Vogt P18AL Service Manual

P18AL
TUBE-ICE®
MACHINE
Manual Part Number 12A4171M09
Service Manual
$5000
8/28/00
NOTICE
This manual is the property of the owner of this particular Tube-Ice® machine.
Model #____________________ Serial #____________________.
It is to be left on the premises with this machine at all times. After start­up, it should be stored in a safe place where it can be readily available when needed for future reference in maintaining troubleshooting or servicing.
Failure to comply with this notice will result in unnecessary inconvenience and possible additional expenses.
This manual is intended as an informational tool for the installation, operation, maintenance, troubleshooting, and servicing of this equipment. If an existing situation calls for additional information not found herein, we suggest that you contact your distributor first. If further assistance or information is needed, please feel free to contact the factory at 502-635-3000 or FAX at 502-635-3024.
IMPORTANT: The Warranty Registration/Start-Up Report found in the front of this manual is to be completed and returned to the factory promptly after the official start-up.
®
Please return to: TUBE ICE
, LLC 1000 W. Ormsby Ave. Louisville, KY 40210
Tube Ice L.L.C.
Vogt Order Number: ____________________
1000 W. Ormsby
Louisville, KY 40210
(502) 635-3235
FAX #502-635-3024
THIS FORM MUST BE SENT TO
VOGT TO ACTIVATE WARRANTY
Warranty Registration / Start-Up Form
(Medium & Large Machines)
Model Number: __________________________ Serial Number: __________________________
This form must be filled out completely and signed by the customer in order to assure acceptance by Vogt.
Date of Start-Up: _______________________________ Form Completed By: _____________________________________ AC Condenser Model Number: _____________________ AC Condenser Serial Number: _____________________________ Water Treatment System? Yes No Manufacturer: ____________________ Model: ________________________ Bin Manufacturer: _______________________ Model: _________________________ Bin Capacity: _______ lbs.
Distributor
Company Name: ____________________________________________ Phone: _______________________ Address: ____________________________________ City: _________________________ State: ___________ Zip: ___________
Service Company
Company Name: ____________________________________________ Phone: _______________________ Address: ____________________________________ City: _________________________ State: ___________ Zip: ___________
Customer (location of equipment)
Company Name: ____________________________________________ Phone: _______________________ Address: ____________________________________ City: _________________________ State: ___________ Zip: ___________
PRE-OPERATION CHECK
Service Manual on hand Machine room suitable 50°F minimum, 110°F maximum Power Supply ______ V _____ PH _____ Hz (machine not running) Compressor crankcase heater on 12 hour minimum All valves opened or closed as tagged Solenoid valve stems in auto position System leak checked/tight Auxiliary equipment overloads wired into control circuit Water supply and drains connected properly Sufficient make-up water supply (minimum 30 PSIG) Instruction manual and warranty certificate left on-site
Name of person left with: __________________________________
Power Supply ______ V _____ PH _____ HZ (machine running) Pump , cutter & other motor direction of rotation correct Cutter motor amps RLA__________ Actual __________ Water pump amps RLA__________ Actual __________ Condenser motor amps (if applicable) _________ Incoming potable water temperature: _____°F All water distributors in place (visually inspected) Make-up water float valve operates properly Clear ice Yes No Hour meter in control panel connected and operating Suction Pressure: End of freeze ________ End of harvest ________ Discharge Pressure: End of freeze ________ End of harvest ________
OPERATION CHECK
Test
Cycle
#1 #2 #3 #4
Note: Ice lb. per day can be found by:
Make-up Water
Temp
Freeze Time
Min/Sec
Harvest Time
Min/Sec
harvestper lb. ice
+ me)harvest ti time(freeze
First Ice Out
Min/Sec
1440×
All Ice Out
Min/Sec
Avg. Hole
Size
Ice
Lb. Per Harvest
Ice
Lb. Per Day
Remarks:
Technician Signature: ___________________________ End User Signature:_____________________________
I certify that I have performed all of the above procedures.
8/28/00
TUBE ICE®, LLC, located in
Louisville, Kentucky since 1880.
Sales - (800) 853-8648
Parts and Service - (502) 635-3000
2/2/09
Since 1880, Manufacturers of Quality
Tube-Ice
®
Machines
Vogt®
Tube-Ice
®
Machines
Installation, Service Manual and Parts Catalog #12A4171M09
P18 Ammonia Lowside Model
P18AL Service Manual
Page No.
