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Summary of Contents for Deltec Twin-Tech 1500
- Page 1 INSTALLATION INSTRUCTIONS FOR THE DELTEC TWIN-TECH CALCIUM REACTORS...
- Page 2 Models, tank size and overall footprint • Twin-Tech 1500 – for aquariums up to 1,500 litres – 310 x 180 x 590mm • Twin-Tech 3000 – for aquariums up to 3,000 litres – 390 x 240 x 590mm •...
- Page 3 Connections and general layout Use the following diagram as an overview to allow you to connect the reactor together. Details of assembly are given in the text. Control Functions 1. Media chamber A – Mode button 2. Gassing chamber B – Water flow rate per 24 hours in litres* 3.
- Page 4 Assembly of the reactor Step 1 – Positioning. Choose a suitable place to position the reactor so that you have easy access to all parts for operation and for maintenance, especially the media chamber for topping up. You must also decide where to position the controller relative to the reactor. This should be quite close to the aquarium or sump taking into account the length of hose and cable runs.
- Page 5 Step 8 – Connecting the feed pump. The unit is fed with tank water using a small DC feed pump which is supplied with the system. The pump is fitted with a sponge pre-filter before the pump and a fine filter and non-return valve after the pump. It is important that these are installed and maintained to prevent water back syphoning from the reactor.
- Page 6 Step 11a – Final bleeding of the pump (manual) This is potentially the easiest part of the process but can become the most fiddly if not carried out properly. On the top of the reactor there are 2 bleed ports with orange taps. Ensure that the outlet pipe from the reactor is still positioned above the height of the reactor so that water cannot escape.
- Page 7 You will see that on the controller there is a central LCD display and a number of LED indicators and buttons as shown on the diagram below. A – Mode button B – Water flow rate per 24 hours in litres* C –...
- Page 8 For example: if the “water volume” is set to 80 litres per day we would suggest that you set the “Degasing After” setting also to 80 litres so that it degasses once per day. For tanks running easily within the total capacity of the reactor, it is possible to increase this duration and the only reason to de-gas more than once per day would be if the demand was close to reaching the maximum capacity of the reactor.
- Page 9 To facilitate this, there is a power port to the left of the float switch cable into which a 10V power source can be connected. This power supply can be linked to either a simple timer or to an aquarium computer and used to hold off the reactor from dosing during part of the 24-hour cycle.
- Page 10 An alternative method is to dilute the effluent 1:3 and then multiply the test result by 4 to get the final reading. This method uses less reagent which may be important if testing regularly. Calculating the correct reactor effluent flow volume The flow volume of effluent from the rector for any aquarium will depend on a number of factors: •...
- Page 11 For normal operation, the recirculation speed of the pump should be set so that the fine bubbles pass down the gas chamber and then return to the surface of the gas pocket. The lower level should be carefully set so that you can still see the central suction pipe and observe that very few bubbles are passing over into the media chamber.
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Page 12: Troubleshooting
Maintenance and topping up of media. It will be necessary to carry out regular maintenance on the reactor and to top up the dissolving media to maintain the optimum functionality over time. 1 – Topping up of reactor media: This should be carried out continuously to maintain the same level of media within the reactor.