ADA CO2 System 74-DA Nature Aquarium User Manual

: July 11, 2024
: ADA

Table of Contents

ADA CO2 System 74-DA Nature Aquarium
Specifications
Product Usage Instructions
FAQ
Safety Instruction
Features of CO₂ System74-DA
Names of Product Parts
Connection Diagram
Usage
CONTACT
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ADA CO2 System 74-DA Nature Aquarium

Specifications

Model: CO System74-DA
Origin: Made in Japan
Manufacturer: Urushiyama, Nishikan-ku, Niigata 953-0054, Japan
Components: Regulator and solenoid valve

Product Usage Instructions

Insert the CO2 Metal Hook into the groove of the CO2 regulator and turn it clockwise to attach. To detach, pull the Metal Hook counterclockwise.

Avoid touching the CO2 cartridge with bare hands if white frost appears; cover it with a cloth for handling.
Ensure CO2 is completely used before detaching the cartridge from the regulator.
Dispose of CO2 cartridges properly according to local regulations.
Avoid exposure to high temperatures (>40°C) and direct sunlight.
When connecting to glass equipment, use a Check Valve or Cabochon Ruby to prevent water backflow.
Ensure the fine adjustment screw is tightened before attaching the CO2 bottle.
Insert the CO2 bottle into the connector and turn gently until fully tightened.
Place the assembly on the Metal Hook ensuring it stands upright.
Gradually turn the fine adjustment screw to release CO2 from the outlet.
Tighten the fine adjustment screw temporarily to stop CO2 flow before connecting injection equipment.
Adjust injection volume using the fine adjustment screw while ensuring stability with the setting screw.

FAQ

Q: What should I do if white frost appears on the CO2 cartridge?
A: Do not touch with bare hands; cover with a cloth for handling as it becomes low temperature.
Q: How do I dispose of the CO2 cartridge?
A: Make sure the seal is opened and dispose of it according to your local regulations.
Q: Can I put the CO2 cartridge into fire?
A: No, avoid putting the CO2 cartridge into the fire as it may cause a blowout. Also, avoid high temperatures and direct sunlight during use and storage.

IMPORTANT

Before the installation of this product, make sure to read this instruction manual carefully and understand all of its directions.
Please keep this instruction manual even after reading it and refer back to it when needed.

Safety Instruction

This product is designed to grow and maintain aquatic plants and tropical fish in an aquarium. Please do not use this product for improper purposes.
Read this instruction manual carefully and follow its directions to use this product.
ADA shall not be responsible for any disease and death of fishes, and the condition of plants.
KEEP OUT OF REACH OF CHILDREN

CO2 Regulator, CO2 Cartridge

Use only ADA genuine CO2 cartridges (CO2 Forest Bottle). Never use an adapter that is not ADA genuine products or connect other types of cartridges by modification as it is very dangerous. ※ADA genuine CO2 Adapter (optional) can be connected to large CO2 Tank, such as Tower. In this case, a dedicated hook cannot be used, as it exceeds the applicable glass thickness.
Do NOT mount the CO2 cartridge with wet hands. Keep the CO2 regulator and CO2 cartridge from being wet.
Before use, make sure that there are no deformation, accumulated dust, and any other abnormality at the mounting part of the cartridge and regulator.
Use only ADA genuine products for CO2 supply accessories connecting to this product.
Always use Check Valve or Cabochon Ruby (optional) with this product. The backflow of water may cause the breakage of the CO2 regulator and solenoid valve.
In case white frost appears on the surface of the CO2 cartridge during use, do NOT touch it with bare hands, and cover it with a cloth for handling as it becomes low temperature.
Before detaching the CO2 cartridge from the CO2 regulator, make sure that the CO2 is completely used up.
When disposing of the CO2 cartridge, make sure that the seal has been opened (there should be a hole) and dispose of it according to your local regulations.
Do NOT put a CO2 cartridge into the fire when in use, as well as before and after use. It may cause a blowout of the cartridge. Avoid places with high temperatures (above 40 degrees C) and direct sunlight etc. for using and storing this product.
The fine adjustment screen is for adjusting the CO2 injection volume. Use a valve, such as a Ball Valve, to turn the CO2 injection on or off. Over-tightening of the fine adjustment screw can cause the threads to wear prematurely and make the adjustment difficult.
Do NOT place a regulator attached to a bottle sideways or upside down. This may cause the regulator to break.
If the exterior of the regulator is twisted strongly, the fixing pin protective cover may come off. If it comes off, screw the fixing pin protective cover back and secure it.
There is no functional problem.