1. INTRODUCTION
A Brief History Of Our Company .................................................................................................................................1-1
Vogt Energy-Savings Tube-Ice® Machines..................................................................................................................1-1
Preview .....................................................................................................................................................................1-1
Important Safety Notice.................................................................................................................................................1-2
Special Precautions To Be Observed When Charging Refrigeration Systems..............................................................1-2
Safety Symbols and What They Mean ............................................................................................. .............................1-3
Assembly Drawing Model P18AL, FIGURES 1-1, 1-2, 1-3 & 1-4...............................................................................1-4 to 1-7
2. RECEIPT OF YOUR TUBE-ICE MACHINE
Inspection .....................................................................................................................................................................2-1
Description of Machine .................................................................................................................................................2-1
Safety Tags and Labels..................................................................................................................................................2-1
Safety Valves.................................................................................................................................................................2-2
Rated Capacity................................................................................................................ ...............................................2-2
Vogt Model Nomenclature ............................................................................................................................................ 2-2
3. INSTALLING YOUR TUBE-ICE MACHINE
Machine Room .................................................................................................................. ............................................3-1
Lifting Procedures .........................................................................................................................................................3-1
Foundation Layout.........................................................................................................................................................3-2
Piping and Drain Connections, TABLE 3-1.................................................................................................................3-2
Make-up Water In..........................................................................................................................................................3-3
Water Tank Drain ..........................................................................................................................................................3-3
Water Tank Overflow....................................................................................................................................................3-3
Water Tank Flush Valve................................................................................................................................................3-3
Receiver, Table 3-2........................................................................................................................................................3-3
Suction Pressure Regulator............................................................................................................................................3-4
Compressor Unloading ..................................................................................................................................................3-4
Safety Valves.................................................................................................................................................................3-4
Cooling Tower...............................................................................................................................................................3-4
Spacing and Connection Diagram, FIGURE 3-1...........................................................................................................3-5
Piping Schematic (Dedicated High Side), FIGURE 3-2................................................................................................3-6
Piping Schematic (Central High Side), FIGURE 3-3....................................................................................................3-7
Wiring and Electrical Connection, FIGURE 3-4...........................................................................................................3-8
Control Panel Field Connections, FIGURE 3-5.............................................................................................................3-9
Electrical Specifications, Table 3-2...............................................................................................................................3-9
Phase Check...................................................................................................................................................................3-10
Voltage and Current unbalance......................................................................................................................................3-10
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TABLE OF CONTENTS
Vogt
i
TABLE OF CONTENTS
®
TUBE-ICE® MACHINES
Model P18AL
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TABLE OF CONTENTS
Page No.
3. INSTALLING YOUR TUBE-ICE MACHINE (Cont.)
Startup Checklist............................................................................................................................................................3-11
4. HOW YOUR TUBE-ICE MACHINE WORKS
Principle of Operation....................................................................................................................................................4-1
Freeze Period.................................................................................................................................................................4-2
Harvest Period ...............................................................................................................................................................4-2
Piping Nomenclature, Table 4-1....................................................................................................................................4-2
Water Cooled Piping Schematic, FIGURE 4-1..............................................................................................................4-3
Air-Cooled Piping Schematic, FIGURE 4-2..................................................................................................................4-4
5. START-UP AND OPERATION
Refrigeration System Review........................................................................................................................................5-1
Refrigerant Charge ........................................................................................................................................................5-2
Ammonia Specification By Grade, Table 5-1................................................................................................................5-2
Special Precautions........................................................................................................................................................5-2
Charging From Tank Truck (dedicated high side only).................................................................................................5-2
Charging From Cylinders (dedicated high side only)....................................................................................................5-3
Charging Operating Characteristics .............................................................................................................................. 5-4
Start-up Procedure ........................................................................................................................................................5-5
Thaw Gas Regulating and Suction Gas Regulating Valve Adjustment ........................................................................5-6
Shut-down Procedure ....................................................................................................................................................5-6
Operating Tips ..............................................................................................................................................................5-7
6. ELECTRICAL CONTROLS & THEIR FUNCTIONS
