6. Re-attach and secure the hosetail locking nut.
Please note: We strongly advise that a non return valve is installed in the flexible tubing
between the CO
2
regulator and your calcium reactor or other chosen piece of equipment to
prevent water flowing back into the regulator.
7. Connect and secure the other end of your flexible tubing to your calcium reactor or other
chosen piece of equipment.
8. Double check that all connections have been made correctly and are secure.
9. You are now ready to open the gas control valve on the CO
2
cylinder. As soon as you
have opened the valve on the
CO
2
cylinder the dial on the pressure regulator should
indicate a reading. If the connection to the CO
2
cylinder has been made correctly
there will be no escaping gas (and no hissing sound will be heard). However, if gas is
escaping (and a hissing sound is heard) please close the gas control valve on the
CO
2
cylinder and then reconnect and tighten the regulator as described in 3 above.
10. You are now ready to open the pressure adjustment knob (see Photo 1) on the V
2
Pressure Regulator by turning it anti-clockwise, and to start dosing CO
2
according to your
application and equipment requirements.
CAUTION
• The adjustment on the V
2
Pressure Regulator is very precise and the pressure adjustment
knob must be turned slowly and carefully to avoid any problems with dosing.
• Do not apply any lubrication to any parts of the regulator.
• Do not attempt to modify or change any parts of the CO
2
regulator.
• The V
2
Pressure Regulator cannot be used in conjunction with a solenoid valve.
• Keep all CO
2
cylinders away from heat.
When to Replace the CO
2
Cylinder
During normal operation the pressure inside the CO
2
cylinder will remain fairly constant until
the CO
2
cylinder is almost empty. Therefore the easiest way to determine when the CO
2
cylinder needs replacing is to note the pressure reading on the V
2
Pressure Regulator dial (see
Photo 1) when the CO
2
regulator is first connected to a full CO
2
cylinder. A significant drop in
the pressure reading should indicate that the cylinder is almost empty and should be replaced as
soon as possible. Please note: The total gas output from a CO
2
cylinder will be dependent on
both the temperature at which the cylinder is filled and the ambient temperature it is used at.
Disconnecting/Replacing the CO
2
Cylinder
1. Ensure that the gas control valve on the CO
2
cylinder is fully closed.
2. Undo the hosetail locking nut on the outlet hosetail (see Photo 1) and remove the flexible
tubing from the outlet hosetail. Any CO
2
trapped inside the tubing will be released and a
hissing sound from escaping gas may be heard.
3. Turn the pressure adjustment knob on theV
2
Pressure Regulator clockwise to the fully closed position.
4. Carefully disconnect the V
2
Pressure Regulator from the CO
2
cylinder by undoing the
securing nut on the V
2
Pressure Regulator with a 28mm spanner or similar tool.
5. Reconnect as described above.
Tropical Marine Centre is not liable for any consequential damages
caused by the use of this product.
Tropical Marine Centre, Solesbridge Lane, Chorleywood, Hertfordshire WD3 5SX
Technical Information Lines
Tel: +44 (0)1923 284151 Fax: +44 (0)1923 285840
Open between 9am - 5pm Mon to Thurs/9am - 12pm Fri.
www.tropicalmarinecentre.co.uk tmc@tropicalmarinecentre.co.uk
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