Vogt Tube-Ice P34HL User manual

Vogt Tube-Ice®
Large Size Machines
P34HL
Manual Part Number 12A4171M18
Vogt Ice®, LLC
1000 W. Ormsby Ave.
Suite 19
Louisville, KY 40210 USA
Since 1880
Sales + Service: 1-502-635-3000
Parts: Your Local Distributor
SuperCare Technical: 1-502-635-3510 or 1-502-635-3052
Service Manual
$50.00 USD

Important Safety Information
Any improper attempt to repair major equipment may result in personal injury, property damage,
or loss of life. Before installing, operating, adjusting, or servicing the HFO10, please read this manual and
become familiar with its contents, understand the operation of this machine, and be aware of possible dangers.
Safety Symbols and What They Mean
Heed the following safety symbols, which may appear in this manual and/or on the machine.
Symbol
Meaning
Danger: Indicates an immediate hazard and that special precautions are necessary to
avoid severe personal injury or death.
Warning: Indicates a strong possibility of a hazard and that an unsafe practice could
result in severe personal injury.
Caution: Indicates that hazards or unsafe practices could result in personal injury or
damage to product or property.

NOTICE
This manual belongs to the owner of the following Vogt Ice machine:
Model #____________________ Serial #____________________
This manual must remain on the premises with the above-listed machine at all times. After machine start-up,
store the manual in a safe place where it can be readily available for future reference in maintaining,
troubleshooting, or servicing the machine. Designate a person to be responsible for the manual.
Failure to comply with this notice will result in unnecessary inconvenience and possible additional expenses.
This manual is designed to assist with the installation, start-up, operation, maintenance, troubleshooting, and
servicing of this equipment. This Tube-Ice® machine is designed to provide a lifetime of service when installed,
maintained, and serviced properly.
This information is intended for use by individuals with adequate backgrounds in electrical, refrigeration, and
mechanical expertise. Neither the manufacturer nor seller is responsible for the interpretation of this
information, nor can they assume any liability in connection with its use.
If a situation calls for additional information not found in this manual, contact your distributor. If further
assistance or information is needed, contact the factory by calling 1-502-635-3000 or faxing 1-502-635-3024.
Please read this manual carefully before attempting installation, operation, or servicing of this professionally
designed piece of equipment.
The SuperCare group at Vogt Ice, LLC, provides assistance for all customer service needs, including part sales and
warranty support. SuperCare also conducts training schools at the factory and can offer onsite training if
needed.
The model and serial number of this Vogt equipment is located on the nameplate attached to the electrical
control panel. If an electrical control panel was not furnished with this machine, the nameplate is located on the
equipment frame or paneling. To enable SuperCare to handle your questions quickly and accurately, refer to the
model and serial number when making inquiries about this machine.
Warranty Registration/Start-Up Form
The Warranty Registration/Start-Up Form on the next page must be completed and returned to Vogt Ice, LLC,
within 2 weeks after the official start-up of the machine to initiate and ensure a full warranty. The form must be
completed and either mailed to the address below, scanned and emailed to [email protected]om, or faxed to
1-800-770-8648. This form is also available online at www.vogtice.com/warrantyregistration/.
Please mail the completed form to:
Vogt Ice, LLC
1000 W. Ormsby Ave.
Suite 19
Louisville, KY 40210 USA

Vogt Ice, LLC
1000 W. Ormsby Ave, Ste. 19
Louisville, KY 40210 USA
Phone: [phone]
Fax: [phone]
Vogt Order No.:
THIS FORM MUST BE SENT TO VOGT TO ACTIVATE
WARRANTY
Warranty Registration/Start-Up Form –Mid-Size Tube-Ice® 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:
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
OPERATION CHECK
Machine room suitable (50°F [10°C] min./110°F [43°C] max.)
Power Supply ____ V _____ Hz (machine not running)
Compressor crankcase heater on 12-hour minimum
(packaged only)
All valves opened or closed as tagged
Solenoid valve stems in auto position
System checked for leaks and none found; all connections
tight
Auxiliary equipment overloads wired into control circuit
Water supply and drains connected properly
Sufficient makeup water supplied (minimum 30 psig [2 bar])
Instruction manual and warranty certificate left onsite
Name of person left with:
________________________________________
Pump motor rotation direction correct
Compressor motor rotation direction correct (packaged only)
Power supply ____ V ____ Hz (machine running)
Water pump amps RLA ____ Actual ____
Condenser motor amps ____ (packaged only, if applicable)
Incoming water temperature ____ °F (°C)
Clear ice Yes No
Suction pressure (psig [bar]): End of freeze ____
End of defrost ____ (packaged only)
Discharge pressure (psig [bar]): End of freeze ____
End of defrost ____ (packaged only)
Comments:
I certify that I have performed all the above procedures.
Technician Signature:
Customer Signature:

