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RAINMASTER DUAL-PUMP SYSTEMS

BMS Rainmaster Dual-Pump systems are equipped with 'Multi' underwater motor pumps and a high quality electronic control system. The control system automatically switches the pumps on and off in cycles according to water consumption. The two pumps only run simultaneously at peak loads. Dry-running protection is integrated into the pumps. A convenient input keypad allows the setting of all operating parameters such as working pressure range, cyclical switching, rundown time, empty running, load current consumption, dry-running response time, peak-load switch on etc. The control system is preset in the factory, depending on the pump system selected.

Standard Dual-Pump Systems 04/12

The pumps are installed in the rainwater tank and the control system indoors. The mains water top-up is to the rainwater holding tank.

System Inventory

underwater 'Multi' motor pumps with floating suction filter set with coarse meshed filter
2" central connection pipe to connect the pumps
preset electronic DPA control with seperate pressure senor

Professional Package Dual-Pump System 04/12

The Professional is a pre-fabricated package system, which makes rainwater harvesting in large premises simple.

System Inventory

2" central connection pipe with integrated pressure sensor, non-return valves & stopcocks
connections for mains water top-up & charge pump
underwater 'Multi' motor pumps with floating suction filter set with coarse meshed filter
preset electronic DPA control

Why choose the Rainmaster Dual-Pump System?

high operational safety due to advanced control system
increased pump service life due to pump cycling and the use of high quality components
virtually maintenance free
very quiet operation
control system can be connected directly to 230V supply without backup fuses
remote dial out facility

TECHNICAL SPECIFICATION

Pumped fluid: pure water/rainwater
Max immersion depth: 10 M
Operating temp: max 40 degrees celcius
Operating pressure: max 10 bars
Electrical connection: 230 V AC/50 Hz
Overload protection: built in
Insulation class: F/IP 58

Pump Parameters	04	12
Motor data	5 A / 1.2 kW	6.4 A / 1.45 kW
Dimensions	176x406 mm	138x590 mm
Qmax	100 l/min	120 l/min
Hmax	45m	50m
Suction connections	1.00" ID	1.25" ID
Weight	9 kg	17 kg

dual-pump flow chart

To properly determine the unit & tank size most suitable for your premises there are a number of considerations such as roof area, average rainfall, number of occupants/staff and potential uses of the rainwater, which need to be considered. Further options such as UV disinfection so rain water can be used for bathing/body hygiene are available.
A specifically designed highly portable & connectable 3000L tank which fits through tight spaces is available as standard. The 3000L tanks are connectable in series via self sealing collars.Any other tank size is available to order.