Taylor-Wharton EasyCarb User Manual

easyCarb™ Manual

TW-339
Keep Equipment area Well Ventilated. Carbon Dioxide can cause asphyxiation by
displacing oxygen needed for breathing, resulting in dizziness, unconsciousness, or
death. Carbon dioxide cannot be detected by the human senses and will be inhaled
like air. If adequate ventilation is not provided, the gas may displace normal air
without warning that a life-threatening atmosphere is developing. Store and use
carbon dioxide containers only in well ventilated areas.

Extreme cold can Injure Eyes and Skin. If released to atmosphere, liquid carbon
dioxide will turn to carbon dioxide snow or dry ice. Accidental contact of carbon
dioxide snow or cold gas with the skin or eyes may cause severe frostbite. If you are
accidentally exposed to cold snow or gas, consult a physician at once. Warm af­fected areas with water that is near body temperature as a first aid measure.

For additional information on carbon dioxide, ask your supplier for a Material
Safety Data Sheet on this gas. Material Safety Data Sheets contain complete
hazard and first aid information for the product they cover. For more informa­tion on the principles of operation and safe practices for carbon dioxide
equipment refer to the Compressed Gas Association publication G-6 avail­able from the Compressed Gas Association Inc. 1235 Jefferson Davis
Highway, Arlington, VA 22202.

3

CARBON
DIOXIDE
SAFETY
PRECAUTIONS

FREIGHT DAMAGE CLAIMS ARE YOUR RESPONSIBILITY. Liquid containers
are delivered to your carrier from Taylor-Wharton’s dock in new condition.
When you receive our product you may expect it to be in that same condition.
For your own protection, take time to visually inspect each shipment in the
presence of the carrier’s agent before you accept delivery. If any damage is
observed, make an appropriate notation on the freight bill. Then, ask the driver
to sign the notation before you receive the equipment. You should decline to
accept containers that show damage, which might affect serviceability.

The easycarb™ system consists of a vacuum-insulated liquefied gas container, and
its associated plumbing. The system is designed for permanent installation as a
source of gaseous carbon dioxide for soft drink carbonation. The easycarb™ unit is
manufactured to the ASME pressure vessel code.

The easycarb™ container is filled from an outside fill station without interrupting the
flow of gaseous carbon dioxide to the points of use. Two lines are permanently
attached between the easycarb™ and a lockable fill box outside the building. One
line is used to transfer liquid to the system from a distribution vehicle, the other
conducts gas vented by safety devices to the outside of the building. The fill box
station must be located for easy access by the distribution vehicle. Filling is accom­plished by connecting a delivery unit to the fill port in this box. Liquid CO
transferred by pressure differential.

is then

2

FREIGHT
DAMAGE
PRECAUTIONS

GENERAL
INFORMATION

The easycarb™ operates without the need for constant attention. Personnel working
at the use site may need to call their distributor to make occasional output pressure
regulator adjustments, but the other valves and controls on top of the container are
normally operated only when it is necessary to turn off the gas flow for maintenance,
or if the system is damaged by mishap.

4

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(

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.

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An automatic pressure building system makes the easycarb™ a self contained gas
supply system capable of providing gas at maximum continuous flow rates of up to

10.0 lb./hr. (4.5 kg/hr.) See Specification Chart below for desired EC Model.
The easycarb™ is designed to supply gas from the pressurized space that is above

the liquid inside the container. If high-demand applications cause the pressure in this
space to drop below 125 psig (8.6 bar/862kPa), the pressure building regulator opens
to maintain the gas pressure level. The container will hold liquid with no loss as long
as a product is used at a rate listed in the Specification Chart below.

The gas supply line is equipped with a check valve to prevent back flow into the
easycarb™. Back flow could carry contaminants that could freeze in the cold plumb­ing parts, making the easycarb™ inoperative.

Solid CO
70 psig (4.8bar/483 kPa). In service, the pressure is maintained well above this value
to ensure that solid CO2 (dry ice) will not form inside the container.

easycarb™ Specifications

Model EC-150EC-300EC-450EC-600
Part Number
Dimensions

Diameter in. (mm) 20 (508) 20 (508) 20 (508) 22 (559)
Height in. (mm) 34.7 (881) 49.4 (1255) 64.6 (1641) 70.0 (1778)
Weight, Empty lb. (kg) 140 (64) 200(91) 260 (118) 355 (161)

, CO

Capacity

Liquid lb. ( kg) 161 (73) 301 (137) 447 (203) 594 (269)
Gaseous cu. ft. (cu. m) @ NTP (STP) 1403 (37) 2628 (69) 3906 (103) 5195 (136)

Flow Rates

Peak Demand lb./hr. (kg/hr) 4.5 (2.0) 7 .0 (3 .2) 12.0 (5.4) 20.0 (9.0)
Continuous lb./hr. (kg/hr) 3.0 (1.4) 5.0 (2.3) 7.0 (3 .2) 10.0 (4.5)

Minimum Usa

Liquid lb. /day (kg/day) 1. 8 (.82) 2.5 (1.13) 2.7 (1. 22) 2.9 (1.32)

Pressure Building System

Standard Operating Pressure

Safety Device Settings

Inner Container Prim ar y Relief Valve
Inner Container Safety Head

Electrical Requirements**

Heater Vol tage
Heater Current

Saturated @ 125 psig (8.6 bar)

2

No Ventin

e

(dry ice) will form if the pressure in the easycarb™ is allowed to drop below

2

EC15-0C00 EC30-0C00 EC45-0C00 EC60-0C00

125 psig (8.6 bar

300 psig (20.7 bar
450 psig (31.0 bar

* Flow rate using 240 VAC power. Using 208 VAC power, flow rate is 40 lb./hr. (18.1 kg/hr) peak and 30 lb./hr. (13.6 kg/hr) continuous

INSTALLATION
INSTRUCTIONS

Taylor Wharton’s easycarb™ carbon dioxide system is designed to be permanently
installed. The system consists of a specifically designed container that stores carbon
dioxide in the liquid state, and fill connection hardware to allow refilling from outside
the building in which it is installed.

