant e Make up water supply valve e Cooling water inlet and outlet valves on condenser water cooled models only Closed e Compressor oil drain valve closed and capped e Accumulator oil drain valve closed and capped e Refrigerant charge valve closed and capped Normal Control Settings a LP switch factory set DO NOT CHANGE
19. red Open electrical panel door by releasing the door latches for lock screws Make electrical connections through conduit where shown Feed wire size required for the machine should be suitable for K V A connected load rating indicated on nameplate BERG B AR B W SERIES SHELL ICE MAKER Page 5 BERG CHILLING SYSTEMS ING Operation amp Maintenance Manual 2 6 0 2 7 0 2 8 0 2 9 0 2 10 0 2 11 0 NOTE 2 12 0 2 13 0 For Remote Air Cooled Models Make electrical connections between the electrical panel on main unit and the remote condenser fan or condensing unit Make electrical connection for power supply to the remote condenser fan or condensing unit Voltage required and furnished should be checked at this time Follow recommendations as per wiring diagram and local electrical code applicable in your area Open suction and discharge valves on compressor and also open inlet and outlet valves on receiver air cooled models or condenser water cooled models Check system for refrigeration leaks Turn main circuit breaker to ON position to energize crankcase heater on the compressor This heater should be left on for at least 24 hours before starting up the compressor Inside electrical panel turn screw drive switch and water pump switch to manual position Check water flowing down on inside and outside surfaces of evaporator tubes A ball valve is provided on the pump discharge so tha
20. s a part of the Standard Terms and Conditions of Sale of Berg Chilling Systems Inc Warranty Claim Procedure Labour warranty will only be allowed in those situations where defects have occurred as a direct result of factory workmanship or defects in materials Claim Procedures e Consult the Factory immediately of any problems you are having with your equipment Phone 416 755 2221 or fax 416 755 6022 e f required Berg will supply contact information for the local authorized Berg Service Contractor in your area or if you wish you can use your own contractor provided he is licensed and qualified as required by local governing authorities and it is agreed upon by Berg e After the contractor has arrived on site and determined the cause of the problem the contractor must consult with the factory before proceeding with any repairs e Once you have had your equipment repaired complete the Warranty Claim Form All claims must be submitted on the Warranty Claim Form found in the owners manual e A signed service report from the Contractor detailing all work performed and an invoice copy must accompany the Warranty Claim Form e Claims must be faxed to Berg Service Department 416 755 6022 no later than 15 days after the failure has occurred e Claims in excess of the Limited Labour Allowance Schedule may not be processed e Berg reserves the right to adjust and or refuse any claims that appear excessive or fa
21. t water spray from outer ring and inside nozzle can be adjusted and over spray higher than the outer ring and nozzle horizontal levels can be avoided water should be streaming evenly down the tube and covering all tube surfaces Check the rotation of the auger auger should turn clockwise Turn screw drive switch and water pump switch to automatic position Make sure that water supply valve is fully open Make sure that water tank fills and water fill valve shuts off automatically Check to see that oil level is 1 3 to 2 up on compressor sight glass To operate machine please see Schneider Controller Final thickness adjustments are done at the site During freeze cycle the liquid solenoid valve will open and during harvest cycle the hot gas solenoid valve will open thereby energizing one of the two indicating lights located on the electrical panel door The ice machine is fitted with a water tank water level control adjust water level with respect to the type of control it is fitted with as follows BERG B AR B W SERIES SHELL ICE MAKER Page 6 BERG CHILLING SYSTEMS ING Operation amp Maintenance Manual 2 14 0 2 15 0 2 16 0 NOTE 2 17 0 NOTE 2 19 0 The water fill valve see enclosures measures water level by means of a diaphragm that responds to water head Diaphragm movement drives a servo type main valve which controls the flow of water into the tank The adjusting knob is factory set
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