i
Table of Contents
P34HL Large Size Ice Machine
Important Safety Information ................................................................................................................................3
Safety Symbols and What They Mean................................................................................................................3
NOTICE....................................................................................................................................................................4
Warranty Registration/Start-Up Form....................................................................................................................4
Chapter 1 Introduction .........................................................................................................................1-1
Chapter 2 How the P34HL Machine Works ............................................................................................2-1
Principles of Operation....................................................................................................................................... 2-1
Model Number ................................................................................................................................................... 2-2
Piping.................................................................................................................................................................. 2-3
Freezing Period................................................................................................................................................... 2-6
Harvest Period.................................................................................................................................................... 2-6
Refrigeration System Overview of Optionally Supplied HFOPAK50................................................................... 2-7
Charging Refrigeration Systems ..................................................................................................................... 2-8
Chapter 3 Receipt of Machine...............................................................................................................3-1
State of New Machine........................................................................................................................................ 3-1
Inspection ........................................................................................................................................................... 3-1
Delivery Inspection Checklist.......................................................................................................................... 3-1
Safety Tags and Labels........................................................................................................................................ 3-1
Pressure Relief Valves......................................................................................................................................... 3-1
Machine Location ............................................................................................................................................... 3-2
Equipment Storage............................................................................................................................................. 3-2
Rated Capacity.................................................................................................................................................... 3-2
Chapter 4 Installation of the P34HL.......................................................................................................4-1
Machine Connections......................................................................................................................................... 4-1
Equipment Layout and Service Access ............................................................................................................... 4-5
Lifting Procedures............................................................................................................................................... 4-7
Equipment Anchoring....................................................................................................................................... 4-11
Piping and Drain Connections .......................................................................................................................... 4-12
Cooling Tower (Optional) ................................................................................................................................. 4-12
Pressure Relief Valves....................................................................................................................................... 4-12
Wiring and Electrical Connections.................................................................................................................... 4-13
Phase Check...................................................................................................................................................... 4-14
Voltage Imbalance............................................................................................................................................ 4-14
Current Imbalance............................................................................................................................................ 4-15
Ice Bin Thermostat Sensor................................................................................................................................ 4-15
Installation Checklist......................................................................................................................................... 4-16
Chapter 5 Start-Up, Shutdown, and Operation ......................................................................................5-1
Start-Up Checklist............................................................................................................................................... 5-1
Start-Up Procedure (Initial Start-Up).................................................................................................................. 5-1
Shutdown Procedure.......................................................................................................................................... 5-2
Start-Up and Shutdown Tips .......................................................................................................................... 5-2
Ice Quality........................................................................................................................................................... 5-2