Planning the Installation

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Consult with your customer, and check local code restrictions, before determining a
location for the unit. The container should be installed in a location away from day to
day activity to minimize tampering. It should be accessible for maintenance and
occasional monitoring.

The fill box should be readily accessible for CO2 deliveries 24 hours a day. A lock­able fill box is part of the installation. The fill box location should be within 35-ft.
(10.7m) of the delivery point, due to the limited reach of the delivery vehicle.

For safety and ASME code requirements, the length of the fill line and vent lines from
the fill box to the easycarb™ must not exceed 20-ft. (6m) in length. Consult Taylor­Wharton for technical assistance when installing longer lines to avoid problems.

A stainless steel surface mounted fill box is most commonly used as it minimizes
modifications to the building and installation time. However, flush mounted fill boxes
are available.

5

Note:
This container is manufactured
to ASME pressure vessel
specifications. It should not be
used to transport liquid carbon
dioxide. The easycarb™ is
intended to be transported to
the installation site empty and
filled after it is installed.

Plan the routing of fill and vent lines. These should be in an area well protected from
accidental damage. If you can’t conceal the lines, mount them to the interior walls, or
secure them to overhead structural members as required by many local codes. Avoid
hot areas if possible.

Do not route easycarb™ lines near steam or hot water lines. For local regulations
that require the cylinder to be elevated from the floor, we offer a platform base. If the
platform base is used to elevate the cylinder; the cylinder must be anchored to a wall
by its handling ring. Part numbers of the platform base and wall anchor can be found
in the Replacement Parts List. It is recommended that appropriate local code approv­als be reviewed prior to scheduling the installation.

easy

Supply to Drink

Machine

CARB

Flow Diagram

Supply Line

Pressure Gau

Check Valve

e

Gas Use

ulator

Re

Container

Pressure

Gauge

Regulator

Pressure

Building

Isolation

Valve

Isolation

Valve

Liquid Cont ents

Gau

e

Inner Container

Relief Valve

Fill Valve

Inner Contai ner

Safety He a d

Relief Valve

Fill Line

Vent

Fill
Fill

Station

Pressure

Building Coil

Standard

Components

included on all

easyCARB

products

6

CAUTION:
If lifting by crane or hoist,
insert hooks in
openings on the cylinder ring.
Failure to do so could result
in container damage or
personal injury.

CAUTION:
If the container is installed in an
elevated location, it must be on
a well constructed platform that
will support more than 975 lb.
(422 kg.) When installed this
way, the easycarb™ must be
anchored to the wall from a
point on the top of the
container.

both lifting lug

Cylinder Handling

The easycarb™ cylinder can weigh upwards of 375 lb. (170 kg), but can easily be
moved by using a properly designed hand truck. A special Harper cylinder truck
(Model ULG 650A) is recommended. The container can also be lifted and moved
with a crane or hoist by attaching a sling to the holes, provided in the ring supports on
the top of the cylinder. Do not attach lift hooks to ring. Except for minor tipping on
the hand truck, the container must be kept upright at all times, and should not be
moved or transported full.

Installation Procedure

See page 12 for Component Identification.

1. Determine the location for the fill box on the outside wall.

SPECIAL NOTICE

Be sure and take the height of the fill box into consideration. Do not install box at
face height (approx.5 ½ ft./1.7 m). This can be dangerous during delivery. The
suggested height of mounting is approx. 3 to 4 ft. (.9 to 1.2m) above the ground.

WARNING:
Be sure there are no hidden utility lines in the location selected for mounting.
Consult the building plans, or make a test opening to confirm the wall is clear
of hidden hazards before drilling.

Note:
Nut and ferrule for vent line
and liquid connection are
attached to the plumbing to
prevent loss during shipment.

Fill Station

2. Measure the distance from the container to location where the fill box will be mounted to
determine the length of fill and vent line material required. Be careful to allow for all
routing and for thickness of the outside wall. Avoid sharp bends that may restrict liquid or

gas flow.

3. Fabricate two lengths of ½ in. (12.7 mm) ODT copper or ½ in. (12.7 mm) I. D. nylon
tubing.

4. Drill a small pilot hole through the outer wall surface first to confirm that there are
no utility lines in the location selected, then enlarge the opening to a 2 ½ in. (64
mm) opening.

5. The fill box contains copper tube sections long enough to pass through the wall.
The fill section is already coupled but you must attach the vent section to the

bracket beneath the fill coupling using the strap clamp

and screws provided.

6. Pass the fill line through the wall, and mark for
cutting to length. Pull the fill box back off the wall. Cut
fill line to length, then cut vent line to same length, and
secure with screw to bracket in back of fill box.

7. After cutting the fill box tube sections to length,
install the box. Level the box, then mark four wall
anchor holes and drill; secure with appropriate anchor­ing hardware. Weather seal between the box and the
building exterior is recommended.