General Information.......................................................................................................................................................6-1
Control Panel (Door Closed), FIGURE 6-1...................................................................................................................6-2
Control Panel Components and Part Numbers (External), TABLE 6-1.........................................................................6-2
Control Panel (Door Opened), FIGURE 6-2..................................................................................................................6-3
Control Panel Components and Part Numbers (Internal), TABLE 6-2..........................................................................6-3
Description of Control Panel Component Function, TABLE 6-3..................................................................................6-4
Electrical Schematic All Voltages 50-60 Hz, FIGURE 6-3...........................................................................................6-5
7. MAINTENANCE
Preventive Maintenance.................................................................................................................................................7-1
Preventive Maintenance Form.......................................................................................................................................7-2
Ice-Making Section........................................................................................................................................................7-3
Cleaning Procedure........................................................................................................................................................7-3
Water Distribution System ............................................................................................................................................7-4
Water Distributors, TABLE 7-1 ..............................................................................................................................7-4
Average Hole Size in Tube-Ice
Water Tank..............................................................................................................................................................7-4
Freezer Cover ..........................................................................................................................................................7-4
Other Maintenance Operations ......................................................................................................................................7-5
Cutter Gear Reducer................................................................................................................................................7-5
P18AL Service Manual
®
, TABLE 7-2 ........................................................................................................7-4
P18AL Service Manual
7. MAINTENANCE (Cont.)
Oil Trap Draining ..........................................................................................................................................................7-5
Optional Maintenance Operations .................................................................................................................................7-5
Water Cooled Condenser Cleaning..........................................................................................................................7-5
Cooling Tower/Evaporative Condenser...................................................................................................................7-6
Compressor..............................................................................................................................................................7-7
8. TROUBLESHOOTING
List Of Symptoms..........................................................................................................................................................8-1
Machine Stopped ...........................................................................................................................................................8-2 & 8-3
Freeze-Up Due To Ice Failing To Discharge.................................................................................................................8-3
Low Ice Capacity...........................................................................................................................................................8-4
Poor Ice Quality.............................................................................................................................................................8-5
High Discharge Pressure (Check Gage Accuracy)........................................................................................................8-5
Low Discharge Pressure (Check Gage Accuracy).........................................................................................................8-5
High Suction Pressure (Check Gage Accuracy)............................................................................................................8-6
Compressor Running Unloaded During Freeze (Dedicated Compressor Only) ............................................................8-6
Compressor Oil Pressure Low (Check Gage Accuracy)................................................................................................8-6
Compressor Loosing Oil Excessively ............................................................................................. ...............................8-6
Machine Short Cycles (Using Freeze Pressure Switch (FPS) Only)..............................................................................8-7
High Compressor Discharge Temperature.....................................................................................................................8-7
Suction Line Frosting To Compressor...........................................................................................................................8-7
9. SERVICE OPERATIONS
Thawing Timer (T), FIGURE 9-1..................................................................................................................................9-1
Freeze Timer (T2)..........................................................................................................................................................9-1
Digital Timer Setting Procedure....................................................................................................................................9-1
Multi-function Digital Freezer Timer, FIGURE 9-2......................................................................................................9-2
Conveyor Timer (T3).....................................................................................................................................................9-2
Flush Valve Timer (T4).................................................................................................................................................9-2
Make-up Water Float Valve (37A)................................................................................................................................9-3
Refrigerant Float Switch (23) ........................................................................................................................................9-3
Hand Expansion Valve (9).............................................................................................................................................9-3
Solenoid Valves (18, 25) ...............................................................................................................................................9-3
Control Circuit Protection (CB1)...................................................................................................................................9-3
Cutter Motor (3) / Gear Reducer (4)..............................................................................................................................9-3
Circulating Water Pump ................................................................................................................................................9-4
Pumpdown 9-4
Pumpdown Procedure....................................................................................................................................................9-4
Removal of Ammonia Refrigerant.................................................................................................................................9-5
Refrigerant Leaks ..........................................................................................................................................................9-5
Non-condensable Gases.................................................................................................................................................9-6
Purging Non-condensable Gases...................................................................................................................................9-6
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TABLE OF CONTENTS
Page No.