ii
Adding Refrigerant.............................................................................................................................................. 5-3
Chapter 6 Electrical Controls and Their Functions ..................................................................................6-1
Allen Bradley PLC with Touch Screen HMI ......................................................................................................... 6-6
HMI Main Menu ................................................................................................................................................. 6-6
For Optionally Supplied HFOPAK50 Remote High Sides ................................................................................ 6-8
HMI Primary Submenus...................................................................................................................................... 6-8
HMI Home Screen............................................................................................................................................. 6-13
For Optionally Supplied HFOPAK50 Remote High Sides .............................................................................. 6-15
HMI Detailed Screens ....................................................................................................................................... 6-16
Control Panel Details........................................................................................................................................ 6-31
Chapter 7 Maintenance ........................................................................................................................7-1
Cleaning .............................................................................................................................................................. 7-1
Water Distributors.......................................................................................................................................... 7-4
Water Tank..................................................................................................................................................... 7-6
Freezer Cover ................................................................................................................................................. 7-6
Water-Cooled Condensers ............................................................................................................................. 7-6
Chemical Cleaning .......................................................................................................................................... 7-7
Mechanical Cleaning ...................................................................................................................................... 7-8
Lubrication of the Cutter Motor Gear Reducer.................................................................................................. 7-9
Preventive Maintenance .................................................................................................................................. 7-10
Daily Checklist............................................................................................................................................... 7-10
Weekly Checklist........................................................................................................................................... 7-10
Monthly or Yearly Checklist.......................................................................................................................... 7-10
Preventive Maintenance Form......................................................................................................................... 7-12
Chapter 8 Troubleshooting ...................................................................................................................8-1
Machine Not Running......................................................................................................................................... 8-1
Freeze-Up from Extended Freeze Period ........................................................................................................... 8-2
Freeze-Up from Ice Failing to Discharge............................................................................................................. 8-3
Poor Ice Quality .................................................................................................................................................. 8-4
Low Ice Capacity ................................................................................................................................................. 8-4
High Head Pressure (Water-Cooled Machines).................................................................................................. 8-5
Chapter 9 Servicing Operations.............................................................................................................9-1
Automatic Blowdown......................................................................................................................................... 9-1
Makeup Water Float Valve................................................................................................................................. 9-1
Hand Expansion Valve ........................................................................................................................................ 9-1
Freezer Pressure Switch on Touch Screen HMI.................................................................................................. 9-1
Freeze Timer on Touch Screen HMI ................................................................................................................... 9-1
Low Pressure Safety on Touch Screen HMI........................................................................................................ 9-1
High Pressure Safety on Touch Screen HMI ....................................................................................................... 9-2
Head Pressure Control........................................................................................................................................ 9-2
Control Circuit Protection................................................................................................................................... 9-2
Harvest Timer ..................................................................................................................................................... 9-2
Pumpdown ......................................................................................................................................................... 9-3
Refrigerant Leaks................................................................................................................................................ 9-4
Non-Condensable Gases..................................................................................................................................... 9-4
Valve Stations ..................................................................................................................................................... 9-5
Capacitive Level Control ..................................................................................................................................... 9-6
Set Point and Operation................................................................................................................................. 9-7

iii
Low Level Adjustment .................................................................................................................................... 9-7
Control Level Adjustment............................................................................................................................... 9-7
High Level Adjustment ................................................................................................................................... 9-8
Simulation....................................................................................................................................................... 9-8
Recalibration .................................................................................................................................................. 9-8
Circulating Water Pump Motor ........................................................................................................................ 9-10
Cutter Gear Reducer......................................................................................................................................... 9-11
Cutter Motor Replacement .............................................................................................................................. 9-11
Drive Gear Replacement................................................................................................................................... 9-11
Gear Reducer Replacement.............................................................................................................................. 9-12
Water Tank Removal ........................................................................................................................................ 9-13
Cutter Assembly Removal and Reinstallation .................................................................................................. 9-14
Bearing Bracket and Cutter Disc Removal........................................................................................................ 9-14
Cutter Shaft and Bearing Removal ................................................................................................................... 9-14
Cutter Ring Gear Replacement......................................................................................................................... 9-15
Cutter Blade Replacement................................................................................................................................ 9-15
Cutter Adapter Plate Installation...................................................................................................................... 9-16
Cutter Shaft and Bearing Installation ............................................................................................................... 9-16
Cutter Height Adjustment ................................................................................................................................ 9-17
Water Tank Installation .................................................................................................................................... 9-17
Circulating Water Pump Motor ........................................................................................................................ 9-21
Crushed Ice Production .................................................................................................................................... 9-21
Appendix A Optional Accessories............................................................................................................ A-1
Power Monitor, Wagner Model DTP-3...............................................................................................................A-1
The Display .....................................................................................................................................................A-1
Adjustment of Parameters in Order of Display..............................................................................................A-2
Appendix B Tables.................................................................................................................................. B-1
Appendix C Additional Documentation....................................................................................................C-1

