Lauda RE 1050 G, Operating Instructions Manual

Page: 17 / 101

ECO GOLD
28.04.10/ YACE0088
Device description
17
4 Device description
4.1 Ambient conditions
Use of the thermostating unit is only admissible under the conditions stated in
DIN EN 61010-1:2001 and DIN EN 61010-2-010:2003 :
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Operation only indoors.
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Elevation up to 2000 m above seal level.
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Siting base impermeable, flat, non-slip and non-flammable.
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Keep distance to walls (
Ì
6.1).
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Ambient temperature (
Ì
11).
The ambient temperature must be taken into account.
−
Permissible mains voltage variations (
Ì
11).
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Maximum relative humidity 80 % up to 31 °C and decreasing linearly to 50 % up to 40 °C.
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Overvoltage Category II and transient overvoltages according to Category II.
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Contamination Level: 2.
4.2 Device types
Heating thermostats
The type designation of the heating thermostats is composed of the prefix E for ECO, the approximate
bath volume in litres and a G for the GOLD device variant.
Example: E 10 G is a heating thermostat with a maximum bath volume of 10 litres in the GOLD device
variant.
With the heating thermostats with a transparent bath there is the prefix of ET for the ECO transparent
bath, followed by the bath volume in litres and a G for the device variant GOLD.
Example: ET 6 G is a heating thermostat with a transparent bath with a maximum bath volume of 6 litres
in the GOLD device variant.
Cooling thermostats
The type designation of cooling thermostats is composed of the prefix R (to identify the cooling device:
Refrigerated), an E for ECO, the bath volume in litres, the minimum attainable temperature (without ar-
ithmetical sign) and a G for the device variant GOLD.
Example: RE 415 G is a heating thermostat with a maximum bath volume of 4 litres and a minimum tem-
perature of -15 °C.
4.3 Pump
All devices are equipped with a pressure pump. The pump has an output with a pivotable outflow elbow.
With the bath and circulation thermostats this is joined to the pump set for external tempering circuits. An
additional output is used for internal bath circulation. By switching the selector at the front on the control
head, the flow can be manually selected or divided between the two outputs.
In the heating range the pump operates up to viscosities of 150 mm²/s. In the controlled mode 30 mm²/s
should not be exceeded.
Using the operating menu, one of six flow-rate levels can be selected for the pump. For small bath ther-
mostats a power level of 1 to 3 is practicable.
When operated as a circulation thermostat with an external load, a higher power level is practicable to
keep the temperature difference between the bath and external load small even at higher temperatures.
The pump connection of the outflow can be closed without any detrimental effects on the pump.
Pump characteristics (
Ì
11)