9. SERVICE OPERATIONS (Cont.)
Purging Procedure (Non-condensable Gases)................................................................................................................9-6
Draining the Oil Trap ....................................................................................................................................................9-7
Oil Trap Draining Procedure.........................................................................................................................................9-7
Removing Excess Water From Ammonia.....................................................................................................................9-7
Water Removal Procedure.............................................................................................................................................9-7
Cutter Motor Removal/Replacement.............................................................................................................................9-9
Cutter Gear Reducer Removal/Replacement.................................................................................................................9-9
Water Tank Removal.....................................................................................................................................................9-9
Cutter and Bearing Removal/Installation.......................................................................................................................9-10
Cutter/Water Tank Parts List, TABLE 9-1....................................................................................................................9-11
Cutter/Water Tank Assembly, FIGURE 9-3..................................................................................................................9-12
Cutter/Tank Parts, FIGURE 9-4 ....................................................................................................................................9-13
Crushed Ice Production..................................................................................................................................................9-13
10. TABLES AND CHARTS
P18AL Specifications (60 Hz), TABLE 10-1................................................................................................................10-2
P18AL Capacity Ratings (7/8” Diameter Ice – 1” Tube), TABLE 10-2 .......................................................................10-3
P18AL Capacity Ratings (1 1/8” Diameter Ice – 1 1/4” Tube), TABLE 10-3 ..............................................................10-3
P18AL Capacity Ratings (1 3/8” Diameter Ice – 1 1/2” Tube), TABLE 10-4 ..............................................................10-4
P18AL Make-up Water Usage, TABLE 10-5................................................................................................................10-4
P18AL Normal Operating Vitals, TABLE 10-6............................................................................................................10-5
Recommended Spare Parts List.....................................................................................................................................10-5
Temperature - Pressure Chart for Common Refrigerants, TABLE 10-7.......................................................................10-6
Conversion Factors: English to Metric, TABLE 10-8...................................................................................................10-7
Constants, TABLE 10-9 ...............................................................................................................................................10-7
11. INDEX
P18AL Service Manual
P18AL Service Manual
A Brief History Of Our Company Henry Vogt Machine Co. was founded as a small machine shop in Louisville, Kentucky in 1880. In 1938, Vogt built the first Tube-Ice® machine and revolutionized the ice-making industry. Our first “sized-ice” machine quickly replaced the old can-ice plants, which required much hard labor and large amounts of floor space for freezing, cutting, and crushing ice by hand.
Today, TUBE ICE®, LLC carries on the tradition as one of the world’s leading producers of ice­making equipment.
Vogt Energy-Saving Tube-Ice Machines Are Cost Effective
enjoy a well-earned reputation as the most energy efficient, dependable ice-making equipment in the world.
Using as little as one-half to one-third the energy required by competitors’ icemakers, Tube-Ice machines produce the same amount of ice--in restaurants, sports arenas, packing plants, and wholesale operations around the globe--at great savings.
In addition, Tube-Ice® machines are renowned for their long life, giving many customers more than 35 years of dependable service. Ask someone who owns one.
Preview All the skill in engineering and fabrication that we have learned in over a century of experience is reflected in the P18AL model Tube-Ice® machines. Since Vogt introduced Tube-Ice® machines in 1938, the process of making Tube-Ice® ice has been widely recognized as the most economical means of production. The machine’s economic and reliable operations have been proven over and over again in a network of varied types of installations throughout the world.
Furnished with your machine is the “Certificate of Test”--the report of operating data that is a record of the unit’s satisfactory operation on our factory test floor. It is evidence of our desire to deliver to you “the finest ice-making unit ever made.”
This manual is designed to assist you in the installation, start-up, and maintenance of your unit. Your Tube-Ice® machine will give you a lifetime of service when you install it, maintain it, and service it properly.
Please read your manual carefully before attempting installation, operation, or servicing of this professionally designed piece of equipment.
If you have additional questions, please call your distributor. Also, feel free to phone the factory direct at (502) 635-3000 or 1-800-853-8648.
6/19/07
1. Introduction
TUBE ICE®, LLC
INTRODUCTION
Today, Vogt Tube-Ice® machines
®
1-1
1-2
INTRODUCTION
Important Safety Notice. This information is intended for use by individuals possessing adequate backgrounds of electrical, refrigeration and mechanical experience. Any attempt to repair major equipment may result in personal injury and property damage. The manufacturer or seller cannot be responsible for the interpretation of this information, nor can it assume any liability in connection with its use.