1-1
Chapter 1 Introduction
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 ice production. These machines’ economic and reliable operation
has been proven repeatedly in a variety of installations throughout the world. The skill in engineering and
fabrication Vogt Ice has learned in more than eight decades of experience is reflected in your machine.
Using as little as one-third of the energy required by competing ice makers, Tube-Ice® machines produce the
same amount of ice at great savings—in restaurants, sports arenas, packing plants, and wholesale operations
around the world.
In addition, Tube-Ice® machines are renowned for their long service life, giving many customers more than
35 years of dependable service. Ask someone who owns one.
The P34HL machine was introduced in 2021 as the next evolution of the Tube-Ice machine. It was developed to
provide end users with a long-term synthetic refrigerant solution for low side ice makers.
Hydrofluorocarbon (HFC) refrigerants are experiencing a phase-out in a variety of markets across the globe
because of their high Global Warming Potential (GWP). This forces Original Equipment Manufacturers (OEMs) to
build forward-thinking business strategies when selecting a replacement refrigerant for use in their equipment.
The challenge with implementing synthetic refrigerants in ice machines is to find the perfect balance between
something that will work well in the application and be available for purchase for the foreseeable future. Finding
this balance has been Vogt’s focus.
Vogt’s long-term refrigerant solution is HFO (hydrofluoroolefin) blends with similar properties as R134a. These
HFO-based refrigerants have very low GWPs, which are in line with the European Union F-Gas Regulation phase-
down and with projected refrigerant regulations in the United States.
In November 2017, at the International Packaged Ice Association convention, Vogt introduced the HFO10 mid-
size self-contained machine. It is the first Tube-Ice machine designed to run on an HFO blend (R-513A). This
blend, along with other R134a-like HFO blends, is expected to be a long-term synthetic refrigerant solution.
However, HFO blends are likely to be replaced by pure HFO refrigerants of the R1234-family. These pure HFOs
will be retrofittable to the P34HL machine, giving it a secure and well-defined future as the market evolves.
The P34HL is the continuation of Vogt’s new focus to innovate and introduce superior products to the
marketplace.

1-2

2-1
Chapter 2 How the P34HL Machine Works
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.
Principles of Operation
Manual operation of the machine is controlled by the Off, Ice, and Start touch screen buttons on the Home
screen of the HMI. These buttons appear on the default screen when power is supplied to the machine.
Note: Further references in this manual to the Off, Ice, Start, or Run Water Pump buttons are found on the
Home screen of the HMI. See Chapter 6.
Figure 1: Control Panel Door
Automatic operation is controlled by the standard ice bin thermostats, which stop and start the ice maker based
on the level of ice in the storage bin.
The length of ice produced is determined by how the machine cutter is set.
The unit will only stop when a thawing (harvest) period has been completed, whether by the pressing the Off
touch screen button or the ice bin thermostat. To stop the machine instantly, push the E-Stop button. To restart
the machine, turn the E-Stop button clockwise, clear the E-Stop fault on the touch screen, and push the Start
touch screen button.

2-2
Model Number
The machine nameplate is located on the left side of the control panel. The model number and machine
descriptions are located in the top left-hand corner. Figure 2 can be used to verify that the correct model has
been received.
Figure 2: Vogt Model Nomenclature

2-3
Piping
Table 1 lists the piping nomenclature as labeled in Figure 3 and Figure 4, which illustrate the piping schematics
of the refrigerant and water circuits of water- and air-cooled Tube-Ice® machines.
Table 1: P34HL and Optional HFOPAK50 Piping Nomenclature
Description
Description
T
Make-Up Water Thermometer
52
3-Way Valve
6
Recirculating Water Pump
58
Liquid Isolation Valve (King Valve)
12
Make-Up Water Float Valve
59
Receiver Purge Valve
17
Main Liquid Line Valve Station
61
Freezer Drain Valve
18
Main Thaw Gas Valve Station
62
Make-Up Water Inlet Valve
18A
Auxiliary Thaw Gas Valve Station
63
Solenoid Flush Valve
20
Liquid Line Bypass Valve Station
65
Level Column Probe
28
Freezer Charging Valve
67
Level Column Sight Glass
31
Level Column Isolation Valve
69
Accumulator Access Valve
31A
Level Column Drain Valve
70
Oil Return Isolation Valve
35
Discharge Isolation Valve
76
Freezer Purge Valve
39
Water Tank Drain Valve
90
Thaw Gas Isolation Valve
43
Strainer
91
Liquid Return Isolation Valve
44
Receiver Drain Valve
92
Equalizer Line Isolation Valve
45
Liquid Line Purge Valve
101
Thaw Gas Check Valve
51
Relief Valve

