Disclaimer:
Products in this specification manual must by regulation be installed by licensed and registered trade people. The manufacturer/distributor
reserves the right to vary specifications or delete models from their range without prior notification. Dimensions and set-outs listed are
correct at time of publication however the manufacturer/distributor takes no responsibility for printing errors.
Operation
Commissioning
Put a small amount of water in the tank (just above the level of the pump inlet). Prime the pump if surface mounted. Turn power to the rain2main
on. Open a tap on the outlet side of the Rain2Main (or have someone flush the toilet). The pump will start. Turn off the tap, and the pump will stop
(after a run-on period of 15 seconds). Temporarily close the valve between the tank and pump inlet, or drain the tank to below the pump inlet. This
indicates to the Rain2Main that there is no water in the tank, and it will switch to mains supply operation after 5 failed attempts to draw water from
the tank. Again, open the tap or flush the toilet. Mains supply water will fill the cistern. Close the tap, open the tank valve and restart the Rain2main.
If there are any variations to these outcomes, please see the troubleshooting section.
VADA - Rain2Main Automatic Rainwater Controller
MAINS SUPPLY MODE
Rain2Main has a mechanism to prevent the pump from running with no water. If the tank is empty or there is a blockage or partial blockage
somewhere in the system the following process will occur:
1. If Rain2Main is supplying water and is operating normally, it will activate the pump to supply rain water.
2. If the Waterswitch detects no flow of rain water from the tank after approx 30 seconds of pump operation it will shut the pump off and revert to mains
water supply.
3. Mains water will then be supplied for approx 30 seconds after which the Waterswitch will revert back to the pump to check for rain water supply.
4. The pump will then operate for approx 20 seconds during which time the Waterswitch will be checking for rain water flow from the pump. During this
period the Waterswitch will also allow 2 five second bursts of mains water to flow through the system to keep water flowing to the
source of demand.
5. If after this 20 second period the Waterswitch detects no flow of rain water from the pump it will then lock the pump out of operation for a period of
24 hours. During this lock out period only mains water will be supplied.
7. Automatic Lockout Reset Feature
Event Reset Time
1st lockout 24 hours
2nd lockout 160 hours (Rain2Main will check for mains water every week following, until water is available in the tank)
This feature can be over ridden by switching the unit off for 10 seconds.
General Operation
Your Rain2Main operates entirely automatically without intervention. If electrical supply is cut in your neighbourhood, Rain2Main will automatically
revert to mains supply water, as there is no power to drive the pump. When power resumes, Rain2Main will continue to operate normally.
If town supply water is shut off in your area, Rain2Main might not be able to detect water demand in the household (e.g. if the toilet cistern needs
refilling). By pressing the manual override button, you can override normal control and start the pump to supply water out of the rain water tank.
SERVICE AND MAINTENANCE
Rain2Main is a warm, dry environment for hibernating insects. These can cause electrical malfunction. Ensure that your property is vermin free.
Rain2Main is electrically connected. Ensure that it is isolated from electrical supply during installation and any subsequent service work.
Rain2Main should only be serviced by a Pentair Water service agent.
Rain2Main Service To reset from ‘loss of prime’ mode:
Before removing Rain2Main for service: a) Turn off power for 10 seconds
1. Switch off power to Rain2Main before proceeding. b) Turn power supply back on
2. Close shut off valves at inlet, outlet and water tank gate valve. c) Reprime the pump. Check for blockages in suction line.
3. Carefully release all pressure from the pump and piping system.
4. Never tighten or loosen fittings while the pump is operating. Rain2Main should resume normal operation.
6. The LED on the Waterswitch will flash red during this period to indicate that the tank water is not available.
