Rainbow Pool Products Sens-R-Trol, Instruction & Installation Manual

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SENS – R - TROL
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The Sens-R-Trol is a very versatile device and may be
used to control many types of erosion feeders using
either Bromine or Trichlor tablets. It may also be used
with the two doses liquid Dichlor, Sodium or Calcium
Hypochlorite solution utilising a relay to control the
dosing pump. Calcium Hypochlorite can also be dosed
via the Pulsar Feeder.
The output of the Sens-R-Trol is 12 volts D.C. at 700
M.A. and solenoid valves and relays should be
compatible with this. Sens-R-Trol uses a direct plug in
transformer with a safe low voltage output of 12 volts
A.C.
However, the transformer, which plugs into the mains,
should be protected from the weather and accidental
splashing. Alternatively it can be mounted on a weather
proof box.
The Sens-R-Trol unit itself contains electronic
components and should be protected from extremes of
heat and freezing conditions.
Tools Required
*
Hacksaw
*
Suitable pipe cement E.g. Tangit or similar
*
A 1½ T: is provided to house the Sens-R-Trol.
Choose a position according to the diagram provided.
The ‘T’ is 100mm in length and 35mm of pipe should be
removed to accommodate the ‘T’. Sometimes it may be
necessary to re-route pipe work if there is insufficient
space available.
The Sens-R-Trol should be fitted down stream of the
brominator / chlorinator.
The position of the solenoid control valve is dependant
upon the type of chemical dispenser being used. It is
usually sited on the inlet side of the brominator /
chlorinator.
Please note: - The solenoid valve provided is NOT
suitable for strong Trichlor solutions. An alternative
solenoid valve and/or protection with an inverted
U-bend should be used.
The red connectors on the valve cable plugs onto the
spade terminals on the solenoid valve. Polarity does not
matter.
The plastic cap on the tip of the sensor must be
removed before assembly of the Sens-R-Trol into the
T-piece.
This cap prevents the wick from drying out. If the
system is drained for some reason the Sens-R-Trol
should be
removed and the sensor recapped.
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To allow the Sens-R-Trol to operate efficiently, it is
necessary to maintain a few simply aspects of water
quality.
1. Adjust the total alkalinity to 120 ppm (Sodium
Hypochlorite and Bromine) 150 ppm (Sodium
Dichlor).
2. Adjust the pH to 7.4 – 7.6. This is essential for
the correct operation of the sensor.
3. Turn the adjustments know on the Sens-R-Trol
just past halfway (12 – 1 o’clock) to start.
4. Check the solenoid valve is open and water is
flowing through the brominator / chlorinator.
5. Test the water for bromine / chlorine at regular
intervals until the required residual is achieved.
6. When the required residual is reached turn the
control knob on the Sens-R-Trol until the
dosing light just goes off. Fine adjustments can
be necessary over the next 1 – 3 days.
Important:
*
Allow the system to settle down after each
adjustment.
7. Shock doses your pool or spa to prevent a
build up of organic debris.
8. Regular removal (e.g. by backwashing) of
some of the water and addition of fresh water
will prevent the build up of total dissolved
solids.
* Try to maintain your pool water chemically balanced. For further information see the PrimMix Balanced Water Booklet.
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