Special Precautions To Be Observed When Charging Refrigeration Systems. Only technically qualified persons, experienced and knowledgeable in the handling of anhydrous ammonia refrigerant (R-717) and operation of refrigeration systems, should perform the operations described in this manual. All local, federal, and EPA regulations must be strictly adhered to when handling refrigerants. If a refrigeration system is being charged from refrigerant cylinders, disconnect each cylinder when empty or when the system is fully charged. A gage should be installed in the charging line to indicate refrigerant cylinder pressure. The cylinder may be considered empty of liquid R-717 refrigerant when the gauge pressure is 25 pounds or less, and there is no frost on the cylinder. Close the refrigerant charging valve and cylinder valve before disconnecting the cylinder. Loosen the union in the refrigerant charging line--carefully to avoid unnecessary and illegal release of refrigerant into the atmosphere.
Immediately close system charging valve at commencement of defrost or thawing cycle if refrigerant cylinder is connected. Never leave a refrigerant cylinder connected to system except during charging operation. Failure to observe either of these precautions can result in transferring refrigerant from the system to the refrigerant cylinder, over-filling it, and possibly causing the cylinder to rupture because of pressure from expansion of the liquid refrigerant.
Always store cylinders containing refrigerant in a cool place. They should never be exposed to temperatures higher than 120°F and should be stored in a manner to prevent abnormal mechanical shocks.
Also, transferring refrigerant from a refrigeration system into a cylinder can be very dangerous and is not recommended.
It is not recommended that refrigerant be transferred from a refrigeration system directly into a cylinder. If such a transfer is made, the refrigerant cylinder must be an approved, CLEAN cylinder--free of any contaminants or foreign materials--and must be connected to an approved recovery mechanism with a safety shutoff sensor to assure contents do not exceed net weight specified by cylinder manufacturer or any applicable code requirements.
P18AL Service Manual
! CAUTION !
! CAUTION !
! CAUTION !
! CAUTION !
6/19/07
P18AL Service Manual
Safety Symbols & What They Mean. Prior to installation or operation of the Tube-Ice® machine, please read this manual. Are you familiar with the installation, start-up, and operation of a Tube­Ice® machine? Before you operate, adjust or service this machine, you should read this manual, understand the operation of this machine, and be aware of possible dangers.
These Safety Symbols will alert you
when special care is needed.
Please heed.
! DANGER !
Indicates an immediate hazard and that special precautions
are necessary to avoid severe personal injury or death.
! DANGER !
! WARNING !
Indicates a strong possibility of a hazard and that an
unsafe practice could result in severe personal injury.
! WARNING !
! CAUTION !
Means hazards or unsafe practices could result
in personal injury or product or property damage.
! CAUTION !
INTRODUCTION
1-3
6/19/07
1-4
INTRODUCTION
P18AL Service Manual
6/19/07
FIGURE 1-1
P18AL Front View
P18AL Service Manual
INTRODUCTION
1-5
6/19/07
FIGURE 1-2
P18AL Back View
1-6
INTRODUCTION
P18AL Service Manual
6/19/07
FIGURE 1-3
P18AL Left View
P18AL Service Manual
INTRODUCTION
1-7
6/19/07
FIGURE 1-4
P18AL Right View
1-8
INTRODUCTION
P18AL Service Manual
6/19/07
P18AL Service Manual
RECEIPT OF YOUR TUBE-ICE MACHINE
2. Receipt Of Your Tube-Ice Machine
! CAUTION !
Only service personnel experienced in ammonia refrigeration and
qualified to work on high amperage electrical equipment should
be allowed to install or service this Tube-Ice® machine.
Eye protection should be worn by all personnel
working on or around the Tube-Ice® machine.
It is very important that you are familiar with and adhere to
all local, state, and federal, etc. ordinances and laws regarding
the handling, storing, and use of anhydrous ammonia.
An approved ammonia mask should be readily available
for use in an emergency and all personnel should be aware
of its location and proper use.
! CAUTION !
