Karcher HD 4000 C Stopping the System, Frost Protection, System Shut-Down, B. System Operation

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B. System Operation

HD 4000 C / HD 6000 C

!Danger!

nHealth hazard through cleaning detergents.

Due to the possible adding of detergents to the system water, the water exiting from the system must not be used as drinking water.

Switching the System ON

Open the water tap for water supply and cooling water.

Turn the Emergency-STOP master switch (Q1) to the I (ON) position.

Press the unlock button (S1).

nCarry out the cleaning procedure. The pump stops for a cleaning break of more than 15 seconds. At the same time the 6 hours of continuous availability time is started.

Within the availability time the system starts automatically owing to the drop in pressure when opening a handgun.

Restoring Operational Readiness

Press the unlock button (S1).

4. Stopping the System

Turn the system’s Emergency- STOP master switch to the 0 (OFF) position.

Shut OFF the water supply.

Open the handgun until the water pressure has dissipated.

Using the locking feature, secure the handgun against being opened accidentally.

5. Frost Protection

The water-bearing parts of the system must be protected from freezing, since they could otherwise be destroyed. If the system is to be operated also in freezing temperatures, it must be installed in a frost- free location. Outdoor water lines must be frost-protected (i.e., through insulation or line heaters, or by draining during freezing temperatures).

6. System Shut-Down

If a system is to be shut down during cold periods, it must first be flushed with an antifreeze solution. As a rule, antifreeze products also contain corrosion inhibitors.

B3 5.956-648 A10369 (06/98)