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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

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Inlet connection : 1”

Outlet connection : 1”

Non-water hammer check valve.

Dry-running protection system.

Pressure gauge.

Manual start button (RESET).

AUTORESET function for automatic start after a failure.

Power supply LED (POWER).

Pump switch-on LED (ON).

Safety system activation LED (FAILURE).

Power supply voltage: 1~115-125V

Maximum current : 16 A

Max pump power : 1100W(1.25 HP) at 1-115-125V

Frequency : 50/60 Hz

Protection class : IP 65 (*)

Ambient temperature : 0 /+140° F

Liquid temperature : 0 /+140° F

Max flow rate : 44 GPM

Adjustable starting pressure : 20 - 35 PSI

Max operating pressure : 145 PSI

(*)Provided the cable glands and screws in cover have been suitably tightened 

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Handling and Inspection:

Handle with care. Dropping and impact can damage the product.

Before proceeding with installation, make sure the unit shows no visible signs of 

damage, otherwise contact your dealer.

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Construction Characteristics:

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 Specifications:

Summary of Contents for MHP150A

Page 1: ... MHP75A MHP150A User Manual It is the installer s responsibility to read understand and comply with these instructions ...

Page 2: ...iance Mainly applicable for pumping industrial fluids such as mineral water soft water pure water clean oil and circulation and boosting of other weak chemical industrial mediums Rainwater harvesting systems Greywater systems Water treatment processes Industrial cleaners and dishwashers Water boosting applications Heating and cooling for industrial processes Air conditioning systems Air freshening...

Page 3: ...reliably grounded with a circuit breaker The power cord should be less than 15 feet and approved for the current delivered to this pump Ensure that you have made the correct electrical connections for the pump To avoid burning the seal and damaging the pump never let the pump run without water The fan should turn freely by hand when disconnected from power and water The fan should rotate clockwise...

Page 4: ...ermal protector for damage The pump does not pump properly The head is too high The water level is too low Intake isn t in water No water Leak in inlet or outlet hoses Make sure the head isn t too high Verify the suction head is in water Prime the pump The pump runs but no water Intake is blocked Impeller is corroded Intake isn t in water Pump isn t primed Leak in suction pipe Check suction height...

Page 5: ...15 95 5 43 6 30 1 NPT 4 33 4 25 Ø 33 Ø13 75 5 11 9 29 8 19 Inlet 5 11 MHP75A Inlet is 1 NFPT MHP150A Inlet is 1 5 NFPT 9 Dimensions 10 MHP Pump Curve ...

Page 6: ...As with most pump controllers the system high pressure is based on the pump output The pump start pressure low pressure threshold and start trigger is adjustable through a screw on the back side of the unit Your PC115A pump controller features a built in pressure gauge located on the right side of the unit As with many hydraulic devices this gauge displays pressure in units called bar One bar is a...

Page 7: ...n for automatic start after a failure Power supply LED POWER Pump switch on LED ON Safety system activation LED FAILURE Power supply voltage 1 115 125V Maximum current 16 A Max pump power 1100W 1 25 HP at 1 115 125V Frequency 50 60 Hz Protection class IP 65 Ambient temperature 0 140 F Liquid temperature 0 140 F Max flow rate 44 GPM Adjustable starting pressure 20 35 PSI Max operating pressure 145 ...

Page 8: ... 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 an...

Page 9: ...anner systematically every thirty minutes for 24 hours If the failure still persists after all these attempts the system will remain in this condition until the problem has been resolved by manual intervention or when power is recycled closed and that there are no leaks B The electrical connection is incorrect refer to the instructions in Fig 2 C Electronic board malfunction replace the electronic...

Page 10: ...p 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 11: ...34 32 30 28 26 44 42 40 38 36 24 22 20 18 16 14 12 10 8 6 4 2 0 GPM 30 50 40 20 10 0 H ft PC115A Friction Loss ...

Page 12: ... MHP75A MHP150A Pump ...

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