Union Pury 250e, User Manual

Page: 15 / 28

Manual Pury 250e Commissioning
Manual Pury 250e 2006-06-08
15
4. Commissioning
As soon as the cooler is connected to line power, the Peltier element will start
cooling. The display will immediately show the cooling temperature. After
approximately 15 minutes the cooler will reach its temperature set-point.
4.1. Control menu
In this chapter, the temperature control and duty cycle for the condensate pump are
discussed. Default values are set at the factory that immediately guarantee normal
operation and some adjustment may eventually be required to suit local conditions.
The " ▲ " and " ▼ " keys alter the values in the display to + and – values. The "
Ξ
" key
takes you one level higher in the menu. The " ↵ " key takes you one level lower in the
menu.
▲
Ξ
▼
↵
Cool 3.0°C and Amb 25.0°C shows a cooler temperature of 3°C at an ambient
temperature of 25°C. The "
↵
" key takes you to the next level down in the menu.
▲
Ξ
▼ ↵
Setpoint = 3.0°C shows the cooling set-point temperature. By pressing the " ▲ " and
" ▼ " keys, the temperature set-point can be altered. A value 3.0° C is the default
value. The " ↵ " key takes you to the next level down in the menu.
▲
Ξ
▼
↵
Setpoint EXT T:25°C displays the cooling fan activation temperature and the fan
switches on if the ambient temperature exceeds this value. The "
↵ " key takes you to
the next level down in the menu.
▲
Ξ
▼
↵
Diff Ambient T:10°C determines the difference between ambient and cooler
temperature. In this example, the difference is 10°C. This difference indicates the
degree of drying and the 10°C (preset in the factory) may not be reduced or the unit
will switch “off”. Below this point there is a risk that even after the condensate key
displays “off”, the selected temperature <10°C will not be reset.
Diff Ambient
T: 10°C
Setpoint EXT
T: 25°C
Setpoint=
T: 3.0 °C
Cool 3.0°C
Amb 25.0°C