Inspection As soon as you receive your machine, inspect it for any damage. If damage is
suspected, note it on the shipper’s papers (i.e., the trucker’s Bill of Lading). Immediately make a separate written request for inspection by the freight line’s agent. Any repair work or alteration to the machine without the permission of the Tube-Ice, LLC can void the machine’s warranty. You should also notify your Vogt distributor or the factory.
Description Of Machine A Vogt low side Tube-Ice® machine is a remote ice producing plant requiring refrigerant suction connection, refrigerant liquid connection, thaw gas connection, make­up water supply, electrical connection, and the proper refrigerant charge.
The machine has been partially factory tested prior to shipment and will require adjustment to meet the high side (condenser unit) operating conditions. See Start-up and Operation for the correct setting of the controls.
The machine is evacuated and charged with nitrogen gas pressure for shipment. This prevents air or moisture from entering the system during transit. There should be a positive pressure (20-25 psig) indicated on the freezer pressure gage when the machine is received. The machine has been cleaned with ice machine cleaner and flushed so that the machine is ready for ice production.
Safety Tags and Labels Be sure to read and adhere to all special tags and labels attached to valves or applied to various areas of the machine. They provide important information necessary for safe and efficient operation of your equipment.
The machine is available in three different tube sizes for producing ice 7/8” OD x 1” long, 1 1/8” OD x 1” long, or 1 3/8” OD x 1” long. The ice is cut to length by a rotating breaker type cutter. Ice can be produced up to 1 1/2” long by modifying the spacers under the adapter plates (see Chapter 9, “Ice Length” for modifying instructions).
2-1
6/19/07
2-2
y
RECEIPT OF YOUR TUBE-ICE MACHINE
Safety Valves Two safety pressure relief valves are an integral part of the low-side Tube-Ice® machine. Both are located on the top of the freezer. Vent the pressure relief valves to the atmosphere in such a manner as to comply with local and national codes.
Rated Capacity The Tube-Ice® machine is rated to produce a given amount of ice when operating under the proper conditions as specified in this manual (see Section 10 for the operating specifications). You should be prepared to handle the ice produced as it is discharged from the machine and move it to your storage or bagging area promptly.
The machine nameplate is located on the front of the control panel. The model number and machine description are located in the top left hand corner. The following figure can be used to verify that the correct model has been received.
P18AL Service Manual
Nominal Capacity "02K" - 2000 lbs/day ( "03K" - 3000 lbs/day "04K" - 4000lbs/day ( "03T" - 3 tons/day "05T" - 5 tons/day "10T" - 10 tons/day "25T" - 25 tons/day "50T" - 50 tons/day "80T" - 80 tons/day
Basic Configuration
"P" - Package "L" - Low-side "H" - High-side
Tube Size (in 1/4's of an inch) "4" - 1" "5" - 1 1/4" "6" - 1 1/2" "8" - 2"
"K" = 1000's lbs/day, "T" = tons/day)
Consult Specifications for Actual Capacity)
Model Variation
A number assigned to indicate major variations within an
Refrigerant
"F" - R-22 "A" - Ammonia "H" - R-404a
Electrical Codes
"26" - 208/230-3-60 "46" - 460-3-60 "56" - 575-3-60 "25" - 200-3-50 "45" - 400-3-50 "21" - 230-1-60
one family series.
Type of Ice
"B" - Cylinder "K" - Crushed "D" - Dual Ice (Cru & Cyl) "L" - 1 1/2" Long Cylinder "X"- 2” Long Cylinder
XXXX – XXXX – XXXX – XXX
Condenser Type
"AC" - Air Cooled "WC" - Water Cooled "HP" - High Pressure Water Cooled "SW" - Sea Water "NC" - No Condenser
6/19/07
Product Variation Codes (An alphanumeric designator assigned to specific variations.) "000 or Blank" – Standard Product If unsure of the product code shown on your machine please consult the factory.
Figure 2-1
Vogt Model Nomenclature
P18AL Service Manual
INSTALLING YOUR TUBE-ICE
®
MACHINE
3-1
3. Installing Your Tube-Ice
®
Machine
! WARNING !
Only service personnel experienced and certified in refrigeration and qualified to work
with high voltage electrical equipment should be allowed to install or work
on this Tube-Ice® machine.
! WARNING !
Important Notice.
The Warranty Registration / Start-Up Form must be completed and returned to Vogt Tube-Ice provided or you may fax the report to 800-770-8648.
