Heidolph Rotacool - Manual (Page 6)

6
E
SAFETY INSTRUCTIONS
Follow the applicable safety regulations for your laboratory!
Be extremely careful when dealing with inflammable substances.
Before you connect the unit to your power supply, make sure that the
supply voltage is the same as that on the rating plate.
Make sure the unit stands securely!
The unit is not explosion-proof. Caution must therefore be exercised when
using it near flammable and explosive substances.
ASSEMBLY
1. Important
Read the following instructions before switching on. Have any work required on the electrical,
electronic and refrigerating components performed only by suitably qualified professionals.
Disconnect from the mains before servicing!
2. Ambient conditions
Set up the unit on a flat, horizontal surface. Make sure there are no light particles
(polystyrene, paper or the like) in the area of the air intake in the base of the housing (16).
The admissible ambient temperature is between + 5°C and 32°C. Protect the unit against
moisture.
The rotary condenser has to be set up with a clearance of at least
8 cm from any rear wall in order not to obstruct air escaping at the
back of the unit.
3. Operating temperature range
ROTACOOL
– 10 °C to + 40 °C
4. Electrical connection
Switch off the main switch (10). Observing the technical data on the type plate, connect the
unit to the mains voltage from the unit socket (21) using the connection cable supplied.
5. Cooling liquid
We recommend that you use a mix of 50 % water and 50 % ethanol as a coolant for both
normal and low temperatures. You can also use conventional thermal fluids as a cooling
medium.
You should always use coolants with a freezing point of at least 10 K below the operating
temperature. If you want to set an operating temperature of -10 °C, for example, the anti-
freeze properties of the coolant must be ensured at -20 °C.