2-4
Figure 3: P34HL Low Side Only Piping Schematic

2-5
Figure 4: Optional HFOPAK50 High Side Piping Schematic for P34HL

2-6
Freezing Period
The freezer is a shell-and-tube type vessel, consisting of an outside shell with vertical tubes inside. Water freezes
inside the tubes by the direct application of refrigerant to the shell side (outside) of the tubes. Ice is produced as
the water continues to recirculate. As the ice thickens, the freezer suction pressure decreases. The Freezer
Pressure Switch automatically initiates the thawing, or harvest, period as the freezer pressure reaches the
setpoint in the PLC. The machine can also be set to run on the Freeze Timer. Refer to Freezer Pressure Switch on
Touch Screen HMI and Freeze Timer on Touch Screen HMI.
During the freezing period:
1. Water is constantly recirculated through the freezer tubes by a centrifugal pump.
2. Makeup water is maintained at the appropriate level by a float valve in the water tank.
3. A liquid line solenoid valve (A) is open, and a thaw gas solenoid valve (D) is closed.
4. Refrigerant gas from the top of the freezer passes through the suction accumulator, the heat exchanger,
and on to the remotely installed compressor package.
5. The following steps occur on optionally supplied HFOPAK50 remote high sides:
a. The cool gas is compressed to a high-temperature, high-pressure gas that discharges through
the oil separator and into the condenser.
b. In the condenser, heat is removed, and the gas is condensed to a high-temperature, high-
pressure liquid.
c. This high-pressure liquid goes through the accumulator boil-out coil and suction line heat
exchanger, where it gives up heat to the suction gas for compressor protection.
d. This liquid is subcooled and carried to the receiver.
e. Condensed liquid refrigerant from the receiver flows through the thawing chamber of the
freezer, the filter/dryer, the liquid line solenoid valve (A), and then the expansion valve and
capillary.
6. At the expansion valve and capillary feed, the refrigerant expands from a saturated liquid state of
relatively high pressure to a very low-pressure, low-temperature liquid.
7. The electronic liquid level indicator is wired to the liquid line solenoid valve (A).
8. The electronic liquid level indicator energizes and de-energizes the liquid line solenoid valve (A) in
response to the level of refrigerant in the freezer.
9. The cold liquid refrigerant enters the freezer, where it absorbs heat from the circulating water.
10. This cool gas is pulled out of the freezer at the suction outlet, thereby completing the circuit.
The freezing period is completed by the Freezer Pressure Switch or by the Freeze Timer in the PLC.
1. The water pump stops, and the liquid line solenoid valve (A) closes.
2. The thawing (harvest) period begins.
Harvest Period
During the harvest period:
1. The PLC stops the water pump, closes the liquid line solenoid valve (A) and starts the Harvest Timer.
2. The cutter motor starts after an adjustable Cutter Delay and the thaw gas solenoid valve (D) opens after
an adjustable Thaw Gas Valve Delay.
3. The adjustable Thaw Gas Valve setpoints stored in the PLC open and close the thaw gas solenoid valve
(D) valve to maintain the proper pressure for ice to release without adding unnecessary heat.
4. Warm gas from the receiver or main compressor discharge line enters the freezer through the valve, and
the outer edge of the ice slightly thaws for sizing by the rotating cutter.
5. As the ice releases and drops through the rotating cutter and onto the cutter disc, it discharges through
the side opening of the water tank.
6. The Harvest Timer is set for the time required to discharge all the ice plus 30 seconds (can be up to
5 minutes).