Machine Room
subjected to ambient temperatures below 50°F (10°C) or above 110°F (43.3°C). Heat from other sources (sunlight, furnaces, condenser, etc.) and unusual air current may affect the operation of the machine and should be avoided.
The electrical components of the Tube-Ice® machine are rated NEMA 1. The machine should not be located in a hazardous area or sprayed with water. The machine should be installed in an area where water will not stand but will readily drain away from the machine. See Space Diagram for clearances and utility connections, FIGURE 3-1.
Lifting Procedures
The machine body has a lifting lug on the top for an eyebolt and hook to be used for lifting purposes if desired. A lifting lug should be used whenever possible. If a forklift is used, make sure its capacity is sufficient. The machine needs to be lifted from the top to prevent tipping.
Do not lift the machine using the water box flange on the top of the freezer. The water box flange is not designed to carry the machine load. The flange could fail or bend causing damage or personal injury.
®
to initiate and assure a full warranty. A postage paid envelope is
The machine must be located inside a suitable building and must not be
! CAUTION !
The approximate shipping weight of the machine is 2,300 pounds.
Always use equipment with adequate load carrying capacity.
The Tube-Ice® machine is top heavy.
Lift from the top to avoid tipping.
! CAUTION !
1/22/07
3-2
INSTALLING YOUR TUBE-ICE
Foundation Layout
The machine foundation should be constructed from concrete or similar material in accordance with all local and federal OSHA codes and building regulations. The minimum required foundation size is shown in Figure 3-1. The foundations height will vary depending on the auxiliary equipment selected by the customer to transport ice to a bin or hopper. Adequate space should be allowed for removal of the water tank and servicing operations such as cleaning the water distributors.
Figure 3-1 indicates minimum mounting requirements. Contact your local distributor for seismic anchoring requirements in your area. Additional bracing may need to be added to the top of the machine mounted to the lifting lug to meet local codes.
Piping and Drain Connections
Figure 3-1 (Water Connections and Refrigerant Connections) shows locations and sizes for all connections on lowside.
External shut-off valves must be provided in the water inlet lines.
The minimum inlet water pressure for satisfactory operation of the machine is 30 psig.
Make-up Water In
Water Tank
Drain*
®
MACHINE
! CAUTION !
The approximate machine operating weight is 3,000 pounds.
! CAUTION !
! CAUTION !
The maximum allowable pressure is 100 psig.
! CAUTION !
Water Tank
Overflow
Water Tank
Flush Valve
Suction
Connection
**
Liquid
Connection***
P18AL Service Manual
Thaw Gas
Connection***
1/22/07
1/2” FPT 1” FPT 2” FPT 3/4” FPT 2” Flange 3/4” Flange 1 1/4” Flange
* The water tank drain connection must be extended to an open drain or sump, arranged for visible discharge. ** Mating 4 bolt flange supplied with machine. *** Mating 2 bolt flange supplied with machine.
TABLE 3-1
Water Supply and Drain Sizes
! CAUTION !
These lines must NOT be connected into a pressure tight common header
due to the possibility that warm condenser water may back up into the water tank.
The condenser water outlet MUST be piped separately to the drain.
! CAUTION !
P18AL Service Manual
INSTALLING YOUR TUBE-ICE
Make-Up Water In. The water required for ice making must be potable water, safe for human consumption, and should be of the highest quality available. The best way to determine water quality is to have a complete water quality analysis by a qualified laboratory.
It is advisable to install a particle filter in the make-up and flushing water lines to trap dirt, sand, rust, or other solid particles prior to entering the water tank and contaminating the ice. Be sure to size the filter large enough to meet the water demands of 15 GPM (peak flow), allowing for a restriction through the filter as it traps these particles. Minimum required supply pressure is 30 psig.
Water Tank Drain. This valve and connection is for the purpose of flushing and draining the water tank of impurities, foreign material and cleaning chemicals used during servicing. It should be piped to an open drain or sump for visible discharge. It can be tied in with the overflow line but no others.
