EcoOnline Perf
™
Solar Pool Heating System -- Installation & User Manual
© Copyright 2020 Optex Solar Pty Ltd. All rights strictly reserved.
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So if you’ve used a pool cover before and had disappointing results,
we highly recommend you try using a cover
again after you install our solar pool heating system.
6
Pool Chemistry Compatibility Guide
7
Pump Sizing Guide
7.1
A Word on Pump Sizing Choice
The quick reference tables below outline conservative Australian Standard pump sizing recommendations.
There is a range of pump powers one can choose from. If
thermal
system efficiency is important then choose a pump
at the high end to produce high flow rate; take care not to over-pressurizing your system (see
Optimizing Collector
Pressure
below). If
electrical
efficiency (COP factor) is important to you then choose a pump near the lowest power
range. To help you understand the potential savings from such choices we have created an interactive pump sizing
simulator which can be found on our website at:
www.EcoOnline.com.au/oku-performance-pool-heating-pump-sizing
However, if you go with a lower power pump you’ll need the following:
A slightly larger collector area; the pump sizing calculator will let you know by how much.
You will need to check with the pump manufacture that your chosen pump can still prime reliably at your
pump height.
We highly recommend you use a by-pass line to help your pump prime reliably, see
Installing a By-Pass Tube
or By-Pass Ball Valve
section below.
Lastly you may need to run your main filter pump in the afternoon to help mix the warm water if your pool
volume turnover falls below the 50% - 75% range.
Please note the
silicon joiners
used in the system are
not compatible with acidic pool/spa
water (pH less than 7.2)
. Sodium Carbonate must be added to protect the system from acidic
pH (<7). pH should be maintained between 7.2-7.8 for maximum longevity. If required Sodium
Bisulphate acid can be used to keep the pH down.
Why?
Acidic water with pH less than 7.0 has excess free H+ ions which like to bond to and
hence break apart silicon bonds.