Features of CO₂ System74-DA

The 74-DA CO2 system is a fixed depressurization-based (0.3MPa) CO2 injection system. A Forest Bottle and a dedicated hook are included. Using the dedicated hook, it can be adapted for use with aquariums with a glass thickness of 4mm to 6mm. If placed on a 4mm thickness aquarium, please use the included silicon cushion to adjust the regulator’s angle, ensuring its level. Separately sold NA Control Timer and EL Valve (solenoid valve) may be connected to split the CO2 injection. Besides a spare CO2 Forest Bottle for replacement, a separately sold genuine CO2 Adapter can be used alongside it, adapting it to larger CO2 containers. *In this case, a dedicated hook cannot be used, as it exceeds the applicable glass thickness.

Names of Product Parts

Safety Purge hole (Primary pressure)
Safety Purge hole（Secondary pressure）
Connector for a Forest Bottle
Speed controller part
Fine adjustment screw
Fine adjustment setting screw
Joint Stick
CO2 outflow

CO2 Metal Hook mounting method

Insert the CO2 Metal Hook into the groove of the CO2 regulator and turn it clockwise to attach the CO2 Metal Hook to the CO2 regulator. To detach the CO2 Metal Hook from the CO2 regulator, pull the Metal Hook from the regulator while turning the CO2 Metal Hook counterclockwise.

Connection Diagram

The Joint Stick, which is connected to the CO2 outlet, can be removed by pressing on the Release Bush and pulling the Joint Stick out at the same time. Remove the Joint Stick when connecting Pressure Resistant Tube.
The Pressure-Resistant Tube and glass equipment cannot be connected. Go through branching parts (Ball valve etc.), and use the Joint Stick to connect to the silicone tube.
When installing a 4mm thickness glass aquarium, use the included Silicon cushion. Refer to the connection diagram for the attachment position.
Be sure to use Check Valve or Cabochon Ruby to prevent the water from flowing backward into the inside of the regulator.

Usage

Make sure that the fine adjustment screw of the CO2 regulator is securely tightened before attaching the CO2 bottle to the regulator. At this time, the Fine adjustment setting screw should not be firmly tightened.
Insert a CO2 bottle upward into the connector, holding the regulator vertically, and turn the CO2 bottle gently until it stops turning. Turn the CO2 bottle two more turns to tighten the connection completely.
After attaching the CO2 bottle, place it on the Metal Hook, and ensure that the regulator and CO2 bottle are always standing.
Turn the fine adjustment screw gradually with your fingers and make sure that CO2 is released from the CO2 outlet. (Listen for a hissing sound.) In case CO2 does not come out, check if CO2 bottle is completely screwed in.
Tighten the fine adjustment screw temporarily to stop CO2 and connect the CO2 injection equipment, referring to the Connection Diagram as a guide. Then, adjust the proper injection volume by the fine adjustment screw. connect the CO2 injection tools. When setting the CO2 injection volume, tighten the fine adjustment setting screw gradually while making sure that the fine adjustment screw does not move.

Cautions

Be sure to use a CO2 Forest Bottle when replacing a CO2 bottle.
Use Pressure resistant tubing or a Joint Stick when connecting branch fitting (such as a Ball Valve or a Speed Controller.)
Remove Joint Stick from branch fitting when connecting Pressure Resistant Tube to it. Joint Stick can be removed easily by pressing on the Release Bush and pulling the Joint Stick out at the same time.
Do NOT place undue pressure on a speed controller when removing a Joint Stick from it. It may result in the breakage of the speed controller.
Pressure Resistant Tubes and glassware cannot be connected. Be sure to use a silicone tube for glassware.
Use a cutter knife to cut Pressure Resistant Tube at a right angle. A slanted end on the tubing can cause a CO2 leak.
Check Valve wears out with time. Replace it with a new one after roughly a year.
Additionally, damage on the valve in the interior of the Check Valve, or the attachment of unrelated waste can cause the water to flow backward, breaking the regulator.
Do NOT inject CO2 into the aquarium after the light is turned off. Doing so can cause fish, aquatic plants, and microorganisms to suffer from hypoxia.
Always turn the fine adjustment screw and setting screw by hand. The use of a screwdriver or wrench can result in damage.

Contents and specifications

CO2 SYSTEM 74-DA
- Secondary pressure 0.3(±0.1)［MPa］
- Secondary pressure safety device operating pressure at 0.8～1.5［MPa］
CO2 FOREST BOTTLE
- Temperature range for use 0～40℃
- Contents 74g (more than 37 L when vaporized)
- Purity Higher than 99%