Water Tank Overflow. A 2” FPT connection on the side of the water tank is provided to carry away overflow water during the thawing (harvest cycle). This water contains ice fines accumulated during harvesting and dissolved solids accumulated during the freezing cycle. Do not reduce the size of this line. Three inches is needed to provide sufficient area for ice fines to be flushed out, especially if the incoming flushing water is 55°F (13°C) or below. This overflow line should not tie in with any other drain line except the water tank drain.
Unless water quality is superior, do not discharge the overflow water to the cooling tower system. This water contains additional dissolved solids left from the ice making process and can lead to excessive condenser fouling or cooling tower chemical usage. It is recommended that a heat exchanger be used in place of direct contact with condenser water.
Water Tank Flush Valve. Flushing water (blowdown) is necessary to melt ice fines and flush dissolved solids from the water tank during the thawing (harvest) cycle. This function is important and helps to maintain good ice quality. If water quality is superior, this blowdown can be reduced by installing a smaller orifice in the flushing outlet elbow. Make sure there is enough flushing water to prevent the accumulation of excessive ice fines in the tank.
If make-up and flushing water are from the same source, they can be connected by a common line to the machine.
Receiver The receiver used to supply hot thaw gas must be sized adequately to provide sufficient
thaw gas. Table 3-2 shows the volume required to hold the refrigeration charge of the freezer and the hot gas required for the thaw cycle. It is recommended that a heating coil be installed in the receiver to assure that the liquid ammonia is at saturated temperature at the start of each thaw period.
Note: Additional storage volume may be required for the interconnecting piping. Add volume of interconnecting piping to the values shown in Table 3-2
MODEL
P18AL
With Heating Coil With out Heating Coil
RECEIVER VOLUME (Cubic Feet)
10 15
TABLE 3-2
Receiver Volume Requirements
®
MACHINE
3-3
1/22/07
3-4
INSTALLING YOUR TUBE-ICE
Suction Pressure Regulator
regulator will be required (see Figures 3-3 for location). This regulator (usually furnished by the purchaser) must be a combination back pressure regulating and stop type valve. The usual minimum pressure drop across this type valve is 2 psig, therefore the valve must be set to maintain a freezer pressure at least 2 psi above the maximum general suction pressure.
Compressor Unloading When a P18AL is attached to a dedicated compressor system
unloading of the compressor will be required. A minimum compressor unloading during the harvest cycle is 66%. If the compressor can not be unloaded then a hot gas bypass to the suction line must be installed.
Safety Valves
machine. They are located on the suction accumulator of the freezer. Vent each of the pressure relief valves to the atmosphere in such a manner as to comply with local and national codes. Refer to the International Institute of Ammonia Refrigeration (IIAR) standard for specific requirements and instructions.
Cooling Tower
bulb conditions. It is advisable to check with your local cooling tower distributor for their recommendations based on actual operating conditions in your area. An average wet-bulb of 78°F is typical in the U.S. but many localities have design wet-bulbs as low as 72°F or as high as 82°F.
The cooling tower water pump must be capable of delivering the required volume of water through the condenser. Due to cooling tower location and pressure drop through water lines and water regulating valves, the pump must be sized for each installation. Refer to TABLE 11-4 for condenser water requirements. The water piping for the cooling tower and the installation of the pump must be in accordance with the manufacturer’s instructions.
Proper water treatment for the prevention of mineral and foreign matter accumulation in the condenser or cooling tower is recommended. A water analysis should be obtained to determine the proper chemicals to use.
The condenser water pump should be sized on GPM required for condenser at 80 ft. total discharge head for a typical installation. However, due to cooling tower location and pressure drop through water lines, the water pump should be sized for each installation.
If the condenser inlet water temperature is expected to be below 75°F/24°C, a water regulating valve should be installed in the condenser water inlet line and adjusted to maintain a head pressure of not less than 175 psig.
P18AL Service Manual
®
MACHINE
When a P18AL is attached to a central system a pressure
Two safety pressure relief valves are an integral part of the packaged Tube-Ice®
When selecting a cooling tower, careful attention must be given to operating wet
1/22/07
P18AL Service Manual
INSTALLING YOUR TUBE-ICE
®
MACHINE
3-5
1/22/07
FIGURE 3-1
Spacing and Connection Diagram
3-6
INSTALLING YOUR TUBE-ICE
®
MACHINE
P18AL Service Manual
1/22/07
FIGURE 3-2
Piping Schematic (Dedicated High Side)
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