Product Description
RainForce Home - Mains Cold Water Top-Up Controller with Alarm and Leak Detection Kit
The Rainforce Home Mains Cold Water Top-Up Controller senses when the rainwater stored in your Rainwater Tank gets too low and automatically adds enough mains water so that you can continue to flush toilets etc until the next time it rains. This ensures a year round supply of water to appliances in low rainfall periods.
It doesn't fill the tank, instead when the water in the tank reaches the low water level (that you define), the solenoid valve opens to top-up the tank with mains water until the level sensor is fully submerged. The Controller then continues to fill the tank for a period that you define. This avoids adding too much water, ensures enough is added to prevent excessive top-up cyles and therefore protects your pump from over working.
The Controller uses a solid state conductivity sensor to sense low water level, avoiding the movement and accuracy issues of a float switch. Conductivity sensors experience no mechanical wear during use leading to long lifespan and reliability.
The Controller comes with leak detection built into the software so that you can act on any faults in the system as quickly as possible, saving water and time. If a leak it detected the Controller halts operation and alerts the user. This prevents potential water wastage due to tank or duct failure. or failure of the solenoid valve.
The Rainforce Home top-up controller is designed to work with any single phase automatic pump up to 10A. The pump can either be hard-wired to the TCA7000 or powered independently. Wiring the pump into the TCA7000 has the advantage of protecting the pump from dry-running as the TCA7000 will stop the pump from running when water levels get too low and will re-activate the pump when the probe becomes immersed again and water is topped-up via the solenoid valve. This function essentially allows the Controller to isolate the pump during a top-up cycle to avoid water useage exceeding the rate of replenishment.
Water is topped up from the 1/2" solenoid via a BSEN13076 and BS8515 compliant tundish. The 3P Tundish acts as a Type AA air gap to comply with BS EN 13076: Devices to prevent pollution by backflow of potable water. The 3P Tundish itself and its’ ½” feed nozzle are both freely rotatable in the wall mounting bracket (supplied).
It is recommended that installation is carried out by a qualified electrician. The Controller must be installed on a dedicated circuit and protected by a 10A fused outlet to protect the pump and controller. Installation instructions are included with the Controller.
Simple to use. Comes with Installation Instructions and Trouble Shooting Guide.
Included Components
- TCA7000 RainForce Home Control Unit
- Mains lead with BS1363 (UK) plug
- 1/2” solenoid valve with 30cm stainless steel braided mains water connection hose with isolating valve (1/2" F BSP),
- 2m of 2 core cable to connect the Solenoid to the Controller
- 3P Technik Tundish with Steel Wall Bracket (DN40 overflow, DN50 outlet).
- Conductivity Level Probe with 20m of cable (this can be extended to order, up to 100m. It carries a very low voltage/current - contact us for details).
- Intallation and Operating Manual
Technical Information
Control Unit
- Dimensions (W x H x D): 171mm x 121mm x 55mm
- Weight: 0.5 kg
- Supply voltage: AC 230-240 V 50 Hz
- Nominal Power Consumption (standby): 5w (excluding pump)
- Internal fuse: 100 mA and 10A
- Pump power outlet rating: AC 230/240 V, max. 10 A (fused)
- Operating Temperature Range Ambient: 0 °C to +40 °C
- Electrical Protection class: II (DIN 57 700)
- Ingress Protection: IP65 (BS EN 60529)
- Electrical Noise immunity: According to EN 50082-1
- Electrical Noise suppression: According to EN 50081-1
Level Probe
- Supply voltage: DC 12 V
- Probe current: 1.2 mA
- Probe material: Stainless steel
- Cable length: 20m (contact us for lengths up to 100m)
- Weight: 0.2 kg
- Principle of operation: Conductivity
- Medium: Clean water
1/2" Solenoid Valve
- Dimensions (W x H x D): 95mm x 80mm x 100mm
- Weight: 0.5 kg
- Supply voltage: AC 230-240 V 50 Hz
- Power consumption: max. 5.5 VA
- Connection cable: 2m
- Mounting position: Any
- Medium: Clean water
- Maximum pressure: 10 bar
- Connection: Inlet: 1/2" BSP
- Function: normally closed
- Protection: IP65 (EN 60529)
Note: the TCA7000 can be provided with other size solenoids (up to 2") please contact us for details and pricing.
Documents
- TCA7000 - RainForce Home - Electronic Mains Cold Water Top-up Controller Brochure (pdf).
- TCA7000 - RainForce Home - Installation and Operating Manual
