Changing Cooling Water in Cooling Unit

Demineralised water According to DIN ISO 3696, Quality 3 (or better).
Antifrogen N Anti-freeze with anti-corrosive action
Manufacturer Clariant GmbH D-65840 Sulzbach Tel.: 06196/757-8807 www.antifrogen.de
Mixing ratio water:Antifrogen N 65:35 Percent by volume = 62:38 Percent by weight This is equivalent to frost protection down to -22 °C.

The container in the cooling unit holds 42 l. You therefore require approx. 27 litres of water and 15 litres of Antifrogen N.

HELLER item number 49.200333 will give you coolant water as a prepared mixture.

Handling demineralised water and auxiliary materials:

  • Store demineralised water only for a few days and only in plastic containers.
  • To prevent contamination, demineralised water must not come into contact with the skin or soiled objects.
  • Pumps, hoses, containers and other auxiliary materials, that are used for handling demineralised water or Antifrogen N may not come into contact with other media such as oil or cooling lubricant.

Safety precautions for Antifrogen N:

  • Antifrogen N is harmful to the health if swallowed. If swallowed accidentally, seek medical treatment!
  • Do not inhale fumes.
  • Avoid any contact with eyes, skin or clothing. Wear solventresistant gloves and tight-fitting safety goggles.
  • Remove contaminated clothing immediately. For First Aid measures following contact with the body or inhalation, see Safety Datasheet.
  • Do not allow undiluted or large volumes of Antifrogen N to penetrate ground water, running water or sewerage systems.

Furthermore, observe the safety instructions on the product packaging.

Ladder, Container for collecting used cooling and rinsing water Drinking water for rinsing the cooling circuit, Clean vessel for preparing the mixture, Clean equipment for filling (jug, funnel)

For manufacturer's documentation on the cooling unit, see Subsuppliers' Information (ZI) from "Clariant".

For structure of the cooling unit, see the cooling water diagram.

Dispose of the used cooling water according to the locally applicable regulations.

Draining Cooling Water

Step 1:

Maintenance area safety door opened and secured to prevent closing.

Step 2:

Machine switched off at main switch and secured against being switched on again. This switches off the cooling unit.

Step 3:

Unscrew cover on filling opening.

Cooling Unit
1. Filler Opening
2. Fill level display

Step 4:

Unlock and take out side panel of the cooling unit by twisting the casement fastener.

Step 5:

Guide the hose into a container. Open drain cock and allow the water to flow into the container.

Step 6:

Close the drain tap. Place the hose inside the cooling unit. Attach side panel of the cooling unit.

Step 7:

Before closing the maintenance safety door, ensure that nobody is behind the guard panels. Close maintenance area safety door.

Filling with Flushing Water and Purging Cooling Circuit

Use pure drinking water as flushing water.

Step 1:

Fill with flushing water through the filling opening up to the maximum mark on the filling level indicator.

Cooling Unit
1. Filler opening
2. Fill level display

Step 2:

Switch on machine at main switch and wait approx. 5 minutes. The cooling unit is running, the cooling circuit is vented.

Step 3:

Check level at the filling level indicator. Top up flushing water to maximum mark.

Cooling Unit
1. Filler opening
2. Filling level display

Step 4:

Screw on filling opening cover.

Cooling Unit
1. Filler opening
2. Filling level display

Step 5:

Run the machine for around 2 hours to flush out the cooling circuit.

Draining Flushing Water

Step 1:

Maintenance area safety door opened and secured to prevent closing.

Step 2:

Machine switched off at main switch and secured against being switched on again. This switches off the cooling unit.

Step 3:

Unscrew cover on filling opening.

Cooling Unit
1. Filler opening
2. Filler level display

Step 4:

Unlock and take out side panel of the cooling unit by twisting the casement fastener.

Step 5:

Guide the hose into a container. Open drain cock and allow the water to flow into the container.

Step 6:

Close the drain tap. Place the hose inside the cooling unit. Attach side panel of the cooling unit.

Step 7:

Before closing the maintenance safety door, ensure that nobody is behind the guard panels. Close maintenance area safety door.

Filing with Cooling Water

Do not allow the machine to stand empty after flushing, refill with cooling water immediately.

Use only freshly prepared mixtures with reference ratio 65:35 percent by volume. Do not add the constituents separately, prepare the mixture beforehand.

Step 1:

Fill with cooling water through the filling opening up to the maximum mark on the filling level indicator.

Cooling Unit
1. Filler opening
2. Fill level display

Step 2:

Switch on machine at main switch and wait approx. 5 minutes. The cooling unit is running, the cooling circuit is vented.

Step 3:

Check level at the filling level indicator. Top up with cooling water to maximum mark.

Cooling Unit
1. Filler opening
2. Fill level display

Step 4:

Screw on filling opening cover.

Cooling Unit
1. Filler opening
2. Fill level display