Note the following:
n
To prevent damage to the consumer, fully open the bypass
adjustment wheel on the rear of the device. To do so, turn the
adjustment wheel anticlockwise.
n
Temperature control hoses: Always use the largest possible
diameters and shortest possible tube lengths in the external
liquid circuit.
If the temperature control tube diameter is too small, a tem-
perature drop between device and external consumer occurs
due to flow rate too low. In this case, increase or lower the tem-
perature accordingly.
n
Secure the temperature control tubes with hose clamps.
n
If the external consumer is at a higher level than the device,
emptying of the external volume can occur if the pump is
stopped and there is ingress of air in the external liquid circuit
even for closed circuits. In this case, there is the risk of the
device overflowing.
n
In the event of tube rupture, hot liquid can escape and become
a danger for persons and material.
4.3 Cooling water
4.3.1 Requirements for the cooling water
This section is relevant for the following:
n
For water-cooled devices
NOTICE!
Schema cooling circuit starts leaking due to corro-
sion
Device damage
Do not use corrosive cooling water.
There are specific requirements concerning the purity of the
cooling water. A suitable process for treating and maintaining the
water must be applied to handle the specific impurities in the
cooling water. The condenser and the entire cooling water circuit
can get blocked, damaged and can leak due to unsuitable cooling
water. Extensive consequential damage to the entire cooling circuit
and cooling water circuit may occur. The cooling water quality is
dependent on the local conditions.
n
Free chlorine, e.g. from disinfectants and water containing
chloride results in pitting corrosion in the cooling water circuit.
n
Distilled, deionised or demineralised water is not suitable due
to its high reactivity and results in corrosion in the cooling water
circuit.
Requirements
Before starting up
Variocool
26
Summary of Contents for VC 1200
Page 47: ...Fig 13 Menu structure part 1 Operation Variocool 47...
Page 48: ...Fig 14 Menu structure part 2 Menu structure for Graph Clock and Standby Operation Variocool 48...
Page 103: ...General Variocool 103...
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