Pool Controls Chemigem D10 User Manual page 14

Installing Solenoid Valves
The solenoid valves should be fitted as close as possible to the injection manifold or
tapping band. The Y-piece should already be close to the manifold.
The valves must be attached to a vertical surface above the top of the chemical drums but
no more than 750mm above the base of the drums.
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Note: if you are installing a ChemiGem below the pool water surface level and/or if the
pool is heated, a dosing pump model may be more suitable. Valve models may require
isolation valves and/or venturi systems to be fitted to maintain adequate suction pressure.
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Use only the tubing supplied with your ChemiGem . Use of other types of tubing may
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damage your ChemiGem and void your warranty. Ensure tubing is clean and free from
dirt or sand before fitting.
Each valve is marked by a label with the outlet being the down arrow. For dual-valves the
outlets are the inner spigots. Connect one end of a length of tube/s to the outlet/s and
connect the other end to the injection point or the y-piece.
Installing the Peristaltic Pumps (Dosing Pump Models)
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Mount the peristaltic pumps unit adjacent to the ChemiGem Power Supply, as it is hard-
wired to this power supply.
Cut lengths of tubing that will reach from the base of each peristaltic pump to the injection
point or Y-piece. Connect one end of the tubing to the outlet side of the peristaltic pump
(the direction of flow is indicated by an arrow on the front cover of the pump.) Connect the
other end of the tube to the injection point or y-piece on the manifold.
Installing the Suction Tubing to the Chemical drums
Cut another length of tubing that will reach from the base of the valves or peristaltic pumps
to the base of the chemical drum. Make sure the chemical drums are in a safe and secure
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location, preferably about 2 metres from the ChemiGem .
Connect one end of a tube to the inlet side of the valve or peristaltic pump (the direction of
flow is indicated by an arrow on a label or the front cover of each peristaltic pump.)
Drill an 8mm hole in the lids of the chemical drums and pass the tubing through the hole in
the drum lid. Place a sinker on to the end of the tubing that will be in the drum and then
attach the drum filter. Note that the drum filter incorporates a non-return valve to prevent
back-flow into the chemical drum. Connect the correct pump/valve to the correct
chemical drum.
Before placing the tubing into the drum, measure the tubing against the outside of each
drum and wrap several turns of PVC tape around the tubing above the drum lid so that the
drum filter will be 10-15mm above the bottom of the drum. Lower the drum filter and sinker
into the drum and screw on the lid.
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