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UF V (E3) 10/2020 Page 36/119
4.4.2 Connection of cooling water inlet for water cooling
Connect the cooling water outlet before connecting the cooling water inlet.
Requirements for the cooling water:
• Water type: cooling water, air conditioning water, tap water
• Water intake temperature: 8 °C / 46.4 °F up to 23 °C / 73.4 °F
• pH value 4 up to 8
• Water hardness of max. 142.8 mg/l (ppm) = 10 English (Clark) degrees = 8.32° grains per U.S. gallon =
1.4285 mmol/l.
• Particle size < 100 µm
• Connection pressure 1 bar up to 10 bar overpressure
• Pressure difference between inlet and outlet: at least 0,2 bar; 0,5 bar recommended. A higher pressure
difference can result in flow noise.
• The water inlet and outlet should be provided with a shut-off slide or water-tap.
Water demand:
• Average 10-50 l/h, depending on the intake temperature
• Short-term (duration up to 2 minutes) up to 400 l/h
BINDER GmbH is NOT responsible for the water quality at the user’s site.
Any problems and malfunctions that might arise following use of water of deviating quality is
excluded from liability by BINDER GmbH. This includes in particular a high particle content,
which may result in blockage of the water flow control valve.
The warranty becomes void in the event of use of water of deviating quality.
Fasten the 1/2‘‘cooling hose to the connection of cooling water outlet “IN” on the chamber rear. Observe
the following points:
• You can use a part of the supplied water hose for the cooling water inlet. In case another hose is used,
it must be pressure-resistant up to 10 bar.
• Put the hose on the hose nozzle with screwing and secure it with one of the four supplied hose clamps.
Connect the hose nozzle to the connection “IN” and screw on the union nut.
• For the hose connection to the domestic water connection, we recommend to also use the supplied
hose nozzle with screwing and secure it with one of the four supplied hose clamps.
• Before turning on the chamber, check the connection for leaks.
Water supply is automatically effected via the water connection “IN”.
4.4.3 Connection kit for cooling water
The ultra-low temperature freezer with water cooling comes with a connection kit. It consists of the following:
• Hose burst protection device
• 4 Hose nozzles with screwing (union nut)
• 4 hose clamps
• 6m water hose 1/2'‘, divisible for inlet and outlet, approved for max. 15 bar, max. 95 °C
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