Hydrofarm COSYS Instructions

CO
2
Congratulations on the purchase of our carbon dioxide (CO 2 ) system. Its
unique design and top quality components make it the best CO 2 enrich-
ment system available to the home gardener. Check all your parts carefully
against the diagram and components listed below.
PLEASE READ ALL DIRECTIONS CAREFULLY
BEFORE SETTING UP YOUR SYSTEM.

SETTING UP YOUR SYSTEM

IMPORTANT!
1. Before attaching the regulator to the
CO2 tank, slowly open the tank valve wide open for 3-5
seconds to blow out any sediment that may be in the tank
valve. Reclose the valve tightly. Whenever you are open-
ing the tank valve, do it extremely slowly to avoid damag-
ing the inner seals in the regulator.
2. Make sure the washer is seated evenly in the regulator
valve. Then attach regulator assembly to tank.
DO NOT OPEN THE TANK VALVE YET.
3. Insert the shorter extension tube into the plastic fitting on
the back of the flowmeter.
4. Take the other end of the extension tube and insert it onto
the "T" fitting as shown.

DISTRIBUTION RING

The distribution ring is designed to be suspended above the
plants in a circular pattern.
1. First screw the eyelets in according to the diagram.
2. Then thread the tubing through them in a circular pattern
over your growing area.
3. Connect the return end to the other side of the "T" fitting.
CO2 is heavier than air and will spread downward from the distri-
bution points. Make sure the distribution tubing is secured and
does not interfere with your lighting or light movement systems.
THE HYDROFARM GUARANTEE
Our CO systems are guaranteed to the original owner for 3 years from the date of purchase. Misuse, abuse, or failure to follow
2
instructions are not covered. If you have a problem, recheck your system and timer to isolate the problem. If this doesnʼt rem-
edy the situation, call the place of purchase to get a Return Authorization for the faulty part. Send only that part. Unauthorized
returns will not be accepted. Save your receipt /invoice — a copy is required for all warranty work.
Instructions

ADJUSTING THE REGULATOR

Once the system is securely attached and set up, your regulator
can be adjusted.
1. Plug your solenoid cord into the timer and rotate the dial
until the tabs are in an "ON" position.
2. Very, very slowly open the tank valve until it is fully open.
3. Now, using a screwdriver and a crescent wrench adjust the
PSI gauge so it reads 30 PSI.
4. Tighten the locknut.
5. Unplug the solenoid valve.
Precision
flowmeter
Timer included
COSYS
COSYS20
Distribution tubing included
High quality regulator
Solenoid
TANK NOT INCLUDED