Related Manuals for RainFlo MHP75A
Summary of Contents for RainFlo MHP75A
- Page 1 ® MHP75A / MHP150A User Manual It is the installer’s responsibility to read, understand, and comply with these instructions.
-
Page 2: Operation Conditions
Thank you for your purchase of a RainFlo Pump! Your commitment to saving water through the use of harvested rainwater is commendable, and is a very important step towards increasing your personal water sustainability. To match your commitment to saving water we have committed to ensuring that the pumps and pump controllers we offer are of the highest quality available. -
Page 3: Installation
4) Installation: • This pump is made for indoor use only. • To prevent suction loss, install the pump as close to the water source as possible. • Mount the pump securely using the base plate bolt holes. • Minimize bending any attached pipes. •... -
Page 4: Maintenance
7) Maintenance: • Disconnect pump when power is interrupted or unstable. • To avoid overheating, don’t restrict the suction end to adjust flow. • Install a dry-run shut off switch to prevent damage. • If there are any abnormal noises, stop the pump immediately and check the connections, hose clamps, etc. - Page 5 Ø13 . 7 5 1” NPT 5 . 1 1 Inlet* Ø . 33 5 . 4 3 6 . 3 0 4 . 2 5 5.11 15.95 *MHP75A Inlet is 1” NFPT / MHP150A Inlet is 1.5” NFPT 10) MHP Pump Curve:...
-
Page 6: Important Notice
11) Overview of Pump Controller: The RainFlo PC115A provides automatic multifunction control for your water pump including start and stop control based on user demand (flow), demand-side pressure display via built-in pressure gauge, run-dry protection and a check valve (non-return valve) function. It provides direct control of water pumps up to 1.25 horsepower at 115V. -
Page 7: Construction Characteristics
14) Applications and Operation: The PC115A electronic controller commands the starting and stopping of single- phase electric water pumps whenever a tap or valve connected to the installation is opened or closed, respectively. When the pump is started, it keeps running as long as any connected tap remains open, supplying the network with the required flow at the related pressure. - Page 8 18) Installation: This device must be assembled and installed by personnel qualified in accordance with local laws, regulations and codes. 18.1 Water Connection (Fig.1) The PC115A must always be installed with the arrows pointing upward, connecting the 1” threaded inlet to the pump’s outlet and the 1” threaded outlet to the point of use. Use flexible pipes for connection to the water network, protecting the appliance form any bending loads and vibrations, a ball valve to isolate the pump system from the network, and a foot valve to maintain prime for suction inlets (Fig.1).
- Page 9 Close the tap mentioned under step (1). After 10-12 seconds the pump will stop running, but the power supply LED (POWER) will remain lit. Any malfunctions occurring after these operations will be caused by improper priming or failure to prime. 20) Starting Pressure Adjustment: (P.
-
Page 10: Installation Illustrations
F) Air is entering the pump through the suction side: the pressure is well below normal, with constant fluctuations. The safety system will engage and stop the pump, the FAILURE LED will light up. Check the seal and connections in the suction pipe. 3 THE PUMP KEEPS STARTING AND STOPPING: There is a small leak in the delivery pipeline: check for any leaking taps or running toilets. - Page 12 ® MHP75A / MHP150A Pump...