Identification Labels On The Ultracool Unit; Water Connection - Lauda UC 2 Operation Manual

3.4 IDENTIFICATION LABELS ON THE ULTRACOOL UNIT

You can find the following labels on the Ultracool unit:
Water inlet from
the installation to
the UC unit

3.5 WATER CONNECTION

Leave at least 1.5 meters (5 feet) of flexible pipe right after the chiller's inlet and outlet connection. This will
allow moving the chiller for a better maintenance access without dismantling the water pipes.
The chiller should be located as close as possible to the application. Pressure drop in the pipe should not
exceed 0.7 bar. The water lines must be in pipes of at least ½" for UC 2 and UC 4 models, 1" for UC 8 to
UC 24 models, 1 ½" for UC 50 and UC 65 models and 2 ½" for UC 80 and UC 100 models.
Minimize the number of bends in the water lines. The length of hose, number of fittings, valves, etc. will also
cause an increase of the pressure drop.
Always install thermal insulation for all pipes or, at least, make sure that the pipes are opaque to the light.
When possible, install the water lines at the same level as the chiller until reaching the application The height
difference between the chiller and the application should never exceed 10m (33 feet). In the installations in
which the water level of the circuit exceeds the maximum level of the tank inside the Ultracool unit, it will be
necessary to install a check valve in the water outlet of the Ultracool unit and a solenoid valve in the water
inlet (an accessory is available including these elements).
To prevent rusting of the water pipes, we recommend plastic, rubber or stainless steel pipes and brass fittings.
Where flexible tubing is used, it should be of reinforced construction and rated for a minimum working
pressure of 6 bar g (90 psig) within -15ºC and 40ºC (5ºF and 104ºF).
Water outlet from
the installation to
the UC unit
14
Drain Danger, risk of electric shock