2-7
To prevent refreezing, make sure all ice clears the freezer with at least 30 seconds to spare
before the next freezing period begins.
Refrigeration System Overview of Optionally Supplied HFOPAK50
The HFOPAK50 is designed to operate on the hydrofluoroolefin (HFO) blend refrigerant R-513A.
It contains:
•Bitzer semi-hermetic compact screw compressor with integral oil separator
•Electronic refrigerant liquid level controller
•Expansion valve
•Flooded evaporator (freezer)
•Hot gas defrost
As shown in the piping schematic, the compressor discharge gas leaves the compressor and goes into the
condenser. Here, the gas is condensed into liquid as heat is removed from the water as it passes through the
condenser during the freezing period.
A reservoir of liquid is accumulated in the receiver and flows as required, passing through the coil in the suction
accumulator and then through the filter/dryers. The liquid line solenoid valve (A) on the P34HL opens and closes
in response to the liquid level in the freezer, as determined by the electronic liquid level controller on the side of
the freezer.
Liquid refrigerant floods the evaporator and comes in contact with the outside of the ice-making tubes through
which water is being circulated. The heat contained in this water passes through the walls of the tubes, lowering
the temperature of the water, causing it to freeze and to form a long tube of ice that adheres to the inside of
each freezer tube. Since the purest water freezes first, the flowing water keeps the accumulated ice clear by
washing separated solids down into the sump area of the water tank. The blowdown valve on the circulating
water pump discharge helps to rid the water tank of increased dissolved solids found in harder water by flushing
them out of the overflow during water pump operation.
During the harvest period, the water pump stops, therefore, all the water circulating in the freezer drops to the
tank, the tank level increases, and the overflow will get rid of that extra water. The overflow is a hole at the top
of the tank. Refer to Chapter 9 for more information about automatic blowdown.
The transfer of heat from the water to the liquid refrigerant causes it to boil and convert into a liquid-vapor
mixture at the suction connection at the top of the freezer. This liquid-vapor mixture passes through the suction
accumulator and suction line heat exchanger on the P34HL, which act as the first means of removing large
refrigerant droplets. From there, the mixture passes through the main suction accumulator on the HFOPAK50,
where liquid droplets are removed and boiled off from the internal heating coil. This removes the remaining
refrigerant droplets that may have passed through the system to this point, providing ample protection for the
screw compressor.
As the ice forms in the freezer tubes, the suction pressure steadily decreases until it reaches the Freezer
Pressure Switch setpoint or the Freeze Timer, initiating the harvest period.
During the harvest period, the thaw gas solenoid valve (D) is open, allowing warm high-pressure gas from the
receiver to enter the freezer. This heat melts a thin film from the outside of the ice, reducing the outside
diameter slightly, allowing it to fall free from the freezer tubes. This period may last up to 5 minutes.
Note: Freezing times will vary, depending on makeup water temperature and setting of the freezer pressure
switch. As you become more familiar with the operation of your machine, you will be able to recognize and
correct minor irregularities as they occur, which will help prevent major problems.

2-8
Charging Refrigeration Systems
Only technically qualified persons, experienced and knowledgeable in the handling of refrigerant
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.
The P34HL is not supplied with a refrigerant charge, but rather a small holding charge of nitrogen at 25 psi (1.7
bar). If supplied, the optionally available HFOPAK50 is also shipped with only a small holding charge of 25 psi (1.7
bar).
A gauge should be installed in the charging line to indicate refrigerant cylinder pressure. The cylinder may be
considered empty of liquid refrigerant when the gauge pressure is 25 psig (1.7 bar) 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 release of refrigerant into the
atmosphere. Refer to local and national regulations.
Immediately close the system charging valve at the commencement of the defrost or thawing
cycle if a refrigerant cylinder is connected. Never leave a refrigerant cylinder connected to the 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.
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 that is free of
any contaminants or foreign materials. The cylinder must be connected to an approved recovery mechanism
with a safety shutoff sensor to ensure that contents do not exceed the net weight specified by the cylinder
manufacturer or any applicable code requirements.