204Service Manual – CS7010™ 30 - Solution System
EcoFlex™ Detergent System
The EcoFlex™ detergent system uses dual diaphragm pumps to pump detergent into the solution ow
upstream of the solution solenoid valve. Two detergent pumps are used when necessary to ensure adequate
detergent supply at the higher detergent and solution ow rates. The detergent pumps receive PWM outputs
from the Main Machine Controller to regulate the detergent dispense rate according to the solution ow rate.
The detergent supply line from the detergent bottle is split into two lines, one feeding each detergent pump.
The two lines from the pumps merge into one line, which is then connected to the solution hose upstream of
the solution solenoid valve.
Extended Scrub System
Machines equipped with the extended scrub system will pump the recovered water from the recovery tank
to the scrub brushes when the solution tank is empty. The extended scrub system uses an additional pump
to pump the recovered water to the scrub brushes. In order for the extended scrub system to work, the
extended scrub system must be enabled, the solution tank low sensor must be actuated, and the oat valve
in the recovery tank must be closed to indicate adequate water level in the recovery tank. Note that when
the machine is in the scrub mode:
• The solution pump will continue to run along with the extended scrub pump.
• The EcoFlex™ pumps will continue to add detergent to the recovered water.
Optional Hot Water System (LP and Diesel EcoFlex™ Machines Only)
On EcoFlex™ models equipped with the optional hot water system, the solution control pump pumps the
solution to a heat exchanger. The heat exchanger is plumbed to the engine cooling system and uses the
hot engine coolant to heat the solution as it circulates through the heat exchanger. The hot water system
increases the solution temperature approximately 50 degrees F. The heated solution is then mixed with
detergent and sent through the (open) solution solenoid valve and solution manifold to the brushes.
Note: If your machine is equipped with a hot water system, do not add detergent to the solution
tank as this can foul the heat exchanger.
Optional Wash Hose Kit
The optional wash hose kit uses a separate low-
pressure pump to pump solution from the solution
tank to the hose and nozzle located behind
the Operator seat. The wash hose kit operates
independently and does not require the Operator
to actuate the seat switch. A pressure switch on
the low pressure pump will switch on the pump
when the hose nozzle is opened and the solution
pressure in the hose drops.
To Next Page
Loading...