EcoOnlineTM MS3D Controller for Solar Pool Heating Systems

The MS3D is a trouble free automatic digital solar controller with temperature adjustment, manual, winter and tropical mode features. This controller will suit most unglazed (non-glass covered) solar pool heating collectors. This controller is used for setting up and an independent solar pool heating system controlling a dedicated solar pump. Comes with pool and roof sensor, and our new angled roof sensor warming plate.

Advantages of an Angled Warming Plate

•    Modern high-flow collectors use smaller pumps which allow for longer run times and better turnover. This removes warm water surface stratification; lowering heat losses overnight.
•    Provides more accurate internal collector temperature readings than a lone roof-adhered sensor and allows for off-roof mounting for installations involving excessive cable run length.
•    Reduces the number of ON/OFF collector fatigue working cycles and well as the peak fatigue stress polymers experience – extending the collectors’ lifespan.
•    Better samples scattered ambient cloud energy, allowing longer run times during marginal collecting times; maximizing turnover and pool temperature, due to the mixing of the stratification layer.

Independent System Controller Comparison

* Tropical Mode will not function on this unit in Queensland Tariff 33, as it does not have clock and battery backup to retain settings after outage.

System Plumbing Options

This controller is used for setting up an independent solar pool heat system controlling a dedicated solar pool pump. We always recommend Independent Systems, see definitions below or manual. These systems run a small independent pump, typically for 8 hours per day and are actually more energy efficient than systems running through the main filter pump which have to run the large filter pump for 8 hours per day just to pump the solar side. Of course independent systems require separate solar suction and return lines, whereas for older pool these might not have been installed. If that's the case you'll need to go with a plumbing configuration that taps into your existing filter return line to divert water to your roof. There are a few configurations that can be chosen, see below or manual. Most people that do not have independent solar suction and return ports will choose a Manual/Timer System and place the main filter pump on a timer to run during the warmest part of the day. These manual systems can be automated down the track.

If you need to set up a specialized system like for a Booster/Retro Fit System (requires AquaSmart 5 FS or CD controller) or the Motorized Ball Valve System (requires AquaSmart 5 AV controller), please contact us at EcoOnline.

Requirements and Product Limitation

• This controller is used for setting up an independent solar pool heat system controlling a dedicated solar pool pump. Note: type of system requires independent solar lines running into your pool. Non-independent type systems such as a booster type system or systems running through the filter pump will require a different controller.
• This controller comes with a 24meter wire for the roof sensor, please request a longer wire if required (ask for stock levels).
• Requires 12.5mm (1/2 inch) PVC pipe hole size for rubber grommet.