Lauda IN 550 XT, Руководство по эксплуатации

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Protective equipment:
n
Safety glasses
n
Protective gloves
n
Protective work clothing
NOTICE!
Risk of refrigerant escaping from cooling water circuit
Device damage

Before performing cleaning work and decommissioning the
device, or if there is a risk of freezing, drain the cooling
water circuit of the cooling unit using compressed air or
an industrial vacuum cleaner (watertight). To avoid dam-
aging the valve membrane during cleaning, only blow com-
pressed air into the inflow connector while using an indus-
trial vacuum cleaner to vacuum only from the outflow
connector.
If necessary, clean or flush out the device (with new heat transfer liquid, for
example).
If water is used as cleaning liquid, make sure that the device is only operated
in fill mode (cooling unit is therefore switched off). Otherwise, there is a risk
that the device may freeze internally and become damaged as a result.
1.
Connect a hose to the pump connectors (short circuit between the
outflow connector and the return connector).
2. Fill the device with a suitable cleaning fluid. During this time, operate
the device in fill mode.
3. Drain the device via the drain connector.
4. Check the cleaning fluid for dirt or old heat transfer liquid.

If you detect dirt in the cleaning fluid, repeat points 2 to 3.
Otherwise continue with point 5.
5. Remove hose from the pump connector.
6. Dry the hydraulic circuit in the device with compressed air. To do this,
blow compressed air into the device's return connector.
NOTICE!
Observe the following to avoid damage to the control
valve:
- Regulate the compressed air to a low pressure
- Do not allow compressed air to flow in via the flow
connection piece
If the device has been cleaned with a highly oil-soluble liquid
(e.g. ethanol), do not leave it dry for longer periods (1 day) or
transport it, as the pump requires a minimum lubrication.
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