Hotline FAQ: SubDrive/MonoDrive

Franklin’s SubDrive and MonoDrive systems have both red and green lights.  What do they do?

The green light is the power light.  When green is on steady, it means the unit has electricity and is waiting to run.  Not unlike sitting on the sidelines waiting to play in the big game.  Once the pump and motor are activated, the green light begins to blink.  A blinking green light tells you everything is “good” and your system is running.  When the red light is on, it means the SubDrive or MonoDrive has found something it does not like.  It is like the “check engine” light on your car.  While it may continue to operate, the red light means something is not quite right and your system is calling for help.

How SubDrive and MonoDrive Measure Water Pressure

SubDrive and MonoDrive, Franklin Electric’s constant pressure controllers, cover ratings all the way from ½ to 5 horsepower, but they all use the same component to measure water pressure. We call it the SubDrive/MonoDrive pressure sensor. In this issue of Franklin AID, we’ll give you a better understanding of how this rugged device works. Continue reading

MonoDrive: Constant Pressure Available for Single-Phase Systems

 The MonoDrive is the newest member of Franklin Electric’s Constant Pressure family. It is designed to answer the need posed by many home owners and water well contractors for a constant pressure system that can be installed on existing 3-wire single-phase water systems. It is great for homes that have a wide range of flow demand with performance in the ¾ or 1 Hp range, and with MonoDrive there is no need to replace the pump, motor, or the pressure tank that are already in place.

Easy Upgrade For Existing Systems
The CP Water MonoDrive is intended for use with conventional ¾ Hp or 1 Hp pump and motor systems that are currently installed. The existing pump, motor, and pressure tank can be used to keep installation costs low. Simply install the MonoDrive controller in place of the 3-wire control box and replace the pressure switch with the pressure sensor that is provided with the MonoDrive unit. Continue reading